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2024-12-17 What is the working pressure of the melt pump in a sheet extruder?
The working pressure of the melt pump in a sheet extruder is a range value, with a normal working pressure generally between 5-20 MPa. However, melt pumps of different models and specifications may vary. Some melt pumps may have a relatively low inlet pressure, typically around 3-5 MPa, while the outlet pressure may be higher, sometimes reaching 40 MPa or even higher. However, the large pressure difference usually does not exceed a certain limit, such as 25 MPa. In addition, it should be noted that the melt pressure in the extruder is also affected by various factors such as material character
2024-12-14 Application Areas of PET, PA, PVC Plastic Film Extrusion Melt Pumps
PET, PA, and PVC plastic film extrusion melt pumps have a wide range of applications in the plastics processing industry. Below is a detailed summary of their application areas: I. Plastic Film Manufacturing PET Film: Melt pumps play a crucial role in the production of PET film. By precisely controlling the flow rate and pressure of the melt, they ensure that the film has a uniform thickness and a smooth surface, meeting the demand for high-quality PET film in packaging, electronics, optics, and other fields. PA Film: For the production of PA (nylon) film, melt pumps can also stably convey the
2024-12-13 The sealing methods for masterbatch granulating melt gear pumps
The sealing methods for masterbatch granulating melt gear pumps are crucial, as they directly impact the pumps performance, reliability, and service life. Below are the common sealing methods for masterbatch granulating melt gear pumps: I. Packing Seal Overview: Packing seal is a traditional sealing method that prevents melt leakage through packing materials (such as PTFE, flexible graphite braided materials, etc.). Characteristics: It features a simple structure, low cost, and easy installation and disassembly, making it a cost-effective sealing method. However, due to the high pressure insid
2024-11-25 What other materials can the PET filament extrusion melt pump be used for?
The PET filament extrusion melt pump is primarily used for melt conveyance in the production process of PET plastics. Its functions are mainly reflected in conveying PET raw materials, controlling the production process, improving product quality, and reducing production costs. Besides PET materials, this pump can also be used for the following types of materials: Polymer materials: The PET filament extrusion melt pump can be used to convey various polymer materials such as PA (polyamide), PB (polybutene), PC (polycarbonate), PE (polyethylene), PS (polystyrene), HIPS (high-impact polystyrene),
2024-11-22 Attentions for the Use of Resin reactor kettle Booster Gear Pump
The following are the attentions that need to be paid when using a resin reactor kettle booster gear pump : I. Preparation Before Startup Check the Process Flow: Ensure that the process flow is correct to avoid equipment damage or safety accidents due to misoperation. Clear Obstacles: Check if there are any obstacles around the gear pump that may hinder its operation, and ensure there is sufficient space around the equipment for safe operation. Tighten Bolts: Check if the bolts of the coupling protective cover and the foundation feet are tightened to prevent vibration or noise due to loosening
2024-11-16 What are the specific application cases of melt pumps in the chemical fiber industry?
The specific application cases of melt pumps in the chemical fiber industry are extensive and diverse. Below are some typical examples: Polyester Fiber Production In the production process of polyester fibers, melt pumps play a crucial role. After polyester raw materials are melted at high temperatures, they are stably and continuously conveyed to the spinning die through melt pumps. Melt pumps can precisely control the flow rate and pressure of the melt, ensuring the stability and continuity of the spinning process, thereby producing high-quality polyester fibers. Nylon Fiber Production The p
2024-11-13 Acid and Wear Resistance of Stainless Steel Melt Gear Pump
Stainless steel polymer gear pump is a type of gear pump, specifically a gear pump with acid and wear-resistant functions. According to the design scheme provided by the present utility model, an active shaft and a passive shaft are installed on the housing, a gear is installed on a section of the active shaft located inside the housing, and a gear that meshes with the gear is installed on the passive shaft to form a pair of gear pairs. The material inlet and outlet are set on the housing, characterized in that a ceramic plate is set on the inner wall of the cavity that accommodates the gear p
2024-11-09 What are the applications of melt metering pumps in extruders
The application of melt metering pumps in extruders is mainly reflected in the following aspects: I. Functional Roles Stable Output Pressure: Melt metering pumps can significantly reduce the instability of material output and pressure pulsation caused by extruder parameters, ensuring a smooth extrusion process. Improved Product Quality: By using melt metering pumps, the flow rate and pressure of molten materials can be precisely controlled, resulting in extruded products with small dimensional tolerances and high quality, effectively reducing waste and scrap rates. Increased Extrusion Output:
2024-11-08 What is the application scope of plastic film extrusion melt pump?
The application scope of plastic film extrusion melt pumps is quite extensive. They are primarily used for the conveying, pressurizing, and metering of high-temperature, high-viscosity polymer melts, especially playing a crucial role in the production process of plastic films. Here are specific explanations of their application scopes: Plastic Film Production: Melt pumps effectively pressurize and stabilize the high-temperature plastic melt from the extruder, then deliver it to the extruder die at a stable flow rate, ensuring uniform thickness and consistent quality of the plastic film. Produc
2024-11-07 PPS (Polyphenylene Sulfide) plastic granule raw material melt pump
The PPS (Polyphenylene Sulfide) plastic granule raw material melt pump is a device specifically designed for the conveyance, pressurization, and metering of high-temperature, high-viscosity polymer melts, such as PPS plastic granules. Below is a detailed introduction to the PPS plastic granule raw material melt gear pump : Performance Characteristics High-Temperature and High-Pressure Capability: The melt pump can withstand high-temperature and high-pressure working environments, making it suitable for processing high-temperature, high-viscosity polymers like PPS plastic granules. Stable Conve
