Pipe tee welding technology

　　Pipe tee welding technology is how to assess

　　For outside longitudinal seam of narrow gap automatic submerged arc welding methods, our company has a mature welding technology, such as: form of groove, welding parameters, welding wire, specifications, etc. For pressing pipe inner longitudinal seam, due to its inner diameter relative to the inner diameter of the drum, container and other products are much smaller, not by people like drum, container into the cylinder body to longitudinal seam welding, only with relatively small equipment for welding, according to the characteristics of the longitudinal seam welding quality, in order to ensure the Pipe tee to design drawings, process methods put forward the following requirements:

　　(1) the Pipe tee, the director of the length is not more than 1400 mm.

　　(2) up and down the tiles should be based on respective center line of the length of the assembly after welding.

　　(3) to ensure that the outside longitudinal seam submerged arc automatic welding welding leakage, the thickness of the inside back cover should be no less than 8 mm, and require a shape.

　　Manual arc welding by means of Pipe tee + narrow gap automatic submerged arc welding, welding procedure qualification of joint show that the design of groove type, the selected welding method and technological parameters are reasonable, after welding joint performance can meet the design requirements completely, can replace large-diameter seamless sPipe teel pipe manufacturing extrusion forging Pipe tee.

　　We have adopted advanced production equipment and technologies to manufacture our steel elbows and carbon steel fitting, which can not only improve product quality, but also save raw materials. Our products have high strength, good toughness and resistance to corrosion.