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Threeway Steel Co., Ltd

E-mail: sales@srtsteelpipe.com

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How to cool after the quenching process of large-diameter steel pipe

How to cool after the quenching process of large-diameter steel pipe

Keywords :How to cool after the quenching process of large-diameter steel pipe        Update : 2022-04-14        View(s) : 773

1. What is the heat treatment process of large-diameter steel pipes ? (1) During the heat treatment process, the reason for the change in the geometry of the large-diameter steel pipe is the effect of heat treatment stress. Heat treatment stress is a relatively complex problem. It is not only...

Maintenance method of large diameter straight seam steel pipe

Maintenance method of large diameter straight seam steel pipe

Keywords :Maintenance method of large diameter straight seam steel pipe        Update : 2022-04-12        View(s) : 745

There is a significant difference between straight seam steel pipe and steel pipe. I believe many people think that the two are similar, the way of use and the performance they have, etc. Straight seam steel pipes are higher than steel pipes. The best types sold in the market are electric weld...

Surface defects of seamless steel pipes and their causes

Surface defects of seamless steel pipes and their causes

Keywords :Surface defects of seamless steel pipes and their causes        Update : 2022-04-08        View(s) : 751

The causes of surface defects of seamless steel pipes are intricate and complicated. There are hundreds of influencing factors listed. Sometimes there are dozens of factors for the same defect, and the generation of defects has a great relationship with the steel type. This is why the production...

Identification method and technological process of fake and inferior steel pipes

Identification method and technological process of fake and inferior steel pipes

Keywords :Identification method and technological process of fake and inferior steel pipes        Update : 2022-04-06        View(s) : 771

1. Fake and inferior thick-walled steel pipes are prone to folding. Folds are various fold lines formed on the surface of thick-walled steel pipes , and this defect often runs through the longitudinal direction of the entire product. The reason for the folds is that the counterfeit and inferior...

What are the types of trenchless repair technologies for steel pipelines

What are the types of trenchless repair technologies for steel pipelines

Keywords :What are the types of trenchless repair technologies for steel pipelines        Update : 2022-04-01        View(s) : 706

There are 3 categories of trenchless repair technologies for steel pipelines (including more than 10 process technologies) First is to use the resin curing method to form a new drainage steel pipeline inside the steel pipeline , such as CIPP, on-site curing, and other processes; The secon...

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