铅、硼砂对铝硅合金变质作用的探讨  

Effects of Lead and Borax on Al-Si Alloy

作　　者：蔡惠民[1] 梁济[1] 

机构地区：[1]天津大学

出　　处：《特种铸造及有色合金》1994年第4期11-13,共3页Special Casting & Nonferrous Alloys

摘　　要：在铝硅合金中加铅（Ｐｂ）、硼砂（Ｎａ２Ｂ４Ｏ７·１０Ｈ２Ｏ），考察其对铸态组织的影响。试验表明：铅有变质作用，加入０．８％～１．０％Ｐｂ，可得到典型的变质组织。硼砂有细化晶粒和变质的两重作用；再加入一些物质，可能成为一种新型的复合处理剂。The effects of lead and borax on the casting structure were investigated. The resultsshow that typical modified structure was obtained when 0. 8% ～ 1. 0% lead was added. Borax hasthe functions of modification and refining grain. If some other substances were added, a new kindof compounded additive may be obtained.

关 键 词：铅 硼砂 变质 铝硅合金 铸造 

分 类 号：TG292[金属学及工艺—铸造]