GB933206A - Improvements in or relating to coated iron alloy articles - Google Patents

Improvements in or relating to coated iron alloy articles

Info

Publication number
GB933206A
GB933206A GB3984261A GB3984261A GB933206A GB 933206 A GB933206 A GB 933206A GB 3984261 A GB3984261 A GB 3984261A GB 3984261 A GB3984261 A GB 3984261A GB 933206 A GB933206 A GB 933206A
Authority
GB
United Kingdom
Prior art keywords
strip
alloy
chromium
nickel
aluminium
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
GB3984261A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB933206A publication Critical patent/GB933206A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/0022—Manufacture

Landscapes

  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

<PICT:0933206/III/1> Chromium-nickel-iron alloy articles, e.g. electrodes for discharge tubes, strip or tape are provided with a black surface of an alloy of aluminium with iron or nickel by applying a coating of aluminium lacquer and then heating in a reducing atmosphere: alloy formation is said to be promoted by the presence of chromium. Chromium-nickel stainless steel strip 1 moves past spraying device 3 where aluminium lacquer 4 is applied to the strip. The strip is heated to 900 DEG -1000 DEG C. in furnace 5, for 5-10 minutes in a reducing atmosphere, e.g. a mixture of hydrogen and nitrogen supplied through pipe 6: subsequently strip 1 formed with black alloy 8 is wound on reel 7.
GB3984261A 1960-11-10 1961-11-07 Improvements in or relating to coated iron alloy articles Expired GB933206A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL257829 1960-11-10

Publications (1)

Publication Number Publication Date
GB933206A true GB933206A (en) 1963-08-08

Family

ID=19752687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3984261A Expired GB933206A (en) 1960-11-10 1961-11-07 Improvements in or relating to coated iron alloy articles

Country Status (1)

Country Link
GB (1) GB933206A (en)

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