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    Method of impregnating porous refractory bodies with inorganic chromium compound
    1.
    发明授权
    Method of impregnating porous refractory bodies with inorganic chromium compound 失效
    用无机铬化合物浸渍多孔耐火材料体的方法

    公开(公告)号：US3789096A

    公开(公告)日：1974-01-29

    申请号：US3789096D

    申请日：1967-12-28

    Applicant: KAMAN SCIENCES CORP

    Inventor： CHURCH P ,  KNUTSON O

    IPC: B23P15/28 ,  B24D3/14 ,  C04B41/50 ,  C04B41/85 ,  C04B41/87 ,  C09K3/14 ,  F02B75/02 ,  C04B41/24 ,  C04B41/06

    CPC classification number: C04B41/5033 ,  C04B41/009 ,  C04B41/5025 ,  C04B41/85 ,  C04B41/87 ,  C09K3/1436 ,  F02B2075/027 ,  C04B41/4505 ,  C04B41/4578 ,  C04B41/5092 ,  C04B35/00

    Abstract: A new ceramic treatment process and product and, more particularly, a process for forming and treating and shaping and treating of porous skeletal bodies to produce hardened dimensionally stable end products at relatively low temperature and the resulting materials produced thereby which comprises the steps of treating a porous skeletal body by impregnating the interstices of the porous body with a comound of a metal capable of being converted to an oxide in situ at relatively low temperatures, heating the body so impregnated at temperature well below normal vitrification to a temperature of at least 600*F. and for a period of time sufficient to convert the compound impregnated therein to an oxide and repeating the impregnation and heating steps until the desired degree of hardness is obtained.

    Abstract translation: 更具体地说，一种新的陶瓷处理方法和产品，更具体地说，涉及一种用于形成和处理和成形和处理多孔骨架体以在较低温度下生产硬化尺寸稳定的最终产品的方法，由此生产的所得材料包括以下步骤： 通过用相对较低温度原位转化为氧化物的金属的化合物浸渍多孔体的间隙，将其浸渍在远低于正常玻璃化的温度至高于600℃的温度下加热的多孔骨架体 并且足以将其中浸渍的化合物转化为氧化物并重复浸渍和加热步骤的时间直到获得所需的硬度。

    Ceramic treating process and product produced thereby
    3.
    发明授权
    Ceramic treating process and product produced thereby 失效
    陶瓷处理工艺及生产的产品

    公开(公告)号：US3734767A

    公开(公告)日：1973-05-22

    申请号：US3734767D

    申请日：1970-06-18

    Applicant: KAMAN SCIENCES CORP

    Inventor： CHURCH P ,  KNUTSON O

    IPC: C04B35/01 ,  C04B41/50 ,  C04B41/87 ,  C04B41/24

    CPC classification number: C04B41/009 ,  C04B35/01 ,  C04B41/5033 ,  C04B41/87 ,  Y10T428/2971 ,  C04B41/455 ,  C04B35/00

    Abstract: A NEW CERAMIC TREATMENT PROCESS ANDPRODUCT AND, MORE PARTICULARY, A PROCESS FOR TREATING UNDERFIRED POROUS PARTIALLY VITRIFIED RELATIVELY SOFT MACHINABLE REFRACTORY CERAMIC MATERIALS TO PRODUCE HARDENED DIMENSIONALLY STABLE END PRODUCTS AT RELATIVELY LOW TEMPERATURES AND THE CERAMIC MATERIALS PRODUCED THEREBY WHICH ARE SUITABLE FOR APPLICATION AS BEARINGS FOR UNDERSEA SUBMERGENCE, LOW TEMPERATURE BEARINGS FOR ARCTIC VEHICULAR AND MACHINERY APPLICATIONS, PRECISION BEARINGS FOR SPACE USE AND LIQUID METAL LUBRICATED SYSTEMS. THE SOFT CERAMICS CAN BE MACHINED AND SHAPED IN THE SOFT STATE AND HARDENED BY THE PROCESS OF THIS INVENTION AT TEMPERATURES WELL BELOW NORMAL VITRIFICATION TEMPERATURES WITH VIRTUALLY NO CHAGE IN DIMENSIONS FROM THE MACHINED UNTREATED CERAMIC TO THE TREATED AND HARDENED END PRODUCT. OTHER PRODUCTS PRODUCED BY THE PROCESS OF THIS INVENTION PRODUCE ARTICLES HAVING A VERY DENSE SURFACE CAPABLE OF TAKING A HIGH POLISH AND OTHER PRODUCTS HAVE RESULTED IN AN ABRASIVE OR POLISHING STONE HAVING SUPERIOR QUALITIES TO THOSE OF THE ARKANSAS STONES IN RESPECT TO BOTH SPEED OF METAL REMOVAL AND DEGREE OF POLISHING OR SHARPENING. IN ADDITION, COARSER OR FINER GRADES ARE OBTAINABLE COMPARED TO A SINGLE GRADE OF ARKANSAS STONE. OTHER PRODUCTS PRODUCED BY THIS PROCESS HAVE NEGATIVE TEMPERATURES COEFFICIENTS BECOMING VERY GOOD ELECTRICAL AND HEAT CONDUCTORS AT HIGH TEMPERATURES.

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