Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tundish fire-resistant plastic coating and preparation method thereof
The invention provides a tundish fire-resistant coating. The coating product has a tundish working layer which is less in water addition during site construction, has certain plasticity during use, and is short in on-line pre-baking time and high in erosion resistance. Specifically, the tundish fire-resistant plastic coating is prepared from the following components in percentage by weight: 25 to 45 percent of 95 medium-grade magnesia with the particle size of 3 to 1 mm, 20 to 30 percent of 95 medium-grade magnesia with the particle size of 1 to 0.5 mm, 30 to 40 percent of 95 medium-grade magnesia powder with the particle size of less than or equal to 0.088 mm, 0.3 to 0.6 percent of straw fiber, 0.5 to 0.8 percent of waste newspaper fiber, 0.1 to 0.2 percent of 130-DEG C explosion-proof hollow fiber, 0.2 to 0.4 percent of calcium lignosulphonate, 0.02 to 0.04 percent of explosion-proof agent, 0.05 to 0.08 percent of polycarboxylic acid water reducing agent, 2 to 5 percent of alkaline silica powder and 0.5 to 1 percent of plasticizer PT30L.
本发明提供一种中包耐火涂料，该涂料产品具有现场施工时加水少，使用时具有一定塑性，上线预烘烤时间短，抗侵蚀能力强的中间包工作层。具体地，本发明提供的中间包耐火可塑涂料，按重量百分比计由25‑45% 粒度为3‑1mm 的95中档镁砂、20‑30% 粒度为1‑0.5mm 的95中档镁砂、30‑40% 粒度≤0.088mm 的95中档镁砂粉、0.3‑0.6% 稻草纤维、0.5‑0.8% 废旧报纸纤维、0.1‑0.2% 130℃防爆型空芯纤维、0.2‑0.4% 木质素磺酸钙、0.02‑0.04%防爆剂、0.05‑0.08% 聚羧酸类减水剂、2‑5%碱性硅微粉、0.5‑1%增塑剂PT30L组成。
Tundish fire-resistant plastic coating and preparation method thereof
The invention provides a tundish fire-resistant coating. The coating product has a tundish working layer which is less in water addition during site construction, has certain plasticity during use, and is short in on-line pre-baking time and high in erosion resistance. Specifically, the tundish fire-resistant plastic coating is prepared from the following components in percentage by weight: 25 to 45 percent of 95 medium-grade magnesia with the particle size of 3 to 1 mm, 20 to 30 percent of 95 medium-grade magnesia with the particle size of 1 to 0.5 mm, 30 to 40 percent of 95 medium-grade magnesia powder with the particle size of less than or equal to 0.088 mm, 0.3 to 0.6 percent of straw fiber, 0.5 to 0.8 percent of waste newspaper fiber, 0.1 to 0.2 percent of 130-DEG C explosion-proof hollow fiber, 0.2 to 0.4 percent of calcium lignosulphonate, 0.02 to 0.04 percent of explosion-proof agent, 0.05 to 0.08 percent of polycarboxylic acid water reducing agent, 2 to 5 percent of alkaline silica powder and 0.5 to 1 percent of plasticizer PT30L.
本发明提供一种中包耐火涂料，该涂料产品具有现场施工时加水少，使用时具有一定塑性，上线预烘烤时间短，抗侵蚀能力强的中间包工作层。具体地，本发明提供的中间包耐火可塑涂料，按重量百分比计由25‑45% 粒度为3‑1mm 的95中档镁砂、20‑30% 粒度为1‑0.5mm 的95中档镁砂、30‑40% 粒度≤0.088mm 的95中档镁砂粉、0.3‑0.6% 稻草纤维、0.5‑0.8% 废旧报纸纤维、0.1‑0.2% 130℃防爆型空芯纤维、0.2‑0.4% 木质素磺酸钙、0.02‑0.04%防爆剂、0.05‑0.08% 聚羧酸类减水剂、2‑5%碱性硅微粉、0.5‑1%增塑剂PT30L组成。
Tundish fire-resistant plastic coating and preparation method thereof
一种中间包耐火可塑涂料及其制备方法
YUE WENPENG (Autor:in) / CHANG DESHI (Autor:in)
28.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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