通过改变均热温度和保温时间，研究低碳钢的奥氏体平均晶粒尺寸与时间的关系，及奥氏体晶粒各尺寸范围的分布规律。
By changing heating temperature and holding time, the austenite grain growth behavior of a low carbon steel under different heating conditions was studied.
数值计算结果表明，均热板底板各截面的温度分布规律符合理论分析的结论。
The numerical solution shows that temperature distribution rule on every cross-section of cold plate agree with conclusions of theory analysis.
在燃磷量不变情况下，最高燃烧温度、壁面最大热流和平均热流均随过剩空气系数的增大而减小，但烟气出口温度缓慢增加。
Under the condition of constant phosphorus mass flow rate, the smog exit temperature would increase slowly while other parameters would decrease with increasing excess air coefficient.
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