耐火度

Its refractoriness reaches over 1730℃, and it has good chemical stability and fairly low thermal conductivity, especially used as the filter material for steel casting and steel smelting.

耐火度高达1730℃以上，有较高的化学稳定性和较小的导热系数，是专门为作为钢铸造和钢冶炼的过滤材料。

The refractoriness,room temperature strength and expansion coefficient of vitrified bonds with different Na2O content were investigated.

研究了陶瓷结合剂中Na2O的含量对陶瓷结合剂性能的影响。发现结合剂的耐火度随Na2O含量的增加而降低；结合剂中Na2O含量对由结合剂和金刚石磨料制得的力学试条的强度有很大影响，结合剂Na2O含量较低时，随Na2O含量的增加，力学试样抗弯强度提高。

This series of unshaped light-weight castable has speciatlties of high refractoriness, high pressure resistance,low thermal conductivity and convenient construction.

该系列不定形轻质浇注料，它具有耐火度高，耐压强度高，导热系数小、施工方便简单特特点。

High-temperature furnace refractories: mainly mullite, corundum, silicon carbide, sillimanite products such as materials, widely used in various electric kiln, furnace (push plate tunnel kiln, shuttle kiln,) and the general coal, oil , gas heat furnace and so on, have a high refractoriness, high temperature strength, thermal shock stability and corrosion resistance, is an ideal high-temperature furnace refractories.

三。高温窑炉耐火材料：主要有莫来石、刚玉、碳化硅、硅线石等材质的制品，广泛应用于各种电窑、电炉和一般煤、油、气高温窑炉等，具有较高的耐火度、高温强度、热震稳定性和耐腐蚀性，是理想的高温窑炉耐火材料。

The fire-resistance, bending strength, soakage and thermal expansion coefficient of the vitrified bond was tested.

测试了结合剂的耐火度、润湿性、抗弯强度和热膨胀系数，分析了F对玻璃结构和性能的影响。

This technique has two prominent problems: titanium"s burning loss and high temperature melt treatment (up 1873K). The author puts forward melting protective cover used by plant ash which can insulate air and enhance effect of heat preservation effectively. At the same time, the author chooses alkalinous magnesite for furnace lining which can avoid redox reaction between silicon oxide (SiO2) and titanium, improve fireproofness of furnace lining and decrease titanium"s burning loss ratio.

针对制备工艺的两个突出问题：Ti元素的烧损问题和高温熔体处理问题(1873K以上)，提出利用草木灰作为熔炼的覆盖剂，能有效地隔离空气，强化保温效果，同时选用碱性镁砂炉衬，提高了炉衬的耐火度，克服了酸性炉衬中SiO_2与Ti元素的氧化还原反应，降低了Ti元素的烧损率。

The rheological behavior was improved by degassing, which improved the loading of the slurry on the sponge.

在该条件下得到的碳化硅网眼陶瓷，具有优异的耐高温性能（耐火度高于1710℃）和最佳的抗热震性能。

They are main products of basic refractories, and have wide usage in metallurgical furnace.

本产品经高温烧制而成，是碱性耐火材料中最主要的制品，具有耐火度高，对铁的氧化物、碱性炉渣及高钙熔剂具有良好的抗侵蚀性等特点，在冶金窑炉中应用广泛。

Effect of F(superscript -) on structure and properties of vitrified bond was analysed.

结果表明：在低熔陶瓷结合剂中引入适量的F可以降低结合剂的耐火度，提高结合剂对CBN的润湿性以及结合剂本身的抗折强度。F在玻璃网络中起断网作用，因此F加入量不能大于5%，否则会影响结合剂的综合性能。

Keywords vitrified bond;Na2O;diamond grinding wheel;expansion coefficient;refractoriness

陶瓷结合剂； Na2O；金刚石砂轮；膨胀系数；耐火度

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。