The purpose of the cleaning is to remove the burrs and yttrium oxide from the ferrule forgings.
When the forging burr size exceeds the technical conditions of the forging, it is ground on the grinding wheel and is generally performed before the forging is annealed.
Forgings yttrium oxide is generally carried out after annealing, there are two types of horizontal roller cleaning and blasting roller cleaning:
1. Horizontal drum cleaning: Many bearing rings of different sizes are simultaneously loaded into the horizontal drum that rotates at a speed of 20-60r/min to roll and collide with each other, so that the cerium oxide is detached from the surface of the forging, and at the same time The burrs and edges of the forgings are polished, and in order to speed up the cleaning, some scrap balls are sometimes placed in the drum. The cleaning time is usually 10 to 20 minutes. This method is simple and easy, but the cleaning quality is poor.
2. Shot blasting drum cleaning: The forgings are loaded into a horizontal sealing drum rotating at a low speed (2.5~3r/min), and the iron or steel pellets with a particle size of 0.8-1.2mm are thrown from the high-speed rotating blasting machine blades. It rushed to the forging and caused the cerium oxide to fall off due to the impact. The steel shot can be automatically circulated, and the cerium oxide is sucked out by the vacuum cleaner, and the forging impact noise is small.
When the forging burr size exceeds the technical conditions of the forging, it is ground on the grinding wheel and is generally performed before the forging is annealed.
Forgings yttrium oxide is generally carried out after annealing, there are two types of horizontal roller cleaning and blasting roller cleaning:
1. Horizontal drum cleaning: Many bearing rings of different sizes are simultaneously loaded into the horizontal drum that rotates at a speed of 20-60r/min to roll and collide with each other, so that the cerium oxide is detached from the surface of the forging, and at the same time The burrs and edges of the forgings are polished, and in order to speed up the cleaning, some scrap balls are sometimes placed in the drum. The cleaning time is usually 10 to 20 minutes. This method is simple and easy, but the cleaning quality is poor.
2. Shot blasting drum cleaning: The forgings are loaded into a horizontal sealing drum rotating at a low speed (2.5~3r/min), and the iron or steel pellets with a particle size of 0.8-1.2mm are thrown from the high-speed rotating blasting machine blades. It rushed to the forging and caused the cerium oxide to fall off due to the impact. The steel shot can be automatically circulated, and the cerium oxide is sucked out by the vacuum cleaner, and the forging impact noise is small.
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