Preparation method of corrosion-resistant black chromium-plated automobile exterior trimming part

• Main Authors: HOU CAILING, LUO LIN, FU XIANGLIN, CUI MINXIN, LIU PANPAN
• Format: Patent
• Language: Chinese; English
• Published: 21.03.2023
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CLEANING; CLEANING IN GENERAL; PERFORMING OPERATIONS; PREVENTION OF FOULING IN GENERAL; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

The invention belongs to the technical field of automobile exterior trimming parts, and particularly relates to a preparation method of a corrosion-resistant black-chromium-plated automobile exterior trimming part, which comprises the steps of chromium-plated workpiece pretreatment, electrostatic dust collection, primer spraying, finish paint spraying and baking cooling, specifically, primer and finish paint are sprayed on the surface of a trivalent black-chromium automobile exterior trimming part, and a hardening agent and a diluent are added, so that the corrosion-resistant black-chromium-plated automobile exterior trimming part is obtained. And the preparation method is simple and efficient, and is suitable for industrial large-scale production and application. 本发明属于汽车外饰技术领域，具体涉及一种耐腐蚀镀黑铬汽车外饰件的制备方法，包括镀铬工件前处理、静电除尘、喷涂底漆、喷涂面漆、烘烤冷却，通过在三价黑铬汽车外饰件表面喷涂底漆和面漆，并加入硬化剂和稀释剂，有效提高了外饰件的耐腐蚀性能，制备方法简单高效，适宜工业化大规模生产应用。