2024-09-12 Rubber extrusion melt gear pump

The polymer extrusion melt pump is a specialized melt pump used in the rubber processing industry, primarily for the transportation, pressurization, and metering of high-temperature, high-viscosity rubber melts. Below is a detailed introduction to the rubber melt pump: I. Definition and Function The rubber melt pump is a positive displacement conveying device that utilizes the change in working volume caused by the meshing of the driving and driven gears to transport the melt. It is primarily employed in the rubber extrusion molding process, such as the production of rubber tubes, rubber sheet

2024-09-11 Modified granulation color masterbatch granulation melt pump

Modified Granulation Color Masterbatch Melt Pump : A Vital Device for High-Temperature, High-Viscosity Polymer Melt Transfer, Pressurization, and Metering,Here is a detailed introduction to this crucial equipment: I. Overview The Modified Granulation Color Masterbatch Melt Pump, or simply known as the Melt Pump, is an indispensable piece of equipment in the plastic processing industry. It operates stably under high-temperature and high-pressure conditions, ensuring continuous transfer and precise metering of polymer melts, thereby fulfilling the stringent requirements of modified granulation a

2024-09-07 What is the maintenance method for the melt pump of the blown film machine?

The maintenance methods of the melt pump in a film blowing machine are crucial for ensuring the stable operation of the machine and prolonging the service life of the melt pump. Here are some key maintenance procedures: I. Daily Inspection and Maintenance Regular Check of Pump Outlet Pressure: Regularly inspect the pump outlet pressure to ensure it operates within the normal range, avoiding overpressure that could damage the pump body. Inspection of Pump Fastening Bolts: Periodically check if the fastening bolts of the pump body and accessories are loose. Tighten them promptly if found loose t

2024-09-06 Does the rotational speed of the melt pump have any effect on the melt flow rate?

The rotational speed of the extruder melt pump has a direct and significant impact on the melt flow rate. The following is a detailed analysis of this impact: Direct Proportionality The flow rate of the melt pump exhibits a strict direct proportionality with its rotational speed. This means that as the rotational speed of the melt pump increases, the conveyed melt flow rate correspondingly increases; conversely, when the rotational speed decreases, the melt flow rate also decreases. This characteristic makes adjusting the rotational speed of the melt pump an effective means of controlling the

2024-09-03 Does the sheet extrusion production line need to use a melt pump?

The question of whether a extrusion gear pump is absolutely necessary for a sheet extrusion line does not have a definitive answer. It primarily depends on specific production needs, process conditions, and economic benefits, among other factors. Below is a detailed analysis of this issue: I. Role of Melt Pump in Sheet Extrusion Lines Stable Extrusion: The melt pump eliminates feeding errors from the feeding system and mitigates fluctuations transmitted from upstream processes, resulting in a more stable extrusion process. This enhances the dimensional accuracy of the sheets and reduces waste

2024-09-02 What are the advantages of the control system for melt pumps?

The control system of the melt pump plays a crucial role in the melt pump extrusion system, and its advantages are mainly reflected in the following aspects: I. Improving Output Stability and Product Quality Reducing Pressure Fluctuations: During the extrusion process, the control system can reduce pressure fluctuations caused by factors such as uneven material feeding, temperature fluctuations in the barrel and die head, and screw speed pulsations. This helps ensure dimensional accuracy of the extruded products, thereby reducing waste rates and improving product quality. Optimizing Operating

2024-08-31 Analysis of the causes of material leakage in the melt pump

The reasons for material leakage in a melt pump can be attributed to multiple factors, primarily related to the pumps structure, operating conditions, and maintenance status. Below is a detailed analysis of the causes of material leakage in a melt pump: I. Sealing Failures Aging or Damage of Sealing Components: Sealing components in a melt pump, such as shaft seals, packing, and O-rings, may lose their sealing effectiveness due to aging, wear, or corrosion after prolonged operation, leading to material leakage. Improper Installation: If sealing components are not installed according to specifi

2024-08-29 Is the application range of melt gear pump very wide?

Yes, the application range of melt gear pumps is extremely broad. As mentioned earlier, melt gear pumps, as specialized equipment for conveying high-temperature molten materials, have significant applications across multiple industries. They not only play a pivotal role in the plastic processing industry (such as extrusion molding and injection molding) but are also widely used in fields like chemical fibers, rubber, chemicals, pharmaceuticals, and more. In scenarios where high-temperature, high-pressure, and high-viscosity molten media need to be processed, the importance of melt gear pumps b

2024-08-27 Precautions for selecting cross axis universal joint for melt gear pump

When selecting and configuring the cross-shaft universal coupling for a melt gear pump, which transmits torque between the pump and the motor, it is important to pay attention to the following points given its high angle compensation capability, compact structure, smooth and noiseless operation, strong load-bearing capacity (with torque reaching over 6000KNM), suitability for high-power transmission, and notable energy-saving effect. This type of coupling is widely used in various applications. For polymer melt conveying gear pumps, the key considerations are: 1.Understanding the Load Characte

2024-08-26 How to determine the size of the melt pump? How to calculate the pump's output per minute?

The melt metering pump uses displacement to indicate its size. The models of melt metering pumps range from 0.2cc to 12000cc. This includes: 0.2cc, 0.5cc, 1cc, 2cc, 5cc, 10cc, 20cc, 31.5cc, 50cc, 100cc, 150cc, 200cc, 315cc, 500cc, 800cc, 1200cc, 3200cc, etc. For example, a 100CC displacement melt pump metering pump refers to a displacement of 100cc per revolution of the melt metering pump, which can also be understood as 100ml. The speed of the melt metering pump varies depending on the viscosity of the conveyed material. When the viscosity of the material is between 1000-5000PA S (viscosity u