DE69027532D1 - Verfahren zur Herstellung von porösem Metall und daraus hergestellte Formkörper, wie Katalysatorträger - Google Patents

Verfahren zur Herstellung von porösem Metall und daraus hergestellte Formkörper, wie Katalysatorträger

Info

Publication number
DE69027532D1
DE69027532D1 DE69027532T DE69027532T DE69027532D1 DE 69027532 D1 DE69027532 D1 DE 69027532D1 DE 69027532 T DE69027532 T DE 69027532T DE 69027532 T DE69027532 T DE 69027532T DE 69027532 D1 DE69027532 D1 DE 69027532D1
Authority
DE
Germany
Prior art keywords
porous metal
dried sheet
assembly
production
molded articles
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 - Fee Related
Application number
DE69027532T
Other languages
English (en)
Other versions
DE69027532T2 (de
Inventor
Kiyoshi Nakai
Tokuhiko Ikki
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.)
Asahi Tec Corp
Original Assignee
Asahi Tec 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
Priority claimed from JP2299634A external-priority patent/JPH04171014A/ja
Priority claimed from JP29963590A external-priority patent/JPH04173905A/ja
Application filed by Asahi Tec Corp filed Critical Asahi Tec Corp
Application granted granted Critical
Publication of DE69027532D1 publication Critical patent/DE69027532D1/de
Publication of DE69027532T2 publication Critical patent/DE69027532T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/022Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • F01N3/0222Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/20Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2027Metallic material
    • B01D39/2031Metallic material the material being particulate
    • B01D39/2034Metallic material the material being particulate sintered or bonded by inorganic agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/50Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10Sintering only
    • B22F3/11Making porous workpieces or articles
    • B22F3/1103Making porous workpieces or articles with particular physical characteristics
    • B22F3/1115Making porous workpieces or articles with particular physical characteristics comprising complex forms, e.g. honeycombs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10Sintering only
    • B22F3/11Making porous workpieces or articles
    • B22F3/1121Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/027Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2006Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2013Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
    • F01N3/2026Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means directly electrifying the catalyst substrate, i.e. heating the electrically conductive catalyst substrate by joule effect
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28Construction of catalytic reactors
    • F01N3/2803Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28Construction of catalytic reactors
    • F01N3/2803Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2835Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support fibrous
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28Construction of catalytic reactors
    • F01N3/2882Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2250/00Combinations of different methods of purification
    • F01N2250/02Combinations of different methods of purification filtering and catalytic conversion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00Structure of catalyst support or particle filter
    • F01N2330/10Fibrous material, e.g. mineral or metallic wool
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00Structure of catalyst support or particle filter
    • F01N2330/12Metallic wire mesh fabric or knitting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00Structure of catalyst support or particle filter
    • F01N2330/14Sintered material
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Powder Metallurgy (AREA)
DE69027532T 1990-11-05 1990-12-19 Verfahren zur Herstellung von porösem Metall und daraus hergestellte Formkörper, wie Katalysatorträger Expired - Fee Related DE69027532T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2299634A JPH04171014A (ja) 1990-11-05 1990-11-05 濾過素子
JP29963590A JPH04173905A (ja) 1990-11-05 1990-11-05 焼結金属用接着剤

Publications (2)

Publication Number Publication Date
DE69027532D1 true DE69027532D1 (de) 1996-07-25
DE69027532T2 DE69027532T2 (de) 1996-12-19

Family

ID=26562012

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69027532T Expired - Fee Related DE69027532T2 (de) 1990-11-05 1990-12-19 Verfahren zur Herstellung von porösem Metall und daraus hergestellte Formkörper, wie Katalysatorträger

Country Status (6)

Country Link
US (1) US5174951A (de)
EP (1) EP0484593B1 (de)
AT (1) ATE139471T1 (de)
AU (1) AU640722B2 (de)
CA (1) CA2032932C (de)
DE (1) DE69027532T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2707049B2 (ja) * 1993-12-09 1998-01-28 株式会社いすゞセラミックス研究所 ディーゼルパティキュレートフィルタ
US5592686A (en) * 1995-07-25 1997-01-07 Third; Christine E. Porous metal structures and processes for their production
JPH11512698A (ja) * 1995-10-06 1999-11-02 ランキサイド テクノロジー カンパニー,リミティド パートナーシップ セラミック体とその製造方法
DE19832625C2 (de) * 1998-07-21 2001-05-17 Xcellsis Gmbh Verfahren zur Herstellung eines Stapelreaktors und Stapelreaktor zur Wasserstofferzeugung aus Kohlenwasserstoffen
DE102004035311A1 (de) * 2004-07-21 2006-02-16 Robert Bosch Gmbh Verfahren zum Herstellen mindestens eines Bereichs einer Filterstruktur, insbesondere für einen Partikelfilter im Abgassystem einer Brennkraftmaschine
TW200927463A (en) * 2007-12-26 2009-07-01 Jiun-Guang Luo Ant nest-like connection scaffold structure, method of manufacturing the same, ant nest-like connection scaffold structure device and its manufacturing method

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970905A (en) * 1957-09-18 1961-02-07 Haller Inc Method of making a composite sintered powdered material article
GB922599A (en) * 1960-03-11 1963-04-03 Ici Ltd Methods of manufacturing electrodes
FR1307084A (fr) * 1961-11-29 1962-10-19 Gen Electric Mousses métalliques stratifiées et procédé pour les préparer
US3409473A (en) * 1962-08-13 1968-11-05 Clevite Corp Porous plate and method of making same
US3454396A (en) * 1964-07-09 1969-07-08 Minnesota Mining & Mfg Fuel elements
GB1263696A (en) * 1968-04-16 1972-02-16 British Ropes Ltd Improvements in or relating to the manufacture of sheets of sintered material
US3887365A (en) * 1971-03-24 1975-06-03 Nasa Process for making sheets with parallel pores of uniform size
US4017570A (en) * 1971-04-05 1977-04-12 Chemotronics International, Inc. Method of producing three dimensional skeletal structures
JPS4948060B1 (de) * 1971-04-27 1974-12-19
FR2521887A1 (fr) * 1982-02-24 1983-08-26 Comp Generale Electricite Procede de preparation d'un corps poreux metallique
JPS58213684A (ja) * 1982-06-02 1983-12-12 凸版印刷株式会社 積層セラミツク体の製造方法
US4562039A (en) * 1984-06-27 1985-12-31 Pall Corporation Porous metal article and method of making
US4613369A (en) * 1984-06-27 1986-09-23 Pall Corporation Porous metal article and method of making
US4729871A (en) * 1985-06-21 1988-03-08 Hiroshi Kawaguchi Process for preparing porous metal plate
JPS62154572A (ja) * 1985-12-27 1987-07-09 Fuji Electric Corp Res & Dev Ltd 溶融炭酸塩燃料電池の製造方法
US4722824A (en) * 1986-06-04 1988-02-02 Fine Particle Technology Corp. Method of joining green bodies prior to sintering
JPS63171802A (ja) * 1987-01-08 1988-07-15 Kobe Steel Ltd 多孔質金属焼結体の製造方法
US4780437A (en) * 1987-02-11 1988-10-25 The United States Of America As Represented By The United States Department Of Energy Fabrication of catalytic electrodes for molten carbonate fuel cells

Also Published As

Publication number Publication date
US5174951A (en) 1992-12-29
DE69027532T2 (de) 1996-12-19
EP0484593B1 (de) 1996-06-19
AU6820690A (en) 1992-06-04
EP0484593A1 (de) 1992-05-13
AU640722B2 (en) 1993-09-02
ATE139471T1 (de) 1996-07-15
CA2032932C (en) 1999-05-25
CA2032932A1 (en) 1992-05-06

Similar Documents

Publication Publication Date Title
SE9004003L (sv) Foerfarande foer tillverkning av en sintrad keramisk kropp med taett keramiskt membran
DE3778466D1 (de) Modifizierte keramische strukturen und verfahren zu deren herstellung.
DE3777870D1 (de) Keramische verbundformkoerper sowie verfahren zu ihrer herstellung.
DE60208208D1 (de) Prozesse zur herstellung von wasserfiltern
DE59002254D1 (de) Verfahren zur herstellung von traegerkatalysatoren zur oxidation von kohlenmonoxid.
DE69027532D1 (de) Verfahren zur Herstellung von porösem Metall und daraus hergestellte Formkörper, wie Katalysatorträger
KR890015957A (ko) 입자 크기가 크고 순도가 높으며 밀도가 큰 실리카 제조방법
TR26270A (tr) Polimer unsurlu seramik maddeleri ve bunlarin yapim yöntemleri.
ATE222804T1 (de) Verfahren zur herstellung eines trägerkatalysators
DE68905032D1 (de) Herstellung von faserverstaerktem keramischem verbundwerkstoff.
ATE33244T1 (de) Verfahren zur herstellung eines faserverstaerkten keramischen verbundwerkstoffes.
KR900017655A (ko) 소결체로 된 탈취제의 제조방법
ATE81334T1 (de) Verfahren zur herstellung von alpha-a1203sinterk¯rpern.
ATE19769T1 (de) Waermeisolierender keramischer formkoerper und verfahren zu seiner herstellung.
JPS56139139A (en) Carrier or catalyst
GB2010281A (en) The production of cross-linked polyolefine articles
KR910011629A (ko) 탄소성형체의 제조방법
DE69210918D1 (de) Verfahren zur Herstellung von keramischen Formen zur Herstellung von Einkristall- und Unidirektional-Gegenständen aus Metall
ATE1426T1 (de) Verfahren zur herstellung von amidimidgruppen aufweisenden polyhydantoinen, deren verwendung zur herstellung hitzebestaendiger beschichtungsmaterialien sowie daraus hergestellte lackmischungen.
JPS57194049A (en) Production of frame assembled catalytic body
RU94043034A (ru) Способ получения композиционного материала
KR920011962A (ko) RB-SiC/MoSi₂복합재료의 제조방법
TH10960EX (th) วิธีการผลิตโลหะที่มีความพรุนและผลิตภัณฑ์โลหะด้วยการใช้โลหะชนิดเดียวกันเช่นนั้นเป็นพาหะสำหรับตัวเร่งปฏิกิริยา
KR840002943A (ko) 여과지용 고강도 콘크리트 집수블록 제조방법

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee