Manufacturing method of low-cost binary carbon matrix airplane carbon brake disc

The invention discloses a manufacturing method of a low-cost binary carbon matrix aircraft carbon brake disc. The method comprises the following steps: 1, carrying out high-temperature pretreatment ona needled weftless carbon cloth integral carbon disc prefabricated body; 2, carrying out isothermal vapor deposition on the needled weftless carbon cloth integral carbon disc prefabricated body subjected to high-temperature pretreatment to obtain a pyrolytic carbon matrix with a rough layer structure; 3, performing resin impregnation-carbonization densification treatment on the pyrolytic carbon matrix to obtain a binary carbon matrix containing resin carbon; and 4, carrying out high-temperature graphitization treatment on the binary carbon matrix to obtain the binary carbon matrix airplane carbon brake disc. According to the invention, isothermal vapor deposition is carried out by using carbon source gas mainly comprising natural gas; the characteristics of small natural gas molecules, large permeation depth and