公开(公告)号：WO1993020253A1

公开(公告)日：1993-10-14

申请号：PCT/US1993002994

申请日：1993-03-30

Applicant: REYNOLDS METALS COMPANY

Inventor： REYNOLDS METALS COMPANY ,  WADE, Kenneth, D.

IPC: C22F01/04

CPC classification number: C22F1/04 ,  C22C21/00

Abstract: An aluminum-based alloy composition having improved corrosion resistance and high extrudability consists essentially of about 0.1-0.5 % by weight of manganese, about 0.05-0.12 % by weight of silicon, about 0.01-0.20 % by weight of titanium, about 0.15-0.25 % by weight of iron and the balance aluminum, wherein the aluminum alloy is essentially copper free. The inventive alloy is useful in automotive applications, in particular, heat exchanger tubing and finstock, and foil packaging. The process provided by the invention uses a high extrusion ratio and produces a product having high corrosion resistance.

公开(公告)号：WO1995027091A1

公开(公告)日：1995-10-12

申请号：PCT/US1995003904

申请日：1995-03-29

Applicant: REYNOLDS METALS COMPANY

Inventor： REYNOLDS METALS COMPANY ,  WADE, Kenneth, D. ,  SKILLINGBERG, Michael, H.

IPC: C22F01/04

CPC classification number: C22F1/05 ,  C22F1/057

Abstract: In a method of extruding a 6000-series aluminum alloy by casting, homogenizing, extruding and, optionally, aging and/or heat treating, an alloy composition is provided having silicon .6-1.2 wt. %, magnesium .7-1.2 wt. %, copper .3-1.1 wt. %, manganese .1-.8 wt. %, zirconium .05-.25 wt. %, up to .5 wt. % iron, up to .15 wt. % chromium, up to .25 wt. % zinc, up to .10 wt. % titanium with the balance aluminum and incidental impurities wherein an effective amount of zirconium, in combination with effective amounts of manganese, produces a fibrous grain structure which contributes to a combination of high strength and fracture toughness in the extruded alloy. The fibrous grain structure also permits improvements in forming the extrusion by enabling lower temperatures to be utilized during the homogenization step. The figure shows a schematic diagram of an extrusion process according to the invention.

Abstract translation: 在通过铸造，均化，挤出和任选地老化和/或热处理挤出6000系铝合金的方法中，提供了具有硅的合金组合物。 ％，镁.7-1.2wt。 ％，铜.3-1.1重量％ ％，锰.1 .8wt。 ％，锆.05-25wt。 ％，高达0.5wt。 ％铁，高达0.15wt。 ％铬，至多0.25重量％ ％锌，高达0.10wt。 具有余量的铝和偶然杂质的钛，其中有效量的锆与有效量的锰结合产生纤维颗粒结构，这有助于挤出合金中的高强度和断裂韧性的组合。 纤维颗粒结构还允许通过在均质化步骤期间使用较低温度来改进形成挤出。 该图示出了根据本发明的挤出方法的示意图。