US 2026/0176715 A1Published application

Production method for baseball bats based on 6-series recycled aluminum

AssigneeZhongshan Arthur Melody Co., Ltd.

InventorQingmei GUO

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Abstract

A production method for baseball bats based on 6-series recycled aluminum is provided, which includes steps such as pretreatment, melting, casting, homogenization treatment, extrusion, drawing, and subsequent processing. In the casting step, the crystallizer adopts electromagnetic stirring treatment to disperse larger Fe containing phases. In the homogenization treatment step, it is divided into primary and secondary homogenization two stages. The purpose of the primary homogenization treatment is to dissolve the Mg2Si phase with a low melting point into the matrix, and the purpose of the secondary homogenization treatment is to transform the elongated β-AlFeSi into spherical α-Al(FeMn)Si to eliminate harmful Fe phases. Heating treatment is used on the drawing mold during the drawing process, and warm forming helps to make aluminum alloy drawing smoother, reduce cracking, and eliminate the need to add other alloys during the production process of recycled aluminum melting.

Claims3

Dependent claims

A production method for baseball bats based on 6-series recycled aluminum, comprising:

(1) pre-treatment:
performing pre-treatment on waste aluminum alloy baseball bats to obtain recycled aluminum raw materials;
(2) melting:
putting the recycled aluminum raw materials into a melting furnace for melting, with a melting temperature of 700-750° C.;
after the recycled aluminum raw materials are completely melted, removing a surface floating slag, then passing through a deep bed filtration and degassing process to obtain recycled aluminum liquid;
(3) casting:
allowing the recycled aluminum liquid to enter the electromagnetic casting crystallizer through a flow channel, and the recycled aluminum liquid is cast into a cast rod with a required diameter;
(4) homogenization treatment:
performing two stage homogenization treatment on the cast rod, with a primary homogenization at a temperature of 520-550° C. and a time of 4-7 hours;
and a secondary homogenization at a temperature of 550-570° C. and a time of 5-10 hours;
(5) extrusion:
heating the cast rod to 430-460° C., heating an extrusion mold to 420-450° C., with an extruding speed of 0.3-1 mm/s, and extruding the cast rod into a tubing with a desired diameter;
(6) drawing:
cutting the tubing into appropriate lengths, then placing the cut tubing in a drawing mold for drawing and stretching;
heating the drawing mold during the drawing and stretching process, and achieve an initial shape of a finished product through multiple drawing processes;
(7) subsequent processing.

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Dependencies are inferred from the claim text.