Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Carbon-carbon crucible for melting siliconizing of carbon-ceramic brake disc and preparation method of carbon-carbon crucible
The invention belongs to the technical field of ultrahigh-temperature composite materials, and relates to a carbon-carbon crucible for melting siliconizing of a carbon-ceramic brake disc and a preparation method of the carbon-carbon crucible, and the preparation method comprises the following steps: S1, alternately paving a layer of long-fiber weftless carbon cloth and a layer of short-fiber net tire to form a composite layer as raw materials of the carbon-carbon crucible; s2, needling the multiple composite layers in a three-dimensional needling weaving mode to form a carbon fiber preform; s3, the carbon fiber preform is placed in a high-temperature furnace to be subjected to chemical vapor deposition twice and densification twice, and a high-density carbon-carbon crucible preform is prepared; s4, high-temperature graphitization heat treatment is carried out, the graphitization degree of the carbon-carbon crucible is increased, and the overall structure and performance stability of the crucible are improved; and S5, machining treatment forming is conducted. The carbon-carbon crucible obtained by the method disclosed by the invention has the mechanical properties of high density, excellent bending strength, compressive strength, interlaminar shear strength, impact toughness, tensile strength and the like.
本发明属于超高温复合材料技术领域，涉及一种用于碳陶刹车盘熔融渗硅的碳碳坩埚及制备方法，其中制备方法包括：S1、碳碳坩埚原材料采用一层长纤维无纬碳布，一层短纤维网胎的方式交替铺层形成复合层；S2、采用三维针刺编织方式将多个复合层针刺形成碳纤维预制体；S3、将碳纤维预制体置于高温炉中进行两次化学气相沉积两次增密方式，制得高密度的碳碳坩埚预制体；S4、进行高温石墨化热处理，增加碳碳坩埚的石墨化度，提高坩埚整体结构与性能稳定性；S5、进行机加工处理成型。本发明方法获得的碳碳坩埚具有高密度，优良的抗弯强度、抗压强度、层间剪切强度、冲击韧性、抗拉强度等力学性能。
Carbon-carbon crucible for melting siliconizing of carbon-ceramic brake disc and preparation method of carbon-carbon crucible
The invention belongs to the technical field of ultrahigh-temperature composite materials, and relates to a carbon-carbon crucible for melting siliconizing of a carbon-ceramic brake disc and a preparation method of the carbon-carbon crucible, and the preparation method comprises the following steps: S1, alternately paving a layer of long-fiber weftless carbon cloth and a layer of short-fiber net tire to form a composite layer as raw materials of the carbon-carbon crucible; s2, needling the multiple composite layers in a three-dimensional needling weaving mode to form a carbon fiber preform; s3, the carbon fiber preform is placed in a high-temperature furnace to be subjected to chemical vapor deposition twice and densification twice, and a high-density carbon-carbon crucible preform is prepared; s4, high-temperature graphitization heat treatment is carried out, the graphitization degree of the carbon-carbon crucible is increased, and the overall structure and performance stability of the crucible are improved; and S5, machining treatment forming is conducted. The carbon-carbon crucible obtained by the method disclosed by the invention has the mechanical properties of high density, excellent bending strength, compressive strength, interlaminar shear strength, impact toughness, tensile strength and the like.
本发明属于超高温复合材料技术领域，涉及一种用于碳陶刹车盘熔融渗硅的碳碳坩埚及制备方法，其中制备方法包括：S1、碳碳坩埚原材料采用一层长纤维无纬碳布，一层短纤维网胎的方式交替铺层形成复合层；S2、采用三维针刺编织方式将多个复合层针刺形成碳纤维预制体；S3、将碳纤维预制体置于高温炉中进行两次化学气相沉积两次增密方式，制得高密度的碳碳坩埚预制体；S4、进行高温石墨化热处理，增加碳碳坩埚的石墨化度，提高坩埚整体结构与性能稳定性；S5、进行机加工处理成型。本发明方法获得的碳碳坩埚具有高密度，优良的抗弯强度、抗压强度、层间剪切强度、冲击韧性、抗拉强度等力学性能。
Carbon-carbon crucible for melting siliconizing of carbon-ceramic brake disc and preparation method of carbon-carbon crucible
一种用于碳陶刹车盘熔融渗硅的碳碳坩埚及制备方法
LIU RUQIANG (Autor:in) / LIU ZHIKAI (Autor:in) / LI DENGCHAO (Autor:in) / SHI YANQING (Autor:in)
29.11.2024
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2024
Carbon ceramic brake disc melting siliconizing device and method
| Europäisches Patentamt | 2024
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