SE503422C2 - Sätt vid framställning av en sammansatt produkt av rostfria stål - Google Patents
Sätt vid framställning av en sammansatt produkt av rostfria stålInfo
- Publication number
- SE503422C2 SE503422C2 SE9400127A SE9400127A SE503422C2 SE 503422 C2 SE503422 C2 SE 503422C2 SE 9400127 A SE9400127 A SE 9400127A SE 9400127 A SE9400127 A SE 9400127A SE 503422 C2 SE503422 C2 SE 503422C2
- Authority
- SE
- Sweden
- Prior art keywords
- pct
- stainless steel
- composite
- product
- sec
- Prior art date
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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
-
- 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
- B22F1/09—Mixtures of metallic powders
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/1208—Containers or coating used therefor
- B22F3/1216—Container composition
-
- 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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Forging (AREA)
- Laminated Bodies (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9400127A SE503422C2 (sv) | 1994-01-19 | 1994-01-19 | Sätt vid framställning av en sammansatt produkt av rostfria stål |
DE69521292T DE69521292T2 (de) | 1994-01-19 | 1995-01-12 | Verfahren zur herstellung einer schichtwerkstoffen aus metall |
EP95907169A EP0740589B1 (en) | 1994-01-19 | 1995-01-12 | Method relating to the manufacturing of a composite metal product |
UA96072882A UA42751C2 (uk) | 1994-01-19 | 1995-01-12 | Спосіб виробництва композитного металічного виробу |
AU15481/95A AU1548195A (en) | 1994-01-19 | 1995-01-12 | Method relating to the manufacturing of a composite metal product |
RU96115917A RU2127195C1 (ru) | 1994-01-19 | 1995-01-12 | Способ изготовления композитного металлического изделия |
AT95907169T ATE202022T1 (de) | 1994-01-19 | 1995-01-12 | Verfahren zur herstellung einer schichtwerkstoffen aus metall |
US08/676,261 US5815790A (en) | 1994-01-19 | 1995-01-12 | Method relating to the manufacturing of a composite metal product |
JP51950295A JP3647453B2 (ja) | 1994-01-19 | 1995-01-12 | 複合金属製品の製造に関する方法 |
CN95191275A CN1068266C (zh) | 1994-01-19 | 1995-01-12 | 一种复合金属制品的制造方法 |
PCT/SE1995/000020 WO1995019861A1 (en) | 1994-01-19 | 1995-01-12 | Method relating to the manufacturing of a composite metal product |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9400127A SE503422C2 (sv) | 1994-01-19 | 1994-01-19 | Sätt vid framställning av en sammansatt produkt av rostfria stål |
Publications (4)
Publication Number | Publication Date |
---|---|
SE9400127D0 SE9400127D0 (sv) | 1994-01-19 |
SE503422C3 SE503422C3 (sv) | 1995-07-20 |
SE9400127L SE9400127L (sv) | 1995-07-20 |
SE503422C2 true SE503422C2 (sv) | 1996-06-10 |
Family
ID=20392599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9400127A SE503422C2 (sv) | 1994-01-19 | 1994-01-19 | Sätt vid framställning av en sammansatt produkt av rostfria stål |
Country Status (11)
Country | Link |
---|---|
US (1) | US5815790A (sv) |
EP (1) | EP0740589B1 (sv) |
JP (1) | JP3647453B2 (sv) |
CN (1) | CN1068266C (sv) |
AT (1) | ATE202022T1 (sv) |
AU (1) | AU1548195A (sv) |
DE (1) | DE69521292T2 (sv) |
RU (1) | RU2127195C1 (sv) |
SE (1) | SE503422C2 (sv) |
UA (1) | UA42751C2 (sv) |
WO (1) | WO1995019861A1 (sv) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19741019C2 (de) * | 1997-09-18 | 2000-09-28 | Daimler Chrysler Ag | Strukturwerkstoff und Verfahren zu dessen Herstellung |
US6346132B1 (en) | 1997-09-18 | 2002-02-12 | Daimlerchrysler Ag | High-strength, high-damping metal material and method of making the same |
US6110418A (en) * | 1998-11-09 | 2000-08-29 | Jablonski; David A. | Method of manufacturing wear resistant cutting knives and granulator knife produced thereby |
SE516130C2 (sv) * | 1999-03-15 | 2001-11-19 | Damasteel Ab | Ämne för metallprodukt, förfarande för framställning av metallprodukt samt metallprodukt |
US6207294B1 (en) * | 1999-04-30 | 2001-03-27 | Philip A. Rutter | Self-sharpening, laminated cutting tool and method for making the tool |
US6599276B1 (en) * | 2000-02-09 | 2003-07-29 | Process Detectable Needles, Inc. | Detectable stainless steel needles for meat packing |
US6617953B2 (en) | 2001-03-26 | 2003-09-09 | Wilson Greatbatch Ltd. | Link fuse |
US6618273B2 (en) | 2001-03-27 | 2003-09-09 | Wilson Greatbatch Ltd. | Trace fuse |
US6878074B2 (en) * | 2001-12-26 | 2005-04-12 | Callaway Golf Company | Golf club head composed of a damascene patterned metal |
US6857558B2 (en) * | 2002-02-27 | 2005-02-22 | Ferry, Iii Robert Thomas | Metal lamination method and structure |
RU2313422C2 (ru) * | 2002-10-07 | 2007-12-27 | Ман Б Энд В Диесель А/С | Способ изготовления форсунки для топливного клапана в дизельном двигателе и форсунка |
US6880647B2 (en) * | 2003-05-12 | 2005-04-19 | Schlumberger Technology Corporation | Chassis for downhole drilling tool |
US7028373B2 (en) * | 2003-05-16 | 2006-04-18 | Motorola, Inc. | Spring biased hinges and methods therefor |
WO2006125221A1 (en) * | 2005-05-18 | 2006-11-23 | Midgett Steven G | Composite metal tube and ring and process for producing |
JP4644059B2 (ja) * | 2005-07-08 | 2011-03-02 | 東洋刃物株式会社 | 塗布ヘッド |
DE102005059614A1 (de) * | 2005-12-12 | 2007-06-14 | Nano-X Gmbh | Beschichtungsmaterial zum Schutz von Metallen, insbesondere Stahl, vor Korrosion und/oder Verzunderung, Verfahren zum Beschichten von Metallen und Metallelement |
DE102006058066B3 (de) * | 2006-12-07 | 2008-08-14 | Deutsche Edelstahlwerke Gmbh | Pulvermetallurgisch hergestelltes Stahlblech |
DE102007022453B4 (de) * | 2007-05-10 | 2020-02-06 | Thyssenkrupp Steel Europe Ag | Mehrschichtiges Verbundteil und aus diesem hergestelltes Bauteil |
DE102007038215A1 (de) * | 2007-08-13 | 2009-02-19 | Nano-X Gmbh | Verfahren zur Herstellung einer aktiven Korrosionsschutzbeschichtung auf Bauteilen aus Stahl |
RU2455115C1 (ru) * | 2011-02-17 | 2012-07-10 | Открытое акционерное общество "Всероссийский институт легких сплавов" (ОАО "ВИЛС") | Способ получения переменной структуры по сечению порошковой заготовки |
JP5108160B2 (ja) * | 2011-02-28 | 2012-12-26 | 有限会社龍泉刃物 | 多層微細構造刃先を付けた打ち刃物およびその製造方法 |
FR2984782B1 (fr) * | 2011-12-23 | 2014-09-26 | Commissariat Energie Atomique | Procede d'assemblage par soudage diffusion d'une piece en acier a forte teneur en carbone avec une piece en acier ou en alliage de nickel a faible teneur en carbone, et assemblage ainsi obtenu. |
RU2477670C1 (ru) * | 2011-12-27 | 2013-03-20 | Открытое акционерное общество "Всероссийский институт легких сплавов" (ОАО "ВИЛС") | Способ изготовления изделий из гранулируемых жаропрочных никелевых сплавов |
DE102012201880A1 (de) * | 2012-02-09 | 2013-08-14 | Robert Bosch Gmbh | Einstückiges Bauteil sowie Verfahren zu dessen Herstellung |
RU2504455C1 (ru) * | 2012-11-01 | 2014-01-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный авиационный технический университет" | Способ получения заготовок из порошковых металлических материалов |
CN103264129A (zh) * | 2013-06-03 | 2013-08-28 | 罗时根 | 改进大马士革千层钢板纹路的加工工艺 |
MX2015009787A (es) * | 2014-07-30 | 2016-03-31 | Sundram Fasteners Ltd | Artículo que tiene una pluralidad de regiones funcionalmente graduadas y método de fabricación del mismo. |
CN104889398A (zh) * | 2015-05-15 | 2015-09-09 | 安泰科技股份有限公司 | 粉末冶金工艺制备耐磨耐蚀合金棒材的方法 |
CN104889400B (zh) * | 2015-05-15 | 2017-10-10 | 安泰科技股份有限公司 | 粉末冶金耐磨耐蚀合金管材 |
CN104889399B (zh) * | 2015-05-15 | 2017-10-10 | 安泰科技股份有限公司 | 粉末冶金工艺制备耐磨耐蚀合金管件的方法 |
CN104874802B (zh) * | 2015-05-15 | 2017-10-10 | 安泰科技股份有限公司 | 粉末冶金耐磨损耐腐蚀合金棒材 |
CN106048177A (zh) * | 2016-07-01 | 2016-10-26 | 北京科技大学 | 一种大马士革钢的制备方法 |
SE540060C2 (sv) | 2016-10-27 | 2018-03-13 | Damasteel Ab | Method of making a patterned composite metal plate |
DE102016124213A1 (de) * | 2016-12-13 | 2018-06-14 | Saar-Pulvermetall GmbH | Verbundkörper und Verfahren zu seiner Herstellung |
SE541912C2 (en) * | 2018-05-28 | 2020-01-07 | Damasteel Ab | Blank for a damascus patterned article |
KR102157162B1 (ko) * | 2018-05-31 | 2020-09-17 | 공주대학교 산학협력단 | 다층소재를 이용한 칼의 제조방법 및 이에 의해 제조된 주방용 칼 |
CN108436401B (zh) * | 2018-06-05 | 2020-10-02 | 宝鸡市欧远新金属科技有限公司 | 大马士革钛或锆的制备方法 |
CN109261958B (zh) * | 2018-11-15 | 2020-07-17 | 西北有色金属研究院 | 表面包覆钽涂层的医用多孔钛或钛合金材料的制备方法 |
CN111545762A (zh) * | 2020-04-28 | 2020-08-18 | 无锡聚锋机电科技有限公司 | 复合材料的制备方法 |
US11471943B2 (en) | 2020-12-16 | 2022-10-18 | Mtc Powder Solutions Ab | Hot isostatic pressing (HIP) fabrication of multi-metallic components for pressure-controlling equipment |
US11919086B2 (en) | 2020-12-16 | 2024-03-05 | Schlumberger Technology Corporation | Hot isostatic pressing (HIP) fabrication of multi-metallic components for pressure-controlling equipment |
CN114054759B (zh) * | 2021-11-17 | 2023-09-01 | 成都先进金属材料产业技术研究院股份有限公司 | 高端厨刀用复合板材的制备方法 |
CN114833340B (zh) * | 2022-05-10 | 2024-02-06 | 安泰科技股份有限公司 | 一种大马士革钢的制备方法 |
CN114959411A (zh) * | 2022-05-10 | 2022-08-30 | 安泰科技股份有限公司 | 一种粉末冶金制备大马士革钢的制备方法 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3280614A (en) * | 1963-08-09 | 1966-10-25 | Republic Steel Corp | Method of texturing metal sheet |
US3753704A (en) * | 1967-04-14 | 1973-08-21 | Int Nickel Co | Production of clad metal articles |
DE1752757B2 (de) * | 1968-07-09 | 1974-08-08 | Mannesmann Ag, 4000 Duesseldorf | Verfahren zur Herstellung von Profilen, z.B. Rohren und Stäben voller Dichte |
FR2145123A5 (sv) * | 1971-07-08 | 1973-02-16 | Morabito Pascal | |
DE2419014C3 (de) * | 1974-04-19 | 1985-08-01 | Nyby Bruks AB, Nybybruk | Verfahren zum Herstellen von Rohren aus rostfreiem Stahl und Anwendung des Verfahrens auf das Herstellen von Verbundrohren |
US4065302A (en) * | 1975-12-29 | 1977-12-27 | The International Nickel Company, Inc. | Powdered metal consolidation method |
US4259413A (en) * | 1977-05-16 | 1981-03-31 | Carpenter Technology Corporation | Composite stainless steel boron-containing article |
US4261745A (en) * | 1979-02-09 | 1981-04-14 | Toyo Kohan Co., Ltd. | Method for preparing a composite metal sintered article |
US4581300A (en) * | 1980-06-23 | 1986-04-08 | The Garrett Corporation | Dual alloy turbine wheels |
US4399611A (en) * | 1980-11-10 | 1983-08-23 | Maringer Thomas E | Article of decorative metal manufacture |
NO150668C (no) * | 1981-08-07 | 1984-11-28 | Jan Mowill | Fremgangsmaate til fremstilling av et monolittisk maskindelemne med partier av forskjellig legeringssammensetning ved pulvermetallurgi |
SE8204133L (sv) * | 1982-07-05 | 1984-01-06 | Nyby Uddeholm Ab | Pressning med sneva toleranser |
FR2548562B1 (fr) * | 1983-07-08 | 1989-02-24 | Commissariat Energie Atomique | Lopin composite pour transformation a chaud |
JPS60190552A (ja) * | 1984-03-12 | 1985-09-28 | Sumitomo Metal Ind Ltd | 焼結ステンレス鋼およびその製造方法 |
US4602952A (en) * | 1985-04-23 | 1986-07-29 | Cameron Iron Works, Inc. | Process for making a composite powder metallurgical billet |
CH673593A5 (sv) * | 1986-10-13 | 1990-03-30 | Von Roll Ag | |
DE3881923T2 (de) * | 1987-03-25 | 1994-01-27 | Nippon Steel Corp | Verfahren zur Herstellung von beschichteten Metallrohre. |
US4881430A (en) * | 1988-09-06 | 1989-11-21 | Hubbard Arthur J | Method of making heterogeneous blade-like metallic cutter member |
JPH0649888B2 (ja) * | 1989-03-24 | 1994-06-29 | 新日本製鐵株式会社 | 表面被覆金属の製造方法 |
DE4124393A1 (de) * | 1991-07-23 | 1993-01-28 | Wmf Wuerttemberg Metallwaren | Besteckteile aus metall |
US5350637A (en) * | 1992-10-30 | 1994-09-27 | Corning Incorporated | Microlaminated composites and method |
-
1994
- 1994-01-19 SE SE9400127A patent/SE503422C2/sv not_active IP Right Cessation
-
1995
- 1995-01-12 JP JP51950295A patent/JP3647453B2/ja not_active Expired - Lifetime
- 1995-01-12 US US08/676,261 patent/US5815790A/en not_active Expired - Lifetime
- 1995-01-12 EP EP95907169A patent/EP0740589B1/en not_active Expired - Lifetime
- 1995-01-12 AU AU15481/95A patent/AU1548195A/en not_active Abandoned
- 1995-01-12 AT AT95907169T patent/ATE202022T1/de active
- 1995-01-12 DE DE69521292T patent/DE69521292T2/de not_active Expired - Lifetime
- 1995-01-12 UA UA96072882A patent/UA42751C2/uk unknown
- 1995-01-12 RU RU96115917A patent/RU2127195C1/ru active
- 1995-01-12 CN CN95191275A patent/CN1068266C/zh not_active Expired - Lifetime
- 1995-01-12 WO PCT/SE1995/000020 patent/WO1995019861A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP0740589A1 (en) | 1996-11-06 |
UA42751C2 (uk) | 2001-11-15 |
JPH09507696A (ja) | 1997-08-05 |
DE69521292D1 (de) | 2001-07-19 |
US5815790A (en) | 1998-09-29 |
RU2127195C1 (ru) | 1999-03-10 |
CN1140426A (zh) | 1997-01-15 |
AU1548195A (en) | 1995-08-08 |
ATE202022T1 (de) | 2001-06-15 |
CN1068266C (zh) | 2001-07-11 |
SE9400127D0 (sv) | 1994-01-19 |
DE69521292T2 (de) | 2001-10-31 |
WO1995019861A1 (en) | 1995-07-27 |
JP3647453B2 (ja) | 2005-05-11 |
EP0740589B1 (en) | 2001-06-13 |
SE9400127L (sv) | 1995-07-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |