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High quality re-bonded bricks, based
on fused magnesia chromite, have been used
in snorkel and lower vessel to provide good
thermal shock resistance and high erosion
and corrosion resistance1.
Three different grades of magnesia
chromite bricks have been tested for hot
strength and creep resistance (see Table I).
All products are based on fused magnesia
chromite, high purity sintered magnesia and
chrome ore, and the final products are fired
in a similar condition, i.e. at or above
1700¡ãC.
An induction furnace test has been
carried for their corrosion resistance and
steel erosion resistance. The test was carried
out with ULC steel and iron oxide rich slag
(chemistry: 11% CaO, 15% Al2O3, 8% MgO
and 65% Fe2O3) at approx. 1700¡ãC for 4h, as
shown in Fig.4.

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RXMCDM: ½ð±Ò+1, ¶àлӦÖú£¡ 2014-09-21 10:39:51
Çå·ç·÷ÃÎ: ½ð±Ò+24, ¡ï¡ï¡ïºÜÓаïÖú 2014-09-21 12:41:05
¸ßÖÊÁ¿ÔÙ½áºÏ£¨ÄÍ»ð£©×©£¬»ùÓÚµçÈÛþ(ɰ)¸õ(Ìú¿ó)£¬ÒÑÓÃÓÚÍ¨Æø¹ÜºÍ½ÏµÍµÄÈÝÆ÷ÒÔ±ãÌṩÁ¼ºÃµÄ¿¹ÈÈÕðÐÔºÍÄ͸߸¯Ê´ºÍÄ͸¯Ê´ÐÔ¡¾1¡¿¡£ÈýÖÖ²»Í¬µÈ¼¶µÄþ¸õשÒѾ­ÓÃÓÚ²âÊÔÈÈÇ¿¶ÈºÍ¿¹Èä±äÐÔ(¼û±í1)£¬ËùÓвúÆ·¶¼ÊÇ»ùÓÚµçÈÛþ(ɰ)¸õ(Ìú¿ó)£¬¸ß´¿¶ÈÉÕ½áµÄÑõ»¯Ã¾ºÍ¸õ¿óʯ(ɰ)£¬ÇÒ×îÖյIJúÆ·ÔÚÀàËÆµÄÇé¿öϱ»È¼ÉÕ£¬¼´´ïµ½»ò³¬¹ý1700¡ãC¡£ÒѾ­½øÐÐÁËÄ͸¯Ê´ºÍ¸Ö²ÄÄ͸¯Ê´ÐÔµÄÒ»¸ö¸ÐӦ¯²âÊÔ¡£ÔÚÔ¼700¡ãCϽøÐÐÁ˳¬µÍ̼¸ÖºÍÌúÑõ»¯Ìú¸»ÈÛÔü(»¯Ñ§×é³É£º11% CaO, 15% Al2O3£¬8% MgOºÍ 65% Fe2O3) µÄ4 h²âÊÔ¡££¬Èçͼ4Ëùʾ¡£
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