Silver-based contact material for switchgear used in power engineering
    1.
    发明授权
    Silver-based contact material for switchgear used in power engineering 失效
    用于电力工程的开关柜用银基接触材料

    公开(公告)号:US5663500A

    公开(公告)日:1997-09-02

    申请号:US669463

    申请日:1996-06-20

    IPC分类号: H01H1/0237 C22C5/06

    CPC分类号: H01H1/0237 H01H2001/02378

    摘要: Substitute materials are increasingly proposed for contact pieces in low-voltage switches, which until now frequently consisted of silver-nickel. In the case of such a substitute material which, besides silver, contains at least iron oxide (Fe.sub.2 O.sub.3 /Fe.sub.3 O.sub.4) and zirconium oxide (ZrO.sub.2) as active components, the making capacity with regard to the critical welding current is improved by an addition of a further oxide of the sixth subgroup of the Periodic System and/or of a mixed oxide that consists of iron oxide and the oxide of an element of the sixth subgroup of the Periodic System. In this connection, the further additive is, in particular, ferro-wolframate (FeWO.sub.4).

    摘要翻译: PCT No.PCT / DE94 / 01488 Sec。 371日期:1996年6月20日 102(e)1996年6月20日PCT 1994年12月14日PCT PCT。 公开号WO95 / 17758 日期1995年6月29日针对低压开关中的接触片越来越多地提出材料,到现在为止经常由银 - 镍组成。 在除了银以外含有氧化铁(Fe 2 O 3 / Fe 3 O 4)和氧化锆(ZrO 2)作为有效成分的这种替代材料的情况下,通过加入 周期性系统的第六子群的另外的氧化物和/或由氧化铁组成的混合氧化物和周期系统的第六子群的元素的氧化物。 在这方面,另外的添加剂尤其是铁 - 钨酸盐(FeWO 4)。

    Process for producing a shaped article from contact material based on
silver, contact material and shaped article
    2.
    发明授权
    Process for producing a shaped article from contact material based on silver, contact material and shaped article 失效
    基于银,接触材料和成型制品的接触材料制造成型制品的方法

    公开(公告)号:US6001149A

    公开(公告)日:1999-12-14

    申请号:US123078

    申请日:1998-07-27

    摘要: A contact material, a shaped article or contact piece and a process for producing a shaped article from a contact material based on silver, include forming a powder mixture from silver and a metal oxide, and metallurgically processing the powder to form the shaped article with the metal oxide being reduced to metal. Since metal oxide powders are obtainable with a very much smaller particle size than metal powders, it is possible to obtain a contact material with a mean particle size of the metal incorporated as an active component of less than 1 .mu.m. Such a contact material has particularly favorable switching properties as a result of the fine particle size.

    摘要翻译: 接触材料,成型制品或接触片以及由基于银的接触材料制造成型制品的方法包括由银和金属氧化物形成粉末混合物,并且冶金地加工粉末以形成具有 金属氧化物被还原成金属。 由于金属氧化物粉末以比金属粉末小得多的粒径获得,因此可以获得作为有效成分的金属的平均粒径小于1μm的接触材料。 这种接触材料由于细小的粒径而具有特别有利的开关性能。

    Silver-based contact material for use in power engineering switchgear
    3.
    发明授权
    Silver-based contact material for use in power engineering switchgear 失效
    用于电力工程开关柜的银基触点材料

    公开(公告)号:US5429656A

    公开(公告)日:1995-07-04

    申请号:US142441

    申请日:1993-11-24

    摘要: In particular for contacts in low-voltage switches, the contact material consists of silver and further active components. In accordance with the invention, there are present as active components, in combination, iron oxide (Fe.sub.2 O.sub.3 /Fe.sub.3 O.sub.4) in a proportion of between 1 and 50% by weight and at least one oxide of a further chemical element in a proportion of between 0.01 and 5% by weight. In particular, contact materials of the constitution AgFe.sub.2 O.sub.3 ReO.sub.2 and AgFe.sub.2 O.sub.3 ZrO.sub.2 have proven suitable in practice. The manufacture of the material and fabricating of the contacts can be effected by methods of powder metallurgy with the inclusion of molding or extrusion technique.

    摘要翻译: PCT No.PCT / DE92 / 00388 Sec。 371日期:1993年11月24日 102(e)日期1993年11月24日PCT提交1992年5月14日PCT公布。 出版物WO92 / 22080 日期为1992年12月10日。特别是对于低压开关中的触点,触点材料由银和其他有源元件组成。 根据本发明,作为活性组分,以比例为1至50重量%的氧化铁(Fe 2 O 3 / Fe 3 O 4)和至少一种其它化学元素的氧化物,其比例为0.01 和5重量%。 特别地,在实践中证明了AgFe2O3ReO2和AgFe2O3ZrO2结构的接触材料是合适的。 材料的制造和接触的制造可以通过包括成型或挤出技术的粉末冶金方法来实现。

    Device for manufacturing laminated semifinished material
    4.
    发明授权
    Device for manufacturing laminated semifinished material 失效
    用于制造层压半成品的装置

    公开(公告)号:US4519234A

    公开(公告)日:1985-05-28

    申请号:US513075

    申请日:1983-07-12

    摘要: A device for manufacturing a laminated semifinished material by indirect extrusion of a sintered-bond blank consisting of layers of metal, metal alloys, metal mixtures or mixtures of metals and nonmetals comprises a vessel with a rectangular cutout or extrusion chamber and a one- or multipart extrusion die with one or several cutouts. A surface of the die facing the blank is profiled in the form of one or more roof gables, the surfaces of which gable forms extend perpendicularly towards the cutout from a sliding surface of the extrusion die.

    摘要翻译: 用于通过间接挤压由金属,金属合金,金属混合物或金属和非金属混合物组成的烧结粘合坯料制造层压半成品的装置包括具有矩形切口或挤出室以及一个或多个部分的容器 挤出模具具有一个或多个切口。 面向坯件的模具的表面被成形为一个或多个屋顶玻璃板的形式,其中山形玻璃的表面从挤出模具的滑动表面垂直地朝切口延伸。