冶炼炉

Brown aluminium oxide abra-Sive is electrically fusedin an arc-furnace from a mixture of bauxite, cokeas main raw ma-terials at high temperature. Its chemical composition contains Al2o3, TiO2, a small amount of SiO2,and Fe2o3, etc., micro-hardness: 18000-22000MPa, tou-ghess: higher than silicon carbide.

棕刚玉是以铝钒土、焦碳为主要原料，在电弧炉内经高温冶炼而成，主要化学成分为Al2O3TiO2还含有少量的SiO2和Fe2o3等，显微硬度Hv18000一22000，韧性比SiC高，用它制成的磨具，适于磨削抗张强度较高的金属，如各种通用钢材、各锻铸铁、硬青铜等。

White fused aluminium, oxide is electrically fused in the furnace with high-grade alumina powder as row materials.It has higher hardness and sightly lower toughness than brown fused aluminium oxide,character-rized by its high purity,strong grinding ability.

白刚玉是以铝矾土为原料，在电弧炉内高温冶炼而成，它具有颜絮白，硬度高，韧必稍低，纯度高，自锐性优，磨削力强，效率高，耐酸碱腐蚀，热稳定性高等特点，它不但是高级磨料磨具材料，且还是高级研磨，抛光材料等。

A model for predicting the sulphur content in hot metal based on neural networks is introduced. Blast temperature, blast flux, top temperature, burden, coal injection rate, sulphur content in ore, sulphur content in coke, sulphur content in coal and silicon content of last tap were selected as inputs. The inputs were treated with time lag to improve prediction.

采用3层BP神经网络来预报高炉铁水硫含量，根据高炉冶炼的实际生产数据，选取风温、风量、炉顶温度、焦炭负荷、喷煤量、矿石硫含量、焦炭硫含量、煤粉硫含量和上一炉铁水硅含量9个因素作为输入变量，为提高神经网络预报的准确率，对输入参数进行时滞处理。

From the view of the preparation methods for stainless steel master alloys, some new developments of producing process and their technical characteristics have been introduced in chapter two.

因此，围绕着竖炉法直接冶炼不锈钢母液的实践和理论研究这一主线，开展了卓有成效的研究工作。

Utilizng Jinchuang Corporation's waste slag and quartz sand as main raw materials and charred coal and charcoal as reducing agent, ferro-silicon alloy was reclaimed by mixed charging method in self-made DC arc furnace. The alloy was analysed by means of XRD and optical microscope.

利用金川公司的废渣和石英砂为主要原料，以焦碳和木炭作为还原剂，利用自制的小型直流电弧炉和混合加料法冶炼硅铁合金，并利用XRD和光学显微镜对合金进行了分析。

In order to ensure the success of industrial test of directly producing master alloys in a shaft furnace, theoretical analysis, detailed process calculations and a series of process experiments were completed.

为确保实现在竖炉上直接冶炼不锈钢母液的工业试验顺利完成，试验前专门进行了理论分析、详细的工艺计算以及一系列的工艺准备实验。

In the process of converter smelting, a fair quantity of iron oxide ball with high grade, low moiwture content and low in purity is added to converter instead of ore as the adjusting agent of temperature and slag.

在转炉冶炼过程中向炉内试验加入一定量的含铁品位高、水分少、杂质低的氧化铁球来代替矿石，作为转炉调温调渣剂，结果表明，加入氧化铁球后，转炉反应平稳，调渣迅速，不会产生剧烈反应造成喷溅，并有利于提高金属收得率。

The basic principle to form foamed slag and the factors to affect the fomation are introduced Combined with the practice of using the technology of submerged-arc smelting with foamed slap in Electric Furnace Steelworks of Tangshan Iron and Steel Company, its role In electric-arc steel-making production is stated.

介绍了泡沫渣形成基本原理及影响其形成的因素，并结合唐钢电炉炼钢厂采用泡沫渣埋弧冶炼工艺的实践，阐述了该工艺技术在电弧炉炼钢生产中的作用，具有推广应用的价值。

With the development of the steel making technology, more and more arc furnace invest to the industry, its capacity also become more bigger.

摘要随着炼钢业和冶炼技术的发展，越来越多的电弧炉设备投入到生产当中，其容量越来越大。

MgO crystal production using arc furnace is well developed in recent years home and abroad.

使用电弧炉进行氧化镁晶体冶炼是近年来国内外大力发展的项目。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。