The cause of wire extrusion machine vacuum port riser
 Jan 24, 2022|View:566

A wire extrusion machine is a plastic machine consisting of extrusion, a transmission, and a heating and cooling system, however, there are some problems in the production of wire extrusion machine, especially the feeding of wire extrusion machine vacuum port.


wire extrusion machine


There are generally two reasons for the vacuum outlet riser, one is the screw design problem, the exhaust port material backflow, the other is the exhaust port design is not reasonable, melted material through the exhaust port when the "Hang.". Screw problem we can use an exhaust screw, the use of multi-stage design, exhaust port for atmospheric pressure, the material can not flow out. Exhaust screw needs to pay attention to is in the exhaust section when the material needs to be all melted; the second-order feed to be greater than the first-order screw, in order to make exhaust port to maintain normal pressure. If the screw is only partially filled with the exhaust port and the exhaust port is still emitting material, then there is a problem with the design. The exhaust port should be wider than the rolling flow to ensure that the exhaust port is not blocked. Another simple way to solve the problem of wire extrusion machinefeeding is to change the process conditions, such as cooling down, increasing the friction along the barrel or screw, shearing force, and also increasing the friction and viscosity along the barrel surface, to increase the load.



To get a high-quality wire extrusion machine, you need to find a reliable manufacturer, Jiangsu HANDING Machinery Co. . , Ltd independently research and development all kinds of twisted pair, wire extrusion machine, take-up machine, and other equipment, efficient and stable, intend to understand, welcome to contact.