The hardenability is a weight high-quality automobile gear steel quantity important target, how to enhance the gear steel the hardened numerous scholars have done the massive research, has established many hardened forecast model, but the forecast effect is not ideal. To further study the steel products the hardenability, the paper introduces the main ingredient analytic method and the multi-dimensional linear regression analytic method, take matlab as the tool write program analysis computation, has established hardened value J9 and the J15 forecast model separately, and has made the examination to the model precision. The check result indicated that J9 the forecast model can control the predicted value relative error in 5%, the J15 forecast model can control in 3%. The forecast precision had the remarkable enhancement.
温馨提示:答案为网友推荐,仅供参考