公开(公告)号：US20170282424A1

公开(公告)日：2017-10-05

申请号：US15626473

申请日：2017-06-19

Applicant: BYD COMPANY LIMITED

Inventor： XIAO ZHANG ,  LETIAN TAO ,  JIAN SUN ,  LIANG CHEN

IPC: B29C45/14 ,  C23F1/38

CPC classification number: B29C45/14311 ,  B29C45/14778 ,  B29C2045/14868 ,  B29K2105/20 ,  B29K2705/08 ,  B29L2031/34 ,  B32B15/08 ,  B32B15/20 ,  C23F1/38 ,  C25D11/26

Abstract: The present disclosure provides a metal-resin composite and a method of preparing the same. The metal includes titanium or titanium alloy, the composite includes a metal substrate and a resin layer coated on at least a part of a surface of the metal substrate, recesses are distributed on the part of the surface of the metal substrate coated with the resin layer, a part of resin of the resin layer extends to fill in the recesses, and a concentration of an oxygen element on the surface of the metal substrate is greater than 1 wt %. The method includes dipping a metal substrate in an etching solution containing at least one alkali metal hydroxide so as to form recesses on the surface of the metal substrate, and injecting a resin onto the surface of the after-surface-treatment metal substrate to form a resin layer. The metal-resin composite of the present disclosure is suitable for a shell of an electronic product.