US3470035A - Heat treatment of metal - Google Patents

Heat treatment of metal Download PDF

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Publication number
US3470035A
US3470035A US425198A US3470035DA US3470035A US 3470035 A US3470035 A US 3470035A US 425198 A US425198 A US 425198A US 3470035D A US3470035D A US 3470035DA US 3470035 A US3470035 A US 3470035A
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US
United States
Prior art keywords
bag
article
heat
air
workpiece
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 - Lifetime
Application number
US425198A
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English (en)
Inventor
Walter Maknis
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.)
Individual
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Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3470035A publication Critical patent/US3470035A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
    • C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
    • 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
    • C22F1/008—Using a protective surface layer

Definitions

  • the method of heat treating a metal article which is subject to objectionable surface deterioration from contact with air at elevated, heat-treating temperatures, and of inhibiting such deterioration which comprises enclosing the article in the air in a bag of a thin, flexible oxidizablemetal sheet open along one edge only, pressing the bag about the article to reduce the air content of the bag, closing said open edge of the bag and without including in the bag any separate oxygen-removing material, thereafter heat treating the article by subjecting the article and bag in an atmosphere deleterious to the surface of the article to a heat-treating elevated temperature without previously having exhausted the air from within the bag and so as to substantially inhibit said atmosphere at the heat treating temperature from reaching said article in its deleterious form, and While said bag contains air at atmospheric pressure, and thereafter removing the bag from the article.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Articles (AREA)
US425198A 1965-01-13 1965-01-13 Heat treatment of metal Expired - Lifetime US3470035A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42519865A 1965-01-13 1965-01-13

Publications (1)

Publication Number Publication Date
US3470035A true US3470035A (en) 1969-09-30

Family

ID=23685582

Family Applications (1)

Application Number Title Priority Date Filing Date
US425198A Expired - Lifetime US3470035A (en) 1965-01-13 1965-01-13 Heat treatment of metal

Country Status (7)

Country Link
US (1) US3470035A (el)
BE (1) BE674621A (el)
CH (1) CH453403A (el)
DE (1) DE1508435A1 (el)
FR (1) FR1466648A (el)
GB (1) GB1135626A (el)
SE (1) SE309254B (el)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160222498A1 (en) * 2015-02-04 2016-08-04 Spirit Aerosystems, Inc. Localized heat treating of net shape titanium parts
CN108660300A (zh) * 2017-03-27 2018-10-16 青海大学 一种防止金属圆筒热处理吸气劣化和减少变形的方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4986956A (en) * 1989-11-27 1991-01-22 Stone & Webster Engineering Corporation Passive nuclear power plant containment system
FR2669040B1 (fr) * 1990-11-08 1994-04-29 Prunier Robert Procede et moule pour le recuit de pieces metalliques.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1047616A (en) * 1911-10-10 1912-12-17 Sherard Osborn Cowper-Coles Scaling and annealing metals.
US1815691A (en) * 1928-10-31 1931-07-21 Western Electric Co Method of heat treating metal parts
GB539556A (en) * 1940-03-18 1941-09-16 Gen Electric Co Ltd Improvements in the bright annealing of copper and its alloys
GB783953A (en) * 1952-07-11 1957-10-02 Onera (Off Nat Aerospatiale) Improvements in methods of treating metallic pieces
US3092524A (en) * 1956-08-15 1963-06-04 Nat Distillers Chem Corp Heat treating articles wrapped in a metallic envelope
US3130089A (en) * 1960-07-05 1964-04-21 Ryan Aeronautical Co Heat treatment of preformed finishmachined articles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1047616A (en) * 1911-10-10 1912-12-17 Sherard Osborn Cowper-Coles Scaling and annealing metals.
US1815691A (en) * 1928-10-31 1931-07-21 Western Electric Co Method of heat treating metal parts
GB539556A (en) * 1940-03-18 1941-09-16 Gen Electric Co Ltd Improvements in the bright annealing of copper and its alloys
GB783953A (en) * 1952-07-11 1957-10-02 Onera (Off Nat Aerospatiale) Improvements in methods of treating metallic pieces
US3092524A (en) * 1956-08-15 1963-06-04 Nat Distillers Chem Corp Heat treating articles wrapped in a metallic envelope
US3130089A (en) * 1960-07-05 1964-04-21 Ryan Aeronautical Co Heat treatment of preformed finishmachined articles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160222498A1 (en) * 2015-02-04 2016-08-04 Spirit Aerosystems, Inc. Localized heat treating of net shape titanium parts
US9951405B2 (en) * 2015-02-04 2018-04-24 Spirit Aerosystems, Inc. Localized heat treating of net shape titanium parts
CN108660300A (zh) * 2017-03-27 2018-10-16 青海大学 一种防止金属圆筒热处理吸气劣化和减少变形的方法

Also Published As

Publication number Publication date
FR1466648A (fr) 1967-01-20
SE309254B (el) 1969-03-17
BE674621A (el) 1966-06-30
CH453403A (fr) 1968-06-14
DE1508435A1 (de) 1969-10-30
GB1135626A (en) 1968-12-04

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