Screw propeller of briquette machine is the easiest wear part. For the beginner of wood briquettes production, there is a little difficult for them to repair it without any guidance or training. This article can provide some help.
Diameter of the head screw and second screw increase progressively. From The third screw to the end screw, diameter is same. The part that easily wear is the head and second screw. Select a good quality ordinary electrode, first step on the original screw head to increase the height of the circle, and then thicken the screw in a semi-vertical shape. After the completion, repeat the welding over the screw head until the expected requirements are met. Then use grinder for rough grinding of the welded screw head, and use the alloy powder or carbon tungsten for welding.
R angle treatment on the root of the screw prepeller head, the surface of the screw propeller head should be smooth, no cracks, no pores. This minimizes the frictional resistance in briquettes production. In general, the screw head should be replaced after 1-2 days briquette machine working, no matter the wear is serious or not.