炉衬

Under high temperature and vacuum, calcia crucible has better resistance to thermal chock and better chemical denudation than magnesia crucible.

在高温和真空下，CaO质炉衬的热稳定性和化学稳定性远比MgO质炉衬好。

During the actual production, that the oxygen contamination from the crucible material by heat composition increases the oxygen content of molten steel will result in melting losses of the alloys in the molten steel, and will results in more heavier melting losses of the alloys, incontrollable exact chemical content of molten steel, increment of oxide inclusions and bad processability and serviceability, especially in the high strength(σb≥1600MPa) steels and alloys with special performance used in aerospace industry, manufacturing industry for precision instruments and meters, military industry, nuclear industry etc. because these steels usually have a high content of some active alloys such as Ti, V, Nb, Al, RE, etc. and a nearly zero content of dissolved oxygen.

实际生产中，如果炉衬热分解向钢液供氧，势必会造成钢液中合金元素的烧损，尤其是在航空航天、精密仪器仪表制造、军工及核工业部门使用的某些具有特殊性能的高强度(抗拉强度σb≥1600MPa)合金或钢材，因它们通常需要具有较高的活泼合金元素(如Ti、V、Nb、Al、RE等)含量，且钢中溶解氧含量接近于零，炉衬热分解供氧将造成这些合金元素的大量烧损，其结果是钢液化学成分难以精确控制，并增加了氧化物夹杂含量，恶化了钢的加工和使用性能。

The development of new pattern light carbon brick-high efficiency,high temperature heat insulation material and the applicating effect in electrical furnace line sturcture are introduced.

分析了国内还原性电炉炉衬结构存在的技术问题和破损原因，介绍了轻质炭砖这一新型高效高温隔热材料的研究开发及其在电炉炉衬结构中的应用效果。

Shell by welding steel plate and steel form,the box EAF li-ning material from the ultra-light 0.6g/cm3 energy-saving insulating refractory brick building,dissecting home sili-cate insulation fiber carpet,furnace lining aluminum shelland filling between the layers expansion Insulation powder insulation,electriccomponents using high alloy products 0Cr27Al7Mo2 deviation from the system.

外壳由钢板和型钢焊接而成，箱式电炉炉衬材料由超轻质0.6g/cm3节能耐火保温砖砌筑，夹层置硅酸铝纤维毡保温，炉壳与炉衬硅酸铝夹层之间填充膨胀保温粉保温，电热元件采用高合金制品0Cr27Al7Mo2绕制而成。

For RX3 Series1200℃Temperature Box type Resistance Furnace structure, the shell are welded by steel plate and steel ,the lining used ultra-light 0.6 g/cm3 energy-saving insulating refractory brick building, dissecting home silicate insulation fiber carpet, furnace shell and lining silicate insulation between the layers packed powder expansion, the high-alloy components electrothermal products 0 Cr27Al7Mo2 bypass system and.

RX3系列1200℃箱式炉结构，外壳由钢板和型钢焊接而成，炉衬采用超轻质0.6g/cm3节能耐火保温砖砌筑，夹层置硅酸铝纤维毡保温，炉壳与炉衬硅酸铝夹层之间填充膨胀保温粉，电热元件采用高合金制品0Cr27Al7Mo2绕制而。

RX3 Series 1200℃ box EAF structure,the shell welded by ste-el plate and steel,the lining used ultra-light 0.6g/cm3 en-ergy-saving insulating refractory brick building,dissecti-ng home silicate insulation fiber carpet,furnace shell and lining aluminosilicate expansion of insulation between thelayers filled

RX3系列1200℃箱式炉结构，外壳由钢板和型钢焊接而成，炉衬采用超轻质0.6g/cm3节能耐火保温砖砌筑，夹层置硅酸铝纤维毡保温，炉壳与炉衬硅酸铝夹层之间填充膨胀保温粉，电热元件采用高合金制品0Cr27Al7Mo2绕制而。

In base of one company s practice in improving the life of furnace liner,It gives out some measures in many aspects,such as charging,build furnace, baker ,running,checking,repairing et al.

本文根据某铝业有限公司提高炉衬寿命的实践，提出了从炉料、筑炉、烘炉、使用、检测、修补等方面延长炉衬使用寿命的措施。

The campaign of induction furnace is lower because 10t main frequency furnace uses of acid refractory liner that is corroded by liquid iron and basic slag under the working condition of high temperature and full load and abr aded in the process of charging cold burden.

10t工频感应炉炉衬原采用酸性耐火炉衬，在高温满负荷工作状态下，受铁液及碱性炉渣侵蚀，加冷料过程中受机械磨损，造成感应炉炉龄低。

Based on analysis of reasons causing various problems in practical production, measures to lengthen the working life of furnace lining were proposed.

介绍有芯感应电炉炉衬结构，通过分析实际生产过程中各种问题出现的原因，提出延长有芯感应电炉炉衬使用寿命的方法。

Thermal field of the furnace with different lining thickness is calculated and the effect of the slag thickness on the temperature of furnace lining and shell are also compared.

计算了不同炉衬厚度下的炉体温度分布，比较了不同溅渣层厚度对炉壳及炉衬内部温度的影响，结合实际使用经验提出了最佳溅渣层的厚度，并对设置隔热层时的溅渣护炉温度场也进行了数值模拟。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。