| 摘要 |
An automotive suspension coil spring (1) of any known shape and defined by a metal body wound into turns is provided on a lateral surface (2) with a coating (3) of polymeric material; the coating (3) being defined by a continuous 100 to 500 mu m thick layer of paint (4) formed from a polymeric material of 50 to 100 Shore A hardness. The paint from which the coating (3) is formed may be a thermoplastic, e.g. powdered, paint preferably selected from the group including: PVC, PU, PPA and mixtures thereof. In particular, the paint is selected from the following commercial products: Smaltoplast TM , Abcite TM , Plascoat PPA 571 TM , Desmopan TM . The coating (3) is preferably applied to the surface (2) of the turns with the spring (1) at a relatively high temperature (about 200 DIVIDED 250 DEG C), e.g. by immersing the spring (1) in a fluidized-bed bath containing the paint, and with no preliminary application of adhesion promoter. <IMAGE> |
