Can you grasp the production process conditions of PVC pipes?

PVC pipe is a kind of multi-component plastic, which can present different physical properties according to different additives. According to its different properties, it can be divided into two kinds: soft PVC and hard PVC. Soft PVC is mainly used for floor, ceiling and leather surface. Hard PVC is made of polychloroethylene resin and high-performance processing aids. It can be extruded or injected at high speed All kinds of molded plastic products are used for PVC drainage and water supply pipes, which have the advantages of light weight, small resistance to corrosion water flow, energy saving, quick installation, low cost, etc.

Because of its own heat sensitivity and high decomposition, PVC pipes will decompose even if stabilizer is added, which only increases the stability time. Therefore, when reproducing PVC pipes, it must be controlled from all aspects. Next, Netcom will tell you what to do:

1. Temperature: the temperature of PVC pipe directly affects the quality of the finished pipe. If the temperature of the pipe is too low, it will cause poor plasticization, dull appearance of the pipe, poor mechanical properties, and the product quality can not meet the requirements; if the temperature is too high, the material will decompose and the product will change color. Therefore, it is very important to grasp the temperature.

2. Rotation speed of screw: in the reproduction process of PVC pipe, the output of products will be controlled according to the rotation speed of screw. In order to improve the output, some businesses will adjust the rotation speed faster, which will result in the increase of defective products; if the rotation speed is too slow, the products will not be produced, the output will be reduced, and there will be no profit.

3. Traction speed: it is very important to adjust the traction speed of PVC pipe in the extrusion operation. After extrusion, melting and plasticizing, the material is drawn after continuous extrusion from the head, thus entering the setting device, cooling device, traction device, etc. the traction speed should match the extrusion speed. Generally, the drawing speed should be about 1% ~ 10% faster than the extrusion speed of pipe.

4. Pressure control: in the production process of PVC pipe, the pressure value is very important. If the core mould is cooled when the pressure is too large, the inner wall of the pipe will crack, not smooth, and the quality of the pipe will decline; if the pressure is too small, the pipe will not be round, so the pressure value must be properly controlled and stable, and cannot be changed from big to small.

In the PVC pipes production process of we must grasp the above points, and every step cannot be ignored. Therefore, the network pipe industry reminds some manufacturers that in the PVC pipes production process, we must not ignore the quality of these products in order to improve the output. Only by paying attention to these details, can the enterprise develop faster and stand more stable!!