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According to the kinetics of decarburization reactionand the theory of mass conservation,the mathematical model of RH decarburizationprocess has been established.

根据脱碳反应动力学和质量守恒原理建立了RH-MFB 脱碳数学模型。

The rate and limits of the decarburization reaction of FeO dissolved in CaO-SiO2-Al2O3 slag and Fe-C droplets have been studied.

对CaO-SiO2-Al2O3-FeO熔渣体系与铁碳金属颗粒反应的脱碳反应速率及脱碳反应限度进行了研究。

The depth of decarburization obtained at the maximum decarburization

在最大脱碳位置获得的脱碳深度不得超过表1中平均值的50%。

Base on study for increasing decarburize velocity in the state and word , founding a mathematics model of decarburizing in RH equipment through practice of operation and experimentation. Applying the model calculation, obtain reasonable process parameters of management and status of hot metal before management of decarbonization using RH—MFB equipment.

在借鉴国内外为提高RH脱碳速度的研究成果基础上,结合攀钢RH—MFB的实际及前期IF钢试验情况,建立了RH脱碳数学模型,通过计算提出了攀钢RH-MFB处理超低碳IF钢较合理的来钢条件及处理过程工艺参数。

In order to require of the decarburized layer depth of T11A~T13A carbon tool steel wire rod up to the GB/T1298-1986 standard,the correspond heating processes for roughing soaking pit,pusher-type furnace for structural steel and rail and step-by-step furnace for wire were established based on the feature of T11A~T13A carbon tool and process technology in Pan Steel Co.

为使攀钢T11A~T13A碳素工具钢盘条的脱碳层深度满足GB/T12 98 1986标准的要求,根据T11A~T13A碳素工具钢的特点及攀钢的生产工艺,对初轧均热坑、轨梁推钢式加热炉及线材的步进式加热炉制定了相应的加热工艺,生产出的T11A~T13A碳素工具钢盘条的脱碳层全部满足GB/T12 98 1986标准的要求。

A mathematical model was developed to investigate the molten steel flow and decarburization process in RH vacuum degasser system under the action of electromagnetic field.

为了了解旋转磁场下真空精炼装置内的脱碳反应,对RH装置内钢液流场与脱碳过程进行了耦合计算;采用修正的均相流模型计算流场,避免了先前的一些不具推广性的方法,如简化计算区域或者预先规定含气率分布等。

The low-phosphorus and low-carbon Al-Si-Mn ferroalloy is produced with aluminium and common silicomanganese in certain proportion and through adding proper amount of Ca-Ba dephosphorizing agent for high temperature dephosphorizing and decarbonizing and adding proper amount of pure aluminum and clean waste steel.

本发明按一定比例的铝、普通硅锰合金,加适量的钙、钡系脱磷剂进行高温脱磷脱碳,再根据产品成份的要求补加金属锰,加入所需的纯铝及纯净废钢,获得的低磷低碳铝硅锰铁合金的组成为:Al 5~20%,Mn 50~70%,Si 8~20%,C≤1.0%,P≤0.1%,S≤0.03%,余量为Fe。

The results show that a serious decarbonizing layer in the surface of high carbon steel is produced by ion bombarding.

结果表明,在离子轰击下,高碳钢表层产生严重的脱碳层,脱碳层的存在对随后的渗金属过程有着很大的影响。

Through adopt the measure such as controling status of hot metal (for example content of carbon, content of oxygen, amount of converter slag, weight of hot metal etc.), depressing degree of vacuum promptly by driving vacuum pump ahead or increasing flow of nitrogen, controling correctly inserted deepness of duck, controling the time of decarburizing, process parameters of decarbonization for managing IF steel using RH—MFB equipment are optimized.

通过严格控制来钢条件,如碳、氧含量,转炉下渣量,钢水量;迅速降低真空室内真空度,采用预真空的压降模式,提高提升气体流量;保证浸渍管插入深度及脱碳时间等措施,优化了攀钢RH—MFB处理超低碳IF钢的脱碳工艺参数,取得了较明显的工艺效果。

So the key point of removing carbon dioxide by PSA lied in the development and selection of high quality adsorbent and the design for suitable process flow.The purpose of this paper was to remove carbon dioxide from synthesis gas of synthetic ammonia industry by the way of PSA.

因此变压吸附法脱碳的关键在于高效脱碳吸附剂的开发和选择,以及合理的工艺流程的设计,以实现脱碳过程的高选择性和产品气的高回收率。

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