GB995821A - Improvements in and relating to electronic tubes - Google Patents

Improvements in and relating to electronic tubes

Info

Publication number
GB995821A
GB995821A GB239964A GB239964A GB995821A GB 995821 A GB995821 A GB 995821A GB 239964 A GB239964 A GB 239964A GB 239964 A GB239964 A GB 239964A GB 995821 A GB995821 A GB 995821A
Authority
GB
United Kingdom
Prior art keywords
strip
powder
sintered
feed device
nickel
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
GB239964A
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 Electronics UK Ltd
Original Assignee
Philips Electronic and Associated 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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB995821A publication Critical patent/GB995821A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/186—Getter supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
    • B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
    • 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
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/183—Composition or manufacture of getters
    • 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
    • H01J2893/0023—Manufacture carbonising and other surface treatments

Abstract

<PICT:0995821/C6-C7/1> <PICT:0995821/C6-C7/2> A coating of sintered nickel particles with a filling of gas-absorbent powder is applied to a strip 1 of iron or nickel by the apparatus shown. The strip 1 passes from a supply reel 2 beneath a feed device 3 which applies a layer 4 of glue which is dried by a heating plate 5. A magnetic feed device 6 contains carbonyl-nickel powder 7 which is deposited on the glue layer in small agglomerations 8 which are sintered in a furnace 9, through which a reducing atmosphere is passed from an inlet 10 to an outlet 11, to provide columns 12 of sintered particles, the spaces between which are filled with a powder 14 of zirconium hydride or titanium hydride with the optional addition of molybdenum or tungsten contained in a feed device 13. The strip is finally passed between rollers 15 and 16 which apply a pressure of about 10,000 kg./cm.2 to deform the columns 12 to form keeping surfaces for the powder 14. A coating of sintered nickel particles with a filling of chromium oxide may be applied to the reverse side of the strip 1 in the same way. The strip is used to form anodes for thermionic tubes (see Division H1).
GB239964A 1963-01-23 1964-01-20 Improvements in and relating to electronic tubes Expired GB995821A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL288112 1963-01-23

Publications (1)

Publication Number Publication Date
GB995821A true GB995821A (en) 1965-06-23

Family

ID=19754371

Family Applications (1)

Application Number Title Priority Date Filing Date
GB239964A Expired GB995821A (en) 1963-01-23 1964-01-20 Improvements in and relating to electronic tubes

Country Status (8)

Country Link
AT (1) AT250519B (en)
CH (1) CH417780A (en)
DE (1) DE1270698B (en)
DK (1) DK112398B (en)
ES (1) ES295549A1 (en)
GB (1) GB995821A (en)
IT (1) IT713587A (en)
NL (1) NL288112A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4925741A (en) * 1989-06-08 1990-05-15 Composite Materials Technology, Inc. Getter wire
WO1998043269A1 (en) * 1997-03-25 1998-10-01 Saes Getters S.P.A. Process for the production of flat-screen grids coated with non-evaporable getter materials and grids thereby obtained
US6186849B1 (en) 1998-03-24 2001-02-13 Saes Getters S.P.A. Process for the production of flat-screen grids coated with non-evaporable getter materials and grids thereby obtained

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7707079A (en) * 1977-06-27 1978-12-29 Philips Nv ELECTRIC LAMP.
DE3235681C2 (en) * 1981-11-02 1986-04-24 Maja Feodos'evna Bojarina Non-evaporable getter material
DE3335602A1 (en) * 1983-09-30 1985-04-18 Siemens AG, 1000 Berlin und 8000 München GAS DISCHARGE ARRESTER AND MANUFACTURING METHOD
IT1283484B1 (en) * 1996-07-23 1998-04-21 Getters Spa METHOD FOR THE PRODUCTION OF THIN SUPPORTED LAYERS OF NON-EVAPORABLE GETTER MATERIAL AND GETTER DEVICES THUS PRODUCED

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL59642C (en) * 1941-03-24
NL93264C (en) * 1953-09-30
AT223715B (en) * 1959-11-17 1962-10-10 Philips Nv Process for the production of a non-evaporating gas binder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4925741A (en) * 1989-06-08 1990-05-15 Composite Materials Technology, Inc. Getter wire
WO1998043269A1 (en) * 1997-03-25 1998-10-01 Saes Getters S.P.A. Process for the production of flat-screen grids coated with non-evaporable getter materials and grids thereby obtained
US6186849B1 (en) 1998-03-24 2001-02-13 Saes Getters S.P.A. Process for the production of flat-screen grids coated with non-evaporable getter materials and grids thereby obtained

Also Published As

Publication number Publication date
IT713587A (en)
NL288112A (en)
DE1270698B (en) 1968-06-20
ES295549A1 (en) 1964-03-01
AT250519B (en) 1966-11-10
DK112398B (en) 1968-12-09
CH417780A (en) 1966-07-31

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