In the chemical industry, transferring corrosive liquids presents significant challenges. Chemical transfer pumps, as critical equipment, must possess excellent corrosion resistance to ensure system safety and operational stability. Selecting the right material is crucial for extending the pump's lifespan and improving production efficiency. Today, we will explore the common materials used in corrosion-resistant chemical transfer pumps and their applications.

1. Stainless Steel

Stainless steel (Stainless Steel Chemical Pumps)is one of the most commonly used materials in corrosion-resistant chemical transfer pumps. It offers excellent corrosion resistance, particularly when handling weak acids, weak alkalis, and other mildly corrosive liquids. Common stainless steel grades include 304, 316, and 316L, with 316L offering superior intergranular corrosion resistance due to its lower carbon content. Stainless steel pumps are suitable for industries such as chemicals, food processing, and pharmaceuticals, where corrosive media are frequently encountered.

2. High-Nickel Alloys

High-nickel alloys, such as Hastelloy and Inconel, perform exceptionally well in extreme corrosive environments. These materials provide outstanding resistance when handling strong acids, strong alkalis, and chloride-containing media. High-nickel alloy pumps are typically used in chemical processes requiring high corrosion resistance, such as the transfer of concentrated sulfuric acid, hydrofluoric acid, and phosphoric acid.

3. Plastic Materials

With advancements in technology, corrosion-resistant plastic materials (Plastic Chemical Transfer Pumps) are increasingly used in chemical pumps. Plastics like polyvinylidene fluoride (PVDF) and polytetrafluoroethylene (PTFE) are highly valued for their excellent chemical resistance, especially in high-purity chemical environments. Plastic pumps are commonly used to transfer highly corrosive, strong oxidizing media, such as strong acids, strong alkalis, and organic solvents.

4. Silicon Carbide and Ceramic Materials

Silicon carbide and ceramic materials are important choices in chemical pumps due to their superior wear resistance and corrosion resistance. These materials are particularly effective in reducing wear and extending pump life when transferring corrosive liquids containing solid particles. Silicon carbide pumps are mainly used for transferring high-hardness, highly corrosive fluids, such as concentrated acid and alkali solutions, and suspensions.

5. Rubber-Lined Pumps

For transferring strong acids, strong alkalis, or corrosive media containing particles, rubber-lined pumps offer an economical and effective solution. The pump body is lined with corrosion-resistant rubber, such as neoprene or fluoroelastomer, effectively isolating the media from contact with the metal pump body and preventing corrosion damage. Rubber-lined pumps are widely used in mining, chemical processing, electroplating, and other industries.

The material selection for corrosion-resistant chemical transfer pumps directly impacts the durability of the equipment and the safety of production. When purchasing, it is essential to choose the most suitable material based on factors such as the chemical nature of the transfer medium, operating temperature, and pressure conditions, to ensure optimal pump performance in specific applications. Our company is dedicated to providing high-quality corrosion-resistant chemical pumps, helping our customers achieve efficient and safe transfer solutions in demanding chemical environments.

If you are interested in changyupump products or have any questions, please feel free to contact our professional team. We are here to serve you.

Magnetic pumps, designed for leak-free transportation of corrosive liquids, are widely used in industries such as petrochemicals, biopharmaceuticals, renewable energy, and environmental protection. Their core advantages lie in their simple structure, reliable operation, lack of seals, and zero leakage, making them particularly suitable for transporting flammable, explosive, toxic, or corrosive media. In this article, we will provide a detailed introduction to the basic structure and working principle of magnetic pumps.

I. Structure of Magnetic Pumps

The main components of a magnetic pump include the following key parts:

1.Pump Body

The pump body is the fundamental shell of the magnetic pump, responsible for containing and transferring the liquid. It is usually made from corrosion-resistant materials such as stainless steel, plastic, or alloys to handle various corrosive media.

2.Impeller

The impeller is the core component of the magnetic pump, connected to the internal magnetic rotor. It transfers the motor's kinetic energy to the fluid, generating kinetic energy and pressure. The impeller's design and material directly affect the pump's efficiency and performance.

3.Inner and Outer Magnetic Rotors

The drive system of the magnetic pump consists of an inner and an outer magnetic rotor. The outer magnetic rotor is connected to the motor shaft and rotates to generate a magnetic field; the inner magnetic rotor, fixed inside the pump and connected to the impeller, is driven by magnetic force, achieving non-contact torque transmission. This design keeps the pump chamber and drive components completely isolated, preventing media leakage.

4.Isolation Sleeve

The isolation sleeve is a crucial sealing element in the magnetic pump, typically made of corrosion-resistant and high-strength materials. Positioned between the inner and outer magnetic rotors, it ensures effective magnetic transmission while fully isolating the liquid in the pump chamber from the outside environment, ensuring zero leakage.

5.Bracket and Pump Shaft

The bracket supports the entire pump body, ensuring stable operation. The pump shaft connects the inner magnetic rotor and the impeller, ensuring the proper functioning of the rotating parts.

II. Working Principle of Magnetic Pumps

The working principle of magnetic pumps is based on magnetic coupling drive technology. The process can be summarized in the following steps:

1.Motor Drives the Outer Magnetic Rotor

When the motor starts, it drives the outer magnetic rotor via a coupling, causing the outer magnetic rotor to rotate and generate a magnetic field.

2.Magnetic Field Drives the Inner Magnetic Rotor

The magnetic field from the outer magnetic rotor passes through the isolation sleeve, driving the inner magnetic rotor to rotate synchronously. The inner and outer rotors are not mechanically connected, achieving torque transmission without contact.

3.Impeller Rotates with the Inner Magnetic Rotor

The inner magnetic rotor is fixed to the impeller, causing the impeller to rotate along with it. The fluid is drawn into the pump body, and the centrifugal force generated by the rotating impeller pushes the liquid out through the pump’s outlet.

4.Liquid Transportation

As the liquid enters the pump chamber, it is accelerated by the centrifugal force from the rotating impeller and expelled through the outlet, completing the fluid transfer process.

III. Application Fields of Magnetic Pumps

Magnetic pumps, due to their superior sealing performance and reliability, are particularly suited for use in the following fields:

• Chemical Industry: For transporting various corrosive liquids, acidic and alkaline solutions, and chemical reagents.
• Pharmaceutical Industry: For transferring high-purity pharmaceutical liquids, avoiding contamination.
• Renewable Energy Industry: Used in the transportation of battery liquids, liquid transfer in wind power equipment, etc.
• Environmental Protection Industry: For handling hazardous wastewater, chemical waste, and other harmful substances.

With their unique structural design and working principles, magnetic pumps are an ideal choice for transporting highly corrosive and hazardous liquids. Understanding the structure and working principle of magnetic pumps can help businesses select and utilize the right equipment to improve operational efficiency and safety. As a manufacturer of magnetic pumps, Changyu Pump & Valve is dedicated to providing high-quality magnetic pump solutions tailored to your specific needs.

    When it comes to handling thick, viscous, and abrasive fluids in industrial processes, the terms "sludge pump" and "slurry pump" are often mentioned. While they might seem similar at first glance, these pumps are designed for different purposes and applications. Understanding the differences between a sludge pump and a slurry pump is crucial for selecting the right equipment for your specific needs.

    1.What is a Sludge Pump?

    A sludge pump is specifically designed to handle viscous fluids that contain a high concentration of solid particles, typically found in wastewater treatment plants, mining operations, and industrial waste processing. The term "sludge" refers to a semi-solid mixture, usually comprising water, solid particles, and other substances like oils or chemicals.

    Sludge pumps are characterized by their ability to move thick, heavy materials without clogging. They often feature a wide impeller clearance, which helps to prevent blockages caused by the dense consistency of the sludge. The pump's design typically includes a positive displacement mechanism, allowing it to generate high pressure and efficiently move sludge through pipelines.

    2.What is a Slurry Pump?

    On the other hand, a slurry pump is designed to handle mixtures of water and solid particles that are more fluid and less viscous than sludge. The term "slurry" refers to a mixture of solids suspended in a liquid, commonly encountered in mining, dredging, and mineral processing industries. The solid content in slurry can range from fine particles, like sand, to larger, abrasive materials like rocks or ores.

    Slurry pumps are built to withstand the abrasive nature of the materials they handle. They typically feature robust construction materials, such as high-chrome alloys or rubber linings, to resist wear and tear. Unlike sludge pumps, slurry pumps often use centrifugal force to move the mixture, which allows them to handle higher flow rates and less viscous mixtures efficiently.

    3.Key Differences

    3.1 Viscosity and Solid Content:

    Sludge Pumps: Designed for high-viscosity fluids with a higher concentration of solids.

    Slurry Pumps: Designed for more fluid mixtures with lower viscosity and a range of solid particle sizes.

    3.2 Pump Mechanism:

    Sludge Pumps: Often use positive displacement mechanisms to handle dense, semi-solid materials.

    Slurry Pumps: Typically use centrifugal force to handle a mix of liquids and solid particles.

    3.3 Application Areas:

    Sludge Pumps: Commonly used in wastewater treatment, industrial waste management, and processes involving thick, semi-solid mixtures.

    Slurry Pumps: Used in mining, dredging, and mineral processing, where the fluidity of the mixture is higher, and the focus is on moving abrasive materials.

    4.Design Considerations:

    Sludge Pumps: Focus on preventing blockages with wider clearances and robust, clog-resistant designs.

    Slurry Pumps: Emphasize abrasion resistance and the ability to handle high flow rates.

    5.Which Pump is Right for You?

    The choice between a sludge pump and a slurry pump depends on the specific requirements of your operation. If you're dealing with thick, viscous mixtures with a high solid content, a sludge pump would be the ideal choice. However, if your operation involves moving a more fluid mixture with abrasive particles, a slurry pump would be more suitable.

    6.Conclusion

    Understanding the differences between sludge pumps and slurry pumps ensures that you select the most efficient and cost-effective solution for your needs. Whether in wastewater treatment or mining, choosing the right pump will not only improve operational efficiency but also extend the lifespan of your equipment.

In the modern industrial landscape, environmental concerns have led to the development of various technologies aimed at reducing harmful emissions. One such technology is flue gas desulfurization (FGD), which is essential in minimizing sulfur dioxide (SO₂) emissions from power plants and industrial facilities. At the heart of this process lies the desulfurization circulation pump, a crucial component that ensures the effective removal of sulfur compounds from exhaust gases.

The Role of Desulfurization Circulation Pumps

Desulfurization circulation pumps are specifically designed to handle the transport of limestone or lime slurry, which is used in FGD systems. These pumps are vital for circulating the slurry through the system, allowing for continuous contact between the desulfurizing agent and the flue gas. This interaction facilitates the chemical reaction that converts sulfur dioxide into solid compounds, which can then be removed from the gas stream.

Working Principle

The working principle of a desulfurization circulation pump involves several key steps:

1. Slurry Preparation: The process begins with the preparation of a limestone or lime slurry, which serves as the desulfurizing agent. This slurry is typically mixed with water to create a homogeneous suspension.

2. Pumping the Slurry: The desulfurization circulation pump then transports this slurry to the absorber tower, where the flue gas enters. The pump is designed to handle the abrasive nature of the slurry, ensuring that it can operate continuously without failure.

3. Chemical Reaction: Inside the absorber tower, the sulfur dioxide in the flue gas reacts with the calcium carbonate (CaCO₃) present in the slurry. This reaction produces calcium sulfite (CaSO₃), which is a solid byproduct that can be further processed or disposed of.

4. Recirculation: After the chemical reaction, the remaining slurry is recirculated back to the pump for continued use. This closed-loop system enhances efficiency and minimizes waste, as the slurry can be reused multiple times.

Key Features and Benefits

Desulfurization circulation pumps are engineered to meet specific operational requirements, including:

• Corrosion Resistance: Given the corrosive nature of the materials handled, these pumps are typically made from corrosion-resistant materials such as stainless steel or specialized alloys. This ensures durability and longevity, even under harsh operating conditions.

• High Efficiency: These pumps are designed to operate efficiently, minimizing energy consumption while maximizing flow rates. Their ability to handle varying flow and pressure conditions is crucial for maintaining the stability of the desulfurization process.

• Reliability: With continuous operation being essential in FGD systems, desulfurization circulation pumps are built for reliability. Features such as mechanical seals and robust bearings help reduce the risk of leaks and failures.

Applications

Desulfurization circulation pumps are widely used in various industries, including:

• Power Generation: In coal-fired power plants, these pumps play a critical role in reducing SO₂ emissions, ensuring compliance with environmental regulations.

• Chemical Processing: Industries that produce or utilize sulfur compounds also rely on these pumps to mitigate emissions and enhance process efficiency.

• Cement Production: Cement plants often use desulfurization systems to control emissions from the combustion of fuels that contain sulfur, further emphasizing the importance of reliable circulation pumps.

In conclusion, desulfurization circulation pumps are essential components of flue gas desulfurization systems, playing a pivotal role in reducing sulfur dioxide emissions and promoting environmental sustainability. Their robust design, high efficiency, and ability to handle corrosive materials make them indispensable in various industries. As environmental regulations continue to tighten, the importance of effective desulfurization systems and the pumps that power them will only grow. Investing in high-quality desulfurization circulation pumps not only ensures compliance but also contributes to a cleaner, more sustainable future.

    Magnetic pumps are widely used in industries such as chemicals, pharmaceuticals, and environmental protection due to their unique design that effectively prevents medium leakage. However, there is a significant operational limitation with magnetic pumps—they cannot run dry. So, why is it that magnetic pumps can't operate without liquid? This article will provide a detailed explanation.

    Working Principle of Magnetic Pumps

    To understand why magnetic pumps cannot run dry, it's essential to grasp their working principle. Magnetic pumps transfer power through magnetic coupling. Typically, the driving end and the driven end of the pump are connected via a magnetic coupling, and the impeller inside the pump rotates under the influence of this magnetic force, thereby propelling the medium to flow.

    Unlike traditional mechanical seal pumps, magnetic pumps have a completely sealed pump chamber with no shaft seals, which eliminates the possibility of leakage. This seal-free design makes magnetic pumps particularly suitable for applications that require high levels of sealing, especially when handling toxic, flammable, or corrosive media.

    The Dangers of Running Dry

    When a magnetic pump operates in a dry condition, meaning the pump chamber is devoid of any liquid medium, the magnetic coupling and other components inside the pump continue to rotate at high speed. This can lead to several problems:

    1.Overheating:

    Under normal operation, the liquid medium inside the pump acts as a lubricant and coolant. Without liquid, friction between components generates a significant amount of heat. Since the pump is designed to be completely sealed, the heat cannot dissipate quickly, potentially damaging the magnetic coupling and other critical components due to the rapid increase in temperature.

    2.Damage to the Magnetic Coupling:

When running dry, the magnetic coupling may overheat, leading to demagnetization or damage, causing it to lose its ability to couple magnetically. This not only results in the loss of the pump's drive function but also can lead to overall pump failure, which can be costly to repair or replace.

    3.Wear and Tear on the Impeller and Bearings:

    In a dry-running state, there is no liquid medium to reduce friction, causing direct contact between the impeller and bearings, leading to significant wear and tear. This drastically shortens the pump's lifespan and can even result in sudden pump failure.

    How to Prevent Dry Running?

    To ensure the safe and efficient operation of a magnetic pump, it's crucial to avoid dry running. Here are some common preventive measures:

    1.Install a Liquid Level Detection Device:

    A liquid level detection device can be installed in the pump's inlet pipe or storage tank. If the liquid level is too low, the device automatically stops the pump to prevent dry running.

    2.Set Up Pump Protection Devices:

    By installing pump protection devices, such as temperature sensors or flow sensors, the pump can automatically shut down if the internal temperature becomes abnormal or if the flow is insufficient, thereby protecting the pump from damage.

    3.Regular Inspection and Maintenance:

    Regularly inspect the pump's operating conditions to ensure there is always sufficient medium inside the pump, and conduct timely maintenance to prevent dry running due to worn-out components.

    Conclusion

    The primary reason magnetic pumps cannot run dry is that they rely on the liquid medium for cooling and lubrication. Without the medium, the pump's components can quickly overheat and wear out, potentially causing severe damage to the pump. Therefore, understanding and implementing preventive measures to ensure that magnetic pumps operate under the right conditions is key to extending equipment lifespan and ensuring safe production.

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EPE (Expanded Polyethylene) foamed pipes have gained significant popularity in recent years due to their versatility and excellent insulation properties. With advancements in technology, the introduction of EPE foamed pipe extruders has revolutionized the foam production industry, offering enhanced efficiency and improved product quality.

What is an EPE Foam Extrusion Machine?

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The EPE foam extrusion machine is a state-of-the-art equipment designed to manufacture EPE foam sheets and tubes. It utilizes an extrusion process that transforms raw materials into the desired foam shape.

How Does an EPE Foam Extrusion Machine Work?

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The EPE foam extrusion machine works by melting and mixing the raw materials, usually polyethylene resin and other additives, in an extruder. The molten material is then passed through a die, where it undergoes expansion and solidification to form the foam.

What are the Key Features of an EPE Foam Extrusion Machine?

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The EPE foam extrusion machine boasts several key features that contribute to its superior performance and efficiency. These include precision temperature control, adjustable foam thickness, and automatic cutting capabilities.

Introducing the EPE Foam Machine: a Game-Changer in Foam Production

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The EPE foam machine is a revolutionary piece of equipment that has transformed the foam production industry. Its automated processes and precise control mechanisms ensure consistent and high-quality foam output.

How Does an EPE Foam Machine Enhance Production Efficiency?

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The EPE foam machine streamlines the manufacturing process by automating material feeding, mixing, extrusion, and cutting. This reduces labor costs, minimizes production time, and increases output.

The EPE Foam Making Machine: Crafting Foam with Unmatched Versatility

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The EPE foam making machine offers unparalleled versatility, allowing manufacturers to produce a wide range of foam products, including sheets, tubes, and profiles, catering to various industry demands.

What Sets the EPE Foam Making Machine Apart from Others?

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The EPE foam making machine stands out due to its ability to create foam products with consistent density, uniform thickness, and excellent insulation properties, ensuring optimal performance.

Foam Pipe Extrusion Machine: Expanding Horizons in Foam Applications

(10 words)

The foam pipe extrusion machine facilitates the production of EPE foam pipes, which find applications in industries such as plumbing, HVAC, and automotive, thanks to their lightweight and insulating properties.

How Can Foam Pipe Extrusion Machines Benefit Manufacturers?

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Foam pipe extrusion machines offer manufacturers the advantage of producing foam pipes in various sizes and lengths, meeting specific requirements of different applications while maintaining quality standards.

In conclusion, the introduction of EPE foamed pipe extruders, EPE foam extrusion machines, EPE foam machines, and EPE foam making machines has revolutionized the foam production industry. These advanced machines not only improve efficiency and productivity but also enable manufacturers to create foam products with superior quality, versatility, and insulation properties. With the increasing demand for foam in various industries, these machines are set to play a crucial role in meeting market needs and driving innovation.

In the dynamic landscape of the automotive industry, precision and innovation are paramount. Among the many technological advancements shaping this sector, Computer Numerical Control (CNC) machining stands out as a game-changer, especially when it comes to manufacturing high-quality automotive parts, Not only does it embody the essence of modern manufacturing, but it also underscores the strength and capabilities of factories offering this specialized service. Let's delve into the unique advantages of CNC mechanical parts processing in the realm of automotive components and explore why it's a testament to a factory's prowess.

1.Mold-Free Manufacturing: A Cost-Effective Approach

One of the most appealing aspects of CNC machining for automotive parts is the elimination of mold fees. Traditional manufacturing methods often require expensive molds or dies for mass production, which can significantly increase upfront costs. With CNC machining, however, parts are cut directly from solid blocks of material such as aluminum, steel, or plastics using computer-controlled cutting tools. This means no need for expensive molds, allowing for faster product development cycles and cost savings that can be passed on to customers.

2.Unparalleled Precision and Repeatability

Precision is paramount in the automotive industry, where even the slightest deviation can compromise the safety and performance of vehicles, CNC machines operate with incredible accuracy, ensuring consistent quality and tight tolerances across every part produced. The use of advanced software and sophisticated sensors guarantees that each part is crafted to precise specifications, ensuring repeatability from the first piece to the last. This level of precision is crucial for components like engine blocks, transmission gears, and brake systems where even minor deviations can have severe consequences.

3.Boosted Productivity and Efficiency

In today's fast-paced manufacturing environment, time is money. CNC machines are renowned for their high production rates, allowing factories to churn out automotive parts quickly and efficiently. Automated processes minimize human intervention, reducing the risk of errors and speeding up production cycles. Furthermore, CNC machines can run continuously with minimal downtime, further enhancing overall productivity, This increased efficiency translates into faster time-to-market and the ability to meet the demanding schedules of the automotive industry.

4. Conquering Complexity: Where Other Methods Fail

Automotive design is becoming increasingly sophisticated, with complex geometries and intricate details that challenge traditional manufacturing methods, CNC machining excels in these scenarios, offering the flexibility to create parts with complex shapes and features that would be difficult or impossible to produce using other techniques, From intricate cooling channels within engine blocks to the delicate contours of aerodynamic body panels, CNC machines can precision-cut even the most complex geometries with ease. Moreover, they can access and machine hidden or inaccessible areas, enabling the creation of parts with unparalleled functionality and design freedom.

CNC machining for automotive components represents the pinnacle of modern manufacturing, marrying precision, efficiency, and versatility, By eliminating mold fees, ensuring repeatable high-quality production, boosting productivity, and tacking complex geometries with ease, CNC machining underscores the strength and innovation of factories offering this service. As the automotive industry continues to evolve, the demand for CNC-machined parts will only grow, making it more essential than ever for factories to invest in this technology and the skilled technicians who operate it.

Nanjing Pege’s “PEIKE” brand Gravimetric Loss-in-weight feeder

Introduction

Nanjing Pege Techno Machine Co., Ltd is specialized in designing and producing the low in weight feeders including single and twin screws loss in weight feeder, liquid gravimetric feeder, micro scale feeder, vibratory feeder, Paddle massaged flexible PUR hopper feeder and multi-ingredients compounding feeder.

Our products are successfully applied in various dosing and blending(mixing) field, like chemistry, engineering plastics, cable, food processing, pharmaceutical and building material industries.

Our head company is constantly dedicated to providing the solutions of weighing, feeding, transmission, packing and automatic stacking, to provide the professional products and service for the customer worldwide both in solid and liquid product manufacturing field. To strengthen our competence and leading position in the gravimetric weighing field, we integrated our profound technology and talents to better improve our design and manufacturing competence.

PRODUCTS

Twin screw loss-in-weight feeder 

Application material

Resin Granules, Resin Powder, Calcium carbonate, French Chalk, Tio2, Carbon Black

Features

1. Cantilever type weighing frame ensure lower gravity(barycenter) center, weaker vibration and anti-interference performance of the whole feeder.

2. Vertical U-shaped hopper with mirror-like inner wall and without corner enclosure can ensure no bridge of the materials

3. Stainless Steel bellow sensor has the feature of only slight deformation after long time use, and high precision with less signal drift, and is durable for bad environment use

4. 485 Digital transmission of weighing data has the feature of no attenuation and anti-interference during the period of data transmission.

5. Feeding and stirring is operated separately, using independent agitation motor and stirring speed can be adjusted according to the demand.

6. No agitation motor on the top of the hopper will surely reduce the vibration during the operation, then this design will achieve high stability and high accuracy.

Vibrating Tray Loss-in-weight Feeder

Application material

Flack, Glass Fiber, Cylindrical Material, Irregular Shape Material from Recovery

Features

1. Cantilever type weighing frame ensure lower gravity(barycenter) center, weaker vibration and anti-interference performance of the whole feeder.

2. Double weighing sensors weight platform ensure good balance degree and no unbalanced loading

3. 485 Digital transmission of weighing data has the feature of no attenuation and anti-interference during the period of data transmission

4. Vibration type feeding has no damage on the material itself.

5. Electrical magnetic vibration type feeding ensures tiny machine wear and tear and nearly none of maintenance parts are needed

Applications Material

Liquid Additive DCP Silane Maleic Anhydride

Features

1.       Cantilever type weighing frame ensure lower gravity(barycenter) center, weaker

vibration and anti-interference performance of the whole feeder.

2.       Stainless Steel bellow sensor has the feature of only slight deformation after long time use, and high precision with less signal drift, and is durable for bad environment use.

3.       485 Digital transmission of weighing data has the feature of no attenuation and anti- interference during the period of data transmission.

4.      Hydraulic Diaphragm Pump, Plunger Pump, Gear Pump are selectable.

5.       Equipped with complete isolated SUS304 bellow spring damping type spray gun, has the feature of keeping pressure stable within 48 hours.

6.      Explosion proof, heat preservation by water or electricity are selectable

Flexible Paddle-Massaged PUR Hopper Feeder

Application material

Resin Particles, Resin powder, Calcium Carbonate,

Talcum powder, Titanium White Powder

Carbon Black, Flame Retardant Antioxidant

Features

■Suitable for all-purpose bulk material, especially for the powder material with humidity and low flowability.

■The cantilever sling-type weighing scale supports the storage hopper, which has the characteristics of vibration reduction and anti-level interference. This design can effectively shield the non-weight value interference from the vibrator and measure the flow of the system more accurately.

■No bridging thanks to straight walled hopper.

■Gentle feed capability by paddling flexible hopper with external agitation.

■Easy to disassemble and to clean, convenient for maintenance.

■No direct touch between stirring unit and material ensures no damage on the materials.

■Improve material flowability, optimize dynamic loadings of the screws, to ensure stable and accurate flow rate.

■Arch breaker inside of the machine can ensure efficient weighing feeding even the humidity rate in the materials reaches to 20%

CONTROL SYSTEM FEATURES

1.  Self-learning: The equipment can automatically identify the bulk density and fluidity of the material during the pre-operation, self-tuning during operation and continuously optimizing the best P (proportion) and I (integral) values to ensure rapid response of the system operation

2. Anti-interference: Automatically identify the intensity and duration of the interference and adopt emergency backup procedures to deal with it urgently to ensure the stability and accuracy of the system.

3.       The software is independently developed. After the product leaves the factory, the original program will be burned on the Micro SD card and given to customers randomly. Hardware adjustment.

4.      The mainstream communication formats in the market can be customized according to customer needs, such as Modbus, PPI, MPI, Profibus, Ethernet and other communication formats, so that customers can access the factory's main control system.

5.       The weighing signal transmitter is a customized product with a resolution of one hundred thousandth. The transmitter is installed on the weighing frame and is about one meter away from the weighing sensor. The signal transmission uses RS485 twisted shielded wire and digital transmission. Eliminate signal attenuation and interference

6.      The controller uses Siemens SMART series PLC, each scale uses a CPU, and each scale (each CPU) is connected in parallel by Ethernet.

7.       The RS485 serial port of the Siemens controller communicates with the weighing transmitter, installs an RS485 serial port to communicate with the inverter or servo controller, and the built-in Ethernet port communicates with the touch screen or host computer through the switch. Digital communication throughout the network, high speed, efficiency and stability

8.      The system can display and record operating parameters and can be installed with industrial control computer systems such as domestic Kingview, Siemens Wincc. At the same time, a scanning gun can be installed for barcode parameter reading, process flow recording, and quality traceability.

FAQs on Peike loss-in-weight feeders

1.     What kinds of materials can be used for loss in weight feeding?

Resin granules, flack, flocculus, powder and pellets blendings

Resin Particles, Resin Powder, Calcium Carbonate, Glass fibers

Talcum Powder, Titanium White Powder Carbon Black, Flame Retardant Antioxidant

Flack, Glass Fiber, Cylindrical Material, Irregular Shape Material from Recovery

Liquid Additive, DCP Silane, Maleic Anhydride

2.    What kinds of feeders are included in the loss in weight feeder series?

Our feeding product range includes micro loss in weight feeder, single screw feeder, twin screw feeder, vibratory tray feeder, Paddle massaged Polyurethane Hoppe feeder and liquid loss in weight feeder.

PPS PET and PA parts nitrogen deburring machine

Cryogenic deflashing and deburring system is a process that employs cryogenic temperatures to remove flash on manufactured workpieces made of a wide range of plastics (and other materials) both thermoset and thermoplastic. Some examples of materials used include nylon, HD-PE, PPS, PET, polycarbonate, polypropylene, polyurethane, liquid crystal polymer, PA+GF, PC+GF, PEEK, and Acetal. Manufactured parts that have been successfully deburred include those made through injection molding, compression molding and extrusion molding.

 What is “Flash.”

“Flash” is a raised edge attached to the workpiece. It is an unwanted piece of material and requires removal. Many medical devices and other precision components are included in deflashing applications. Deburring accounts for a significant amount of the costs of manufacturing. The cryogenic deflashing process causes the flash or burr to become stiff or brittle and break away leaving a clean edge. There are three types of burrs that can be formed in manufacturing operations and can be classified by the physical manner of formation: Poisson burr, roll-over burr and Tear burr.

■Poisson Burr

A Poisson burr results from the tendency of a material to bulge at the side when compressed until permanent deformation of the plastic occurs.

■Roll-over Burr

A roll-over burr is a burr that is more of a chip that is bent rather that sheared. The resulting burr is usually comparatively larger. The process even removes recessed burrs in blind and through holes.

■Tear Burr

A Tear burr is the result of material tearing from a work piece rather than shearing from it.

In the cryogenic deflashing process, parts are loaded into a basket. A cryogem such as liquid nitrogen is used to cool the workpieces. After they are cooled they are tumbled with pellets- often a polycarbonate media ranging in size from 0.006 to 0.080 inches (0.15mm to 2.03 mm.) Sometimes cryogenic deflashing does not rely on a blasting action but rather on the tumbling of the parts to remove flash from the outer edges. The process can even remove recessed burrs in blind and through holes. The process does not affect the surface finish or the geometry of the part. Edges are maintained without rounding or removal of extra material and only the unwanted burrs are removed.

Cryogenic Deflashing Systems Advantages

Cryogenic deflashing equipements provides advantages over manual deflashing.

■The process maintains part integrity and critical tolerances. As it is a bath process the price per piece is far less as many more parts can be processed at the same time.

■Cryogenic deflashing is non-abrasive.

■As the process is computer controlled, the human operator variable is removed from the process.

■Mold life is extended by the cryogenic deflashing process. Instead of making a new mold a company may choose to deburr a manufactured part cryogenically and achieve the same product quality very much as they would with a new mold for a period of time until maintenance is performed.

Pege’s Automatic Nitrogen Trimming Machine’s Features

■Greater productivity

■Large output in short time

■Better and consistent Finish

■Low Labour dependence

■Space Saving

■Low Media Consumption

■Wide variety of rubber compounds - NR to Silicon Rubber

■Low Nitrogen Usage

■Simple Electrical Controls

■High Efficiency Blast Wheel

■Safety Interlocks

■Simple and Very Low maintenance

PU TPU TPE parts cryogenic deburring machine

Cryogenic Deflashing or cryogenic deburring is available for all molded parts, including those made of plastics, polymers, nylons, rubbers, silicone rubber, polyurethane, neoprene, liquid crystal polymer, urethane, viton, polycarbonate, PTFE, PPS, delrin, polypropylene, EPDM, nitrile, butyl, DAP, ABS, PEEK, Acetal and aluminum zinc die cast and precision elastomer parts.

Cryogenic Deflashing Works On Most Molded Parts

The computer-controlled process generates repeatable and reliable results. Many medical devices and other high value precision molded components are included in our vast array of successful deflashing applications. We have processed parts manufactured through injection molding, compression molding and extrusion molding.

Our cryogenic deflashing machine offers a fast and repeatable process to remove flash from plastic parts. Through freezing, tumbling and blasting polycarbonate media at your injection molded plastic parts, we are able to remove residual mold flash time and time again.

The Cryogenic Deflashing process was originally created to remove mold flash from rubber parts. We are able to deflash rubber parts that are injection molded, extrusion molded and compression molded. We have processed parts made of various durometers. We typically deflash rubber parts made of EPDM, neoprene, Viton, Buna-N, nitrile, natural gum, SBR, butyl, and other elastomers.

Our Cryogenic Deflashing machine is often used by molders who work with silicone rubber. Silicone rubber, by its nature, is very viscous causing it to flash during the molding process. The Pege’s Deflashing machine removes mold flash from silicone rubber parts. We deflash parts made of liquid silicone rubber and even special blends of silicone rubber that include conductive fillers such as silver, graphite, nickel.

Rather than invest in an expensive new or repaired mold tool, customers can elect to extend the functional life of their mold tool by adding the additional step of deflashing, to finish the part and remove any residual flash leftover after molding operations. It is economical to pay only a slight premium per part than to invest in a new molding tool that has a limited production life.

Cryogenic Deflashing is a fast and efficient process that provides complete removal of mold flash without affecting the surface finish. Therefore, it is a safe,clean and cost-effective alternative to traditional methods.

Parts are placed in a chamber, cooled, tumbled and impacted with plastic polycarbonate media. Mold flash is removed quickly and cleanly. No dust or residue remains after deflashing.

Cryogenic Deflashing is more cost-effective than labor-intensive hand deflashing by a significant margin. The cost to process parts can range from less than .01 cent to several dollars apiece. General rule of thumb: cost is between 10% and 20% of the value of the part, although each part must be considered on its individual

Nanjing Pegedeflashing’s Cryogenic Deburring Machine’s ADVANTAGES

Greater productivity

Large output in short time

Better and consistent Finish

Low Labour dependence

Space Saving

Low Media Consumption

Wide variety of rubber compounds - NR to Silicon Rubber

Low Nitrogen Usage

Simple Electrical Controls

High Efficiency Blast Wheel

Safety Interlocks

Simple and Very Low maintenance

Our factory and Workshop of cryogenic deflashing systems

Nanjing Pege Techno Machine Co.,Ltd production plant is located in the No.9 Ankang road, Guli Industrial Zone, Jiangning District, Nanjing.
We have professional production workers and process, are determine to produce best product for the customer all over the world

Packing and Transportation of cryogeic deflashing equipments

The machine produced by Nanjing Pege is well packed by plywood carton suitable for long distance sea transportation to ensure machine safety and performance.

We can help customer to arrange the transportation by the terms of FOB, CIF with land or sea transportation methods according to the request from the