Hardfacing repair, online construction and offline construction

Online construction
Do not have to remove worn grinding roller or lining plate, it should be welded on site. The advantages of this method is to save replacement cost, but disadvantage is that if the workload is too heavy, shut down time will be extended, so that will increase production losses, non - ideal online construction environment. Moreover, we can not make comprehensive examination on the worn base plate, increase the possibility of fracture (in construction or during operation). Only suitable for surface spalling or slag grinding (short welding cycle and small workload).

Offline construction
Remove worn grinding roller or lining plate and send them to hardfacing factory, this will increase replacement costs but really has many advantages:
1.No matter how big the welding workload, offline construction will not affect the shutdown time, and will not cause any unnecessary loss, detailed examination is available.
2.Offline construction quality can be guaranteed,comprehensive construction technology and technical can ensure roundness and balance of the grinding roller or grinding liner, also help to save energy.
3.Wear resistant layer is very important, so correct construction process and environmental conditions is also very important, we should avoid such risks when we select ingredients and processing method.