Method for controlling thickness of carbon layer of thermal insulation layer of diffusion section of spray pipe

The invention relates to the technical field of space flight and aviation, in particular to a nozzle diffusion section heat insulation layer carbon layer thickness control method. The spraying pipe diffusion section heat insulation layer carbon layer thickness control method comprises the steps that an initial heat insulation layer blank of a spraying pipe diffusion section is wound to a winding mold for winding forming; selecting a to-be-formed part of the initial heat insulation layer blank; fixing the forming skin to the surface of the to-be-formed part; putting the winding mold provided with the initial heat insulation layer blank and the formed skin into a vacuum rubber sleeve, vacuumizing and curing to form a target heat insulation layer blank; and carrying out finish machining on the target heat insulation layer blank to obtain the spray pipe diffusion section heat insulation layer. According to the nozzle diffusion section heat insulation layer carbon layer thickness control method provided by the emb