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最近20年来,用于建筑业的铝合金已占世界铝合金总产量的15%。其中,美国、日本和联邦德国用于建筑中的铝合金已占这些国家铝合金总产量的20~30%。苏联1978年出版的《铝合金手册》中介绍了54种铝合金的物理性质和化学性质。铝合金的比重约为钢铁的1/3,破坏强度为800~6500千克力/厘米~2,相对伸长率相应地为35~6%。各种型号的铝合金的弹
In the recent 20 years, aluminum alloys used in the construction industry have accounted for 15% of the total aluminum alloy production in the world. Among them, aluminum alloys used in construction in the United States, Japan, and the Federal Republic of Germany account for 20-30% of the total aluminum alloy production in these countries. The “Aluminum Alloy Handbook” published by the Soviet Union in 1978 introduced the physical and chemical properties of 54 aluminum alloys. The specific gravity of the aluminum alloy is approximately 1/3 of the steel, the breaking strength is 800 to 6500 kgf/cm~2, and the relative elongation is correspondingly 35 to 6%. Various types of aluminum alloy shells