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Stamping Oil FAQ And Solutions
Aug 21, 2017

Stamping oil common problems and solutions In the high hardness alloy steel plastic processing, such as stainless steel stamping, stretching, strong bundles and other processes, in the past generally agreed that chlorinated paraffin is the most effective lubricant, this misunderstanding So that many lubricants manufacturers in the provision of stamping oil, even to provide customers with the highest chlorine content has reached the oil, stamping oil is still unable to meet the production and processing required lubrication. The reason for this is that the instantaneous pressure and temperature between the material and the abrasive exceeds the effective working range of the chlorinated paraffin in the case of a thicker sheet (2 mm or more) and a large amount of deformation or with a thinning stamping process Chlorinated paraffin operating temperature of 50 ℃ - 350 ℃), will cause in a specific deformation phase of the mold and material in direct contact, which led to the most common result is the process of cracking the bottom of the workpiece cracking, because the workpiece wall and The dry friction between the outer mold increases, and the inner mold continues to punch, the workpiece down more, the greater the friction between the workpiece wall and the outer mold until the bottom of the workpiece can not withstand the lower force from the internal mold fracture.

The most effective way to improve these problems is "vulcanized fat" or "mercaptan fat", "vulcanized fat" in the stamping process, the first from the fat play a role in anti-wear, and fat hydrocarbon molecules due to the vulcanization process changes , That is, from the original linear structure into a network structure, making the viscosity increases, elasticity enhancement, which is like between the tool and the mold paved a layer of rubber film, the reason is the same. This also makes the workpiece and die force between the more uniform, to avoid the local high pressure caused by stress cracking phenomenon, the most critical stage of the stamping process after the failure of chlorine-based protective film, the formation of curing layer, so that the entire stamping process can be all in the lubrication Conditions of operation.

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