How to assess the quality of anti-corrosion spiral steel pipes

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2019-08-29

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When the material of an anti-corrosion spiral steel pipe comes into contact with a grinding wheel, it produces distinct sparks. By observing these sparks, we can identify the specific material of the anti-corrosion spiral steel pipe. This method can be used to test anti-corrosion spiral steel pipe strips, plates, bars, wires, and pipes…

When the material of an anti-corrosion spiral steel pipe comes into contact with a grinding wheel, it produces distinct sparks. By observing these sparks, we can identify the specific material of the anti-corrosion spiral steel pipe. This method can be used to inspect 301 anti-corrosion spiral steel pipe strips, plates, bars, wires, and pipes…

1. The sparks produced by SKH2 steel form an arc.

2.304 anti-corrosion spiral steel pipe: the sparks ejected are relatively concentrated.

3.20C steel produces long, scattered sparks when ignited.

4. Sparks produced by SK5 steel are far-reaching and erratic.

By observing the distinct spark patterns, one can determine whether the material is 304 stainless steel spiral‑welded pipe. The characteristic sparks include chrysanthemum‑shaped, gun‑tip‑shaped, jade‑white, and split‑sword‑shaped types. These observations are based on experimental tests; while they are not entirely uniform and may be subject to certain interferences under varying conditions, the overall trends remain largely consistent.

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