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Surface treatment of thick-wall straight seam steel pipe
The uniformity of the pipe wall of the thick-walled straight seam steel pipe will directly affect the post-processing parts. The pipe wall of the thick-walled straight seam steel pipe cannot be controlled, and the overall steel pipe cannot be strictly controlled. Small and med...Read more -
Causes of rust and corrosion of spiral steel pipes
Because spiral steel pipes are stacked outdoors, and most of them are buried in the ground when they are in use, they are easy to corrode and rust. To ensure the smooth flow of the pipes, the spiral steel pipe manufacturers must have strong corrosion resistance. . Once the pip...Read more -
What are the classifications of the coating methods of large-diameter water-conveying plastic-coated steel pipes
The coating methods of large-diameter water-conveying plastic-coated steel pipe plastic-coating equipment are divided into two categories: simultaneous internal coating and external coating, and separate internal coating and external coating. Process coating methods are also d...Read more -
The difference and use of seamless steel pipe and spiral welded pipe
Seamless steel pipes are widely used. General-purpose seamless steel pipes are rolled from ordinary carbon structural steel, low-alloy structural steel, or alloy structural steel, with the largest output, and are mainly used as pipelines or structural parts for conveying fluid...Read more -
How to clean straight seam steel pipe
The straight seam steel pipe structure can be a round pipe structure or a rectangular pipe structure according to the specific conditions of the components, supply conditions, production and processing conditions, and cost, or a mixture of the two types of steel pipes. When us...Read more -
Routine maintenance is required when using thick-walled steel pipes
Thick-walled steel pipes are widely used steel varieties. It directly affects the economic benefits and the lives of personnel. Every country in the world attaches great importance to the inspection of thick-walled steel pipes, and various non-destructive testing (NDT) methods...Read more -
The welding process of thick-walled steel pipe
Welding method: When welding thick-walled steel pipes, first clean the oil, paint, water, rust, etc. of the welding joint, and then open the groove according to the wall thickness. The gap is generally 1-1.5 times the diameter of the electrode or wire. If the groove is acciden...Read more -
What are the types of heat treatment for stainless steel welded pipes
In the production process of stainless steel welded pipe, intermediate heat treatment and finished heat treatment can be carried out. Because a bright surface without oxidation can be obtained, the traditional pickling process is eliminated. The use of this heat treatment proc...Read more -
Causes and Adjustment of the Uneven Wall Thickness of Steel Pipe
Causes and adjustment of the uneven wall thickness of steel pipes: 1. The causes of uneven wall thickness of the spiral shape are: the uneven wall thickness caused by the adjustment reasons such as the uneven rolling center line of the piercer, the inclination angle of the two...Read more