What grinding wheel is used in grinding wheel Cr12MoV?
For hardened or non quenched steel rolls, corundum grinding wheels are used, while chilled cast iron rolls, rubber rolls, copper rolls and granite rollers are made of carborundum wheels. In order to obtain higher grinding accuracy and surface quality, the corundum grinding wheel with different material should be chosen to match the corundum grinding wheel. For example, the alloy steel roller selects the chromium corundum (PA) grinding wheel, the heat-resisting alloy steel roll uses the ZA grinding wheel, and the stainless steel roller should use the single crystal corundum (SA).
The wheel should meet the following requirements: fine grinding wheel grinding time should be short, the loss is smaller; fine grinding wheel grinding heat, micro grinding edge is good, should not have the phenomenon of self.
The harder the grinding roll surface is, the softer the hardness of the grinding wheel.(1) if the grinding wheel wears too fast, it is indicated that the selected grinding wheel is too soft for the specific processing roller, and the following improvement measures can be adopted:A. improves the wire speed of the grinding wheel;B. increases the longitudinal feed speed of the carriage, i.e., the longitudinal feed of each piece of the workpiece increases to 2/3~3/4 of the wheel width;C. reduces the speed of the roll.If the above measures are taken, no obvious grinding effect has been achieved, which shows that the grinding wheel is too soft and not suitable, and a hard point grinding wheel should be selected.(2) if the grinding roller, the grinding wheel was blocked (Chi Li) or dirty, passivation of sand is not easy to fall off, easy adhesion wear of grinding wheel, grinding roller surface burning, then use the nap, wheel is too hard, you can take the following measures to improve:A. reduces grinding wheel line speed;B. improves roller speed.If the above measures have been taken, no obvious grinding effect has been achieved, indicating that the grinding wheel is too hard, and a soft grinding wheel should be chosen.4. choice of bonding agentIn addition to the mirror surface grinding, the resin bonded grinding wheel is used, and the other grinding types are made of ceramic grinding wheel.