公开(公告)号：US5102480A

公开(公告)日：1992-04-07

申请号：US640849

申请日：1991-01-14

Applicant: Seiichi Tanaka ,  Teruo Hirata ,  Masaharu Yida

Inventor： Seiichi Tanaka ,  Teruo Hirata ,  Masaharu Yida

IPC: C22C1/10 ,  C22C5/06 ,  C22C5/10 ,  C22C32/00 ,  H01B1/02 ,  H01H1/0237

CPC classification number: H01H1/02376 ,  C22C32/0021

Abstract: Novel Ag-SnO-CdO electrical contact materials are disclosed, which are made of ternary Ag alloys consisting of more than 5-12 weight % of Sn, 0.5-5 weight % of Cd, and a balance of Ag, the alloys having been prepared by melting and having been internal oxidized. Novel manufacturing methods are also disclosed, in which internal-oxidation is conducted in an oxygen atmosphere of more than 10 atm to 200 atm, at a temperature of 750.degree. C. to 500.degree. C., and at a condition that the alloys are kept at a solid phase not involving any liquid phase.

公开(公告)号：US4981533A

公开(公告)日：1991-01-01

申请号：US475126

申请日：1990-02-05

Applicant: Masaharu Yida

Inventor： Masaharu Yida

IPC: C22C5/06 ,  H01H1/0237

CPC classification number: C22C5/06 ,  H01H1/02376

Abstract: Electrical contact materials are made by the internal-oxidation of Ag alloys containing more than 5 weight % of Sn, with the assistance of Pb or Zr contained at an amount as minimum as possible. Complete and uniform internal-oxidation of said Sn contents are obtained primarily on account of the internal oxidation conducted at an elevated oxygen atmospheric pressure, that is, 10 to 150 atm.

Abstract translation: 电接触材料通过含有超过5重量％Sn的Ag合金的内部氧化制成，在Pb或Zr的帮助下，其含量尽可能地为最小。 所述Sn含量的完全均匀的内部氧化主要是由于在升高的氧气氛压，即10至150大气压下进行的内部氧化获得的。

公开(公告)号：US5078810A

公开(公告)日：1992-01-07

申请号：US477347

申请日：1990-02-08

Applicant: Seiichi Tanaka ,  Teruo Hirata ,  Masaharu Yida

Inventor： Seiichi Tanaka ,  Teruo Hirata ,  Masaharu Yida

IPC: C23C8/10 ,  H01H1/0237

CPC classification number: C23C8/10 ,  H01H1/02376 ,  Y10T428/12896

Abstract: Novel Ag-SnO electrical contact materials are disclosed, which are made of Ag alloys consisting of 5-20 weight % of Sn and a balance of Ag, the alloys having been prepared by melting and having been internal oxidized. Novel manufacturing methods are also disclosed, in which internal-oxidation is conducted in an oxygen atmosphere of 10 atm to 200 atm, and at a temperature of 750.degree. C. to 500.degree. C.

Abstract translation: 公开了新的Ag-SnO电接触材料，其由由5-20重量％的Sn和余量的Ag组成的Ag合金制成，所述合金通过熔化制备并已被内部氧化。 还公开了新的制造方法，其中内氧化在10atm至200atm的氧气氛中，在750℃至500℃的温度下进行。

公开(公告)号：US5147728A

公开(公告)日：1992-09-15

申请号：US726314

申请日：1991-07-05

Applicant: Seiichi Tanaka ,  Teruo Hirata ,  Masaharu Yida

Inventor： Seiichi Tanaka ,  Teruo Hirata ,  Masaharu Yida

IPC: C22C5/06 ,  H01H1/0237

CPC classification number: H01H1/02376 ,  C22C5/06 ,  Y10S428/929 ,  Y10T428/12486

Abstract: Novel Ag-SnO electrical contact materials are disclosed, which are made of Ag alloys consisting of 5-20 weight % of Sn and a balance of Ag, the alloys having been prepared by melting and having been internal oxidized. Novel manufacturing methods are also disclosed, in which internal-oxidation is conducted in an oxygen atmosphere of 10 atm to 200 atm, and at a temperature of 750.degree. C. to 500.degree. C.

Abstract translation: 公开了新的Ag-SnO电接触材料，其由由5-20重量％的Sn和余量的Ag组成的Ag合金制成，所述合金通过熔化制备并已被内部氧化。 还公开了新的制造方法，其中内氧化在10atm至200atm的氧气氛中，在750℃至500℃的温度下进行。