In this paper a theoretical calculation method of one-side cooling of flattened tube welded on a wall was obtained by calculation of cooling elements.
本文根据传热学的基本原理,采用冷却单元计算法推导得到了一套完整的关于扁圆管单面贴壁冷却方式的理论计算方法。
The methods to improve the intensity of cold-rolled sheets is to add some useful alloying elements during steel-making and improve the cooling rate annealing treatment.
提高冷轧薄板机械强度的方法主要是在炼钢时添加有益的合金元素及在热处理时提高退火后的冷却速率。
The results show that, the presence of twinning martensite should be attributed to alloying elements addition in steel, and the austenitizing temperature, and cooling rate are not important factors.
结果表明,各状态试样组织中孪晶的出现,淬火温度、冷却速度的影响是次要的,与合金中的合金元素镍、铬、铜有更密切的关系。
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