The straight seam steel pipe is a general name. The tubes that are welded in straight welding in high -frequency welding equipment are called straight steel pipes.
Among them, according to different uses, different rear road production processes (can be roughly divided into scaffolding pipes, wire sleeves, bracket pipes, fluid pipes, fence pipes, etc.) and low -voltage fluid welding pipes are a type of straight seam welded pipe. Generally, water is used. The transport of gas is tested than a hydraulic pressure than ordinary welded pipes after welding. Therefore, the price of low -voltage fluid pipes is generally higher than that of ordinary straight welded pipes; It is divided into general welded pipes, galvanized welded pipes, oxygen -blowing welded pipes, electric wire sleeves, public welded pipes, roller tubes, deep well pump pipes, automotive pipes, transformer pipes, welding thin wall pipes, welding alien pipes and spiral welding pipes.
General welded pipes: General welded pipes are used to transport low -voltage streams. They are manufactured with Q195A, Q215A, and Q235A steel. It can also be made of other soft steel that is easy to weld. Steel pipes should perform experiments such as water pressure, bending, and flattening. There are certain requirements for surface quality. Usually the delivery length is 4-10m, and the fixed ruler (or multiple ruler) is often required. There are two kinds of steel pipes, and the steel pipe is divided into two types of threads and without threading according to the end of the pipe, which is welded.
For the installation and use of straight steel pipes, it is necessary to carry out according to the actual situation, and at the same time, it is also necessary to ensure safety and quality in accordance with the operating procedures. They all have strict technical requirements. In the normal use process, the straight sewing steel pipe needs to pay attention to the following points:
1. Construction preparation before the use of straight steel pipes
The pipeline ditch should be dug, the pipeline well brick is completed, and the various types of straight seam steel pipes needed in place should be in place. All kinds of tools required, including electric hammer, electric welding machine, cutting machine, polished machine, etc. Do a series of preparations to start installation.
2. Installation of straight seam steel pipes
According to the prefabricated pipeline bracket, the pipeline positioning is performed according to the design of the drawings, then the feeding is made according to the design and site, and then the slopes are grinded with a polished machine before welding.
3. Use quality requirements
The welding seams are not allowed to welded the tubes, and the bending area is avoided. The vertical installation vertical deviation should be less than 3 mm, and the deviation of the horizontal installation should be less than 1 mm. Burning and cracking.
