The EDTA cleaning inhibitor has been screened and studied, and the prescription of multi-component composite inhibitor being optimized by using the orthogonal experimental method.
对EDTA清洗缓蚀剂进行了研究和筛选，并用正交试验法对所选出的多组分复合缓蚀剂配方进行优化。
2
Then the prescription is optimized by orthogonal method. Thus a sodium silicate composite coating with good water tolerance and strong adhesion is prepared.
然后利用正交法优选配方，制得耐水性良好、附着力强的水玻璃复合涂料。
3
A composite phosphatizing solution is developed according to the mechanism of phosphatizing film forming and the best prescription of phosphatizing solution is designed.