Welding Equipment and Maintenance Methods of Crusher

Before welding the crushing equipment, you should pay attention to the following tips.
First, you should thoroughly clean the parts to be welded before welding.
Second, the effect of hot welding is better than the effect of cold welding. Therefore, when the major parts are welded, you may try to use the hot welding. You can heat the weldment to 100 ° C to 700° C in advance.
Third, in the conditional case, you should use downhand welding which will be good for the quality of the weld and is conducive to the operation.
Forth, electrode diameter and current size of the welding rod should be selected depending on the thickness of the weldment, the surrounding temperature and welding location. The model of the welding rod should be selected according to the materials of the welment and related technologies.
The most common method of the weld is the vibrating surfacing and carbide hardfacing method. The practice has proved that using the high current for welding can improve the quality of welding and speed the welding. But the current should not be too high. Sometimes, low current is also be required. The overcurrent will cause the overheating of the welding rod core. The   covered electrode will be dropped early, which will increase the spatter and burning and reduce the stability of the arc so that the welding becomes difficult. At the same time, both sides of welding will be undercut. The roots will be too thin and burn easily. For the alloy steel, if the metal structure is overheating, the metal of the weld zone is perishable and the mechanical strength is reduced. If the current is too small, the penetration depth will be not enough. It is also easily to lead to impermeable weld and bad melting. At the same time, due to the small heat of the arc, the condensation of the melt injection is rapid, which will form the weld central residue and stomata.
When the impact crusher is required, you should be strict with the implementation of the operation law of the equipment, maintenance procedures and planned maintenance system to ensure the maintenance quality. Any sloppy thinking will bring loss and impact of different level. The contact of mating surfaces of the journal and the bearing is poor will cause uneven load distribution of unit area and an increase of additional load to accelerate the wear parts. Therefore, we must conscientiously implement the maintenance of equipment, really do good job in the equipment use, care and maintenance, inspect and repair the crusher in a timely manner in order to reduce the wear and tear of parts and extend the service life of the machine.

Impact breaker : http://www.hxjqcrusher.com/Impact-crusher.html
Rotary kiln : http://www.mine-crusher.com/rotarykiln.htm