SHINESTAR STEEL GROUP CO., LTD
盛仕达钢铁股份有限公司
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Welding technology and production method of large-diameter straight seam steel pipes
by admin on 23-11-03
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...
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How to do electric welding of spiral steel pipe
by admin on 23-11-02
When using spiral steel pipes, how to do the actual operation of electric welding? Next, let’s talk to friends. Before using spiral steel pipes, it is necessary to use deoxidizers to do deoxidation work. During the operation, the number and size of debris will be reduced. It should be understood ...
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How to control the quality of high frequency welding steel pipe
by admin on 23-11-01
The main points of high-frequency welding quality control In the process of high-frequency welding of steel pipes, the control of the welding process and process parameters, the placement of the induction coil and the impedance device, etc. have a great influence on the welding quality of the ste...
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What should be done at the end of cooling of large-diameter steel pipes
by admin on 23-10-31
(1) When the cooling is over, that is, when the temperature of the surface layer and the core part are all the same, the elastic deformation of the surface layer and the core part also disappears and return to the original state. Although instantaneous thermal stress is generated during the cooli...
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What properties should the anti-corrosion layer of steel pipelines have
by admin on 23-10-30
The anti-corrosion layer of steel pipelines should have the following properties: (1) Effective electrical insulation. (2) It has good moisture-proof and waterproof properties. (3) It has muscular mechanical strength. (4) The anti-corrosion layer has good adhesion to the steel surface. (5) The ma...
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What measures can be taken to reduce the resistance of steel pipe fittings
by admin on 23-10-27
The resistance of the fluid is responsible for energy loss (i.e. drag loss). One is the resistance loss along the way caused by the viscosity and inertia of the fluid; the other is caused by the sudden expansion or contraction of the pipeline-interface, etc. The blocking and disturbance effects o...
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What are the common categories of stainless steel pipes on the market
by admin on 23-10-26
1. Production method: Stainless steel welded pipes are divided into two categories: seamless pipes and welded pipes according to the production method. Seamless steel pipes can be divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, and extruded pipes. Cold-drawn, cold-rolled It is...
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Thin-walled stainless steel pipe construction and installation
by admin on 23-10-25
1) Thin-walled stainless steel pipes and fittings should not be in direct contact with cement, cement mortar, and concrete. When the pipeline is concealed, anti-corrosion tape should be wrapped around the outer wall of the pipe or plastic-coated thin-walled stainless steel pipe should be used. 2)...
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What requirements should be met for weld repair of pressure steel pipes
by admin on 23-10-24
(1) Before repair, the causes of steel pipe defects should be analyzed and corresponding repair measures should be proposed. (2) When reworked steel pipes require repair welding, qualified welding processes should be used and welded by qualified welders. (3) When the number of repairs for the sam...
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Several forms of steel rolling
by admin on 23-10-23
According to the deformation principle of rolled parts, steel rolling is generally divided into the following three forms: *.1 Longitudinal rolling: the running direction (axis) of the rolled piece is perpendicular to the axis of the roll, and the rolled piece moves in a straight line; production...
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What is a stainless steel profile
by admin on 23-10-20
Stainless steel profiles are stainless steel materials with different cross-sectional shapes obtained by hot melting and extruding stainless steel rods. The production process of stainless steel profiles mainly includes three processes: casting, extrusion, and coloring. Among them, coloring mainl...
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Embroidery removal technology for submerged arc steel pipes
by admin on 23-10-19
Introduction to the embroidery removal technology of submerged arc steel pipes: During the anti-corrosion construction process of oil and gas pipelines, the surface treatment of large-diameter submerged arc steel pipes is a key factor that determines the anti-corrosion service life of the pipelin...
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