Preparation process of ultrahigh magnesuim-aluminum alloy panel

• Main Authors: ZHAO QIZHONG, HE JIANXIAN, ZHANG XINMING, LI CHENGBO, YANG HONGCHI, ZHU XIYI
• Format: Patent
• Language: Chinese; English
• Published: 06.07.2018
• Subjects: ALLOYS; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a preparation process of an ultrahigh magnesuim-aluminum alloy panel. The preparation method comprises the following steps: (1) smelting, refining and casting a raw material ofan ultrahigh magnesuim-aluminum alloy successively; (2) double-stage uniform heat treatment: carrying out saw cutting and milling after uniform thermal treatment; (3) preheating and hot rolling: reserving the cold rolling reduction ratio of 15-50% for a cold rolled thin plate; (4) cold rolling, wherein the cold rolling reduction ratio is 7-40%, carrying out intermediate annealing at 270-450 DEG Cat the heating rate of 10-70 DEG C/h, keeping the temperature for 1-10 h, cooling to room temperature, and then carrying out cold rolling again, wherein the rolling reduction ratio is 8-22%; and (5)carrying out stabilized annealing to obtain the ultrahigh magnesuim-aluminum alloy panel. The strength of the obtained alloy state panel is higher 5083-H321/H116, and the problem that the production difficulty of highly alloyed