Kettle of inner coating is what things?
Is silver, is known as the "silver mirror reaction" by chemical reaction, the chemical solution injected into the inside of the interlayer reaction, wait until after silver plating on pour out the solution.
The original use of silver. Material, process is very complex. Now hot water tank with stainless steel, using vacuum insulation, not easy to rust, scale; Also have adopted complex plastic coating, the surface is alloy, etc.
Manufacturing silver mirror to spend a lot of precious silver, so the current manufacturing technology is moving in a vacuum aluminum plating mirror (aluminum) or ion vacuum coating (titanium tungsten lens or mirror) direction. But the latter request equipment complex, technical difficulty big one-time investment and manufacturers, and the area of the coating co., LTD. (such as limited by ion vacuum coating machine volume), so it is still widely used silver plating technology. Mercury is impossible Because mercury is a liquid at room temperature Won't cause harm to human body
