GB1202748A - Improvements in or relating to an electrical system for preventing arcing in a high intensity glow discharge apparatus - Google Patents

Improvements in or relating to an electrical system for preventing arcing in a high intensity glow discharge apparatus

Info

Publication number
GB1202748A
GB1202748A GB50682/67A GB5068267A GB1202748A GB 1202748 A GB1202748 A GB 1202748A GB 50682/67 A GB50682/67 A GB 50682/67A GB 5068267 A GB5068267 A GB 5068267A GB 1202748 A GB1202748 A GB 1202748A
Authority
GB
United Kingdom
Prior art keywords
voltage
supply
current
resistor
electrode
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
GB50682/67A
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.)
Elektrophysikalische Anstalt Bernhard Berghaus
Original Assignee
Elektrophysikalische Anstalt Bernhard Berghaus
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 Elektrophysikalische Anstalt Bernhard Berghaus filed Critical Elektrophysikalische Anstalt Bernhard Berghaus
Publication of GB1202748A publication Critical patent/GB1202748A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes
    • H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
    • H01J37/32018—Glow discharge
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/36—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases using ionised gases, e.g. ionitriding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes
    • H01J37/34—Gas-filled discharge tubes operating with cathodic sputtering

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

1,202,748. Protective arrangements. ELEKTROPHYSIKALISCHE - ANSALT BERNHARD BERGHAUS. 7 Nov., 1967 [8 Nov., 1966], No. 50682/67. Heading H2K. A system for preventing arcing in a highintensity glow discharge apparatus 2 having an electrode which is connected to a workpiece and a current source 1, comprises means 6 for producing a potential difference representative of the current flowing to the electrode, a circuit which is set to produce an output voltage indicative of a safe burning voltage, and means for interrupting the supply to the electrode when the potential difference exceeds the output voltage, i.e. when the current/voltage relationship of the discharge falls within an area determined by a curve of the safe operating characteristic of the apparatus. As shown, a transistor 3 has its emitter collector path connected in series with resistors 7, 8 and a bias source 11 across a resistance 6. The emitter-base path is connected in series with the resistor 8 and the source 11 across part of a voltage divider 9, 10 connected across the supply circuit so that the current through the transistor depends on the supply voltage and produces a voltage across the resistor 7 in opposition to that produced by the voltage across the resistor 6 due to the discharge current. A Schmitt trigger 4 is responsive to the resultant voltage and controls the operation of a quick-acting switch, e.g. a grid-controlled rectifier, to cause a brief interruption of the supply or final interruption of the supply in the event of frequent repetitions of the arcing disturbance. Three similar circuits may be used for a three-phase apparatus, the transistor outputs being connected in parallel.
GB50682/67A 1966-11-08 1967-11-07 Improvements in or relating to an electrical system for preventing arcing in a high intensity glow discharge apparatus Expired GB1202748A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ32190A DE1275228B (en) 1966-11-08 1966-11-08 Process for monitoring the electrical behavior of a high-current glow discharge for metallurgical processes and equipment for them

Publications (1)

Publication Number Publication Date
GB1202748A true GB1202748A (en) 1970-08-19

Family

ID=7204389

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50682/67A Expired GB1202748A (en) 1966-11-08 1967-11-07 Improvements in or relating to an electrical system for preventing arcing in a high intensity glow discharge apparatus

Country Status (8)

Country Link
US (1) US3579029A (en)
AT (1) AT284990B (en)
BE (1) BE705442A (en)
CH (1) CH499825A (en)
DE (1) DE1275228B (en)
GB (1) GB1202748A (en)
LU (1) LU54687A1 (en)
NL (1) NL153410B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH561285A5 (en) * 1973-02-19 1975-04-30 Berghaus Bernhard Elektrophysi
US4142957A (en) * 1976-02-18 1979-03-06 Klockner Ionon Gmbh Method and arrangement for heating workpieces to desired temperatures
DE2606395C3 (en) * 1976-02-18 1979-01-18 Ionit Anstalt Bernhard Berghaus, Vaduz Method and device for monitoring the electrical behavior of a high-current glow discharge
DE2606396C3 (en) * 1976-02-18 1979-01-04 Ionit Anstalt Bernhard Berghaus, Vaduz Device for heating up and setting a specified treatment temperature of workpieces by means of a high-current glow discharge
US4476373A (en) * 1978-10-06 1984-10-09 Wellman Thermal Systems Corporation Control system and method of controlling ion nitriding apparatus
FR2497038A1 (en) * 1980-12-19 1982-06-25 Frager Jean POWER CURRENT GENERATOR, IN PARTICULAR FOR DISCHARGE PROCESS IN A RAREFIRED ATMOSPHERE
US4810936A (en) * 1986-12-01 1989-03-07 Hubbell Incorporated Failing lamp monitoring and deactivating circuit
DE29520685U1 (en) * 1995-12-29 1997-04-24 Strämke, Siegfried, Dr.-Ing., 52538 Selfkant Circuit arrangement for operating a glow discharge path
AU5438000A (en) * 2000-06-13 2001-12-24 Asm Technology Singapore Pte Ltd. A method of and apparatus for monitoring a ball forming process
DE102014213744A1 (en) * 2014-07-15 2016-01-21 Primetals Technologies Germany Gmbh Electric arc furnace with a safety device and method for securing peripheral devices to electric arc furnaces

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE543129A (en) * 1953-12-09
US3017564A (en) * 1954-08-12 1962-01-16 Barney Walter Protective circuit
AT219733B (en) * 1954-11-06 1962-02-12 Berghaus Elektrophysik Anst Device for carrying out processes by means of electrical glow discharges
US2955237A (en) * 1956-07-13 1960-10-04 Telephone Mfg Co Ltd Fault indicating circuits
US3300689A (en) * 1962-12-21 1967-01-24 Westinghouse Canada Ltd Voltage sensing circuit
US3303412A (en) * 1964-01-30 1967-02-07 Forbro Design Corp Current regulated power supply with compensating means for extraneous shunting current paths across the load
DE1199889B (en) * 1964-04-11 1965-09-02 Philips Patentverwaltung Circuit arrangement for triggering a lightning-like shock discharge in a gas discharge path
US3339111A (en) * 1965-05-20 1967-08-29 Jr Albert W Possner Redundant triggering circuit for a crowbar arc discharge switch

Also Published As

Publication number Publication date
US3579029A (en) 1971-05-18
CH499825A (en) 1970-11-30
NL153410B (en) 1977-05-16
DE1275228B (en) 1968-08-14
LU54687A1 (en) 1968-01-26
NL6715084A (en) 1968-05-09
AT284990B (en) 1970-10-12
BE705442A (en) 1968-03-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee