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发明公开
CN106495716A 一种ZrB2-SiC复合粉体改性免烧低碳镁碳质滑板及生产工艺 无效 - 撤回

一种ZrB2-SiC复合粉体改性免烧低碳镁碳质滑板及生产工艺
摘要：
本发明公开了一种ZrB2-SiC复合粉体改性免烧低碳镁碳质滑板。其组成按质量百分比配比为：3～1mm电熔镁砂35％、1～0mm电熔镁砂30％、≤0.075mm大结晶镁砂12～16％、＜0.088mm石墨2％、α-Al2O3微粉5％、Al粉+Si粉8％、复合抗氧化剂2％、ZrB2-SiC复合粉体2～6％，外加占总质量3％～5％的酚醛树脂结合剂。本发明的镁碳质滑板降低了碳含量，浇铸过程中减少了杂质的含量，提高了钢水的洁净度；本发明制备的镁碳滑板的使用寿命与普通镁碳滑板相比大大提高，平均使用寿命从原来的1.5次提高到3次以上。
摘要（英）：

The invention discloses a ZrB2-SiC composite powder modified unfired low-carbon magnesia carbon sliding plate. The sliding plate is prepared from, by mass, 35% of 3-1 mm of fused magnesite, 30% of 1-0 mm of fused magnesite, 12-16% of less than or equal to 0.075 mm of large crystal magnesia, 2% of less than 0.088 mm of graphite, 5% of alpha-Al2O3 micro powder, 8% of Al powder + Si powder, 2% of antioxidant compound, 2-6% of ZrB2-SiC composite powder, and with an addition of phenolic resin binder which accounts for 3%-5% of the total mass. According to the ZrB2-SiC composite powder modified unfired low-carbon magnesia carbon sliding plate, carbon content is reduced, impurity content is reduced in the casting process, and cleanliness of a molten steel is improved; the service life of the magnesia carbon sliding plate is greatly prolonged compared with an ordinary magnesia carbon sliding plate, and the average service life is prolonged to three times or above from the original 1.5 times.

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