| 摘要 |
FIELD: production processes. ^ SUBSTANCE: invention refers to mechanical assembly of threaded connections by pulse impact wrench and can be used in different fields of engineering industry. Threaded connection receives series of impact-rotative pulses till reaching turning torque specified value. The power of single impact of impact-rotative pulse at tightening is increased from pulse to pulse by increasing of striker starting time. ^ EFFECT: provision of increase of tightening torque accuracy. ^ 2 cl, 1 dwg |
