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Introduction to Five Coloring Methods for Anti-corrosion Steel Pipes

Introduction to Five Coloring Methods for Anti-corrosion Steel Pipes

2020-07-20

Chemical oxidation coloring involves forming the color of a film through chemical oxidation in a specific solution. Common methods include the dichromate method, the mixed sodium salt method, the sulfidation method, the acidic oxidation method, and the alkaline oxidation method. Among these, the "INCO method" is widely used. However, to ensure consistent coloration across an entire batch of products, it is essential to use a reference electrode for control.

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How are corrosion-resistant bends protected against corrosion?

How are corrosion-resistant bends protected against corrosion?

2020-07-20

Many people doubt the corrosion resistance of 3PE bent pipe anti-corrosion steel pipes and 2PE elbow anti-corrosion steel pipes. However, once you understand the manufacturing technologies behind these pipes, you’ll realize that both 3PE bent pipe anti-corrosion steel pipes and 2PE elbow anti-corrosion steel pipes have just as good corrosion resistance as conventional anti-corrosion steel pipes.

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How can we inspect the quality of welded elbows based on their appearance?

How can we inspect the quality of welded elbows based on their appearance?

2020-07-20

Looking at the surface of a butt-welded elbow, one can tell whether the manufacturing process is meticulous. Generally speaking, reputable butt-welded elbow manufacturers are absolutely thorough and careful in their production, and will not allow any defects such as scratches or blemishes to appear. The cross-sectional shape of substandard or counterfeit butt-welded elbows is uneven, because manufacturers, in order to save on materials, tend to set excessively large reduction ratios during the first two passes of rolling. As a result, the strength of such steel is significantly reduced, and the product also fails to meet the standard dimensions for butt-welded elbows.

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Warmly congratulate the company on the establishment of its suggestion box!

Warmly congratulate the company on the establishment of its suggestion box!

2020-06-04

As the company continues to expand in size, the requirements and opinions of our employees are becoming increasingly diverse. To provide a platform for employees to voice their opinions, we’ve specially established this suggestion box.

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Introduction to Polyethylene Cold Wrapping Tape

Introduction to Polyethylene Cold Wrapping Tape

2020-06-04

Polyethylene cold-wrap tape is suitable for corrosion protection and repair of straight pipes, elbows, storage tanks, conduits, and other components in pipelines used for petroleum, natural gas, chemical industry, and water supply and drainage systems. Polyethylene cold-wrap tape is made from a polyethylene-based film.

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Introduction to Single-Layer Fusion-Bonded Epoxy Powder

Introduction to Single-Layer Fusion-Bonded Epoxy Powder

2020-06-04

Thanks to its strong adhesion to the steel pipe surface, excellent resistance to chemical media corrosion, and superior temperature tolerance, fused epoxy powder coatings also exhibit outstanding performance in terms of corrosion resistance, resistance to cathodic disbondment, aging resistance, and resistance to soil stress.

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