What should be paid attention to in the pipe production line? – Suzhou Polytime Machinery Co., Ltd.

As an important part of chemical building materials, plastic pipe is widely accepted by the majority of users for its superior performance, sanitation, environmental protection, and low consumption. There are mainly UPVC drainage pipes, UPVC water supply pipes, aluminum-plastic composite pipes, polyethylene (PE) water supply pipes, and so on. The pipe production line is composed of the control system, extruder, head, setting cooling system, tractor, planetary cutting device, and turnover frame.

Here is the content list:

What are the types of pipe production lines?

What should be paid attention to in the PPR pipe production line?

What are the types of pipe production lines?
There are two main production lines. One is the PVC pipe production line, which mainly produces pipes with PVC powder as raw material, including drainage pipe, water supply pipe, wire pipe, cable protective sleeve, and so on. The other is the PE / PPR pipe production line, which is a production line with granular raw materials mainly composed of polyethylene and polypropylene. These pipes are generally used in the water supply system and transportation system in the food and chemical industry.

What should be paid attention to in the PPR pipe production line?
Several problems should be paid attention to when using pipe production lines for pipe production.

The first is the control of apparent size. The apparent size of pipe mainly includes four indexes: wall thickness, average outer diameter, length, and out of roundness. During production, control the wall thickness and outer diameter at the lower limit and the wall thickness and outer diameter at the upper limit. Within the scope allowed by the standard, pipe manufacturers can have more space to find a balance between product quality and production cost, to meet the quality requirements and reduce the cost.

The second is the matching of the die and sizing sleeve. The vacuum sizing method requires that the inner diameter of the die must be greater than the inner diameter of the sizing sleeve, resulting in a certain reduction ratio, so that a certain angle can be formed between the melt and the sizing sleeve to ensure effective sealing. If the inner diameter of the die is the same as that of the sizing sleeve 鈥?nbsp;Any adjustment will lead to loose sealing and affect the quality of pipes. Too high a reduction ratio will lead to the excessive orientation of pipes. There may even be melt surface rupture.

The third is the adjustment of die clearance. Theoretically, to obtain pipes with uniform wall thickness, the centers of the core die, die, and sizing sleeve are required to be in the same straight line, and the die clearance should be adjusted evenly and uniformly. However, in production practice, pipe manufacturers usually adjust the die clearance by adjusting the die pressing plate bolts, and the upper die clearance is usually greater than the lower die clearance.

Core removal and die change are the fourth. When producing pipes of different specifications, the disassembly and replacement of die and core die are inevitable. Because this process is mostly manual labor, it is easy to be ignored.

The fifth is the adjustment of wall thickness deviation. The adjustment of wall thickness deviation is mainly carried out manually, usually in two ways. One is to adjust the die clearance, and the other is to adjust the upper, lower, left, and right positions of the sizing sleeve.

With the continuous development of the market, more and more products are put into production, and the plastic pipe production line is also continuously developed and upgraded, which is more in line with the requirements of modern architecture and engineering. The process level is improved, the product quality is safe and reliable, and the overall development prospect is very broad. Suzhou Polytime Machinery Co., Ltd. always takes the quality of life as the leading purpose and hopes to build an International Machinery Co., Ltd. If you are engaged in the field of plastic pipe production line, you can consider our cost-effective products.