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  • [Industry News] Surface treatment method of spiral steel pipe

    1. CleaningUse solvents and emulsions to clean the surface of steel to remove oil, grease, dust, smoothing agent and similar organic matter, but it cannot remove the rust, oxide scale, welding flux, etc. on the surface of the steel, so it is only used as an auxiliary trick in anti-corrosion producti

  • [Industry News] Spiral steel pipe production process

    Spiral steel pipe is made by rolling low-carbon carbon structural steel or low-alloy structural steel strip into a tube blank at a certain spiral angle (called forming angle), and then welding the tube seam together. It can be made with a narrower strip Steel produces large diameter steel pipes. Its

  • [Industry News] Spiral steel pipe stacking principle requirements

    1. The principle requirement of spiral steel pipe stacking is to stack according to varieties and specifications under the premise of stable stacking and ensuring safety. Different types of materials should be stacked separately to prevent muddling and mutual erosion;2. It is forbidden to store item

  • [Industry News] Comparison of advantages and disadvantages of spiral steel pipe

    Spiral steel pipe is a spiral seam steel pipe made of strip steel coils as raw material, often warm-extruded under urban pressure, spirally bent and formed by automatic double-wire double-sided submerged arc welding process for inner seam and outer seam welding. The raw materials are strip steel coi

  • [Industry News] Analysis of main application characteristics of galvanized steel pipe

    Galvanized steel pipes are widely used in construction, machinery, coal mines, chemicals, railway vehicles, automobile industry, highways, bridges, containers, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery and other manufacturing industries.   Galvanize

  • [Industry News] Main introduction of galvanized steel pipe

    Galvanized pipe, also known as galvanized steel pipe, is divided into two types: hot-dip galvanized and electro-galvanized. The hot-dip galvanized layer is thick and has the advantages of uniform coating, strong adhesion, and long service life. The cost of electro-galvanizing is low, the surface is

  • [Industry News] Welding quality assurance measures for galvanized steel pipes

    Control from five aspects: human, material, machine, law and environment.① The human factor is the focus of welding control. Therefore, before welding, a skilled welder with a welder certificate should be selected, and necessary technical training and clarification should be conducted. It is not all

  • [Industry News] Welding process of galvanized steel pipe

    There are many welding methods for galvanized steel. Generally, gas welding, manual arc welding, CO2 gas shielded welding, automatic submerged arc welding, and argon tungsten arc welding are commonly used in galvanized steel structures.Gas welding was often used for welding galvanized pipes in the p

  • [Industry News] Welding characteristics of galvanized steel pipe

    Galvanized steel is widely used in all walks of life. The advantage of using galvanized steel is to use metallic zinc that can form a dense oxide protective layer in the air to protect the internal steel structure. In the case of welding or scratching, due to the existence of the Zn-Fe galvanic

  • [Industry News] Steel prices rebound in stages

    The steel market has shown signs of rebounding recently after a long period of downturn. On August 3, the domestic construction steel prices rose slightly, and 22 construction steel production companies raised their ex-factory prices by 10-100 yuan/ton. The spot price of steel products in the releva

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