OY-125A aluminum at room temperature blackening agent I. Process Description: OY-125 aluminum blackening agent is a colorless alkaline solution, it is designed for aluminum and aluminum black and designed for aluminum extrusions , stampings, die-cast aluminum, aluminum foundry and all types of aluminum and aluminum alloy. Second, the process: OY-122 aluminum degreasing → three countercurrent washing → OY-125 aluminum black → three countercurrent washing → OY-4 → drying waterborne closed three operating conditions: Item Indicators 1 Appearance colorless transparent liquid ratio of 1 part syrup added 2 3-5 3 parts of water at room temperature 4 operating temperature processing time of 30 seconds to 2 minutes 5 to use the immersion treatment four, Production Maintenance: 1. production operations, strict control of the working fluid temperature below 35 ℃ , otherwise easily lead to excessive corrosion of aluminum, black film loose or even fall off, and the solution temperature rises due to the exothermic reaction and black, and thus be controlled loading, generally no more than 40% of the volume of the solution is appropriate; 2. With black production proceeds, the active ingredient gradually reduce solution should be based on the production of additional OY-125 aluminum black agents, the most suitable method is more work to maintain concentration for the concentration of 80% when slotting " less fill spare "to ensure the working fluid can normally black, low concentration, black slow, the film is not dense; high concentration of black fast, corrosive aluminum layer loose and easy off; 3.OY-125 aluminum hair Black is a strong alkaline solution, corrosive to the skin on the body, do not wear protective tools will operate; 4. If the surface of floating ash black member can graze go; black film is dry before film layer adhesion is poor, pay attention to prevent scratches.