Patent ID: 11904386
Assignee: CITIC DICASTAL CO., LTD.
Field: Materials, metallurgy (Chemistry)
Classification: CPC B | IPC B

Claim 6:
7. The casting ladle for casting aluminum alloy according to claim 1, wherein the second thermal insulation layer is composed of the second Al2O3 particles, the second SiO2 particles, the second CaO particles, the second MgO particles, and a second binder, wherein the second Al2O3 particles have a size of 60-100 μm, the second SiO2 particles have a size of 50-65 μm, the second CaO particles have a size of 5-10 μm, and the second MgO particles have a size of 5-10 μm;
a proportion of the second Al2O3 particles is 40-50 wt %, a proportion of the second SiO2 particles is 36-46 wt %, a proportion of the second CaO particles is 3-5 wt %, a proportion of the first MgO particles is 3-5 wt %, and a proportion of the second binder is 4-8 wt %, based on a total weight of the second thermal insulation layer.