Deformation adapter and die for manufacturing deformation adapter

The utility model provides a deformation adapter and a mold for manufacturing the deformation adapter, relates to the technical field of solid rocket engine devices, and solves the technical problem that an outer shell deforms due to expansion deformation of a core mold framework in a high-temperature environment. The deformation adapter comprises an adapter body, the inner contour of the adapter body is matched with the outer contour of the core mold framework, the adapter body is arranged on the core mold framework in a sleeving mode and located between the core mold framework and the outer shell, and the adapter body is made of elastic materials and can deform and contract when the core mold framework expands at the high temperature so as to prevent the outer shell from deforming. When the outer shell and the core mold framework are cured at high temperature, the core mold framework is heated to expand and deform, the adapter body bears the pressure of the core mold framework at high temperature, can defor