阅读说明：本技术 钝化剂、金属工件及其表面钝化方法 (Passivating agent, metal workpiece and surface passivation method thereof ) 是由 刘国平 于 2017-07-03 设计创作，主要内容包括：一种钝化剂、金属工件及其表面钝化方法,以1000重量份计,该钝化剂包括按照重量份数配比的下列成分：1-5份三氯化铬,5-30份酸性硅溶胶,2-6份γ-氨丙基三乙氧基硅烷,0.5-3份柠檬酸和余量的蒸馏水。经钝化的镀锌板在镀层表面形成无色的坚固保护膜,耐蚀性,抗氧化性,抗硫化变黑等性能都大大增强,可广泛应用于各种金属镀件,尤其对镀锌层钝化更佳。(A passivator, a metal workpiece and a surface passivation method thereof are disclosed, wherein the passivator comprises the following components in parts by weight: 1-5 parts of chromium trichloride, 5-30 parts of acidic silica sol, 2-6 parts of gamma-aminopropyltriethoxysilane, 0.5-3 parts of citric acid and the balance of distilled water. The passivated galvanized sheet forms a colorless firm protective film on the surface of the plating layer, the performances of corrosion resistance, oxidation resistance, vulcanization blackening resistance and the like are greatly enhanced, and the passivated galvanized sheet can be widely applied to various metal plated pieces, and is particularly better for passivating the galvanized layer.)