| Warm-hot forming technique is a main method to bring about metal precision forming. For recently years , metal precision forming is gradually developing turn into one of the metal manufacture technique alone with the development and progress of science and technology. The text has test and verified the technological scheme, s feasiblety, by means of studying precision forming technique for a complex pure copper semifinished product of oxygen lance nozzleFirst, investigate and study the development of warm-hot forming technique at home and abroad, the tend of oxygen lance nozzle technique, and the demand to improve technology function application of the product from market. On the basic of above works, investigate and study to counter the application of warm-hot forming in pure copper part. According to the result, define the main study aim of the text. These are improve and steady product function and quality, improve the material utilization ratio, reduce production costs and increase income.Secondly, test and study on the method of evaluate crystalline grain size and gain fine crystalline grain, the influence factor of second crystals crystalline grain size, the relationship between pure copper, s 90e-distribute volume forming technique seheme , apply computer number simulate analyse technique to the analysis of the materil forming process, in order to define the best forming press and the rational form of distribute the semifinished produce volume, on the basic of above test and study, define the forming mould design scheme, and the processing technological scheme Apply speed forming and in time heat treatment to adequate the quality come up to require of technical targetAt last,take the type of YP356 product as example, carry on economy benefit count for the text study, test and verified the study effect, come to the study conclusion. In brief of the conclusion is the text study reach to goal of the work plan, and has a fine extend prospect. |
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