NO147553B - Polykrystallinsk, sintret siliciumnitridgjenstand og fremgangsmaate ved fremstilling derav - Google Patents

Polykrystallinsk, sintret siliciumnitridgjenstand og fremgangsmaate ved fremstilling derav Download PDF

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Publication number
NO147553B
NO147553B NO780003A NO780003A NO147553B NO 147553 B NO147553 B NO 147553B NO 780003 A NO780003 A NO 780003A NO 780003 A NO780003 A NO 780003A NO 147553 B NO147553 B NO 147553B
Authority
NO
Norway
Prior art keywords
car
arm
bucket
vertical
crane
Prior art date
Application number
NO780003A
Other languages
English (en)
Other versions
NO780003L (no
NO147553C (no
Inventor
Svante Prochazka
Charles David Greskovich
Richard Joseph Charles
Robert Arthur Giddings
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of NO780003L publication Critical patent/NO780003L/no
Publication of NO147553B publication Critical patent/NO147553B/no
Publication of NO147553C publication Critical patent/NO147553C/no

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/12—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances ceramics
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/584—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride
    • C04B35/593—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride obtained by pressure sintering
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/584—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride
    • C04B35/593—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride obtained by pressure sintering
    • C04B35/5935—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride obtained by pressure sintering obtained by gas pressure sintering

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Products (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Silicon Compounds (AREA)

Description

Bilgrøftemaskin.
En graveskuffe monteres vanligvis på en hydraulisk bilkran hvor den loddrette arm (merket med A på vedlagte tegning) kan dreie seg om sin aksel, og hvor vinkelen mellom den vannrette arm B og de to loddrette armer A og C kan reguleres ved dobbeltvirkende hydrauliske sy lindre.
Ifølge oppfinnelsen monteres graveskuffen på kranens ytterste loddrette arm
C etter teleskop-prinsippet. Kranarmen C gis et kvadratisk tverrsnitt i stål med hullrekke for tverrgående bolter loddrett på alle sider. Utenpå denne arm trekkes en hul stålarm hvor hulrommet har kvadratisk tverrsnitt. Denne hularm D festes til kranarmen C ved gjennomgående bolter.
Gjennom nederste ende av den hule arm, som her er massiv, er det lagret en aksel loddrett på armen.
Endene av denne aksel er festet øverst
på hver sidevegg av graveskuffen E. På en tapp F montert loddrett ut fra hul-armens ytterkant (når kranen er svingt ut på siden av bilen, som tegningen viser) er det lagret en vannrett aksel loddrett på tappen. På hver side av tappen og hularmen er det lagret sylindre G til denne
aksel. Disse to sylindre som også er dobbeltvirkende, er festet med nederste ende til øverste kant på skuffens bakvegg gjennom bevegelige ledd.
Gjennom regulering av trykket i de to
parallellvirkende sylindre, kan man få skuffen i de nødvendige arbeidsstillinger for graving loddrett fra bilens lengderetning, slik at den kan grave ut vanlig vei-grøftprofil i en lengde av ca. 80 cm mellom hver gang bilen må flyttes.
Full skuffe løftes vannrett og tømmes
over bilens lasteplan ved hjelp av kranen.
Ved å feste hularmen D til kranarmen C etter at hularmen er dreiet 180 grader, kan man på samme måte grave loddrett mot bilens lengderetning.
Ved å dreie hularmen pluss eller minus 90 grader før monteringen, kan man få
gravebevegelser forover eller bakover langs bilens lengderetning.
Ved å bolte hularmen D til kranarmen C gjennom hull lenger nede på denne, kan man få skuffen i lavere arbeidsstilling.
Oppfinnelsen tar først og fremst sikte på grøftegraving og grøfterensning langs kjørbar veg. Mens hularmen D er montert til heisearmen C gjennom øverste bolthull, kan graveskuffen grave veggrøft med ca. 70 cm. dybde under vegplanet som bilen står på.
Ved å montere hularmen lavere ned på kranarmen, kan man grave grøft med ca. 140 cm dybde.

Claims (1)

  1. Bilgrøftemaskin for hydraulisk bilkran hvor den faste loddrette arm kan dreie seg om sin aksel, og i toppen er leddbart forbundet med en horisontal kranarm og denne igjen forbundet med en vertikal arm, og hvor leddvinklene kan reguleres ved dobbeltvirkende hydrauliske sylindre, karakterisert ved at en graveskuffe
    (E) er opphengt svingbart i nedre ende av en vertikal hularm (D) som er innstillbart
    tredd utenpå vertikalar men (C), idet der til skuffens og armenes innbyrdes bevegelse
    samt kranstenderens dreining er anordnet hydrauliske sylindere, hvorav de som be-veger selve skuffen (E) er festet såvel til skuffens øvre bakkant, som til den hule arms (D) øvre ende (F) på motsatt side av skuffens bakkant slik at skuffen ved hjelp av samkjøring av de hydrauliske sylindere kan grave såvel inn mot bilen som ut fra den, og langs bilen, samt svinges opp
    til tømming på bilens lasteplan, idet den hule arm (D) hviler på horisontale bolter som kan anbringes i forskjellige hull gjennom de vertikale armer (D og C) og dermed i forskjellige høyder og forskjellige vinkler med bilens lengderetning.
NO780003A 1977-01-03 1978-01-02 Polykrystallinsk, sintret siliciumnitridgjenstand og fremgangsmaate ved fremstilling derav NO147553C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/756,086 US4119690A (en) 1977-01-03 1977-01-03 Sintering of silicon nitride using Mg and Be additives

Publications (3)

Publication Number Publication Date
NO780003L NO780003L (no) 1978-07-04
NO147553B true NO147553B (no) 1983-01-24
NO147553C NO147553C (no) 1983-05-04

Family

ID=25041982

Family Applications (1)

Application Number Title Priority Date Filing Date
NO780003A NO147553C (no) 1977-01-03 1978-01-02 Polykrystallinsk, sintret siliciumnitridgjenstand og fremgangsmaate ved fremstilling derav

Country Status (9)

Country Link
US (2) US4119690A (no)
JP (1) JPS6048474B2 (no)
CA (1) CA1088960A (no)
DE (1) DE2759159A1 (no)
FR (1) FR2376090A1 (no)
GB (1) GB1590968A (no)
IT (1) IT1089141B (no)
NL (1) NL7800063A (no)
NO (1) NO147553C (no)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218257A (en) * 1975-04-07 1980-08-19 Ngk Insulators, Ltd. Sintered silicon nitride body and a method of producing the same
IT1117334B (it) * 1977-12-23 1986-02-17 Fiat Spa Procedimento per la sinterizazzione di nitruro di silicio reaction bonded
DE2812019C2 (de) * 1978-03-18 1982-06-03 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Vorrichtung zum Herstellen eines Vorformlings aus Siliziumnitrid
US4209478A (en) * 1978-08-16 1980-06-24 Rockwell International Corporation Method of sintering ceramics
US4285895A (en) * 1979-03-23 1981-08-25 Ford Motor Company Method of densifying a reaction bonded silicon nitride article
US4374792A (en) * 1979-08-09 1983-02-22 General Electric Company Sintering of silicon nitride with Be additive
JPS5771872A (en) * 1980-10-20 1982-05-04 Kobe Steel Ltd Manufacture of high density silicon nitride sintered body
JPS57106573A (en) * 1980-12-19 1982-07-02 Kobe Steel Ltd Manufacture of high density silicon nitride sintered body
JPS57106574A (en) * 1980-12-19 1982-07-02 Kobe Steel Ltd Method of sintering silicon nitride
EP0100380B1 (en) * 1981-02-05 1987-06-16 Sumitomo Electric Industries Limited Method for plastic deformation of non-ferrous metals
JPS5921580A (ja) * 1982-07-26 1984-02-03 住友電気工業株式会社 鉄および鉄合金用塑性加工工具
BR8208097A (pt) * 1982-09-30 1984-08-14 Ford Motor Co Processo para preparar um objeto e uma estrutura compreendendo nitreto de silicio ligado por reacao/prensada a quente;processo para preparar uma feramenta de corte;artigo;estrutura;produto
JPS59501629A (ja) * 1982-09-30 1984-09-13 フオ−ド　モ−タ−　カンパニ− ホツトプレスによる高強度Ｓｉ↓３Ｎ↓４の製造方法
US4571414A (en) * 1984-04-11 1986-02-18 General Electric Company Thermoplastic molding of ceramic powder
US4600182A (en) * 1984-10-22 1986-07-15 United Technologies Corporation High density, sintered silicon nitride containing articles and methods for using the same to process molten nickel
US4636480A (en) * 1985-01-18 1987-01-13 General Electric Company Composite by infiltration
US4661461A (en) * 1985-06-03 1987-04-28 General Electric Company Composite of Si3 N4 by infiltration
US4689189A (en) * 1985-06-03 1987-08-25 General Electric Company Composite of Si3 N4 by infiltration
US4719187A (en) * 1985-10-10 1988-01-12 Corning Glass Works Dense sintered bodies of nitride materials
GB2256651B (en) * 1986-07-15 1993-06-30 Norton Co Improved rolling contact bearing,material for bearing surfaces,and processes therefor
JPS63182259A (ja) * 1987-01-23 1988-07-27 日本碍子株式会社 均質窒化珪素焼結体の製造方法
JP2736387B2 (ja) * 1988-07-27 1998-04-02 日本特殊陶業株式会社 転がり軸受材料用窒化珪素基焼結体及びその製造方法
US5225127A (en) * 1989-07-18 1993-07-06 Sumitomo Electric Industries, Ltd. Process for production of sintered silicon nitride made article
DE69008064T2 (de) * 1989-07-18 1994-08-25 Sumitomo Electric Industries Verfahren zur Herstellung eines gesinterten Gegenstandes aus Siliciumnitrid.
US5041248A (en) * 1989-09-29 1991-08-20 General Electric Company Process for making fine diameter ceramic fibers using a moldable ceramic composition
US5422322A (en) * 1993-02-10 1995-06-06 The Stackpole Corporation Dense, self-sintered silicon carbide/carbon-graphite composite and process for producing same
US5580834A (en) * 1993-02-10 1996-12-03 The Morgan Crucible Company Plc Self-sintered silicon carbide/carbon graphite composite material having interconnected pores which may be impregnated and raw batch and process for producing same
US5968653A (en) * 1996-01-11 1999-10-19 The Morgan Crucible Company, Plc Carbon-graphite/silicon carbide composite article
KR101851879B1 (ko) 2016-12-29 2018-04-24 강릉원주대학교산학협력단 메탈실리콘과 아크방전을 이용한 고순도 탄화규소의 제조방법
JP7240214B2 (ja) * 2019-03-18 2023-03-15 太平洋セメント株式会社 窒化物の粉砕方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB970639A (en) * 1960-03-24 1964-09-23 Plessey Co Ltd Method of producing high density silicon nitride
US3992497A (en) * 1973-05-18 1976-11-16 Westinghouse Electric Corporation Pressureless sintering silicon nitride powders
FR2274737A1 (fr) * 1974-06-13 1976-01-09 Kleber Colombes Amortisseur de chocs pour defenses d'accostage
US4134947A (en) * 1975-04-07 1979-01-16 Ngk Insulators, Ltd. Sintered silicon nitride body and a method of producing the same
US3953221A (en) * 1975-04-22 1976-04-27 The United States Of America As Represented By The Secretary Of The Navy Fully dense ceramic article and process employing magnesium oxide as a sintering aid
US4017319A (en) * 1976-01-06 1977-04-12 General Electric Company Si3 N4 formed by nitridation of sintered silicon compact containing boron

Also Published As

Publication number Publication date
DE2759159C2 (no) 1989-08-10
NO780003L (no) 1978-07-04
US4119475A (en) 1978-10-10
JPS53102321A (en) 1978-09-06
NO147553C (no) 1983-05-04
US4119690A (en) 1978-10-10
CA1088960A (en) 1980-11-04
GB1590968A (en) 1981-06-10
FR2376090A1 (fr) 1978-07-28
NL7800063A (nl) 1978-07-05
JPS6048474B2 (ja) 1985-10-28
IT1089141B (it) 1985-06-18
FR2376090B1 (no) 1984-06-22
DE2759159A1 (de) 1978-07-13

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