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Linear expansion of pipeline
Pipeline installed and put into operation, the temperature inside the tube is often due to the medium and ambient temperature difference generated when installing retractable.In addition, since the level of the operating temperature of the pipeline itself, will cause the telescopic pipe. Experime...Read more -
Longitudinal seam welded pipe roller bending forming
Longitudinal seam welded pipe roller bending forming generally subject to three basic bending process: open a real bend, bend freely open, closed liberal bent. As online IF normalizing process matures, more and more to Longitudinal production of large-sized, thick wall, in the direction of high-g...Read more -
Precision Seamless Pipe
Precision seamless pipe is a pipe material producing by a cold drawn process with high precision and high-quality finish. Due to the characteristics of high-precision, in precision machinery manufacturing, auto parts, hydraulic cylinders, construction (steel sleeve) industry has a very wide range...Read more -
Pipe info chat for LSAW steel pipe
Pipe info chart for LSAW STEEL PIPE 1.Specification Pipe O.D: Ф406.4～Ф1422.4mm（16-56in） Pipe Length: Max.12.2m(40ft) Wall Thickness: When the steel grade is X70, the wall thickness ranges from 6.4 to 26.4mm(0.252–1.04in); When the steel grade is lower, the wall thickness will be increase...Read more -
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