1. Seamless steel pipe mouth polishing: After the cutting is completed, the corner grinding machine should be polished by the plastic layer of the tube. The purpose is to avoid melting the plastic layer or even burning the pipes during flange welding. Use the corner grinding machine to polish the plastic layer.
2. Seamless steel pipe coating plastic treatment: After polishing, use oxygen, C2H2 to heat the pipe exterior outside the pipe, heat it to the internal plastic layer, there is a melting phenomenon. It should be noted that you must apply it in place.
This process should strictly control the heating temperature. If the temperature is too high, there will be air bubbles during the painting process. If the temperature is too low, the plastic powder is not completely melted during the plastic process. The phenomenon of layer falling off was finally corroded and damaged by seamless steel pipes.
3. Seamless steel pipe cutting: Depending on the length of the pipeline required, the pipeline should be cut with metal saws and toothless saws. When using water welding during the cutting process, there must be a protective method for raw materials. When cutting, it should be used at the position of the two ends of the fracture to use the fire -resistant heat -resistant material for a baffle to catch the spark and hot iron beans falling when cutting. Original plastic layer.
4. Seamless steel pipe pipeline connection: After complementing, connect the pipeline and pipe parts to install, and add rubber pads between the flanges during the connection process.
