Industrial News

  • Linear defects in steel

    Linear defects in steel

    Steel tube as an inside surface of the tube in the process of hot-rolled wear plug fatigue caused by wrinkling of the short and shallow scratches or the inner tube causes the surface roughness, the system in the subsequent pulling process, the existence of the inner wall of the small tube former ...
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  • Friction factor of spiral welded pipe

    Friction factor of spiral welded pipe

    Spiral welded pipe friction adhesion theory is now widely accepted, in the static friction, the actual contact area is proportional to the load. And when the sliding friction, we must consider the presence of shear force, then, increasing spiral steel actual contact area results from the normal l...
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  • Arc welding

    Arc welding

    Arc welding refers to arc supply heating energy, so that the workpiece to fuse together to achieve atomic indirect co-welding method. Arc welded is the most widely used welding method. According to the statistics of the number of industrial countries, arc welding in the welding of total productio...
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  • Duty coating

    Duty coating

    Heavy duty coating refers to the relatively conventional anti-corrosion coatings, the corrosion can in a relatively harsh environment applications, and has to achieve a longer protection than conventional anti-corrosion coating of a class of anti-corrosion coatings. Features of heavy-duty coating...
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  • ASME B36.10 standards

    ASME B36.10 standards

    ASME is the registered trademark of the American Society of Mechanical Engineers. Scope This standard covers the standardization of dimensions of welded and seamless wrought steel pipe for high or low temperatures and pressures. This word pipe is used as distinguished from tube to apply to tubula...
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  • Application of high-precision cold drawn tubes in China

    Application of high-precision cold drawn tubes in China

    China’s high-precision cold drawn tube, the first to be widely used in the coal industry, and now it has been extended to the manufacturing engineering industry, oil, cylinder, cylinder and piston rod. Drawing quality, efficiency, more and more high, production is also increasing, with the ...
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  • How to solve the deformation problem of spiral seam submerged arc welded steel pipe

    How to solve the deformation problem of spiral seam submerged arc welded steel pipe

    The spiral seam submerged arc welded steel pipe is drilled in rotation and begins to enter the soft formation. Under the action of the tri-cone, the drill first produces elastic shear deformation of the stratum and then is removed under the pressure of the tri-cone. In the simulated environment, ...
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  • Working principle of spiral seam submerged arc welded steel pipe

    Working principle of spiral seam submerged arc welded steel pipe

    The spiral seam submerged arc welded steel pipe is drilled in rotation and begins to enter the soft formation. Under the action of the tri-cone, the drill first produces elastic shear deformation of the stratum and then is removed under the pressure of the tri-cone. In the simulated environment, ...
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  • The difference between hot simmering elbow and cold simmering elbow

    The difference between hot simmering elbow and cold simmering elbow

    The process is as follows: After the straight pipe is cut, the induction loop is put on the part of the steel pipe to be bent through the bending machine, and the pipe head is clamped by the mechanical rotating arm, and the induction loop is passed into the induction loop to heat the steel pipe. ...
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  • What is the difference between cold drawn steel pipe and hot rolled steel pipe

    What is the difference between cold drawn steel pipe and hot rolled steel pipe

    (1) The difference between hot working and cold working: hot rolling is hot working, and cold drawing is cold working. The main difference: hot rolling is rolling above the recrystallization temperature, cold rolling is rolling below the recrystallization temperature; cold rolling is sometimes he...
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  • Technical characteristics of double-sided submerged arc welding spiral steel pipe

    Technical characteristics of double-sided submerged arc welding spiral steel pipe

    1. During the forming process of the steel pipe, the steel plate deforms evenly, the residual stress is small, and the surface does not produce scratches. The processed steel pipe has greater flexibility in the size range of steel pipes with the diameter and wall thickness, especially in the prod...
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  • Heat treatment technology of oil casing

    Heat treatment technology of oil casing

    After the oil casing adopts this heat treatment method, it can effectively improve the impact toughness, tensile strength, and anti-destructive performance of the oil casing, ensuring good value in use. Petroleum casing is a necessary pipe material for drilling oil and natural gas, and it needs t...
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