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What are the heat treatment methods for spiral steel pipes

What are the heat treatment methods for spiral steel pipes

Keywords :What are the heat treatment methods for spiral steel pipes        Update : 2023-01-03        View(s) : 541

1. Thermomechanical treatment High-temperature thermomechanical treatment can improve the yield ratio and elastic limit of spiral steel pipe . Improve the comprehensive mechanical properties, fatigue properties, and stress relaxation properties of the spiral steel pipe. Reducing the ductile-bri...

What problems should be paid attention to when welding galvanized steel pipes

What problems should be paid attention to when welding galvanized steel pipes

Keywords :What problems should be paid attention to when welding galvanized steel pipes        Update : 2022-12-30        View(s) : 1

1. The premise is to polish the galvanized steel pipe The galvanized layer at the weld must be polished off, otherwise, bubbles, trachoma, false welding, etc. will occur. It will also make the weld brittle and reduce rigidity. 2. The welding characteristics of galvanized steel Galvanize...

Selection of welding skills for stainless steel pipe fittings

Selection of welding skills for stainless steel pipe fittings

Keywords :Selection of welding skills for stainless steel pipe fittings        Update : 2022-12-29        View(s) : 481

1. Argon arc welding is a welding technique that uses argon as a shielding gas. Also known as argon gas-shielded welding. It is to pass argon protective gas around the arc welding to isolate the air from the welding area and prevent the oxidation of the welding area. Argon arc welding technology is ...

What problems should be paid attention to when connecting galvanized steel pipes

What problems should be paid attention to when connecting galvanized steel pipes

Keywords :What problems should be paid attention to when connecting galvanized steel pipes        Update : 2022-12-28        View(s) : 588

The specification of the connection method of galvanized steel pipe depends on the type of connection method. Generally, there are several types, such as flange connection, clamp groove connection, and welding. In the actual connection of galvanized steel pipes, welding is the most commonly used...

Quenching Technology for Straight Seam Welded Steel Pipe

Quenching Technology for Straight Seam Welded Steel Pipe

Keywords :Quenching Technology for Straight Seam Welded Steel Pipe        Update : 2022-12-27        View(s) : 529

The surface quenching and tempering heat treatment of straight seam welded steel pipe is usually carried out by induction heating or flame heating. The main technical parameters are surface hardness, local hardness, and effective hardened layer depth. Vickers hardness tester can be used for hard...

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