Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of carbon/carbon composite material brake disc
The invention relates to the field of brake disc preparation methods, in particular to a preparation method of a carbon/carbon composite material brake disc. The preparation method comprises the following steps: A, firstly, manufacturing a variable-density carbon fiber integral needled felt preform; b, cutting the prefabricated bodies into circular rings according to the specification requirement of the brake disc, loading the circular rings into a vapor deposition furnace, loading the circular ring prefabricated bodies of the same specification into the same stock column, and isolating the adjacent prefabricated bodies by using graphite backing rings; by adopting the variable-density carbon fiber preform and a method for controlling the temperature of a reaction gas inlet of an inner cavity of a stock column, directional chemical vapor deposition carburization of the carbon/carbon composite material brake disc is realized, the density consistency of a core part and a surface layer of the carbon/carbon composite material brake disc is ensured, and the overall density of the brake disc breaks through 1.82 g/cm < 3 >. The prepared carbon/carbon composite material brake disc has the advantages that the performance is greatly improved, the brake heat fading is obviously reduced, the production process is simple, the large-scale production is easy, the production efficiency is improved, and the cost is reduced.
本发明涉及刹车盘制备方法领域，尤其是碳/碳复合材料刹车盘的制备方法。该制备方法包括以下步骤：A、首先制作变密度的碳纤维整体针刺毡预制体；B、然后按刹车盘规格要求将预制体切割成圆环并装入气相沉积炉，同一规格的圆环预制体装在同一料柱中，相邻的预制体之间用石墨垫环隔离。该发明采用变密度碳纤维预制体及控制料柱内腔反应气体入口温度的方法，实现碳/碳复合材料刹车盘定向化学气相沉积渗碳，保证碳/碳复合材料刹车盘芯部和表层密度一致性，使刹车盘的整体密度突破了1.82g/㎝3。本发明制备的碳/碳复合材料刹车盘性能大幅提高，刹车热衰退显著降低，且生产工艺简单，易于规模化生产，提高了生产效率，降低了成本。
Preparation method of carbon/carbon composite material brake disc
The invention relates to the field of brake disc preparation methods, in particular to a preparation method of a carbon/carbon composite material brake disc. The preparation method comprises the following steps: A, firstly, manufacturing a variable-density carbon fiber integral needled felt preform; b, cutting the prefabricated bodies into circular rings according to the specification requirement of the brake disc, loading the circular rings into a vapor deposition furnace, loading the circular ring prefabricated bodies of the same specification into the same stock column, and isolating the adjacent prefabricated bodies by using graphite backing rings; by adopting the variable-density carbon fiber preform and a method for controlling the temperature of a reaction gas inlet of an inner cavity of a stock column, directional chemical vapor deposition carburization of the carbon/carbon composite material brake disc is realized, the density consistency of a core part and a surface layer of the carbon/carbon composite material brake disc is ensured, and the overall density of the brake disc breaks through 1.82 g/cm < 3 >. The prepared carbon/carbon composite material brake disc has the advantages that the performance is greatly improved, the brake heat fading is obviously reduced, the production process is simple, the large-scale production is easy, the production efficiency is improved, and the cost is reduced.
本发明涉及刹车盘制备方法领域，尤其是碳/碳复合材料刹车盘的制备方法。该制备方法包括以下步骤：A、首先制作变密度的碳纤维整体针刺毡预制体；B、然后按刹车盘规格要求将预制体切割成圆环并装入气相沉积炉，同一规格的圆环预制体装在同一料柱中，相邻的预制体之间用石墨垫环隔离。该发明采用变密度碳纤维预制体及控制料柱内腔反应气体入口温度的方法，实现碳/碳复合材料刹车盘定向化学气相沉积渗碳，保证碳/碳复合材料刹车盘芯部和表层密度一致性，使刹车盘的整体密度突破了1.82g/㎝3。本发明制备的碳/碳复合材料刹车盘性能大幅提高，刹车热衰退显著降低，且生产工艺简单，易于规模化生产，提高了生产效率，降低了成本。
Preparation method of carbon/carbon composite material brake disc
碳/碳复合材料刹车盘的制备方法
LOU JIANJUN (Autor:in) / YIN YANQI (Autor:in) / TANG ZUJUAN (Autor:in)
25.10.2022
Patent
Elektronische Ressource
Chinesisch
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