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有时,冶金研究人员需要热轧很小的试件。通常的轧制的方法是:将试件在辅助的炉内加热,然后很快地送入普通轧机的轧辊中。这样,要精确控制温度是困难的,因小试件从炉子中出来送入轧机的运输过程中会损失一部分热量。为了解决这一问题,通常采用将试件过热或将加热炉靠近轧辊的方法。虽采用上述两种方法,但轧件表面同较冷的轧辊接触时会被冷却的。例如:Goss在实验轧机上轧制厚度2.8 7毫米的钢带时发现:轧件原始温度为427℃,而最后温度只有332℃。因此,在要保持高温和均匀温度
Sometimes metallurgists need hot-rolled small specimens. The usual method of rolling is by heating the test piece in an auxiliary furnace and then rapidly feeding it into the rolls of a conventional rolling mill. In this way, it is difficult to accurately control the temperature, because a small specimen from the furnace into the mill during transportation will lose some of the heat. In order to solve this problem, a method of overheating the specimen or bringing the heating furnace close to the roll is usually adopted. Although the above two methods, but the rolling surface with the cooler roller will be cooled contact. For example, Goss rolled a strip of 2.8 7 mm thickness on a pilot mill and found that the original temperature of the rolled stock was 427 ° C and the final temperature was only 332 ° C. Therefore, to maintain high temperature and uniform temperature