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    • 22. 发明申请
    • LIGHT DUTY CORROSION RESISTANT CONTACTS
    • 轻负载耐腐蚀接触
    • WO1983002195A1
    • 1983-06-23
    • PCT/GB1982000349
    • 1982-12-10
    • JOHNSON MATTHEY PUBLIC LIMITED COMPANYANDERTON, David, JamesMUNN, StephenWHITMARSH, John
    • JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    • H01H01/02
    • H01H1/023
    • Inlaid base metal or alloy bodies suitable for use as or from which may be fabricated, electrical contact elements in which the contact zones are constituted by the inlay or inlays or portions thereof, the inlay or inlays being formed from one or more corrosive resistant alloys consisting of, apart from inpurities, gold, silver and one or more platinum group metals with, optionally minor proportions of one or more of copper, nickel, and indium. In addition to the expected intrinsic anti-corrosive properties whereby low contact resistance can be maintained, the alloys referred to surprisingly also exhibit a tendency to inhibit "edge creep" from the boundary between the base metal or alloy and the inlay, an effect which has been the most prolific cause of failure with conventional inlaid contacts.
    • 适合用作或由其制造的嵌入式母材或合金体,其中接触区由镶嵌或镶嵌或其部分构成的电接触元件,所述镶嵌或镶嵌由一种或多种耐腐蚀合金形成, 除了杂质,金,银和一种或多种铂族金属,其中任选少量的铜,镍和铟中的一种或多种。 除了可以保持低接触电阻的期望的本来的防腐蚀性能之外,所引用的合金也表现出抑制从基体金属或合金与嵌体之间的边界的“边缘蠕变”的趋势,其具有 是常规镶嵌接触中最多产的失败原因。
    • 25. 发明申请
    • SILVER-BASED CONTACT MATERIAL, USE OF SUCH A CONTACT MATERIAL IN SWITCHGEAR FOR POWER-ENGINEERING APPLICATIONS AND METHOD OF MANUFACTURING THE CONTACT MATERIAL
    • 触头材料在银基,这种接触的材料的应用在电力工程和方法的控制单元进行接触材料
    • WO1995006321A1
    • 1995-03-02
    • PCT/DE1994000935
    • 1994-08-16
    • SIEMENS AKTIENGESELLSCHAFTHAUNER, Franz
    • SIEMENS AKTIENGESELLSCHAFT
    • H01H01/02
    • H01H1/0237H01H2001/02378
    • Materials based on silver/iron oxide have been proposed as substitutes for the silver/nickel materials frequently used for contact pieces in low-tension switchgear in particular. The invention proposes a material containing an additional active component consisting of an oxide of a metal of the third sub-group in the periodic table, particularly yttrium oxide (Y2O3). A material of the composition Ag/Fe2O310/Y2O31, for instance, which has suitable temperature behaviour, has the spectrum of properties required for contact pieces. In addition, the material may also include at least one metal oxide containing elements of the sixth sub-group of the periodic table, preferably iron tungstate (FeWO4). The material of the composition Ag/Fe2O39/Y2O31/FeWO40.5 has proved to be particularly suitable on account of its further improved welding and short-circuit characteristics.
    • 特别地,对于接触件在低电压开关替代材料提出了氧化银的基础上,在实践中日期银镍频繁使用。 根据本发明,包含了这样的材料,作为其他活性成分的第三子组的金属,其中(Y 2 O 3)被提供,特别是三氧化二钇的氧化物。 例如,具有该组合物的Ag / Fe2O310 / Y2O31以其良好的温度特性的材料满足所要求的特性的接触性能谱。 此外,至少含有元素周期表的第六子组的元素的金属氧化物,优选钨酸铁(FeWO4),可以存在。 特别地,具有该组合物的Ag / Fe2O39 / Y2O31 / FeWO40,5已经证明本身由于它的进一步提高焊接和短路行为的材料。
    • 27. 发明申请
    • SILVER,CADMIUM OXIDE,LITHIUM CARBONATE CONTACT MATERIAL AND METHOD OF MAKING THE MATERIAL
    • 银,氧化镉,碳酸锂接触材料及其制备方法
    • WO1981000644A1
    • 1981-03-05
    • PCT/GB1980000129
    • 1980-08-20
    • SQUARE D CO
    • SQUARE D COBRUGNER F
    • H01H01/02
    • C22C32/0021H01H1/02374
    • A material and a process for use in making electrical contacts. The material is produced in powder form suitable for later processing into electrical contacts by standard metallurgical techniques generally involving compacting the powdered material to form a compact that preferably has a backing of metallic silver, sintering the compact to form the contact having a fine sintered silver backing and forming or cutting the contact to make it to the desired shape and size. The material, and in most general applications the contact made from the material, essentially consists of silver, approximately 15% cadmium oxide by weight, and lithium carbonate at a proportion of about .005 weight percent of lithium, which is approximately equal to .04 molecular percent of lithium carbonate. The lithium carbonate is added to the powder mixture of silver and cadmium oxide powder mixture as a solution which is thoroughly mixed with the powders to form a slurry to uniformly distribute the lithium carbonate on the surfaces of the powder particles of cadmium oxide and silver by precipitation. The slurry in then dried and precipitated material is pulverized and formed into a compact without reducing the lithium carbonate prior to sintering of the compact. Thus by using lithium carbonate instead of lithium nitrate as known in the prior art, the step of reducing the lithium nitrate to lithium oxide prior to sintering the contact material is eliminated without sacrificing the performance of the contact material.