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    Process for the production of parts having a cavity by pressing
    1.
    发明授权
    Process for the production of parts having a cavity by pressing 失效
    通过压力生产空气的部件的生产工艺

    公开(公告)号：US5092023A

    公开(公告)日：1992-03-03

    申请号：US616324

    申请日：1990-11-21

    申请人： Marcel Boncoeur ,  Frederic Valin

    发明人： Marcel Boncoeur ,  Frederic Valin

    IPC分类号： B22C9/10 ,  B22F3/12 ,  B30B11/00

    CPC分类号： B30B11/001 ,  B22F3/1291 ,  Y10S425/044 ,  Y10S425/124 ,  Y10T29/49453 ,  Y10T29/4998 ,  Y10T29/49989

    摘要： A process for the production of, in particular, ceramic parts having a cavity by press molding or pressing sealed sheaths.The core used for defining the cavity and preventing subsequent machining operations is initially more voluminous than the desired cavity and has an adequate ductility to allow partial extrusion during pressing. This avoids often excessive mechanical stresses, which can lead to a bursting or shattering of the densified part when the sheath is removed. This process has, application to the hot isostatic pressing of fragile materials.

    摘要翻译： 特别是通过压制成型或挤压密封护套来制造具有空腔的陶瓷部件的方法。 用于限定空腔并防止后续加工操作的芯体最初比期望的腔体更大，并且具有足够的延展性以允许在压制期间部分挤压。 这避免了经常过度的机械应力，当护套被移除时，这可能导致致密部件的爆裂或破裂。 该方法具有应用于易碎材料的热等静压。

    Process and apparatus for confining the pollution of an isostatic pressing enclosure
    6.
    发明授权
    Process and apparatus for confining the pollution of an isostatic pressing enclosure 失效
    限制等静压机壳污染的工艺和设备

    公开(公告)号：US4654171A

    公开(公告)日：1987-03-31

    申请号：US673437

    申请日：1984-11-20

    申请人： Marcel Boncoeur ,  Francois Mandet ,  Marc Palacio

    发明人： Marcel Boncoeur ,  Francois Mandet ,  Marc Palacio

    IPC分类号： B25J21/02 ,  G21F9/34 ,  G21F7/04 ,  G21F9/36

    CPC分类号： G21F9/34 ,  B25J21/02

    摘要： Process and apparatus for confining the pollution of an isostatic pressing enclosure.At the end of an isostatic pressing operation, a glove box is sealingly fixed above the enclosure, the plug is removed from the latter and deposited within the glove box, after which the sampling and inspection operations necessary for detecting any contamination are performed.Application to the compression of radioactive waste by isostatic pressing.

    摘要翻译： 限制等静压机壳污染的工艺和设备。 在等静压操作结束时，将手套箱密封地固定在外壳上方，将塞子从后者中取出并沉积在手套箱内，然后执行检测任何污染所需的取样和检查操作。 通过等静压压缩放射性废物的应用。

    Process for the preparation of lithium aluminosilicate or gamma lithium aluminate ceramics having a controlled stoichiometry and microstructure
    8.
    发明授权
    Process for the preparation of lithium aluminosilicate or gamma lithium aluminate ceramics having a controlled stoichiometry and microstructure 失效
    用于制备具有受控化学计量和微结构的铝硅酸锂或γ-铝酸锂陶瓷的方法

    公开(公告)号：US5545427A

    公开(公告)日：1996-08-13

    申请号：US398813

    申请日：1995-03-06

    申请人： Jean-Pierre Boilot ,  Marcel Boncoeur ,  Bernard Rasneur ,  Olivier Renoult

    发明人： Jean-Pierre Boilot ,  Marcel Boncoeur ,  Bernard Rasneur ,  Olivier Renoult

    IPC分类号： C04B38/00 ,  C01F7/04 ,  C04B35/44 ,  G21B1/11 ,  G21B1/17 ,  G21C3/06

    CPC分类号： C04B35/44 ,  C01F7/043

    摘要： This invention relates to a process for the preparation of lithium aluminosilicate or gamma lithium aluminate ceramics having a controlled microstructure and stoichiometry.According to this process, mixing takes place accompanied by stirring in a short chain anhydrous alcohol of an unpolymerized liquid aluminium alkoxide and optionally a silicon alkoxide with a hydrated or unhydrated lithium hydroxide, followed by the addition of water in order to hydrolyze the mixture and obtain, after drying, beta LiAlO.sub.2 powder.This powder can be directly compacted and then sintered at temperatures of 800.degree. to 1150.degree. C. without prior calcination giving a gamma lithium aluminate ceramic with a controlled stoichiometry and microstructure (grains of 0.1 to 10 .mu.m).

    摘要翻译： 本发明涉及一种制备具有受控微结构和化学计量的铝硅酸锂或γ-铝酸锂陶瓷的方法。 根据该方法，在未聚合的液体铝醇盐的短链无水醇和任选的含有水合或未水合氢氧化锂的硅烷醇盐的搅拌下进行混合，然后加入水以水解混合物并获得 ，干燥后，加入β-LiAlO2粉末。 该粉末可以直接压实，然后在800℃至1150℃的温度下烧结，而无需预先煅烧，得到具有受控化学计量和微观结构（0.1至10μm的晶粒）的γ铝酸铝陶瓷。

    Process for shaping a material by hot isostatic pressing and titanium sheath usable in this process
    9.
    发明授权
    Process for shaping a material by hot isostatic pressing and titanium sheath usable in this process 失效
    通过热等静压和钛护套成型材料的方法可用于该方法

    公开(公告)号：US4983339A

    公开(公告)日：1991-01-08

    申请号：US229226

    申请日：1988-08-05

    申请人： Marcel Boncoeur ,  Thierry Lieven ,  Marc Palacio

    发明人： Marcel Boncoeur ,  Thierry Lieven ,  Marc Palacio

    IPC分类号： B22F3/12 ,  B22F3/14 ,  B22F3/15 ,  C04B35/645

    CPC分类号： C04B35/6455 ,  B22F3/1241

    摘要： The invention relates to a process for shaping a material by isostatic compression at a temperature of at least 1300.degree. C. of a powder of said material in a tight sheath.The sheath is made from titanium or a titanium alloy and is internally coated with tantalum in such a way that the sheath can be embrittled during hot isostatic compression, by the diffusion of tantalum into the titanium or titanium alloy, in the presence of oxygen. In general, the titanium sheath is coated with tantalum by spraying in the presence of oxygen.The use of such a sheath makes it possible to avoid the operation of eliminating the sheath chemically or mechanically conventionally necessary in such processes.

    摘要翻译： 本发明涉及通过在紧密护套中的所述材料的粉末在至少1300℃的温度下通过等静压来成形材料的方法。 护套由钛或钛合金制成并且在内部涂覆有钽，使得在氧气等离子体压缩过程中，通过在氧气存在下将钽扩散到钛或钛合金中，护套可以被脆化。 通常，在钛的存在下通过喷涂钛包覆钽。 使用这样的护套使得可以避免在这些工艺中化学或机械地传统需要消除鞘的操作。

    Process for the production of porous products made from boron or boron compounds
    10.
    发明授权
    Process for the production of porous products made from boron or boron compounds 失效
    用于生产由硼或硼化合物制成的多孔产品的方法

    公开(公告)号：US4614637A

    公开(公告)日：1986-09-30

    申请号：US726728

    申请日：1985-04-24

    申请人： Marcel Boncoeur ,  Bernard Hansz ,  Thierry Lieven

    发明人： Marcel Boncoeur ,  Bernard Hansz ,  Thierry Lieven

    IPC分类号： C01B35/02 ,  C01B35/04 ,  G21C3/62 ,  B22F3/10

    CPC分类号： C01B35/023 ,  C01B35/02 ,  C01B35/04

    摘要： The invention relates to a process for the production of porous products of boron or boron compounds.This process comprises the following stages:(1) suspending the boron powder in a solution of an alkali metal salt, hydroxide and/or oxide,(2) then separating the powder from the suspension liquid by settling,(3) drying the thus separated powder to obtain an agglomerated powder, and(4) subjecting the thus obtained agglomerated powder to at least two heat treatments performed at different temperatures, the final stage of the heat treatment being performed at a temperature of 1500.degree. to 2200.degree. C. and the first stage being performed at a temperature below that of the final stage.The heat treatment can be performed in three stages, as shown in the attached graph.

    摘要翻译： 本发明涉及生产硼或硼化合物的多孔产品的方法。 该方法包括以下步骤：（1）将硼粉末悬浮在碱金属盐，氢氧化物和/或氧化物的溶液中，（2）然后通过沉降将粉末与悬浮液分离，（3）干燥所分离的 粉末以获得凝聚粉末，和（4）将如此获得的附聚粉末在不同温度下进行至少两次热处理，热处理的最后阶段在1500℃至2200℃的温度下进行，并且 第一阶段在低于最后阶段的温度下进行。 热处理可以分三个阶段进行，如附图所示。