Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-thermal-conductivity sand mold material and preparation method thereof
The invention relates to a high-thermal-conductivity sand mold material and a preparation method thereof, a sand mold is divided into two layers, the inner layer is a high-temperature heat conduction layer, and the outer layer is a metal powder heat conduction layer. The main raw materials of the high-temperature heat conduction layer comprise fused corundum recycled aggregate, SiC aggregate, alpha-aluminum oxide micro powder, an aluminum dihydrogen phosphate solution and polyaluminum chloride; the main raw materials of the metal powder heat conduction layer comprise iron oxide powder, bauxite micro powder, an aluminum dihydrogen phosphate solution and electric smelting AZS recycled aggregate. By adopting the high-thermal-conductivity casting sand mold as a casting mold, the stress cracking phenomenon on the surface of the zirconium chromium corundum green body is obviously reduced, the product percent of pass of the material is obviously increased, and the problem of stress fracture in the casting zirconium chromium corundum annealing process can be effectively solved.
本发明涉及一种高导热砂型模具材料及其制备方法，其砂型模具分为两层，内层为高温导热层，外层为金属粉体导热层。高温导热层主要原料有电熔刚玉回收骨料，SiC骨料，α‑氧化铝微粉，磷酸二氢铝溶液，多聚氯化铝；金属粉体导热层主要原料有氧化铁粉末，铝矾土微粉，磷酸二氢铝溶液，电熔AZS回收骨料。通过采用高导热熔铸砂型作为浇铸模具，锆铬刚玉坯体表面的应力开裂现象明显降低，材料的产品合格率显著上升，本发明能有效解决熔铸锆铬刚玉退火过程中的应力断裂问题。
High-thermal-conductivity sand mold material and preparation method thereof
The invention relates to a high-thermal-conductivity sand mold material and a preparation method thereof, a sand mold is divided into two layers, the inner layer is a high-temperature heat conduction layer, and the outer layer is a metal powder heat conduction layer. The main raw materials of the high-temperature heat conduction layer comprise fused corundum recycled aggregate, SiC aggregate, alpha-aluminum oxide micro powder, an aluminum dihydrogen phosphate solution and polyaluminum chloride; the main raw materials of the metal powder heat conduction layer comprise iron oxide powder, bauxite micro powder, an aluminum dihydrogen phosphate solution and electric smelting AZS recycled aggregate. By adopting the high-thermal-conductivity casting sand mold as a casting mold, the stress cracking phenomenon on the surface of the zirconium chromium corundum green body is obviously reduced, the product percent of pass of the material is obviously increased, and the problem of stress fracture in the casting zirconium chromium corundum annealing process can be effectively solved.
本发明涉及一种高导热砂型模具材料及其制备方法，其砂型模具分为两层，内层为高温导热层，外层为金属粉体导热层。高温导热层主要原料有电熔刚玉回收骨料，SiC骨料，α‑氧化铝微粉，磷酸二氢铝溶液，多聚氯化铝；金属粉体导热层主要原料有氧化铁粉末，铝矾土微粉，磷酸二氢铝溶液，电熔AZS回收骨料。通过采用高导热熔铸砂型作为浇铸模具，锆铬刚玉坯体表面的应力开裂现象明显降低，材料的产品合格率显著上升，本发明能有效解决熔铸锆铬刚玉退火过程中的应力断裂问题。
High-thermal-conductivity sand mold material and preparation method thereof
一种高导热砂型模具材料及其制备方法
WANG JUNTAO (Autor:in) / WEI HAN (Autor:in) / HU JIANHUI (Autor:in) / YIN CHAONAN (Autor:in) / MAO LIMIN (Autor:in) / YANG HAIYUN (Autor:in) / LIU JIWANG (Autor:in) / LI HUAN (Autor:in) / CHEN SONGLIN (Autor:in)
29.10.2024
Patent
Elektronische Ressource
Chinesisch
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