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How do spiral steel pipe prevent rust?

2018-12-27 09:52:18   COMMENT:0 HITS:
  Because the individual quality of spiral steel pipe is relatively large, it must be stacked outdoors, but this will inevitably be sunny and rainy, so the problem of rust has been plagued by the storage time and conditions of spiral steel pipe.

  The steel surface is mainly polished by steel brush and other tools. The cleaning and preheating of Q235 Hot Rolled 28 Inch Ssaw Spiral Steel Pipe can remove loose or warped oxide scale, rust, welding slag, etc. Manual tools can achieve Sa2 level of rust removal, power tools can reach Sa3 level of rust removal. If the steel surface is adhered to a solid oxide scale, the effect of tool rust removal is not ideal, and the depth of anchor lines required for anti-corrosion construction can not be reached.

  Pickling uses solvents and emulsifiers to clean the surface of spiral steel pipes for low-pressure fluid transportation in order to remove oil, grease, dust, lubricants and similar organic substances, but it can not remove rust, oxide scale and welding flux on the surface of steel, so it is only used as an auxiliary means in anti-corrosion production.

  Generally, chemical and electrolytic methods are used for pickling treatment. Only chemical pickling is used for corrosion protection of spiral steel pipe, which can remove oxide scales, rust and old coatings. Sometimes it can be used as reprocessing after sandblasting and rust removal. Chemical cleaning can make the surface clean and roughness to a certain extent, but its anchor lines are shallow, and it is easy to pollute the stacking environment of spiral steel pipe.

  Reasonable use of means to clean up the rusty spiral steel pipe ensures that the spiral steel pipe serve production for a long time and create more production benefits.

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