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18 条记录 (耗时 0.015 秒)

    Salt bath for the currentless production of wear resistant boride layers
    2.
    发明授权
    Salt bath for the currentless production of wear resistant boride layers 失效
    盐浴用于无止境生产耐磨硼化物层

    公开(公告)号：US4536224A

    公开(公告)日：1985-08-20

    申请号：US630302

    申请日：1984-07-12

    申请人： Hans-Hermann Beyer ,  Ulrich Baudis ,  Peter Biberbach ,  Wolfgang Weber

    发明人： Hans-Hermann Beyer ,  Ulrich Baudis ,  Peter Biberbach ,  Wolfgang Weber

    IPC分类号： C23C8/42 ,  C23C8/40 ,  C23C18/02

    CPC分类号： C23C8/40

    摘要： There is described a salt bath based on an alkali and/or alkaline earth metal halide with which there can be produced without the use of current adherent and wear resistant boride coatings on metallic workpieces. This bath contains gaseous boron monofluoride or a compound from which there is formed intermediately boron monofluoride. Advantageous there is used a salt bath containing 30-60% BaCl.sub.2, 10-25% NaCl, 1-20% boron oxide or borate, 10-30% NaF, and 1-15% B.sub.4 C.

    摘要翻译： 描述了基于碱金属和/或碱土金属卤化物的盐浴，其可以在金属工件上不使用目前的粘附和耐磨的硼化物涂层来制备。 该浴含有气态一氟化硼或形成中间一氟化硼的化合物。 使用含有30-60％BaCl 2，10-25％NaCl，1-20％氧化硼或硼酸盐，10-30％NaF和1-15％B 4 C的盐浴。

    Regeneration agent for carburization salt bath
    3.
    发明授权
    Regeneration agent for carburization salt bath 失效
    渗碳盐浴再生剂

    公开(公告)号：US4509993A

    公开(公告)日：1985-04-09

    申请号：US566811

    申请日：1983-12-29

    申请人： Hans-Hermann Beyer ,  Ulrich Baudis ,  Peter Biberbach

    发明人： Hans-Hermann Beyer ,  Ulrich Baudis ,  Peter Biberbach

    IPC分类号： C23C8/44 ,  C08G12/10 ,  C08G12/16 ,  C08G12/32 ,  C23C8/40 ,  C21D1/48

    CPC分类号： C23C8/40

    摘要： It is known to regenerate salt baths for nitriding parts of iron and steel with polymers of organic materials, which polymers, however, could not be used in carburizing salt baths since with them there only are formed slight amounts of carburizing active cyanide, the baths foam, and carbon residues are formed. An excellent regeneration agent for carburizing salt baths is obtained by using polymeric organic compounds of the overall composition [C.sub.6 H.sub.x N.sub.y ].sub.z where x is 3 to 5, y is 5 to 8, and z is 10 to 10,000. These compounds are obtained by reacting formaldehyde with cyanamide and/or dicyandiamide and/or melamine and pyrolytically decomposing the reaction product at 300.degree. to 600.degree. C.

    摘要翻译： 众所周知，用有机材料的聚合物再生盐浴用于铁和铁的部分渗氮，然而，这些聚合物不能用于渗碳盐浴，因为它们只形成少量的渗碳活性氰化物，浴泡沫 ，形成碳残基。 通过使用总组合物[C6HxNy] z的聚合有机化合物，其中x为3至5，y为5至8，z为10至10,000，获得渗透盐浴的优异再生剂。 这些化合物是通过甲醛与氰胺和/或双氰胺和/或三聚氰胺反应并在300℃至600℃热解分解反应产物而得到的。

    Process for removal of sand mold residues from cast parts
    4.
    发明授权
    Process for removal of sand mold residues from cast parts 失效
    从铸件中除去砂模残渣的工艺

    公开(公告)号：US4441930A

    公开(公告)日：1984-04-10

    申请号：US217094

    申请日：1980-12-16

    申请人： Ulrich Baudis ,  Peter Biberbach ,  Wolfgang Weber

    发明人： Ulrich Baudis ,  Peter Biberbach ,  Wolfgang Weber

    IPC分类号： B22D29/00 ,  B22D31/00 ,  C23G1/28 ,  C03C23/00

    CPC分类号： B22D31/002 ,  B22D29/002 ,  C23G1/28

    摘要： For removing and dissolving sand mold residues from cast parts, particularly sand mold residues containing zirconium oxide and titanium oxide, there have previously been used mechanical and electrochemical processes in salt melts. However, these processes are very expensive, attack the surface of the cast pieces or fail to work with sand mold constituents which are difficult to dissolve. These disadvantages are avoided by inserting the cast parts having adhering sand mold residues into a melt of 55 to 97 weight % of alkali metal hydroxide and 3 to 45 weight % of one or more fluorides of an element of the first to third main group of the periodic system of elements and/or zinc at 400.degree. to 900.degree. C. Preferably the salt melt additionally contains a boron-oxygen and/or a boron-fluorine compound.

    摘要翻译： 为了从铸件中除去和溶解砂模残渣，特别是含有氧化锆和氧化钛的砂模残渣，以前已经在盐熔体中使用机械和电化学方法。 然而，这些方法非常昂贵，侵蚀铸件的表面或者不能与难以溶解的砂模成分一起使用。 通过将具有粘附的砂模残余物的铸造件插入55至97重量％的碱金属氢氧化物和3至45重量％的第一至第三主要元素的一种或多种氟化物的熔体中来避免这些缺点 在400〜900℃下元素和/或锌的周期性体系。优选地，盐熔体还含有硼 - 氧和/或硼 - 氟化合物。

    Process for the production of vanadium carbide coatings on iron
    5.
    发明授权
    Process for the production of vanadium carbide coatings on iron 失效
    在铁上生产钒碳涂层的工艺

    公开(公告)号：US4440581A

    公开(公告)日：1984-04-03

    申请号：US278617

    申请日：1981-06-29

    申请人： Ulrich Baudis ,  Peter Biberbach ,  Wolfgang Weber

    发明人： Ulrich Baudis ,  Peter Biberbach ,  Wolfgang Weber

    IPC分类号： C23C10/24 ,  C23C9/10

    CPC分类号： C23C10/24

    摘要： Vanadium carbide layers are produced on iron and iron alloys having a content of at least 0.1 weight % carbon by treating the workpiece at 800.degree. to 1100.degree. C. in a salt bath which contains 1-30 weight % of vanadium or ferrovanadium powder. The salt bath consists of alkaline earth and/or alkali metal halide.

    摘要翻译： 通过在含有1-30重量％的钒或铁钒粉末的盐浴中在800℃至1100℃下处理工件，在含有至少0.1重量％碳含量的铁和铁合金上生产碳化钒层。 盐浴由碱土金属和/或碱金属卤化物组成。

    Precious metal oxide catalyst for water electrolysis
    6.
    发明授权
    Precious metal oxide catalyst for water electrolysis 有权
    贵金属氧化物催化剂用于水电解

    公开(公告)号：US08263290B2

    公开(公告)日：2012-09-11

    申请号：US13150310

    申请日：2011-06-01

    申请人： Marco Lopez ,  Andreas Schleunung ,  Peter Biberbach

    发明人： Marco Lopez ,  Andreas Schleunung ,  Peter Biberbach

    IPC分类号： H01M4/02 ,  H01M4/13 ,  H01M4/36 ,  H01M4/58 ,  H01M4/90 ,  H01M8/00 ,  C25F7/00 ,  B01J20/00 ,  B01J21/00 ,  B01J21/04 ,  B01J23/00

    CPC分类号： B01J23/468 ,  B01J35/1014 ,  B01J35/1019 ,  B01J37/031 ,  C02F1/46109 ,  C02F2001/46142 ,  C02F2201/46115 ,  C25B9/10 ,  C25B11/04 ,  C25B11/0484 ,  H01M4/9016 ,  H01M8/186 ,  H01M2008/1095 ,  Y02E60/366 ,  Y02E60/528

    摘要： The invention is directed to iridium oxide based catalysts for use as anode catalysts in PEM water electrolysis. The claimed composite catalyst materials comprise iridium oxide (IrO2) and optionally ruthenium oxide (RuO2) in combination with a high surface area inorganic oxide (for example TiO2, Al2O3, ZrO2 and mixtures thereof). The inorganic oxide has a BET surface area in the range of 50 to 400 m2/g, a water solubility of lower than 0.15 g/l and is present in a quantity of less than 20 wt. % based on the total weight of the catalyst. The claimed catalyst materials are characterized by a low oxygen overvoltage and long lifetime in water electrolysis. The catalysts are used in electrodes, catalyst-coated membranes and membrane-electrode-assemblies for PEM electrolyzers as well as in regenerative fuel cells (RFC), sensors, and other electrochemical devices.

    摘要翻译： 本发明涉及用于PEM水电解中的阳极催化剂的氧化铱基催化剂。 要求保护的复合催化剂材料包括氧化铱（IrO 2）和任选的氧化钌（RuO 2）与高表面积无机氧化物（例如TiO 2，Al 2 O 3，ZrO 2及其混合物）的组合。 无机氧化物的BET表面积在50〜400m 2 / g的范围内，水溶性低于0.15g / l，且其含量小于20wt。 ％，基于催化剂的总重量。 要求保护的催化剂材料的特征在于低电压过电压和长时间的水电解。 催化剂用于电极，催化剂涂覆的膜和用于PEM电解器以及再生燃料电池（RFC），传感器和其他电化学装置的膜 - 电极组件。

    Platinum/Ruthenium Catalyst for Direct Methanol Fuel Cells
    8.
    发明申请
    Platinum/Ruthenium Catalyst for Direct Methanol Fuel Cells 有权
    用于直接甲醇燃料电池的铂/钌催化剂

    公开(公告)号：US20080214389A1

    公开(公告)日：2008-09-04

    申请号：US11573936

    申请日：2005-08-13

    申请人： Marco Lopez ,  Peter Biberbach

    发明人： Marco Lopez ,  Peter Biberbach

    IPC分类号： B01J21/18 ,  B01J23/42 ,  B01J23/46 ,  H01M4/96

    CPC分类号： H01M4/921

    摘要： The invention relates to a carbon-supported PtRu anode catalyst for direct methanol fuel cells (DMFC) which has a platinum/ruthenium content in the range from 80 to 98 wt. %, preferably in the range from 85 to 98 wt. %, particularly preferably in the range from 85 to 95 wt. % (based on the total weight of the catalyst), on a carbon-based electrically conductive support material and has a mean particle size of less than 3 nm. The catalyst is prepared using a carbon black support material having a specific surface area (measured by the BET method) in the range from 1000 to 2000 m2/g by means of a reduction process using chemical reducing agents with addition of organic acids. Electrodes and membrane-electrode units containing the catalyst according to the invention having a high precious metal loading have an electrode layer thickness of less than 80 μm at a PtRu loading per unit area of the electrode of from 6 to 12 mg of PtRu/cm and lead to improved electric power in direct methanol fuel cells.

    摘要翻译： 本发明涉及一种用于直接甲醇燃料电池（DMFC）的碳负载PtRu阳极催化剂，其具有80至98重量％的铂/钌含量。 ％，优选在85至98重量％的范围内。 ％，特别优选为85〜95重量％。 ％（基于催化剂的总重量），在碳基导电载体材料上，并且具有小于3nm的平均粒度。 使用具有比表面积（通过BET法测量）在1000-2000m 2 / g范围内的碳黑载体材料通过使用化学还原剂的还原方法制备催化剂 加入有机酸。 含有贵金属负载量高的本发明催化剂的电极和膜 - 电极单元在每单位面积电极PtRu负载下具有小于80μm的电极层厚度，PtRu / cm 2为6至12mg， 导致直接甲醇燃料电池的电力提高。