JP2018500458A - 金属繊維を含む焼結金属体 - Google Patents
金属繊維を含む焼結金属体 Download PDFInfo
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- JP2018500458A JP2018500458A JP2017525553A JP2017525553A JP2018500458A JP 2018500458 A JP2018500458 A JP 2018500458A JP 2017525553 A JP2017525553 A JP 2017525553A JP 2017525553 A JP2017525553 A JP 2017525553A JP 2018500458 A JP2018500458 A JP 2018500458A
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- 239000000835 fiber Substances 0.000 title claims abstract description 125
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 91
- 239000002184 metal Substances 0.000 title claims abstract description 91
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 58
- 239000010935 stainless steel Substances 0.000 claims abstract description 55
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 18
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 13
- 238000005304 joining Methods 0.000 claims abstract description 7
- 238000005245 sintering Methods 0.000 claims description 41
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 23
- 229910001039 duplex stainless steel Inorganic materials 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 239000011651 chromium Substances 0.000 claims description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 150000004767 nitrides Chemical class 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims 1
- 230000007797 corrosion Effects 0.000 description 13
- 238000005260 corrosion Methods 0.000 description 13
- 238000003466 welding Methods 0.000 description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 230000002051 biphasic effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 229920006240 drawn fiber Polymers 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910001318 Zeron 100 Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical group [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- 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
- B22F3/002—Manufacture of articles essentially made from metallic fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2027—Metallic material
- B01D39/2041—Metallic material the material being filamentary or fibrous
- B01D39/2044—Metallic material the material being filamentary or fibrous sintered or bonded by inorganic agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/10—Filter screens essentially made of metal
- B01D39/12—Filter screens essentially made of metal of wire gauze; of knitted wire; of expanded metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2027—Metallic material
- B01D39/2041—Metallic material the material being filamentary or fibrous
-
- 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
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/062—Fibrous 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
- 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
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
-
- 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
- B22F3/10—Sintering only
- B22F3/1017—Multiple heating or additional steps
- B22F3/1028—Controlled 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
- 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
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
- B22F3/1103—Making porous workpieces or articles with particular physical characteristics
- B22F3/1109—Inhomogenous pore distribution
-
- 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
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
-
- 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
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- 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
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0618—Non-woven
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1225—Fibre length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1233—Fibre diameter
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2201/00—Treatment under specific atmosphere
- B22F2201/02—Nitrogen
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- B22F2301/00—Metallic composition of the powder or its coating
- B22F2301/35—Iron
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- 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
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- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- Textile Engineering (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Filtering Materials (AREA)
Abstract
Description
− 二相ステンレス鋼繊維を含む、またはからなる不織ウェブを含む、またはからなる未焼結金属体を製造するステップ。好ましくは、不織ウェブ中のステンレス繊維は、均一な化学組成を有する。二相ステンレス鋼繊維は、二相ステンレス鋼グレードのステンレス鋼繊維を意味する。二相ステンレス鋼繊維は、好ましくはスーパー二相鋼グレードであってよい。
− 窒素(N2)を含む焼結雰囲気中、1000〜1300℃の間の焼結温度において焼結オーブン中で金属体を焼結させるステップ。好ましくは焼結温度は1000℃〜1200℃の間に維持され、より好ましくは焼結温度は1150℃未満に維持される。焼結雰囲気の窒素分圧は10〜100mbarの間であり、好ましくは30mbarを超え、より好ましくは50mbarを超え、好ましくは70mbar未満であり、より好ましくは50mbar未満である。
− 焼結後に焼結オーブン中で焼結金属体を冷却するステップであって、950℃〜650℃の間の温度範囲の冷却が、1.5時間未満、好ましくは1時間未満、より好ましくは45分未満で行われるステップ。
Claims (15)
- 焼結金属体であって、
不織ウェブ配置で金属繊維を含み、
前記金属繊維が、二相ミクロ組織を有するステンレス鋼繊維を含み、
前記二相ミクロ組織が、オーステナイトおよびフェライトの混合ミクロ組織であり、
前記ステンレス鋼繊維が、それらの接触点の少なくとも一部において焼結接合によって接合される、焼結金属体。 - 前記ステンレス鋼繊維中にσ相が存在しない、請求項1に記載の焼結金属体。
- 二相ミクロ組織を有する前記ステンレス鋼繊維が、30〜70体積パーセントの間のオーステナイトのパーセント値を有する、請求項1または2に記載の焼結金属体。
- 二相ミクロ組織を有する前記ステンレス鋼繊維がスーパー二相ステンレス鋼繊維である、請求項1〜3のいずれか一項に記載の焼結金属体。
- 前記ステンレス鋼繊維の前記二相ミクロ組織中、オーステナイト結晶粒の平均結晶粒度が、前記ステンレス鋼繊維の相当繊維直径の半分よりも小さい、請求項1〜4のいずれか一項に記載の焼結金属体。
- 前記ステンレス鋼繊維が、それらの体積にわたって実質的に均一な重量パーセント値のクロムおよびモリブデンを有する、請求項1〜5のいずれか一項に記載の焼結金属体。
- 二相ミクロ組織を有する前記ステンレス鋼繊維が窒化物を実質的に含まない、請求項1〜6のいずれか一項に記載の焼結金属体。
- 二相ミクロ組織を有する前記ステンレス鋼繊維が1.5〜100μmの間の相当直径を有する、請求項1〜7のいずれか一項に記載の焼結金属体。
- 不織ウェブ配置の金属繊維の2つ以上の層を含み、
前記金属繊維の2つ以上の層の少なくとも2つの層が、二相ミクロ組織を有するステンレス鋼繊維を含み、前記二相ミクロ組織がオーステナイトおよびフェライトの混合ミクロ組織であり、
前記ステンレス鋼繊維が、それらの接触点の少なくとも一部において焼結接合によって接合され、
前記少なくとも2つの層の第1の、二相ミクロ組織を有する前記ステンレス鋼繊維の平均相当直径が、前記少なくとも2つの層の第2の、二相ミクロ組織を有する前記ステンレス鋼繊維の平均相当直径とは異なる、請求項1〜8のいずれか一項に記載の焼結金属体。 - 前記金属体が、前記焼結金属体中に焼結した1つ以上の金属メッシュを含む、請求項1〜9のいずれか一項に記載の焼結金属体。
- 請求項1〜10のいずれか一項に記載の焼結金属体の製造方法であって、
− 二相ステンレス鋼繊維を含む不織ウェブを含む未焼結金属体を製造するステップと;
− 窒素を含む焼結雰囲気の焼結オーブン中、焼結温度で前記金属体を焼結させるステップであって、前記焼結温度が1000〜1300℃の間であり、前記焼結雰囲気の窒素分圧が10〜100mbarの間であるステップと;
− 焼結後に前記焼結オーブン中で前記焼結金属体を冷却するステップであって、950℃〜650℃の間の温度範囲の冷却が1.5時間未満で行われるステップと、
を含む方法。 - 前記焼結温度から650℃までの冷却が1.5時間未満の時間で行われる、請求項11に記載の方法。
- 前記焼結温度から650℃までの冷却が窒素ガスを含む雰囲気中で行われる、請求項11または12に記載の方法。
- 前記焼結温度からの焼結金属体の冷却の少なくとも一部が、前記焼結オーブン中に窒素ガスを導入することによって少なくとも部分的に実現される、請求項12または13に記載の方法。
- 請求項1〜10のいずれか一項に記載の焼結金属体を含む濾過膜。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14192957.0 | 2014-11-13 | ||
EP14192957 | 2014-11-13 | ||
PCT/EP2015/075682 WO2016075005A1 (en) | 2014-11-13 | 2015-11-04 | Sintered metal object comprising metal fibers |
Publications (2)
Publication Number | Publication Date |
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JP2018500458A true JP2018500458A (ja) | 2018-01-11 |
JP6706258B2 JP6706258B2 (ja) | 2020-06-03 |
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Application Number | Title | Priority Date | Filing Date |
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JP2017525553A Active JP6706258B2 (ja) | 2014-11-13 | 2015-11-04 | 金属繊維を含む焼結金属体 |
Country Status (6)
Country | Link |
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US (1) | US20170239602A1 (ja) |
EP (1) | EP3218081B1 (ja) |
JP (1) | JP6706258B2 (ja) |
KR (1) | KR102353735B1 (ja) |
CN (1) | CN107073580B (ja) |
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KR20200102471A (ko) | 2017-12-22 | 2020-08-31 | 쓰리엠 이노베이티브 프로퍼티즈 캄파니 | 전해 장치를 위한 분산된 촉매-함유 애노드 조성물 |
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US4708741A (en) * | 1986-06-13 | 1987-11-24 | Brunswick Corporation | Rapid sintering feedstock for injection molding of stainless steel parts |
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JP2016507658A (ja) * | 2012-09-27 | 2016-03-10 | ナムローゼ・フェンノートシャップ・ベーカート・ソシエテ・アノニムN V Bekaert Societe Anonyme | 金属繊維の塊及びこのような塊を製造する方法 |
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EP3218081B1 (en) | 2018-09-12 |
KR20170085497A (ko) | 2017-07-24 |
US20170239602A1 (en) | 2017-08-24 |
EP3218081A1 (en) | 2017-09-20 |
CN107073580B (zh) | 2019-08-20 |
CN107073580A (zh) | 2017-08-18 |
KR102353735B1 (ko) | 2022-01-20 |
JP6706258B2 (ja) | 2020-06-03 |
WO2016075005A1 (en) | 2016-05-19 |
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