the service life of stainless steel elbow made by Xinyi simmer elbow manufacturer can be expressed as follows: D is the diameter of the elbow and R is the radius of curvature. *The commonly used elbow is 1.5D. Generally, the diameter is above DN600, and the steel butt welded seam elbow is quite different from the ordinary stamping elbow from the appearance. For example, because the surface is hot pressed, there will be a dead skin on the surface, that is, oxidized corrosion. Secondly, there will be two welds with obvious protrusion. If it is flaw detection welding, these two welds can be polished off to make them very smooth and beautiful in appearance. There are also different welding processes for steel butt welded elbows. One is flaw detection welding and ordinary welding. Flaw detection welding is to make film or X-ray inspection. Whether there is air hole in the weld, the air hole will affect the pressure on the weld. Ordinary welding is not to do any treatment and inspection, the general use of ordinary welding customers are used in no pressure, or very low pressure pipeline, generally less than 10 kg pressure will be used, as a professional manufacturer. ]Introduction to the processing method of stainless steel elbow pipe fittings [what should be paid attention to when stamping elbow planing and milling [specification for design of large diameter butt welded elbow elbow elbow] data of steel plate butt welded elbow need some special raw materials for production, these raw materials should be strictly selected and controlled, and the raw materials should be selected properly, otherwise the high-pressure elbow produced will not have quality assurance. Application of butt welding elbow made of steel plateMaterials are a large class of new materials with special electrical, acoustic, thermal, mechanical, chemical and biological properties. They are the main basic data for high-tech areas such as energy technology and national defense construction. At the same time, they also play a major role in transforming some conservative industries, such as agriculture, chemical industry, building materials, etc. The data of butt welding elbow made of china hvac duct forming machine steel plate is special, which shows the unique application treasure in a certain area, and affects the development of other industries to a certain extent. Purpose: to connect two pipes with the same nominal diameter to make the pipe 90 degree turning head. 1. Divide carbon steel, cast steel, alloy steel, stainless steel, aluminum alloy, plastic, argon leaching, PPC, etc. by material. Main difference between stainless h beam welding line steel elbow and elbow [introduce punching method of stainless steel elbow [10 / 29] brief introduction of elbow! Elbow manufacturers in the pipeline system, elbow is to change the direction of the pipe fittings. According to the angle, there are three kinds of commonly used 45 ° and 90 ° 180 ° elbows. In addition, other abnormal angle elbows such as 60 ° are also included according to the engineering needs. Weldedelbow is a kind of sanitary pipe fitting, which belongs to elbow type. Alloy thick wall elbow is a kind of steel elbow formed by hot pressing or forging. Its connection form is directly butt welding the elbow with steel pipe. The main manufacturing standard of welded elbow is GB / TGB / tasmeb16.shshshhg/thg/tsy/t05010. The thickness of common alloy thick wall elbow is 1.5-2 thick. It is used in food machinery and small flow pipeline. The surface is often polished by mirror. commonThe industrial standards include ISO, DIN, IDF, 3a, SMS, etc. Alloy thick wall elbow generally has 45 degree elbow, 90 degree elbow, 180 degree elbow and so on, the material has carbon steel, alloy steel and stainless steel. Elbow materials are cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals and plastics. It refers to the change of wall thickness along the length of the pipe. There are many processing methods for stamping elbow pipe fittings. Many of them belong to the category of mechanical processing, in which stamping method, forging method, roller processing method, rolling method, bulging method, stretching method, bending method and combined processing method are used. Pipe processing is an organic combination of machining and metal pressure processing. Forging method: the end or a part of the pipe is punched and stretched with a die forging machine to reduce the outer diameter. The commonly used forging machines are rotary type, connecting rod type and rolling wheel type. Stamping method: in stainless steel elbow with taper core to expand the pipe end to the required size and shape. Roller method: the core is placed in the stainless steel stamping elbow pipe, and the periphery is pushed by the roller, which is used for circular edge processing. The main types of stamping elbows are as follows: 1. Pipe fittings with flange and round edge, the former refers to the pipe end convex to the inside or outside, and the latter refers to the pipe fitting with bulge or groove in the circumferential direction of the pipe; 2. The pipe fitting with variable wall thickness of stainless steel elbow refers to the change of wall thickness along the length direction of the pipe. Qingshen large diameter welded elbow is a high-quality butt welded elbow before welding. The methods of connection with the pipe are: direct welding (common way) flange connection, hot melt connection, electric fusion connection, thread connection and socket connectionEtc. According to the production process can be divided into: welding elbow, stamping elbow, push elbow, casting elbow, butt welding elbow, etc. Other names: 90 degree elbow, right angle bend, love bend, etc.