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Chrome corundum spinel tapping hole brick for eccentric electric furnace and preparation method thereof
The invention discloses a chrome corundum spinel tapping hole brick for an eccentric electric furnace and a preparation method thereof. The chrome corundum spinel tapping hole brick comprises a dry material and water additionally added during casting moulding, wherein the dry material is composed of the following components by mass percentage: 30-40wt% of tabular corundum particles, 15-30wt% of white corundum particles, 6-15wt% of aluminum-magnesium spinel particles, 2-18wt% of aluminum-magnesium spinel powder, 8-20wt% of fused white corundum powder, 1-10wt% of alpha-Al2O3 micro powder, 0.5-3.0wt% of chromium oxide micro powder, 3-10wt% of a binding agent and a dispersing agent, and 3-8wt% of water. The tapping hole brick provided by the invention is uniform in texture and excellent in performance, and has the remarkable advantages of high strength, good thermal shock resistance, stripping resistance, steel slag corrosion resistance and the like.
一种偏心电炉用铬刚玉尖晶石质出钢口头砖及其制备方法，包括干料和浇注成型时外加的水，所述的干料由以下质量百分比的组分构成：板状刚玉颗粒30～40wt%、白刚玉颗粒15～30wt%、铝镁尖晶石颗粒6～15wt%、铝镁尖晶石粉2～18wt%、电熔白刚玉粉8～20wt%、α‑Al2O3微粉1～10wt%、氧化铬微粉0.5～3.0wt%、结合剂和分散剂3～10wt%，外加占原料总重量3～8wt%的水。本发明的出钢口头砖质地均匀，性能优异，具有强度高、抗热震性能好、抗剥落、抗钢渣侵蚀等显著优势。
Chrome corundum spinel tapping hole brick for eccentric electric furnace and preparation method thereof
The invention discloses a chrome corundum spinel tapping hole brick for an eccentric electric furnace and a preparation method thereof. The chrome corundum spinel tapping hole brick comprises a dry material and water additionally added during casting moulding, wherein the dry material is composed of the following components by mass percentage: 30-40wt% of tabular corundum particles, 15-30wt% of white corundum particles, 6-15wt% of aluminum-magnesium spinel particles, 2-18wt% of aluminum-magnesium spinel powder, 8-20wt% of fused white corundum powder, 1-10wt% of alpha-Al2O3 micro powder, 0.5-3.0wt% of chromium oxide micro powder, 3-10wt% of a binding agent and a dispersing agent, and 3-8wt% of water. The tapping hole brick provided by the invention is uniform in texture and excellent in performance, and has the remarkable advantages of high strength, good thermal shock resistance, stripping resistance, steel slag corrosion resistance and the like.
一种偏心电炉用铬刚玉尖晶石质出钢口头砖及其制备方法，包括干料和浇注成型时外加的水，所述的干料由以下质量百分比的组分构成：板状刚玉颗粒30～40wt%、白刚玉颗粒15～30wt%、铝镁尖晶石颗粒6～15wt%、铝镁尖晶石粉2～18wt%、电熔白刚玉粉8～20wt%、α‑Al2O3微粉1～10wt%、氧化铬微粉0.5～3.0wt%、结合剂和分散剂3～10wt%，外加占原料总重量3～8wt%的水。本发明的出钢口头砖质地均匀，性能优异，具有强度高、抗热震性能好、抗剥落、抗钢渣侵蚀等显著优势。
Chrome corundum spinel tapping hole brick for eccentric electric furnace and preparation method thereof
一种偏心电炉用铬刚玉尖晶石质出钢口头砖及其制备方法
CHEN ZHENGCHANG (author) / YU WENXU (author) / MA JUNQIANG (author) / YU JINHONG (author) / CHEN SIYU (author)
2021-03-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2023
| European Patent Office | 2023
| European Patent Office | 2021
| European Patent Office | 2023
| European Patent Office | 2022