Forging process of bearing ring
A bearing ring and process technology, applied in bearing components, shafts and bearings, engine components, etc., can solve the problems affecting bearing service life, insufficient bearing accuracy, uneven wall thickness, etc., and achieve extended service life and good metal tightness. , The effect of eliminating wall thickness difference
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Embodiment 1
[0006] A forging process for a bearing ring, characterized in that the bearing ring is composed of the following components in weight percentage: C: 0.17 Si: 0.17 Mn: 0.30 S: 0.015 P: 0.015 Cr: 1.25 Ni: 3.25, The balance is Fe; the forging process includes the following steps: 1), in the first fire, the steel ingot with the above-mentioned composition is heated to 1200° C. in an intermediate frequency induction heating furnace, pressing the jaws, chamfering, and staggering the nozzle; 2 ), the second fire reheats the blank material obtained in 1) step, is heated to 1120 ° C, upsetting, and elongated; 3), the third fire is heated again to the blank material obtained in 2) step, heated to 1050 ° C , upsetting, rotary flattening, punching, reaming; 4), the fourth fire reheats the blank obtained in step 3), heated to 1020 ° C, upsetting in the die ring to the process size, ejection, expansion From the hole to the process size, the total forging ratio is controlled to 5.1, the furn...
Embodiment 2
[0008] A forging process for a bearing ring, characterized in that the bearing ring is composed of the following components by weight percentage: C: 0.19 Si: 0.27 Mn: 0.50 S: 0.025 P: 0.025 Cr: 1.45 Ni: 3.50, The balance is Fe; the forging process includes the following steps: 1), in the first fire, the steel ingot with the above-mentioned composition is heated to 1200° C. in an intermediate frequency induction heating furnace, pressing the jaws, chamfering, and staggering the nozzle; 2 ), the second fire reheats the blank material obtained in 1) step, heated to 1130 ° C, upsetting, and elongated; 3), the third fire is heated again to the blank material obtained in 2) step, heated to 1080 ° C , upsetting, rotary flattening, punching, reaming; 4), the fourth fire reheats the blank obtained in step 3), heated to 1030 ° C, upsetting in the die ring to the process size, ejection, expansion From the hole to the process size, the total forging ratio is controlled to 5.2, the furnace...
Embodiment 3
[0010] A forging process for a bearing ring, characterized in that the bearing ring is composed of the following components by weight percentage: C: 0.23 Si: 0.37 Mn: 0.60 S: 0.035 P: 0.035 Cr: 1.65 Ni: 3.65, The balance is Fe; the forging process includes the following steps: 1), in the first fire, the steel ingot with the above-mentioned composition is heated to 1200° C. in an intermediate frequency induction heating furnace, pressing the jaws, chamfering, and staggering the nozzle; 2 ), the second fire reheats the blank material obtained in 1) step, is heated to 1150 ° C, upsetting, and elongated; 3), the third fire is heated again to the blank material obtained in 2) step, heated to 1100 ° C , upsetting, rotary flattening, punching, reaming; 4), the fourth fire reheats the blank obtained in step 3), heated to 1050 ° C, upsetting in the die ring to the process size, ejection, expansion From the hole to the process size, the total forging ratio is controlled to 5.5, the furn...
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