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大阪府立工业技术所,研制成功了一种具有特别性质的黄铜系新合金。这种合金在400～800℃的高温范围内加热后继而冷却,可使原来的形状发生很大的变化。制作这种合金时,首先使黄铜熔化,并向内添加铝、硅、锰、镍中的一种元素,然后再用通常的加热炉加热到约800℃,使其呈β相组织后浸入水中急冷。全部过程虽然并不需要什么特殊装置,但对添加的元素量与加热、冷却的是否适当,以及冷却后弯曲、扭转的应力方向要特别注意,这是制作
Osaka Prefecture Institute of Industrial Technology, the successful development of a special nature of the brass new alloys. This alloy in the high temperature range of 400 ~ 800 ℃ and then cooled, the original shape can be greatly changed. In the production of this alloy, firstly, the brass is melted and one element of aluminum, silicon, manganese and nickel is inwardly added thereto and then heated to about 800 ° C in a usual heating furnace to be immersed in a β-phase structure Water quench. Although the whole process does not require any special equipment, special attention should be paid to the amount of added elements and the proper heating and cooling, as well as the direction of stress after bending and twisting after cooling. This is done by making