Maintenance methods for anti-corrosion of seamless steel pipes

Maintenance methods for anti-corrosion of seamless steel pipes

Seamless steel pipe is a type of pipeline that is resistant to weak acid substances such as air and steam, and has good corrosion resistance. However, if the seamless steel pipe is placed in a strong alkali or acid environment, it will be corroded. Therefore, we need to take some anti-corrosion maintenance measures for it. Next, we will introduce the maintenance measures for anti-corrosion of seamless steel pipes:

When cleaning seamless steel pipes, do you use substances containing weak acids for cleaning? I wonder if you have paid attention to the content of acids, which not only causes secondary pollution to the environment but also has a certain impact on the seamless steel pipes. After cleaning, you should use clean water to wipe and avoid using strong alkaline substances to clean some oil stains, as this can affect the smoothness of seamless steel pipes, A phenomenon of dullness on the surface. The placement should also be able to be in a dry environment.

1. Seamless steel pipes are widely used. The 2PE anti-corrosion steel pipe is made of a whole piece of metal and has no joints on the surface, which is called seamless steel pipe. According to production methods, seamless pipes are divided into hot rolled pipes, cold rolled pipes, cold drawn pipes, extruded pipes, top pipes, etc. Q235b spiral steel pipe is a type of seamless pipe. The manufacturing method is the same as seamless pipes, but there are strict requirements for the steel grade used in the manufacturing of steel pipes. According to the usage temperature, it can be divided into two types: general boiler tubes and high-pressure boiler tubes. Seamless steel pipes for general purposes are rolled from ordinary carbon structural steel, low alloy structural steel, or alloy structural steel, with the highest yield and mainly used as pipelines or structural parts for conveying fluids.

2. Supply is divided into three categories based on different purposes: A. Supply is based on chemical composition and mechanical properties; B. Supplied according to mechanical properties; C. Supply according to hydraulic test. The epoxy resin anti-corrosion steel pipe substrate undergoes complex physical and chemical reactions with the molten plating solution, forming a corrosion-resistant zinc iron alloy layer with a compact structure. The alloy layer is integrated with the pure zinc layer and the steel pipe substrate. Therefore, it has strong corrosion resistance. Steel pipes supplied in categories A and B, if used to withstand liquid pressure, must also undergo hydraulic testing.

3. There are various types of seamless pipes for specialized purposes, such as seamless pipes for boilers, seamless pipes for chemical power, seamless steel pipes for geology, and seamless pipes for petroleum.

Seamless steel pipes have a hollow cross-section and are widely used as pipelines for transporting fluids, such as oil, natural gas, coal gas, water, and certain solid materials. Compared with solid steel such as round steel, steel pipes have a lighter weight when their bending and torsional strength are the same, making them an economical (j ī Ng j ì) Cross section steel.

It is widely used to manufacture structural parts and Machine element, such as oil drill pipe, automobile transmission shaft (transmission shaft composition: shaft tube, expansion sleeve and universal joint), bicycle frame; steel scaffolding used in construction, etc. Circular parts are made of steel pipes, which can improve the utilization rate of materials, simplify the manufacturing process, save materials and processing hours. Steel pipes have been widely used for manufacturing.