公开(公告)号：US07067768B2

公开(公告)日：2006-06-27

申请号：US10478015

申请日：2002-05-17

申请人： Hiroshi Miwa ,  Shigemitsu Nakabayashi ,  Hitoshi Sasaki ,  Masaaki Shoji ,  Hiroki Hashimoto ,  Osamu Kurihara ,  Takuro Kugimiya ,  Akiyoshi Shimizu ,  Shigenori Yoshimi

发明人： Hiroshi Miwa ,  Shigemitsu Nakabayashi ,  Hitoshi Sasaki ,  Masaaki Shoji ,  Hiroki Hashimoto ,  Osamu Kurihara ,  Takuro Kugimiya ,  Akiyoshi Shimizu ,  Shigenori Yoshimi

IPC分类号： B23K9/12 ,  B23K9/10 ,  H02K7/14 ,  H02K9/00

CPC分类号： H02K7/06 ,  B23K11/315 ,  B23K11/317

摘要： A motor-driven welding gun has a servomotor for displacing a movable electrode tip toward and away from a fixed electrode tip. The servomotor has a motor housing with a copper pipe which is inserted therein when the motor housing is cast. The copper pipe provides a coolant passage in the motor housing for supplying a coolant therethrough. When the coolant passage is supplied with the coolant, the motor housing is forcibly cooled, reducing the amount of heat generated by the servomotor.

摘要翻译： 电动焊枪具有伺服电动机，用于使可动电极尖端朝向和远离固定电极尖端移动。 伺服电动机具有带有铜管的电动机壳体，当电动机壳体被铸造时，其被插入其中。 铜管在电动机壳体中提供冷却剂通道，用于通过其供应冷却剂。 当冷却剂通道被供应冷却剂时，电动机壳体被强制冷却，减少了由伺服电动机产生的热量。

公开(公告)号：US4976305A

公开(公告)日：1990-12-11

申请号：US278458

申请日：1988-12-01

申请人： Kouji Tanaka ,  Syugo Kondo ,  Takeshi Imura ,  Katsuhiko Ando ,  Shigemitsu Nakabayashi

发明人： Kouji Tanaka ,  Syugo Kondo ,  Takeshi Imura ,  Katsuhiko Ando ,  Shigemitsu Nakabayashi

IPC分类号： B22D17/22 ,  B22D18/08

CPC分类号： B22D17/2218 ,  B22D18/08

摘要： The temperature of a casting die is controlled in a low-pressure casting process for pressurizing the surface of molten metal stored in a closed container to fill the molten metal in a die cavity defined in the casting die. The temperature of the casting die is detected by a temperature sensor, and compared with a preset reference die temperature range. The amount of cooling water to be supplied to the casting die is controlled based on the result of the comparison. When the detected temperature of the casting die falls in the preset reference die temperature range, the molten metal starts to be filled in the die cavity.

摘要翻译： 在低压铸造工艺中控制铸模的温度，用于对存储在密闭容器中的熔融金属的表面进行加压，以将铸造模具中限定的模腔中的熔融金属填充。 通过温度传感器检测铸模的温度，并与预设的参考模具温度范围进行比较。 基于比较的结果来控制供给到铸模的冷却水量。 当铸模的检测温度落在预设的参考模具温度范围内时，熔融金属开始填充在模腔中。

公开(公告)号：US5325907A

公开(公告)日：1994-07-05

申请号：US57457

申请日：1993-05-07

申请人： Shigemitsu Nakabayashi ,  Yoshimichi Asai ,  Akihiro Okumura

发明人： Shigemitsu Nakabayashi ,  Yoshimichi Asai ,  Akihiro Okumura

IPC分类号： B22C3/00 ,  B22C9/28 ,  B22D15/00 ,  B22D17/06

CPC分类号： B22C9/28 ,  B22C3/00 ,  B22D15/005 ,  Y10S164/14

摘要： A metallic mold for casting a vehicle wheel having openings in a periphery of a disk portion of the wheel comprises a first mold for forming that external side of the wheel which faces an outside of a vehicle when mounted thereon and a second mold for forming an internal side of the wheel. The first mold has those projections for forming the openings which abut the second mold. A high-hardness coating material is coated by electric discharge coating on at least those base portions of the projections which extend diametrically inwards of the wheel, among outer surfaces of the projections. A coating of a mold coating agent is formed on portions of sharp draft in the projections. The coating has a three-layer construction comprising an under coat coated with a mold coating agent consisting essentially of ceramics, a middle coat coated with a mold coating agent consisting essentially of a mixture of boron nitride with ceramics, and a top coat coated with a mold coating agent consisting essentially of titania.

摘要翻译： 一种用于铸造车轮的金属模具，其具有在车轮的圆盘部分周边的开口，所述金属模具包括：第一模具，用于在安装在车轮的外部时形成面向车辆外侧的车轮的外侧;以及第二模具，用于形成内部 一侧的轮子 第一模具具有用于形成邻接第二模具的开口的突起。 在突起的外表面之中的至少那些在轮的内侧延伸的突出部的基部上，通过放电涂层涂覆高硬度涂层材料。 在突起中的锋利吃水部分上形成涂覆剂的涂层。 涂层具有三层结构，其包括涂覆有基本上由陶瓷组成的模具涂层剂的底涂层，涂覆有基本上由氮化硼与陶瓷的混合物组成的模具涂层剂的中间涂层，以及涂覆有 模具涂层剂主要由二氧化钛组成。

公开(公告)号：US5314001A

公开(公告)日：1994-05-24

申请号：US68261

申请日：1993-05-28

申请人： Akio Hidaka ,  Tsutomu Terajima ,  Yuu Haga ,  Shigemitsu Nakabayashi ,  Akihiro Okumura

发明人： Akio Hidaka ,  Tsutomu Terajima ,  Yuu Haga ,  Shigemitsu Nakabayashi ,  Akihiro Okumura

IPC分类号： B22C9/28 ,  B22D15/00 ,  B22D27/04 ,  B22D18/04

CPC分类号： B22D27/04 ,  B22C9/28 ,  B22D15/005

摘要： The lower mold which forms the external side of the vehicle wheel is water-cooled by water-cooling pipes. The rib-forming portions of the upper mold which forms the internal side of the vehicle wheel are forcibly air-cooled by the air passages provided along the rib-forming portions. Since water-cooling has better cooling capacity than air-cooling, the molten material inside the cavity between the lower mold and the upper mold is solidified from the external side thereof, and no defects such as shrinkage cavities occur on the external side thereof. When the internal side is solidified, the rib portions are solidified not much later than the other portion of the internal side, thereby shortening the casting cycle time. The split molds which form the cavity for forming therein the rim portion of the vehicle wheel are opened earlier than the upper mold, at the time when the surface layer portion of the molten material in the cavity has been solidified. If the split molds are kept clamped, the clearance to be generated between the split molds and the molten material upon contraction thereof due to solidification, restricts the heat dissipation from the molten material to the split molds, resulting in retarded solidification. To the contrary, early opening of the split molds leads to accelerated solidification of the molten material due to cooling of the rim portion by the atmosphere.

摘要翻译： 形成车轮外侧的下模具通过水冷管道进行水冷。 形成车轮内侧的上模的肋形成部分被沿着肋形成部分设置的空气通道强制风冷。 由于水冷却的冷却能力比空气冷却性好，所以下模和上模之间的空腔内的熔融材料从外侧固化，在其外侧不会发生缩孔等缺陷。 当内侧固化时，肋部不会比内侧的另一部分更加固化，从而缩短铸造周期时间。 当空腔中的熔融材料的表面层部分已经固化时，形成用于在其中形成车轮的轮缘部分的空腔的分型模具比上模开口早。 如果分割模具保持夹紧，则由于固化而在分割模具和熔融材料收缩之间产生的间隙限制了从熔融材料到分模的散热，导致延迟凝固。 相反，分开的模具的早期打开导致由于边缘部分被大气的冷却而熔融材料的加速固化。

公开(公告)号：US4875518A

公开(公告)日：1989-10-24

申请号：US233144

申请日：1988-08-17

申请人： Takeshi Imura ,  Katsuhiko Ando ,  Shigemitsu Nakabayashi ,  Maki Hirose

发明人： Takeshi Imura ,  Katsuhiko Ando ,  Shigemitsu Nakabayashi ,  Maki Hirose

IPC分类号： B22C9/06 ,  B22D15/00 ,  B22D18/04 ,  B22D27/04

CPC分类号： B22D18/04 ,  B22C9/061 ,  B22D15/005 ,  B22D27/04

摘要： A light metal alloy such as an aluminum alloy is cast into a casting such as an automobile engine cylinder head under low pressure. A fluid pressure is applied to the surface of a light metal alloy stored in a closed container to introduce the light metal alloy from the closed container through a transfer tube and a sprue into a mold cavity defined in a mold assembly. The introduced molten metal alloy is brought into contact with molds of the mold assembly which have different thermal conductivities, respectively. The time in which the molten metal alloy is solidified is controlled by the molds of different thermal conductivities. The molds may forcibly be cooled by a cooling medium passing therethrough or cooling blocks mounted thereon.

摘要翻译： 轻质金属合金如铝合金在低压下铸造成诸如汽车发动机气缸盖的铸件。 将流体压力施加到存储在密闭容器中的轻金属合金的表面，以将来自密闭容器的轻金属合金通过输送管和浇道引入模具组件中限定的模腔中。 引入的熔融金属合金分别与具有不同热导率的模具组件的模具接触。 熔融金属合金固化的时间由不同导热系数的模具控制。 模具可以通过穿过的冷却介质或安装在其上的冷却块强制地冷却。