Seamless cored wire for preparing Al-based composite coating with high aluminum oxide content and preparation method of seamless cored wire

The invention relates to the technical field of material processing engineering, in particular to a seamless cored wire for preparing an Al-based composite coating with high aluminum oxide content and a preparation method of the seamless cored wire. The powder core wire is obtained by wrapping a powder core with an industrial pure aluminum tube and performing rotary forging, the powder core comprises aluminum alloy powder and Al2O3 ceramic powder, and the total content of the aluminum oxide ceramic powder in the powder core is larger than or equal to 30 wt%. The powder core wire with the high Al2O3 content can be prepared by regulating and controlling the components of the powder core wire and combining the rotary swaging technology, the powder core wire is smooth in surface, high in density and high in heat conduction efficiency and is particularly suitable for preparing a high-abrasion-resistance electric arc spraying coating, the prepared coating is well combined with a base body, no obvious defect exists