How the material to analyze the inside of the density by using the X-ray tomography

    公开(公告)号:JP2013525822A

    公开(公告)日:2013-06-20

    申请号:JP2013510017

    申请日:2011-05-06

    Inventor: ジェヨル イ

    CPC classification number: G01N9/24 G01N23/046 G01N2223/419

    Abstract: Disclosed is a method for analyzing internal density of material by using X-ray computed tomography, comprising the steps of installing a cylinder-shaped jig between an x-ray generator and an x-ray detector, inserting a material to be analyzed and a plurality of standard specimens whose densities are known into the inside of the cylinder-shaped jig, performing X-ray computed tomography while rotating the cylinder-shaped jig through 360°, and calculating the internal density of distribution of the material to be analyzed by using the X-ray intensities shown in the x-ray tomography image. By using the method of the present invention, X-ray tomography image is converted to the image showing the internal density distribution of the material, improving the qualitative decision by naked eye by providing quantitative decision method.

    Insensitive solid propellant composition
    4.
    发明专利
    Insensitive solid propellant composition 审中-公开
    敏感固体推进剂组合物

    公开(公告)号:JP2012188340A

    公开(公告)日:2012-10-04

    申请号:JP2011158964

    申请日:2011-07-20

    CPC classification number: C06B29/22 C06B33/14 C06B45/105

    Abstract: PROBLEM TO BE SOLVED: To provide a new insensitive solid propellant composition which is insensitive to impact and thermal reaction and used for a solid rocket propulsion engine.SOLUTION: The insensitive solid propellant composition includes: 5-10 wt.% of one or more selected from hydroxyl group-terminated polyethers and hydroxyl group-terminated polycaprolactone ethers as a binder; 5-15 wt.% of N-butyl-N-(2-nitrateethyl)nitramine as a plasticizer; 10-70 wt.% of ammonium perchlorate as a main oxidant: 10-30 wt.% of ammonium nitrate as an auxiliary oxidant; and 1-30 wt.% of one or more selected from the group comprising Al-compounds, Zr-compounds, B-compounds and Fe-compounds.

    Abstract translation: 要解决的问题:提供对冲击和热反应不敏感且用于固体火箭推进发动机的新的不敏感固体推进剂组合物。 解决方案:不敏感的固体推进剂组合物包括:5-10重量%的一种或多种选自羟基封端的聚醚和作为粘合剂的羟基封端的聚己内酯醚; 5-15重量%的N-丁基-N-(2-硝基乙基)硝胺作为增塑剂; 10-70重量%的高氯酸铵作为主要氧化剂:10-30重量%的硝酸铵作为辅助氧化剂; 和1-30重量%的选自Al化合物,Zr化合物,B化合物和Fe化合物的一种或多种。 版权所有(C)2013,JPO&INPIT

    Cooling device for fluid, flight vehicle having the same, and cooling method for fluid
    9.
    发明专利
    Cooling device for fluid, flight vehicle having the same, and cooling method for fluid 有权
    用于流体的冷却装置,具有其的飞行车辆和用于流体的冷却方法

    公开(公告)号:JP2012030776A

    公开(公告)日:2012-02-16

    申请号:JP2011022360

    申请日:2011-02-04

    Abstract: PROBLEM TO BE SOLVED: To provide a cooling device for fluid, capable of minimizing influences by external environments.SOLUTION: The cooling device includes: a heat exchanger configured such that fluid is introduced therein to be heat-exchanged with a refrigerant, and configured to vaporize the refrigerant by the heat exchange such that the fluid is discharged at temperature close to vaporization temperature of the refrigerant; a compressor connected to the heat exchanger and configured to compress the fluid discharged out of the heat exchanger; a turbine connected to the compressor and configured to expand the fluid compressed in the compressor to lower temperature of the compressed fluid; and a phase change heat exchanger connected to the turbine, storing a phase change material, and configured to cause heat exchange between the phase change material and the fluid discharged out of the turbine so as to control temperature of the discharged fluid.

    Abstract translation: 要解决的问题:提供一种能够最小化外界环境影响的流体冷却装置。 解决方案:冷却装置包括:热交换器,其构造成使得流体被引入其中以与制冷剂进行热交换,并且构造成通过热交换使制冷剂汽化,使得流体在接近蒸发的温度下排出 制冷剂的温度; 压缩机,其连接到所述热交换器并且构造成压缩从所述热交换器排出的流体; 涡轮机,连接到压缩机并且构造成将在压缩机中压缩的流体膨胀以降低压缩流体的温度; 以及相变热交换器,其连接到所述涡轮机,存储相变材料,并且被配置为在所述相变材料和从所述涡轮机排出的流体之间进行热交换,以控制排出的流体的温度。 版权所有(C)2012,JPO&INPIT

    Method for producing pitch for impregnating carbon-carbon composite material
    10.
    发明专利
    Method for producing pitch for impregnating carbon-carbon composite material 有权
    用于生产用于印制碳碳复合材料的沥青的方法

    公开(公告)号:JP2011168761A

    公开(公告)日:2011-09-01

    申请号:JP2010137986

    申请日:2010-06-17

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing pitch for impregnating a carbon-carbon composite material having low viscosity and an improved carbonation yield.
    SOLUTION: The method for producing pitch for impregnating a carbon-carbon composite material comprises the following steps: (i) a step for crushing coal-based pitch, (ii) a step for crushing and dissolving the crushed coal-based pitch with an alcoholic solvent and a cross-linking agent, (iii) a step for drying the crushed and dissolved mixture to remove the alcoholic solvent and (iv) a step for cooling and subsequently pulverizing the mixture from which the alcoholic solvent has been removed.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 待解决的问题:提供一种用于浸渍具有低粘度和提高的碳酸化收率的碳 - 碳复合材料的沥青的方法。 解决方案:用于浸渍碳 - 碳复合材料的沥青的制造方法包括以下步骤:(i)粉碎煤基沥青的步骤,(ii)将粉碎的煤基沥青粉碎和溶解的步骤 与醇溶剂和交联剂反应,(iii)干燥被粉碎和溶解的混合物以除去醇溶剂的步骤,和(iv)冷却并随后粉碎除去醇溶剂的混合物的步骤。 版权所有(C)2011,JPO&INPIT

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