How to choose stamping mechanical grease Reasonable Selection of Grease for Precision Press

How to choose stamping mechanical grease Reasonable Selection of Grease for Precision Press In this case, The choice of grease, the main friction should consider the conditions (load bus bar bender, speed, temperature), work status (continuous operation, intermittent operation, with or without vibration and shock, etc.) and work environment (humidity, air temperature steel plate punching machine, air pollution ). In this case, (1) the use of grease should be at least lower than its dropping point 20 to 30 degrees In this case, In the use of high temperature, the choice should be good oxidation resistance, evaporation loss and a small drop of high fat; in the use of low temperature Drilling Machine for H beam, the precision punch should choose a low starting torque, similar to the small viscosity of the fat, such as oil as the base oil . In this case, (2) the selected grease should be lubricated friction with the use of speed to adapt In this case, In the high speed, the precision punch to use low viscosity base oil made of large cone penetration of grease; for low-speed grease, should be selected to high viscosity base oil made of high penetration grade grease. In this case, (3) the selected grease should be compatible with the size of the load. Heavy-duty, should choose the base oil viscosity, thickening agent content of high grease. When the load of the precision press is particularly large, it should be noted that the grease with the extreme pressure additive or filler (molybdenum disulfide and graphite) should be selected. In the case of medium and low load, the grease with the short and medium viscosity base oil . In this case, (4) selected grease should be used with the environmental conditions to adapt In the air humid or in contact with water environment, should be used, such as calcium, lithium, lithium and other composite water resistance of good fat; dust for a long time, should choose a thicker hard (ie, higher brand) of fat, so sealing Preferably, impurities are prevented from being incorporated into the friction pairs. In a strong chemical medium environment, should be used such as fluorocarbon grease such as chemical resistant synthetic lubricants.

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