Welding quality refers to the degree to which the welding product meets the designed technical requirements. Welding quality is the most important thing in the manufacturing process of welded steel pipe. It not only affects the performance and service life of welding tubes but also decides personal safety and property safety. Welding quality is usually determined by three following factors: design quality, processing quality, quality inspection.

1. Design Quality

The type of joint used in the welding product and its calculated strength should meet the requirements of actual bearing capacity. Welding method should be suitable for the characteristics of components, and its economic efficiency should be good. The welding process should be able to minimize stress, deformation and stress concentration. Labor force and material consumption should be as small as possible, the convenience of flaw detection should also be taken into consideration when designing the joint.

2. Processing Quality

The steel pipe’s quality is determined by the performance of welder, auxiliary equipment and testing equipment. The performance of adopted the tube blanks, welding wire, welding flux or welding electrodes and other welding materials should meet the design requirements. Before welding, the welding material should be dried according to the provisions, the welding groove of the workpiece should meet the requirements and remove the cutting residue, cracks, and dirt.

3. Quality Inspection

Quality inspection passes through the whole manufacturing process from product design to finished product. The properties of the joints, physical properties, mechanical properties, microstructure, chemical composition, corrosion resistance, appearance dimensions and welding defects of products after welding should be checked by means of various inspection methods. We must ensure that the test method used in the quality inspection process is rationality, the reliability of the testing instrument and inspection staff technical level.

In summary, we must do our best to offer high-quality products to our customers.

ADTO GROUP, a China-based Steel tube manufacturer, supply various types of steel pipe for sale. Any interest in our steel pipe products, please have a view on our website: www.adtomall.com

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