Silicon nitride composite substrate
    61.
    发明授权
    Silicon nitride composite substrate 失效
    氮化硅复合基板

    公开(公告)号:US06599637B1

    公开(公告)日:2003-07-29

    申请号:US09830219

    申请日:2001-04-24

    IPC分类号: B32B1504

    摘要: A Si3N4 composite substrate which manifests no generation of cracking on the substrate even by mechanical shock or thermal shock, and is excellent in heat radiation property and heat-cycle-resistance property is obtained by using a Si3N4 substrate as a ceramic substrate. A Si3N4 substrate having a thermal conductivity of 90 W/m·K or more and a three-point flexural strength of 700 MPa or more is used, and the thickness tm of a metal layer connected on one major surface of the substrate and the thickness tc of the Si3N4 substrate are controlled so as to satisfy the relation formula: 2 tm≦tc≦20 tm. When metal layers are connected to both major surfaces of the Si3N4 substrate, the thickness tc and the total thickness ttm of the metal layers on both major surfaces are controlled so as to satisfy the relation formula: ttm≦tc≦10 ttm.

    摘要翻译: 通过使用Si 3 N 4基板作为陶瓷基板,可以获得表现出在机械冲击或热冲击下也不会在基板上产生裂纹的Si 3 N 4复合基板,并且具有优异的散热性和耐热循环性。 使用热导率为90W / mK以上,三点弯曲强度为700MPa以上的Si 3 N 4基板,连接在基板的一个主表面上的金属层的厚度tm和厚度tc 控制Si 3 N 4衬底以满足关系式:2tm <= tc <= 20tm。 当金属层连接到Si3N4基板的两个主表面时,控制两个主表面上的金属层的厚度tc和总厚度ttm,以满足关系式:ttm <= tc <= 10ttm。

    Screw rotor type wet vacuum pump
    62.
    发明授权
    Screw rotor type wet vacuum pump 失效
    螺旋转子式湿式真空泵

    公开(公告)号:US06375443B1

    公开(公告)日:2002-04-23

    申请号:US09647254

    申请日:2000-09-22

    申请人: Masashi Yoshimura

    发明人: Masashi Yoshimura

    IPC分类号: F04C1816

    CPC分类号: F04C29/0007 F04C18/16

    摘要: A feed pipe 26 for a sealing water is connected to a housing of the pump to communicate with an enclosed chamber which is defined between a position in which a helical seal line of screw rotors 17 isolates the enclosed chamber from a suction port 15 of the pump and another position in which the enclosed chamber begins to open to a discharge port 24. Alternatively, a feed pipe for the sealing water is connected to the suction port 15 of the vacuum pump, and the feed pipe 26 is provided with a valve V which opens when the suction pressure of the sealing water becomes lower than −380 mmHg.

    摘要翻译: 用于密封水的进料管26连接到泵的壳体以与封闭室连通,所述封闭室限定在螺旋转子17的螺旋形密封线将密封室与泵的吸入口15隔离的位置 另一个位置,封闭室开始向排放口24打开。或者,用于密封水的供给管连接到真空泵的吸入口15,并且进料管26设置有阀V, 当密封水的吸入压力低于-380 mmHg时打开。

    Screw vacuum pump having valve controlled cooling chambers
    63.
    发明授权
    Screw vacuum pump having valve controlled cooling chambers 失效
    螺杆真空泵具有阀控冷却室

    公开(公告)号:US06315535B1

    公开(公告)日:2001-11-13

    申请号:US09647251

    申请日:2000-09-22

    IPC分类号: F04C1816

    CPC分类号: F04C28/28 F04C18/16 F04C29/04

    摘要: A discharge side housing 3 has a third cooling water chamber 19 communicating with a first cooling water chamber 7 of a main housing 1 through a cooling water passage 26. The third cooling water chamber 19 is connected to a cooling water outlet pipe 27 which is connected to an inlet port 28a of a three-way valve 28. The three-way valve 28 has a switching port 28b which can communicate with a pipe line 29 connected to the first cooling water chamber 7. The three-way valve 28 has an outlet 28c connected to a pipe line 30 which communicates with a second cooling water chamber 22 of a suction side housing 2. The second cooling water chamber 22 is connected to a cooling water discharge line 31 provided with a flow control valve 32 allowing a back pressure for a cooling water flowing thereinto.

    摘要翻译: 排出侧壳体3具有通过冷却水通道26与主壳体1的第一冷却水室7连通的第三冷却水室19.第三冷却水室19与连接的冷却水出口管27连接 到三通阀28的入口28a。三通阀28具有可与连接到第一冷却水室7的管路29连通的切换口28b。三通阀28具有出口 28c连接到与吸入侧壳体2的第二冷却水室22连通的管路30.第二冷却水室22连接到设置有流量控制阀32的冷却水排出管线31,流量控制阀32允许背压 流入其中的冷却水。

    Silicon nitride ceramic and process for forming the same
    64.
    发明授权
    Silicon nitride ceramic and process for forming the same 失效
    氮化硅陶瓷及其形成方法

    公开(公告)号:US5767026A

    公开(公告)日:1998-06-16

    申请号:US633797

    申请日:1996-04-10

    CPC分类号: C04B35/593 C04B35/597

    摘要: There are provided a process for forming a silicon nitride sintered body, encompassing a sialon sintered body, by making much of the superplasticity of the sintered body intact as a simple material without formation thereof into a composite material, and a formed sintered body produced by the foregoing process. A silicon nitride sintered body (encompassing a sialon sintered body) having a relative density of at least 95% and a linear density of 120 to 250 in terms of the number of grains per 50 .mu.m in length in a two-dimensional cross section of the sintered body is formed through plastic deformation thereof at a strain rate of at most 10.sup.-1 /sec under a tensile or compressive pressure at a temperature of 1,300 to 1,700.degree. C. The formed sintered body has a degree of orientation of 5 to 80% as examined according to a method specified by Saltykov, a linear density of 80 to 200, and excellent mechanical properties especially at ordinary temperatures.

    摘要翻译: PCT No.PCT / JP95 / 02026 Sec。 371日期:1996年4月10日 102(e)日期1996年4月10日PCT提交1995年10月4日PCT公布。 公开号WO96 / 10546 日本特开1996年4月11日提供了一种形成氮化硅烧结体的方法,其包括塞隆烧结体,通过使烧结体的大部分超塑性作为简单材料而不被形成为复合材料而形成,并形成 通过上述方法制造的烧结体。 一种氮化硅烧结体(包括赛隆烧结体),其相对密度至少为95%,线密度为120-250,以二维截面为单位长度的每50微米的颗粒数 该烧结体通过在1300〜1700℃的拉伸或压缩压力下以至多10-1 /秒的应变速率的塑性变形形成。所形成的烧结体的取向度为5〜80 %,根据Saltykov规定的方法,线密度为80〜200,特别是在常温下,具有优异的机械性能。

    Composite ceramics sintered body
    65.
    发明授权
    Composite ceramics sintered body 失效
    复合陶瓷烧结体

    公开(公告)号:US5459111A

    公开(公告)日:1995-10-17

    申请号:US159804

    申请日:1993-11-30

    IPC分类号: C04B35/505 C04B35/645

    CPC分类号: C04B35/645 C04B35/505

    摘要: The strength of a composite sintered body including yttrium oxide is improved. A composite ceramics sintered body includes a matrix of yttrium oxide and silicon carbide particles dispersed within the matrix. A compound oxide phase including yttrium and silicon is present at the surface of the sintered body. A sintered body is obtained by compression-molding mixed powder including yttrium oxide powder and silicon carbide powder in an inert gas atmosphere of at least 1550.degree. C. The sintered body is subjected to a heat treatment for at least 0.5 hour and not more than 12 hours in an atmosphere including oxygen gas in the range of at least 900.degree. C. and less than 1200.degree. C.

    摘要翻译: 提高了包含氧化钇的复合烧结体的强度。 复合陶瓷烧结体包括分散在基质内的氧化钇和碳化硅颗粒的基体。 在烧结体的表面存在包含钇和硅的复合氧化物相。 通过在至少1550℃的惰性气体气氛中将含有氧化钇粉末和碳化硅粉末的混合粉末压缩成型而获得烧结体。烧结体经受至少0.5小时且不超过12的热处理 在包括氧气在900℃以上且小于1200℃的气氛中的小时。

    TRANSPARENT POLYCRYSTALLINE SPINEL SUBSTRATE AND METHOD OF PRODUCING SAME, AND OPTICAL ARTICLE USING SAID SUBSTRATE
    66.
    发明申请
    TRANSPARENT POLYCRYSTALLINE SPINEL SUBSTRATE AND METHOD OF PRODUCING SAME, AND OPTICAL ARTICLE USING SAID SUBSTRATE 审中-公开
    透明多晶弹簧基板及其制造方法,以及使用该基板的光学件

    公开(公告)号:US20100247812A1

    公开(公告)日:2010-09-30

    申请号:US12744039

    申请日:2008-11-21

    IPC分类号: C09K19/00 B28B3/00

    摘要: There is provided a transparent polycrystalline spinel substrate characterized in having a transmittance of 0.005% or less in a crossed Nicol system at a thickness of 1 mm and a wavelength of 450 nm, which does not generate image blurring or light-dark change when used in optical products. There is also provided a method for producing the transparent polycrystalline spinel substrate comprising a step for preparing a spinel powder, a step for molding the spinel powder and producing a spinel formed body, a step for sintering the spinel formed body and producing a spinel sintered body, and a step for subjecting the spinel sintered body to hot isostatic pressing (HIP) and producing a spinel polycrystalline body. There is further provided a liquid crystal projector and a receiver for rear-projection television having the aforementioned transparent polycrystalline spinel substrate.

    摘要翻译: 提供了一种透明多晶尖晶石基材,其特征在于在1mm厚度和450nm波长的正交尼科耳系统中透光率为0.005%以下,当使用时不产生图像模糊或明暗变化 光学产品。 还提供了一种制造透明多晶尖晶石基材的方法,包括制备尖晶石粉末的步骤,尖晶石粉末成型步骤和尖晶石成形体的制造步骤,用于烧结尖晶石成形体并制备尖晶石烧结体 以及对尖晶石烧结体进行热等静压(HIP)并制造尖晶石多晶体的工序。 此外,还提供了具有上述透明多晶尖晶石基板的背投电视的液晶投影仪和接收机。

    METHOD OF MANUFACTURING MOLDED ARTICLE FORMED WITH THERMOSETTING RESIN AND INJECTION MOLDING APPARATUS
    68.
    发明申请
    METHOD OF MANUFACTURING MOLDED ARTICLE FORMED WITH THERMOSETTING RESIN AND INJECTION MOLDING APPARATUS 审中-公开
    用热固性树脂和注射成型装置制造成型制品的方法

    公开(公告)号:US20100025869A1

    公开(公告)日:2010-02-04

    申请号:US12519312

    申请日:2007-09-14

    IPC分类号: B29D11/00 B29C45/72 B29C45/03

    摘要: There is provided a method of manufacturing a molded article formed with a thermosetting resin and an injection molding apparatus so that occurrence of blurs and containing of bubbles at the time of molding can be prevented. Provided is a method of manufacturing a molded article formed with a thermosetting resin by using a mold including: a cavity for molding a product part; a gate which commutes with the cavity to guide a liquid thermosetting resin into the cavity, thereby forming a gate part; a runner which commutes with the gate part to guide the liquid resin into the gate part, thereby forming a runner part; and an overflow catcher which commutes with the cavity to receive the liquid resin overflown from the cavity, thereby forming an overflow part, wherein the method includes: an injecting process of injecting the liquid resin from the runner through the gate to the cavity, until the overflow catcher is filled from the cavity; a hardening process of heating the liquid resin in the mold, thereby hardening the liquid resin; a demolding process of demolding a resin molded article having the runner part, the gate part, the product part, and the overflow part from the mold; and a cutting process of detaching the gate part and the overflow part from the product part of the demolded resin molded article.

    摘要翻译: 提供一种制造由热固性树脂和注射成型设备形成的模制品的方法,从而可以防止在模制时出现模糊和含有气泡。 提供一种通过使用模具制造由热固性树脂形成的模制品的方法,所述模具包括:用于模制产品部件的空腔; 与空腔通过的门,用于将液体热固性树脂引导到空腔中,由此形成栅极部分; 与浇口部分通过以将液体树脂引导到浇口部分中的流道,从而形成流道部分; 以及溢流捕获器,其与腔体通过以接收从腔体溢出的液体树脂,从而形成溢流部分,其中所述方法包括:将来自流道的液体树脂通过浇口喷射到空腔的注入过程,直到 溢流捕获器从腔体填充; 加热模具中的液态树脂的硬化过程,从而硬化液态树脂; 从模具脱模具有流道部,浇口部,产品部和溢流部的树脂成型体的脱模工序; 以及从脱模树脂模制品的产品部分分离浇口部分和溢流部分的切割过程。

    Silicon nitride-based composite sintered body and producing method thereof
    69.
    发明申请
    Silicon nitride-based composite sintered body and producing method thereof 失效
    氮化硅基复合烧结体及其制造方法

    公开(公告)号:US20050164865A1

    公开(公告)日:2005-07-28

    申请号:US11031994

    申请日:2005-01-11

    申请人: Masashi Yoshimura

    发明人: Masashi Yoshimura

    摘要: The present invention provides a silicon nitride-based sintered body having excellent mechanical properties from room temperature to a medium-low temperature range, a low friction coefficient and excellent wear resistance; a raw material powder for the sintered body; a method of producing the raw material powder; and a method of producing the sintered body. The sintered body of the present invention comprises silicon nitride, titanium compounds and boron nitride, or else silicon nitride, a titanium-based nitride and/or carbide, silicon carbide and graphite and/or carbon; and it has a mean particle diameter of 100 nm or less, and a friction coefficient under lubricant-free conditions of 0.3 or less, or else 0.2 or less. The silicon nitride-based composite powder, which is the raw material of the sintered body comprises primary particles of each of silicon nitride and titanium compounds, containing boron or carbon, each having a mean particle diameter of 20 nm or less, or 30 nm or less, and a phase containing an amorphous phase that surrounds the surfaces of the primary particles. Moreover, the method of producing the sintered body comprises pulverizing and mixing a silicon nitride powder, a sintering aid powder, a metallic titanium powder and a boron nitride powder, or else a silicon nitride powder, a sintering aid powder, a metallic titanium powder and a graphite and/or carbon powder, until the mean particle diameters become 20 nm or less, or else 30 nm or less, thus forming secondary

    摘要翻译: 本发明提供一种氮化硅类烧结体,其具有从室温至中低温范围的优异的机械性能,低摩擦系数和优异的耐磨性; 用于烧结体的原料粉末; 一种生产原料粉末的方法; 和烧结体的制造方法。 本发明的烧结体包括氮化硅,钛化合物和氮化硼,或氮化硅,钛基氮化物和/或碳化物,碳化硅和石墨和/或碳; 平均粒径为100nm以下,无润滑条件下的摩擦系数为0.3以下,或0.2以下。 作为烧结体的原料的氮化硅系复合粉末包含平均粒径为20nm以下或30nm以下的硼或碳的氮化硅和钛化合物的一次粒子, 以及包含包围一次颗粒表面的非晶相的相。 此外,制造烧结体的方法包括将氮化硅粉末,烧结助剂粉末,金属钛粉末和氮化硼粉末,或氮化硅粉末,烧结助剂粉末,金属钛粉末和 石墨和/或碳粉末,直到平均粒径变为20nm以下,或者30nm以下,从而形成二次

    Conductive silicon nitride composite sintered body and a process for the production thereof
    70.
    发明授权
    Conductive silicon nitride composite sintered body and a process for the production thereof 失效
    导电氮化硅复合烧结体及其制造方法

    公开(公告)号:US06911162B2

    公开(公告)日:2005-06-28

    申请号:US10172013

    申请日:2002-06-17

    申请人: Masashi Yoshimura

    发明人: Masashi Yoshimura

    CPC分类号: C04B35/591

    摘要: A conductive silicon nitride composite sintered body having an average grain size of 200 nm or less and whose relative roughness (Ra) after electric discharge machining is 0.6 μm or less can be obtained by grinding/mixing a silicon nitride powder and a metal powder together until the average particle size of the silicon nitride powder becomes 30 to 60 nm, and subsequently by molding and sintering. With the contexture that is characteristic of the present invention, it is possible to obtain a conductive silicon nitride composite sintered body having electric conductive particles of 5 to 60 volume percent that is capable of electric discharge machining.

    摘要翻译: 通过将氮化硅粉末和金属粉末一起研磨/混合,可以获得平均粒径为200nm以下,并且其放电加工后的相对粗糙度(Ra)为0.6μm以下的导电性氮化硅复合烧结体,直到 氮化硅粉末的平均粒径为30〜60nm,随后通过模压和烧结。 通过本发明的特征,可以获得具有能够进行放电加工的5〜60体积%的导电性粒子的导电性氮化硅复合烧结体。