Wear of Oval and Round Calibers Rolls of High-Speed Wire Block

It was proposed to use a new measurement method for studying the research of wear of round and oval calibers of hard-alloy rolls of a high-speed wire block. The method allows for assessing the extent of wear of the caliber groove over its complete width. With the traditional adjustment of the finished block, during rolling wire with a diameter of 5.5 mm, the fourth and fifth stands were most subject to wear. It was shown that due to the use of fluid bearings as supports and the cantilever position of the rolls at an angle of 45° to the horizon, the upper and lower streams wear unevenly in width. The wear of the lower roll is greater than the upper one. The non-linear regression formulas for calculating the value of wear grooves carbide rolls were obtained. It was proposed to consider a wear model of an oval caliber consisting of four parts for modeling character wears near the actual process. New formulas were obtained for calculating the wear value during hot rolling in the system of calibers “oval–round” in carbide rolls. The obtained results correspond to the existing ideas of the theory of destruction and exploitation of rolling rolls.