公开(公告)号：US5913989A

公开(公告)日：1999-06-22

申请号：US676801

申请日：1996-07-08

Applicant: Paul Wycliffe ,  Ed Luce ,  David J. Lloyd ,  John Fitzsimon ,  Gene Burger

Inventor： Paul Wycliffe ,  Ed Luce ,  David J. Lloyd ,  John Fitzsimon ,  Gene Burger

IPC: C22F1/00 ,  C22C21/00 ,  C22C21/06 ,  C22F1/047

CPC classification number: C22F1/047 ,  C22C21/00

Abstract: A process of manufacturing aluminum can body stock involving the following steps. A molten aluminum alloy is prepared, the alloy containing Mg in the range 1.1 to 1.5% by weight, Mn in the range 0.4 to 0.9% by weight, Cu in the range 0.2 to 0.4% by weight, Fe in the range 0.2 to 0.7% by weight, Si in the range 0.07 to 0.3% by weight, all other elements each less than 0.05% by weight to a maximum of 0.2% for all other elements. The alloy is cast in a continuous strip casting process to produce a slab having a thickness of at least 9 mm. The slab is rolled using at least 83% reduction to produce a re-roll strip. The re-roll strip is coiled to form a coil and the coil to cool is allowed to cool naturally. The re-roll strip is then annealed and cold rolled to a final gauge of between 0.26 and 0.4 mm, using a reduction of between 75 and 85%, with no interanneal. The resulting strip can be used as can body stock having a 45 degree earing of less than 3% and a yield strength after stoving of at least 38.5 ksi (265 MPa).

Abstract translation: 制造铝罐体的方法，涉及以下步骤。 制备熔融铝合金，含有1.1〜1.5重量％的Mg，0.4〜0.9重量％的Mn，0.2〜0.4重量％的Cu，0.2〜0.7的Fe的合金 重量％，Si在0.07〜0.3重量％的范围内，对于所有其他元素，所有其它元素均小于0.05重量％，最多0.2重量％。 将该合金铸造在连续带材铸造工艺中以生产厚度至少为9mm的板坯。 使用至少83％的压缩轧制板坯以产生再轧带材。 重卷条卷起形成线圈，使冷却线圈自然冷却。 然后将再轧带材退火并冷轧至最终规格在0.26至0.4mm之间，使用75％至85％之间的还原，无中间膜。 所得到的带材可以用作具有小于3％的45度耳度和烘烤至少38.5ksi（265MPa））后的屈服强度的罐体材料。