A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Composite binding agent for ramming material, chrome corundum ramming material and preparation method of chrome corundum ramming material
The invention relates to a composite binding agent for a ramming material, a chrome corundum ramming material and a preparation method of the chrome corundum ramming material. The composite binding agent is composed of a base material, cationic starch, oxalic acid and aluminum oxide short fibers. The base material is prepared from the following raw materials in parts by weight: 3 to 5 parts of Suzhou clay, 3 to 5 parts of alumina cement, 3 to 5 parts of active SiO2 micro powder, 2 to 3 parts of ceramic superfine powder, 4 to 6 parts of magnesia fine powder, 1.5 to 2 parts of polyaluminum ferric chloride, 0.5 to 1 part of Cr2O3 micro powder and 0.5 to 1 part of calcium chromate. The composite binding agent has the advantages that the obtained composite binding agent can effectively reduce the sintering temperature of a material and improve the sintering strength and thermal shock resistance of the material; when the obtained composite binding agent is applied to the chrome corundum ramming material, an aggregate structure rich in Cr2O3 can be formed on the surface of electric smelting high-chromium sand, and high-chromium sand aggregate is strongly connected with a matrix, so that the chrome corundum ramming material with low chromium content and high thermal shock stability is formed.
本发明涉及一种用于捣打料的复合结合剂、铬刚玉捣打料及其制备方法，该复合结合剂是由基料、阳离子淀粉、草酸、氧化铝短纤维组成；所述基料是由以下重量份的原料组成：苏州土3～5份，矾土水泥3～5份，活性SiO2微粉3～5份，陶瓷超微粉2～3份，镁砂细粉4～6份，聚合氯化铝铁1.5～2份，Cr2O3微粉0.5～1份，铬酸钙0.5～1份。本发明具有的优点是所得复合结合剂能够有效降低材料的烧结温度，提升材料的烧结强度和热震稳定性；将所得复合结合剂应用于铬刚玉捣打料内，能够在电熔高铬砂表面形成富含Cr2O3的骨料结构，并将高铬砂骨料与基质强力连接，以形成低铬含量、高热震稳定性的铬刚玉捣打料。
Composite binding agent for ramming material, chrome corundum ramming material and preparation method of chrome corundum ramming material
The invention relates to a composite binding agent for a ramming material, a chrome corundum ramming material and a preparation method of the chrome corundum ramming material. The composite binding agent is composed of a base material, cationic starch, oxalic acid and aluminum oxide short fibers. The base material is prepared from the following raw materials in parts by weight: 3 to 5 parts of Suzhou clay, 3 to 5 parts of alumina cement, 3 to 5 parts of active SiO2 micro powder, 2 to 3 parts of ceramic superfine powder, 4 to 6 parts of magnesia fine powder, 1.5 to 2 parts of polyaluminum ferric chloride, 0.5 to 1 part of Cr2O3 micro powder and 0.5 to 1 part of calcium chromate. The composite binding agent has the advantages that the obtained composite binding agent can effectively reduce the sintering temperature of a material and improve the sintering strength and thermal shock resistance of the material; when the obtained composite binding agent is applied to the chrome corundum ramming material, an aggregate structure rich in Cr2O3 can be formed on the surface of electric smelting high-chromium sand, and high-chromium sand aggregate is strongly connected with a matrix, so that the chrome corundum ramming material with low chromium content and high thermal shock stability is formed.
本发明涉及一种用于捣打料的复合结合剂、铬刚玉捣打料及其制备方法，该复合结合剂是由基料、阳离子淀粉、草酸、氧化铝短纤维组成；所述基料是由以下重量份的原料组成：苏州土3～5份，矾土水泥3～5份，活性SiO2微粉3～5份，陶瓷超微粉2～3份，镁砂细粉4～6份，聚合氯化铝铁1.5～2份，Cr2O3微粉0.5～1份，铬酸钙0.5～1份。本发明具有的优点是所得复合结合剂能够有效降低材料的烧结温度，提升材料的烧结强度和热震稳定性；将所得复合结合剂应用于铬刚玉捣打料内，能够在电熔高铬砂表面形成富含Cr2O3的骨料结构，并将高铬砂骨料与基质强力连接，以形成低铬含量、高热震稳定性的铬刚玉捣打料。
Composite binding agent for ramming material, chrome corundum ramming material and preparation method of chrome corundum ramming material
一种用于捣打料的复合结合剂、铬刚玉捣打料及其制备方法
HE GUANTONG (author) / GUO HONGXIANG (author) / WAN JUN (author) / LI FANG (author) / LI NAIWU (author) / LI XIANG (author) / XIA MIAOMIAO (author) / CHEN PEIPEI (author)
2023-08-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
Ramming material for ferrosilicon ladle and preparation method of ramming material
| European Patent Office | 2022