Explanation of Anti-corrosion Steel Pipe Bubble

Anti-corrosion coating steel pipe are mostly formed by lateral winding, rong rong of the state of the poly (alizarin static film formed by multi-layer lap winding required thickness of the coating. To strictly control the production so as to avoid the wrap up into the air bubbles, causes of bubble in production is mainly of polyethylene material moisture, or play to steel pipe sag, and the cause of the problem such as silica gel roller roller pressure Angle, there are mainly use the dryer out of polyethylene material moisture, serious porch, substandard carbon steel pipe, adjust the home overseers and hardness of the rubber roller, etc.

Anti-corrosion steel pipe production process by high temperature cooling water will be wrapped around the steel pipe coating cooled down, and it is through the way of spray water cooling. Suddenly after high temperature coating with cold water cooling, if the cooling water control is bad will in the anti-corrosion coaing steel pipe surface appear a few little a knot in the point of water hammer. The generation of water hammer point is mainly due to the high temperature caused by uneven coating quenching. Control and reduce the amount of water hammer point to control the quality of the 3 PE anticorrosion pipeline method is to adjust the flow of cooling water to reduce cooling water to anti-corrosion steel pipe.