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2025-04-28 The main reasons for melt pump leakage
The main causes of melt pump leakage include worn or damaged seals, improper installation, excessive pressure, influence of melt properties, pump body wear and thermal deformation. Specifically: 1, seal wear or damage: melt pumps commonly used sealing forms such as mechanical seals and packing seals in long-term operation will be worn due to friction, resulting in seal failure. In addition, seals in high temperature, highly corrosive environment will be aging, accelerating the leakage. 2, improper installation: the installation process if the seals are not installed in place, such as static an
2025-04-25 Specific applications of melt pumps in silicone extrusion
Stabilizing the flow and pressure of silicone melt is the basis of high quality production; high temperature and wear-resistant material casting equipment lasting and reliable, melt pumps with precise control and efficient sharing, enhance the uniformity of extrusion, reduce the failure rate, and become an indispensable core of the silicone products production line. Stabilizing melt flow and pressure: The melt pump can stabilize and accurately control the flow and pressure of the silicone melt to ensure the stability and continuity of the extrusion process, which is the basis for the high-qual
2025-04-14 Application and Advantages of High-Temperature Melt Delivery Pumps in Extrusion Molding
High-temperature melt delivery pumps play a crucial role in the extrusion molding process of industries such as plastics, resins, rubber, and chemical fiber products. The following is a detailed analysis of their functions: Precise Delivery High-temperature melt delivery pumps employ sophisticated control systems and mechanical structures to accurately control and deliver molten materials. This precision ensures the stability of flow and pressure during the extrusion molding process, thereby enhancing product quality and consistency. Stable Flow The gear design of the delivery pump is key to a
2025-04-09 Melt pumps play a crucial role in the production of cable filler ropes
Melt pumps for cable filler ropes serve a key function in the production process of cable filler ropes, with their main roles and features as follows: I. Roles Pressurization and Stable Flow Conveyance: Melt pumps can provide the necessary pressurization effect for polymer melts, ensuring the stability of the melt during conveyance and preventing fluctuations or degradation due to pressure variations or uneven temperatures. The output flow of the melt pump is strictly proportional to its rotational speed, enabling near-linear output and providing a stable melt pressure to the cable filler rope
2025-04-02 Overview of kettle melt discharge pump characteristics and applications
The reaction kettle melt pump is especially suitable for high temperature, high viscosity polymer melt reaction conveying which requires high output pressure, such as resin, chemical fiber and other industries. The following is a detailed description of its working principle and characteristics: First, the reaction kettle melt discharge pump working principl The working principle of reaction kettle melt discharge pump is based on the design of positive displacement pump, through the precision meshing of the master and slave gears, to realize the change of working volume, so as to complete the
2025-03-28 Structural Optimization of PVC-Specific Melt Pumps
To address PVCs thermosensitivity and susceptibility to carbonization/decomposition during extrusion, the design of specialized melt pumps achieves high-efficiency adaptation through the following structural optimizations: Flared Inlet Channel Function: Expands the inlet diameter to reduce material entry resistance and minimize localized overheating caused by pressure fluctuations or unstable flow. Advantage: Prevents material accumulation at the inlet, shortens residence time, and reduces thermal degradation risks. Optimized Internal Flow Channel and Gear Structure Channel Design: Employs smo
2025-03-27 Specialized Melt Pump for Extruders: A Critical Equipment in Polymer Industry
In the polymer industry, extruders are the key equipment for producing various plastic products, rubber products, and chemical fiber products. The specialized melt pump for extruders is a vital component of the extruder, responsible for conveying high-viscosity polymer melts from the extruders screw to the mold or the next process stage. The working principle of the melt pump is to transport the melt from a low-pressure area to a high-pressure area through precise gear engagement, thereby achieving pressure boosting and stable conveyance of the melt. This type of pump is characterized by high
2025-03-25 Function and advantages of film extrusion melt pump
The thin film extrusion melt pump is mainly used for the transportation, pressurization, and metering of high-temperature and high viscosity polymer melts, and is a key equipment in the thin film extrusion process. Its function is to pressurize and stabilize the high-temperature plastic melt from the extruder, and then send the flow rate steadily into the extruder head, ensuring the continuity and stability of the film extrusion process. Its advantages are mainly reflected in the following aspects: 1. Improving film size accuracy: Melt pumps can effectively reduce material output instability c
2025-03-24 Enhance Efficiency and Precision in PU Underwater Pellet Extrusion with Advanced Melt Metering Pumps
In the demanding world of polyurethane (PU) underwater pellet extrusion, achieving consistent product quality, high throughput, and minimal downtime is non-negotiable. Central to this process is the melt metering pumpa critical component that ensures precise polymer flow control, uniform pellet formation, and optimal energy efficiency. For manufacturers seeking to elevate their production lines, heres why investing in cutting-edge melt metering pumps is a game-changer. Why Melt Metering Pumps Are Indispensable in PU Underwater Pelletizing Consistent Material Delivery: PU materials are sensitiv
2025-03-21 Melt pump for extrusion granulation production line
In an extrusion granulation production line system, the extruder and melt pump work in conjunction with a variety of materials and components to ensure efficient and high-quality production. such as PET, PP, PE, PVC, or other thermoplastics, which are melted and processed into granules. The extruder and melt pump within the extrusion granulation production line system are designed to work in tandem, ensuring a seamless and efficient production process. The extruder is responsible for melting and homogenizing the polymer, while the melt pump precisely meters and delivers the molten material at
