In the machine tool industry, the development of welding technology has been developed with the application of welding structure of machine tool products. Metal cutting machine tools, forging machinery and casting machinery products are the main fields of welding technology application in the machine tool industry. Welding technology has also gradually developed into the leading technology in the machine tool industry, which is mainly reflected in the following aspects: (1) Some key enterprises have established welding workshops or metal structure factories with a certain scale, and established a complete welding management system, and absorbed the welding process standards of imported products. (2) Improve the welding process, from a single processing technology to a set of emerging comprehensive engineering technology from raw material pretreatment, cutting blanking, forming, welding, post-weld inspection and post-weld treatment. (3) CNC precision cutting and computer programming nesting technology has been applied. (4) Promote the application of advanced and efficient new technologies such as CO2 gas and argon-rich gas shielded or submerged arc welding. (5) X-ray flaw detection and ultrasonic non-destructive flaw detection are commonly used to stabilize the intrinsic quality of the weld. (6) The new vibration aging process has been promoted to achieve the purpose of reducing and homogenizing the residual stress of the welded structure, reducing the deformation of the welded parts and stabilizing the accuracy. At present, the main welding techniques applied in the machine tool industry have the following aspects: application of steel plate pretreatment technology; application of numerical control cutting technology; application of high efficiency welding technology such as gas shielded welding. Among them, high-efficiency welding technology such as gas shielded welding has been widely used in machine tool beds, gears, eccentric bodies, rocker shafts, cylinder blocks, pipe flanges and casings that are not processed after welding, and has become a machine tool industry. One of the main processes of welding.
Across the pond, you will find the Deutsches Institute fur Normung (DIN) flange specification, consisting of a variety of European styles which have been unified into one code for the purpose of commonality. Designation as a DIN Flange by the German Institute of Standardization assures the user of design quality the way an ASME flange would here in America. Although much less common than ANSI/ASME steel flanges in the United States, many of our international customers request flanges to these specifications for a variety of applications such as imported steel vessels, cargo ships, and other infrastructure which may consist of metric pipes/valves and European designed equipment.
The subset flanges under the DIN standard consist of the same style of flanges in the United States, including the most commonly used slip on flanges, weld neck, flanges, and blind flanges. Adapter flanges can be custom made to end user requirements for the mating of American flanges to international ones, however we find it is a much more common and easy solution to provide DIN flanges to mate to existing equipment.
The most common metric type flanges fall under the following categories:
DIN 2501 through 2503 for flat ring flanges
DIN 2512 through 2519 for alternate face flanges
DIN 2627 through 2633 for weld neck flanges
DIN 2641 through 2642 for lap joint flanges
DIN 2565 through 2569 for threaded/companion flanges
DIN 2527 for blind flanges
Slip On Flange,Pn6 So Flange,Din Cs Flange,Din Slip On Flange Hebei Welkin Pipe Fitting Manufacturing Co., Ltd , https://www.welkinpipeline.com
Main welding technology used in the machine tool industry