Dental articulator
    1.
    发明授权
    Dental articulator 失效
    牙科咬合器

    公开(公告)号:US3930312A

    公开(公告)日:1976-01-06

    申请号:US434205

    申请日:1974-01-17

    申请人: Hans Daub

    发明人: Hans Daub

    IPC分类号: A61C11/02 A61C11/00

    CPC分类号: A61C11/02

    摘要: A dental articulator comprises a pair of upper and lower brackets for upper and lower artificial dentures, respectively, with a support between the two brackets. The upper bracket is pivotally interconnected to the support for vertical swinging movement of the upper bracket relative to the occlusal plane of the articulator. The support and the lower bracket are slidably interconnected for relative movement in a forward and rearward direction parallel to the occlusal plane and perpendicular to the axis of vertical swinging of the upper bracket. The support and lower bracket can also have limited relative rotational movement in a plane parallel to the occlusal plane. A plate is insertable and removable in the articulator in inverted positions, so that in one position the upper surface of the plate lies in the occlusal plane and in the inverted position the under surface of the plate lies in the occlusal plane.

    摘要翻译: 牙科咬合器包括分别用于上和下人造假牙的一对上和下支架,在两个支架之间具有支撑。 上支架枢转地互连到支撑件,用于上支架相对于咬合器的咬合面的垂直摆动运动。 支撑件和下支架可滑动地相互连接,用于在平行于咬合平面并垂直于上支架的垂直摆动轴线的前后方向上的相对运动。 支撑和下支架也可以在平行于咬合平面的平面中具有有限的相对旋转运动。 板可在相对位置的可咬入器中插入和移除,使得在一个位置中,板的上表面位于咬合平面中,并且在倒置位置,板的下表面位于咬合面中。

    Hard metal or cermet cutting material and the use thereof
    2.
    发明申请
    Hard metal or cermet cutting material and the use thereof 审中-公开
    硬质金属或金属陶瓷切割材料及其用途

    公开(公告)号:US20050115742A1

    公开(公告)日:2005-06-02

    申请号:US10509304

    申请日:2003-03-21

    CPC分类号: C22C29/005 B22F2005/001

    摘要: The invention relates to a hard metal or cermet cutting material for cutting chromium-alloy steel parts. Said cutting material comprises a hard phase containing carbides, nitrides and/or carbonitrides and a binder phase based on iron, cobalt and nickel. The aim of the invention is to prevent an agglomeration of the cutting material during cutting operations. For this purpose, the binder phase contains 10% by weight to 75% by weight of Co, 10% by weight to 75% by weight of Ni, 5% by weight to 30% by weight of Cr, ≧20% by weight to 60% by weight of Fe, the total of Co, Ni, Cr and Fe not exceeding 100% by weight.

    摘要翻译: 本发明涉及用于切割铬合金钢部件的硬金属或金属陶瓷切割材料。 所述切削材料包括含有碳化物,氮化物和/或碳氮化物的硬质相和基于铁,钴和镍的粘结相。 本发明的目的是在切割操作期间防止切割材料的聚集。 为此,粘合剂相包含10重量%至75重量%的Co,10重量%至75重量%的Ni,5重量%至30重量%的Cr,≥20重量% 至60重量%的Fe,Co,Ni,Cr和Fe的总量不超过100重量%。

    Hard metal or cermet body and method for producing the
    3.
    发明申请
    Hard metal or cermet body and method for producing the 失效
    硬金属或金属陶瓷体及其制造方法

    公开(公告)号:US20070042222A1

    公开(公告)日:2007-02-22

    申请号:US10572000

    申请日:2004-05-14

    IPC分类号: C22C29/02 C22C29/16

    摘要: The invention relates to a hard metal or cermet body comprising a single or several adjoining surfaces. A first layer with a thickness of between 2-100 μm is located beneath the single surface or at least one of the surfaces, said layer comprising an auxiliary metal fraction of between 2 and 25 mass % and up to 25 volume % nitrides or carbonitrides of one or more metals of the IVa group of the periodic table and/or up to 10 volume % carbides and/or carbonitrides of the elements V, Nb, Ta and/or Cr, with WC making up the residual amount. A second layer with a thickness of between 2 and 40 μm is located beneath the first layer, said second layer having a higher nitrogen fraction than the first layer and consisting essentially of nitrides and/or carbonitrides of metals of the IVa group of the periodic table, in addition to containing phase fractions of up to 10 volume % of carbides, nitrides, carbonitrides or oxycarbonitrides of the elements W, Mo, V, Ta, Nb, Cr and/or fractions that are dissolved in the hard substance phase amounting to up to 5 mass % V, NB, TA and up to 2 mass % CR, Mo, W and also containing up to 15 mass % binding agents. A transition zone with a thickness of between 2 and 100 μm is located beneath the second layer, the composition changing gradually to a homogeneous composition in the interior core of the hard metal or cermet body in said zone. To produce said sequence of layers, after being subjected to thermal treatment to produce a layer rich in an auxiliary metal, the body is treated in a nitrogen atmosphere under a nitrogen pressure of 5×103 Pa to 107 Pa below the eutectic.

    摘要翻译: 本发明涉及包含单个或几个相邻表面的硬金属或金属陶瓷体。 厚度在2-100μm之间的第一层位于单个表面或至少一个表面下方,所述层包含2至25质量%和至多25体积%的氮化物或碳氮化物的辅助金属部分 周期表IVa族的一种或多种金属和/或元素V,Nb,Ta和/或Cr的至多10体积%的碳化物和/或碳氮化物,其中WC占剩余量。 厚度在2至40μm之间的第二层位于第一层下方,所述第二层具有比第一层高的氮分数,并且基本上由周期表IVa族金属的氮化物和/或碳氮化物组成 ,除了含有高达10体积%的元素W,Mo,V,Ta,Nb,Cr和/或溶解在硬质相中的级分的碳化物,氮化物,碳氮化物或碳氮氧化物的相分数达到 至5质量%V,NB,TA和至多2质量%的CR,Mo,W,并且还含有至多15质量%的粘合剂。 厚度在2至100μm之间的过渡区域位于第二层下方,该组合物逐渐变成在所述区域中硬质金属或金属陶瓷体的内核中均匀的组成。 为了产生所述层序,在进行热处理以产生富含辅助金属的层之后,在氮气气氛中在氮气压力为5×10 3 Pa至10℃ > 7 Pa低于共晶。