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本帖產(chǎn)生 1 個(gè) 翻譯EPI ，點(diǎn)擊這里進(jìn)行查看

wanghao69

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[求助] 請大神翻譯一小段英語片段

ABSTRACT
Recently, the material of castables used  for wall and bottom of steel ladle has  been changed from alumina-spinel to alumina-magnesia because the corrosion
and penetration resistance of the alumina-magnesia castables are mproved more than the alumina-spinel  castables due to the in-situ spinel formation. Regarding the properties of spinel-containing castables, we have carried out laboratory experiments on three types of spinel-containing castables (alumina-spinel, aluminaspinel-
magnesia and alumina-magnesia),and the results have been applied to steel ladle. According to the laboratory experiments the magnesia-containing
castable showed dramatic linear expansion at the over 1200℃ due to the in-situ spinel formation, and the aluminamagnesia  castables showed the highest
corrosion resistance among three types of castables. However, the field test showed different result. The aluminaspinel castable could maintain stability
without spalling. On the other hand, the alumina-spinel-magnesia could not satisfy the expected life time due to spalling. We can assume that it is due to
the difference in spinel generation speed, which is caused by the reaction between alumina and magnesia on the movable and unmovable surface. One of effective
methods to control the expansion is addition of microsilica. Nonetheless, it is important to control the optimal speed and microsilica content in castables
according to the operational condition.

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1樓 2014-09-15 13:36:05

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【答案】應(yīng)助回帖

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RXMCDM: 金幣+1, 多謝應(yīng)助！ 2014-09-16 08:15:08
wanghao69: 金幣+20, 翻譯EPI+1, ★有幫助 2014-09-16 10:08:28

摘要
最近，用于鋼包壁和底部的耐火澆注料的材料已經(jīng)由氧化鋁-尖晶石換為氧化鋁-氧化鎂尖晶石，因?yàn)檠趸X-氧化鎂耐火澆注料的抗腐蝕和耐穿透性比氧化鋁-尖晶石耐火澆注料得到更好的改進(jìn)，因?yàn)檫@兩種材料是在尖晶石形成過程中于原位產(chǎn)生的。關(guān)于含尖晶石耐火澆注料的性能，我們已經(jīng)對三種類型的含尖晶石耐火澆注料（氧化鋁-尖晶石，氧化鋁尖晶石-氧化鎂以及氧化鋁-氧化鎂）在實(shí)驗(yàn)室進(jìn)行了實(shí)驗(yàn)，而且結(jié)果已經(jīng)應(yīng)用到鋼包。根據(jù)在實(shí)驗(yàn)室中進(jìn)行的實(shí)驗(yàn)，含氧化鎂的澆注料在超過1200℃時(shí)發(fā)生劇烈的線性膨脹，因?yàn)樵谠挥屑饩男纬�，而且鋁鎂耐火澆注料在三種類型耐火澆注料中具有最高的耐腐蝕性。但是，現(xiàn)場測試顯示的結(jié)果不同。氧化鋁尖晶石澆注料能夠保持穩(wěn)定而不剝落。另一方面，氧化鋁-尖晶石-氧化鎂因其剝落而不能滿足預(yù)期壽命。我們可以假設(shè)，這是由于在尖晶石生成速度方面的差異，而該差異是由于在可移動(dòng)和不可移動(dòng)表面上氧化鋁和氧化鎂間進(jìn)行的反應(yīng)引起。其中一個(gè)有效控制膨脹的方法是加添硅微粉。當(dāng)然，重要的是要根據(jù)操作條件來控制最佳速度和耐火澆注料中硅微粉的含量。

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2樓2014-09-16 03:13:43