With the development of modern high temperature ceramics and electronics industry, cold rolling molybdenum sheet is largely needed and it has very strict quality requirements to it.
Under the recrystallization temperature, a great deal of cold rolling molybdenum sheet will be out of shape, which will make molybdenum sheet form strong rolling structure. The existance of this kind of rolling structure will lead rolling directions of molybdenum plate in 45 degrees, and mechanical properties in the vertical direction have notable differences.
The deformation of this seriously anisotropic molybdenum plate is very uneven in the secondary forming process, such as in deep-draw cup type products often appear symmetrical "ear" which must be removed in further processing. When cold rolling molybdenum sheet is used as U shaped winding molybdenum anode, emptying material can only along with the rolling direction in 45 degrees.
So, it needs to remove mechanical properties anisotropic of molybdenum sheet.
