Structural element, especially an outlet valve

摘要

The invention relates to a structural element, especially an outlet valve for internal-combustion engines, on which extremely stringent and extremely varied requirements are placed from the mechanical and/or thermal and/or chemical point of view, which structural element consists of at least two metals or metal alloys which are formed jointly, the outer jacket consisting, for example, of a material having high mechanical strength and the inner filling consisting of a material having high thermal conductivity.