Owing to that the main shaft speed and the beating speed of reed can not attain the normal values at setting - on, the warp tension and the beating force of the reed can neither reach the normal level.

Analysis and optimization of cam weft insertion motion in rapier loom;

In this article,the weft insertion system of JAT710 is introduced,and its principle and characters are discussed.

Haulage speed has a great effect upon the efficiency and the quality and quantity of working body,productivity and working capacity depend on haulage speed.

This paper,starting from the rule of gaining the optimal cutting thick,conducts research on the matching relation of the model of the shearers' pick arangement,drum revolution speed and haulage speed.

In this paper, the writers work out a formula for the haulage speed and haulage force in the longitudinal and transversal directions,according to the hydraulic slewing device of the operating mechanism of the drifting machine with swinging arm.

The match of shearer drum rotational speed and traction speed;

Effect of Evenness Tester Yarn Traction Speed Variation on Test Result;

In the experiments,the temperature of casting mould was measured and microstructure evolution process and crystal growth direction were observed,analyzed and demarcated,under the condition of heating power of 7 kW,8 kW and 9 kW and traction speed of 40 r/min,60 r/min,80 r/min and 100 r/min and traction by metal molybdenum wire.