Heat-resisting phosphate based compound sintered bodies and production
thereof
    2.
    发明授权
    Heat-resisting phosphate based compound sintered bodies and production thereof 失效
    耐热磷酸盐基复合烧结体及其制备

    公开(公告)号:US4968648A

    公开(公告)日:1990-11-06

    申请号:US379676

    申请日:1989-07-10

    IPC分类号: C04B35/48

    CPC分类号: C04B35/481

    摘要: Heat-resisting phosphate based compound sintered bodies are disclosed, which each contain not less than 10% by weight of a crystalline phase of RZr.sub.4 (PO.sub.4).sub.6 in which R is an element in Group IIa of the Periodic Table. A weight-reduced percentage of the sintered body when being thermally treated at 1,400.degree. C. for 100 hours is not more than 10%. A process for producing such phosphate based compound sintered bodies is also disclosed.

    摘要翻译: 公开了耐热磷酸盐系复合烧结体,其各自含有不少于10重量%的RZr4(PO4)6的结晶相,其中R为元素周期表IIa族元素。 当在1400℃下热处理100小时时,烧结体的重量减少百分比不大于10%。 还公开了一种生产这种磷酸盐基复合烧结体的方法。

    Process for determining the distribution of temperatures at surfaces of
high temperature members
    3.
    发明授权
    Process for determining the distribution of temperatures at surfaces of high temperature members 失效
    确定高温部件表面温度分布的方法

    公开(公告)号:US4923308A

    公开(公告)日:1990-05-08

    申请号:US334133

    申请日:1989-04-06

    IPC分类号: G01K11/00 G01N23/225

    CPC分类号: G01K11/003

    摘要: A process for determining a relative temperature distribution at a surface of a high temperature member to be used in a gas containing oxygen at high temperatures is disclosed. The process comprises the step of determining the relative surface temperature distribution of the member by measuring concentrations of oxygen at the surface of the member, which surface is composed of silicon carbide or silicon nitride. The process may also include the step of quantitatively determining a distribution of temperatures at the surface of the member by measuring concentrations of oxygen at the surface of the member, determining a relationship between temperatures and concentrations of oxygen on a surface of a standard member, and comparing the measured oxygen concentrations at the surface of the member with those of a standard member with reference to this relationship.

    摘要翻译: 公开了一种用于确定在高温下含氧气体中使用的高温部件表面的相对温度分布的方法。 该方法包括通过测量构件表面上的氧的浓度来确定构件的相对表面温度分布的步骤,该表面由碳化硅或氮化硅构成。 该方法还可以包括通过测量构件表面处的氧浓度,确定标准构件的表面上的温度和氧浓度之间的关系来定量地确定构件表面处的温度分布的步骤,以及 参考该关系将成员表面上测量的氧浓度与标准成分的氧浓度进行比较。

    Low expansion ceramics and method of producing the same
    4.
    发明授权
    Low expansion ceramics and method of producing the same 失效
    低膨胀陶瓷及其制造方法

    公开(公告)号:US4722916A

    公开(公告)日:1988-02-02

    申请号:US861703

    申请日:1986-05-12

    CPC分类号: C04B35/195

    摘要: Cordierite series dense and low expansion ceramics have excellent thermal shock resistance property, being airtight, heat resistant and having high dimensional stability at high temperatures can be achieved by incorporating 2-10% by weight of P.sub.2 O.sub.5 in the cordierite ceramic and acid treating the fired or sintered body to selectively remove P.sub.2 O.sub.5 to primarily result in an amount of 0.1% by weight of P.sub.2 O.sub.5 remaining in the sintered body.

    摘要翻译: 堇青石系列致密低膨胀陶瓷具有优异的耐热冲击性,气密性,耐热性和在高温下具有高尺寸稳定性可以通过在堇青石陶瓷中掺入2-10重量%的P2O5和酸处理烧制的或 烧结体,以选择性地除去P2O5,主要产生残留在烧结体中的量为0.1重量%的P 2 O 5。

    ARC TUBE AND METHOD OF MANUFACTURING SAME
    6.
    发明申请
    ARC TUBE AND METHOD OF MANUFACTURING SAME 审中-公开
    弧管及其制造方法

    公开(公告)号:US20120133279A1

    公开(公告)日:2012-05-31

    申请号:US13302386

    申请日:2011-11-22

    IPC分类号: H01J61/36 H01J61/06 H01R43/00

    摘要: An arc tube includes a light emitting body for light therein and a ceramic tube having a first capillary and a second capillary integral with respective opposite sides of the light emitting body. A first electrode is inserted and sealed in the first capillary, and a second electrode is inserted and sealed in the second capillary. The first electrode is sealed in the first capillary by shrink fitting.

    摘要翻译: 电弧管包括用于其中的光的发光体和具有与发光体的各个相对侧成一体的第一毛细管和第二毛细管的陶瓷管。 将第一电极插入并密封在第一毛细管中,并且将第二电极插入并密封在第二毛细管中。 通过收缩配合将第一电极密封在第一毛细管中。

    Mold and molding method
    7.
    发明授权
    Mold and molding method 有权
    模具和成型方法

    公开(公告)号:US08033819B2

    公开(公告)日:2011-10-11

    申请号:US12243187

    申请日:2008-10-01

    IPC分类号: B29C45/03 B29C45/18 B29C45/34

    摘要: A mold includes a gate communicating with the entire perimeter of a cavity serving as a space configured to form a molded article. A self-curable molding material with flowability is fed into the perimeter of the cavity through the gate; hence, the mold has a small number of dead ends compared with the case where, for example, the molding material is fed into the cavity through a part of the cavity, preventing the formation of bubbles left in the cavity. The arrangement of a gate and a vent each making an acute angle results in the spontaneous separation of the molded article in the cavity from solidified material portions in the gate and the vent due to shrinkage on curing.

    摘要翻译: 模具包括与用作形成模制品的空间的空腔的整个周边连通的门。 具有流动性的可自行固化的模塑材料通过浇口进入腔的周边; 因此,与例如模制材料通过空腔的一部分进入空腔的情况相比,模具具有少量的死端,防止留在空腔中的气泡的形成。 门和通风孔的排列各自形成锐角,导致模制品在空腔中自发分离,由于固化时收缩而导致浇口和通风口中的凝固材料部分。

    MOLD AND MOLDING METHOD
    8.
    发明申请
    MOLD AND MOLDING METHOD 有权
    模具和模具方法

    公开(公告)号:US20090091062A1

    公开(公告)日:2009-04-09

    申请号:US12243187

    申请日:2008-10-01

    IPC分类号: B28B1/14 B29C39/26

    摘要: A mold includes a gate communicating with the entire perimeter of a cavity serving as a space configured to form a molded article. A self-curable molding material with flowability is fed into the perimeter of the cavity through the gate; hence, the mold has a small number of dead ends compared with the case where, for example, the molding material is fed into the cavity through a part of the cavity, preventing the formation of bubbles left in the cavity. The arrangement of a gate and a bent each making an acute angle results in the spontaneous separation of the molded article in the cavity from solidified material portions in the gate and the vent due to shrinkage on curing.

    摘要翻译: 模具包括与用作形成模制品的空间的空腔的整个周边连通的门。 具有流动性的可自行固化的模塑材料通过浇口进入腔的周边; 因此,与例如模制材料通过空腔的一部分进入空腔的情况相比,模具具有少量的死端,防止留在空腔中的气泡的形成。 门和弯曲的每一个倾斜的排列导致空腔中的模制品与由于固化收缩导致的浇口和通气孔中的凝固材料部分的自发分离。

    Process for production of a silicon nitride ceramic
    9.
    发明授权
    Process for production of a silicon nitride ceramic 失效
    氮化硅陶瓷的制造方法

    公开(公告)号:US5804521A

    公开(公告)日:1998-09-08

    申请号:US905025

    申请日:1997-08-01

    CPC分类号: C04B35/5935

    摘要: A silicon nitride ceramic of the present invention possesses excellent strength of the surface, including a silicon nitride and a rare earth oxide compound and being characterized in that the ratio of the transverse rupture strength, at a room temperature, of the fired surface used as a tensile surface to the transverse rupture strength, at a room temperature, of the worked surface used as a tensile surface subjected to the working so as to have the surface roughness of R.sub.MAX 0.8 .mu.m or less is 0.7 or more, and the strength ratio is satisfied even when any portion besides the fired surface is utilized as the tensile surface to be worked to have the surface roughness of R.sub.MAX 0.8 .mu.m or less. The present invention also provides a process for producing a silicon nitride ceramic including the steps of: (1) mixing .alpha.-Si.sub.3 N.sub.4 powder and .beta.-Si.sub.3 N.sub.4 powder to obtain a raw material powder so as to satisfy the formula indicated by 0.05.ltoreq..beta./.alpha.+.beta..ltoreq.0.50, in which a refers to the weight of .alpha.-Si.sub.3 N.sub.4 powder and .beta. refers to the weight of .beta.-Si.sub.3 N.sub.4 powder; (2) mixing at least one sintering aid to the raw material powder; (3) forming the powder mixture to give a compact; and (4) firing the compact at a temperature ranging from 1800.degree. to 2000.degree. C. under a nitrogen atmosphere having an atmospheric pressure of at least 1 atm.

    摘要翻译: 本发明的氮化硅陶瓷具有优异的表面强度,包括氮化硅和稀土氧化物,其特征在于,在室温下,作为烧结表面的烧结表面的横向断裂强度的比例 作为经受加工的拉伸面的加工面的拉伸面与横向断裂强度在室温下的表面粗糙度为0.8μm以下,强度比为 即使将烧成的表面以外的任何部分用作待加工的拉伸面,其表面粗糙度为0.8μm以下。 本发明还提供一种制造氮化硅陶瓷的方法,包括以下步骤:(1)将α-Si 3 N 4粉末和β-Si 3 N 4粉末混合以获得原料粉末,以满足0.05≤β /α+β<0.50,其中a表示α-Si 3 N 4粉末的重量,β表示β-Si 3 N 4粉末的重量; (2)将至少一种烧结助剂与原料粉末混合; (3)形成粉末混合物以产生致密的; 和(4)在大气压至少为1个大气压的氮气气氛下,在1800〜2000℃的温度下烧成。

    Blade, turbine disc and hybrid type gas turbine blade
    10.
    发明授权
    Blade, turbine disc and hybrid type gas turbine blade 失效
    叶片,涡轮盘和混合型燃气轮机叶片

    公开(公告)号:US5743713A

    公开(公告)日:1998-04-28

    申请号:US713445

    申请日:1996-09-13

    摘要: A ceramic blade for a hybrid type gas turbine blade has a dovetail portion, a platform portion formed on the dovetail portion and blade portions formed on the platform portion. The number of the blade portions formed on one platform portion is two or more. The upper surface of the platform portion is shaped into an arc-like form, and the dovetail portion is linearly formed in a tangential direction to a turbine rotation direction. By the utilization of this blade, the hybrid type gas turbine blade can inhibit the leakage of a gas and can be easily manufactured and is excellent in durability.

    摘要翻译: 用于混合型燃气轮机叶片的陶瓷刀片具有燕尾部分,形成在燕尾部分上的平台部分和形成在平台部分上的刀片部分。 形成在一个平台部分上的叶片部分的数量是两个或更多个。 平台部分的上表面成形为弧形,并且燕尾部分沿涡轮转动方向的切线方向线性地形成。 通过利用该叶片,混合型燃气轮机叶片能够抑制气体的泄漏,容易制造,耐久性优异。