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2025-09-16 Polymer melt pump installation steps
Preparation Before Installing the Melt Pump Before installing the melt pump, a series of preparatory steps must be completed. First, ensure the installation site is clean, dry, and well-ventilated. Simultaneously, verify that the foundation for the melt pump is level and secure to prevent vibration or displacement during equipment operation. Foundation Installation: 1. Position the foundation at the designated location according to the design drawings and adjust its level. Ensure the contact surface between the foundation and the ground is free of debris, and that sufficient space surrounds th
2025-09-08 Polymer melt pump gear
The selection of melt pump gear materials hinges on the application scenario and required performance. Multiple materials are available for melt pump gears. First, nitrided steel offers excellent wear resistance, making it suitable for high-pressure and abrasive applications. Tool steel provides both high hardness and wear resistance, ideal for high-strength gears. Stainless steel delivers superior corrosion resistance, suitable for corrosive media. Corrosion-resistant alloys like Hastelloy are appropriate for extreme corrosive environments. Special alloys like titanium alloys are suitable for
2025-09-04 Melt pumps for ETFE agricultural greenhouse film extrusion lines
The central role of melt pumps in ETFE film extrusion ETFE (ethylene tetrafluoroethylene copolymer) films are widely used as agricultural greenhouse covering materials due to their weather resistance, light transmission (up to 90% or more) and self-cleaning properties. In the extrusion line, the melt pump, as the key power equipment, mainly assumes the following functions: Stable conveying and pressurization ETFE melt has high viscosity (viscosity range 1～40,000Pa-s), melt pump forms stable working volume through gear meshing to pressurize and convey high temperature melt from the extruder t
2025-09-01 BOPP film extrusion melt pump
The melt pump serves as a core auxiliary device in BOPP (biaxially oriented polypropylene) film extrusion production lines, playing a pivotal role across critical functions including pressure control, quality enhancement, energy consumption optimization, and equipment protection. The following provides a detailed analysis: I. Core Functionality: Pressure Stabilization and Efficiency Enhancement, Fortifying Quality Foundations Precise Pressure Stabilization and Flow Control BOPP film demands extremely high thickness uniformity (thickness deviation must be controlled within 1%). During extruder
2025-08-15 Do you know about melt pipeline booster pumps?
Melt pipeline booster pumps are special industrial pumps designed for high-viscosity melt transportation systems. They are mainly used in polymer processing, chemical fiber spinning, plastic extrusion, and other fields. Their core function is to overcome the flow resistance of melts in pipelines through mechanical boosting, ensuring stable transportation of melts under high-temperature and high-pressure conditions. Based on structural differences, they can be categorized into three main types: gear pumps, screw pumps, and piston pumps. Among these, gear pumps are the mainstream choice due to t
2025-08-07 Plastic pipe extruder melt pump
Pipe extruder melt pump is a high temperature and high viscosity polymer melt conveying, pressurizing and metering equipment specially designed for pipe production line, its core functions, technical advantages and typical application scenarios are as follows: I. Core function and working principle Positive displacement conveying Through gear meshing to form a closed volume chamber, the melt is forced to be pressed and sent to the outlet, and the flow rate is strictly proportional to the pump speed to ensure conveying stability. For example, the Bart ZB-C series adopts a high-precision gear cl
2025-08-01 Do you know about melt pump gears?
The core function of melt pump gears Melt pump gears are the core transmission components of melt pumps, responsible for converting motor power into high-precision, stable melt delivery power. Their special tooth profile design (such as involute or arc teeth) ensures continuous extrusion of melt under high pressure (typically 1050 MPa) with a pulsation rate below 1%, preventing polymer degradation. The gear material is typically nitrided steel or tool steel (such as 38CrMoAlA), with a surface hardness of HRC60 or higher to resist melt corrosion and mechanical wear. Precision Fit and Flow Contr
2025-07-19 What determines the rotational speed of a melt gear pump?
Polymer melt gear pumps belong to the positive displacement pump, the flow rate and rotational speed is nearly linear proportional relationship, the choice of pump speed determines the melt gear pump specifications, is an important selection parameters. The main factors that determine the rotational speed of the melt gear pump are: 1, the viscosity of the material, the higher the viscosity of the material, the lower the speed. High viscosity melt needs more driving force to push, if the speed is too high, the motor may be overloaded, and will increase the wear and tear of gears and pump body.
2025-07-15 Plastic sheet extruder melt pump
Sheet extruder melt pump can precisely regulate the melt flow and pressure to ensure the thickness uniformity and dimensional stability of the sheet, avoiding the thickness deviation caused by the flow fluctuation. It can improve the output stability of the extrusion system, reduce the material shear heat, reduce the degradation of polymer materials, and is suitable for a variety of high-viscosity heat-sensitive raw materials. The equipment has wear-resistant and corrosion-resistant characteristics, which can extend the service life, and reduce the waste of raw materials through accurate dosag
2025-07-03 PVDF fluoroplastic extruder melt pump features
Compact and precise structure: the structural design of melt pumps is usually compact and occupies less space, which is convenient for installation and layout in the production line. At the same time, its high manufacturing precision ensures the wear resistance and durability of the pump body, which can operate stably for a long time under the harsh environment of high temperature and high pressure. Efficient and stable conveying: The melt pump can convey PVDF fluoroplastic melt efficiently and stably, ensuring stable flow and pressure during the extrusion process. This helps to reduce product
