Method for preparing work hardening insulation quilt for high temperature furnace

The invention relates to a method for preparing a work hardening insulation quilt for a high temperature furnace, which comprises the following steps of: 1, cutting, pre-impregnating and airing a soft quilt; 2, adhering the soft quilt by using an adhesive; 3, pressing and curing for forming; 4, performing carbonization treatment; 5, performing high temperature treatment; 6, machining; 7, performing coating treatment; and 8, performing chemical vapor deposition treatment and high temperature treatment, or directly performing high temperature treatment to obtain the work hardening insulation quilt for the high temperature furnace. The method has the advantages of simple technological process and suitability for mass production; and the prepared work hardening insulation quilt has the heat conductivity of less than or equal to 0.5W/m.K, the ash content of less than or equal to 2,000ppm, high mechanical properties and high-temperature dimensional stability and excellent processability, does not generate volatile matters when used in the high temperature furnace, cannot pollute the product, and has important significance for prolonging the service life of the insulation quilt in the high temperature furnace.