3187 results about "Nonferrous metal" patented technology

The invention relates to fast-drying hard film rust preventive oil which comprises the following components in percentage by weight: 10-35% of film former, 5-20% of rust preventer, 0.1-5% of cosolvent, 0.1-5% of antioxidant and 50-90% of base oil. The preparation method comprises the following steps: 1, preparing raw materials according to the weight percents of the components; 2, adding the prepared base oil into a reaction kettle, stirring while heating, adding the prepared rust preventer, cosolvent and antioxidant when the temperature rises to 100-150 DEG C, and sufficiently stirring until the materials are completely dissolved; and 3, cooling to 50-100 DEG C in the reaction kettle, then slowly adding the film former and the balance of base oil, sufficiently stirring until the materials are completely dissolved, cooling to room temperature, detecting, and discharging to finish the preparation. According to the invention, the rust preventive oil prepared from the components according to the weight percents provided by the invention can be dry on the surface within 10-30 minutes and can be dry as a bone within 0.5-2 hours; the rust prevention film is transparent and bright; the adhesion of dust is reduced, so that the product is neat and beautiful; and favorable rust prevention effect for long-term storage and transportation of nonferrous metal and ferrous metal can be achieved.