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強化鋁板的方法

來源:http://www.fuzore.com  發布時間:2019-03-14 11:04:47  

1.加工強化鋁板
1. Processing strengthened aluminium sheet
加工強化也稱冷作硬化,就是鋁板在再結晶溫度以下冷變形加工如鍛造、壓延、拉拔、拉伸等,冷變形時,鋁板內部位錯密度增大,且互相纏結并構成胞狀結構,阻止位錯運動。變形度越大位錯纏結越嚴峻,變形抗力越大,強度越高。冷變形后強化的水平隨變形度、變形溫度及材料本身的性質而不一樣。同一材料在同一溫度下冷變形時,變形度越大則強度越高,塑性則越低。
Processing hardening is also called cold work hardening, which means that the aluminum sheet is cold deformed below the recrystallization temperature, such as forging, calendering, drawing, drawing, etc. During cold deformation, the dislocation density inside the aluminum sheet increases, and intertwines with each other to form a cellular structure to prevent dislocation movement.  The larger the deformation degree, the more severe the dislocation entanglement, the greater the deformation resistance and the higher the strength. The level of hardening after cold deformation varies with the degree of deformation, the temperature of deformation and the nature of the material itself. When the same material is cold deformed at the same temperature, the greater the deformation degree, the higher the strength and the lower the plasticity.
2.固溶強化鋁板
2. Solution strengthened aluminium sheet
在純鋁中添加某些合金元素構成無限固溶體或有限固溶體,不只能獲得高的強度,而且還能獲得優秀的塑性與出色的壓力加工功用。在通常鋁板中固溶強化較常用的合金元素是銅、鎂、錳、鋅、硅、鎳等元素。通常鋁板的合金化都構成有限的固溶體,如Al-Cu,Al-Mg,Al-Zn,Al-Si,Al-Mn等二元合金均構成有限固溶體,而且都有較大的極限溶解度能起較大的固溶強化作用。
Adding some alloying elements to pure aluminium to form infinite solid solution or finite solid solution can not only obtain high strength, but also obtain excellent plasticity and excellent pressure processing function. The most commonly used alloying elements in solution strengthening of aluminium sheets are copper, magnesium, manganese, zinc, silicon and nickel. Usually, the alloying of aluminium sheets constitutes a limited solid solution, such as Al-Cu, Al-Mg, Al-Zn, Al-Si, Al-Mn binary alloys, which constitute a limited solid solution, and all have a larger limit solubility which can play a larger role in solid solution strengthening.

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經過強化的鋁板,其硬度功用都會得到顯著進步,可是其硬度無法一向進步下去;當抵達硬度上限的時分,不論何種方法,都無法持續進步鋁板的硬度,只能選擇根底硬度就更高的商標。
After strengthening, the hardness function of aluminium sheet will be improved remarkably, but its hardness can not always improve; when the upper limit of hardness is reached, no matter what method, the hardness of aluminium sheet can not be improved continuously, only the trademark with higher hardness at the bottom can be chosen.

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