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2021-09-27 Why is a plastic extrusion line equipped with a melt pump?
The basic design of the melt pump determines that the dimensional error of the product can be well controlled at the time, especially in the profile extrusion process, because the specification control is extremely important, which is very important for the quality of the final product. By reducing the pressure fluctuation and giving a more stable die pressure, the melt pump can draw the dimensional error of the extruded product very well (usually plus or minus 5%). Can significantly increase product output and save materials, which is the first major benefit of installing a melt pump. The bas
2021-09-23 What are the characteristics of micro precision melt gear pump?
The pump head materials of micro precision melt gear pump are various and optional. It is suitable for the measurement, transportation and sampling of various acids, alkalis, solvents and various chemical additives. The flow control of the pump can be realized by using controllers such as AC, brushless DC motor and pneumatic motor. It can be applied to high differential pressure, high system pressure and wide medium viscosity range. The high precision of micro precision melt gear pump ensures the accuracy and repeatability of flow. It is especially suitable for non pulsating precision metering
2021-09-16 Melt pump manufacturers share some parameters of melt viscosity
What is the viscosity of the material? The melt pump is suitable for the extrusion process of PS, PP, PET, PVC, PC, PMMA, PA, ABS, PE-LLD and other materials. The viscosity of the conveyed material is also very different. The viscosity of the material will affect the speed of the melt pump. Generally, the viscosity of the material is large, which means that it is thicker, the fluidity is relatively poor, and the speed of the melt pump is relatively small; the viscosity of the material is small, which means that it is thinner, the fluidity is better, and the speed is relatively large. What fact
2021-09-06 How to monitor the melt pump when it is running
When the melt pump is running, it needs monitoring data to determine whether the equipment is operating normally, so what data need to be monitored? 1. The flow of the machine head changes with the change of outlet pressure, and the outlet pressure must be constant. Generally speaking, the fluctuation of outlet pressure shall not exceed 10psi (1psi=0.00689Mpa). Large fluctuations are usually transmission problems, requiring motor technicians to adjust transmission parameters. This problem can als
2021-08-30 Selection requirements for melt metering gear pumps
The melt metering gear pump provided by Zhengzhou Batte is widely used in the production lines of chemical fiber, film, sheet, composite extrusion, pelletizing, etc., covering almost all polymer materials, such as PC, PMMA, ABS, PET, PVB, HIPS, Fluoropolymer, thermoplastic elastomer, rubber, etc. The selection of melt metering gear pumps needs to be based on the requirements of different occasions, and the following conditions need to be fully considered. 1. The flow rate of the liquid to be measured, and the requirements for measurement accuracy. 2. The main characteristics of the liquid bein
2021-08-28 What are the characteristics of the miniature precision melt gear pump?
The pump head of the miniature precision melt gear pump has a variety of materials to choose from, which is suitable for the metering, conveying and sampling of various acids, alkalis, solvents, and various chemical additives. The flow control of the pump can be realized by using controllers such as AC, brushless DC motors, air motors, etc. It can be applied to high pressure difference, high system pressure and wide medium viscosity range. The high precision of the miniature precision melt gear pump ensures the accuracy and repeatability of the flow rate. It is especially suitable for pulsatio
2021-08-27 Zhengzhou Batte manufacturer interprets the improvement plan of axial compensation melt gear pump
Fault phenomenon: The common faults of the melt gear pump are the weak lifting of the boom, jamming, no oil absorption, or extremely low volumetric efficiency; it is found that the side plate of the pump is warped, and the sintered copper layer is worn and peeled. , The gear is scorched and blackened, the bearing sleeve is broken, the needle rollers fall apart, and the 3-shaped sealing ring is broken. Failure analysis: Zhengzhou Batte conducted a lot of analysis and improvement work on this failure, including improving the flatness of the gear end face, improving the forming process of the sid
2021-08-26 What are the reasons why the melt pump cannot be started?
In the daily use process, the melt pump may not start normally; Zhengzhou Batte melt pump, based on years of experience, gave the following 8 kinds of reasons that caused the melt pump to fail to start normally, and also gave targeted solutions. 1. Has the current melt pump body temperature reached the minimum temperature limit set? Set a new temperature limit value lower than the current temperature or wait for the temperature to rise before trying to start. 2. The current displayed outlet pressure exceeds the set value of the set pressure alarm, and the alarm pressure value of the melt pump
2021-06-07 Detailed explanation of melt pump pressure and flow
Introduction to melt pump pressure: The inlet working pressure of the melt pump does not need to be too high, generally 3-5CP. When the inlet is working, the viscosity of the liquid is higher and the working pressure is higher. Sometimes in order to better improve the mixing effect of the wear-resistant materials in the extruder screw, the top of the extruder screw head must have a high working pressure to increase the flow back. At this time, you can increase the inlet of the melt pump of the extruder . pressure. The inlet working pressure is high, and the equipment (such as extruder) can be
2021-05-20 Polylactic acid melt pump|PLA resin bottom melt pump|PLA melt gear pump
Introduction of PLA resin bottom melt pump The PLA resin bottom melt pump is used in conjunction with the reactor to transport and meter PLA (polylactic acid) melt; the PLA bottom pump adopts a large suction inlet flange design, which can complete the polymer material under vacuum reaction conditions delivery. PLA resin is also called polylactic acid. It is a polyester polymer obtained by polymerization of lactic acid as the main raw material. It is a new type of biodegradable material. Character
