公开(公告)号：CA793785A

公开(公告)日：1968-09-03

申请号：CA793785D

Applicant: YAJIMA TAKASHI

Inventor： YAJIMA TAKASHI

公开(公告)号：AT276895B

公开(公告)日：1969-12-10

申请号：AT812867

申请日：1967-09-05

Applicant: YAJIMA TAKASHI ,  SAKAMOTO MINORU

Inventor： YAJIMA TAKASHI ,  SAKAMOTO MINORU

IPC: C23C1/10

公开(公告)号：GB1194392A

公开(公告)日：1970-06-10

申请号：GB4089967

申请日：1967-09-07

Applicant: YAJIMA TAKASHI ,  SAKAMOTO MINORU

Inventor： YAJIMA TAKASHI ,  SAKAMOTO MINORU

IPC: C23C2/04

Abstract: 1,194,392. Coating with copper by hot dipping. T. YAJIMA. Sept. 7, 1967, No. 40899/67. Heading C7F. Ferrous material such as iron, steel and cast iron is coated with Cu or Cu alloys by hot dipping for 2 to 40 seconds in a first molten bath of the metal in a non-oxidizing atmosphere, coating the coated product to 700‹ -800‹C. and then dipping for 1-30 seconds in a second molten bath of the metal in a non-oxidizing atmosphere which bath is at a temperature 50‹ -100‹ C. lower than that of the first bath. More than two molten baths may be used and the temperature difference between the first and last being 50‹ -200‹ C. The coating metal may be aluminium bronze and as shown in Fig. 1 ferrous strip 1 after cleaning and fluxing is passed via rolls 2 through bath 5, is cooled at 7 and passes into second bath 9. The coated strip is then cooled in zone 11 and coiled. The coated product may be hot or cold rolled.

公开(公告)号：WO2012073786A9

公开(公告)日：2013-06-06

申请号：PCT/JP2011077055

申请日：2011-11-24

Applicant: NHK SPRING CO LTD ,  YAJIMA TAKASHI ,  MORINO KENICHIRO

Inventor： YAJIMA TAKASHI ,  MORINO KENICHIRO

IPC: B21D41/04 ,  B21D22/14 ,  B21F35/00 ,  B21H1/18 ,  F16F1/06

CPC classification number: F16F1/042 ,  B21D11/06 ,  B21D22/14 ,  B21D41/045 ,  B21F35/00 ,  Y10T29/49609

Abstract: Provided are a hollow coil spring and a method for manufacturing the hollow coil spring, whereby inner surface corrosion can be prevented, and product appearance can be improved. In an end sealing step, the core material of an end (Wa) of a spring material (W) is gathered by machining to seal the end (Wa). Spinning is preferably carried out as the form of machining. While pressing the end of the spring material (W) with a squeezing roller (R), for example, toward the inside in the radial direction, the squeezing roller (R) is appropriately moved in the axial direction as necessary. The end (Wa) of the spring material (W) is thus occluded, as shown in figure 3, eliminating the need to use a separate member such as a lid member. Such an end sealing step can be carried out immediately after an inner surface processing step, for example. In a coil forming step performed after the end sealing step, even if the end (Wa) of the spring material (W) is gripped and the spring material (W) is wrapped around a rod, the formation of a gap at the end (Wa) will be prevented.

Abstract translation: 本发明提供一种中空螺旋弹簧和中空螺旋弹簧的制造方法，能够防止内表面的腐蚀，能够提高产品的外观。 在端部密封步骤中，弹簧材料（W）的端部（Wa）的芯材料通过机械加工来密封端部（Wa）。 旋转优选作为加工的形式进行。 在挤压辊（R）例如向径向内侧按压弹簧材料（W）的端部时，挤压辊（R）根据需要适当地沿轴向移动。 因此，如图3所示，弹簧材料（W）的端部（Wa）被封闭，消除了使用诸如盖构件的单独构件的需要。 例如，可以在内表面处理工序之后立即进行这样的端部密封工序。 在端密封步骤之后进行的线圈形成步骤中，即使弹簧材料（W）的端部（Wa）被夹紧并且弹簧材料（W）缠绕在杆上，则在端部处形成间隙 Wa）将被阻止。