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1. 发明申请

WO1998007895A1 METHOD OF FORMING HARD CARBON FILM ON INNER CIRCUMFERENTIAL SURFACE OF GUIDE BUSH 审中-公开
标题翻译：在指南针的内部圆形表面形成硬碳膜的方法
公开(公告)号：WO1998007895A1
公开(公告)日：1998-02-26
申请号：PCT/JP1997002868
申请日：1997-08-19
申请人： CITIZEN WATCH CO., LTD. , SUGIYAMA, Osamu , MIYA, Yukio , KOIKE, Ryota , TOIDA, Takashi , SEKINE, Toshiichi
发明人： CITIZEN WATCH CO., LTD.
IPC分类号： C23C16/26
CPC分类号： C23C16/045 , C23C16/26 , Y10S427/103 , Y10S427/104
摘要： A guide bush (11) for an automatic lathe is placed in a vacuum chamber (61), and an auxiliary electrode (71) grounded or to which a DC positive voltage is applied is inserted in a central bore (11j) having an inner circumferential surface (11b) slidably in contact with a workpiece. The vacuum chamber (61) is then evacuated to an initial ultimate pressure not higher than a predetermined pressure. A DC voltage is then applied to the guide bush (11) and to an anode (79), and an AC voltage is applied to a filament (81). A carbon-containing gas is then introduced into the vacuum chamber (61) to generate a plasma, and the interior of the vacuum chamber is controlled so that the pressure therein reaches a film forming level higher than the initial ultimate pressure as a hard carbon film is formed on the inner circumferential surface of the guide bush (11) by a plasma CVD process.
摘要翻译：将用于自动车床的引导衬套（11）放置在真空室（61）中，并且接地的辅助电极（71）或施加有直流正电压的辅助电极（71）插入具有内圆周的中心孔（11j）表面（11b）可滑动地与工件接触。然后将真空室（61）抽真空至不高于预定压力的初始极限压力。然后将直流电压施加到引导衬套（11）和阳极（79），并且将AC电压施加到灯丝（81）。然后将含碳气体引入真空室（61）以产生等离子体，并且控制真空室的内部，使得其中的压力达到比初始极限压力高的成膜水平，如硬碳膜通过等离子体CVD工艺形成在导套（11）的内周面上。

2. 发明申请

WO1998006885A1 METHOD OF REMOVING HARD CARBON FILM FORMED ON INNER CIRCUMFERENTIAL SURFACE OF GUIDE BUSH 审中-公开
标题翻译：在指南针的内部表面形成的硬碳膜的移除方法
公开(公告)号：WO1998006885A1
公开(公告)日：1998-02-19
申请号：PCT/JP1997002840
申请日：1997-08-15
申请人： CITIZEN WATCH CO., LTD. , SUGIYAMA, Osamu , MIYA, Yukio , KOIKE, Ryota , TOIDA, Takashi , SEKINE, Toshiichi
发明人： CITIZEN WATCH CO., LTD.
IPC分类号： C30B29/04
CPC分类号： C23G5/00
摘要： A guide bush (11) having a hard carbon film (15) on an inner circumferential surface thereof in slide contact with a workpiece is placed in a vacuum chamber (61) in which an anode (79) and a filament (81) are provided, with an auxiliary electrode (71) inserted in a central bore (11j) of the guide bush. The vacuum chamber (61) is evacuated while grounding the auxiliary electrode (71) or applying a DC positive voltage thereto. An oxygen-containing gas is then introduced into the vacuum chamber, and a DC voltage is applied to the guide bush (11) and the anode (79), and an AC voltage is applied to the filament (81), whereby a plasma is generated in the vacuum chamber (61). The hard carbon film (15) is thus etched and removed from the inner circumferential surface of the guide bush (11).
摘要翻译：将具有与工件滑动接触的内周面上的硬质碳膜（15）的引导衬套（11）放置在设置有阳极（79）和灯丝（81）的真空室（61）中，辅助电极（71）插入导套的中心孔（11j）中。在使辅助电极（71）接地或向其施加直流正电压的同时对真空室（61）进行抽真空。然后将含氧气体引入到真空室中，并且将直流电压施加到导套（11）和阳极（79），并且将交流电压施加到灯丝（81），由此等离子体在真空室（61）中产生。因此，从引导衬套（11）的内周面蚀刻除去硬质碳膜（15）。

3. 发明申请

WO1996028270A1 GUIDE BUSH AND METHOD FOR FORMING A HARD CARBON FILM ON AN INTERNAL CIRCUMFERENTIAL SURFACE OF SAID BUSH 审中-公开
标题翻译：导线总线及其制作方法在硬质合金内部圆周表面形成硬碳膜
公开(公告)号：WO1996028270A1
公开(公告)日：1996-09-19
申请号：PCT/JP1996000580
申请日：1996-03-08
申请人： CITIZEN WATCH CO., LTD. , MIYA, Yukio , SUGIYAMA, Osamu , KOIKE, Ryota , TOIDA, Takashi , KIMURA, Sosaku , KOKUBO, Kunihiko
发明人： CITIZEN WATCH CO., LTD.
IPC分类号： B23B13/12
CPC分类号： B23B31/202 , B23B13/125 , B23B2222/28 , B23B2222/88 , B23B2231/2059 , C23C16/0281 , C23C16/045 , C23C16/26 , Y10T279/17418 , Y10T279/17452
摘要： A carbon film (15) is formed on an internal circumferential surface (11b), in sliding contact with a work (51), of a guide bush (11) provided on an automatic lathe for rotating and holding the work (51) in such a manner as to slide in an axial direction in the vicinity of a cutting tool directly or via an intermediate layer for improving adhesion strength, or on a hard member provided on the internal circumferential surface directly or via an intermediate layer for improving adhesion strength, thereby making it possible to remarkably improve the durability of the guide bush (11), to eliminate a risk of flaws being generated in the work even when the guide bush is used for a long time or used under heavy cutting conditions on the automatic lathe and to prevent the occurrence of seizure that results in cutting failure. In addition, an auxiliary electrode is disposed in the guide bush (11) in a vacuum tank, and plasma is generated by gas containing carbon so as to form a hard carbon film, thereby making it possible to efficiently form on the internal circumferential surface (11b) a hard carbon film (15) that has good adhesion strength and a uniform film thickness.
摘要翻译：在设置在自动车床上的引导衬套（11）与工件（51）滑动接触的内周面（11b）上形成碳膜（15），用于将工件（51）旋转并保持在其上可以直接或通过中间层在切削工具附近沿轴向滑动以提高粘合强度的方式，或直接地或经由中间层设置在内周面上的硬质构件上以提高粘合强度，从而使得可以显着地提高导套（11）的耐久性，即使在长时间使用导筒或在自动车床上在重切削条件下使用时也消除了作业中产生缺陷的风险，并且防止导致切割失败的发作。此外，辅助电极设置在真空槽内的引导衬套（11）中，并且通过含有碳的气体产生等离子体，以形成硬质碳膜，从而可以在内周面上有效地形成 11b）具有良好的粘合强度和均匀的膜厚度的硬质碳膜（15）。

4. 发明申请

WO1998001600A1 GUIDE BUSH AND METHOD OF FORMING FILM ON GUIDE BUSH 审中-公开
标题翻译：指导总线及其指导方法
公开(公告)号：WO1998001600A1
公开(公告)日：1998-01-15
申请号：PCT/JP1997002365
申请日：1997-07-08
申请人： CITIZEN WATCH CO., LTD. , KOIKE, Ryota , MIYA, Yukio , SUGIYAMA, Osamu , TOIDA, Takashi , SEKINE, Toshiichi
发明人： CITIZEN WATCH CO., LTD.
IPC分类号： C23C16/26
CPC分类号： C23C16/26 , B23B31/202 , B23B2231/2059 , C23C16/509
摘要： A plasma CVD process using an auxiliary electrode and a dummy member is used to form a hard carbon film (15) on an inner peripheral surface (11b) of a guide bush (11) in sliding contact with an article (51) being processed and a portion (11h1) of an opening end surface (11h) near the inner peripheral surface directly or through an intermediate layer providing an increased adhesion or on a surface of a hard member provided on the surfaces directly or through an intermediate layer providing an increased adhesion, the guide bush (11) being mounted to an automatic lathe to support the article (51) near a cutting tool slidably in a rotating direction or in an axial direction. Accordingly, the guide bush (11) is exceedingly increased in durability, and incapability of cutting due to seizure is prevented even in long term use and heavy cutting in an automatic lathe. Further, scar is prevented from being generated on an inner peripheral surface of the guide bush (11) by burring of the article (51) being processed.
摘要翻译：使用辅助电极和虚拟构件的等离子体CVD工艺在与正在加工的物品（51）滑动接触的引导衬套（11）的内周面（11b）上形成硬质碳膜（15）直接或通过中间层附近的内周面附近的开口端面（11h）的部分（11h1），或提供粘附力增加的中间层，或者设置在表面上的硬质构件的表面，导向套筒11被安装在自动车床上，以沿着旋转方向或轴向方向可滑动地支撑切割工具附近的物品51。因此，导套（11）的耐久性极度提高，即使在自动车床中长期使用和重切削也防止由于卡住而导致的切割不能。此外，通过加工的物品（51）的卷边，防止在引导衬套（11）的内周面上产生疤痕。

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