Stainless steel welded pipe
Your current location : News >> News >> Technical Information

Introduction to the production of small diameter precision stainless steel industrial welded pipe

2020-01-11

The use of small-diameter precision stainless steel industrial welded pipes is slightly different from that of large-diameter stainless steel welded pipes. Small-diameter welded pipes are mainly used in the medical industry, automotive industry, electronics industry, mechanical parts, threading pipes and other major industries. Here are some details about small-diameter precision stainless steel welded pipes.

Stainless steel welded pipe wholesale

Small caliber precision stainless steel welded pipe

1. Production of small diameter precision stainless steel welded pipes with small internal burrs:

An important aspect of the quality of small-diameter precision stainless steel welded pipe is the removal of burrs in the weld. Due to the limitation of space, the removal of internal burrs in small-diameter stainless steel welded pipe has always been a technical difficulty in the manufacture of stainless steel welded pipe. Therefore, choosing a suitable welding method from the welding technology is an effective way to solve the problem. Welding methods with small internal burrs include direct current welding and square wave resistance welding. These welding methods have the characteristics of uniform heating, smooth weld seam, good quality, and small internal burr formation, generally only 0.1 ~ 0.2㎜.

2. Production of high-precision ultra-thin stainless steel welded pipe by micro-beam plasma method:

Micro-beam plasma welding of very thin-walled stainless steel welded pipe, the outer weld is bright and smooth, the inner weld is flat and dense, the average burr height does not exceed 0.031 ~ 0.020㎜, the outer diameter of the steel pipe after welding is 0.10 ~ 0.23㎜, the wall thickness difference is 0.020 ~ 0.034㎜, after cold rolling, it effectively eliminates the excessive range of outer diameter ellipticity, the wall thickness difference reaches 0.002 ~ 0.007㎜, and the quality completely reaches the level of precision seamless thin-walled tube. After heat treatment, it has the same structure and performance as the seamless tube, and the economic advantage of using the seamless tube to produce extremely thin tubes is much less than that of the ultra-thin tubes processed by cold rolling after welding.

3. High-strength stainless steel welded pipe for the automotive industry:

In recent years, the domestic and foreign automobile industries have promoted lightweight vehicles to save energy, and there is an urgent need to replace solid parts with high-strength hollow parts. It is technically feasible to develop high-strength stainless steel welded pipes to replace seamless pipes to meet the needs of the automotive industry. Japan has successively developed C-Ti-B, C-Mn-Nb, C-Cr-AI-B and other steel types in the development of high-strength stainless steel welded pipes for the automotive industry, and adopted different heat treatment systems according to different purposes , Such as annealing, normalizing and quenching, tempering, etc. Used in the automotive industry high-strength stainless steel welded pipe, the standard strength levels are 561MPa, 637MPa, 980MPa, etc. In addition to requiring high strength, the stainless steel welded pipe also requires high plasticity, good workability, hardenability, toughness and fatigue strength.


Tag

Browse:

© Copyright 2019-2024  Jiangsu bandari stainless steel co. LTD Specializing inStainless steel industrial welding pipe, stainless steel welding pipe, stainless steel welding pipe manufacturers,Welcome to inquire!  版权所有   support:Xiangyun Platform Yancheng Company copyright:苏ICP备15010124号-1