Aging process for improving impact resistance of aluminum alloy laminated composite plate

• Main Authors: WEN SHENGPING, HUANG HUI, RONG LI, WU XIAOLAN, WEI WU, QI PENG, MIN FANLEI, NIE ZUOREN, GAO KUNYUAN, DOU YIWU
• Format: Patent
• Language: Chinese; English
• Published: 23.05.2023
• Subjects: ALLOYS; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

An aging process for improving impact resistance of an aluminum alloy laminated composite plate belongs to the technical field of non-ferrous metals, and comprises the following steps: rolling two laminated composite plates with relatively large difference in Zn content and Mg content to obtain the laminated composite plate with the total thickness of 5.0 mm, the thickness of an Al-0. 0Zn-3.0 Mg alloy is 4.07 mm, the thickness of an Al-4. 4Zn-2.3 Mg alloy is 0.93 mm, then carrying out unified solution treatment on the composite plate at 470 DEG C/1 h, and carrying out aging treatment on the composite plate at 470 DEG C/1 h to obtain the impact resistance of the aluminum alloy laminated composite plate. And uniform aging treatment is further carried out, and the aging process is that heat preservation is carried out for 36-60 h at the temperature of 105-110 DEG C. The obtained laminated composite board has high impact strength and good impact toughness. 一种提高铝合金叠层复合板抗冲击性能的时效工艺，属于有色金属技术领域，对两种Zn、Mg含量差别较大的叠层复合板轧制，