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用热型连铸法终形制造直径 １．５ ｍｍ的ＣｕＡｌＮｉ合金丝。当铸型温度设定为 １１１０℃时，可以拉铸出表面光洁、具有定向凝固组织的合金丝。拉铸速度 ５０ ｍｍ／ｍｉｎ时，晶粒数较少，晶界平直；拉铸速度 ８０ ｍｍ／ｍｉｎ时，晶粒数较多，晶界较曲折。试样经 １０００℃固溶处理后的一次抗拉强度达 ５０２ ＭＰａ，伸长率 １４． ４％；热型连铸法制取铜基形状记忆合金，既可免除塑性加工的困难，又可获得定向凝固组织，提高合金性能，具有巨大的优越性。
A 1.5 mm diameter CuAlNi alloy wire was fabricated by hot continuous casting. When the mold temperature is set to 1110 ℃, you can cast a smooth surface, with directional solidification of the alloy wire. When the casting speed is 50 mm / min, the number of grains is small and the grain boundaries are straight. When the casting speed is 80 mm / min, the number of grains is large and the grain boundaries are more tortuous. After 1000 ℃ solution treatment, the primary tensile strength reaches 502 MPa and elongation 14. 4%; hot continuous casting method of copper-based shape memory alloy, plastic processing can be exempted from the difficulties, but also to obtain directional solidification structure, improve the performance of the alloy, with great advantages.