ROLLS OF WINDING EQUIPMENT IN HOT-ROLLING FACTORY
    51.
    发明申请
    ROLLS OF WINDING EQUIPMENT IN HOT-ROLLING FACTORY 审中-公开
    卷材厂的卷扬设备

    公开(公告)号:US20160256907A1

    公开(公告)日:2016-09-08

    申请号:US15035096

    申请日:2014-05-28

    发明人: Koichi SHIJO

    摘要: In rolls of winding equipment in a hot-rolling factory, each roll includes a lower cladding layer formed on the surface of the roll barrel and a self-fluxing alloy layer formed on the lower cladding layer by thermal spraying and containing carbide particles dispersed therein. The lower cladding layer includes an Fe-based cladding layer which has a Shore hardness of 60 or greater and which contains, in terms of mass %, 0.1-0.4 C, up to 2.0 Si, up to 3.0 Mn, 1.0-15.0 Cr, and 2.5-5.0 Ni. The lower cladding layer further contains one or more of Mo, V, and Co, the contents of Mo, V, and Co being 0.1-5.0 mass %, 0.1-3.0 mass %, and 0.5-5.0 mass %, respectively.

    摘要翻译: 在热轧厂的卷绕设备中,每个辊包括形成在辊筒表面上的下包层和通过热喷涂形成在下包层上并含有分散在其中的碳化物颗粒的自熔合金层。 下包层包括肖氏硬度为60以上的Fe系包层,以质量%计含有0.1〜0.4C,高达2.0Si,高达3.0Mn,1.0〜15.0.0Cr, 和2.5-5.0镍。 下包层还含有Mo,V和Co中的一种或多种,​​Mo,V和Co的含量分别为0.1-5.0质量%,0.1-3.0质量%和0.5-5.0质量%。

    Method for forming an improved thermal barrier coating (TBC), thermal-barrier-coated article and method for the repair thereof
    53.
    发明授权
    Method for forming an improved thermal barrier coating (TBC), thermal-barrier-coated article and method for the repair thereof 有权
    用于形成改进的热障涂层(TBC),热障涂层制品及其修复方法的方法

    公开(公告)号:US09429035B2

    公开(公告)日:2016-08-30

    申请号:US14237255

    申请日:2012-08-03

    摘要: The invention refers to a process for the formation of a thermal barrier coating on a substrate, comprising the steps of: a) applying a bond coat on the substrate; b) subjecting the bond coat to a low activity aluminizing process, thus obtaining, above the bond coat, a temporary intermediate diffusion layer; c) applying, on the temporary intermediate diffusion layer, aluminum powder in suspension with a solvent or aqueous base, said aluminum powder having size distribution from 15 to 150 μm; d) performing a thermal treatment in a vacuum at a pressure from 10−3 to 10−5 bars, at a temperature from 800° C. to 1050° C. and with an active phase having duration in the range of 60 minutes to 4 hours, thus obtaining above the bond coat an enriched intermediate diffusion layer; and e) applying a definitive barrier layer on said enriched intermediate diffusion layer.

    摘要翻译: 本发明涉及在衬底上形成热障涂层的方法,包括以下步骤:a)在衬底上施加粘合涂层; b)使接合涂层进行低活性镀铝处理,从而在粘结涂层上获得临时中间扩散层; c)在临时中间扩散层上涂覆悬浮液中的铝粉末与溶剂或碱水溶液,所述铝粉末的尺寸分布为15至150μm; d)在10-3至10-5巴的压力下,在800℃至1050℃的温度下进行真空中的热处理,并且活性相的持续时间为60分钟至4分钟 小时,从而在粘结层上方获得富集的中间扩散层; 以及e)在所述富集的中间扩散层上施加确定的阻挡层。

    CARBON-BASED BARRIER COATINGS FOR HIGH-TEMPERATURE POLYMER-MATRIX COMPOSITES
    57.
    发明申请
    CARBON-BASED BARRIER COATINGS FOR HIGH-TEMPERATURE POLYMER-MATRIX COMPOSITES 审中-公开
    用于高温聚合物 - 基复合材料的碳基阻挡涂层

    公开(公告)号:US20160138156A1

    公开(公告)日:2016-05-19

    申请号:US14543948

    申请日:2014-11-18

    摘要: A high-temperature polymeric-matrix composite (HTPMC) structure and a method for protecting an HTPMC from exposure to high temperatures in the presence of air, and prevent thermo-oxidative degradation. A thin, lightweight layer of a carbon-based barrier is applied onto a surface of the HTPMC structure. The carbon-based barrier coating is composed of graphene, amorphous carbon, or a mixture comprising a combination of graphene and amorphous carbon, and has coefficient of thermal expansion that is less than 10 times the coefficient of thermal expansion of the HTPMC structure. The carbon-based barrier may be coated with an erosion-barrier.

    摘要翻译: 高温聚合物基复合材料(HTPMC)结构以及在空气存在下保护HTPMC免受高温暴露并防止热氧化降解的方法。 在HTPMC结构的表面上施加薄的,轻质的碳基阻挡层。 碳基阻挡涂层由石墨烯,无定形碳或包含石墨烯和无定形碳的组合的混合物组成,并且具有小于HTPMC结构的热膨胀系数的10倍的热膨胀系数。 碳基阻挡层可以被涂覆有侵蚀屏障。

    Steel Part and Method for Manufacturing the Same
    58.
    发明申请
    Steel Part and Method for Manufacturing the Same 审中-公开
    钢制零件及其制造方法

    公开(公告)号:US20160138151A1

    公开(公告)日:2016-05-19

    申请号:US14897113

    申请日:2013-06-10

    申请人: HITACHI, LTD.

    IPC分类号: C23C8/66 C23C28/04 C23C4/06

    摘要: A plurality of layers are laminated on at least part of the member under treatment made of steel, the plurality of layers having carbon concentrations higher than that of the member under treatment and 1.0 wt. % or less, the carbon concentration of an outermost layer of the plurality of layers being the highest. A method for manufacturing a steel part, including spraying powder containing carbon on at least part of an member under treatment made of steel so as to form a first layer having a carbon concentration higher than that of the member under treatment and spraying powder containing carbon on at least part of the first layer so as to form a second layer having a carbon concentration higher than that of the first layer. Carbon concentrations of a plurality of layers including the first layer and the second layer are 1.0 wt. % or less.

    摘要翻译: 在由钢制成的处理部件的至少一部分上层叠多个层,多个层的碳浓度高于处理部件的碳浓度,1.0重量% %以下,多层的最外层的碳浓度最高。 一种钢部件的制造方法,其特征在于,在由钢制成的处理部件的至少一部分上喷涂含有碳的粉末,形成碳浓度高于所述处理部件的碳浓度的第一层,并且喷涂含有碳的粉末 至少部分第一层,以便形成碳浓度高于第一层的第二层。 包括第一层和第二层的多个层的碳浓度为1.0重量%。 % 或更少。

    Nitrided Engine Valve with HVOF Coating
    60.
    发明申请
    Nitrided Engine Valve with HVOF Coating 审中-公开
    带HVOF涂层的氮化发动机阀门

    公开(公告)号:US20160097459A1

    公开(公告)日:2016-04-07

    申请号:US14507765

    申请日:2014-10-06

    申请人: Caterpillar Inc.

    摘要: A valve for use in an internal combustion engine is disclosed. The valve includes a stem connected to a fillet disposed between the stem and a seat face. A thermal spray technique, such as a high velocity oxy fuel coating spray (HVOF) is applied to the seat face. A nitriding treatment that includes a nitrogen source, which may or may not contain carbon, and heat may be applied after the HVOF spray. The heat allows the nitrogen and/or carbon to penetrate the HVOF layer and the seat face to form a compound zone. The compound zone enhances the wear resistance of the surface during engine operation.

    摘要翻译: 公开了一种用于内燃机的阀。 阀包括连接到设置在杆和座面之间的圆角的杆。 将热喷涂技术,例如高速氧燃料喷涂(HVOF)施加到座面上。 在HVOF喷涂之后,可以施加包括可能含有或可以不含碳的氮源和热的氮化处理。 热量允许氮和/或碳穿透HVOF层和座面以形成复合区。 复合区域在发动机运行期间增强了表面的耐磨性。