形状记忆效应合金是一种特别的材料,通过处理,在高于或低于某一临界温度时有二种不同的形状。Delta课题组研制成一系列的黄铜,在-100℃到+100℃的范围里,显示出记忆效应。于是建立了Delta记忆金属有限公司,并制造了器件和不断地扩大应用。该器件是用记忆合金线绕成的线圈,看上去象一弹簧。当它通过一临界温度时,长度就发生变化,来激励控制器件。记忆金属临界温度的值不仅与合金成分有关,而且与热处理温度有密切的关系。Delta公司使用了由RWA Royce公司提供的电炉,得到了令人满意的结果。此炉工作温度为200℃— Shape memory effect alloys are a special kind of material that, when processed, have two different shapes above and below a certain critical temperature. Delta Task Group developed a series of brass, in the -100 ℃ to +100 ℃ range, showing the memory effect. As a result, Delta Memory Metal Co., Ltd. was established, manufacturing devices and expanding applications. The device is a coil wound with memory alloy wire that looks like a spring. When it passes a critical temperature, the length changes to energize the control device. The value of the memory metal critical temperature is not only related to the alloy composition, but also has a close relationship with the heat treatment temperature. Delta used the electric furnace provided by RWA Royce to get satisfactory results. The furnace operating temperature is 200 ℃ -