Industry News
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Several stages of mechanical expansion process of large diameter steel pipe
The steel plate is first pressed into a U shape in the forming die, and then pressed into an O shape, and then the inner and outer submerged arc welding is carried out. After welding, the diameter is usually expanded at the end of the full length, which is called the UOE welded pipe, and the one ...Read more -
What are the advantages of industrial seamless steel elbows
1. Hygienic and non-toxic: The material is completely composed of carbon and hydrogen without adding any toxic heavy metal salt stabilizers. The hygienic performance of the material has been tested by the national authoritative department. 2. Lightweight: The density of the stamping elbow is 0.89...Read more -
Factors affecting the accuracy and resolution of oil casing wall thickness detection
The API standard stipulates that the internal and external surfaces of import and export petroleum casings shall not have folds, separations, cracks, and scars. These defects should be completely removed, and the removal depth should not be less than 12.5% of the nominal wall thickness. Petroleum...Read more -
Precautions for hot-dip steel pipe
Precautions for hot-dip steel pipes: The pipes that transport hot water can transport cold water, but the pipes that transport cold water cannot transport hot water. The cross-section of the plastic-coated composite pipe shall not be in contact with water, non-plastic lined pipe fittings shall no...Read more -
Correct operation of straight seam steel pipe
1. When the straight seam steel pipe is hung, the wire rope is not allowed to be pulled diagonally to prevent the wire rope from falling out of the groove. 2. Pay attention during operation to ensure personnel and equipment. 3. Frequently check the switches on the front and back of the trolley, a...Read more -
Quality inspection method of seamless steel pipe
1. Steel pipe geometry and shape inspection: ① Inspection of the bevel angle and blunt edge of the steel pipe end face: square, pallet. ②Steel tube curvature inspection: straightedge, level (1m), feeler gauge, thin wire to measure the curvature per meter, and the full-length curvature. ③ Steel pi...Read more