查询词典 decarburizing

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。

MgO-C brick has a good erosion resistance but Al〓O〓-C brick is better. Corrosion mechanism for refractory without carbon is that FeO and oxides of molten slag take place chemical reaction with constituents of refractory and forming low fusing point compounds to be dissolved in molten slag. For those refractory containing graphite carbon is to be decarburized in advance and to form decarburizing layer and metamorphosis layer. The subsequent corrosion is decarburizing and taking chemical reaction to form low fusing point compounds and dissolved in molten slag at the same time.

铁浴中硅和钛的扩散是影响铁浴及熔渣与耐火材料作用的重要因素，耐火材料中添加的TiO〓和SiC受熔渣氧化和侵蚀，将被部分还原形成Si，Ti向铁浴中扩散，Si、Ti在铁浴中的扩散研究结果是： D〓=1.84×10〓exp（－5988.7/T） cm〓/S E〓=49766 J/mol D〓=7.76×10〓exp（－53225.5/T） cm〓/S E〓=442304 J/mol 铁浴式熔融还原熔体对粘土砖，高铝砖，镁砖的侵蚀速度很高，镁碳砖抗侵蚀能力比前几种耐火材料强，但不如铝碳砖；对不含碳耐火材料在熔体中的侵蚀是熔渣中FeO及其它氧化物与耐火材料组分的化学反应形成低熔点物熔蚀进入渣相，产生损毁。

As a protective atmosphere for sintering iron base materials, dissociated ammonia is a kind of decarburizing atmospheres.

本文通过热力学分析得出：在烧结过程中H_2与石墨难以形成CH_4，但易从Fe_3C中夺取C；分解氨作为烧结铁基材料的保护气氛是一种脱碳性气氛。

The structure changing feature of refractory in corrosion process is that there are decarburizing layer and metamorphorsis layer. In order to increase the resistance to melt for refractory containing graphite carbon, the forming rate of decarburizing layer and metamorphorsis layer must be controlled efficiently.

在耐火材料表面存在一层渣膜，它的组成既不同于熔体，也不同于耐火材料组分，而是富集耐火材料中的某些组分的液态渣膜，它的组成和性质控制着耐火材料的侵蚀速度。

Its subject coverage includes: ladle and tundish technologies to remove inclusions and prevent oxidation; and argon oxygen decarburizing, ladle degassing, filtering, secondary refining, and chemical analysis of slags.

它的主题涉及的范围包括：包和漏斗技术去除夹杂物和防止氧化作用；氩氧气钢的脱碳，包内去氧，过滤，二次精炼法，炉渣的化学分析。

Plasma modification is consisted of Ar-H2 plasma etching and Ar-H2-CH4 plasma decarburizing, experiments have been done on direct current plasma spraying CVD device.

等离子改性处理工艺包括Ar-H_2等离子体刻蚀脱碳、Ar-H_2-CH_4等离子体渗碳处理，实验在直流等离子体射流CVD装置上进行。

Cold smelting charge ratio was respectively 20%,25%,28%, by optimizing slag making and oxygen blowing process of dephosphorizing pretreatment period and decarburizing period,oxygen consumption rate increased from 20～30% to 40～50% than conventional process in dephosphorizing pretreatment period and slag charge was controlled at 8～15kg.t-1 in decarburizing pretreatment period.

在冷料比为20%、25%、28%条件下，通过优化脱磷、脱碳期供氧和造渣工艺，脱磷期耗氧比从传统工艺的20%～30%提高到30%～50%，脱碳期渣料加入量控制在8～15 kg.t-1.50炉工业试验结果表明，脱碳期一倒温度达到常规冶炼控制水平，一倒、控制水平明显好于常规冶炼工艺。

Cemented carbide ; nanosized WC ; free carbon ; decarburizing

硬质合金；纳米WC粉；游离碳；脱碳

Based on decarburization math model for RH process,the decarburization behavior of a 210 t RH unit has been studied to analyze the effect of vacuum,lifting gas flow rate and up-leg inner diameter on decarburizing process.

基于RH脱碳数学模型，研究了210tRH精炼装置的脱碳行为，分析了真空度、提升气体流量及浸渍管内径等因素对脱碳过程的影响；在自然脱碳条件下，根据实际取样分析结果，计算出脱碳速率常数K_C，发现整个脱碳过程分为两个阶段，即快速脱碳阶段和脱碳停滞阶段。

The main reasons are: the reaction+=Fe+CO also occur during molten iron drop passing final slag, the slag has lowlevel of FeO ,but it still has strong decarburizing capability. In addition, during molten irondrop passing final slag, the dynamic conditions of decarburizing reaction is well, it makethe carbon content of liquid iron reduce.

主要是因为铁滴穿过终渣时也发生+=Fe+CO 反应，此时渣中含量虽少，脱碳反应的动力学条件很好，具有较强的脱碳能力。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。