In industrial pipes, the use area of butt welded flange connections is extremely common. In the family life, the pipe diameter is small, and is low voltage, can not see the butt welded flange connection. If you are in a boiler room or processing site, there are flanged pipes and equipment products everywhere.
Butt welding flange production details
The butt welded flange connection is convenient to use and can bear relatively large resistance. For 304 butt welding flanges, the processing materials are not the same according to the different levels of resistance, from low-voltage asbestos gaskets, high-voltage asbestos gaskets to metal gaskets.
In the actual processing and development of the welding flange, the use of different forms and processes to carry out processing and processing, according to the form and working principle of the process, can produce important value and effect on different levels, and add the corresponding factors in the actual processing, and then increase the characteristics and value of carbon steel flange, reflecting the better use characteristics and value.
In the specific production process, the corresponding performance parameters and regulations are used to carry out processing and application, to ensure that the correct use and promotion can be carried out in accordance with the corresponding form and working principle, while the corresponding process form and working principle are used to carry out processing and welding, to ensure the reliable quality of the butt welded flange in use.
It is necessary to cut the steel into strips along the rolling direction and butt weld it into a circular ring according to the bending process. At the same time, the steel surface should be generated with a ring cylinder, and the steel plate material can not be machined into butt welded flange with neck.
Technical knowledge of butt welding flange
The butt welded flange is manufactured by forging or forging rolling technology. And if you want to use steel plate or steel material for manufacturing, it must meet these requirements. The butt welded flange must be tested by ultrasonic inspection, and there should be no layered defects after inspection.
It is necessary to cut the steel into strips along the rolling direction, weld it into a circular ring through the bending process, and at the same time, the steel surface is formed into a ring cylinder, and the steel plate material can not be machined into a butt welded flange with neck.
For the butt weld of the ring, it is necessary to adopt the form of full penetration weld, and the butt weld of the ring must be subjected to post-welding heat treatment, and at the same time, 100% ray or ultrasonic flaw detection test should be carried out
And the radiographic inspection results should meet the requirements of JB4730 Level II, and the ultrasonic inspection results of welded flanges must meet the requirements of JB4730 Level I standards
