This paper introduces the developing progress of metallic pressure sealing ring, including selecting material, drawing special forging process, intenerating process and drawing machining process.
介绍了具有优良使用性能，可替代进口产品的金属自密封环的研制，包括选材、制定特殊锻造工艺、制定机械加工工艺规程和软化处理等。
I plant mainly produces all kinds of high, medium, low flange, ring, forging, gear and special flange.
我厂主要生产各种高、中、低压法兰，环件、锻件、齿轮及异型法兰。
The technical keys of manufacturing large high - low pressure combined rotors are selecting optimum chemical compositions, refining , forging and special heat treatment.
制造大型高低压复合转子的技术难点是：选择最佳的化学成分精炼、合理的锻造工艺和采用特殊的热处理方法。
Blade forging is a kind of important processing method in all of those because of its special superiority.
在叶片的各种制造方法中，由于锻造加工工艺的特殊优越性，使得叶片锻造成为一种非常重要的加工方法。
Technical test, production and application of gearshift forks show that application of investment casting-forging technology to some special-shaped parts may be popularized.
通过变速器拨叉零件的工艺试验和生产应用，说明对一些异型工件应用失蜡浇铸锻造工艺可以推广。
Technical test, production and application of gearshift forks show that application of investment casting-forging technology to some special-shaped parts may be popularized.
通过变速器拨叉零件的工艺试验和生产应用，说明对一些异型工件应用失蜡浇铸锻造工艺可以推广。
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