The invention discloses a
processing technology for a lubricating wear-resistant
coating of a bearing bush of an engine. The
processing technology comprises the steps of (1) pretreatment, wherein thesurface of the bearing bush is cleaned, after
sand blasting treatment, the bearing bush is placed in a
passivation pond for
passivation treatment, and after
passivation, the bearing bush is cleaned and dried; (2) pre-heating treatment, wherein after pretreatment, the bearing bush is placed in a
drying oven and hated to 40-60 DEG C, and the temperature is preserved for 10-30 min; (3) spraying treatment, wherein the bearing bush is taken from the
drying oven, and
thermal spraying is conducted on the surface of the bearing bush by adopting the wear-resistant lubricating
coating; (4) solidifying treatment, wherein the bearing bush is placed in the
drying oven and heated to 120-160 DEG C for solidifying, and the solidifying time is 20-30 min; (5) packaging checking. According to the processingtechnology, a spraying mode is adopted for replacing a bearing bush
electroplating mode, the
environmentally friendly problem is solved, and the production cost is reduced; the processed lubricating wear-resistant
coating of the bearing bush of the engine greatly improves the running reliability of the bearing bush of the engine, and the service life is long.