Endüstriyel Haberleri

  • Measuring method of end cut of steel pipe

    Measuring method of end cut of steel pipe

    At present, the measurement methods of pipe end cut in the Industry mainly include straightedge measurement, vertical measurement, and special platform measurement.  1.Square measurement A square ruler used to measure the cut slope of the pipe end generally has two legs. One leg is about 300mm in...
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  • Why is stainless steel not easy to corrode?

    Why is stainless steel not easy to corrode?

    1. Stainless steel does not rust, it also generates an oxide on the surface. The rust-free mechanism of all stainless steels currently on the market is due to the presence of Cr. The fundamental reason for the corrosion resistance of stainless steel is the passive film theory. The so-called passi...
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  • Common pipe fittings

    Common pipe fittings

    There are many types of pipe fittings, which are classified according to their use, connection, materials, and processing methods. By purpose 1. Pipe fittings for connecting pipes are: flange, joint, pipe clamp, ferrule, hose clamp, etc. 2, change the pipe direction of the pipe: elbow, elbow ...
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  • What should be done on the surface of high-frequency anti-corrosion spiral steel pipe?

    What should be done on the surface of high-frequency anti-corrosion spiral steel pipe?

    With the continuous development of China’s economy, the country vigorously develops the energy industry. Pipeline long-distance oil and gas pipelines are an important way of energy security. In the anti-corrosion construction process of oil (gas) pipelines, the surface treatment of anti-cor...
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  • How to deal with the revers of spiral steel pipe

    How to deal with the revers of spiral steel pipe

    How to deal with the revers of spiral steel pipe Along a straight line or curve or flat portion of the curved portion of sheet metal bent into upstanding flange stamping method. Flanging type:According to the nature of the deformation, it can be divided into elongated cuffs and compression type f...
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  • NDT Testing

    NDT Testing

    NDT testing means without prejudice or affect the detected object performance, not hurt at being provided to detect objects within the organization, the use of material internal structural abnormalities or defects heat, sound, light, electricity, magnetism and other reactions caused by changes to...
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  • Crack detection

    Crack detection

    Weld cracks in a pressure vessel are mostly belonging delayed cold cracking and the distribution is very broad. In the process of the pressure vessel manufacturing and field compound by special attention, but because of its “delay”, under the action of restraint stress, often in a yea...
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  • Hot forging and cold forging

    Hot forging and cold forging

    Hot forging means forging blank metal above the recrystallization temperature carried out. Features: reducing the deformation resistance of metals, thus reducing bad forging force needed to deform the material, so that greatly reduced the tonnage forging equipment; altering the structure of ingot...
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  • Effect of steel composition on the zinc coating

    Effect of steel composition on the zinc coating

    When the meter steel workpieces, the selection of steel, usually the main consideration is: the mechanical properties (strength, toughness, etc.), processing performance and cost. But for galvanized parts, the composition of the selection of materials, the quality of the hot-dip galvanizing has g...
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  • Common Arc Welding Process-Submerged Arc Welding

    Common Arc Welding Process-Submerged Arc Welding

    Submerged arc welding (SAW) is a common arc welding process. The first patent on the submerged-arc welding (SAW) process was taken out in 1935 and covered an electric arc beneath a bed of granulated flux. Originally developed and patented by Jones, Kennedy and Rothermund, the process requires a c...
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  • China Continues to Drive Crude Steel Production in September 2020

    China Continues to Drive Crude Steel Production in September 2020

    World crude steel production for the 64 countries reporting to the World Steel Association was 156.4 million tonnes in September 2020, a 2.9% increase compared to September 2019. China produced 92.6 million tonnes of crude steel in September 2020, an increase of 10.9% compared to September 2019. ...
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  • Global crude steel production increased by 0.6% year-on-year in August

    Global crude steel production increased by 0.6% year-on-year in August

    On September 24, the World Steel Association (WSA) released August’s global crude steel production data. In August, the crude steel output of 64 countries and regions included in the World Steel Association’s statistics was 156.2 million tons, an increase of 0.6% year-on-year, the fir...
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