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Pipe cap
Pipe cap refers to weld on the pipe end or installed outside the pipe thread to cover wall pipe fittings, which is used to seal piping and the function is the same as the tube wall. Closure phase in the form of close, only the blind flange can be sealed, sealing, and welded tube cap is not detach...Read more -
Oil casing corrosion status and protection of technology trends
The oil well pipes in oil and gas fields, oil well pipes is including casing, tubing, drill pipe, drill collar and kelly.Domestic oil and gas fields of oil tube and pipe main show in bad environment is : high temperature and high pressure; high chloride ion content, high salinity high content of ...Read more -
How to control laminates defects in seamless pipes
How to control laminates defects in seamless pipes, there are some measures to take. 1, to improve the structure of the plastic pipe toughness Improve the cleanliness of molten steel, to reduce harmful inclusions; increase the proportion of the slab crystal axis, to reduce the center segregation ...Read more -
GB/T8162 seamless steel pipe
GB/T8162 seamless steel pipe Application: suitable for general structure, seamless steel pipe for mechanical structure. Main produced steel pipe grade:10、20、35、45、16Mn、12CrMo、15CrMo、12Cr1MoV. Mechanical properties Standard Steel grade Tensile strength (MPa) Yield strength (MPa) Elongat...Read more -
Drawing process of precision seamless tube
Drawing process of precision seamless tube Because the hole is smaller than the size of extubation die before pulling the outer diameter of the capillary system of the (extended unplug outside), so as to make the front end of the capillary can smoothly pass through the draft hole, so that the chu...Read more -
Pickling,Performance and characteristics of seamless steel pipe
Pickling,Performance and characteristics of seamless steel pipe Pickling: wash away the surface corrosion of the substrate material and rolling the skin of steel pipe use acid . In production process of cold drawn semless steel pipe, pickling is an unique process.In order to eliminate diatomite ...Read more -
LSAW Steel Pipe Production Technology 16 Process Analysis
1.The board used to making LSAW steel pipe, steel plate into the production line after the first full plate ultrasonic inspection; 2. The edge milling: through the two edges of the steel plate edge milling machine double-sided milling, make it meet the requirements of plate, plate edge parallelis...Read more -
Making Technique of Seamless Steel Pipes
Making Technique of Seamless Steel Pipes The major making techniques of seamless steel pipes are as follows. 1. Plug Rolling Production Production equipments consist of punching machine, automatic pipe rolling mill, reeling mill, sizing mill and the reducing mill. Pierce the round tube into the ...Read more -
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