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Large-diameter steel pipe welding work
Construction preparation before welding of large diameter steel pipe: 1. Organize relevant operators, be familiar with construction drawings and regulations, formulate welding procedures, and compile welding operation instructions. 2. Welders should be trained in corresponding projects and have o...Read more -
Spiral steel pipe stacking principle requirements
1. The principle requirement of spiral steel pipe stacking is to stack according to varieties and specifications under the premise of stable stacking and ensuring safety. Different varieties of materials should be stacked separately to prevent muddling and mutual erosion; 2. It is forbidden to st...Read more -
The processing method of straight seam steel pipe
The straight seam steel pipe is a steel pipe whose weld seam is parallel to the longitudinal direction of the steel pipe. The strength is generally higher than that of the straight seam welded pipe. However, compared with the same length of straight seam pipe, the length of the weld is increased ...Read more -
Types of oil casings
Different types of casing used in oil production: Surface oil casing protects the well from contamination by shallow water and shallow gas layers support wellhead equipment and maintain the weight of other layers of casing. Technical oil casing separates pressure at different levels so that drill...Read more -
Welding treatment of thick-walled spiral steel pipe
Thick-walled spiral steel pipe is a method of arc welding under the flux layer, which is formed by using the heat generated by the arc burning between the flux and the welding wire under the flux layer, the base metal, and the melting wire flux. In the process of use, the principal stress directi...Read more -
The use of spiral steel pipe for anti-corrosion
Due to the corrosion of steel pipes and equipment, the quality of products has been reduced due to the shutdown of production enterprises. Affect the domestic gas supply, heating steam or hot water, and bring many difficulties to people’s lives. Leakage of buried oil, gas, water, and other ...Read more