Problems and solutions of abrasive belt in grinding process
(1) The belt is too soft. Sand belt damp, drying can, but the temperature should not be too high, so as to avoid foaming or coking of rubber layer
(2) Abrasive is easy to blunt, but does not fall off the belt grinding, if the contact wheel is too soft, it is easy to appear the abrasive surface is not fall off but not sharp. If this happens, the grinding pressure should be increased or the contact wheel with a harder or wider gear should be replaced or the contact wheel with a smaller diameter should be replaced, or the linear velocity of the belt can be reduced, so as to solve the situation of the sand surface is not sharp.
(3) Easy to take off the sand, the base is exposed this is mainly abrasive bond is not strong, should replace the belt. Either a soft contact wheel or a larger diameter contact wheel is selected to increase the curvature radius of the belt and reduce the grinding pressure, or a narrow gear contact wheel is selected to improve the linear velocity of the belt.
(4) The abrasive layer blocking is mainly abrasive belt choose wrong, if the paint processing, appropriate chooses special coated abrasive belt, such as aluminum alloy, stainless steel, copper soft metal materials, appropriate chooses resistance lubrication, coolant water proof abrasive belt, resistance to water flood resistance, grinding wood and its products, appropriate chooses black silicon carbide or corundum abrasives.