Surface treatment process for heat-resistant decorative strip of vehicle ventilating grill

The invention discloses a surface treatment process for a heat-resistant decorative strip of a vehicle ventilating grill, comprising the steps of carrying out bright nickel treatment on a plastic part subjected to semi-bright nickel plating, and then, carrying out nickel sealing after washing. In the semi-bright nickel plating process, the surface treatment time is within 6-12min, the temperature is 40-48 DEG C, the current density is 5+/-0.5A/dm , and pearl nickel has the concentration of 400-500g/L and the PH value of 4.5-5; in the bright nickel plating process, the surface treatment time is 8-12min, the temperature is 38-45 DEG C, the current density is 8+/-0.5A/dm , and the pearl nickel has the concentration of 430-500g/L and the PH value of 4.0-4.5; and in the nickel sealing process, the surface treatment time is within 2-5 min, the temperature is 45-50 DEG C, the current density is 1.8+/-0.5A/dm , and pearl nickel has the concentration of 360-430g/L and the PH value of 3.8-4.2. By using the surface trea