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SSAW steel pipe production precautions

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In the production process of SSAW steel pipe, a series of matters need to be paid attention to. In addition to the following test items, in accordance with API standards and other relevant standards and special requirements of some users, destructive tests on steel, steel pipes, etc. are required, including factory sampling of the physical and chemical properties of raw materials, and visual inspection of 100% steel.


SSAW steel pipe


A. Oiling mark: The qualified steel is oiled to prevent corrosion, and it can be marked according to user requirements.

B. Leveling and milling: The flat steel anvil machine is used to curl the original, and then the steel plate is milled on both sides by the milling machine to meet the requirements of plate width, plate edge parallelism and groove shape.

C. Shearing forming: roll the steel plate production line into a tube shape along the spiral outer edge.

D. Butt welding: The advanced double-sided submerged arc welding process is used for pre-welding, internal welding and external welding. Use plasma feet to cut welded steel pipes to specifications.


How to improve the stability of SSAW steel pipe?

After SSAW steel pipe is produced, it should be stored. If no measures are taken to maintain its stability, it will rust and corrode. So today we will talk about how to increase the stability of spiral welded pipes.


Generally speaking, we have adopted the following methods:

Small and medium-sized steel, wire rod, rebar, medium-diameter steel pipe, metal wire, steel wire rope, etc., can be stored in a well-ventilated shed, but the upper part of the cargo must be covered, and the lower part of the cargo must be covered with bedding. The bottom of the cargo.

Some small steel profiles, thin steel plates, steel strips, silicon steel sheets, small-diameter or thin-walled steel pipes, various cold-rolled or cold-drawn steels, and high-priced, corrosion-prone metal products. Store in a warehouse.

The floor or warehouse for storing spiral steel pipes should be clean and easy to drain. Keep away from factories and mines that produce harmful gases or dust. We also need to remove weeds and all debris to keep the steel on the ground clean.

Large-scale structural steel, steel rails, large-diameter steel pipes, forgings, etc. can all be piled up.

In the warehouse, SSAW steel pipes should not be stacked with materials that are corrosive to steel such as acid, alkali, salt, cement, etc. Different types of steel should be stacked separately to prevent confusion and contact corrosion.


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