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Ni29Co18合金(可伐)被广泛用来制做高真空玻璃与金属气密封接器件,它在我国已有二十余年的生产历史。目前世界各国仍都大量生产和使用这种材料。鉴于各国商品名称和牌号的繁多,对材料的检验方法也不尽相同。为了对比我国目前生产水平与发达国家相同材料的差距,不少单位都已从事不同方面的工作。我们所进行的关于合金低温相转变检验方法的对比试验,目的就是鉴别国产材料适应发达国家相同水平的程度,为今后提高合金质量提供一些有益的参考。一、试验用的三种检验方法及其区别根据可伐合金的使用要求,它不仅在室
Ni29Co18 alloy (Kovar) is widely used to make high vacuum glass and metal hermetically sealed devices, it has more than 20 years of production history in our country. At present, all countries in the world still mass produce and use this material. In view of the wide range of trade names and brands in various countries, the testing methods for materials are also different. In order to compare the current level of production with the developed countries, the gap between the same materials, many units have been engaged in different aspects of the work. The comparative tests we conducted on the test method of low-temperature phase transition alloy, the purpose is to identify the level of domestic materials to adapt to the same level of developed countries, to provide some useful references for improving the quality of the alloy in the future. First, the test with the three test methods and the difference According to Kovar’s use of the requirements, it is not only in the room