GB683793A - Improvements in or relating to vapour electric discharge devices - Google Patents

Improvements in or relating to vapour electric discharge devices

Info

Publication number
GB683793A
GB683793A GB822/51A GB82251A GB683793A GB 683793 A GB683793 A GB 683793A GB 822/51 A GB822/51 A GB 822/51A GB 82251 A GB82251 A GB 82251A GB 683793 A GB683793 A GB 683793A
Authority
GB
United Kingdom
Prior art keywords
metal
plating
oxidizing
electric discharge
vapour
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB822/51A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB683793A publication Critical patent/GB683793A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/20—Selection of substances for gas fillings; Specified operating pressures or temperatures

Abstract

After a metal has been coated with another metal by any conventional electroplating method, the process is continued by stoving, first in a non-oxidizing, then in an oxidizing, atmosphere. The plating may be chromium or beryllium on a base of iron-nickel-cobalt alloy, and the plated member is then heated in a non-oxidizing atmosphere such as dry hydrogen for at least half an hour, at 1000 DEG C-1200 DEG C, which causes the plating to diffuse into the underlying metal. Further similar heating in an oxidizing atmosphere such as wet hydrogen leaves the plating lightly surface-oxidized. The application described is to the metal parts of metal-glass seals for electric discharge rectifiers containing alkali-metal vapour, for protection against the corrosive action of the hot vapour. Specification 498,102, [Group XXXVI], and U.S.A. Specifications 1,368,584, 1,576,436, 1,615,023 and 2,489,891 are referred to.
GB822/51A 1950-02-15 1951-01-11 Improvements in or relating to vapour electric discharge devices Expired GB683793A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US683793XA 1950-02-15 1950-02-15

Publications (1)

Publication Number Publication Date
GB683793A true GB683793A (en) 1952-12-03

Family

ID=22082192

Family Applications (1)

Application Number Title Priority Date Filing Date
GB822/51A Expired GB683793A (en) 1950-02-15 1951-01-11 Improvements in or relating to vapour electric discharge devices

Country Status (3)

Country Link
BE (1) BE501198A (en)
FR (1) FR1035694A (en)
GB (1) GB683793A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5318297A (en) * 1990-07-05 1994-06-07 Prince Manufacturing, Inc. Golf club

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5318297A (en) * 1990-07-05 1994-06-07 Prince Manufacturing, Inc. Golf club

Also Published As

Publication number Publication date
BE501198A (en)
FR1035694A (en) 1953-08-27

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