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Application Processing Method of Seamless Steel Pipe

Date:2020-12-18    keywords:seamless steel pipe, processing method
1. Grinding of the pipe mouth of seamless steel pipe: After cutting, an angle grinder should be used to polish the plastic layer of the pipe mouth. The purpose is to avoid melting or burning of the plastic layer during flange welding and destroying the pipe. Use an angle grinder Polish the nozzle plastic layer.

2. Seamless steel pipe plastic coating treatment: after polishing, use oxygen and C2H2 to heat the pipe mouth outside the pipe until the internal plastic layer is melted, and then the skilled worker will evenly spread the pipe mouth with the prepared plastic powder , It should be noted that it must be applied in place, and the flange plate shall be painted above the water stop line. This process should strictly control the heating temperature. If the temperature is too high, bubbles will be generated during the plastic coating process. If the temperature is too low, the plastic powder will not melt completely during the plastic coating process. The above conditions will produce plastic after the pipeline is put into use. The phenomenon of layer peeling, and finally the seamless steel pipe part of the pipeline is corroded and damaged.


3. Seamless steel pipe cutting: According to the actual length of the pipeline, the pipe should be cut with a metal saw or a toothless saw.When water welding is used in the cutting process, the raw materials must be protected. When cutting, fire-resistant and heat-resistant materials should be used at the two ends of the fracture to catch the sparks and hot molten iron that fall during cutting.Protect the original plastic layer of the raw material.

4. Seamless steel pipe pipe connection: After the plastic repair is completed, the pipe and the pipe fittings are connected and installed, and the rubber pad is added between the flanges during the connection process, and the bolts are tightened to the sealed state.


Tips: A53 ERW pipe is a typical carbon steel pipe. It is largely used to convey fluids at low / medium pressures such as oil, gas, steam, water, air and also for mechanical applications.

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