SE8204124L - GAS WELDING CATHOD AND MANUFACTURING PROCEDURES - Google Patents

GAS WELDING CATHOD AND MANUFACTURING PROCEDURES

Info

Publication number
SE8204124L
SE8204124L SE8204124A SE8204124A SE8204124L SE 8204124 L SE8204124 L SE 8204124L SE 8204124 A SE8204124 A SE 8204124A SE 8204124 A SE8204124 A SE 8204124A SE 8204124 L SE8204124 L SE 8204124L
Authority
SE
Sweden
Prior art keywords
temperature
cathode
layer
cathod
gas welding
Prior art date
Application number
SE8204124A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE453033B (en
SE8204124D0 (en
Inventor
Grigory Anisimovich Machulka
Nikolay Nikolaevich Repnikov
Svetlana Dmitrievna Soboleva
Rady Konstantinovich Chuzhko
Pavel Grigorievich Tsyba
Gennady Ivanovich Demichev
Mikhail Alexandrovich Fenin
Original Assignee
Grigory Anisimovich Machulka
Nikolay Nikolaevich Repnikov
Svetlana Dmitrievna Soboleva
Rady Konstantinovich Chuzhko
Pavel Grigorievich Tsyba
Gennady Ivanovich Demichev
Mikhail Alexandrovich Fenin
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 Grigory Anisimovich Machulka, Nikolay Nikolaevich Repnikov, Svetlana Dmitrievna Soboleva, Rady Konstantinovich Chuzhko, Pavel Grigorievich Tsyba, Gennady Ivanovich Demichev, Mikhail Alexandrovich Fenin filed Critical Grigory Anisimovich Machulka
Publication of SE8204124D0 publication Critical patent/SE8204124D0/en
Publication of SE8204124L publication Critical patent/SE8204124L/en
Publication of SE453033B publication Critical patent/SE453033B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/038—Electrodes, e.g. special shape, configuration or composition
    • H01S3/0388—Compositions, materials or coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/038—Electrodes, e.g. special shape, configuration or composition
    • H01S3/0382—Cathodes or particular adaptations thereof

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Lasers (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

GAS LASER CATHODE AND PROCESS FOR MAKING SAME A gas laser cathode shaped at a sleeve with a three -layer wall from carbides of metals of the side subgroup of Group V of the Periodic System. The external layers of the three-layer structure have a composition MeC0.74 to 0.95, the internal layer MeC0.92 to 0.98 respectively or said second layer is made from a semicarbide MeC0.5. The process for producing the cathode comprises heating a graphite blank in an atmosphere of tantalum or niobium pentachloride and argon to a temperature within the range of from 2,300 to 2,500.degree.C and maintaining at this temperature for a period of from 5 to 8 hours. Another embodiment of the process for making the cathode according to the present invention comprises heating a tantalum or niobium blank in the atmosphere of argon to a temperature within the range of from 2,000 to 2,200.degree.C and maintaining at this temperature for 5 to 10 hours.
SE8204124A 1982-07-01 1982-07-02 GAS WELDING CATHOD AND PROCEDURES FOR PRODUCING THEREOF SE453033B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823224644 DE3224644A1 (en) 1982-07-01 1982-07-01 Cathode for gas lasers and method for producing it

Publications (3)

Publication Number Publication Date
SE8204124D0 SE8204124D0 (en) 1982-07-02
SE8204124L true SE8204124L (en) 1984-01-03
SE453033B SE453033B (en) 1988-01-04

Family

ID=6167373

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8204124A SE453033B (en) 1982-07-01 1982-07-02 GAS WELDING CATHOD AND PROCEDURES FOR PRODUCING THEREOF

Country Status (5)

Country Link
JP (1) JPS5914686A (en)
CA (1) CA1194586A (en)
DE (1) DE3224644A1 (en)
FR (1) FR2530088A1 (en)
SE (1) SE453033B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3642749A1 (en) * 1986-12-15 1988-06-23 Eltro Gmbh SURFACES FOR ELECTRICAL DISCHARGE
CA1272504A (en) * 1986-11-18 1990-08-07 Franz Prein Surface for electric discharge
US5282332A (en) * 1991-02-01 1994-02-01 Elizabeth Philips Stun gun
WO1999001890A1 (en) * 1997-07-03 1999-01-14 Hamamatsu Photonics K.K. Discharge tube and method of calibrating laser wavelength by using the same

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB974447A (en) * 1962-02-13 1964-11-04 High Temperature Materials Inc Metallic carbides and a process of producing the same
BE651736A (en) * 1963-08-13
US3399980A (en) * 1965-12-28 1968-09-03 Union Carbide Corp Metallic carbides and a process of producing the same
GB1396455A (en) * 1972-05-04 1975-06-04 Toyoda Chuo Kenkyusho Kk Method of forming a carbide layer
DE2303358A1 (en) * 1973-01-24 1974-07-25 Patra Patent Treuhand COLD CATHODE LASER
CA1017531A (en) * 1973-05-02 1977-09-20 Ppg Industries, Inc. Preparation of finely-divided refractory powders
US3991385A (en) * 1975-02-03 1976-11-09 Owens-Illinois, Inc. Gas laser with sputter-resistant cathode
US4017808A (en) * 1975-02-10 1977-04-12 Owens-Illinois, Inc. Gas laser with sputter-resistant cathode
US4085385A (en) * 1975-03-21 1978-04-18 Owens-Illinois, Inc. Gaseous laser device with damage-resistant cathode
GB1579249A (en) * 1977-05-18 1980-11-19 Denki Kagaku Kogyo Kk Thermionic cathodes

Also Published As

Publication number Publication date
SE453033B (en) 1988-01-04
SE8204124D0 (en) 1982-07-02
FR2530088B1 (en) 1985-02-01
DE3224644C2 (en) 1989-05-24
JPS643350B2 (en) 1989-01-20
DE3224644A1 (en) 1984-01-05
JPS5914686A (en) 1984-01-25
CA1194586A (en) 1985-10-01
FR2530088A1 (en) 1984-01-13

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