一、前言在钢丝敞焰无氧化加热中,采用双层燃烧、气流分层的方法,不仅可以保证工艺要求的温度,还可防止金属氧化,简化预热系统,因而,可认为它是使用低卡燃料,实现敞焰无氧化加热的有效途径。那么,怎样可使高温氧化气层与还原气层很好的分层呢?即:在加热段上部具有高温氧化性气氛,以保证钢丝的加热温度,而下部又有稳定的还原性气层以防止钢丝在高温下氧化,这便是进行模型实验的目的。 First, the foreword In the open flame oxidation-free heating, the use of dual-layer combustion, airflow stratification method, not only to ensure the required process temperature, but also to prevent metal oxidation, simplifying the preheating system, therefore, it can be considered low Card fuel, open flame without heating an effective way to oxidation. So, how to make high-temperature oxide layer and the reduction of gas well layered? That is: the upper part of the heating section has a high temperature oxidizing atmosphere, in order to ensure the wire heating temperature, and the lower part of a stable reducing gas layer Preventing oxidation of the wire at high temperatures is the goal of model experiments.