CA1064740A - Method for improving the sinterability of cryogenically-produced iron powder - Google Patents
Method for improving the sinterability of cryogenically-produced iron powderInfo
- Publication number
- CA1064740A CA1064740A CA253,106A CA253106A CA1064740A CA 1064740 A CA1064740 A CA 1064740A CA 253106 A CA253106 A CA 253106A CA 1064740 A CA1064740 A CA 1064740A
- Authority
- CA
- Canada
- Prior art keywords
- particles
- copper
- powder
- shape
- impacting
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 12
- 238000000034 method Methods 0.000 title abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 57
- 239000002245 particle Substances 0.000 claims abstract description 54
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 53
- 229910052802 copper Inorganic materials 0.000 claims abstract description 49
- 239000010949 copper Substances 0.000 claims abstract description 49
- 230000003116 impacting effect Effects 0.000 claims abstract description 16
- 238000007514 turning Methods 0.000 claims abstract description 15
- 230000007547 defect Effects 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 238000005245 sintering Methods 0.000 claims description 13
- 238000009792 diffusion process Methods 0.000 claims description 12
- 238000005482 strain hardening Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 9
- 239000010419 fine particle Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 239000004615 ingredient Substances 0.000 claims description 7
- 239000002923 metal particle Substances 0.000 claims description 7
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 239000011362 coarse particle Substances 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 230000001788 irregular Effects 0.000 claims description 5
- 239000011572 manganese Substances 0.000 claims description 5
- 239000013528 metallic particle Substances 0.000 claims description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims 1
- 239000006104 solid solution Substances 0.000 claims 1
- 238000000498 ball milling Methods 0.000 abstract description 17
- 239000003923 scrap metal Substances 0.000 abstract description 12
- 238000003801 milling Methods 0.000 abstract description 8
- 238000011282 treatment Methods 0.000 abstract description 3
- 230000007704 transition Effects 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000005496 tempering Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 18
- 238000000576 coating method Methods 0.000 description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 230000000704 physical effect Effects 0.000 description 6
- 230000006872 improvement Effects 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000004663 powder metallurgy Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 2
- 238000009658 destructive testing Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 101100174299 Methanococcus voltae frhA gene Proteins 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 101100120603 Rhizobium meliloti frcA gene Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 229960004756 ethanol Drugs 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
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
- B22F8/00—Manufacture of articles from scrap or waste metal particles
-
- 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
- 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
- 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
- B22F2009/045—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by other means than ball or jet milling
- B22F2009/046—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by other means than ball or jet milling by cutting
-
- 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
- B22F2009/049—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by pulverising at particular temperature
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- 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
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
-
- 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
- Y10S241/00—Solid material comminution or disintegration
- Y10S241/37—Cryogenic cooling
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58456375A | 1975-06-06 | 1975-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1064740A true CA1064740A (en) | 1979-10-23 |
Family
ID=24337853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA253,106A Expired CA1064740A (en) | 1975-06-06 | 1976-05-21 | Method for improving the sinterability of cryogenically-produced iron powder |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4129443A (cg-RX-API-DMAC10.html) |
| JP (1) | JPS5242406A (cg-RX-API-DMAC10.html) |
| CA (1) | CA1064740A (cg-RX-API-DMAC10.html) |
| DE (1) | DE2625214C2 (cg-RX-API-DMAC10.html) |
| GB (1) | GB1498359A (cg-RX-API-DMAC10.html) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2412615A1 (fr) * | 1977-12-22 | 1979-07-20 | Renault | Procede de traitement de dechets metalliques et dispositif de mise en oeuvre |
| US4323395A (en) * | 1980-05-08 | 1982-04-06 | Li Chou H | Powder metallurgy process and product |
| US4592790A (en) * | 1981-02-20 | 1986-06-03 | Globus Alfred R | Method of making particulate uranium for shaped charge liners |
| US4619699A (en) * | 1983-08-17 | 1986-10-28 | Exxon Research And Engineering Co. | Composite dispersion strengthened composite metal powders |
| US4645131A (en) * | 1984-12-24 | 1987-02-24 | Hailey Robert W | Powder milling method to produce fine powder sizes |
| US4614544A (en) * | 1985-01-23 | 1986-09-30 | E. I. Du Pont De Nemours And Company | High strength powder metal parts |
| EP0680393B1 (en) * | 1991-02-01 | 1998-07-22 | KAUFMAN, Sydney M. | Method of recycling scrap metal |
| US5152847A (en) * | 1991-02-01 | 1992-10-06 | Phoenix Metals Corp. | Method of decarburization annealing ferrous metal powders without sintering |
| US5312648A (en) * | 1991-09-05 | 1994-05-17 | Technalum Research, Inc. | Method for coating particles using counter-rotating disks |
| US5165609A (en) * | 1991-09-05 | 1992-11-24 | Technalum Research, Inc. | Method of producing thermally reactive powders using consumable disintegrator disks |
| WO1994008059A1 (en) * | 1991-09-19 | 1994-04-14 | Megy Joseph A | Refractory metal sway composition and method of making same |
| US5597401A (en) * | 1992-10-05 | 1997-01-28 | Megy; Joseph A. | Refractory metal SWARF composition and method of making same |
| CN1126638C (zh) * | 1997-12-19 | 2003-11-05 | 克里斯铝轧制品有限公司 | 从金属废品上除去金属涂层的方法 |
| US6179894B1 (en) * | 1999-11-29 | 2001-01-30 | Delphi Technologies, Inc. | Method of improving compressibility of a powder and articles formed thereby |
| WO2002061151A2 (en) * | 2000-10-28 | 2002-08-08 | Purdue Research Foundation | Method of forming nano-crystalline particles and produrct formed thereof |
| JP3908491B2 (ja) * | 2001-08-03 | 2007-04-25 | 株式会社日立製作所 | 電子燃料噴射弁 |
| WO2004026508A2 (en) * | 2002-09-23 | 2004-04-01 | Savin Roland R | Process for dry milling zinc powder to produce zinc flake |
| US6902699B2 (en) * | 2002-10-02 | 2005-06-07 | The Boeing Company | Method for preparing cryomilled aluminum alloys and components extruded and forged therefrom |
| US7435306B2 (en) * | 2003-01-22 | 2008-10-14 | The Boeing Company | Method for preparing rivets from cryomilled aluminum alloys and rivets produced thereby |
| FR2859930B1 (fr) * | 2003-09-18 | 2006-12-08 | Commissariat Energie Atomique | Procede d'obtention d'un materiau metallique corroye, et materiau correspondant |
| US7922841B2 (en) * | 2005-03-03 | 2011-04-12 | The Boeing Company | Method for preparing high-temperature nanophase aluminum-alloy sheets and aluminum-alloy sheets prepared thereby |
| WO2008131273A1 (en) * | 2007-04-18 | 2008-10-30 | University Of Central Florida Research Foundation, Inc. | Thermite compositions, articles and low temperature impact milling processes for forming the same |
| CN101898247B (zh) * | 2010-07-19 | 2012-06-06 | 北京科技大学 | 一种铁基磨削废料的无污染再利用方法 |
| CN103128275B (zh) * | 2013-03-15 | 2016-05-25 | 金川集团股份有限公司 | 一种超细铜粉的防氧化方法 |
| CN106141168A (zh) * | 2016-08-23 | 2016-11-23 | 金川集团股份有限公司 | 一种铜粉的湿法防氧化方法 |
| DE102020119489A1 (de) * | 2020-02-07 | 2021-08-12 | Retsch Gmbh | Gerätemodul für ein Laborgerät und Verfahren zur Temperierung eines Laborgerätes |
| US11834728B2 (en) | 2021-01-26 | 2023-12-05 | Nucor Corporation | Method and system of reducing non-ferrous metal content of scrap steel |
| CN112974810B (zh) * | 2021-05-07 | 2021-08-06 | 陕西斯瑞新材料股份有限公司 | 一种高性能铜铬合金触头的制备方法 |
| CN113481405B (zh) * | 2021-06-29 | 2022-05-20 | 宁波金田铜业(集团)股份有限公司 | 一种铜铁合金的制备方法 |
| CN117505859B (zh) * | 2024-01-05 | 2024-03-08 | 南通英诺威体育用品科技有限公司 | 一种利用废旧金属材料制备健身器材铁块的生产工艺 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA843378A (en) * | 1970-06-02 | G. Simon John | Mechanical plating | |
| US2378588A (en) * | 1942-03-14 | 1945-06-19 | Machlett Lab Inc | Method of making bearings |
| US3013892A (en) * | 1959-12-09 | 1961-12-19 | Minnesota Mining & Mfg | Impact media for mechanical plating and method of using same |
| US3251711A (en) * | 1962-06-20 | 1966-05-17 | Peen Plate Inc | Methods of mechanically plating metal objects with copper and alloys thereof |
| US3223523A (en) * | 1963-07-05 | 1965-12-14 | C K Williams & Co Inc | Methods for improving pressed properties and characteristics of sintered powder metal compacts |
| US3363846A (en) * | 1965-12-16 | 1968-01-16 | Nuclear Materials & Equipment | Method of and apparatus for producing small particles |
| FR2013637A1 (cg-RX-API-DMAC10.html) * | 1968-07-25 | 1970-04-03 | George Et Cie Sprl | |
| US3771729A (en) * | 1971-06-17 | 1973-11-13 | Air Prod & Chem | Cryogenic comminution system |
| US3838982A (en) * | 1973-02-21 | 1974-10-01 | Trw Inc | Impervious sintered iron-copper metal object |
| US4024295A (en) * | 1975-04-07 | 1977-05-17 | Minnesota Mining And Manufacturing Company | Coating process utilizing propelled particles |
| US4015780A (en) * | 1975-05-05 | 1977-04-05 | Boc Limited | Powder forming |
| US4011077A (en) * | 1975-06-06 | 1977-03-08 | Ford Motor Company | Copper coated, iron-carbon eutectic alloy powders |
| US4018633A (en) * | 1975-11-19 | 1977-04-19 | Ford Motor Company | Cryogenic metal chip reclamation |
-
1976
- 1976-05-18 GB GB2056076A patent/GB1498359A/en not_active Expired
- 1976-05-21 CA CA253,106A patent/CA1064740A/en not_active Expired
- 1976-06-04 JP JP6469776A patent/JPS5242406A/ja active Granted
- 1976-06-04 DE DE2625214A patent/DE2625214C2/de not_active Expired
- 1976-10-26 US US05/735,468 patent/US4129443A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2625214A1 (de) | 1976-12-23 |
| DE2625214C2 (de) | 1984-01-19 |
| GB1498359A (en) | 1978-01-18 |
| JPS5242406A (en) | 1977-04-02 |
| JPS5543482B2 (cg-RX-API-DMAC10.html) | 1980-11-06 |
| US4129443A (en) | 1978-12-12 |
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