Through the ionic exchange, the alkaline metal ion of glass surface is placed by other alkaline metal ion in salt melted, enhancing its mechanical strength.
通过离子交换，玻璃表层碱金属离子被熔盐中的其它碱金属离子置换，使机械强度提高的玻璃。
2
The glass surface is blackened by use of ionexchange hydrogen reduction method, doping coloration ion method, surface coating method and collosol-gelling method.
对该玻璃表面黑化，采用了离子交换氢还原法、玻璃中掺杂着色离子法、表面涂覆法以及溶胶凝胶法。
3
The study situation of cane juice decolorization in a few years were reviewed, included surface active agents, ionexchange, absorption decolorization, redox decolorization and so on.