• 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:
    The invention relates to the production of ceramic material operating in contact with the aluminum melt, namely for electromagnetic pumps, crucibles, pipes for transferring the melt, gating channels, etc. To increase the resistance to the aluminum melt, 70-80% silicon nitride and 20-30% calcium aluminate are mixed first dry, h;. with moisture, poured into molds, and after curing, heat treated at 80 ° C. The resulting material has the following properties: density 2.1-2.5 g / cm, compressive strength 45-70 MPa, modulus 4.10 -6.10 MPa, thermal conductivity 2.5-3 W / m.grad, CTE 3.6-3.10 1 / ° C. 1 tab.
    公开号:SU1261559A3
    申请号:SU3397515
    申请日:1982-03-03
    公开日:1986-09-30
    发明作者:Давио Жан
    申请人:Новатом (Фирма)；
    IPC主号:
    专利说明:

    ate
    "1261
    The invention is related to the production of a ceramic material primarily for the manufacture of electromagnetic pumps.
    The aim of the invention is to provide material resistance to pacm: ia wu aluminum.
    For the manufacture of material nitrvd
    91
    the silicon obtained by nitriding and calcium aluminate are first mixed dry and then in a moist form in a mixer and poured into molds. After curing, the blanks are removed from the molds and calcined at. In the manufacture of silicon nitride is used, the composition of which is given in Table. one.
    Table 1
    31 21.4 11L
    Material properties in
    Material characteristics given in Table 2: sufficient resistance to mechanical stress, increased thermal conductivity, low thermal expansion coefficient, low modulus of elasticity and, consequently, increased resistance to thermal shock B in combination with chemical resistance POS 26.2
    16.2 19.0 10.4
    Table 2
    dependencies
    FROM COMPOSITION
    They want to use the proposed material in electromagnetic pumps for transferring molten aluminum, for making molds for casting aluminum j pipes, runner channels for non-liquid liquids and other products whose durability is provided by these properties.
    3f26f5594
    权利要求:
    Claims (1)
    [1]
    The claims of the invention are that, in order to provide a refractory material, advantageously, it contains, as a bond, euvenno-for devices working in calcium, calcium aluminate at the next contact with the molten aluminum, including the ratio of components, wt.X: silicon nitride and cold-hole silicon nitride 70 - 80
    Dehydration binder, distinguished by calcium aluminate 20-30 of its resistance to melt.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1261559A3|1986-09-30|Refractory material
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    SU527405A1|1976-09-05|Composite material
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    SU910559A1|1982-03-07|Heat insulating mix
    SU1281551A1|1987-01-07|Charge for manufacturing light-weight heat-insulating material
    SU624898A1|1978-09-25|Mass for lining induction heaters
    SU1348322A1|1987-10-30|Raw mixture for manufacturing roastless light-weight heat-insulating articles
    SU545610A1|1977-02-05|Raw mix for the production of refractory concrete
    SU833738A1|1981-05-30|Raw mixture for producing light-weight fire-resistant concrete
    同族专利:
    公开号 | 公开日
    NO154049C|1986-07-09|
    NO154049B|1986-04-01|
    AU547176B2|1985-10-10|
    CA1173866A|1984-09-04|
    FR2501191B1|1985-06-21|
    JPH0139990B2|1989-08-24|
    EP0060191B1|1985-06-19|
    JPS57160973A|1982-10-04|
    MX156240A|1988-07-27|
    FR2501191A1|1982-09-10|
    DE3264190D1|1985-07-25|
    AU8110382A|1982-09-09|
    EP0060191A1|1982-09-15|
    US4404292A|1983-09-13|
    NO820652L|1982-09-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2734682C1|2019-11-12|2020-10-21|Федеральное государственное бюджетное учреждение науки Институт металлургии и материаловедения им. А.А. Байкова Российской академии наук |Method of making silicon nitride ceramic with calcium aluminate sintering additive with low melting|US3116157A|1960-12-23|1963-12-31|Union Carbide Corp|Refractory ramming mix|
    DE2125073C3|1971-05-19|1982-05-13|Dnepropetrovskij inženerno-stroitel'nyj institut, Dnepropetrovsk|Refractory material|
    US4248752A|1972-06-23|1981-02-03|The Carborundum Company|Refractory moldable composition|
    FR2203788B1|1972-10-24|1980-02-15|Novatome Ind|
    US4142908A|1973-05-30|1979-03-06|Groupement Pour Les Activites Atomiques Et Avancees|Refractory insulating products having controlled porosity and the preparing thereof by the wet method|
    US4150189A|1974-12-30|1979-04-17|Johns-Manville Corporation|Shapeable insulating material for use with molten aluminum|
    CH596109A5|1975-01-15|1978-02-28|Activite Atom Avance|
    GB1510310A|1975-08-14|1978-05-10|Atomic Energy Authority Uk|Protection of silicon nitride artefacts|
    DE2801269C3|1977-01-17|1981-02-26|Aluminum Company Of America, Pittsburgh, Pa. |Corrosion-resistant pourable refractory mixture|
    FR2420515B1|1978-03-21|1983-01-14|Produits Refractaires|
    JPS5827232B2|1979-08-07|1983-06-08|Kawasaki Steel Co|
    JP5626776B2|2010-07-30|2014-11-19|エバック株式会社|Pressure pipe|GB2155005A|1984-03-02|1985-09-18|Secr Defence|Silicon nitride refractories|
    US6197243B1|1993-04-16|2001-03-06|Ut Battelle, Llc|Heat distribution ceramic processing method|
    CA2683346A1|2006-12-21|2008-07-17|M. Saied Afshar|Aluminum resistant refractory composition and method|
    JP5078842B2|2008-03-28|2012-11-21|ニチアス株式会社|Refractory composition, fire-resistant molded body and fire-resistant fired body|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8104277A|FR2501191B1|1981-03-04|1981-03-04|REFRACTORY MATERIAL IN PARTICULAR FOR CONTACT WITH MOLTEN ALUMINUM AND PROCESS FOR PRODUCING THE SAME|
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