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Production method of cutout gear and cutout gear
Production method of cutout gear and cutout gear
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机译：切断齿轮和切断齿轮的制造方法
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摘要
This invention the cutoff flap which time motion possibly is arranged the cutout gear which it has (3) regards (1) and the production method inside the housing (2) and the said housing. Housing (2) and cutoff flap (3) between, plural constitution components (2; 3; 8; The cutoff flap seat opening and closing section (7) is formed 12a and 12b) by. As for topic of this invention, the arrival seat fit precision where the cutoff flap and that seat in the time of cutoff are high is guaranteed, there are times when the airtightness where through the cutout gear is high is guaranteed. In order to solve this topic, the cutout gear (1) the cutoff flap seat opening and closing section (7) the plural constitution components which are formed (2; 3; 8; Sub zero processing in the cryogenic temperature limits is administered 12a and 12b) vis-a-vis. As for this sub zero processing, profitably the aforementioned constitution component (2; 3; 8; 12a and 12b) it is done before the last machining making use of liquid nitrogen.
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