• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1467904 Porous refractory articles GROUPEMENT POUR LES ACTIVITIES ATOMIQUES ET AVANCEES 29 May 1974 [30 May 1973 21 Feb 1974] 23881/74 Headings C1J and C1H A refractory article is produced by forming an aqueous foamed dispersion comprising a refractory hydraulic cement and a refractory aggregate, casting and setting the dispersion in a mould to form a solid, shaped article, drying the article and firing the dried article at a temperature below the sintering temperature. The refractory cement may be calcium aluminate or magnesium chromate. The refractory aggregate may be alumina, zirconia, calcium zirconate, or silicon carbide. The refractory aggregate may also comprise ceramic fibres, e.g. of zirconia, alumina, a compound of alumina and silica, and silica. The firing is preferably at less than 1000‹ C. In forming the foamed dispersion, a frothing agent and a stabilizer (e.g. a soluble resin or polysaccharide) may be used.
    公开号:SU727133A3
    申请号:SU742030906
    申请日:1974-05-29
    公开日:1980-04-05
    发明作者:Давио Жан；Маршэ Мишель
    申请人:Групман Пур Лез Активит Атомик Э Авансе (Фирма)；
    IPC主号:
    专利说明:

    I
    The invention relates to the refractory industry, mainly to methods for producing refractory materials with controlled porosity
    A known method for producing refractory insulating products with controlled porosity includes dispersing a mixture of refractory cement and refractory refractory; kit in 0.5 3% aqueous emulsion of a blowing agent with a pH greater than 3, casting the resulting stabilized mixture into, drying, and firing Ts.
    The disadvantage of this method is the insufficient heat resistance of the products.
    The aim of the invention is to obtain products resistant to molten aluminum and repeated thermal shocks.
    This is achieved by the fact that in the method of obtaining refractory insulating products with controlled porosity, including dispersing a mixture of refractory cement in a refractory aggregate in a 0.5-3% water emulsion of a frother with a PH of more than 3, casting the resulting stabilized media into an fi erm, drying and firing, the molds are molded into a mold. about the mixture of water-cement are stabilized with a ratio Of 2-0, 5 s and the firing leads to a temperature of 780-82 ° C.
    The method is carried out trail / UEdagch
    in a way.
    A dispersion mixture of refractory cement and 10-7% of refractory preservative is of a certain quantity; the quantity of wool: and the dispersed product is emulsified
    with the help of my addition. 0.5-3% relative to the carrier EOD1-.1 of the stable foaming product stable; whom in an environment with a pH equal to more than 3, due to the addition of a stabilizer spill
    and dry the product in the form of a greased wall which is obtained in this way, the product is potter-fired at a temperature below
    The preparation of the intermediate emz / fused przd-kta can be carried out by simultaneous mixing of the components in the water in which; added foam product & product.
    Fireproof cement used
    consists of prii., of course, of z.lyukkv.t. calcium, but in some samples it is preferable to use cement based on chromate й
    Refractory aggregates consist
    from alumina., black or co;
    权利要求:
    Claims (1)
    [1]
    Claim
    A method for producing refractory insulating products with controlled porosity, comprising dispersing a mixture of refractory cement and refractory aggregate in a 0.5-3% aqueous emulsion of a foaming agent with a PH of more than 3, casting the resulting stabilized mixture into a mold, drying and firing, characterized in that, in order to obtain products resistant to molten aluminum and repeated thermal shocks, a stabilized mixture with a water-cement ratio of 0.2-0.5 is cast into the mold, and firing is carried out at a temperature of 730-820 ° C.
    类似技术:
    公开号 | 公开日 | 专利标题
    US4255197A|1981-03-10|Process for obtaining refractory materials with controlled characteristics of porosity and density
    US3041190A|1962-06-26|Compositions and processes for making foamed alumina refractory products, and articles so produced
    SU727133A3|1980-04-05|Method of producing refractory insulating articles with controlled porousity
    US2529835A|1950-11-14|Metal-casting molds and processes and materials for producing the same
    SU651688A3|1979-03-05|Method of manufacturing ceramic composition material
    GB650466A|1951-02-28|Improved method of and apparatus for the preparation of casting moulds
    PL120434B3|1982-02-27|Clay-cement mortar and method of making the samentnogo rastvora
    JPH10130076A|1998-05-19|Production of porous ceramic
    EP0015135B1|1982-12-08|Process for making heat insulating firebricks
    GB871428A|1961-06-28|Improvements in or relating to refractory materials
    JP3040729B2|2000-05-15|Method for manufacturing ceramic molded body
    US2140650A|1938-12-20|Method of making articles of ceramic bonded granular material
    JPH0222183A|1990-01-25|Production of porous ceramics
    JP6545576B2|2019-07-17|Method of producing hardened cement body
    SU775091A1|1980-10-30|Method of producing porous quartz ceramics
    SU1203066A1|1986-01-07|Method of preparing porous expanded clay aggregate and concrete mix
    SU525640A1|1976-08-25|Heat and sound insulation material
    SU1004313A1|1983-03-15|Method for making products from aluminosilicate ceramic concretes
    JP2553006B2|1996-11-13|Shelf board for firing ceramics
    Kryuchkov et al.1999|A heat-insulating lightweight material
    GB1408998A|1975-10-08|Ceramic materials with open porosity
    JPS5858955A|1983-04-07|Improving method for air permeability of mold
    JPS5550947A|1980-04-14|Ceramic core for precision casting
    SU691237A1|1979-10-15|Paint for casting moulds
    SU609735A1|1978-06-05|Method of manufacturing porous ceramic articles
    同族专利:
    公开号 | 公开日
    US4309371A|1982-01-05|
    JPS5022011A|1975-03-08|
    IT1021008B|1978-01-30|
    CH608228A5|1978-12-29|
    DE2424623A1|1974-12-19|
    GB1467904A|1977-03-23|
    CA1016961A|1977-09-06|
    AU6875974A|1975-11-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3269849A|1964-12-11|1966-08-30|Aluminum Co Of America|Fibrous refractory|
    US3294562A|1964-12-11|1966-12-27|Aluminum Co Of America|Refractory composition|
    US3758319A|1970-10-22|1973-09-11|Stanley Works|Method for forming foamed concrete structures|US4454508A|1982-03-05|1984-06-12|Burroughs Corporation|Timed token ring|
    CA1214794A|1982-11-15|1986-12-02|Robert L. Farmer|Machinable fiber board|
    JPH0465030B2|1987-02-18|1992-10-16|Nichias Corp|
    DE3872574D1|1987-04-24|1992-08-13|Arturo Broggini|ARTIFICIAL STONES AND METHOD FOR THE PRODUCTION THEREOF.|
    AT412472B|2002-08-09|2005-03-25|Bezard Denis Dr|HYDRAULICALLY BENDING MASS|
    JP3985042B2|2002-10-18|2007-10-03|独立行政法人産業技術総合研究所|Ultralight ceramic foam and manufacturing method thereof|
    CN107298580A|2017-06-20|2017-10-27|浙江锦诚新材料股份有限公司|A kind of blast furnace iron notch mud covers castable|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7319773A|FR2231634B1|1973-05-30|1973-05-30|
    FR7405959A|FR2261998B2|1974-02-21|1974-02-21|
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