GB964105A - Improvements in or relating to getters - Google Patents

Improvements in or relating to getters

Info

Publication number
GB964105A
GB964105A GB39018/60A GB3901860A GB964105A GB 964105 A GB964105 A GB 964105A GB 39018/60 A GB39018/60 A GB 39018/60A GB 3901860 A GB3901860 A GB 3901860A GB 964105 A GB964105 A GB 964105A
Authority
GB
United Kingdom
Prior art keywords
grain size
hydride
weight
mms
nov
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
GB39018/60A
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 GB964105A publication Critical patent/GB964105A/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
    • H01J7/183—Composition or manufacture of getters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/22—Means for obtaining or maintaining the desired pressure within the tube
    • H01J17/24—Means for absorbing or adsorbing gas, e.g. by gettering

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Powder Metallurgy (AREA)
  • Discharge Lamp (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

964,105. Discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 14, 1960 [Nov. 17, 1959], No. 39018/60. Heading H1D. A method of manufacturing a non-evaporating getter, e.g. for an electric discharge tube, comprises mixing a gettering metal in hydride form consisting of the hydride of one or more of the metals zirconium, hafnium or titanium, or their alloys, of a grain size smaller than 5Á, with tungsten powder of a considerably smaller grain size, in a weight ratio of approximately 2 : 3, compressing the mixture into blocks, granulating the blocks and subsequently compressing to form tablets or pills of a desired weight, or in a container of a desired shape, those grains produced having a diameter of from approximately 0.1 to 0.5 mms. Finely-divided nickel powder may be added to the mixture in a proportion of 5-15% by weight. In a specific example zirconium hydride of grain size 2Á, tungsten powder of grain size 1Á and nickel powder of grain size 4Á are mixed and compressed into cylinders. The cylinders are subsequently ground and the fraction 0.125 to 0.5 mms. transported to a tableting machine which compresses tablets into a nickel-plated iron tape. The getter is activated at 700-900‹ C. in a discharge tube, hydrogen which is evolved being pumped off. Gases gettered include hydrogen, carbon monoxide, nitrogen and oxygen.
GB39018/60A 1959-11-17 1960-11-14 Improvements in or relating to getters Expired GB964105A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL245463 1959-11-17

Publications (1)

Publication Number Publication Date
GB964105A true GB964105A (en) 1964-07-15

Family

ID=19752035

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39018/60A Expired GB964105A (en) 1959-11-17 1960-11-14 Improvements in or relating to getters

Country Status (4)

Country Link
US (1) US3082174A (en)
CH (1) CH407343A (en)
DE (1) DE1152485B (en)
GB (1) GB964105A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE625037A (en) * 1961-11-21
BE792371A (en) * 1971-12-08 1973-03-30 Gen Electric NUCLEAR FUEL CARTRIDGE
BE792373A (en) * 1971-12-08 1973-03-30 Gen Electric NUCLEAR FUEL CARTRIDGE
US4118542A (en) * 1977-01-17 1978-10-03 Wall Colmonoy Corporation Controlled atmosphere and vacuum processes
JP4327747B2 (en) * 2005-02-21 2009-09-09 双葉電子工業株式会社 Electronic device having non-evaporable getter and method for manufacturing the electronic device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL41681C (en) * 1931-10-22
FR978830A (en) * 1948-02-25 1951-04-18 Rca Corp Zirconium Coating Improvements for Electronic Discharge Devices
BE532147A (en) * 1953-09-30
NL181727B (en) * 1953-09-30 Krupp Koppers Gmbh PROCEDURE FOR OPERATING EXTRACTION AND / OR EXTRACTIVE DISTILLATION DEVICES, USING N-SUBSTITUATED MORPHOLINS AS A SELECTIVE SOLVENT.

Also Published As

Publication number Publication date
DE1152485B (en) 1963-08-08
US3082174A (en) 1963-03-19
CH407343A (en) 1966-02-15

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