Russian
Force effects: In the sawing process, the saw blade by the axial force and tangential force. Since the role in the circumferential direction and the radial force exists, abrasive tools so that the saw blade in the axial smectic wavy, in the radial direction. Both deformation will result in the rock section is not straight, wasted stone sawing noise, cutting disc vibration intensified, resulting in diamond caking early damage, lower the saw blade life.
Temperature effect: The traditional theory is that: the impact of temperature on the blade process mainly manifested in two aspects: First, the cause caking diamond graphite; caused by the diamond and carcass heat Woodland force and lead to premature loss of diamond particles . The new research shows that: the heat generated during the cutting process incoming caking. The arc zone temperature is not high, generally between 40 ~ 120 ℃. Abrasive grinding point temperature is high, generally between 250 ~ 700 ℃. The cooling liquid is only to reduce the average temperature of the arc area, the abrasive grain temperature was less affected. Such a temperature does not result in a graphite carbonized, but it will change in properties of the friction between the abrasive grains and the workpiece, the thermal stress occurs between the make diamond with additives, resulting diamond failure mechanism fundamental bending. The study showed that the temperature effect the greatest impact of the blade broken.
The production of the rolling, grinding roll with a hard oxide withstand cyclic loading and temperature fluctuations, and in water vapor and air-oxidizing atmosphere, and the interaction of the surrounding liquid and gaseous media, subject to various types of wear mechanism together. In the hot rolling unit is organized according to the production, the amount of each roll a rolling finish replaced after grinding roll. Throughout the rolling units, roll grinding roll undergone great changes, there is a large amount of wear.
As the wear of the grinding roller rolls deformation calculation accuracy, while tensile stress before be rolling pressure and pressure between rolls some impact, it established a grinding wheelroll wear model of the rolling process grinding roll wear prediction.
Maintaining sheet flatness conditions:
Old idea: that the elongation along the width of the same shape for good everywhere.
Disadvantages: does not consider metal lateral flow.
New concept: the plate-shaped transverse thickness difference flatness and influence each other.
Advantages: Consider the lateral flow of metal to ensure flatness flatness and horizontal thickness deviation requirements are met.