An American brand name for a zinc alloy for die casting, made of zinc with about 4% aluminum, a small amount of copper, and a trace amount of magnesium. The British trademark is Mazak, and the alloy specified by the Japanese JIS is also of this type. There are several types with different amounts of copper and magnesium. With a low melting point and good fluidity, it has properties suitable for die casting, such as being able to produce products with complex shapes and thin walls. It is also relatively inexpensive, and the strength of the castings is higher than that of die castings made from other alloys. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
亜鉛に,約4%のアルミニウムと,少量の銅,微量のマグネシウムを添加したダイカスト用の亜鉛合金で,アメリカの商品名。イギリスの商標はマザックMazak,日本のJISで規定されている合金もこの系統のものである。銅とマグネシウム量の異なるいくつかの種類がある。融点が低く湯流れがよいので,形状が複雑で薄肉の製品ができるなど,ダイカスト鋳物用に適した性質をもつ。また比較的安価で,鋳物の強度も他の合金のダイカストに比べ高いほうである。
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