1.Through investigate and analyse billet reheating technics,find the factor which influence the billet oxidizing burning loss,and through adopted some technic measure,Reduced the oxidzing buring loss of the billet availably.
通过调查分析板坯加热工艺,找到影响板坯烧损的因素,并采取相应的技术措施,使板坯氧化烧损得到了有效控制。
2.Do hot state cast experimentation with 60Si2Mn steel and Si steel using selfdesgined stainless steel mold (model : real billet =1:1, simulate 150mm×150mm billet). Research the stirring effect on billet solidification structure and segregation of carbon element and inclusions with EMS in different casting parameter and stirring parameter.
本研究还采用自行设计的不锈钢水冷锭模,对60Si2Mn和准硅钢进行了有无电磁搅拌作用下的铸坯热态浇铸实验(模型:实际连铸坯=1:1,模拟150mm×150mm小方坯),在电磁搅拌作用下不同工艺参数和搅拌参数对铸坯凝固组织、碳偏析和夹杂物的作用效果进行了系统的研究。
3.Abstract: In this paper,the kinematically admissible velocity fields are established by using the metal flow patterns based on the experiments,and the configuration dimensions of billet and the curves of Load-stroke in precision forging process for spur gear from solid billet are simulated on computer by Upper Bound Method.The results acquired in the simulation are in good agreement with those obtained in the experiments.
文摘:本文利用有实验根据的变形流动模式建立动可容速度场，利用上限法模拟用实心坯料精锻直齿圆柱齿轮时坯料的外形尺寸变化和力—行程曲线，所得结果与实验测定值很一致，可供冲挤精锻工艺设计参考。
4.The examination results showed that in comparison without argon gas shielding casting the total oxygen content inΦ450 mm round billet of wheel steel produced with shielding argon gas at Maanshan Steel decreased to 27. 9×10-6 , from original 49. 3×10-6 , the total inclusion content in steel decreased to 14. 8×10-6 from 29. 7×10-6 the quality of cast billet obviously increased and the mechanical properties of wheel increased appreciably.
检验结果表明,马钢车轮钢Φ450 mm圆坯的T[O]由未进行氩封保护浇铸时的49．3×10-6降到27．9×10-6,夹杂总量由29．7×10-6降至14．8×10-6,铸坯质量明显改善,车轮的力学性能显著提高。
5.Compared it with conventional billet,billet cast with high frequency electromagnetic field,on which depth of surface oscillation mark was decreased remarkably,had a smooth surface.
施加高频电磁场的铸坯与传统连铸坯相比 ,表面振动痕深度明显减小 ,且表面光滑
6.To solve problems existing in Demag billet concaster such as low drawing speed, high breakout ratio and incompatibility of the continuous caster with the converter in the respect of operating cycle the billet concaster of the Corporation has been renovated.
针对德马克小方坯连铸机存在拉速低、溢漏钢率高、铸机与转炉生产周期不匹配等问题,进行分析和改造。
7.The billet caster used in Guangzhou Iron and Steel Co. Ltd. is a modified Demag type with radius of R6, three strands (150×150 billet) ,copper tube mold (700mm in length),double feet roll.
广钢连铸机是改进的德马克型，半径R6，三流（150×150方坯），铜管结晶器（长70Omm），双足辊；
8.In this paper,experiments research is made to simulate the primary rolling process for 1150mm Φ bloomer of Baotou steel works in rolling B8.4t rimmed ingots into 300mm×300mm billet. The influence of different B8.4t ingots bottom and rolling schedules on back end crops losses was compared. The metal flow law of ingot bottom was analyzed.
以包钢Φ1150初轧机轧制B8．4t沸腾钢锭生产300mm×300mm方坯为模拟对象，进行了实验研究．比较了不同尾部形状的B8．4t钢锭及轧制规程对切尾的影响，观察了钢锭尾部金属的流动规律．在剪切规程不改变的条件下，实验结果应用于开坯生产，可提高成坯率0．55％．
9.Analysis of rupture mechanism of precision high speed shear process of bar material has been done from the view of rupture mechanics with discussion about influence of shear speed and temperature on quality of section area of billet in high speed shear.
从断裂力学逆角度对高速棒料精密剪切过程的断裂机理进行了分析,讨论了高速剪切时,剪切速度和剪切温度对剪切后毛坯断面质量的影响。
10.The great engineering software ANSYS was used to simulate the induction heating process of a continuous casting square billet in multi-physical coupling field based on the electromagnetic induction and heat exchange theory.
摘要根据电磁感应理论及传热基本原理，利用大型工程软件ANSYS对连铸方坯的感应补热过程进行了多物理场耦合的有限元模拟，并对铸坯断面上的温度梯度、磁场分布等进行了分析。
