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在仪器仪表工业中,过去多采用锡磷青铜制作弹性元件。近年来,一方面由于国际市场锡的价格猛涨,使锡磷青铜的成本也相应提高;另一方面,由于电子器件趋向于微型化,对弹性材料的要求越来越高,而锡磷青铜的强度、弹性稳定性、导电性、耐腐蚀和表面光泽度等已不能满足新的要求。因此,国内外在竞相研究锡磷青铜的代用材料。我院材料科学与工程系于1979年开展了Cu-Zn-Al系超弹性合金、高强度弹性合金和形状记忆合金的研究,经过三年多的努力,对Cu-Zn-Al系弹性合金的成分范围、生产工艺和性能测试等方面做了大量的探索性试验,发现该系合金的性能可超过锡磷青铜,并找到了较佳的成分范围和生产工艺。为了使科研变为生产力,1983年5月我院与苏州钢材厂订立协议,进行扩大试验及工业生产。材料科学与工程系副教授曹明盛、讲师刘锦文、王云辉和苏州铜材产工程师程镇康、稽敬等人在领导和工人师傅的支持下,通过大量的工作,研制成功了SP_2无锡铜基弹性合金带材,分别送苏州电视机厂、苏州电阻厂、南京胶木电器厂、南京电表厂、上海汽车配件厂、南京塑料电器厂等工厂制作弹性元件,进行装机试验,结果证明SP_2无锡铜基弹性合金的性能优于原用材料——QSn6.5—0.1锡磷青铜带,而且价格较低,其成本比锡磷青铜带可降低20％以上。江苏省冶金厅于1984年10月29日—31日在苏州主持召开了SP_2无锡铜基弹性合金带材
In the instrumentation industry, the past, the use of tin phosphorus bronze elastic components. In recent years, on the one hand, the cost of tin-phosphor bronze has also increased due to soaring tin prices in the international market. On the other hand, as the electronic devices tend to be miniaturized, the requirements for elastic materials are getting higher and higher, The strength, elastic stability, electrical conductivity, corrosion resistance and surface gloss, etc. can not meet the new requirements. Therefore, at home and abroad competing in the study of alternative materials tin bronze. Materials and Engineering Department of our hospital in 1979 launched a Cu-Zn-Al super-elastic alloy, high-strength elastic alloy and shape memory alloy research, after more than three years of efforts, Cu-Zn-Al elastic alloy Composition range, production technology and performance testing done a lot of exploratory experiments and found that the Department of the alloy performance than tin and phosphor bronze, and found a better composition of the scope and production technology. In order to make scientific research into productivity, in May 1983 our hospital and Suzhou Steel Factory entered into an agreement to expand the test and industrial production. Cao Mingsheng, associate professor of materials science and engineering, lecturer Liu Jinwen, Wang Yunhui and Suzhou copper production engineer Cheng Zhenkang, Ji Jing and others with the support of leaders and workers master, through a lot of work, successfully developed SP_2 Wuxi copper-based elastic alloy strip , Which were respectively sent to Suzhou TV Factory, Suzhou Resistance Factory, Nanjing Bakelite Electrical Factory, Nanjing Ammeter Factory, Shanghai Auto Parts Factory and Nanjing Plastic Electric Factory to manufacture flexible components for installation test. The results show that the properties of SP_2 Wuxi Cu-based elastic alloy Better than the original material - QSn6.5-0.1 tin phosphor bronze tape, and the price is lower, the cost of tin bronze tape can be reduced by more than 20%. Jiangsu Province Metallurgical Office in October 29, 1984 -31 days held in Suzhou SP_2 Wuxi copper-based elastic alloy strip