Patent ID: 11969783
Assignee: MAGNA INTERNATIONAL INC.
Field: Materials, metallurgy (Chemistry)
Classification: CPC B  C  Y | IPC B

Claim 0:
1. An insert for a shot sleeve of a die casting apparatus, the insert comprising:
a base layer including metal;
an inner layer including ceramic;
at least one middle layer between the base layer and the inner layer;
the at least one middle layer including metal in an amount greater than an amount of metal in the inner layer and less than an amount of the metal in the base layer; and
the at least one middle layer including ceramic in an amount less than an amount of the ceramic in the inner layer and greater than an amount of ceramic in the base layer,
wherein the metal of the base layer and the metal of the at least one middle layer includes steel; the metal of the at least one middle layer further includes an alloy of chromium, iron, and molybdenum; and the ceramic of the at least one middle layer and the ceramic of the inner layer includes zirconium oxide.