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    Refractory protective blocks and protective wall structure of boiler using same
    2.
    发明授权
    Refractory protective blocks and protective wall structure of boiler using same 失效
    锅炉的耐火保护块和保护墙结构采用相同的

    公开(公告)号：US5845610A

    公开(公告)日：1998-12-08

    申请号：US705094

    申请日：1996-08-29

    申请人： Tokuaki Hatta ,  Hiromi Nakashima ,  Shigeru Imamura ,  Arito Mizobe ,  Shigeki Ishimatsu ,  Akihiro Tachikawa

    发明人： Tokuaki Hatta ,  Hiromi Nakashima ,  Shigeru Imamura ,  Arito Mizobe ,  Shigeki Ishimatsu ,  Akihiro Tachikawa

    IPC分类号： F22B37/10 ,  F23M5/02 ,  F22B37/24

    CPC分类号： F22B37/108 ,  F23M5/02 ,  Y10S122/13

    摘要： A refractory protective block protects heat exchange means connecting tubes to fins. The refractory protective block has an inside complementary shape corresponding to the surface shape of the heat exchange means and the refractory protective block is provided with recesses into which projections formed on the tubes are fitted and received. A pair of projections formed on the two adjacent tubes in the heat exchange means are arranged so as to confront each other. The refractory protective block has a high durability which does not break even when heat exchange means expand more than the refractory block at the time of the repetition of heating and cooling and which enable the dispersion of strain at the time of the repetition of expansion and contraction.

    摘要翻译： 耐火保护块保护将管连接到翅片的热交换装置。 耐火保护块具有对应于热交换装置的表面形状的内部互补形状，并且耐火保护块设置有凹部，其中形成在管上的突起被安装和接收。 在热交换装置中形成在两个相邻管上的一对突起被布置成彼此面对。 耐火保护块具有高耐久性，即使当热重复加热和冷却时热交换装置比耐火块膨胀时也不会破裂，并且能够在重复膨胀和收缩时使应变分散 。

    Process for producing silicon carbide sintered product
    3.
    发明授权
    Process for producing silicon carbide sintered product 失效
    碳化硅烧结体的制造方法

    公开(公告)号：US4737327A

    公开(公告)日：1988-04-12

    申请号：US941853

    申请日：1986-12-15

    申请人： Tokuaki Hatta ,  Hiroshi Onda

    发明人： Tokuaki Hatta ,  Hiroshi Onda

    IPC分类号： C04B35/573 ,  C04B35/56

    CPC分类号： C04B35/573

    摘要： A process for producing a silicon carbide sintered product, particularly, large-shaped silicon carbide sintered product by reaction sintering. Siliciding reaction can be carried out completely in a short period of time by adding an organic silicon polymer whose skelton is composed of silicon and carbon to the starting sintering material and using the same for the control of the reaction rate.

    摘要翻译： 一种通过反应烧结制造碳化硅烧结产品，特别是大型碳化硅烧结产品的方法。 通过向起始烧结材料中加入由硅和碳组成的有机硅聚合物并将其用于控制​​反应速率，可以在短时间内完全进行硅化反应。

    Silica bricks and method for manufacturing silica bricks
    6.
    发明授权
    Silica bricks and method for manufacturing silica bricks 失效
    二氧化硅砖和二氧化硅砖的制造方法

    公开(公告)号：US4183761A

    公开(公告)日：1980-01-15

    申请号：US934128

    申请日：1978-08-16

    申请人： Yoshiaki Hoshino ,  Tokuaki Hatta ,  Masahiro Sakai

    发明人： Yoshiaki Hoshino ,  Tokuaki Hatta ,  Masahiro Sakai

    IPC分类号： C04B35/14 ,  C10B29/02 ,  C04B35/56 ,  C04B35/58

    CPC分类号： C04B35/14 ,  C10B29/02

    摘要： Present invention provides silica bricks of improved thermal conductivity and low gas permeability and method for manufacturing such silica bricks. The manufacturing method is substantially characterized in that siliceous raw mixture includes 0.5 to 10 percent by weight of nitride or carbide of metallic silicon and that, in the firing process from 1200.degree. to 1400.degree. C., the temperature elevation speed and the oxygen concentration at the exhaust port of the firing furnace take specific rates respectively different from the corresponding rates of conventional firing. In the above firing process, the nitride or carbide of metallic silicon is oxidized to form SiO.sub.2 and this SiO.sub.2 fills in pores of the matrix whereby silica bricks produced by the method of this invention can have high thermal conductivity and low gas permeability.

    摘要翻译： 本发明提供了具有改进的导热性和低气体渗透性的二氧化硅砖以及用于制造这种二氧化硅砖的方法。 制造方法的特征在于，硅质原料混合物包含0.5-10重量％的氮化物或金属硅的碳化物，并且在1200℃至1400℃的煅烧过程中，升温速度和氧浓度 燃烧炉的排气口分别具有不同于常规燃烧的相应速率的特定速率。 在上述烧制工艺中，金属硅的氮化物或碳化物被氧化形成SiO 2，并且该SiO 2填充在基体的孔中，由此通过本发明的方法生产的硅砖可以具有高的导热性和低的透气性。

    SiC-Si.sub.3 N.sub.4 Composite system for special heat-resisting ceramic materials and its fabrication method
    8.
    发明授权
    SiC-Si.sub.3 N.sub.4 Composite system for special heat-resisting ceramic materials and its fabrication method 失效
    SiC-Si3N4特殊耐热陶瓷复合材料及其制造方法

    公开(公告)号：US4335217A

    公开(公告)日：1982-06-15

    申请号：US210647

    申请日：1980-11-26

    申请人： Tokuaki Hatta ,  Haruyuki Ueno ,  Yuji Katsura ,  Kazushige Fukuda ,  Hiroshi Kubota

    发明人： Tokuaki Hatta ,  Haruyuki Ueno ,  Yuji Katsura ,  Kazushige Fukuda ,  Hiroshi Kubota

    IPC分类号： C04B35/565 ,  C04B35/571 ,  C04B35/584 ,  C04B35/591 ,  C04B35/56 ,  C04B35/58

    CPC分类号： C04B35/591

    摘要： A SiC-Si.sub.3 N.sub.4 composite system for special heat-resisting ceramic materials which is fabricated by firing in a nitriding gas atmosphere a green compact prepared from and composed of, as starting materials, silicon powder and an organic silicon polymer containing carbon and silicon atoms as the major skeletal components, whereby said composite system, as a final fired compact has an interwoven texture of SiC and Si.sub.3 N.sub.4 with sufficient micro gaps to absorb thermal stresses, wherein the quantitative ratio by weight of SiC to Si.sub.3 N.sub.4 in said composite system being in the range of 5%-20%:95%-80%.

    摘要翻译： 一种用于特殊耐热陶瓷材料的SiC-Si 3 N 4复合体系，其通过在氮化气体气氛中烧制由作为原料的硅粉末和含有碳和硅原子的有机硅聚合物制成并由其构成的生坯 主要骨架组分，其中所述复合体系作为最终的烧结体具有SiC和具有足够微小间隙的Si 3 N 4交织织构以吸收热应力，其中所述复合体系中SiC与Si 3 N 4的重量比在以下范围内 5％-20％：95％-80％。