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GB1508941A - Method for converting scrap metal into sinterable powder - Google Patents

Method for converting scrap metal into sinterable powder

Info

Publication number
GB1508941A
GB1508941A GB24014/76A GB2401476A GB1508941A GB 1508941 A GB1508941 A GB 1508941A GB 24014/76 A GB24014/76 A GB 24014/76A GB 2401476 A GB2401476 A GB 2401476A GB 1508941 A GB1508941 A GB 1508941A
Authority
GB
United Kingdom
Prior art keywords
particles
metal
powder
temperature
mill
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
GB24014/76A
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.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor Co
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 Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB1508941A publication Critical patent/GB1508941A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/17—Metallic particles coated with metal
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

Landscapes

  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

1508941 Sintering powder produced from scrap metal FORD MOTOR CO Ltd 10 June 1976 [3 Dec 1975] 24014/76 Heading C7D [Also in Division B3] A method of making a metal powder which can be compacted and sintered from scrap metal, comprises taking scrap metal particles 10 having a surface to volume ratio of at least 60:1, and reducing its temperature to below the ductilebrittle transition temperature and simultaneously shattering particles 10 and coating them with a protective metal by impact, the protective metal having a melting temperature below but substantially about the liquidus of particles 10 and being completely soluble in the metal of particles 10, the protective metal being readily abraded. The impact is with protective metal particles 17, of copper, in a ball mill 12, and the cryogenic temperature is obtained by liquid nitrogen 15, poured in through pipe 18. As ball-mill 12 is rotated, particles 10 are at the cryogenic temperature whilst in the liquid nitrogen 15 and are shattered as they encounter copper balls 17, and as the mill 12 rotates, for part of the time the particles 10 and 17 are out of the liquid and above the ductilebrittle transition temperature but below ambient with the result that the powder particles 10 are work-hardened. The process may be a continuous one, using a ball mill as in Fig. 3 (not shown) which is tilted at 1 or 2 degrees from the horizontal so that as the mill rotates the powder works its way down to one end where it is continuously extracted. After the powder has been formed it may be compacted into a shape and sintered. Particles 10 may be ferrous, in which case the sintering temperature is 2000-2100‹F.
GB24014/76A 1975-12-03 1976-06-10 Method for converting scrap metal into sinterable powder Expired GB1508941A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63735075A 1975-12-03 1975-12-03

Publications (1)

Publication Number Publication Date
GB1508941A true GB1508941A (en) 1978-04-26

Family

ID=24555552

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24014/76A Expired GB1508941A (en) 1975-12-03 1976-06-10 Method for converting scrap metal into sinterable powder

Country Status (3)

Country Link
JP (2) JPS5268846A (en)
DE (1) DE2625233C2 (en)
GB (1) GB1508941A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5688303A (en) * 1990-08-30 1997-11-18 Aluminum Company Of America Mechanical alloying process
WO2019073172A1 (en) 2017-10-12 2019-04-18 Commissariat A L'energie Atomique Et Aux Energies Alternatives Device and method for cryogenic grinding with grinding media in the form of solidified cryogenic gas
WO2019073170A1 (en) 2017-10-12 2019-04-18 Commissariat A L'energie Atomique Et Aux Energies Alternatives DEVICE AND METHOD FOR MANUFACTURING CRYOGENIC CERAMIC PIECES
WO2019073171A1 (en) 2017-10-12 2019-04-18 Commissariat A L'energie Atomique Et Aux Energies Alternatives Device and method for cryogenic grinding with confluent jets
CN113546745A (en) * 2021-06-22 2021-10-26 国家能源集团宁夏煤业有限责任公司 Cryogenic crushing device and cryogenic crushing method for preparing polymer powder
FR3117485A1 (en) * 2020-12-10 2022-06-17 Commissariat A L'energie Atomique Et Aux Energies Alternatives Method of grinding powders, method of coating a material, metal particles, coated material and uses thereof
EP4480604A1 (en) * 2023-06-15 2024-12-25 Technische Universität Bergakademie Freiberg Körperschaft des öffentlichen Rechts Method for producing metal powder

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5676251A (en) * 1979-11-22 1981-06-23 Toho Gas Kk Pulverizing method and its device
JPS63100107A (en) * 1986-10-14 1988-05-02 Hitachi Metals Ltd Production of amorphous alloy powder
EP0311699B1 (en) * 1987-10-12 1992-03-25 Carl Schenck Ag Transport device for turning round piece-goods on the same level
JPH0729067B2 (en) * 1988-08-26 1995-04-05 石川島播磨重工業株式会社 Method for producing high-purity fine powder of active metal
JPH06502891A (en) * 1990-08-30 1994-03-31 アルミナム　カンパニー　オブ　アメリカ How to mechanically alloy
JP2534028B2 (en) * 1994-07-05 1996-09-11 三菱化学株式会社 Alloy crushing method
WO2011059074A1 (en) * 2009-11-13 2011-05-19 森六ケミカルズ株式会社 Fine powder manufacturing method and fine powder manufactured using same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3363846A (en) * 1965-12-16 1968-01-16 Nuclear Materials & Equipment Method of and apparatus for producing small particles

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5688303A (en) * 1990-08-30 1997-11-18 Aluminum Company Of America Mechanical alloying process
WO2019073172A1 (en) 2017-10-12 2019-04-18 Commissariat A L'energie Atomique Et Aux Energies Alternatives Device and method for cryogenic grinding with grinding media in the form of solidified cryogenic gas
WO2019073170A1 (en) 2017-10-12 2019-04-18 Commissariat A L'energie Atomique Et Aux Energies Alternatives DEVICE AND METHOD FOR MANUFACTURING CRYOGENIC CERAMIC PIECES
WO2019073171A1 (en) 2017-10-12 2019-04-18 Commissariat A L'energie Atomique Et Aux Energies Alternatives Device and method for cryogenic grinding with confluent jets
FR3072378A1 (en) * 2017-10-12 2019-04-19 Commissariat A L'energie Atomique Et Aux Energies Alternatives DEVICE AND METHOD FOR MANUFACTURING CRYOGENIC CERAMIC PIECES
DE112018004536T5 (en) 2017-10-12 2020-05-28 Commissariat à l'énergie atomique et aux énergies alternatives Device and method for cryogenic grinding with grinding media in the form of solidified cryogenic gas
DE112018004532T5 (en) 2017-10-12 2020-05-28 Commissariat à l'Energie Atomique et aux Energies Alternatives Device and method for cryogenic grinding with confluent jet jets
DE112018004502T5 (en) 2017-10-12 2020-06-10 Commissariat à l'énergie atomique et aux énergies alternatives Device and method for the cryogenic manufacture of ceramic parts
FR3117485A1 (en) * 2020-12-10 2022-06-17 Commissariat A L'energie Atomique Et Aux Energies Alternatives Method of grinding powders, method of coating a material, metal particles, coated material and uses thereof
CN113546745A (en) * 2021-06-22 2021-10-26 国家能源集团宁夏煤业有限责任公司 Cryogenic crushing device and cryogenic crushing method for preparing polymer powder
EP4480604A1 (en) * 2023-06-15 2024-12-25 Technische Universität Bergakademie Freiberg Körperschaft des öffentlichen Rechts Method for producing metal powder

Also Published As

Publication number Publication date
DE2625233C2 (en) 1984-01-12
JPS56202A (en) 1981-01-06
JPS5627562B2 (en) 1981-06-25
JPS5268846A (en) 1977-06-08
DE2625233A1 (en) 1977-06-08
JPS561361B2 (en) 1981-01-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee