Grinding machine is mainly used to grind various paint, ink, ink, paint pigments, paints, in the cable materials, synthetic leather plastics, soaps and lead core raw material production areas have larger development so the machine has become the material of these manufacturers finely the main equipment.
2013年9月28日星期六
grinding wheel Introduction and Features
resin wheel, made of resin grinding wheel, resin grinding wheel is characterized by high strength, can strengthen the wheel to add fiber mesh and steel, we are now the majority of resin grinding wheel is not grinding wheel manufacture waterproof, do not use abrasive grinding fluid, Of course, some need to join the grinding fluid resin grinding wheel, grinding finish is beautiful, the workpiece can not easily be burned, and is currently used in the cutting disc wheel, etc., resin bonded grinding wheels and metal bond strength than vitrified low.
1) grinding of the resin itself has grinding wheel a high hardness abrasive grains and heat resistance, high hardness can be processed so grinding materials such as hardened steel, carbide, etc..
2) resin grinding wheel and grinding characteristics determine the grinding process for a uniform system can trace cutting, general ap = 0.001 ~ 0.005mm; grinding speed is high, generally up to v = 30 ~ 50m / s; grinder stiffness; using hydraulic transmission, so grinding can be obtained economically with high precision (IT6 ~ IT5) and a small surface roughness (Ra = 0.8 ~ 0.2μm). Grinding is one of the main methods parts finishing.
3) As intense friction, leaving the grinding zone temperature is high. This will cause the workpiece to produce stress and deformation of the workpiece surface and even cause burns. Therefore, a lot of grinding coolant must be injected to reduce the grinding temperature. Also from the cutting disc coolant and lubrication chip.
4) a large radial force when grinding. This will cause the machine - grinding wheel - workpiece system flexibility retreat, the actual depth of cut less than the nominal depth of cut. Therefore, the grinding will be completed when the light is not to be infeed grinding to remove the error.
5) After blunt abrasive, grinding force also increased, resulting in grain crushing or off, re-exposing the sharp edge, this feature is called "self-sharpening." The resin self-sharpening grinding wheel in a certain period of time to normal, but over a certain working time should be performed after manual trimming, grinding force increases so as to cause vibration, noise, and damage the workpiece surface quality.
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