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轴承套圈扩孔机使用的辗压辊,原来采用3Cr2W8热锻模具钢制造,以辗扩305/01为例,辗压辊的最长使用寿命为1500件,而且辗压辊小轴颈部容易断裂,既影响生产又消耗大量模具钢。
The rolling ring used in the bearing ring reaming machine was originally made of 3Cr2W8 hot forging die steel. Taking rolling 305/01 as an example, the longest service life of the rolling roller is 1500 pieces, and the rolling pin shaft Easy to break, both affect the production and consume a large amount of mold steel.