The Function And Processing Method Of Butt Welding Flange

The main function of welding flange is divided into the following categories:

1, pipeline failure, easy to disassemble detection.

2, connecting the pipe and make the pipeline to maintain good sealing performance;

3, if a section of the pipeline problems, to facilitate the replacement of a section of the pipeline;

Butt welding Flange in the production and use of a certain technical requirements and technical parameters, in accordance with a certain way and methods of production and processing:

1, the butt weld of the ring should be after welding heat treatment, and for 100% X-ray or ultrasonic flaw detection, and radiographic inspection in line with JB4730 II requirements, ultrasonic flaw detection in line with the JB4730 level I requirements. Welding flange using a certain welding standards and technical production and processing, in line with the country's corresponding production standards and requirements.

2, the production of welding flange steel plate should be ultrasonic flaw detection, no delamination defects, to ensure good quality and performance problems, according to a certain quality requirements of production and testing, to ensure the production and use of steel plate without quality problems;

3, should be in the direction of steel rolling cut into strips, by bending to weld into a ring-shaped, and the surface of steel to form a ring on the cylinder surface. When producing the Hafaran, the steel plate direct machine is not used to process the neck flange, and a certain process is made and processed.

Butt welding Flange can greatly save space, reduce the weight, and it can ensure that the joints do not appear leakage phenomenon, with very good sealing performance. The size of the weld flange is reduced because the diameter of the seal is reduced, which reduces the section of the sealing surface. Secondly, the flange gasket has been replaced by the sealing ring, in order to ensure the sealing face matching.