In order to improve the quality of molybdenum sheets, the key lies in the rolling process of molybdenum plates. As for the selection and rolling process of hot rolled molybdenum plate and cold rolled molybdenum plate, we constantly improve the quality of hot rolled molybdenum plate and cold rolled molybdenum plate, and provide customers with high purity and high performance molybdenum plates.

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

       Because the size of the cold rolled product molybdenum plate is 0.4 ~ 0.5 x 700~800 x 2000 ~ 3000mm, it is necessary to increase the size of the hot rolled slab. It is more suitable to choose the molybdenum slab with a single weight of 20 Delta / block by test and calculation.In order to roll out the suitable cold rolled molybdenum plate, two schemes are used for hot rolling, which are one commutation rolling and two reversing rolling respectively. The thickness of the rolled molybdenum plate is between 2.9 and 3.1mm, and the surface quality of the hot rolled plate is good.

      The wide width molybdenum plate cold rolling width of 400 ~ 510mm is carried out on a cold rolling mill with a width of 550mm, while the molybdenum plate with a width of 700 to 800mm is carried out on the 1200mm four roll reversible cold rolling mill.

     Because of the large size of molybdenum slab and ensuring the corresponding finished product size, reversing rolling must be adopted in cold rolling. According to the previous experience, it is very easy for molybdenum plate to appear in the cold rolling and reversing rolling. The defects of head lifting and delamination are very easy to appear. In order to ensure the smooth process of cold rolling of the wide Mo plate, it should be reduced or overcome as much as possible. The phenomenon of layer and so on. Therefore, small technological tests were first arranged, and small tests were carried out on the 550mm four roll reversing cold rolling mill. Through the cold rolling tests of various deformation modes and different processing rates, it is found that the surface quality of the molybdenum plate rolled by a part of the process system is better, and there is no obvious defect form.

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