Product News
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How to make hot rolled pipe ?
Hot rolled (extrusion seamless steel pipe): round tube → heating → perforation → → three-roll rolling, rolling or extrusion → detached → sizing (or reducing) → cooling → straightening hydraulic test (orflaw) → tag → storage. Rolling seamless tube of raw materials is a round tube, tube embryos...Read more -
Physical phenomena of spiral submerged arc welded pipe
Spiral submerged arc welded pipe widely used double submerged arc welding technology, the principle: Submerged arc welding is carried out by arc welding heat, and manual arc welding is different: submerged arc welding wire is bare, no paint above submerged arc flux is indeed to be welded in advan...Read more -
On-line testing of welded pipe
Welded pipe at the factory to go through rigorous testing to ensure compliance with the provisions of pipe quality standards and user requirements. Pipe inspection items generally include: factory inspection items have the appearance quality, straightness, dimensions, and other types of weld qual...Read more -
Marine Seamless Steel Pipe
The steel pipe is very common in marine engineering. Two systems of ship and marine engineering demand roughly in three types of steel pipe: steel pipe in the conventional system, constructed with steel pipes and special purpose steel pipes. steel pipe in the conventional system. Different ship a...Read more -
Hydrostatic test of spiral welded pipe
Spiral steel pipe carrying water application to conduct a hydrostatic test, usually it is testing machine to test when trials to ensure the quality of the spiral steel pipe. Spiral steel pipe hydrostatic testing machine works: Spiral steel pipe hydrostatic testing machine during a pressure test, ...Read more -
High-pressure steel pipe production process and its simple maintenance
The main production process of high-pressure steel pipe: billet heating, perforated tube, pipe extension. High-pressure steel pipe rolling, pipe sizing, reducing pipe, cooling and finishing steel or can be said to be heated perforated steel embryo hot rolled pickling spray head cut cold drawn car...Read more