How to ensure the quality of high-frequency welded pipes?

How to ensure the quality of high-frequency welded pipes?

Shandong Kungang Metal Materials Co., Ltd. focuses on producing and selling welded steel pipes, providing excellent products for many industries. Next, we will introduce the differences between high-frequency welded pipes and other welded pipes.

High frequency welded pipe and ordinary welded pipe

The welding process of high-frequency welded pipes is different from that of ordinary welded pipes. The weld seam is formed by melting the base material of the steel strip body, and the mechanical strength is better than that of ordinary welded pipes. The appearance is smooth and clean, with high precision and low cost, and the weld seam has small excess height, which is beneficial for the coating of 3PE anti-corrosion coating.

High frequency welded steel pipes and submerged arc welded pipes

There are significant differences in the welding methods between high-frequency welded steel pipes and submerged arc welded pipes. Due to the instantaneous completion of welding at high speeds, the difficulty of ensuring welding quality is much higher than that of submerged arc welding. For high-frequency welded pipe units, the larger the diameter, the more limited the coil weight and wall thickness of the strip steel raw material. The storage equipment is limited by the spiral loop. In addition, the high-frequency welded pipe unit has a higher line speed, while the submerged arc welded pipe speed is generally 3m/min, which does not match each other. Therefore, high-frequency welded pipe units need to fully utilize and expand their own advantages in order to improve product quality and develop new products.

The advantage of high-frequency welded pipe processing technology is that there is a heat treatment process after welding, which eliminates residual stress in the weld seam and heat affected zone, refines grain size, has a small heat affected zone in the weld seam, and has a fast heating speed. Therefore, it can greatly improve welding speed and weld quality.

Shandong Kungang Metal Materials Co., Ltd. has senior and experienced mechanical engineers who provide high-quality and comprehensive technical support. Introduce advanced production equipment and standard production processes to ensure timely delivery within the agreed delivery period. The company will also provide you with comprehensive procurement solutions and transportation issues to ensure that you return home loaded with high-quality steel pipes.

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Post time: Oct-12-2023