US3122828A - Conversion of heat-sensitive alloys with aid of a thermal barrier - Google Patents

Conversion of heat-sensitive alloys with aid of a thermal barrier Download PDF

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Publication number
US3122828A
US3122828A US251243A US25124363A US3122828A US 3122828 A US3122828 A US 3122828A US 251243 A US251243 A US 251243A US 25124363 A US25124363 A US 25124363A US 3122828 A US3122828 A US 3122828A
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United States
Prior art keywords
ingot
heat
alloy
rolling
shell
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Expired - Lifetime
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US251243A
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English (en)
Inventor
Charles J Havel
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Special Metals Inc
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Special Metals Inc
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Publication date
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Priority to US251243A priority Critical patent/US3122828A/en
Priority to DE19641452425 priority patent/DE1452425A1/de
Priority to FR956606A priority patent/FR1389139A/fr
Priority to BE644514A priority patent/BE644514A/xx
Application granted granted Critical
Publication of US3122828A publication Critical patent/US3122828A/en
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, rods or tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B47/00—Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal
    • B21B47/04—Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal for separating layers after rolling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S72/00—Metal deforming
    • Y10S72/70—Deforming specified alloys or uncommon metal or bimetallic work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4981—Utilizing transitory attached element or associated separate material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4981—Utilizing transitory attached element or associated separate material
    • Y10T29/49812—Temporary protective coating, impregnation, or cast layer

Definitions

  • neat-sensitive is here meant alloys having a relatively narrow temperature range of hot-working.
  • heat-sensitive alloys the conversion of which is very substantially improved by the carrying out of the present invention are nickel-base alloys of th so-called unworkable class, Udimet 700, Udimet 500, a variety of titanium alloys and certain cobalt-containing steels and certain tool steels of which BR4 is an outstanding example.
  • My improved procedure consists essentially in (a) enveloping the ingot within a relatively very thick-walled sleeve of suitable metal, e.g., steel (i.e., a can having a Wall thickness of the order of 0.75 inch); (5) subjecting the canned ingot to an extrusion or deepdrawing operation which reduces the diameter of the sleeve 'and'brings the latter into the most intimate overall contact with the surfaces of the ingot; (c) hot-rolling the canned ingot nearly to desired dimensions of the enveloped billet of heat-sensitive alloy; (d) stripping off the can; and (e) rolling to final dimensions and centerlessly grinding.
  • suitable metal e.g., steel
  • a condi ioning step may be desirable between steps (d) and (e), but I have found thatin generalno conditioning step is necessary at this stage. I have found in actual practice that the number or re-heats may be lessened by as much as percent, and that the over-all yield of finished stock may be increased from the conventional yield of say 48% to as much as 6065%.
  • 1 represents a six inch (1.13.) steel pipe having a wall thickness of approximately 0.75 inch, into which there have been slipped three ingots, 2:2, 2' and 2" of the aforesaid nickel-base alloy, each ingot having a diameter of 5.75 inches and each representing approximately 96 lbs. of alloy.
  • the ingots had been hot top cropped prior to insertion into the pipe, the length of which latter had been chosen so that the pipe would snugly accommodate the three ingots.
  • the ends of the pipe were sealed shut by means of circular steel discs 3, 3' welded at 4, 4, 4, 4, 4, to the ends of the pipe ll.
  • the cylindrical ingots 2, 2, 2" are cast in specially prepared molds, are hot top cropped, and then are slid into the thiclowalled steel pipe 51, as many ingots being placed in each pipe as needed for producing an extrusion billet of any desired length.
  • pipe 1 The ends of pipe 1 are sealed shut by welding on discs 3, 3 of 0.5 inch steel plate.
  • the resulting article is then extruded or drawn through a round die having such a diameter-preferably, about 3.5 inchesthat the diameters of steel pipe 1 and ingots 2, 2, and 2" are so reduced that the pipe is pressed into the most intimate over-all contact with the contained ingots, thereby producing a master billet 3.5 inches in diameter. Then the extrusion usually is cut to appropriate lengths of clad billet pieces.
  • the thermal barrier wall have a thickness of at least /6 of an inch after the last rolling operation.
  • the thick-walled thermal barrier has a wall thickness of at least of an inch at the start, and a wall thickness of at least A of an inch after the extrusion or drawing operation, and a wall thickness of of an inch after repeated rollings. This is in contrast to conventional canning in which the wall thickness may be as much as 0.06 inch at the start, and be reduced to 0.01 inch after extrusion, and ending up with a wall thickness of about 0.001 inch at the conclusion of the rolling operations.
  • the extrusion step may be carried out using conventional apparatus and following conventional extrusion procedure.
  • the cogging mill used for rolling the clad billet pieces may be equipped with either diamond, square or gothic passes.
  • the improvement which consists in enveloping the ingot in a metal shell having such wall thickness as materially to retard the setting up of a sharp temperature difierential between surface and interior of the ingot, hot-extruding or drawing the so-enveloped ingot through an extrusion or drawing die having such a size of opening as to compress said shell onto said ingot and materially to reduce the cross-sectional area of the enveloped ingot; thereafter hot-rolling the extruded or drawn article to approximately final cross-sectional size without in-process conditioning; and removing the shell from the resulting reduced billet.
  • the improvement which consists in enveloping the ingot in a metal. shell having such wall thickness as materially to retard the setting up of a sharp temperature difierential between surface and interior of the ingot, extruding or drawing the so-enveloped ingot through an extrusion or drawing die having such a size of opening as to compress said shell onto said ingot and materially to reduce the cross-sectional area of the enveloped ingot; thereafter rolling the extruded or drawn article to approximately final cross-sectional size without in-process conditioning; removing the shell from the resulting reduced billet and finish-rolling the un-clad article.
  • the improvement which consists in enveloping the ingot in a metal shell having such wall thickness as materially to retard the setting up of a sharp temperature differential between surface and interior of the ingot, extruding or drawing the so-enveloped ingot through an extrusion or drawing die having such a size of opening as to compress said shell onto said ingot and materially to reduce the cross-sectional area of the enveloped ingot; thereafter rolling the extruded or drawn article to approximately final cross-sectional size without in-process conditioning; and removing the shell from the resulting reduced billet conditioning all over and finish-rolling the un-clad article.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Metal Rolling (AREA)
  • Extrusion Of Metal (AREA)
US251243A 1963-01-14 1963-01-14 Conversion of heat-sensitive alloys with aid of a thermal barrier Expired - Lifetime US3122828A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US251243A US3122828A (en) 1963-01-14 1963-01-14 Conversion of heat-sensitive alloys with aid of a thermal barrier
DE19641452425 DE1452425A1 (de) 1963-01-14 1964-02-04 Verformung waermeempfindlicher Legierungen mit Hilfe einer thermischen Schwelle
FR956606A FR1389139A (fr) 1963-01-14 1964-02-28 Procédé de transformation d'alliages sensibles à la chaleur à l'aide d'une barrière thermique
BE644514A BE644514A (en, 2012) 1963-01-14 1964-02-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US251243A US3122828A (en) 1963-01-14 1963-01-14 Conversion of heat-sensitive alloys with aid of a thermal barrier

Publications (1)

Publication Number Publication Date
US3122828A true US3122828A (en) 1964-03-03

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Country Status (3)

Country Link
US (1) US3122828A (en, 2012)
BE (1) BE644514A (en, 2012)
DE (1) DE1452425A1 (en, 2012)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3242563A (en) * 1961-12-06 1966-03-29 Int Nickel Co Plastic deformation of alloys
US3286337A (en) * 1963-08-20 1966-11-22 Commissariat Energie Atomique Processes for shaping metals under high hydrostatic pressure
US3408710A (en) * 1963-10-25 1968-11-05 Commissariat Energie Atomique Process for the manufacture of beryllium products
US3450573A (en) * 1965-06-30 1969-06-17 Ass Elect Ind Grain refinement process for copper-bismuth alloys
US3673667A (en) * 1970-11-23 1972-07-04 Whittaker Corp Method for producing complex shapes by filled billet extrusion
US3722068A (en) * 1971-02-22 1973-03-27 Northrop Corp Method for forming titanium sheets
US3827264A (en) * 1966-07-20 1974-08-06 Arco Nuclear Co Method of producing sheets and article to practice such method
US3985514A (en) * 1966-07-20 1976-10-12 Atlantic Richfield Company Hot rolled composite billet for nuclear control rods
US20140234017A1 (en) * 2012-06-25 2014-08-21 Kurimoto, Ltd. Long light metal billet and method for manufacturing the same
WO2014149996A3 (en) * 2013-03-15 2015-04-30 Ati Properties, Inc. Methods to improve hot workability of metal alloys
US9242291B2 (en) 2011-01-17 2016-01-26 Ati Properties, Inc. Hot workability of metal alloys via surface coating
US9267184B2 (en) 2010-02-05 2016-02-23 Ati Properties, Inc. Systems and methods for processing alloy ingots
US9327342B2 (en) 2010-06-14 2016-05-03 Ati Properties, Inc. Lubrication processes for enhanced forgeability
US9533346B2 (en) 2010-02-05 2017-01-03 Ati Properties Llc Systems and methods for forming and processing alloy ingots
US9539636B2 (en) 2013-03-15 2017-01-10 Ati Properties Llc Articles, systems, and methods for forging alloys

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3044589C2 (de) * 1980-11-24 1985-08-08 Mannesmann AG, 4000 Düsseldorf Verfahren zur Herstellung nahtloser außenplattierter Rohre

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US470623A (en) * 1892-03-08 Louis augusts levez
US2064684A (en) * 1933-11-02 1936-12-15 Peter Ostendorf Method of welding
US2423810A (en) * 1942-08-04 1947-07-08 Revere Copper & Brass Inc Manufacture of bimetal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US470623A (en) * 1892-03-08 Louis augusts levez
US2064684A (en) * 1933-11-02 1936-12-15 Peter Ostendorf Method of welding
US2423810A (en) * 1942-08-04 1947-07-08 Revere Copper & Brass Inc Manufacture of bimetal

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3242563A (en) * 1961-12-06 1966-03-29 Int Nickel Co Plastic deformation of alloys
US3286337A (en) * 1963-08-20 1966-11-22 Commissariat Energie Atomique Processes for shaping metals under high hydrostatic pressure
US3408710A (en) * 1963-10-25 1968-11-05 Commissariat Energie Atomique Process for the manufacture of beryllium products
US3450573A (en) * 1965-06-30 1969-06-17 Ass Elect Ind Grain refinement process for copper-bismuth alloys
US3827264A (en) * 1966-07-20 1974-08-06 Arco Nuclear Co Method of producing sheets and article to practice such method
US3985514A (en) * 1966-07-20 1976-10-12 Atlantic Richfield Company Hot rolled composite billet for nuclear control rods
US3673667A (en) * 1970-11-23 1972-07-04 Whittaker Corp Method for producing complex shapes by filled billet extrusion
US3722068A (en) * 1971-02-22 1973-03-27 Northrop Corp Method for forming titanium sheets
US11059089B2 (en) 2010-02-05 2021-07-13 Ati Properties Llc Systems and methods for processing alloy ingots
US11059088B2 (en) 2010-02-05 2021-07-13 Ati Properties Llc Systems and methods for processing alloy ingots
US9533346B2 (en) 2010-02-05 2017-01-03 Ati Properties Llc Systems and methods for forming and processing alloy ingots
US9267184B2 (en) 2010-02-05 2016-02-23 Ati Properties, Inc. Systems and methods for processing alloy ingots
US10207312B2 (en) 2010-06-14 2019-02-19 Ati Properties Llc Lubrication processes for enhanced forgeability
US9327342B2 (en) 2010-06-14 2016-05-03 Ati Properties, Inc. Lubrication processes for enhanced forgeability
US9242291B2 (en) 2011-01-17 2016-01-26 Ati Properties, Inc. Hot workability of metal alloys via surface coating
US20140234017A1 (en) * 2012-06-25 2014-08-21 Kurimoto, Ltd. Long light metal billet and method for manufacturing the same
US9044823B2 (en) * 2012-06-25 2015-06-02 Kurimoto, Ltd. Long light metal billet and method for manufacturing the same
CN105008063A (zh) * 2013-03-15 2015-10-28 Ati资产公司 用于改进金属合金的热加工性的方法
US9539636B2 (en) 2013-03-15 2017-01-10 Ati Properties Llc Articles, systems, and methods for forging alloys
EP3167971A1 (en) 2013-03-15 2017-05-17 ATI Properties LLC Methods of improving hot workability of metal alloys
CN105008063B (zh) * 2013-03-15 2017-05-17 冶联科技地产有限责任公司 用于改进金属合金的热加工性的方法
AU2014237609B2 (en) * 2013-03-15 2017-10-05 Ati Properties Llc Methods to improve hot workability of metal alloys
AU2017235981B2 (en) * 2013-03-15 2017-11-30 Ati Properties Llc Methods to improve hot workability of metal alloys
RU2645636C2 (ru) * 2013-03-15 2018-02-26 ЭйТиАй ПРОПЕРТИЗ ЭлЭлСи Способы улучшения обрабатываемости в горячем состоянии металлических сплавов
KR20150130960A (ko) * 2013-03-15 2015-11-24 에이티아이 프로퍼티즈, 인코퍼레이티드 금속 합금의 열간 가공성을 개선시키기 위한 방법
US9027374B2 (en) 2013-03-15 2015-05-12 Ati Properties, Inc. Methods to improve hot workability of metal alloys
WO2014149996A3 (en) * 2013-03-15 2015-04-30 Ati Properties, Inc. Methods to improve hot workability of metal alloys

Also Published As

Publication number Publication date
BE644514A (en, 2012) 1964-06-15
DE1452425A1 (de) 1969-03-06

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