About the material selection and rolling process of hot-rolled molybdenum plate and cold-rolled molybdenum plate, we continue to improve and innovate, so that the quality of hot-rolled molybdenum plate and cold-rolled molybdenum plate continues to improve, to provide users with high purity, high performance molybdenum plate. On molybdenum plate rolling precautions and you share.

Hot rolling is carried out on a mill with a width of 650mm, and the intermediate annealing is carried out in a H protected furnace.

Since the size of cold-rolled finished molybdenum plate is 0.4 ~ 0.5×700 ~ 800×2000 ~ 3000mm, the size of hot-rolled slab must be increased. According to the test, it is more suitable to choose a single weight of 20δ/ piece molybdenum slab. In order to roll suitable cold rolled molybdenum plate, hot rolling adopts two schemes, namely primary reversing rolling and secondary reversing rolling. The thickness of the rolled molybdenum plate is between 2.9 ~ 3.1mm, and the surface quality of the hot rolled plate is good.

Cold rolling of wide-width molybdenum plate is carried out on a 550mm cold rolling machine with a width of 400 ~ 510mm, and on a 1200mm four-high reversible cold rolling machine with a width of 700 ~ 800mm.
Due to the large size of molybdenum slab and to ensure the corresponding size of finished product, reversing rolling must be adopted in cold rolling. According to previous experience, molybdenum plate in cold rolling reversing rolling prone to head peeling, delamination and other processing defects, in order to ensure the smooth cold rolling process of wide-width molybdenum plate, we should reduce or overcome the phenomena of head peeling, delamination and so on. Therefore, a small scale process test was first arranged, and the small scale test was carried out on a 550mm four-high reversible cold mill. Through the cold rolling test of various deformation modes and different processing rates, we found that the surface quality of molybdenum plate rolled by only part of the process system is good and there is no obvious defect form, while the edge of molybdenum plate rolled by most process system has split edge or peeling and delamination.