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Light tundish dry material and preparation method thereof
The invention relates to a light tundish dry material. The light tundish dry material is prepared from 5-15 parts of 0-1 mm magnesia, 10-25 parts of 1-3 mm magnesia, 15-30 parts of 200-mesh magnesia,2-20 parts of 0-1 mm olivine, 3-30 parts of 1-3 mm olivine, 3-25 parts of 200-mesh waste magnesia carbon brick dust removal powder, 1-5 parts of 0-1 mm silicon carbide and 1-10 parts of a binding agent modified resin. The light tundish dry material is high in normal-temperature breaking strength and compressive strength, the breaking strength is larger than 2 MPa, the compressive strength is larger than 8 MPa, the silicon carbide heat conduction coefficient is high, the expansion coefficient is low, the heat stability is good, high-temperature pressure resistance is achieved, the breaking strength is large, and the chemical performances are stable. Needle-shaped and fiber-shaped SiC is interspersed or dispersed in the skeleton structure of periclase, so that the reinforcing and tougheningeffects are achieved. The used refractory material is recycled, so that the national mineral resources and energy sources are saved, the environmental pollution is reduced, and the cost of the refractory material and the steelmaking cost are greatly reduced.
本发明涉及一种轻质中包干式料，其原料包含0‑1mm镁砂5‑15份、1‑3mm镁砂10‑25份、200目镁砂15‑30份，0‑1mm橄榄石2‑20份、1‑3mm橄榄石3‑30份，200目废镁碳砖除尘粉3‑25份，0‑1mm碳化硅1‑5份，结合剂：改性树脂1‑10份。一种轻质中包干式料常温抗折强度、耐压强度高，抗折强度大于2MPa，耐压＞8MPa，碳化硅导热系数高，膨胀系数低，热稳定性好，高温耐压，抗折强度大，化学性能稳定。由于针状和纤维状的SiC穿插或弥散在方镁石的骨架结构中起到增强增韧的作用。对用后耐火材料进行再生利用，不仅节约了国家的矿物资源和能源，也减少了环境污染、大大降低耐火材料的成本和炼钢成本。
Light tundish dry material and preparation method thereof
The invention relates to a light tundish dry material. The light tundish dry material is prepared from 5-15 parts of 0-1 mm magnesia, 10-25 parts of 1-3 mm magnesia, 15-30 parts of 200-mesh magnesia,2-20 parts of 0-1 mm olivine, 3-30 parts of 1-3 mm olivine, 3-25 parts of 200-mesh waste magnesia carbon brick dust removal powder, 1-5 parts of 0-1 mm silicon carbide and 1-10 parts of a binding agent modified resin. The light tundish dry material is high in normal-temperature breaking strength and compressive strength, the breaking strength is larger than 2 MPa, the compressive strength is larger than 8 MPa, the silicon carbide heat conduction coefficient is high, the expansion coefficient is low, the heat stability is good, high-temperature pressure resistance is achieved, the breaking strength is large, and the chemical performances are stable. Needle-shaped and fiber-shaped SiC is interspersed or dispersed in the skeleton structure of periclase, so that the reinforcing and tougheningeffects are achieved. The used refractory material is recycled, so that the national mineral resources and energy sources are saved, the environmental pollution is reduced, and the cost of the refractory material and the steelmaking cost are greatly reduced.
本发明涉及一种轻质中包干式料，其原料包含0‑1mm镁砂5‑15份、1‑3mm镁砂10‑25份、200目镁砂15‑30份，0‑1mm橄榄石2‑20份、1‑3mm橄榄石3‑30份，200目废镁碳砖除尘粉3‑25份，0‑1mm碳化硅1‑5份，结合剂：改性树脂1‑10份。一种轻质中包干式料常温抗折强度、耐压强度高，抗折强度大于2MPa，耐压＞8MPa，碳化硅导热系数高，膨胀系数低，热稳定性好，高温耐压，抗折强度大，化学性能稳定。由于针状和纤维状的SiC穿插或弥散在方镁石的骨架结构中起到增强增韧的作用。对用后耐火材料进行再生利用，不仅节约了国家的矿物资源和能源，也减少了环境污染、大大降低耐火材料的成本和炼钢成本。
Light tundish dry material and preparation method thereof
一种轻质中包干式料及制备方法
JIN ZHAO (author) / ZHANG YIXIAN (author) / YIN BIN (author) / LI CHANGJIANG (author)
2020-06-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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