How to solve the rust phenomenon of double-sided submerged arc welded pipe?
After the double-sided submerged arc welded pipe(DSAW pipe) is rusted, the surface of the steel is mainly polished by using a wire brush or the like, and the cleaning and preheating of the spiral pipe can remove the loose or raised scale, rust, welding slag and the like. The descaling of manual tools can reach Sa2 level, and the rust removal of power tools can reach Sa3 level. If the surface of the LSAW steel pipe is attached with strong iron oxide scale, the rust removal effect of the tool is not ideal, and the anchor depth required for anti-corrosion construction cannot be achieved.
On the basis of the traditional application, a new application has been added, which makes the use of the lsaw steel pipe more abundant, and at the same time reduces the use cost of the LSAW steel pipe. The radio frequency sensor provides 200 volts, 50 amps of smooth flow through the LSAW steel tube, and the experimental sample is heated by induction. The LSAW tube itself does not get hot, but the experimental sample will have a significant fever. When the heating temperature exceeds the arc melting machine, the radio frequency sensor will provide more control, allowing the scientist to adjust the specific composition ratio of the alloy. LSAW steel pipe has strong pressure bearing capacity and good plasticity, which is convenient for welding and processing. Generally, double-sided submerged arc welded pipe (SY5037-83) for low-pressure fluid transportation is made of water by double-sided automatic submerged arc welding or single-sided welding.
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