internal quality(① The internal quality of the product produced from the single-belt process is very satisfactory. 单带连铸法生产的铸坯内在质量令人十分满意。② Besides the obvious loss in production and associated costs, the breakout damage sustained by the caster both short term and long term can effect the surface and/or internal quality of the cast product. 除了生产和相关费用受到明显损失外,漏钢对连铸机造成的无论长期还是短期危害都会对连铸坯表面和/或内在质量产生影响。)
old grade of steel being cast(In the grade change operation, the tundish containing the old grade of steel being cast is first emptied to a certain depth before pouring the new grade from the ladle. 变钢种操作时,在由钢包浇人下一炉异钢种钢水前,首先将盛有上一炉正在浇注钢种钢水的中间包排空到一定深度。)
in-line rail head hardening equipment(By the end of 2009, we had completed installation of the 200, 000-tonne/year in-line rail head hardening equipment. 到 2009 年底,我们已完成了 20 万 t/ 年在线轨头淬火设备的安装。)
gas solubility in liquid steel(【技】气体在钢水中的溶解度受多种因素的影响,主要有:温度升高,溶解度增加;气体分压降低,溶解度降低。同时,气体在钢液中的溶解度还受钢水中不同化学元素的影响:与气体能形成化合物的元素,能提高气体在钢水中的溶解度;比铁对气体有更大亲和力的元素,能提高气体在钢水的溶解度;但一些非金属或准金属元素,如 C、 P、 S、 O、 Si 等会降低气体在钢水中的溶解度。)
vanadium function in steel(【技】钒是强化铁素体和 γ 相形成元素之一,它和 C、 N、0 都有极强的亲和力,在钢中的主要作用有:①细化组织和晶粒,提高晶粒粗化温度,降低钢的过热敏感性,提高钢的强度和韧性;②在高温溶人奥氏体时,增加钢的淬透性,以碳化物形态存在降低淬透性;③增加淬火钢的耐回火性并产生二次硬化效应。)