Product News

  • What are the benefits of hot dip steel pipe?

    What are the benefits of hot dip steel pipe?

    What are the benefits of hot dip steel pipe? 1. The superior anti-static performance of hot dip plastic steel pipe: by adding anti-static agent to the formulation, the internal and external surface resistance can be achieved and exceed the national industry standards 2. Flame-retardant properties...
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  • Application of pipeline eddy current testing

    Application of pipeline eddy current testing

    Application of pipeline eddy current testing Depending on the shape of the test piece and the purpose of the test, different types of coils can be used. There are usually three types of through-type, probe-type and insertion-type coils. Pass-through coils are used to detect tubes, rods and wires....
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  • Standard for industrial pipeline anti-corrosion layer, heat insulation layer and waterproof layer

    Standard for industrial pipeline anti-corrosion layer, heat insulation layer and waterproof layer

    Standard for industrial pipeline anti-corrosion layer, heat insulation layer and waterproof layer All metal industrial pipelines require anti-corrosion treatment, and different types of pipelines require different types of anti-corrosion treatment. The most common anti-corrosion treatment method ...
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  • Temperature problems in the production of straight seam steel pipes

    Temperature problems in the production of straight seam steel pipes

    In the process of producing straight seam steel pipes, the temperature must be strictly controlled, so as to ensure the reliability of welding. If the temperature is too low, it may cause that the welding position cannot reach the temperature required for welding. In the case where most of the me...
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  • Lubrication problems in the production of straight seam steel pipes

    Lubrication problems in the production of straight seam steel pipes

    Straight seam steel pipes need to use a product to match in the production process, that is, a glass lubricant, which was produced with graphite before using the glass lubricant, because at that time there was no such product in the market. Therefore, graphite can only be used as a lubricant, but...
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  • Adjustment and Control of the Position of High Frequency Induction Loop of Straight Seam Steel Tube

    Adjustment and Control of the Position of High Frequency Induction Loop of Straight Seam Steel Tube

    Straight seam steel tube excitation frequency is inversely proportional to the square root of capacitance and inductance in the excitation circuit, or proportional to the square root of voltage and current. As long as the capacitance, inductance or voltage and current in the loop are changed, the...
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  • Factors affecting the accuracy and resolution of oil casing wall thickness detection

    Factors affecting the accuracy and resolution of oil casing wall thickness detection

    The API standard stipulates that the inner and outer surfaces of the imported and imported petroleum casings must not be folded, separated, cracked or scratched, and these defects should be completely removed. Petroleum casing must be fully covered for automatic wall thickness detection. Currentl...
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  • Preparation before installation of 3PE anti-corrosive steel pipe

    Preparation before installation of 3PE anti-corrosive steel pipe

    Before embedding 3PE anti-corrosion steel pipe, you need to clean up the surrounding environment first, and conduct technical tests on the commanders and mechanical operators who participate in the clean-up work. At least one line of defense personnel should participate in the clean-up work. It i...
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  • Why should pipelines be pickled, degreased and passivated?

    Why should pipelines be pickled, degreased and passivated?

    It is mainly aimed at steel pipes, which are prone to corrosion reactions, and there is a certain hidden danger to equipment damage after corrosion. After removing all kinds of oil, rust, scale, welding spots and other dirt, it can greatly improve the corrosion resistance of steel. If there are d...
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  • Three processes for forging pipe fittings

    Three processes for forging pipe fittings

    Three processes for forging pipe fittings 1.Die forging For small size pipe fittings such as socket welding and threaded tees, tees, elbows, etc., their shapes are relatively complicated, and they should be manufactured by die forging. The blanks used for die forging should be rolled profiles, su...
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  • Straight seam steel pipe expansion technology

    Straight seam steel pipe expansion technology

    Straight seam steel pipe expansion technology 1. Preliminary rounding stage. The fan-shaped blocks are opened until all the fan-shaped blocks are in contact with the inner wall of the steel tube. At this time, the radius of each point in the steel tube within the step range is almost the same, an...
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  • Large-diameter steel pipe forming method

    Large-diameter steel pipe forming method

    Large-diameter steel pipe forming method 1. Hot push system expansion method Pushing and expanding equipment is simple, low-cost, easy to maintain, economical and durable, flexible product specifications change, if you need to prepare large-caliber steel pipes and similar products, only need to a...
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