Hydraulic Press - forging hydraulic press used in the industry earlier in the ring manufacturer, but people recognize the hydraulic machine has not yet reached a new level. The general concept is the inner ring of hydraulic machine is slow, as the old ox pulling a dray, leisurely. Does not meet the forging of "build on the progress" needs. But in the development of the hydraulic system and control technology, the ring gear coupling, hydraulic forging machine has been increasingly adapted to the needs of production. Currently the most used is extrusion, forging preform finishing coining. Chinese scholars have recently proposed a combination of experimental and finite element sub-iteration method. Convergence criterion of this approach is the finite element calculation results and experimental results of the difference is less than some small constant. This method is calculated from the test results of the initial value of the parameter of the first material in a conventional manner. Then substituted into the finite element simulation program testing process grinding ring gear, and to correct these parameters is calculated based on the difference between the results with the experimental results. Compared with ordinary numerical method to substitute the law, due to the impact of various parameters on the test results for each physical relationship is very complex, so the correction formula is much more complex. This theoretical research currently underway iterative approach. Mixer ring gear, Super League forging (certified), Zhengzhou, Luoyang Super League by the ring gear forging Limited. Luoyang Super League Forging Co., Ltd. (www.lysmzg.com) (www.lysmzg.com) is Luoyang, forgings leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. Forged in the Super League leaders with the staff warmly welcome all inquiries negotiations to create Super League forging a better future. You can also access (www.lysmzg.com/supply_details_45816345.html), for more information about the company.