Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-strength brake disc blank disc and preparation method of carbon-ceramic brake disc
The invention belongs to the technical field of carbon-ceramic brake discs, and particularly relates to a preparation method of a high-strength brake disc blank disc, in particular to a preparation method of a carbon-ceramic brake disc. The preparation method comprises the following steps: mixing chopped carbon fibers, a dispersing agent and water to obtain chopped carbon fiber slurry; the preparation method comprises the following steps: carrying out pressure filtration molding, coating the surface of an obtained circular ring net placenta with a resin diluted solution, placing the coated circular ring net placenta in a circular ring mold, carrying out hot pressing, carrying out carbonization on an obtained mold pressing net placenta, carrying out carbon densification by adopting chemical vapor deposition to obtain a C/C preform, and carrying out graphitization treatment on the C/C preform. The brake disc blank obtained from the pure net tire is high in strength, uniform in density and stable in friction coefficient. Meanwhile, the circular-ring-shaped net placenta is directly obtained through filter pressing forming, the subsequent cutting procedure can be omitted, the preparation process efficiency can be improved, raw materials can be effectively saved, and finally, a mold pressing mold is adopted for hot pressing, so that the density uniformity in the net placenta is further improved.
本发明属于碳陶制动盘技术领域，具体涉及一种高强度制动盘坯盘的制备方法、一种碳陶制动盘的制备方法。本发明将短切碳纤维丝、分散剂和水混合，所得短切碳纤维丝浆料；进行压滤成型，将所得圆环网胎盘的表面涂覆树脂稀释溶液，得到涂覆后圆环网胎盘置于圆环模具中进行热压，所得模压网胎盘进行碳化、采用化学气相沉积进行碳致密化，得到C/C预制体后进行石墨化处理。本发明由纯网胎得到的制动盘坯盘强度高，密度均匀，摩擦系数稳定。同时，本发明采用压滤成型直接得到圆环形状的网胎盘，能够省略后续的裁切工序，提高制备工艺效率，还能有效节约原材料，最后，本发明采用模压模具进行热压，进一步提高了网胎盘内部密度均匀性。
Preparation method of high-strength brake disc blank disc and preparation method of carbon-ceramic brake disc
The invention belongs to the technical field of carbon-ceramic brake discs, and particularly relates to a preparation method of a high-strength brake disc blank disc, in particular to a preparation method of a carbon-ceramic brake disc. The preparation method comprises the following steps: mixing chopped carbon fibers, a dispersing agent and water to obtain chopped carbon fiber slurry; the preparation method comprises the following steps: carrying out pressure filtration molding, coating the surface of an obtained circular ring net placenta with a resin diluted solution, placing the coated circular ring net placenta in a circular ring mold, carrying out hot pressing, carrying out carbonization on an obtained mold pressing net placenta, carrying out carbon densification by adopting chemical vapor deposition to obtain a C/C preform, and carrying out graphitization treatment on the C/C preform. The brake disc blank obtained from the pure net tire is high in strength, uniform in density and stable in friction coefficient. Meanwhile, the circular-ring-shaped net placenta is directly obtained through filter pressing forming, the subsequent cutting procedure can be omitted, the preparation process efficiency can be improved, raw materials can be effectively saved, and finally, a mold pressing mold is adopted for hot pressing, so that the density uniformity in the net placenta is further improved.
本发明属于碳陶制动盘技术领域，具体涉及一种高强度制动盘坯盘的制备方法、一种碳陶制动盘的制备方法。本发明将短切碳纤维丝、分散剂和水混合，所得短切碳纤维丝浆料；进行压滤成型，将所得圆环网胎盘的表面涂覆树脂稀释溶液，得到涂覆后圆环网胎盘置于圆环模具中进行热压，所得模压网胎盘进行碳化、采用化学气相沉积进行碳致密化，得到C/C预制体后进行石墨化处理。本发明由纯网胎得到的制动盘坯盘强度高，密度均匀，摩擦系数稳定。同时，本发明采用压滤成型直接得到圆环形状的网胎盘，能够省略后续的裁切工序，提高制备工艺效率，还能有效节约原材料，最后，本发明采用模压模具进行热压，进一步提高了网胎盘内部密度均匀性。
Preparation method of high-strength brake disc blank disc and preparation method of carbon-ceramic brake disc
一种高强度制动盘坯盘的制备方法、一种碳陶制动盘的制备方法
LUO JUN (Autor:in) / LAI ZHENPING (Autor:in) / LI ZHAOSHENG (Autor:in)
12.07.2024
Patent
Elektronische Ressource
Chinesisch
Preparation method of carbon-carbon blank for carbon-ceramic brake disc
| Europäisches Patentamt | 2021
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