The strength of the flange weld must be at least the strength of the base material:
Stamping elbow is the first seamless elbow used in the forming process of mass production. At present, the elbows of specifications commonly used in production have replaced thermal or other forming processes, but in some specifications, elbows are less The production volume and wall thickness are too thick or too thin. Before the polymer binder powder coating is gelled and fused, the polyethylene layer is used and bonded outside the three layers as a whole; its role is to seal the two flanges in the middle. Two-thirds of the earth's surface is covered by water, but 97% of the water reserves seawater and brackish water, which is necessary for desalination. Therefore, seawater desalination and rapid development have been developed. According to the size of the reducer, it is divided into one pressing or multiple stamping forming. Consider the requirements of the production process or the convenience的制造、运输、安装lation and maintenance. Especially since 2005, many developing countries, such as India and Vietnam, have joined the competition trend of the forging industry, making the development of Dingxiang forging enterprises face new growth pressure tests and market competition under varying degrees of influence. Materials cannot be made, and each piece of the whole has only standard certification.
The strength of the flange weld must be at least the strength of the base material. The appearance is very new and much older than the original. Carbon steel stamping elbow is used to connect two pipes of the same nominal diameter, turning the line 90 degrees. The preheating temperature is generally not more than 700-700 degrees for welding low-carbon structural steel according to the selection of the workpiece section and material.