传统的孕育方法有不少弊病,主要表现为孕育衰退严重,孕育效果差,孕育剂加入量大。众所周知,孕育作用是随着时间延长而逐渐减弱并消失的,而现代孕育技术的一个共同特点就在于:缩短从加入孕育剂到铁水凝固的时间,力求达到瞬时孕育的目的,这样不仅可以大幅度地降低孕育剂用量,还可以获得最理想的孕育效果,这是对传统孕育方法的一个重大变革。一、孕育的时间性大量的实践表明,孕育的效果随着时间的推移不断下降 The traditional method of inoculation has many drawbacks, mainly manifested as a serious recession, poor pregnant effect, large amount of inoculant. As we all know, inoculation gradually diminish and disappear with time, and one of the common features of modern inoculation technology is: shorten the time from the addition of inoculant to the solidification of molten iron, and strive to achieve the purpose of instant breeding, so not only can significantly To reduce the amount of inoculant, you can also get the best effect of inoculation, which is a major change in the traditional breeding methods. First, the timing of a large number of practice shows that the effect of inoculation declining over time