Manufacturing method for recycled aluminum ingot, manufacturing method for recycled aluminum can component

By melting and mixing JIS 3000-series aluminum cans and caps, the method addresses the inefficiency of existing recycling methods, enabling the production of recycled ingots with minimal new ingot use and optimal alloy composition.

JP7735817B2Active Publication Date: 2025-09-09ALTEMIRA CO LTD
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Patent Information

Application Number
JP2021189880
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-11-24
Publication Date
2025-09-09
Estimated Expiration
2041-11-24

AI Technical Summary

Technical Problem

Existing methods for recycling aluminum cans struggle to produce recycled ingots that minimize the use of new ingots, particularly when dealing with mixed materials like bottle-shaped cans and their caps, leading to inefficiencies and excess magnesium content.

Method used

A method that involves melting and mixing used aluminum cans, including bottle-shaped cans and caps made of JIS 3000-series alloys, to produce recycled ingots without the need for new ingots, by adjusting the alloy composition through the use of JIS 3000-series recycled materials.

Benefits of technology

This approach allows for the production of recycled JIS 3000-series aluminum ingots efficiently, reducing the reliance on new ingots and maintaining the desired alloy composition, thereby maximizing the use of recycled materials.

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Abstract

To make a regeneration rate of an aluminum-made used can into a constituent member for am aluminum-made can approach 100% or become 100%.SOLUTION: A method for manufacturing an aluminum regenerated lump manufactures a JIS3000 series aluminum regenerated lump by a dissolution step of mixing a recovered material composed of a used JIS 3000 series bottle-like can with a cap in which a cap composed of a JIS 3000 series aluminum alloy is mounted, with a mixed and recovered material containing a used cylindrical can with a lid in which a lid composed of a JIS 5000 series aluminum alloy is mounted on an opening of a cylindrical can composed of a JIS 3000 series aluminum alloy, and a used bottle-like can with a cap in which a cap composed of a JIS 5000 series aluminum alloy is mounted on a screw part of a bottle-like can composed of a JIS 3000 series aluminum alloy, and dissolving the mixture, and a casting step of casting a regenerated lump from molten metal of the dissolved aluminum.SELECTED DRAWING: Figure 1
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