Patents Assigned to Beijing Institute of Aeronautical Materials
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Patent number: 11952666Abstract: A method for producing an abrasion-resistant coating on the inner wall of an aluminum alloy workpiece is provide. The steps include mixing a graphene powder and Al powder to obtain a mixed powder; combining and heating the mixed power with a polyvinyl alcohol (PVA) liquid, and performing spray granulation to obtain a low-temperature self-propagating composite; stirring a slurry comprising the low-temperature self-propagating composite and sodium silicate; injecting the slurry into a cylindrical inner cavity of an aluminum alloy workpiece mounted on a horizontal rotary table for rotation, the aluminum alloy workpiece is heated with the rotation at a second temperature of 80-100° C. so that the slurry is uniformly solidified on the cylindrical inner surface of the cylindrical inner cavity; and burning the slurry, after the slurry is uniformly solidified and while the rotation is maintained, with an oxyacetylene flame to form the wear-resistant coating.Type: GrantFiled: June 17, 2020Date of Patent: April 9, 2024Assignee: AECC BEIJING INSTITUTE OF AERONAUTICAL MATERIALSInventors: Haoliang Tian, Yang Yu, Changliang Wang, Mengqiu Guo, Zimin Zhou, Zhihui Tang, Ang Zhang, Yongjing Cui, Tianying Wang, Junguo Gao
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Patent number: 11549169Abstract: A method for preparing a thermal barrier coating (TBC) material includes: spraying a metal mixture onto a surface of an alloy using supersonic flame spraying or explosive spraying to form a bottom layer; spraying an yttria-stabilized zirconia (YSZ) precursor sol onto the bottom layer using liquid plasma spraying to form an intermediate layer; and spraying a ceramic composite including SiO2 and La—Ce—Zr—O using plasma spraying or explosive spraying to form a surface layer.Type: GrantFiled: June 17, 2020Date of Patent: January 10, 2023Assignee: AECC BEIJING INSTITUTE OF AERONAUTICAL MATERIALSInventors: Mengqiu Guo, Haoliang Tian, Changliang Wang, Zhihui Tang, Yang Yu, Yongjing Cui, Junguo Gao, Zimin Zhou, Tianying Wang, Ang Zhang
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Publication number: 20220118654Abstract: A resin matrix composite used as anti-ablation coating material and its preparation method is provided. The resin matrix composite is a mixture of yttria-stabilized zirconia (YSZ), a resin, Cu, and SiO2. The mixture is uniform and include spherical particles or spherical aggregates. A method for preparing a resin matrix composite for anti-ablation coating includes mixing YSZ, a resin, Cu, and SiO2 to obtain a mixed powder and performing spray granulation of the mixed powder to obtain a resin matrix composite including spherical particles or spherical agglomerates.Type: ApplicationFiled: June 17, 2020Publication date: April 21, 2022Applicant: AECC BEIJING INSTITUTE OF AERONAUTICAL MATERIALSInventors: Haoliang Tian, Jie Pang, Changliang Wang, Mengqiu Guo, Huanhuan Zhang, Junguo Gao, Yang Yu, Zhihui Tang, Yongjing Cui
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Publication number: 20220106675Abstract: A method for preparing a thermal barrier coating (TBC) material includes: spraying a metal mixture onto a surface of an alloy using supersonic flame spraying or explosive spraying to form a bottom layer; spraying an yttria-stabilized zirconia (YSZ) precursor sol onto the bottom layer using liquid plasma spraying to form an intermediate layer; and spraying a ceramic composite including SiO2 and La—Ce—Zr—O using plasma spraying or explosive spraying to form a surface layer.Type: ApplicationFiled: June 17, 2020Publication date: April 7, 2022Applicant: AECC BEIJING INSTITUTE OF AERONAUTICAL MATERIALSInventors: Mengqiu Guo, Haoliang Tian, Changliang Wang, Zhihui Tang, Yang Yu, Yongjing Cui, Junguo Gao, Zimin Zhou, Tianying Wang, Ang Zhang
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Publication number: 20210388506Abstract: A method for producing an abrasion-resistant coating on the inner wall of an aluminum alloy workpiece is provide. The steps include mixing a graphene powder and Al powder to obtain a mixed powder; combining and heating the mixed power with a polyvinyl alcohol (PVA) liquid, and performing spray granulation to obtain a low-temperature self-propagating composite; stirring a slurry comprising the low-temperature self-propagating composite and sodium silicate; injecting the slurry into a cylindrical inner cavity of an aluminum alloy workpiece mounted on a horizontal rotary table for rotation, the aluminum alloy workpiece is heated with the rotation at a second temperature of 80-100° C. so that the slurry is uniformly solidified on the cylindrical inner surface of the cylindrical inner cavity; and burning the slurry, after the slurry is uniformly solidified and while the rotation is maintained, with an oxyacetylene flame to form the wear-resistant coating.Type: ApplicationFiled: June 17, 2020Publication date: December 16, 2021Applicant: AECC BEIJING INSTITUTE OF AERONAUTICAL MATERIALSInventors: Haoliang Tian, Yang Yu, Changliang Wang, Mengqiu Guo, Zimin Zhou, Zhihui Tang, Ang Zhang, Yongjing Cui, Tianying Wang, Junguo Gao
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Patent number: 10926331Abstract: A method of reinforcing a metallic material includes adding graphene to an alcohol solution; subjecting the alcohol solution containing graphene to sonication; mixing a metal powder with the alcohol solution containing graphene; milling the metal powder and alcohol solution containing graphene mixture; drying the metal powder and alcohol solution containing graphene mixture to form a composite powder; subjecting the composite powder to a densification process followed by a hot isostatic pressing treatment to form a composite material; and molding the composite material by hot extrusion.Type: GrantFiled: September 30, 2016Date of Patent: February 23, 2021Assignee: AVIC BEIJING INSTITUTE OF AERONAUTICAL MATERIALSInventors: Shaojiu Yan, Cheng Yang, Qihu Hong, Dabo Liu, Shenglong Dai, Zuoming Lin
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Patent number: 9933036Abstract: A damping rubber spring for an automobile suspension, including: n rubber layers (2), n being a natural number not less than 3; n+1 metal partition layers (1) including an upper partition layer (4) and a lower partition layer (5), the n rubber layers (2) and the n+1 metal partition layers (1) being laminated alternately with each other, and the upper partition layer (4) being disposed in parallel with the lower partition layer (5), wherein an m-th rubber layer (2) starting from the upper partition layer (4) has a thickness or cross section area that is the same as that of an m-th rubber layer (2) starting from the lower partition layer (5).Type: GrantFiled: August 28, 2013Date of Patent: April 3, 2018Assignee: AVIC BEIJING INSTITUTE OF AERONAUTICAL MATERIALSInventors: Gaosheng Chen, Honggang Jiang, Gaolin Pei, Liangqing Lai, Chunchao Tu, Zhian Mi, Jia Liu, Jinghe Wang, Zhengtao Su
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Patent number: 9878528Abstract: A method for preparing a graphene/metal composite sheet includes adding polyvinyl alcohol into distilled water and heat to about 100° C. under stirring to prepare a polyvinyl alcohol solution; dispersing graphene in distilled water using ultrasonication to prepare a graphene solution; mixing the polyvinyl alcohol solution and the graphene solution to form a graphene/polyvinyl alcohol mixed slurry; after a metal sheet is subjected to a surface activation treatment, coating the graphene/polyvinyl alcohol mixed slurry onto the metal sheet at both upper and lower surfaces; vacuum sintering to remove the polyvinyl alcohol in the surface coating to obtain a graphene/metal plate; overlaying at least two graphene/metal plates and bonding them together via hot isostatic pressing to form multilayer graphene/metal plates; and hot rolling the bonded multilayer graphene/metal plates to form the graphene/metal composite sheet.Type: GrantFiled: September 30, 2016Date of Patent: January 30, 2018Assignee: AVIC BEIJING INSTITUTE OF AERONAUTICAL MATERIALSInventors: Shaojiu Yan, Cheng Yang, Qihu Hong, Dabo Liu, Shenglong Dai, Zuoming Lin
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Publication number: 20170015092Abstract: A method for preparing a graphene/metal composite sheet includes adding polyvinyl alcohol into distilled water and heat to about 100° C. under stirring to prepare a polyvinyl alcohol solution; dispersing graphene in distilled water using ultrasonication to prepare a graphene solution; mixing the polyvinyl alcohol solution and the graphene solution to form a graphene/polyvinyl alcohol mixed slurry; after a metal sheet is subjected to a surface activation treatment, coating the graphene/polyvinyl alcohol mixed slurry onto the metal sheet at both upper and lower surfaces; vacuum sintering to remove the polyvinyl alcohol in the surface coating to obtain a graphene/metal plate; overlaying at least two graphene/metal plates and bonding them together via hot isostatic pressing to form multilayer graphene/metal plates; and hot rolling the bonded multilayer graphene/metal plates to form the graphene/metal composite sheet.Type: ApplicationFiled: September 30, 2016Publication date: January 19, 2017Applicant: AVIC BEIJING INSTITUTE OF AERONAUTICAL MATERIALSInventors: Shaojiu Yan, Cheng Yang, Qihu Hong, Dabo Liu, Shenglong Dai, Zuoming Lin
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Publication number: 20170014908Abstract: A method of reinforcing a metallic material includes adding graphene to an alcohol solution; subjecting the alcohol solution containing graphene to sonication; mixing a metal powder with the alcohol solution containing graphene; milling the metal powder and alcohol solution containing graphene mixture; drying the metal powder and alcohol solution containing graphene mixture to form a composite powder; subjecting the composite powder to a densification process followed by a hot isostatic pressing treatment to form a composite material; and molding the composite material by hot extrusion.Type: ApplicationFiled: September 30, 2016Publication date: January 19, 2017Applicant: AVIC BEIJING INSTITUTE OF AERONAUTICAL MATERIALSInventors: Shaojiu Yan, Cheng Yang, Qihu Hong, Dabo Liu, Shenglong Dai, Zuoming Lin
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Patent number: 9499022Abstract: An auxiliary rubber spring for an automobile suspension, comprising: N layers of metal partitions, N being an integer greater than or equal to 1, and a transverse section of each metal partition being arc-shaped; N+1 rubber layers, the rubber layers being alternately lapped with the metal partitions, and a transversal section of each rubber layer being arc-shaped; a supporting plate provided with a first convex arc surface on one side thereof, the first convex arc surface being bonded to a first concave arc surface of an outermost rubber layer; and a connecting plate provided with a second concave arc surface on one thereof, the second concave arc surface being bonded to a second convex arc surface of another outermost rubber layer. The auxiliary rubber spring for an automobile suspension according to the present invention may increase fatigue resistance of the rubber spring and effectively extend service life thereof.Type: GrantFiled: August 28, 2013Date of Patent: November 22, 2016Assignee: AVIC BEIJING INSTITUTE OF AERONAUTICAL MATERIALSInventors: Gaolin Pei, Liangqing Lai, Gaosheng Chen, Honggang Jiang, Chunchao Tu, Zhian Mi, Jia Liu, Jinghe Wang, Zhengtao Su
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Publication number: 20150226280Abstract: A damping rubber spring for an automobile suspension, including: n rubber layers (2), n being a natural number not less than 3; n+1 metal partition layers (1) including an upper partition layer (4) and a lower partition layer (5), the n rubber layers (2) and the n+1 metal partition layers (1) being laminated alternately with each other, and the upper partition layer (4) being disposed in parallel with the lower partition layer (5), wherein an m-th rubber layer (2) starting from the upper partition layer (4) has a thickness or cross section area that is the same as that of an m-th rubber layer (2) starting from the lower partition layer (5).Type: ApplicationFiled: August 28, 2013Publication date: August 13, 2015Applicant: AVIC BEIJING INSTITUTE OF AERONAUTICAL MATERIALSInventors: Gaosheng Chen, Honggang Jiang, Gaolin Pei, Liangqing Lai, Chunchao Tu, Zhian Mi, Jia Liu, Jinghe Wang, Zhengtao Su
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Publication number: 20110014834Abstract: The present invention is in the field of composite material manufacturing technology, and relates to a prefabricated fabric for liquid molding composite material and a preparation method thereof. The prefabricated fabric comprises a basal fiber fabric, which is characterized in that one or two surface(s) of the basal fiber fabric is(are) conglutinated with a toughening layer. The method for preparing the prefabricated fabric comprises the steps of conglutination of toughening layer, and conglutination of tackifying layer. The prefabricated fabric has both the interlaminar selective toughening and tackifying functions, and realizes the high toughness modification of the composite material while keeping the composite material liquid molding processibility and the good tackifying performance.Type: ApplicationFiled: July 15, 2009Publication date: January 20, 2011Applicant: Beijing Institute of Aeronautical Materials, AVIC IInventors: Xiaosu Yi, Xuefeng An, Ming Zhang
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Patent number: 6251036Abstract: A carbon fiber arrow shaft comprises a hollow tube, a reinforced carbon fiber, and a resinoid binder. The hollow tube has a length between 500-900 mm, an inner diameter between 2-10 mm, and a tube wall thickness between 0.3-2 mm. The reinforced carbon fiber and the resinoid binder form a resin-impregnated carbon fiber. The carbon fiber arrow shaft is formed by directly and continuously winding the resin-impregnated carbon fiber around the hollow tube. The carbon fiber arrow shaft has a head section (L1), a middle section (L2) and a tail section (L3). A winding angle of the carbon fiber at the head section (L1) is changed from a larger winding angle to a smaller winding angle, a winding angle at the middle section (L2) stays constant, and a winding angle at the tail section (L3) is changed from a smaller winding angle to a larger winding angle. The lengths of the head section (L1) and the tail section (L3) are between 25-250 mm.Type: GrantFiled: March 1, 2000Date of Patent: June 26, 2001Assignee: Beijing Institute of Aeronautical MaterialsInventors: Xiang Wu, Qingzhu Mao, Wenhao Chen, Dahai Sun, Minyong Liu, Weifang Chen