By changing heating temperature and holding time,the austenite grain growth behavior of a low carbon steel under different heating conditions was studied.
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。
After soaking,most of the independently-nucleated V(C,N) tends to dissolve,and the undissolved V(C,N) starts to grow up,meanwhil.
实验结果显示,在连铸初期,TiN基本全部从钢中析出,而随着铸坯温度的降低,V开始以TiN为核心或单独形核析出,在铸坯均热后,大部分单独形核的V(C,N)趋于溶解,未溶解的则开始长大,而以TiN为核心的(Ti,V)(C,N)中的V部分溶解于钢中,V在粒子中的含量减少。
After soaking, most of independently-nucleated V(C,N) tends to dissolve, and the rest, which is difficult to dissolve, .
实验结果显示,在连铸初期,TiN基本全部从钢中析出,而随着铸坯温度的降低,V开始以TiN为核心或单独形核析出,在铸坯均热后,大部分单独形核的V(C,N)趋于溶解,难以溶解开始长大,而以TiN为核心的(Ti,V)(C,N)中的V部分溶解于钢中,V在粒子中的含量减少。
Analysis of factors affecting the average heat flux of billet mould;
小方坯连铸机结晶器平均热流影响因素的分析
The influence of casting speed on the average heat flux of mould for slab continuous casting was discussed.
通过计算 8 0 88块板坯的平均热流研究了拉速对板坯结晶器平均热流的影响。
The affection of the carbon content on the average heat flux of mould of slab coninuous casting was discussed.
研究了碳含量对板坯结晶器平均热流的影响。
Effect of soaking time on the dissolution of microalloyed elements in high-strength steel containing Ti and Nb;
均热时间对含Ti、Nb微合金元素高强钢固溶规律的影响
The usage of HFH furnace is given and a introduction of calculation of soaking time and purging time in HFH furnace is discussed based on HPH furnace of Baosteel.
在冷轧钢材的工业生产中,罩式炉退火是一个重要的环节,本文讲解了新型的HPH罩式炉的作用,并以宝钢的HPH罩式炉为背景,介绍了控制中最关键的均热时间和保护气氛冲洗时间的计算方法。
In view of existing caculation deviation of slab temperature and controlling difficult of acceleration point and swing stage of pit furnace,some optimization measures were applied,and good effects were abtained.
针对CSP生产线连铸机实现两流生产后均热炉存在板坯实时温度计算偏差、加速点设定不合理和摆渡段控制不完善的问题,调整了均热炉的升温步长、加速点的温度偏差值和摆渡段的优化控制,取得了很好的效果。
On the base of research for the heating process in the pit furnace and summing up the operation practice, this paper established a controlling model about heating steel ingot in the pit furnace by combinati0n expert system with mathematical model.
通过对均热炉加热工艺的分析研究,在总结连热炉操作经验的基础上，建立了一个专家系统与数学模型相结合的连热炉钢锭加热控制度型，用该模型对某大型初轧厂均热炉加热过程进行离线模拟,证明是准确可靠的,对生产工艺以炉子的在线控制具有一定的指导意义。
Research of temperature control system for regenerative soaking furnace;
蓄热式均热炉炉温控制系统的研究
Change of composition and structure of Al_2O_3-SiO_2 castables for soaking furnace bottom roller of the CSP system at work;
均热炉底辊用Al_2O_3-SiO_2质浇注料在使用过程中的相组成和结构变化
By the concrete index and using request of 1 375 ℃ high strength castable refractory, 1 204 ℃ heat insulating refractory, 1 260 ℃ heat insulating refracrory,1 09 3℃ heat insulating refractory and 1 316 ℃ Si castable, the castable refractory for CSP billet soaking furnace is researched, which is acquired the good using effect.
根据CSP薄板坯均热炉用1375℃高强度浇注料、1204℃隔热浇注料、1260℃隔热浇注料、1093℃隔热浇注料和1316℃熔合硅浇注料的具体指标和使用要求,结合国内耐火原料的特点,研制出了满足CSP薄板坯均热炉使用需要的耐火浇注料,达到了预期效果。