1. Magnetic automatic cutting machine: In the case of poor steel tube ellipses, the magnetic car is walking along the wall of the tube, and the walking path changes, especially the
The spiral tube is prone to cracks in thermal treatment cooling. Pay attention to these during the production process, which can effectively avoid cracks. 1. After quenching, you s
The straight sewing steel pipe is an important process in the production of straight steel pipes. Especially for API standards with high quality requirements and oil pipes, special
The spiral steel pipe has high strength, good corrosion resistance and good plasticity and processability. Spiral steel pipes can be processed as needed to cut, bend and welded to
The spiral steel pipe is a commonly used steel pipe and has many advantages. The manufacturing process of the spiral steel pipe is unique. By rolling the steel belt into a spiral s
The steel pipe with a ratio of the outer diameter of the steel pipe and the ratio of wall thickness is called thick wall spiral pipe. It is mainly used for petroleum geological dri
1. Use the cutting machine to cut the steel pipe on demand length, and the incision should be flat. 2. Set the steel pipe rack that needs to be processed on the groove machine. 3.
The hydraulic test of the galvanized pipe should be performed in the black tube, and the vortex detection can also be used instead of the hydraulic test. Test pressure or vortex de
The standard name of the hot -dip galvanized steel pipe product is "low -voltage fluid transportation of hot -dip galvanized welding steel pipe". It is the inner and oute
1. Inspection of physical methods: The method of physical testing is to use some physical phenomena to determine or test. The inspection of the internal defects of the materials or
In order to improve the life of the pipeline, the production of the spiral steel pipe manufacturers will process it on its surface, which is also a step of production. The most com
The spiral steel pipe is made of spiral welding process. It has high strength and corrosion resistance and is suitable for various industries and construction fields. First, the sp