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This paper analyzes and compares the ordinary heat treatment technology of Q275 steel knuckle pivot pin with the quenching and backfiring technology. 摘要分析、比较了Q275钢钩尾销普通热处理工艺与锻热淬火＋回火工艺。
Therefore, it is suggested that knuckle pivot pin should be heat treated by the adoption of the quenching technology of heat forging and backfiring. 故提出对钩尾销采用锻热淬火+回火的热处理工艺。
Technical Analysis to the Heat Treatment of Forged Knuckle Pivot Pin 钩尾销锻后热处理工艺分析
Keywords knuckle pivot pin;Q275 steel;ordinary heat treatment technology;quenching of heat forging and backfiring; 钩尾销;Q275钢;普通热处理工艺;锻造余热淬火+回火;
3.This paper analyzes and compares the ordinary heat treatment technology of Q275 steel knuckle pivot pin with the quenching and backfiring technology. 摘要分析、比较了Q275钢钩尾销普通热处理工艺与锻热淬火+回火工艺。
knuckle pivot pin 钩尾销
Place a pivot pin into the pivot point. 把大头针扎在旋转点上。
Place a pivot pin into the bp. Mark the curved line A-bp.onto the pivot paper. 在胸点上孔一枚大头针。在旋转纸上画出A到胸点的弧线。
Place a pivot pin into the BP. Mark the curved line A-BP onto the pivot paper. 在胸点上孔一枚大头针。在旋转纸上画出A到胸点的弧线。
Pivot pins are constructed of stainless steel. 枢轴销采用不锈钢结构。
Lay the front bodice on a clean sheet of paper and place a pivot pin into the bust point. 把前身样板放在一张透明纸上并把大头针孔在胸点处。
Thoroughly clean and liberally grease pivot pin and lightly tap in a straight line without pausing. 彻底清洁枢轴并到处涂上润滑油后沿直线不停轻拍。
Drop tight seating is accomplished over the full pressure range because a slight clearance at the pivot pin assures complete seating between the disc ring and body ring. 由于在枢轴销上的空隙很小,所以在整个压力范围内都可以实现漏斗形紧密阀座密封,确保阀瓣环和阀体环之间的阀座密封的完整性。
This construction avoids the need for extending the pivot pins through the valve body. 这种结构消除了将枢轴销伸长穿出阀体的必要性。
The seat, disc and pivot pins are combined into one subassembly secured to the inlet side of the body with a locking ring in sizes 3" and smaller. 阀座，阀瓣和枢轴销构成一个分总成，采用尺寸3英寸或更小的锁环固定在阀体进口一侧。
They refused to knuckle under to any pressure. 他们拒不屈从任何压力。
Some of his jokes are a bit too near the knuckle for my taste. 我觉得他有的笑话已近乎淫亵了。
Let's pin the notice on the bulletin board. 咱们把这个通知钉在布告牌上吧。
I prick the map with a pin to show our route. 我用大头针在地图上扎孔标出我们的路线。
I bought a tie pin for my husband yesterday. 昨天我给丈夫买了一支领带别针。