Processing technology of bearing
A technology of bearing processing and technology, which is applied in the field of bearing processing technology, can solve the problems of low toughness, easy fracture, rib fracture, etc., and achieve the effect of improving efficiency and good corrosion resistance
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Embodiment 1
[0024] A bearing processing technology includes forging, turning, carburizing and heat treatment.
[0025] Described turning process comprises the steps:
[0026] A. Blanking: The original blank for blanking is a tubular bar. Cut the original blank according to the length of the bearing on the sawing machine to obtain the primary blank of the bearing. The outer diameter of the original blank is 0.1 larger than the outer diameter of the final product of the bearing. mm-0.2mm, the inner diameter of the original blank is 0.1mm-0.2mm smaller than the inner diameter of the final bearing product;
[0027] B. End face chamfering and grinding: the two end faces of the bearing are chamfered, and the two end faces of the bearing are ground on a surface grinder;
[0028] C. Punching: There is an oil injection hole on the side wall of the bearing, the bearing is fixed on the punching machine, and the oil injection hole is manufactured by stamping;
[0029] D. Oil injection hole chamferi...
Embodiment 2
[0041]A bearing processing technology includes forging, turning, carburizing and heat treatment.
[0042] The bearing material is 40Cr 1 Ni 2 A stainless steel.
[0043] Liquid throwing treatment is also carried out after the heat treatment.
[0044] The liquid polishing treatment process is to place the inner ring and outer ring of the stainless steel bearing in the centrifugal drum, and then add a certain amount of water by adding high-frequency ceramic balls and polishing liquid; the weight ratio in sequence is 15:30 :6:45, temperature 60°C.
[0045] Passivation treatment is also carried out after the liquid throwing treatment, the passivation solution is to add 2g calcium dichromate powder in 100ml of hydrochloric acid, stir and dissolve.
[0046] The heat treatment includes quenching and tempering. Quenching is heating to 800°C, holding for 30 minutes and quenching in cooling oil; tempering is heating to 250°C, holding for 6 hours, and cooling naturally.
[0047] Tur...
Embodiment 3
[0049] A bearing processing technology includes forging, turning, carburizing and heat treatment.
[0050] The bearing material is 40Cr 1 Ni 2 A stainless steel.
[0051] Liquid throwing treatment is also carried out after the heat treatment.
[0052] The liquid polishing treatment process is to place the inner ring and outer ring of the stainless steel bearing in the centrifugal drum, and then add a certain amount of water by adding high-frequency ceramic balls and polishing liquid; the weight ratio in sequence is 15:30 :6:45, temperature 80°C.
[0053] Passivation treatment is also carried out after the liquid throwing treatment, the passivation solution is to add 2g calcium dichromate powder in 100ml of hydrochloric acid, stir and dissolve.
[0054] The heat treatment includes quenching and tempering. Quenching is heating to 1000°C, holding for 30 minutes and quenching in cooling oil; tempering is heating to 300°C, holding for 6 hours, and cooling naturally.
[0055] T...
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