US20160222496A1 - Metal powder for powder metallurgy, compound, granulated powder, and sintered body - Google Patents

Metal powder for powder metallurgy, compound, granulated powder, and sintered body Download PDF

Info

Publication number
US20160222496A1
US20160222496A1 US15/002,769 US201615002769A US2016222496A1 US 20160222496 A1 US20160222496 A1 US 20160222496A1 US 201615002769 A US201615002769 A US 201615002769A US 2016222496 A1 US2016222496 A1 US 2016222496A1
Authority
US
United States
Prior art keywords
powder
sintered body
mass
less
metal powder
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.)
Abandoned
Application number
US15/002,769
Other languages
English (en)
Inventor
Hidefumi Nakamura
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Assigned to SEIKO EPSON CORPORATION reassignment SEIKO EPSON CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NAKAMURA, HIDEFUMI
Publication of US20160222496A1 publication Critical patent/US20160222496A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • B22F1/0059—
    • 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
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • 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
    • B22F3/24—After-treatment of workpieces or articles
    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • 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
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/248—Thermal after-treatment
    • 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
    • B22F2301/00—Metallic composition of the powder or its coating
    • B22F2301/35—Iron
    • 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
    • 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
    • B22F3/14—Both compacting and sintering simultaneously
    • B22F3/15—Hot isostatic pressing

Definitions

  • the present inventors have made intensive studies to find conditions for obtaining a sintered body having a high density without performing an additional treatment. As a result, they found that the density of a sintered body can be increased by optimizing the chemical composition and the crystal structure of each particle contained in a metal powder, and thus completed the invention.
  • the content of C in the particle 1 is set to 0.1% by mass or more and 2% by mass or less, but is set to preferably 0.35% by mass or more and 1.15% by mass or less, more preferably 0.4% by mass or more and 1.1% by mass or less. If the content of C is less than the above lower limit, crystal grains are liable to grow depending on the overall composition so that the mechanical properties of the sintered body are insufficient. On the other hand, if the content of C exceeds the above upper limit, the amount of C is too large depending on the overall composition so that the sinterability is deteriorated instead.
  • E1/E2 is preferably 0.58 or more and 5.76 or less, more preferably 0.96 or more and 3.84 or less.
  • E1/E2 is preferably 0.16 or more and 1.58 or less, more preferably 0.26 or more and 1.05 or less.
  • the presence of the high Si concentration region 4 can also be determined by, for example, a mapping analysis by energy dispersive X-ray spectrometry (EDX).
  • EDX energy dispersive X-ray spectrometry
  • the content E1 of the first element and the content E2 of the second element are as described above, respectively, however, the sum of the contents of these elements is preferably 0.05% by mass or more and 0.6% by mass or less, more preferably 0.10% by mass or more and 0.48% by mass or less, further more preferably 0.12% by mass or more and 0.24% by mass or less.
  • (E1+E2)/C is preferably 1 or more and 16 or less, more preferably 2 or more and 13 or less, further more preferably 3 or more and 10 or less.
  • JIS G 1221 Iron and steel—Methods for determination of vanadium content
  • the “major axis” is the maximum length in the projected image of the particle
  • the “minor axis” is the maximum length in the direction perpendicular to the major axis.
  • the average of the aspect ratio can be obtained as the average of the measured aspect ratios of 100 or more particles.
  • the molding conditions in the case of an extrusion molding method are preferably such that the material temperature is about 80° C. or higher and 210° C. or lower, and the extrusion pressure is about 50 MPa or more and 500 MPa or less (0.5 t/cm 2 or more and 5 t/cm 2 or less), which vary depending on the respective conditions.
  • the degreased body may be subjected to a machining process such as grinding, polishing, or cutting.
  • the degreased body has a relatively low hardness and relatively high plasticity, and therefore, the machining process can be easily performed while preventing the degreased body from losing its shape. According to such a machining process, a sintered body having high dimensional accuracy can be easily obtained in the end.
  • A2-A1 is preferably 0.1% or more and 3% or less, more preferably 0.2% or more and 2% or less.
  • the sintered body showing the value of A2-A1 within the above range not only has necessary and sufficient mechanical strength, but also can easily flatten the surface. That is, by polishing the surface of such a sintered body, a surface having high specularity can be obtained.
  • Cooling method water cooling
  • this granulated powder was subjected to powder compacting under the following molding conditions.
  • a press molding machine was used.
  • the shape of the molded body to be produced was determined to be a cube with a side length of 20 mm.
  • the circle equivalent diameter of the Fe-based alloy crystal was 1% or more and 100% or less the circle equivalent diameter of the particle. Specifically, the lowest ratio of the circle equivalent diameter of the Fe-based alloy crystal to the circle equivalent diameter of the particle was 2%, and the highest ratio thereof was 84%.
  • the tensile strength of the sintered body is slightly low (1200 MPa or more and less than 1400 MPa).
  • the fatigue strength of the sintered body is 555 MPa or more and less than 575 MPa.
  • the Vickers hardness was measured in accordance with the Vickers hardness test method specified in JIS Z 2244 (2009).
  • the average number of the Fe-based alloy crystals was 6 or more.
  • the average number of the Fe-based alloy crystals was 1 or more and 5 or less.
  • the circle equivalent diameter of the Fe-based alloy crystal was 1% or more and 100% or less the circle equivalent diameter of the particle.
  • the specularity of the surface is high (the specular gloss is 150 or more and less than 200).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
US15/002,769 2015-01-29 2016-01-21 Metal powder for powder metallurgy, compound, granulated powder, and sintered body Abandoned US20160222496A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015016091A JP6319121B2 (ja) 2015-01-29 2015-01-29 粉末冶金用金属粉末、コンパウンド、造粒粉末および焼結体の製造方法
JP2015-016091 2015-01-29

Publications (1)

Publication Number Publication Date
US20160222496A1 true US20160222496A1 (en) 2016-08-04

Family

ID=55273132

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/002,769 Abandoned US20160222496A1 (en) 2015-01-29 2016-01-21 Metal powder for powder metallurgy, compound, granulated powder, and sintered body

Country Status (4)

Country Link
US (1) US20160222496A1 (enrdf_load_stackoverflow)
EP (1) EP3050985B1 (enrdf_load_stackoverflow)
JP (1) JP6319121B2 (enrdf_load_stackoverflow)
CN (1) CN105834413B (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0729776Y2 (ja) 1988-07-19 1995-07-12 三菱農機株式会社 ロータリにおけるセンサー取付構造
CN106777807B (zh) * 2017-01-13 2020-09-25 北京航空航天大学 一种粉末冶金随机粒度分布3d有限元建模与仿真方法
SE541309C2 (en) * 2017-10-09 2019-06-25 Uddeholms Ab Steel suitable for hot working tools
EP4190933B1 (en) * 2017-10-31 2025-07-16 Proterial, Ltd. Alloy powder
JP7110629B2 (ja) * 2018-03-08 2022-08-02 セイコーエプソン株式会社 粉末冶金用金属粉末、コンパウンド、造粒粉末および焼結体

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4299623A (en) * 1979-11-05 1981-11-10 Azbukin Vladimir G Corrosion-resistant weldable martensitic stainless steel, process for the manufacture thereof and articles
US4434006A (en) * 1979-05-17 1984-02-28 Daido Tokushuko Kabushiki Kaisha Free cutting steel containing controlled inclusions and the method of making the same
US6827755B2 (en) * 2001-09-21 2004-12-07 Hitachi, Ltd. High-toughness and high-strength ferritic steel and method of producing the same
US20100258217A1 (en) * 2001-02-09 2010-10-14 Questek Innovatioans Llc Nanocarbide Precipitation Strengthened Ultrahigh-Strength, Corrosion Resistant, Structural Steels
US20160136729A1 (en) * 2013-06-27 2016-05-19 Robert Bosch Gmbh Method for producing a steel shaped body
US10094007B2 (en) * 2013-10-24 2018-10-09 Crs Holdings Inc. Method of manufacturing a ferrous alloy article using powder metallurgy processing

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2158687A5 (enrdf_load_stackoverflow) * 1971-10-28 1973-06-15 Poudres Grenailles Metal
JPS53125207A (en) * 1977-04-09 1978-11-01 Daido Steel Co Ltd Stainless steel sintered body
JP2817587B2 (ja) * 1993-09-17 1998-10-30 住友金属工業株式会社 ボイラ用耐摩耗複層鋼管およびその製造方法
SE0000002L (sv) * 2000-01-01 2000-12-11 Sandvik Ab Förfarande för tillverkning av ett FeCrAl-material och ett sådant marerial
SE526249C2 (sv) * 2003-12-05 2005-08-02 Erasteel Kloster Ab Stålmaterial samt användning av detta material
SE0401707D0 (sv) * 2004-07-02 2004-07-02 Hoeganaes Ab Stainless steel powder
CN101284308A (zh) * 2007-04-12 2008-10-15 吴旭升 低镍奥氏体不锈钢粉末及其应用
JP5311941B2 (ja) * 2007-11-13 2013-10-09 セイコーエプソン株式会社 粉末冶金用金属粉末、焼結体および焼結体の製造方法
JP5270926B2 (ja) * 2008-02-20 2013-08-21 三菱製鋼株式会社 鉄基焼結合金粉末
CN101797640A (zh) * 2009-02-05 2010-08-11 台耀科技股份有限公司 烧结硬化原料粉末及其烧结坯体
US8357328B2 (en) * 2009-12-14 2013-01-22 General Electric Company Methods for processing nanostructured ferritic alloys, and articles produced thereby
JP5300882B2 (ja) * 2011-01-18 2013-09-25 台耀科技股▲分▼有限公司 鋼粉末組成物及びその焼結体
JP5630430B2 (ja) 2011-12-13 2014-11-26 セイコーエプソン株式会社 粉末冶金用金属粉末および焼結体
WO2013160928A1 (ja) * 2012-04-23 2013-10-31 Ｊｆｅスチール株式会社 高強度鋼板およびその製造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4434006A (en) * 1979-05-17 1984-02-28 Daido Tokushuko Kabushiki Kaisha Free cutting steel containing controlled inclusions and the method of making the same
US4299623A (en) * 1979-11-05 1981-11-10 Azbukin Vladimir G Corrosion-resistant weldable martensitic stainless steel, process for the manufacture thereof and articles
US20100258217A1 (en) * 2001-02-09 2010-10-14 Questek Innovatioans Llc Nanocarbide Precipitation Strengthened Ultrahigh-Strength, Corrosion Resistant, Structural Steels
US6827755B2 (en) * 2001-09-21 2004-12-07 Hitachi, Ltd. High-toughness and high-strength ferritic steel and method of producing the same
US20160136729A1 (en) * 2013-06-27 2016-05-19 Robert Bosch Gmbh Method for producing a steel shaped body
US10094007B2 (en) * 2013-10-24 2018-10-09 Crs Holdings Inc. Method of manufacturing a ferrous alloy article using powder metallurgy processing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Otsuka et al , I., Magnic Properties of Fe-Based Amorphous Powders With High-Saturation Induction Produced by Spinning Water Atomization Process (SWAP). IEEE Transactions on Magnics, vol. 44, no 11, 2008, pp. 38913894 *

Also Published As

Publication number Publication date
CN105834413B (zh) 2020-03-17
EP3050985B1 (en) 2019-05-22
JP6319121B2 (ja) 2018-05-09
CN105834413A (zh) 2016-08-10
JP2016141820A (ja) 2016-08-08
EP3050985A1 (en) 2016-08-03

Similar Documents

Publication Publication Date Title
US20150252459A1 (en) Metal powder for powder metallurgy, compound, granulated powder, and sintered body
EP3042975B1 (en) Metal powder for powder metallurgy, compound, granulated powder, and sintered body
US20160228948A1 (en) Metal powder for powder metallurgy, compound, granulated powder, and sintered body
US20170241287A1 (en) Metal powder for powder metallurgy, compound, granulated powder, sintered body, and heat resistant component
US10773302B2 (en) Metal powder for powder metallurgy, compound, granulated powder, and sintered body
US20150273581A1 (en) Metal powder for powder metallurgy, compound, granulated powder, sintered body, and method for producing sintered body
US20150114178A1 (en) Metal powder for powder metallurgy, compound, granulated powder, and sintered body
US20170291220A1 (en) Metal powder for powder metallurgy, compound, granulated powder, sintered body, and heat resistant component
US20160222496A1 (en) Metal powder for powder metallurgy, compound, granulated powder, and sintered body
US20160168671A1 (en) Metal powder for powder metallurgy, compound, granulated powder, and sintered body
EP3042974B1 (en) Metal powder for powder metallurgy, compound, granulated powder, and sintered body
JP6299612B2 (ja) 粉末冶金用金属粉末、コンパウンド、造粒粉末および焼結体
JP6311615B2 (ja) 粉末冶金用金属粉末、コンパウンド、造粒粉末および焼結体
JP6299610B2 (ja) 粉末冶金用金属粉末、コンパウンド、造粒粉末および焼結体
JP7263840B2 (ja) 粉末冶金用析出硬化系ステンレス鋼粉末、コンパウンド、造粒粉末および析出硬化系ステンレス鋼焼結体
JP6314865B2 (ja) 粉末冶金用金属粉末、コンパウンド、造粒粉末および焼結体の製造方法

Legal Events

Date Code Title Description
AS Assignment

Owner name: SEIKO EPSON CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NAKAMURA, HIDEFUMI;REEL/FRAME:037547/0080

Effective date: 20151030

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: FINAL REJECTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: FINAL REJECTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION