High temperature hose is used in high temperature water vapor, oil, chemicals, air and various liquid transfer pipe. In the industrial field, many manufacturing processes require the use of high-temperature hoses, including metallurgy, automotive, paper, casting and other industries. Because the liquid or gas to be transferred must operate in a high temperature environment, it is important to choose the right high temperature hose. When choosing a high temperature hose, the following factors need to be considered:

PE pipe in the production process due to the impact of the environment, may cause some defects on the surface, the more common is the surface roughness or scratches. There are many reasons for this defect, so there are many corresponding repair methods. If it is found that the surface of the PE pipe is rough, it may be caused by the high or low temperature of the host head. For example, when the temperature of the core mold is low, the body temperature is too low to cause the surface roughness; the cooling water temperature is too high to cause the surface roughness. In this development situation, the cooling water temperature should be appropriately reduced. At the same time, we should also check whether there is blockage and insufficient water pressure in the waterway. And check the heating ring, raw material production performance, etc.

The bolts on the flange plate are fixed with metal pipes such as PE pipes connected by flanges, which is not only easy to operate, but also short in construction period. Flange connections are mainly used to connect PE pipes to metal pipes or valves, flow meters, pressure gauges and other auxiliary equipment. Flange connection is mainly composed of PE injection flange, steel or aluminum flange, gasket or sealing ring, bolt and nut. Flange connection is the process of tightening bolts and nuts from beginning to end, so that the flange joint is in close contact with the flange parts. PE pipes can be connected to other metal pipes.

For many years, the research in the construction industry requires metal corrugated pipes, especially on prefabricated beams. In the prestressed part, the prestressed steel strand must pass through the corrugated pipes. When the concrete strength reaches a certain strength, the prestressed steel strand is tensioned. After pulling, grouting is required and then sealing is performed. Therefore, each prefabricated beam needs corrugated pipes, and the quantity is relatively large. In addition, the current engineering construction industry is so prosperous, and the national investment is large enough, so there is a lot of demand.

Extrusion hose surface why there are small black particles. Some silicone manufacturers have consulted us about this problem, so let's briefly discuss what causes this problem. Because there are many reasons, it depends on the composition of the formula and the vulcanization process.