Stirring device for a semi-solid metal slurry and method and system for producing a semi-solid metal slurry using such a stirring device
AssigneePa Invest AB
InventorPer JANSSON
Life of this patent
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Abstract
A stirring device to be used for stirring a semi-solid metal slurry, wherein the stirring device is to rotate around a rotational axis (X-X) when used for stirring a semisolid metal slurry. The stirring device includes an elongated shaft extending along the rotational axis (X-X), and at least two wings securely arranged to the elongated shaft and extending radially outwards from the elongated shaft, wherein the at least two wings also have a substantial axial extension along the rotational axis (X-X). Hereby, whirls are produced in the slurry that results in a well-homogenized slurry with no large metal oxide surfaces inside. Disclosed is also a production method and a system for producing the slurry.
Claims14
A stirring device to be used for stirring a semi-solid metal slurry, wherein the stirring device is to rotate around a rotational axis (X-X) when used for stirring a semisolid metal slurry, the stirring device comprising:
- an elongated shaft extending along the rotational axis (X-X), and
- at least two wings securely arranged to the elongated shaft and extending radially outwards from the elongated shaft, wherein the at least two wings also have a substantial axial extension along the rotational axis (X-X), the axial extension of the wings at the elongated shaft being at least 15% of a total length of the elongated shaft.
Dependencies are inferred from the claim text.