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2024-11-01 What are the disadvantages of melt transfer pumps?
The melt conveying pump (also known as a melt pump or melt booster gear pump ) is widely used in the extrusion molding of plastics, resins, rubbers, chemical fibers, and other products, especially excelling in situations requiring the reaction, conveyance, and pressurization of polymer melts with high output pressure, high temperature, and high viscosity. However, the melt conveying pump also has some drawbacks, as detailed below: Material Requirements: The application of the melt conveying pump is limited when processing plastics containing fillers or special modifiers. It has strict requirem
2024-10-29 Melt Pump for Plastic Broom Production Lines
Melt pumps play a crucial role in plastic extrusion systems, and when applied to plastic broom production lines, they can significantly enhance production efficiency and product quality. Below is a detailed analysis of the application of melt pumps in plastic broom production lines: I. The Role of Melt Pumps in Plastic Broom Production Lines Enhancing Product Quality: Melt pumps provide stable melt pressure and flow rate, ensuring uniformity and consistency of the plastic filaments during the extrusion process, reducing waste rates, and improving product quality. Controlling Flow Rate: By adju
2024-10-28 What is the role of the metering pump in a PP drawing extrusion production line?
The mel metering pump of a drawing machine plays a crucial role in the drawing process, mainly including the following aspects: Flow Control The metering pump of a drawing machine can control the flow rate of the melt with high precision. During the drawing process, the melt needs to pass through the spinneret plate at a stable and accurate flow rate to ensure that the formed filaments have a uniform diameter. By adjusting its output flow rate, the metering pump can adapt to the production requirements of different specifications of filaments. For example, when producing high-end fibers with f
2024-10-18 Advantages and characteristics of fluoroplastic extrusion melt pump
Fluoroplastic melt pump is corrosion-resistant, high-temperature resistant, with high conveying accuracy, low shear action, compact structure, high reliability, and easy maintenance and cleaning. It is suitable for high-precision conveying requirements in fluoroplastic processing. Fluoroplastic melt pumps have the following characteristics: 1、 Strong corrosion resistance Material advantage: The pump body and gears are made of corrosion-resistant materials, which have good resistance to acids, alkalis, organic solvents, and other highly corrosive media. Therefore, various corrosive fluoroplas
2024-10-15 What are the advantages and disadvantages of BOPP film extrusion melt pump?
The melt pump for BOPP film extrusion plays a significant role in the plastic extrusion industry, and its advantages and disadvantages are analyzed as follows: Advantages Stable Melt Pressure and Flow Rate: The melt pump can stably output the melt, ensuring that the pressure and flow rate remain constant during the extrusion process. This helps improve the dimensional accuracy and product quality of the extruded products. Increased Extrusion Output: By increasing the pressure of the melt, the melt pump can more effectively push the melt through the extruder die, thereby increasing the extrusio
2024-10-11 How to choose a melt pump for wire and cable production line?
When selecting a melt pump for a wire and cable production line, several key factors need to be considered to ensure it meets production requirements and operates at its best performance: Production Capacity Demand Firstly, it is essential to clarify the production capacity demand of the line, which determines the melt flow rate that the melt pump needs to handle. Based on the production volume, an appropriate melt pump model can be selected to ensure that it meets the production needs. Therefore, when choosing a melt pump, it is necessary to understand its flow rate range to ensure that the s
2024-09-26 What other parameters of the melt pump affect the conveying efficiency?
Among the other parameters of melt pumps, several factors significantly impact their conveying efficiency. The following are some of the primary influencing factors: I. Melt Viscosity Melt viscosity is a crucial factor affecting conveying efficiency. Higher-viscosity melts require greater shear force to overcome internal resistance during conveyance, thus potentially necessitating lower rotational speeds to prevent pump overload and melt overheating. Conversely, lower-viscosity melts may flow mor
2024-09-24 Application of Melt Pump in Plastic Granulation
The application of melt pumps in plastic granulation is crucial, it mainly plays the role of stable conveying, pressurization and accurate metering, thus significantly improving the efficiency of the plastic granulation process and product quality. The following are the specific applications of melt pumps in plastic granulation: Stable conveying: Plastic granules in the molten state, its viscosity, temperature and fluidity will be affected by a variety of factors, such as the fluctuation of the screw extruder, the unevenness of the raw material, etc.. The melt pump can provide a constant back
2024-09-21 Does the plastic film production line need to be equipped with a melt pump?
The question of whether a plastic film production line must be equipped with a melt pump does not have an absolute answer. It depends on various factors such as the specific needs of the production line, product quality requirements, production cost considerations, and the complexity of the production process. Below is an analysis of the potential benefits and considerations of installing a melt pump: Benefits of Installing a Melt Pump: Enhanced Product Quality: A melt pump stabilizes the pressure and flow rate of the plastic melt, contributing to the production of plastic films with uniform t
2024-09-19 Selection of PET sheet extrusion melt pump
When selecting a melt gear pump for PET sheet extrusion, several crucial factors must be taken into account to ensure that the pumps performance meets production requirements and guarantees the quality of PET sheets. Here are the key selection points: I. Production Demand Firstly, it is essential to clarify the production demand of the production line, measured in kg/h. Production demand serves as a significant basis for choosing the model of the melt pump, as different models have varying conveying capacities that must align with actual needs. II. Application Field Considering the specific ap
