News
-
How to improve the wall thickness accuracy of reinforced 3pe anti-corrosion steel pipes
There are many applications of reinforced 3pe anti-corrosion steel pipes. However, due to the low wall thickness accuracy of reinforced 3pe anti-corrosion steel pipes, there is a phenomenon of uneven thickness, which will have a great impact on the performance of reinforced 3p...Read more -
Reasons for uneven anti-corrosion thickness of 3PE anti-corrosion steel pipe
The industry standard SY/T0413-2002 does not stipulate the uniformity of the thickness, it stipulates the minimum thickness value of the coating, but it is required that the minimum thickness value of the coating cannot be lower than the thickness value of the low point, not t...Read more -
How to carry out anti-corrosion treatment of spiral steel pipe for water delivery
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...Read more -
Submerged arc steel pipe welding control measures and forming methods
Submerged arc steel pipe welding control measures: Submerged arc steel pipe has become the steel pipe for large-scale oil and gas transmission projects at home and abroad because of its large wall thickness, good material, and stable processing technology. In large-diameter su...Read more -
Application of straight seam steel pipes in pressure pipelines
1. Definition of straight seam steel pipe pressure pipe: By definition, straight seam steel pipe pressure pipe should include all straight seam steel pipe pipes that use pressure to transport gas or liquid. From the point of view of production, it follows the name of a straigh...Read more -
Causes of Uneven Wall Thickness of Spiral Seam Submerged Arc Welded Steel Pipe
The wall thickness of the spiral seam submerged arc welded steel pipe is uniform, it looks good, the force is uniform, and it is durable. The wall thickness of the spiral seam submerged arc welded steel pipe is uneven, and the steel pipe is unevenly stressed. A phenomenon that...Read more -
What are the casting measures of stainless steel pipe fittings
1. Since the casting shrinkage of stainless steel pipe fittings is much higher than that of cast iron, to prevent shrinkage cavities and shrinkage defects in castings, measures such as risers, cold iron, and subsidies are mostly used in the casting process to achieve sequentia...Read more -
Details of high frequency welding of straight seam steel pipe
High-frequency welding process: Straight seam steel pipe is a steel pipe made by rolling a long strip of a certain specification into a round pipe through a high-frequency welding unit and welding the straight seam. The shape of the steel pipe can be round, square, or irregula...Read more -
Internal anti-corrosion treatment method of large-diameter spiral steel pipes
The construction of cement mortar fabric should usually be carried out after the spiral steel pipe is laid, the pressure test is qualified, and the soil is compacted according to the design requirements. Due to the small rigidity of the steel pipe and the thin wall, the pipeli...Read more