Selection of ordinary alloy structural steel
Pulished on Jan. 14, 2022
The tensile strength of ordinary alloy structural steels, especially the qufu tensile strength is much higher than that of ordinary carbon structural steels with the same carbon content, and it has g...
Ultrasonic detection of transverse crack
Pulished on Jan. 07, 2022
Transverse crack has great harm, compared with other defects, it is more difficult to detect, easy to miss, which is the key is the identification of defect properties in ultrasonic inspection.This ...
How do you make those fish-scale welds that are so beautiful?
Pulished on Dec. 31, 2021
shanghai qianshan piping technology company ( QSPT ) provides pipe spool fabrication line, cutting equipments, beveling equipments, fitting up equipments, handling equipments, welding equipments.
Operation technique of argon arc welding (2)
Pulished on Dec. 27, 2021
Argon arc is a kind of operation with both left and right hands at the same time, which is the same as drawing a circle with the left hand and drawing a square with the right hand in our daily life. ...
