How to clean glass
After cutting the glass according to the specifications, first rinse the front and back sides with tap water, then apply the iron red powder with water on the side to be plated, wipe off the iron red powder after drying, and wash it with water. Then scrub the surface of the glass to be plated with a small amount of stannous chloride solution. After washing, rinse the residual stannous chloride with water. Finally rinse the glass with clean water (preferably distilled water).
Water (25%) 10~15ml, sodium hydroxide 2g, glucose 1.3g, alcohol 25ml, a little stannous chloride. First prepare A solution, take silver nitrate and put it in a clean and oil-free 500-ml glass cup, add 100 ml of distilled water to dissolve, add ammonia water dropwise, and stir while adding. A grey precipitate initially appeared; continue to add ammonia until the precipitate is completely dissolved. After the solution is clarified, add 2 g of sodium hydroxide to 50 ml of water-soluble corner, pour it into the solution, and cool it.
There are two methods for surface processing of glass to form reflective imaging surface: electroless silver plating and vacuum evaporation. The most commonly used method is electroless silver plating. This method is to dissolve silver nitrate in water, add ammonia water and sodium hydroxide solution and dilute it into silver hydroxide ammonia double salt to make silver plating solution.
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