公开(公告)号：US5102449A

公开(公告)日：1992-04-07

申请号：US754316

申请日：1991-09-04

申请人： Christian A. B. Ducrocq ,  Marcel Garnier ,  Gerard Lemaitre ,  Pascal J. Rivat ,  Pierre M. Vernay

发明人： Christian A. B. Ducrocq ,  Marcel Garnier ,  Gerard Lemaitre ,  Pascal J. Rivat ,  Pierre M. Vernay

IPC分类号： C21C5/52 ,  C22B9/16 ,  C22B9/22

CPC分类号： C22B9/221 ,  C21C5/5241 ,  C22B9/16 ,  Y02P10/253 ,  Y10S75/96

摘要： In a method of remelting metallic materials, particularly nickel-based superalloys, in which the melting operation is carried out in a cooled copper crucible under clean vacuum conditions by means of electromagnetic inductors, the magnetic field applied to the mass of molten metal has a frequency between 50 Hz and 5.times.10.sup.6 Hz, preferably between 5.times.10.sup.3 Hz and 5.times.10.sup.5 Hz, so as to effect simultaneously electromagnetic stirring of the liquid metal and a surface concentration at the cold walls of the mass to be recast of all the non-conductive particles, especially ceramic inclusions, thereby achieving an inclusion decanting.

摘要翻译： 在重熔金属材料，特别是镍基超级合金的方法中，其中通过电磁感应器在清洁的真空条件下在冷却的铜坩埚中进行熔化操作，施加到熔融金属块的磁场具有频率 在50Hz和5×106Hz之间，优选在5×103Hz和5×105Hz之间，以便同时实现液态金属的电磁搅拌和在该物质的冷壁处的表面浓度，以重铸所有非导电颗粒，特别是陶瓷 夹杂物，从而实现包含倾析。

公开(公告)号：US5284618A

公开(公告)日：1994-02-08

申请号：US854895

申请日：1992-03-20

申请人： Michel L. Allouard ,  Yves C. Bienvenu ,  Christophe Delaunay ,  Christian A. B. Ducrocq ,  Gerard Lemaitre ,  Michel Marty ,  Andre Walder

发明人： Michel L. Allouard ,  Yves C. Bienvenu ,  Christophe Delaunay ,  Christian A. B. Ducrocq ,  Gerard Lemaitre ,  Michel Marty ,  Andre Walder

IPC分类号： C22C27/02 ,  C22C14/00

CPC分类号： C22C27/02

摘要： A niobium and titanium based alloy having a density less than 6.5 and possessing a high resistance to oxidation at high temperatures in the region of 900.degree. C. has a chemical composition comprising, in atomic percentages:more than 24% Nbfrom 30 to 48% Tifrom 21 to 38% Aland possibly up to 8% of at least one of Cr, Mo, V and Zr.

摘要翻译： 在900℃的区域，密度小于6.5并且在高温下具有高抗氧化性的铌和钛基合金具有以下原子百分比的化学组成：超过24％的Nb为30-48％ Ti为21〜38％，可能为Cr，Mo，V，Zr中的至少8％。

公开(公告)号：US4280639A

公开(公告)日：1981-07-28

申请号：US49293

申请日：1979-06-18

申请人： Gerard Lemaitre

发明人： Gerard Lemaitre

IPC分类号： G01F11/24 ,  G01F11/10

CPC分类号： G01F11/24

摘要： A dispenser is provided which is adapted to be used in connection with a hopper for distribution of a granular and/or powdered product, said dispenser having a rotary star-shaped distributor on which is mounted a plurality of crenellated radial blades which upon rotation move between two parallel walls at right angles to the axis of rotation, one wall being an upstream wall and the other a downstream wall, each having at least one cut-out nonaligned with the cut-out in the other, one cut-out being an inlet on the upstream wall and another one an outlet on the downstream wall, the upstream wall having on its inner face at least one stud which is disposed in line with the outlet and the edge of each crenellated radial blade being so crenellated that the recessed surface of the crenellation matches the projecting stud or studs of the upstream wall whereby a constant measured quantity of granular and/or powdered product is dispensed.BACKGROUND

摘要翻译： 提供一种分配器，其适于与用于分配颗粒和/或粉末产品的料斗结合使用，所述分配器具有旋转星形分配器，在该分配器上安装有多个锯齿状径向叶片，其在旋转之间在第 两个平行的壁与旋转轴线成直角，一个壁是上游壁，另一个壁是下游壁，每个壁具有至少一个与另一个切口不对齐的切口，一个切口是入口 在上游壁上，另一个是在下游壁上的出口，上游壁在其内表面上具有至少一个与出口成一直线设置的螺柱，并且每个锯齿状径向叶片的边缘被钝化，使得凹陷表面 螺旋排列与上游壁的突出的螺柱或螺柱匹配，由此分配恒定的测量量的颗粒和/或粉末状产品。

公开(公告)号：US20090315202A1

公开(公告)日：2009-12-24

申请号：US12486393

申请日：2009-06-17

申请人： Christian de Mollerat du Jeu ,  Jean-Francois Carre ,  Marc Ferrari ,  Gerard Lemaitre ,  Emmanuel Hugot

发明人： Christian de Mollerat du Jeu ,  Jean-Francois Carre ,  Marc Ferrari ,  Gerard Lemaitre ,  Emmanuel Hugot

IPC分类号： B29D11/00

CPC分类号： G02B5/10 ,  B24B1/00 ,  B24B13/0043 ,  B24B13/005 ,  G02B3/02 ,  G02B5/09

摘要： A method of shaping an aspherical optical element, such as a composite mirror element, the method comprising the following steps:fastening, preferably by adhesive, an optical element blank, presenting an optical surface that is to be shaped, to the inside of a ring, the optical surface of the blank projecting beyond an edge of said ring;applying forces and moments to the perimeter of the ring in such a manner as to deform it in controlled manner, thereby also deforming the optical surface of the blank fastened to its inside;shaping said deformed optical surface by abrasion so as to restore it to a shape that is spherical or planar; andextracting the blank from the ring so as to release the stresses deforming said shaped optical surface, thereby enabling it to acquire the desired aspherical shape.

摘要翻译： 一种对诸如复合镜元件的非球面光学元件成形的方法，该方法包括以下步骤：优选地通过粘合剂将呈现要被成形的光学表面的光学元件坯件紧固到环的内部 ，所述坯件的光学表面突出超过所述环的边缘; 以使其以受控的方式变形的方式将力和力矩施加到环的周边，从而也使得固定在其内部的坯料的光学表面变形; 通过磨损使所述变形的光学表面成形，以使其恢复为球形或平面的形状; 并从环中提取坯料，以释放使所述成形的光学表面变形的应力，从而使其获得所需的非球面形状。