How to ensure the quality of ERW steel pipe

The advantages of this ERW steel pipe processing technology are that there is a heat treatment process after welding to eliminate the residual stress in the weld and heat affected areas, to refine the grain, and to make the heat affected zone of the weld small, and the heating speed is fast, thus greatly improving the welding speed and welding quality, and can be used as a blank without pickling, shot peening and trimming. At the same time, it can weld alloy steel, high alloy steel and non-ferrous metal pipe, greatly reducing unit power consumption. A set of welding equipment can be used to produce each.

The advantages of this ERW steel tube processing technology are that there is a heat treatment process after welding to eliminate the residual stress in the weld and heat affected areas, to refine the grain, and to make the heat affected zone of the weld small, and the heating speed is fast, thus greatly improving the welding speed and welding quality, and can be used as a blank without pickling, shot peening and trimming. At the same time, it can weld alloy steel, high alloy steel and non-ferrous metal pipe, greatly reducing unit power consumption. A set of welding equipment can be used to produce each.

However, for the ERW steel tube, the larger the diameter is, the more limited the strip weight and wall thickness of the strip will be. The storage equipment is limited by the spiral pipe. In addition, the ERW steel tube unit has higher production speed and is buried. The speed of arc welding pipe is generally 3m / min, and does not match each other. Therefore, the ERW steel pipe unit needs to make full use of and expand its own advantages so as to improve product quality and develop new products.