Tungsten carbide rollers finishing stand with a long life, high hardness, high compressive strength, steel and other metals and affinity, low friction coefficient is small, good quality advantages rolling, its application is not limited to high-speed wire mill also widely used in pre-finishing, the mill stand, bar finishing mill and other fields. Long life, high temperature, high pressure, wear and good rolling quality, high-speed wire rod mill, bar mill, a small section mill has been widely used, mainly in powder metallurgy, hot isostatic pressing (HIP), combustion synthesis method.
The method of rollers pass processing description currently used can be summarized as:
1. Pass processing can be divided into two processing methods, the first one is in the ordinary rollers lathe processing, the second is the processing on a dedicated rollers grinding machine. In general rollers lathe machine card processing is the use of tools, blades made of cubic boron nitride (CBN) or polycrystalline diamond (PCD). When the car pass, when the rollers speed is reduced to 2-2.8Prm after processing achieved good results. When working on a special rollers grinders, diamond grinding wheel, to be equipped with diamond dressing equipment, tungsten carbide rollers pass processing using high-speed wire rod used in this processing methods.
2. Rolled steel rollers processing needed to cross rib slot. Machining grooves transverse ribs from efficiency, consider the cost of the optimal solution is the use of the knife milling, tool material according to the processing of rollers material selection. Be considered in the processing of tungsten carbide using cubic boron nitride (CBN) or polycrystalline diamond (PCD) material, the two materials at the same time, high hardness brittleness is larger, when the thread milling knife rib grooves easily broken off therefore requires its bulk material selection YG class tungsten carbide avoid impact during use.