二、关于改变我国大型重载精密齿轮制造工艺落后面貌的设想 1.大型齿轮制造的战略综上所述的分析以及最近由国内几个主要大齿轮制造工厂的调查,可以认为,我国的工艺水平与工艺发达国家的先进水平相比,大约落后20～30年。80年代初,工艺发达国家的齿轮生产技术,已达到的高水平的主要特点是:“六高”、“二低”、“二化”。面对这些,可以采取:其一是向国外引进设备和技术。而关 Second, the idea of ​​changing the backwardness of the manufacturing process of large heavy-duty precision gears in China 1. The strategy of large-scale gear manufacturing To sum up the above analysis and the recent survey of several major gear manufacturing plants in China, it can be concluded that the technological level of our country Compared with the advanced level of technology developed countries, about 20 to 30 years behind. In the early 1980s, the main features of the high-level gear production technology of developed countries in the art were: “six highs”, “two lows” and “two changes.” Faced with these, we can take: One is to introduce equipment and technology to foreign countries. And off