新型淬火介质优点多有些钢丝通过油淬火回火后可得到优异的性能，传统作法是采用油淬。油淬的缺点是淬火油易老化和油烟污染环境，采用高分子聚合物ＰＡＧ作淬火介质则无淬火油的缺点。ＰＡＧ无毒无味，成分稳定，长期使用不变质淬火时耗量少，浓度易测控，淬火质量好，特... Advantages of the new quenching medium and more After some wire quenching and tempering oil can get excellent performance, the traditional approach is to use oil quenching. The disadvantage of oil quenching is easy to aging quenching oil and soot pollute the environment, the use of polymer PAG quenching medium is no quenching oil shortcomings. PAG non-toxic and tasteless, stable composition, long-term use of non-degenerate Quenching less consumption, concentration easy to control, quenching quality, special ...