ADAPTOR ELEMENT OF DIFFERENT MATERIALS AND METHOD TO MAKE THE SAME Russian patent published in 1995 - IPC

FIELD: joining pieces of different materials. SUBSTANCE: adaptor element has tube 1 of composite material, internal metal part 2, intermediate metal sleeve 3, outer holding metal part 4. Intermediate metal sleeve 3 is made of a material with linear expansion coefficient higher than that of materials for the pipe and parts. The method lies in subsequent installation of metal part, pipe of composite material, intermediate sleeve and outer metal part. First glue is applied on surfaces being in contact. Resulting from cold plastic deformation, on assembling the parts, metal of intermediate sleeve fills grooves in pipe 1 and grooves on internal part 2 providing reliable joint along surfaces in contact. EFFECT: reliable joint. 3 cl, 6 dwg