• 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:
    Improved refractories for resisting attack of molten titanium aluminum and similar metals are provided by the inclusion of sulfur. Metal, oxygen, and sulfur combinations, wherein sulfur is present at from 10 to 60 atomic percent, are particularly useful. Disclosed is a material having the atomic formula MaSbOc where O is oxygen, S is sulfur, and M is at least one metal selected from the scandium subgroup of the periodic table transition metals (scandium, yttrium and the rare earths) and aluminum. In an alternate material, M is comprised of at least two elements, the first selected as above and the second selected from the alkaline earth metal group. A preferred material is formed by mixing and firing CaS and Y2O3 in proportions which results in (Ca+Y)0.43S0.14O0.43.
    公开号:SU1243620A3
    申请号:SU802913904
    申请日:1980-04-23
    公开日:1986-07-07
    发明作者:Джон Блэкберн Мартин；Прайс Смит Майкл；З.Хайден Стивен
    申请人:Юнайтед Текнолоджиз Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    "
    The invention relates to sulfur-containing refractories that can be used to make crucibles and molds for casting reactive materials or alloys, in particular titanium and aluminum.
    The purpose of the invention is to reduce the interaction with the titanium-aluminum melt.
    In order to manufacture tanks, the invention uses well-known powder forming methods, for example, finely ground calcium sulphide and yttria powders are mixed with a maximum particle size of less than 44 microns, then the mixture is pressed without using the binder and calcined at 1400 1600 C for 1 hour
    In another method, anhydrous sludge containing 9 h of methanol and 1 h of a mixture of powders is used to coat a thickness of 0.1 mm on the inner surface of the alumina-based mold. After evaporation of the methanol, the form is subjected to rotation in the atmosphere of air or another atmosphere at 1150-1600 ° C. The thickness of the coating may vary depending on the need to save material or the need to obtain a higher
    Resistance for use under particularly severe conditions.
    Other liquid solvents can also be used; however, the use of water and other materials that react with the sulfide should be avoided.
    PRI m e, p 1. Calcium sulfide (CaS) is mixed with yttria oxide






    Editor A. Shandor Order 3720/59
    Compiled by, Sokolova
    Techred. L. Oleinr; Proofreader M.Maksimishinets
    Circulation 640 Subscription
    VNIIGSh of the USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, Projecto st., 4
    five
    0
    five
    0
    () in a molar ratio of 1: 9. The resulting material has the composition (Ca + J) g, S p g O O, 57 5 resistant to the action of the molten metal.
    Example 2. Calcium sulfide (CaS) is mixed with yttria () in a molar ratio of 7: 3. Obtained m: material with the composition (Ca + J) g 0.14 о. resistant to molten metal.
    Example 3. Calcium sulfide is mixed with yttria in a molar ratio of 4: 1. The resulting material composition (Ca + J), O09 Oo, i; 4 tends to be hydroscopic and, therefore, difficult to use. However, it is resistant to melt.
    Example 4. Calcium sulfide is mixed with alumina in a molar ratio of 1: 1. The resulting material having the composition (Аf + Ca) g SQ,, 4 Oz4e exposed to molten metal.
    Example 5. Calcium sulfide is mixed with yttria in a molar ratio of 1: 1. The resulting material having a composition of (Ca + J), 5 °, 14 Off, 45 J is most preferable from the point of view of ease of preparation and resistance to the effect of molten metal.
     The tests are carried out by contacting the fire with a titanium-aluminum alloy at 1550 ° C (70 ° C higher, melting point) for half an hour to one hour in argon atmosphere.
    权利要求:
    Claims (1)
    [1]
    REFRACTORY MATERIAL, resistant to the effects of melts based on titanium and aluminum, containing sulfide, characterized in that in order to reduce the interaction with titanium-aluminum melt, it contains calcium sulfide and additionally yttrium or aluminum oxide, the material has the following formula M a S b ° c where 0 is oxygen; S is sulfur; M - calcium and yttrium or aluminum, with a = 0.41-0.45, b = 0.02-0.24, c = 0.31-0.57.
    S ω s
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    同族专利:
    公开号 | 公开日
    US4244743A|1981-01-13|
    DE3015639C2|1989-08-03|
    FR2455010B1|1982-11-19|
    JPH0122221B2|1989-04-25|
    GB2047676A|1980-12-03|
    FR2455010A1|1980-11-21|
    GB2047676B|1983-02-02|
    DE3015639A1|1980-11-06|
    JPS55149167A|1980-11-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3011233A|1959-09-04|1961-12-05|Gen Electric|Refractory sulfide casting cores|
    US3180632A|1961-10-02|1965-04-27|North American Aviation Inc|Coated crucible and crucible and mold coating method|
    GB924976A|1961-10-12|1963-05-01|Union Carbide Corp|Refractory monosulphides of lanthanides and actinides|
    FR1474725A|1965-06-14|1967-03-31|Centre Nat Rech Scient|Process for the preparation of solid solutions of single and mixed sulphides of transition metals and metal oxysulphides; new solid solutions of sulphides and oxysulphides obtained by this process|
    US3537949A|1966-10-24|1970-11-03|Rem Metals Corp|Investment shell molds for the high integrity precision casting of reactive and refractory metals,and methods for their manufacture|
    US3490929A|1966-11-14|1970-01-20|Dow Chemical Co|Process for preparing refractory metal oxide casts|
    US3413232A|1967-06-01|1968-11-26|Zyrotron Ind Inc|Heat-reaction product comprising barium or molybdenum sulfides, metal phosphates andmetal dioxides|
    US4014706A|1972-05-12|1977-03-29|Research Enterprises Corporation|Solid solution ceramic materials|
    GB1434370A|1973-08-01|1976-05-05|Zirconal Processes Ltd|Ceramic sheel mould|
    US4035819A|1973-10-19|1977-07-12|Matsushita Electric Industrial Co., Ltd.|Method of making a zinc sulphide ceramic body and a zinc sulphide ceramic body made thereby|
    US4040845A|1976-03-04|1977-08-09|The Garrett Corporation|Ceramic composition and crucibles and molds formed therefrom|
    US4135030A|1977-12-23|1979-01-16|United Technologies Corporation|Tungsten impregnated casting mold|US4951735A|1986-01-02|1990-08-28|United Technologies Corporation|Melting and casting of beta titanium alloys|
    DE68915861T2|1988-06-13|1995-01-19|Howmet Corp|Molded shell for investment casting and process for producing the same.|
    US6123791A|1998-07-29|2000-09-26|Applied Materials, Inc.|Ceramic composition for an apparatus and method for processing a substrate|
    US6466881B1|1999-04-22|2002-10-15|Applied Materials Inc.|Method for monitoring the quality of a protective coating in a reactor chamber|
    US6391146B1|2000-04-11|2002-05-21|Applied Materials, Inc.|Erosion resistant gas energizer|
    US6494250B1|2001-05-14|2002-12-17|Howmet Research Corporation|Impregnated alumina-based core and method|
    US6942929B2|2002-01-08|2005-09-13|Nianci Han|Process chamber having component with yttrium-aluminum coating|
    US7371467B2|2002-01-08|2008-05-13|Applied Materials, Inc.|Process chamber component having electroplated yttrium containing coating|
    US7297247B2|2003-05-06|2007-11-20|Applied Materials, Inc.|Electroformed sputtering target|
    JP2007069247A|2005-09-07|2007-03-22|Ishikawajima Harima Heavy Ind Co Ltd|Mold for titanium aluminum alloy|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/032,197|US4244743A|1979-04-23|1979-04-23|Sulfur containing refractory for resisting reactive molten metals|
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