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GB768855A - A process and furnace for oxide-free heating of metal articles - Google Patents

A process and furnace for oxide-free heating of metal articles

Info

Publication number
GB768855A
GB768855A GB32097/54A GB3209754A GB768855A GB 768855 A GB768855 A GB 768855A GB 32097/54 A GB32097/54 A GB 32097/54A GB 3209754 A GB3209754 A GB 3209754A GB 768855 A GB768855 A GB 768855A
Authority
GB
United Kingdom
Prior art keywords
blanks
furnace
molten glass
drum
lugs
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
GB32097/54A
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
Original Assignee
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
Publication of GB768855A publication Critical patent/GB768855A/en
Expired 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
    • C21D9/0031—Rotary furnaces with horizontal or slightly inclined axis
    • 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
    • C21D1/34—Methods of heating
    • C21D1/44—Methods of heating in heat-treatment baths
    • 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
    • C21D1/34—Methods of heating
    • C21D1/44—Methods of heating in heat-treatment baths
    • C21D1/46—Salt baths
    • 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
    • C21D1/34—Methods of heating
    • C21D1/52—Methods of heating with flames
    • 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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Surface Treatment Of Glass (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Coating With Molten Metal (AREA)

Abstract

768,855. Heating baths. BALESTRA, O. Nov. 5, 1954 [Nov. 13, 1953; March 20, 1954; Oct. 27, 1954], No. 32097/54. Class 72 [Also in Groups XII, XIII and XXVIII] In the heat treatment without oxidation of metal articles such as steel blanks P, they are heated in a rotary drum furnace 1 containing a bath B of molten glass, and provided with axial openings 2 and 3 for their introduction and removal a burner R, and a number of transverse segmental lugs 5 spaced apart along the drum. The lugs are formed with concave seats 6 for the blanks and also with sloping sides 7 the inclination of which varies in sets along the furnace axis. Rotation of the furnace through 180 degrees in the direction of the arrow (Fig. 2) rolls the blanks off the seats 6 into the molten glass and reversal into the original position rolls the glasscoated blanks back on to the seats. The blanks are gradually traversed along the drum due to the changing inclination of the side 7. In a modification, Fig. 4 (not shown), lugs 5 are provided only at each end, the blanks being traversed through the drum by any suitable implements. A further modification, Fig. 7 (not shown), has only one lug 5 at the discharge end. The blanks are heated partly by the burner flame, and partly by their immersion in the molten glass. The layer of molten glass formed on the blanks protects them from oxidation outside the bath and has a hot pickling action in that it absorbs any oxide film.
GB32097/54A 1953-11-13 1954-11-05 A process and furnace for oxide-free heating of metal articles Expired GB768855A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT327376X 1953-11-13
IT200354X 1954-03-20

Publications (1)

Publication Number Publication Date
GB768855A true GB768855A (en) 1957-02-20

Family

ID=26327377

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32097/54A Expired GB768855A (en) 1953-11-13 1954-11-05 A process and furnace for oxide-free heating of metal articles

Country Status (11)

Country Link
US (1) US2832700A (en)
BE (1) BE533254A (en)
CA (1) CA540098A (en)
CH (1) CH327376A (en)
DE (1) DE1075651B (en)
FR (1) FR1106448A (en)
GB (1) GB768855A (en)
IT (3) IT524856A (en)
LU (1) LU33204A1 (en)
NO (1) NO91951A (en)
SE (1) SE170972C1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3001508A (en) * 1958-08-13 1961-09-26 Ernest F Elliott Molten material coating furnace
US3080649A (en) * 1959-06-10 1963-03-12 Ernest F Elliott Continuous process of hot-forming metal
DE1150699B (en) * 1960-09-29 1963-06-27 Osvaldo Balestra Oven for oxidation-free heating of iron parts provided with a protective layer
FR2382502A1 (en) * 1977-03-02 1978-09-29 Pont A Mousson METHOD AND PLANT FOR THE HEAT TREATMENT OF ANNEALING OF CAST IRON PIPES WITH SPHEROIDAL OR LAMELLAR GRAPHITE
FR2462480A1 (en) * 1979-08-03 1981-02-13 Pont A Mousson PROCESS AND INSTALLATION FOR HANDLING CAST IRON PIPES OR STEEL TUBES DURING THEIR HEAT TREATMENT

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US376421A (en) * 1888-01-10 Edwin d
US862285A (en) * 1906-12-14 1907-08-06 Charles R Schmidt Method of enameling.
US1452635A (en) * 1918-06-10 1923-04-24 Berninghaus Eugene Method of enameling
AT89949B (en) * 1920-09-15 1922-11-10 Topf J A & Soehne Drying device.
US1916569A (en) * 1930-07-14 1933-07-04 Haller Carl Rotating furnace
DE600401C (en) * 1932-01-13 1934-07-21 Polte Fa Device for guiding hollow bodies open on one side through the front barrier of Blankgluehoefen
US2009165A (en) * 1932-09-20 1935-07-23 Cross Richard Watson Process and mixture for hardening steel
US1919136A (en) * 1933-02-15 1933-07-18 Smith Lloyd Raymond Enameled metal articles and method of producing them
US2235825A (en) * 1937-09-23 1941-03-25 Buffalo Bolt Company Method of pickling and liming ferrous articles
US2135934A (en) * 1937-12-17 1938-11-08 Buffalo Bolt Company Rotary furnace
US2182616A (en) * 1938-07-09 1939-12-05 American Electric Furnace Comp Apparatus for continuous heating and cooling of metals
US2628173A (en) * 1947-10-30 1953-02-10 Koppers Co Inc Method of coating metal articles with bituminous materials

Also Published As

Publication number Publication date
BE533254A (en)
SE170972C1 (en) 1960-04-05
CA540098A (en) 1957-04-30
FR1106448A (en) 1955-12-19
IT505391A (en)
LU33204A1 (en)
IT524900A (en)
IT524856A (en)
NO91951A (en)
US2832700A (en) 1958-04-29
CH327376A (en) 1958-01-31
DE1075651B (en) 1960-02-18

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