High-performance water-based lubricating oil for copper-zinc alloy cold stamping

Abstract

The invention mainly relates to the technical field of stamping lubricants and discloses a high-performance water-based lubricating oil for copper-zinc alloy cold stamping. The high-performance water-based lubricating oil for copper-zinc alloy cold stamping is prepared from the following raw materials: tungsten disulfide, carbon monofluoride, fullerene, nickel sulfide, polyether modified silicon and water. Water is volatilized during cold stamping, so that the cold stamping temperature is reduced by 40-50 DEG C; the heat frictional force generated by copper-zinc alloy cold stamping is obviously reduced, and the copper-zinc alloy continuously flows during cold stamping, so that the breakage rate is reduced by 17.3%, and the wrinkling rate is reduced by 12.6%; tungsten disulfide and nickel sulfate are mixed at a high temperature, so that the resistance to oxidation of tungsten disulfide and the wear resistance of the nickel sulfate are increased; a golden yellow color and luster of a copper-zinc alloy cold stamping part can be maintained, the service life is prolonged, and the cold stamping temperature is relatively high, so that the size of nickel sulfate is reduced, the gaps between the copper-zinc alloy and a mold are reduced, and therefore, cold stamping is more accurate; the size of the nickel sulfate is gradually increased after temperature reduction, the gaps are increased, and demolding is facilitated, so that the surface of the copper-zinc alloy cold stamping part is smooth and the defective rate is reduced.

Description

technical field [0001] The invention mainly relates to the technical field of stamping lubricants, in particular to a high-performance water-based lubricating oil for copper-zinc alloy cold stamping. Background technique [0002] Copper-zinc alloy is a kind of memory alloy, golden yellow, like the color of gold, commonly known as brass, and has a wide range of uses. Small fractures and flaws produced in the cold stamping process will affect the use value of copper-zinc alloy. [0003] Cold stamping is a pressure processing method that uses a stamping die to apply pressure to a sheet or hot material on a press at room temperature to cause plastic deformation or separation to obtain parts of the desired shape and size. The process is simple, but cold During the stamping process, the friction force is large, and the metal flow is intermittent, which may easily cause the plate to break and wrinkle. As the deformation temperature of the metal in the stamping die will continue to ...

AI Technical Summary

Problems solved by technology

[0003] Cold stamping is a pressure processing method that uses a stamping die to apply pressure to a sheet or hot material on a press at room temperature to cause plastic deformation or separation to obtain parts of the desired shape and size. The process is simple, but cold During the stamping process, the friction force is large, and the metal flow is intermittent, which may easily cause the plate to break and wrinkle. As the deformation temperature of the metal in the stamping die will continue to rise, the oil-based lubricating oil will become thinner, and in some cases it will Reach the flash point or burn (smoke), lubrication failure, so high-performance water-based lubricating oil is required