METHOD FOR PRODUCING A SHEET OF magnesium alloy rolled coil magnesium alloy

摘要

1. A method of manufacturing a magnesium alloy sheet, wherein the sheet is rolled starting material consisting of a magnesium alloy, and the resulting long roll sheet rolled into a roll to obtain a rolled sheet of magnesium alloy, the method includes: a step of heating in which heated sheet starting material and a step of rolling, in which hot-rolled sheet starting material via nip roll; a step of coagulation, in which the roll rolled sheet into a roll, wherein in the step of heating the heating temperature of the starting material sheet is 280 ° C or less, the temperature nip roll surface in the step of rolling is 230 ° C or more and 290 ° C or less, a step of heating , rolling step and the coagulation step is carried out repeatedly a plurality raz.2 continuous manner. sheet manufacturing method of a magnesium alloy according to claim 1, wherein the magnesium alloy contains aluminum in an amount of 7.0% by weight or more and 12.0% or less by masse.3. sheet manufacturing method of a magnesium alloy according to claim 1, wherein the surface temperature variation (difference between the maximum temperature and the minimum temperature) in the nip roll width direction nip roll is 10 ° C or menee.4. A method of manufacturing a magnesium alloy sheet according to claim 1, wherein all passageways, including final pass rolling, the temperature of the starting material sheet just before rolling is 150 ° C or more and 280 ° C or menee.5. sheet manufacturing method of a magnesium alloy according to claim 1, wherein a difference between the temperature of the starting material sheet just before rolling and the surface temperature of the crimp wa