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本指导性技术文件适用于压铸用铝硅系合金(包括Al-Si-Mg、Al-Si-Cu等)和电机转子用合金的熔炼。1 总则1．1 按本文件生产的铸件,其化学成分和机械
This guideline is applicable to the smelting of Al-Si alloys for die-casting (including Al-Si-Mg, Al-Si-Cu, etc.) and alloys for motor rotors. 1 General 1.1 Castings produced according to this document, their chemical composition and machinery