Improve the withdrawing speed can improve the lubrication conditions, to decrease the drawing force.
Appropriate temperature rise can help lubricated object surface gap absorbed the lubricant surfactant molecules, to decrease the coefficient of friction, to reduce the force of needed to overcome external friction and additional shear deformation, and reduce the drawing force.
Due to the reduction of drawing force, the safety factor is along with the withdrawing speed increased.
It should be noted that, when wire drawing machine in a high withdrawing speed, instant startup easy to pull off the steel wire. Because the pulling force of drawing machine starting is several times bigger than stable operation. The drawing machine started from rest to suddenly accelerated, it need to overcome the static friction resistance, but the static friction coefficient is much larger than dynamic friction coefficient, the require startup drawing force is greater than the stable operation required. So, when selecting the high withdrawing speed wire drawing machine, should configure the appropriate speeder, and pay attention to steadily accelerated during operation, to ensure the drawing machine normal operation.
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