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    • 4. 发明申请
    • Method and Device For Siliconization of Carbon-Containing Materials
    • 含碳材料硅化的方法和装置
    • US20090149308A1
    • 2009-06-11
    • US12212452
    • 2008-09-17
    • Andreas KIENZLEJohann DaimerRudi BeckOtto Mederle
    • Andreas KIENZLEJohann DaimerRudi BeckOtto Mederle
    • C04B35/52B01J8/04
    • C04B35/64C04B35/573C04B2235/40C04B2235/402C04B2235/404C04B2235/405C04B2235/6565C04B2235/6581C04B2235/661C04B2235/662F27B9/047F27B9/2407F27B9/36F27D3/02F27D3/026
    • Method for treatment of workpieces of porous carbon material with liquid silicon with the formation of silicon carbide, comprising the following steps: preheating of porous carbon workpieces under an inert gas to a selected operating temperature TB1, delivery of liquid silicon to the porous carbon workpieces at an operating pressure pB2 and an operating temperature TB2 and impregnation of the porous carbon workpieces with liquid silicon, reaction of the liquid silicon in the workpiece at a temperature TB3 with formation of silicon carbide from carbon and silicon, gassing of the workpieces with inert gas, and cooling from the operating temperature TB3 to a conditioning temperature Tk, cooling of workpieces to room temperature, in step c the delivery of silicon and transport of the workpieces taking place over preferably cylindrical rolls which are porous at least in the exterior region and which are pivoted, and their speed of rotation determining the residence time for the delivery of silicon in step c, and the temperature TB3 being greater than or equal to the temperature TB2, and the workpieces for process step d no longer being in contact with liquid silicon outside the workpieces.
    • 用液态硅处理碳化硅的多孔碳材料工件的方法,包括以下步骤:将惰性气体下的多孔碳工件预热到选定的工作温度TB1,将液态硅输送到多孔碳工件上 操作压力pB2和操作温度TB2,并且用液态硅浸渍多孔碳工件,在温度TB3下工件中的液态硅与碳和硅形成碳化硅的反应,用惰性气体气化工件, 并从工作温度TB3到调节温度Tk的冷却,工件冷却至室温,步骤c中硅的输送和工件的运输,优选至少在外部区域是多孔的圆柱形辊, 枢转,并且其旋转速度决定了运送的停留时间 步骤c中的硅,温度TB3大于或等于温度TB2,并且处理步骤d的工件不再与工件外部的液态硅接触。
    • 6. 发明申请
    • Gas-tight electrode for carbothermic reduction furnace
    • 用于碳热还原炉的气密电极
    • US20050254544A1
    • 2005-11-17
    • US11123774
    • 2005-05-05
    • Johann Daimer
    • Johann Daimer
    • C22B4/02C22B21/02H05B7/00H05B7/07H05B7/085H05H1/00
    • C22B21/02C22B4/02H05B7/07
    • A graphite electrode for an electrothermic reduction furnace in which aluminum is produced by carbothermic reduction of alumina is rendered substantially gas-impermeable. The graphite electrode is consumed during furnace operation and electrode columns connected by graphite pins are fed continuously fed in from the top into the furnace. The coating of the electrode withstands a temperature of up to 300° C. and more over a period of several hours without oxidation. Since the coating enters the furnace compartment at least partially, it is configured so that it will not contaminate the hot melt. That is, the chemistry of the coating materials is similar to 1o the ingredients of the overall reaction or, at a minimum, the amount of foreign elements is very low. The coating is provided so that it does not increase the electrical contact resistance at the connection between the electrode columns and the electrode holding clamps. Where the electrode inlet area is cooled by water, the coating is insoluble in water.
    • 通过氧化铝的碳热还原法制造铝的电热还原炉用石墨电极基本上不透气。 在炉操作期间消耗石墨电极,并且通过石墨引脚连接的电极柱从顶部连续地进料到炉中。 电极的涂层耐受高达300℃的温度,并在几个小时的时间内耐受氧化。 由于涂层至少部分地进入炉室,因此其被构造成不会污染热熔体。 也就是说,涂料的化学性质与总反应的成分相似,或至少外来元素的量非常低。 提供涂层,使得其不增加电极柱和电极夹持夹具之间的连接处的电接触电阻。 在电极入口区域被水冷却的地方,涂层不溶于水。
    • 7. 发明授权
    • Glass sealant containing lead borate glass and fillers of mullite and
cordierite
    • 玻璃密封胶含有铅玻璃和填充物
    • US5145803A
    • 1992-09-08
    • US600510
    • 1990-10-22
    • Johann DaimerHartmut Paschke
    • Johann DaimerHartmut Paschke
    • C04B37/00C03C8/10C03C8/24
    • C03C8/245
    • A glass sealant comprises a mixture of about 70-90% of a solder glass powder of a low-melting lead-borate glass with a transformation temperature of 330.degree. C. or lower, 1-20% by weight of cordierite powder, and 1-25% by weight of mullite powder, with the combined content of cordierite and mullite powder being from about 10-30%. The lead-borate glass comprises from about 82-88% by weight of PbO, 12-17% by weight of B.sub.2 O.sub.3, 0-1% by weight of SiO.sub.2, and 0-1% by weight of Al.sub.2 O.sub.3. Both the cordierite and mullite powder are preferably synthetically produced to reduce the .alpha.-radiation. The synthetically produced cordierite powder preferably still contains up to about 9% by weight of a non-crystalline vitreous phase. The grain size of the powders is preferably under 100 microns. This glass sealant has well-balanced properties relative to thermal expansion, melting temperature, dielectric constant, loss angle, mechanical strength, thermal shock resistance, and chemical resistance. It is particularly suitable as ceramic dual-line package solder (CERDIP) for sealing of aluminum oxide housings for integrated circuits.
    • 玻璃密封剂包括约70-90%的低熔点硼酸铅玻璃的焊料玻璃粉末与转化温度为330℃或更低,1-20重量%的堇青石粉末和1 -25重量%的莫来石粉末,堇青石和莫来石粉末的组合含量为约10-30%。 铅硼酸盐玻璃包含约82-88重量%的PbO,12-17重量%的B 2 O 3,0-1重量%的SiO 2和0-1重量%的Al 2 O 3。 优选合成制备堇青石和莫来石粉末以减少α-辐射。 合成生产的堇青石粉末优选还含有至多约9重量%的非结晶玻璃质相。 粉末的粒径优选在100微米以下。 该玻璃密封剂相对于热膨胀,熔融温度,介电常数,损耗角,机械强度,耐热冲击性和耐化学性而具有良好的平衡性。 特别适用于用于集成电路的氧化铝壳体的密封的陶瓷双线包装焊料(CERDIP)。
    • 9. 发明授权
    • Method for using fracture resistant electrodes in a carbothermic reduction furnace
    • 在碳热还原炉中使用断裂电极的方法
    • US07736413B2
    • 2010-06-15
    • US12233216
    • 2008-09-18
    • Johann Daimer
    • Johann Daimer
    • C22B4/08C25B11/12
    • H05B7/085C22B4/08C22B5/10C22B21/02Y02P10/262
    • Graphite electrodes for the production of aluminum by carbothermic reduction of alumina are either submerged in the molten bath in the low temperature compartment or they are horizontally arranged in the side walls of the high temperature compartment. The electrodes are manufactured by using a mixture of coke particles covering the complete particle size range between 25 μm to 3 mm and by using an intensive mixer to effectively wet all coke particles with pitch. The electrodes have a flexural strength of at least 20 N/mm2. By using a complete range (continuum) of particle sizes in conjunction with an intensive mixer, the geometric packing of the particles is significantly improved, hence the material density is increased and thus a higher mechanical strength as well as improved electrical conductivity in comparison to conventional graphite electrodes is achieved.
    • 通过碳氧化还原氧化铝生产铝的石墨电极被浸没在低温隔室中的熔池中,或者水平地布置在高温隔室的侧壁中。 通过使用覆盖25μm至3mm之间的完整粒度范围的焦炭颗粒的混合物并通过使用强化混合器来有效地润湿所有具有沥青的焦炭颗粒来制造电极。 电极的弯曲强度至少为20N / mm2。 通过与浓缩混合器结合使用粒度的完整范围(连续体),颗粒的几何填料显着提高,因此与常规的相比,材料密度增加,因此具有更高的机械强度以及改善的导电性 实现石墨电极。