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Knowledge of erw line pipe
With the rapid development of economy and the continuous improvement of the energy demand, the pipeline as the oil and gas resources has developed in recent years. A number of medium-caliber ERW line pipe unit was completed and put into operation.ERW line pipe has been widely used in the oil and ...Read more -
High-strength cold-formed structural steel defect
High-strength cold-formed structural steel defect Roll forming process is a very complex process, if the design is unreasonable, in the debugging process will appear wavy edges, pocket wave longitudinal bending, folds the corners, cracks and distortions deformation defects, which are often in deb...Read more -
Large-diameter LSAW Steel Pipe Production Process
Large-diameter LSAW Steel Pipe Production Process Large-diameter DSAW steel pipe production process mainly explained: 1. plate probe: used to manufacture large diameter LSAW steel pipe joints straight after entering the production line, the first full-board ultrasonic testing; 2. Milling: Milling...Read more -
Inner coating of gas pipeline
Inner coating can greatly improve pipeline capacity, both to prevent corrosion, reduce the role of the pumping costs. Improving gas flow within the coating technology development updates, has become the main means of transport in major companies to increase the amount. Significantly reduce the fr...Read more -
How to deal with the defects of cold drawn steel tube when colding
1, Cold drawn steel pipe can lead to material lattice dislocations and other microscopic defects and surface roughness is increased, and precipitation-induced martensite and carbides. Such as cold austenitic steels exhibit increased magnetic phenomena. 2, Resulting in the material lattice disloca...Read more -
Flexible composite high pressure pipeline
Flexible composite high-pressure pipelines is a polymer composite material made of a certain high-intensity, high pressure, corrosion, fouling resistance, friction coefficient and good insulation, good flexibility and long life of an oil and gasindustrial pipe fittings. Flexible Composite press...Read more -
Difference Between Carbon Steel Pipe and Mild Steel Pipe
Technically, carbon steel pipe and mild steel pipe aren’t different types of metal at all. Mild steel is carbon steel. (Technically, all steel is “carbon steel,” since carbon is the difference between iron and steel. Carbon steel is alloyed with up to 2% carbon. What we r...Read more -
Welding technology and production method of large-diameter straight seam steel pipe
1. Control of the weld gap The strip steel is sent to the welded steel pipe unit, after rolling by multiple rollers, the strip steel is gradually rolled up to form a round tube blank with an open gap, and the reduction of the squeeze roller is adjusted to control the weld gap to 1~3mm, And make t...Read more -
Length description of large diameter steel pipe
1. Normal length (also called non-fixed-length length): Any length that is within the length specified by the standard and no fixed length is required is called normal length. For example, the structural pipe standard stipulates hot-rolled (extruded, expanded) steel pipe 3000mm~12000mm; cold draw...Read more -
Protection method for back side of weld seam of argon arc welding of stainless steel pipeline
Protection method for back side of weld seam of argon arc welding of stainless steel pipeline 1. The tube is filled with argon for protection For argon arc welding of stainless steel pipes in petrochemical plant engineering, the method of filling the pipe with argon is generally used to prevent o...Read more -
Laying knowledge of thin-walled stainless steel pipes
When laying thin-walled stainless steel pipes, they should be installed after the civil works are finished. Before installation, first, check whether the position of the reserved hole is correct. When laying thin-walled stainless steel pipes, the distance between fixed supports should not be grea...Read more -
Main points of processing technology of large diameter straight seam steel pipe
①The large-diameter square tube, tooth shape, and pitch of the wire head of the processed steel reinforcement thread are consistent with the tooth shape and pitch of the connecting sleeve, and the matching gauge has passed the inspection. ②When processing reinforced threads, water-soluble cutting...Read more