CA957001A - Control system for vacuum furnaces - Google Patents

Control system for vacuum furnaces

Info

Publication number
CA957001A
CA957001A CA126,283A CA126283A CA957001A CA 957001 A CA957001 A CA 957001A CA 126283 A CA126283 A CA 126283A CA 957001 A CA957001 A CA 957001A
Authority
CA
Canada
Prior art keywords
control system
vacuum furnaces
furnaces
vacuum
control
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
CA126,283A
Other languages
English (en)
Other versions
CA126283S (en
Inventor
Paul Larsson
Carl Bergman
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.)
ABB Norden Holding AB
Original Assignee
Allmanna Svenska Elektriska AB
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 Allmanna Svenska Elektriska AB filed Critical Allmanna Svenska Elektriska AB
Application granted granted Critical
Publication of CA957001A publication Critical patent/CA957001A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1003—Use of special medium during sintering, e.g. sintering aid
    • B22F3/1007—Atmosphere
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
    • G05D16/202—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means actuated by an electric motor
    • 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
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/20—Use of vacuum
    • 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
    • B22F2203/00—Controlling
    • B22F2203/03—Controlling for feed-back

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Materials Engineering (AREA)
  • Furnace Details (AREA)
  • Powder Metallurgy (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
CA126,283A 1970-10-27 1971-10-27 Control system for vacuum furnaces Expired CA957001A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE14477/70A SE349858B (de) 1970-10-27 1970-10-27

Publications (1)

Publication Number Publication Date
CA957001A true CA957001A (en) 1974-10-29

Family

ID=20299179

Family Applications (1)

Application Number Title Priority Date Filing Date
CA126,283A Expired CA957001A (en) 1970-10-27 1971-10-27 Control system for vacuum furnaces

Country Status (13)

Country Link
US (1) US3736360A (de)
AT (1) AT311689B (de)
BE (1) BE774266A (de)
CA (1) CA957001A (de)
CH (1) CH542675A (de)
DE (1) DE2152489B2 (de)
FR (1) FR2113295A5 (de)
GB (1) GB1357580A (de)
IT (1) IT940043B (de)
LU (1) LU64131A1 (de)
NL (1) NL7114654A (de)
SE (1) SE349858B (de)
SU (1) SU566510A3 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922527A (en) * 1974-12-26 1975-11-25 Nat Forge Co Temperature control apparatus
US4011430A (en) * 1975-05-06 1977-03-08 National Forge Company Multizone electrical furnace methods and apparatus
US4158742A (en) * 1976-11-30 1979-06-19 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration General purpose rocket furnace
US4179618A (en) * 1976-12-01 1979-12-18 Kawasaki Jukogyo Kabushiki Kaisha Apparatus for ion-nitriding treatment
US4195820A (en) * 1978-04-10 1980-04-01 Pyreflex Corporation Precise thermal processing apparatus
US4205631A (en) * 1978-10-11 1980-06-03 Westinghouse Electric Corp. Pressure limiting control for an inlet draft fan in an electric power plant
DE2906678A1 (de) * 1979-02-21 1980-09-04 Kloeckner Humboldt Deutz Ag Verfahren und vorrichtung zum brennen eines kunstkohlekoerpers, insbesondere einer anode fuer die aluminium-schmelzfluss-elektrolyse
US4305756A (en) * 1980-01-14 1981-12-15 Witec Cayman Patents, Ltd. Method and means for removing binder from a green body
NL8800074A (nl) * 1988-01-14 1989-08-01 Philips Nv Inrichting en werkwijze voor het verwijderen van een organisch bindmiddel uit een pasta.
DE3910777C2 (de) * 1989-04-04 2001-08-09 Ald Vacuum Techn Ag Induktionsofen mit einem metallischen Tiegel
GB8907994D0 (en) * 1989-04-10 1989-05-24 Torvac Furnaces Ltd Vacuum furnace
SE516529C2 (sv) * 1995-11-07 2002-01-22 Sandvik Ab Effektstyrning vid ugn
KR20100082170A (ko) * 2009-01-08 2010-07-16 삼성전자주식회사 실리콘 산화막 패턴 및 소자 분리막 형성 방법
DE102011103748A1 (de) 2011-05-31 2012-12-06 Ipsen International Gmbh Verfahren zur Steuerung von Vakuumpumpen in einer Industrieofenanlage
EP2610354A1 (de) * 2011-12-29 2013-07-03 Ipsen, Inc. Ausgleichsheizelementanordnung für einen Vakuumwärmebehandlungsofen
EP2610570B1 (de) * 2011-12-29 2016-11-23 Ipsen, Inc. Heizelementanordnung für einen Vakuumwärmebehandlungsofen
JP6631080B2 (ja) * 2015-08-11 2020-01-15 セイコーエプソン株式会社 焼結体の製造方法および加熱炉
CN108253780B (zh) * 2018-04-02 2023-12-15 宁波恒普技术股份有限公司 一种实现四区域控温的真空烧结炉
CN113606949A (zh) * 2021-07-29 2021-11-05 北京北方华创真空技术有限公司 多工位除气炉的抽真空系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291969A (en) * 1963-10-18 1966-12-13 Electroglas Inc Temperature control system for a diffusion furnace
US3428250A (en) * 1967-05-23 1969-02-18 Gen Electric Furnace control system

Also Published As

Publication number Publication date
US3736360A (en) 1973-05-29
BE774266A (fr) 1972-02-14
DE2152489A1 (de) 1972-05-31
CH542675A (de) 1973-10-15
GB1357580A (en) 1974-06-26
SE349858B (de) 1972-10-09
NL7114654A (de) 1972-05-02
FR2113295A5 (de) 1972-06-23
LU64131A1 (de) 1972-05-12
DE2152489B2 (de) 1975-01-09
IT940043B (it) 1973-02-10
SU566510A3 (ru) 1977-07-25
AT311689B (de) 1973-11-26

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