The purpose of the clean-up is to remove the burr of the ring forgings and beryllium oxide.

When forging burr size beyond forgings, rubbed off on the wheel, and generally before annealing of the forgings.

The forging of beryllium oxide is generally after annealing, horizontal roller clean-up and shot blasting drum cleaning two kinds:

Horizontal drum clean-up: different size bearing rings at the same time load 20 ~ 60r/min speed rotary horizontal drum rolling and hit each other, beryllium oxide off from the forging surface, while the forging burr and edge polished, in order to accelerate the clean-up, and sometimes put some scrap steel ball roller. Clean-up time 10 ~ 20min. This method is simple, but clean up poor quality.

(2) shot blasting drum cleaning: the forging load within the sealed drum rotating horizontal low-speed (2.5 ~ 3r/min), the particle size of 0.8 ~ 1.2mm iron pills or steel shot, shot peening device leaves high-speed rotation. throw rushed forging beryllium oxide flake off due to impact. Steel shot can automatically cycle, beryllium oxide by vacuum small forgings impact noise.


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