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图1为我厂加工的一批铝青铜八角锤,铸造成形,成品重2.7kg,要求硬度28~32HRC,其材质与QAl10—4—4相近,铸造毛坯硬度达不到要求,需经热处理强化。 由于铝青铜热处理可借
Figure 1 is a batch of aluminum bronze octagonal hammers processed by our factory. The finished products weigh 2.7kg and require hardness 28 ~ 32HRC. The material is similar to QAl10-4-4. The hardness of the cast rough can not reach the requirement. . As aluminum bronze heat treatment can borrow