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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 -
5 ways to remove rust from carbon steel tubes
Rust removal of carbon steel tubes (cs tube) is an important step in ensuring the safe operation and service life of pipelines. The following are 5 commonly used rust removal methods for carbon steel tubes: 1. Manual rust removal Manual rust removal uses hand tools (such as wire brushes, shovels,...Read more -
Quality requirements for external corrosion protection of steel pipes
1. The rust removal of the surface of the steel pipe should reach the sa2.5 standard of gb8923-88, showing the natural color of the metal, without visible grease, dirt, rust, and other attachments. 2. The anti-corrosion layer should be cured within 24 hours, with uniform thickness, compactness, n...Read more -
Warehouse management and hoisting precautions for spiral welded pipe factory
Warehouse management and hoisting precautions for spiral welded pipe factory: 1) Matters needing attention in storage management of spiral welded pipes 1. The foundation on which steel pipes are stacked should be higher than the ground level to ensure that part of the steel pipe body is not immer...Read more -
Development of steel pipe production technology
It started with the rise of bicycle manufacturing. The development of petroleum in the early 19th century, the manufacture of ships, boilers, and aircraft during the two world wars, the manufacture of thermal power boilers after the Second World War, the development of the chemical industry, and ...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