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Industry News
How to carry out anti-corrosion treatment of spiral steel pipe for water delivery
by admin on 23-04-12
If the spiral steel pipe for water transportation is used to transport tap water or drinking water, the inner wall is usually made of IPN8710 non-toxic anti-corrosion coating, and the outer wall is made of epoxy coal tar pitch for anti-corrosion. Of course, it can also be used for inner and outer...
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Introduction to the quality process and characteristic uses of large-diameter steel flanges
by admin on 23-04-10
Large-diameter steel flange is a kind of steel flange, which is widely used and promoted in the machinery industry, and has been well received and favored by users. Large-diameter steel flanges are widely used, and the scope of use is determined according to different characteristics. They are mo...
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What are the details of thick-walled steel pipes before use
by admin on 23-04-07
The welding method of thick-walled steel pipes should be selected according to the material and wall thickness of thick-walled steel pipes. Because different welding methods have different arc heat and arc force, different welding methods have different characteristics. For example, tungsten arc ...
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Manufacturing Technology of Large Diameter Longitudinal Submerged Arc Welded Steel Pipes
by admin on 23-03-28
Large-diameter straight seam submerged arc steel pipes are mainly responsible for the pipeline transportation of marine and land oil and gas, oil and natural gas, coal, and ore pulp. The methods and characteristics of international pipe-making technology, the forming methods of large-diameter lon...
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What is the suitable temperature for welding straight seam steel pipe
by admin on 23-03-23
Welding, also known as welding, is a manufacturing process and technology that can join metal or other thermoplastic composite materials such as plastics by applying heat, high temperature, or pressure. There are three welding methods: 1. Welding. The workpiece is heated to form a molten pool. Af...
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Defects that are prone to occur in the welding zone of spiral steel pipes
by admin on 23-03-22
The defects that are easy to occur in the welding area of the spiral steel pipe include air holes, thermal cracks, and undercuts. Spiral steel pipe weld porosity not only affects the tightness of the pipe weld, causing pipeline leakage but also becomes a corrosion induction point, seriously reduc...
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