| 摘要 |
1,147,522. Glass to metal seals. NIPPON ELECTRIC CO. Ltd. 14 July, 1966 [31 July, 1965], No. 31737/66. Heading C1M. [Also in Divisions B3 and C7] A composite metal material to be sealed to glass comprises an iron-nickel or iron core, an intermediate coating of Sn, Cu, Ag or Au of 0À01 to 5 microns and a surface coating of Pd of 0À01 to 2 microns. The material may be heated to e.g. 750‹ C. in hydrogen. In examples an iron-nickel alloy coated with copper, silver or gold and then palladium was heated, treated in hydrogen and then sealed in air to a lead glass PbO 75; B 2 O 11; SiO 2 3; Al 2 O 3 11 in wt. percentages. Iron wire coated with silver and Pd was similarly heat treated in H 2 and sealed to a glass appropriate to an iron seal. |
