Welded lugs detection method and welding procedures

Welded lugs LBS / VLBS detection method
1. lug is complete;
2. The work load, vendor tag is legible;
3. lug body, rings and other components are deformed;
4. Are there mechanical damage,single girder overhead crane such as scratches, especially the strong parts of the force;
5. The wear should not exceed 10% of the cross-sectional diameter
6. Is there corrosion;
7. Is there a crack;
8. Does the welding cracks or other damage site;
Welding must, in accordance with standard EN 287 or AWS carried out by qualified professionals.
Welding procedures are as follows:
Welding Welding must start from the center of the base 1. welding;
2. Before the first execution, gantry crane china please clean solder pads and floor;
3. The welding process can not be interrupted, so as not to reduce the welding temperature.
4. Note: Do not weld to reddish coat on by heat-treated rings.