What are the surface treatment methods of steel pipe?

1, shot blasting rust removal: through the high power motor drive blade high-speed rotation, so that the steel sand, steel shot, iron wire section, minerals and other abrades under the action of centrifugal force on the surface of the steel pipe spraying and throwing treatment, on the one hand, all clean rust, oxide and dirt, on the other hand, the steel pipe under the action of abrasive impact and friction force, to achieve the required uniform roughness.

2. Pickling: Common pickling includes two methods: chemical and electrolysis. But the pipe only uses chemical pickling. Chemical pickling can achieve the corresponding cleanliness and roughness of the steel pipe surface, convenient for the subsequent anchor line. Usually used as retreatment after shot peening (sanding).

3, cleaning: straight seam steel pipe surface adhesion of grease, dust, lubricants, and things, usually using solvent, or emulsion to clean the surface. However, the rust, oxide skin, and welding slag on the surface of the steel pipe can not be cleaned off, and other treatment methods are needed.

4, tool rust removal: steel pipe surface oxide skin, rust, and welding slag, can be used to clean and polish the surface treatment. Tool derusting can be divided into manual and power. Manual tool derusting can reach the Sa2 level, and power tool derusting can reach the Sa3 level. If the surface of the steel pipe is attached with particularly firm oxide skin, it may not be able to be cleaned with the help of tools, so it is necessary to find other methods.

The steel pipe is widely used in tap water engineering, the petrochemical industry, the chemical industry, the electric power industry, agricultural irrigation, and urban construction, and is one of 20 products in our country. For liquid transport: water supply, drainage. For gas transportation: gas, steam, liquefied petroleum gas. For structure: as a pile pipe, as a bridge; Pipe for a wharf, road, building structure, etc. In order to improve the life of the oil pipe, it is usually necessary to carry on the surface treatment, in order to facilitate the large straight seam steel pipe and the solid combination of the layer. Common treatment methods are cleaning, tool rust removal, pickling, and shot peening rust removal four categories. Shot peening is an ideal treatment for pipe rust removal. Generally, shot peening is mainly used for the inner surface treatment of steel pipe, while shot peening is mainly used for outer surface treatment of steel pipe.

Cangzhou Shenlong Pipe is specialized in the production of steel pipe and pipe fittings, product quality control is strict, fast delivery, is the qualified supplier of petrochina, BP oil.