What standards are used for welding construction machinery? What kind of established and comprehensive quality assurance system is in place?
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What is the welding quality system for construction machinery such as loaders and excavators? What standards are used in the welding field? I hope everyone can give me lots of guidance.
There’s a lot of information available online about welding, and I have quite a bit as well; I can give it to you if you need it. Generally, there are no specific requirements for welding in construction machinery, other than meeting the standards for **steel structure welding. For major construction machinery, low-alloy steel grades are the most common; it is sufficient to meet the corresponding welding process requirements. Second is the assembly accuracy; welded parts often have residual stresses and deformation. Pay attention to this.
Reduce noise and emissions, and improve environmental protection metrics. As environmental awareness grows among people, it has become urgent to reduce the noise and emissions produced by loaders. Many large cities have established standards for the noise and emissions of motor vehicles, and construction machinery that does not meet these emission standards will be restricted from being sold in those areas.