关键词: CFRP；胶粘螺母；胶接工艺；B 柱加强板

Abstract: In order to verify the connection reliability of adhesive nuts on carbon fiber reinforced plastics (CFRP), the curing rate and sensitivity to adhesive surface treatment requirements of polyacrylate (PA) and polyurethane (PU) structural adhesives are studied and compared, it is found that PA structural adhesive has better construction technology performance. Then, two kinds of adhesive nuts, M6 and M8, on the stiffener plate in B column, are taken as the research objects, and PA structural adhesive is used to make samples, the installation reliability of adhesive nuts and their performance after electrophoresis baking are investigated by testing the failure torque and transverse vibration axial force of adhesive nuts. The test results show that the connection performance of adhesive nuts meet the design requirements of products. This study fully demonstrates the connection reliability of carbon fiber composite adhesive nuts, and the design of the adhesive nut connection process has practical guidance significance for the application of carbon fiber composite materials in body.

Key words: CFRP; Adhesive nuts; Bonding technology; B-pillar reinforced panel