Manufacturing method of rotor core
    1.
    发明授权
    Manufacturing method of rotor core 失效
    转子芯的制造方法

    公开(公告)号:US07676902B2

    公开(公告)日:2010-03-16

    申请号:US10824408

    申请日:2004-04-15

    IPC分类号: H02K15/03

    摘要: In order to realize a method of forming a rotor core that improves the productivity and enhances the product accuracy, a forming method of a rotor that is equipped with both permanent-magnet fastener on the inner perimetric end of the magnetic pole claw of the rotor core and tapered surface on the outer perimetric end on one end of the magnetic pole claw in the circumferential direction. By constraining the inner perimetric surface of the magnetic pole claw by a die and applying a forming pressure in the radial direction, the tapered surface on the outer perimetric end of the magnetic pole claw and permanent-magnet fastener on the inner perimetric end can be formed at the same time and a rotor core with high product accuracy and mass-productivity is realized.

    摘要翻译: 为了实现提高生产率并提高产品精度的转子芯的形成方法,在转子铁芯的磁极爪的内周端配备有永久磁铁紧固件的转子的形成方法 并且在圆周方向上的磁极爪的一端上的外周端上的锥形表面。 通过用模具约束磁极爪的内周面,并在径向上施加成形压力,可以形成磁极爪的外周端上的锥形表面和内周端上的永磁体紧固件 同时实现了高产品精度和批量生产率的转子铁心。

    Method of vacuum-sealing vacuum articles
    2.
    发明授权
    Method of vacuum-sealing vacuum articles 失效
    真空密封真空物品的方法

    公开(公告)号:US4125390A

    公开(公告)日:1978-11-14

    申请号:US790117

    申请日:1977-04-22

    IPC分类号: H01J9/26 H01J17/16 C03C27/00

    CPC分类号: B29C67/004 H01J9/261

    摘要: A sealing member not adhesive before melting is applied to a portion of a vacuum article to be sealed while maintaining a communication passage between the inside and outside of the article. After mounting the article in an evacuation tank, the tank is evacuated to evacuate the article through the communication passage. Then the sealing member is heated and melted to seal the article airtightly.

    摘要翻译: 熔融前不粘合的密封构件被施加到要密封的真空物品的一部分,同时保持物品内部和外部之间的连通通道。 将物品安装在撤离罐中后,将箱体抽出,通过连通通道将物品抽出。 然后将密封件加热熔化以密封物品。

    Corrosion inhibiting coolant compositions
    3.
    发明授权
    Corrosion inhibiting coolant compositions 失效
    防腐蚀冷却剂组合物

    公开(公告)号:US5811025A

    公开(公告)日:1998-09-22

    申请号:US541806

    申请日:1995-10-10

    CPC分类号: C09K5/20 C23F11/08

    摘要: Coolant compositions are disclosed which include only a minimum amount of metal corrosion inhibitor. The coolant compositions effectively inhibit: (1) metal corrosion; (2) precipitation of the included metal corrosion inhibitor; (3) oxidative deterioration of the included glycol; (4) lowering of the pH value of coolant fluid; and (5) chemical reaction with hard water components. A coolant composition of the invention includes an alkylbenzoic acid (or acids) or a salt (or salts) thereof, a hydrocarbon triazole and an alkali nitrate in addition to a glycol (or glycols) as a base, water and others. It is characteristic that the coolant compositions of the present invention do not include any aliphatic monobasic acids.

    摘要翻译: 公开了仅包含最少量的金属腐蚀抑制剂的冷却剂组合物。 冷却剂组合物有效地抑制了:(1)金属腐蚀; (2)含金属缓蚀剂沉淀; (3)所含二醇的氧化劣化; (4)降低冷却剂流体的pH值; 和(5)与硬水组分的化学反应。 本发明的冷却剂组合物除了作为碱的二醇(或二醇)以外,还包括烷基苯甲酸(或其酸)或其盐(或其盐),烃三唑和碱金属硝酸盐。 特点是本发明的冷却剂组合物不包括任何脂族一元酸。

    Electrolytic conversion solution for treating metal surface and method
for electrolytic conversion
    4.
    发明授权
    Electrolytic conversion solution for treating metal surface and method for electrolytic conversion 失效
    用于处理金属表面的电解转化溶液和电解转化方法

    公开(公告)号:US5772865A

    公开(公告)日:1998-06-30

    申请号:US717726

    申请日:1996-09-23

    IPC分类号: C25D11/00 C25D9/08 C23C22/07

    CPC分类号: C25D9/08

    摘要: An electrolytic conversion solution for metal surface treatment comprises (A) a vanadate or a vanadium salt of an inorganic acid and (B) an organic acid having a reducing ability, and has a pH of not less than 7. The electrolytic conversion solution can be employed in a method for electrolytic conversion treatment which comprises the steps of immersing a subject to be treated in the treating solution and then cathodically electrolyzing the subject in the solution. The electrolytic conversion solution is free of any chromate compound and permits the formation of uniform corrosion-resistant film on the surfaces of various kinds of metallic materials without impairing the working environment and causing any environmental pollution.

    摘要翻译: 用于金属表面处理的电解转化溶液包括(A)无机酸的钒酸盐或钒盐和(B)具有还原能力的有机酸,并且具有不小于7的pH。电解转化溶液可以是 用于电解转化处理方法,其包括将待处理对象浸入处理溶液中,然后在溶液中阴极电解受试者的步骤。 电解转化溶液不含任何铬酸盐化合物,可在各种金属材料表面形成均匀的耐腐蚀膜,不会影响工作环境,造成环境污染。

    Admixture for cement
    5.
    发明授权
    Admixture for cement 失效
    水泥外加剂

    公开(公告)号:US5653796A

    公开(公告)日:1997-08-05

    申请号:US623864

    申请日:1996-03-29

    摘要: An admixture for cement comprises phosphorous acid and/or a salt thereof or a waste fluid originated from an electroless nickel-plating process which contains phosphorous acid and/or a salt thereof. The admixture is used as a setting accelerator, a rust proofing agent for reinforcing steel or a frost resistive agent for concrete and mortar as hydraulic cement blends. The admixture not only permits improvement of the resulting concrete in the setting-accelerating effect, but also can maintain the compressive strength at a high level while maintaining the bleeding rate at a low level.

    摘要翻译: 用于水泥的混合物包含亚磷酸和/或其盐或源自含有亚磷酸和/或其盐的化学镀镍方法的废液。 该混合物用作固化促进剂,用于钢筋的防锈剂或用作混凝土和砂浆的防霜剂作为水硬性水泥混合物。 混合物不仅可以改善凝固加速效果的混凝土,而且可以将压缩强度保持在高水平,同时将渗流速率保持在低水平。