HK58297A - In-situ generation of heat treating atmospheres using non-cryogenically produced nitrogen - Google Patents

In-situ generation of heat treating atmospheres using non-cryogenically produced nitrogen

Info

Publication number
HK58297A
HK58297A HK58297A HK58297A HK58297A HK 58297 A HK58297 A HK 58297A HK 58297 A HK58297 A HK 58297A HK 58297 A HK58297 A HK 58297A HK 58297 A HK58297 A HK 58297A
Authority
HK
Hong Kong
Prior art keywords
heat treating
situ generation
produced nitrogen
cryogenically produced
treating atmospheres
Prior art date
Application number
HK58297A
Other languages
English (en)
Inventor
Donald James Bowe
Brian Bernard Bonner
Diwakar Garg
Original Assignee
Air Prod & Chem
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 Air Prod & Chem filed Critical Air Prod & Chem
Publication of HK58297A publication Critical patent/HK58297A/xx

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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/14—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of noble metals or alloys based thereon
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Furnace Details (AREA)
  • Powder Metallurgy (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Ceramic Products (AREA)
  • Heat Treatment Of Articles (AREA)
HK58297A 1991-07-08 1997-05-01 In-situ generation of heat treating atmospheres using non-cryogenically produced nitrogen HK58297A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/727,806 US5221369A (en) 1991-07-08 1991-07-08 In-situ generation of heat treating atmospheres using non-cryogenically produced nitrogen

Publications (1)

Publication Number Publication Date
HK58297A true HK58297A (en) 1997-05-09

Family

ID=24924146

Family Applications (1)

Application Number Title Priority Date Filing Date
HK58297A HK58297A (en) 1991-07-08 1997-05-01 In-situ generation of heat treating atmospheres using non-cryogenically produced nitrogen

Country Status (15)

Country Link
US (3) US5221369A (ja)
EP (1) EP0522444B1 (ja)
JP (1) JPH07224322A (ja)
KR (1) KR950013284B1 (ja)
CN (1) CN1069332A (ja)
BR (1) BR9202531A (ja)
CA (1) CA2073137C (ja)
DE (1) DE69217421T2 (ja)
ES (1) ES2100254T3 (ja)
HK (1) HK58297A (ja)
MX (1) MX9204000A (ja)
MY (1) MY131267A (ja)
SG (1) SG50404A1 (ja)
TW (1) TW241308B (ja)
ZA (1) ZA925095B (ja)

Families Citing this family (231)

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US5613185A (en) * 1995-06-01 1997-03-18 Air Products And Chemicals, Inc. Atmospheres for extending life of wire mesh belts used in sintering powder metal components
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DE19738653A1 (de) * 1997-09-04 1999-03-11 Messer Griesheim Gmbh Verfahren und Vorrichtung zur Wärmebehandlung von Teilen
DE10050673C1 (de) * 2000-10-04 2002-04-18 Kohnle W Waermebehandlung Verfahren zum Anlassen von Werkstücken in einem Ofen unter einer Schutzgasatmoshäre
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FR2939448B1 (fr) * 2008-12-09 2011-05-06 Air Liquide Procede de production d'une atmosphere gazeuse pour le traitement des metaux.
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US5298089A (en) 1994-03-29
JPH07224322A (ja) 1995-08-22
EP0522444A2 (en) 1993-01-13
SG50404A1 (en) 1998-07-20
CA2073137A1 (en) 1993-01-09
MY131267A (en) 2007-07-31
DE69217421T2 (de) 1997-05-28
ZA925095B (en) 1994-01-10
US5221369A (en) 1993-06-22
MX9204000A (es) 1993-01-01
CN1069332A (zh) 1993-02-24
KR930002519A (ko) 1993-02-23
BR9202531A (pt) 1993-03-16
CA2073137C (en) 1996-12-17
TW241308B (ja) 1995-02-21
KR950013284B1 (ko) 1995-11-02
US5348593A (en) 1994-09-20
DE69217421D1 (de) 1997-03-27
ES2100254T3 (es) 1997-06-16
EP0522444A3 (en) 1993-02-24
EP0522444B1 (en) 1997-02-12

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