自50年代后期以来,供给北美制罐业的国产制罐坯料持续不断地大量增加。铝罐坯料的厚度一直在稳步地减小,并有较新的合金出现。这一领域还不断地出现更先进的热机械加工工艺,以满足容器罐的性能及成形性要求。本文旨在简单地回顾制罐坯料的发展历史与市场现状,以 Crown Cork & Seal 包装公司的观点说明需要改善的各个方面,重点论述饮料罐的罐体、罐盖及拉环坯料。 Since the late 1950s, domestic can billets supplied to the North American canning industry have continued to increase substantially. The thickness of the aluminum can blank has been steadily decreasing and newer alloys have emerged. More advanced thermomechanical processes continue to emerge in this area to meet the performance and formability requirements of container cans. The purpose of this article is to briefly review the history and current market conditions of can blanks and to illustrate the areas that need improvement with Crown Cork & Seal Packaging’s point of view, with a particular focus on cans, cans and billet blanks for beverage cans.