Thermal insulation material layering defect test block, preparation calibration method and sensitivity test method

The invention relates to a thermal insulation material layering defect test block, a preparation calibration method and a sensitivity test method, belongs to the field of material detection, and solves the problem that a layering defect is difficult to accurately preset in an existing thermal insulation material in a forming process. The test block comprises a base body, one or more grooves are formed in the upper surface of the base body, each groove comprises an upper surface opening and a side face opening, and a base body cover plate matched with the base body is arranged on the upper surface of the base body; a plurality of grooves are formed in the base body cover plate, a plug matched with each groove is arranged in each groove, a plug cover plate is correspondingly arranged above each plug, the edge of the plug cover plate is overlapped with the upper surface of the base body cover plate, the plug cover plate is connected with the base body cover plate through a bolt, and an elastic gasket is arranged