| 摘要 |
FIELD: transport. ^ SUBSTANCE: invention relates to automotive industry. Proposed method consists in producing bar from 8-30 mm-dia rod billets using steels other than manganese steel. Said bar is heated to 900-950C for 20-35 min. Bar curves are shaped in special mandrels. Bar operating parameters are automatically controlled. Said bar is fed into hardening drum with hardening temperature of 830-870C. Bar is hardened in water at 30-40C, bar diameter making 8-25 mm. Bar is tempered into two-zone conveyor furnaces with interval between hardening and tempering not exceeding 4 hours at 480-520C. It is cooled in water at not over 100C or in air in closed room. Residual stress is removed by one-time angular turn of inclined section curves through 3-5 for 5-8 s. Elastic rubber sleeves are fitted. Shaped yokes are mounted asymmetrically on the surface of said sleeves with distance between centers making 6881 mm. Said yokes are locked in sleeve elastic strain range at sleeve rubber mix pressure on bar surface making 0.5-11.5 MPa. ^ EFFECT: increased tolerable cyclic strain of car transverse stabilisers. ^ 4 dwg |
