The practical application processing method of seamless pipe:
1. Grinding of the nozzle of seamless steel pipe: After cutting, the plastic layer of the nozzle should be ground with an angle grinder. The purpose is to avoid melting or even burning of the plastic layer during flange welding, which may damage the pipeline. Use an angle grinder to grind the nozzle plastic layer.
2. Plastic coating treatment of seamless steel pipe: After grinding, use oxygen and C2H2 to heat the nozzle outside the pipe until the inner plastic layer melts, and then the skilled worker will use the prepared plastic powder to evenly apply the nozzle to the nozzle. , it should be noted that it must be smeared in place, and the flange plate should be smeared above the water stop line. In this process, the heating temperature should be strictly controlled. 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 be completely melted during the plastic coating process. The phenomenon that the layer falls off, and finally the seamless steel pipe part of the pipeline is corroded and damaged.
3. Seamless steel pipe cutting: According to the actual required pipeline length, metal saws and toothless saws should be used to cut the pipelines. When using water welding in the cutting process, there must be a method of protecting the raw materials. When cutting, fire-resistant and heat-resistant materials should be used as baffles at both ends of the fracture to catch the sparks and hot molten iron beans that fall during cutting to protect the raw materials. Original plastic layer.
4. Seamless steel pipe connection: After the plastic repair is completed, the pipe and the pipe fittings are connected and installed. During the connection process, a rubber gasket is added between the flanges, and the bolts are tightened to a sealed state.
