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    Slip casting method
    3.
    发明公开
    Slip casting method 失效
    SLIP铸造方法

    公开(公告)号：EP0459324A3

    公开(公告)日：1992-03-11

    申请号：EP91108489.5

    申请日：1991-05-24

    申请人： HITACHI, LTD.

    发明人： Sakai, Junji ,  Sobue, Masahisa ,  Yasutomi, Yoshiyuki

    IPC分类号： B28B7/34 ,  B28B1/26

    CPC分类号： B28B1/262 ,  B28B7/342

    摘要： In a casting method for manufacturing various types of ceramics products having an intricate configuration and a partly diversified wall thickness, such as compressor scroll blade and a screw rotor, by casting a slurry composed of ceramics, etc. in a mold (3, 7, 6), the improvement comprising an arrangement wherein the mold is partly or entirely formed of a flexible gel material (6) which can be melted by heating at a temperature lower than the boiling point of the dispersion medium, whereby the stresses generated when molding the product can be mitigated. Thus, the molding of a product having a high level of dimensional accuracy can be carried out with ease.

    Continuous hot-dip plating apparatus
    4.
    发明公开
    Continuous hot-dip plating apparatus 失效
    Kontinuierlich arbeitende Heisstauch-Plattierungsvorrichtung。

    公开(公告)号：EP0346855A2

    公开(公告)日：1989-12-20

    申请号：EP89110729.4

    申请日：1989-06-13

    申请人： HITACHI, LTD.

    发明人： Nakagawa, Mitsuo ,  Okoshi, Hitoshi ,  Shitamura, Osamu ,  Numata, Hiroki ,  Taguchi, Mituo ,  Yamaguchi, Teruo ,  Kani, Yasunobu ,  Kamata, Toshio ,  Ookouchi, Takahiko ,  Sakai, Junji

    IPC分类号： C23C2/00 ,  F16C33/04

    CPC分类号： F16C33/043 ,  C23C2/003 ,  F16C13/02 ,  F16C33/26 ,  Y10S384/902

    摘要： A continuous hot-dip plating apparatus comprises a roll as­sembly (14, 15) having superior resistance to erosion caused by the hot melt (16) of the plating metal, as well as high re­sistance to wear of the sliding portions of roll shafts (18) and bearings (19) which are used in the hot melt (16) of the plating metal. A ceramics is mounted on the sliding portions of the metallic roll shafts (18) making sliding contact with the metallic bearings (19) and/or on the sliding surfaces of the metallic bearings (19) which slidingly contact the sliding portions of the metallic roll shafts (18). The material of the ceramics serving as a sliding member is selected taking into account the wettability to the hot melt (16) of the plating metal. At least one of each, the sliding portion of the metal roll shaft (18) and the sliding surface of the associated bearing (19) is provided with a ceramic material which ex­hibits a large wettability to the hot melt (16) of the plating metal.

    摘要翻译： 一种连续的热浸镀设备包括具有优异的抵抗由电镀金属的热熔体（16）引起的侵蚀的辊组件（14,15），以及辊轴（18）的滑动部分的高耐磨性 ）和用于电镀金属的热熔体（16）中的轴承（19）。 在与金属轴承（19）滑动接触的金属辊轴（18）的滑动部分和/或金属轴承（19）的滑动接触金属辊的滑动部分的滑动面上安装陶瓷 轴（18）。 考虑到对电镀金属的热熔体（16）的润湿性，选择用作滑动构件的陶瓷的材料。 金属辊轴（18）的滑动部分和相关轴承（19）的滑动表面中的至少一个设置有陶瓷材料，其对镀金属的热熔体（16）表现出较大的润湿性 。

    A method for producing a ceramic article
    5.
    发明公开
    A method for producing a ceramic article 失效
    韦尔法罕zur Herstellung eines keramischen Gegenstandes。

    公开(公告)号：EP0140682A1

    公开(公告)日：1985-05-08

    申请号：EP84307379.2

    申请日：1984-10-26

    申请人： HITACHI, LTD.

    发明人： Sakai, Junji ,  Kuniya, Keiichi ,  Sobue, Masahisa ,  Nakazawa, Tetsuo ,  Sasaki, Toshimi

    IPC分类号： B28B1/26

    CPC分类号： B28B1/261 ,  B28B1/26 ,  C04B35/565

    摘要： © A ceramic article having a complicated configuration and non-uniform in wall thickness such as a turbocharger rotor for automobiles, a rotor for gas turbine engines and the like is produced by casting a ceramic-containing slurry 1 into a mold 2,3. Problems caused by non-uniform absorption of the liquid in the slurry are avoided by effecting orientated solidification of the slurry in the mold. Part 2 of the mold is absorptive, while part 3 is non-absorptive.

    摘要翻译： 通过将含陶瓷的浆料1浇铸到模具2,3中，制造具有复杂构造和壁厚不均匀的陶瓷制品，例如用于汽车的涡轮增压器转子，用于燃气涡轮发动机的转子等。 通过在模具中实现浆料的取向固化来避免浆料中液体的不均匀吸收。 模具的第2部分是吸收性的，而第3部分是不吸收的。

    Continuous hot dipping apparatus and slide bearing structure therefor
    6.
    发明公开
    Continuous hot dipping apparatus and slide bearing structure therefor 失效
    连续热浸设备及其滑动轴承结构

    公开(公告)号：EP0555836A3

    公开(公告)日：1995-02-22

    申请号：EP93102085.3

    申请日：1993-02-10

    申请人： HITACHI, LTD.

    发明人： Ookouchi, Takahiko ,  Kawahigashi, Tamihito ,  Seki, Masatoshi ,  Sakai, Junji ,  Okoshi, Hitoshi ,  Nakayama, Yoshitaka

    IPC分类号： C23C2/00

    CPC分类号： C23C2/003 ,  Y10S384/911

    摘要： A continuous hot dipping apparatus which comprises a slide bearing structure of a bearing and a roll shaft which is of a combination of a ceramic material and a solid lubricant material, and which has good wear resistance and long term durability. A heat resistant steel is provided, which is used in a molten metal of hot dipping and which essentially consists of 0.15-0.30% C, not more than 20% Si, not more than 2% Mn, 20-30% Cr, 10-20% Ni and not less than 50% Fe.

    摘要翻译： 一种连续热浸设备，其包括轴承的滑动轴承结构和陶瓷材料和固体润滑剂材料的组合的辊轴，并且具有良好的耐磨性和长期耐久性。 提供耐热钢，其用于热浸金属熔融金属，其基本上由0.15-0.30％C，不超过20％的Si，不超过2％的Mn，20-30％的Cr，10- 20％Ni和不小于50％Fe。

    High strength composite ceramic structure and process for producing the same
    7.
    发明公开
    High strength composite ceramic structure and process for producing the same 失效
    KeramischesVerbundgefügehoher Festigkeit und Verfahren zu seiner Herstellung。

    公开(公告)号：EP0504441A1

    公开(公告)日：1992-09-23

    申请号：EP91104152.3

    申请日：1991-03-18

    申请人： HITACHI, LTD.

    发明人： Yasutomi, Yoshiyuki ,  Watahiki, Seiji ,  Sakai, Junji ,  Chiba, Akio ,  Miyoshi, Tadahiko ,  Sobue, Masahisa

    IPC分类号： C04B35/58 ,  C04B35/80 ,  C04B35/56 ,  C04B38/00 ,  C04B38/06 ,  C04B41/87 ,  C23C16/34

    CPC分类号： C04B35/565 ,  C04B35/58 ,  C04B35/58014 ,  C04B35/58028 ,  C04B35/581 ,  C04B35/591 ,  C04B35/63408 ,  C04B35/63416 ,  C04B35/645 ,  C04B35/80 ,  C04B38/00 ,  C23C16/345 ,  C04B35/628 ,  C04B38/0051 ,  C04B38/0074

    摘要： The present invention provides a composite ceramic structure of sintered ceramics having a porosity of 5 to 40 % by volume and, if necessary, a maximum pore size of 10 µ m or less comprising particles selected from the group consisting of grains and whiskers of at least one inorganic compound AB selected from the group consisting of carbides, nitrides, and oxides which are composed of an element A and an element B, where a difference in electronegativity between the element A and the element B is not higher than 1.7; or particles selected from the group consisting of grains and whiskers of an inorganic compound, between the components of which a difference in electronegativity is higher than 1.7, and having layers of the inorganic compound AB formed on the surfaces of said particles; where said particles are bonded one another with silicon nitride particles having an average particle size not more than 0.2 µ m. The composite ceramic structure is produced by sintering a shape composed of particles selected from the group consisting of grains and whiskers of at least one of the inorganic compound AB; or a shape composed of particles selected from the group consisting of grains and whiskers of an inorganic compound, between the components of which a difference in electronegativity is higher than 1.7, and having layers of the inorganic compound AB formed on the surfaces of said particles; in a gaseous atmosphere containing silicon and nitrogen to grow silicon nitride particles having an average particle size not higher than 0.2 µ m on the surfaces of said inorganic compound particles, thereby bonding said inorganic compound particles one another. A ceramic sintered shape highly accurate in dimension having a surface configuration which is a replica of the surface contour of a mold as a ceramic mechanical part of precision is also proveded.

    摘要翻译： 本发明提供一种烧结陶瓷的复合陶瓷结构体，其特征在于，其孔隙率为5〜40体积％，如果需要的话，最大孔径为10μm以下，包含至少包含至少 选自由元素A和元素B组成的组中的碳化物，氮化物和氧化物的一种无机化合物AB，其中元素A和元素B之间的电负性差异不大于1.7; 或选自由无机化合物的晶粒和晶须组成的组的颗粒，其电负性差异高于1.7的组分，并且在所述颗粒的表面上形成无机化合物AB的层; 其中所述颗粒用平均粒径不大于0.2μm的氮化硅颗粒彼此粘合。 复合陶瓷结构体是通过烧结由选自由无机化合物AB中的至少一种的晶粒和晶须组成的组的颗粒构成的形状而制造的; 或者由在无机化合物的晶粒和晶须中选出的粒子构成的形状，电负性差异高于1.7的成分，在所述粒子的表面形成有无机化合物AB的层; 在含有硅和氮的气体气氛中，在所述无机化合物颗粒的表面上生长平均粒径不大于0.2μm的氮化硅颗粒，从而将所述无机化合物颗粒彼此粘合。 还证明了具有作为精密的陶瓷机械部件的模具的表面轮廓的复制品的表面形状的尺寸高度精确的陶瓷烧结形状。

    Continuous hot-dip plating apparatus
    8.
    发明公开
    Continuous hot-dip plating apparatus 失效
    连续热镀敷设备

    公开(公告)号：EP0346855A3

    公开(公告)日：1990-02-14

    申请号：EP89110729.4

    申请日：1989-06-13

    申请人： HITACHI, LTD.

    发明人： Nakagawa, Mitsuo ,  Okoshi, Hitoshi ,  Shitamura, Osamu ,  Numata, Hiroki ,  Taguchi, Mituo ,  Yamaguchi, Teruo ,  Kani, Yasunobu ,  Kamata, Toshio ,  Ookouchi, Takahiko ,  Sakai, Junji

    IPC分类号： C23C2/00 ,  F16C33/04

    CPC分类号： F16C33/043 ,  C23C2/003 ,  F16C13/02 ,  F16C33/26 ,  Y10S384/902

    摘要： A continuous hot-dip plating apparatus comprises a roll as­sembly (14, 15) having superior resistance to erosion caused by the hot melt (16) of the plating metal, as well as high re­sistance to wear of the sliding portions of roll shafts (18) and bearings (19) which are used in the hot melt (16) of the plating metal. A ceramics is mounted on the sliding portions of the metallic roll shafts (18) making sliding contact with the metallic bearings (19) and/or on the sliding surfaces of the metallic bearings (19) which slidingly contact the sliding portions of the metallic roll shafts (18). The material of the ceramics serving as a sliding member is selected taking into account the wettability to the hot melt (16) of the plating metal. At least one of each, the sliding portion of the metal roll shaft (18) and the sliding surface of the associated bearing (19) is provided with a ceramic material which ex­hibits a large wettability to the hot melt (16) of the plating metal.