EP0180010A3 - Processing materials in furnaces - Google Patents

Processing materials in furnaces Download PDF

Info

Publication number
EP0180010A3
EP0180010A3 EP85111305A EP85111305A EP0180010A3 EP 0180010 A3 EP0180010 A3 EP 0180010A3 EP 85111305 A EP85111305 A EP 85111305A EP 85111305 A EP85111305 A EP 85111305A EP 0180010 A3 EP0180010 A3 EP 0180010A3
Authority
EP
European Patent Office
Prior art keywords
metal
catalyst
screening
workpiece
boat
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.)
Withdrawn
Application number
EP85111305A
Other languages
German (de)
French (fr)
Other versions
EP0180010A2 (en
Inventor
Robert Donald Macinnes
Robert Lewis Rohr
Helen Li Yeh
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of EP0180010A2 publication Critical patent/EP0180010A2/en
Publication of EP0180010A3 publication Critical patent/EP0180010A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0025—Supports; Baskets; Containers; Covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/26—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/003—Linings or walls comprising porous bricks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F27D5/0068—Containers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Details (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A structure is shown for achieving low oxygen content high quality atmosphere surrounding a workpiece as it is processed in the reducing atmosphere of a furnace. The structure is a container which encloses the workpiece and functions as a catalyst for the reaction of H2 and O2 in an H2 containing atmosphere, i e., H2 and forming gas, etc.
The structure of the enclosure or container includes a bottom tray or boat 10 which is coated with a metal such as platinum and a top or cover 12 made from metal screening or metal coated screening which metal may also be plati­ num. The bottom tray may also be composed of mesh or screening material as an alternative to being solid. Platinum is a preferred embodiment for the metal boat and screen because it is an excellent catalyst for the reaction of O2 and H2 and is active at temperatures at least as low as 150°C. One or more workpieces may be disposed in the boat so they are surrounded by the catalyst metal. The catalyst reaction depends upon gas contact with the surface, and the screening offers a large surface area which enhances this contact while still allowing the furnace gases to flow and convectively heat the workpiece.
EP85111305A 1984-10-26 1985-09-06 Processing materials in furnaces Withdrawn EP0180010A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66540484A 1984-10-26 1984-10-26
US665404 1984-10-26

Publications (2)

Publication Number Publication Date
EP0180010A2 EP0180010A2 (en) 1986-05-07
EP0180010A3 true EP0180010A3 (en) 1988-08-10

Family

ID=24669976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111305A Withdrawn EP0180010A3 (en) 1984-10-26 1985-09-06 Processing materials in furnaces

Country Status (2)

Country Link
EP (1) EP0180010A3 (en)
JP (1) JPS61107091A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH087656Y2 (en) * 1989-08-15 1996-03-04 千住金属工業株式会社 Reflow furnace
FR2728270B1 (en) * 1994-12-20 1997-01-24 Commissariat Energie Atomique HYBRIDIZATION OVEN FOR INTERCONNECTING COMPONENTS BY A FUSIBLE MATERIAL
EP1620197B1 (en) * 2003-04-23 2009-07-01 Volvo Aero Corporation Method for inhibiting contamination of a workpiece
SE526447C2 (en) * 2003-04-23 2005-09-20 Volvo Aero Corp Inhibiting contamination of workpiece used in aviation industry involves flushing/filling protective gas in container having workpiece and evacuating oven to reduce partial pressure for contaminant in container before workpiece is heated

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR40714E (en) * 1931-09-08 1932-08-22 Krupp Ag Thin sheet body, especially high-value material, such as stainless steel or refractory
US2131505A (en) * 1938-08-16 1938-09-27 Henry M Garsson Treating steel
US3232754A (en) * 1961-11-07 1966-02-01 Alloys Res & Mfg Corp Porous metallic bodies and fabrication methods therefor
DE1808236A1 (en) * 1967-11-11 1969-07-10 Nippon Kokan Kk Radiant heating furnace with regulation of the atmosphere
US4113240A (en) * 1976-01-16 1978-09-12 P. R. Mallory & Co. Inc. Continuous open-ended sintering furnace system
US4294436A (en) * 1979-09-05 1981-10-13 Kanto Yakin Kogyo Kabushiki Kaisha Furnace with protective atmosphere for heating metals

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR40714E (en) * 1931-09-08 1932-08-22 Krupp Ag Thin sheet body, especially high-value material, such as stainless steel or refractory
US2131505A (en) * 1938-08-16 1938-09-27 Henry M Garsson Treating steel
US3232754A (en) * 1961-11-07 1966-02-01 Alloys Res & Mfg Corp Porous metallic bodies and fabrication methods therefor
DE1808236A1 (en) * 1967-11-11 1969-07-10 Nippon Kokan Kk Radiant heating furnace with regulation of the atmosphere
US4113240A (en) * 1976-01-16 1978-09-12 P. R. Mallory & Co. Inc. Continuous open-ended sintering furnace system
US4294436A (en) * 1979-09-05 1981-10-13 Kanto Yakin Kogyo Kabushiki Kaisha Furnace with protective atmosphere for heating metals

Also Published As

Publication number Publication date
EP0180010A2 (en) 1986-05-07
JPS61107091A (en) 1986-05-24

Similar Documents

Publication Publication Date Title
DE3372356D1 (en) Process for the removal of hydrogen from gases
KR890015375A (en) Epitaxial reactor
ES8103718A1 (en) Gas-permeable refractory block and method of making this block.
US5439525A (en) Device for coating hollow workpieces by gas diffusion
EP0101421A3 (en) Fuel cell cathode
ZA835539B (en) Reaction mass,method for the manufacture thereof and use thereof
GB1471794A (en) Process for regenerating a solid reactant
GB1370707A (en) Nuclear fuel element
EP0180010A3 (en) Processing materials in furnaces
EP0478152B1 (en) Production of reduced titanium oxide
KR960002688A (en) Heat treatment equipment
Wallwork et al. Mapping of the oxidation products in the ternary Co-Cr-Al system
JPS56100114A (en) Alpha-type silicon nitride of high purity and its manufacture
CA2041297A1 (en) Converter and method for top blowing nonferrous metal
KR910700203A (en) Manufacturing Method of Zinc Oxide Whisker
ES8101649A1 (en) Process for decreasing the contaminant content of aluminium melts and aluminium alloy melts
FR2643114B1 (en)
JPS556476A (en) Atmosphere shielding method in ladle refining
JPS5726442A (en) Plasma thin film forming device
JPS5921374B2 (en) NOx suppression sintering operation method
ES414511A1 (en) Nuclear fuel element
GB1561161A (en) Processes for redusing the oxygen content of metal oxides
JPS5716155A (en) Free cutting sintered iron
KR940007272B1 (en) Jig for heat treatment
SU1276643A1 (en) Method of manufacturing metallized glass articles

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 19860819

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19880916

RIN1 Information on inventor provided before grant (corrected)

Inventor name: YEH, HELEN LI

Inventor name: MACINNES, ROBERT DONALD

Inventor name: ROHR, ROBERT LEWIS