Processing Technology and Progress of Wide and Thick Pure Molybdenum Plate

Release time:

2024-02-27

As an insoluble heavy metal material, molybdenum is widely used in aerospace, medical equipment, vacuum coating and other industries because of its high melting point, high density, high elastic modulus, small linear expansion coefficient, high temperature strength, excellent electrical and thermal conductivity and good acid and alkali resistance. As the main material of the heat shield, the wide-format pure molybdenum plate can reduce the willow welding point, improve the productivity and material utilization rate, reduce the cost of energy, and further increase the market share. Therefore, it is very important to study the preparation technology of high quality wide pure molybdenum plate.

my country's insoluble metal plate rolling technology started in the 1960 s. With the promulgation of the "Twelfth Five-Year Development Plan for the New Material Industry" of the Ministry of Industry and Information Technology and market demand, many domestic non-ferrous metal preparation and processing companies have focused on higher added value. In the development and production of wide-width pure molybdenum plates, through technology accumulation and scientific research and public relations, large-scale tungsten-molybdenum rolling mills with independent intellectual property rights have been designed and manufactured.

In the rolling process of pure molybdenum plate, the different rolling speed means the different deformation rate, the deformation resistance increases with the increase of the deformation rate, there is a critical deformation rate, the deformation resistance increases with the increase of the deformation rate below the critical deformation rate, and the deformation resistance decreases with the increase of the deformation rate above the critical deformation rate. In order to improve the rolling productivity of pure molybdenum plate and ensure the required final rolling temperature, high-speed rolling is generally adopted, and the rolling speed should be controlled at 50-55 m/min.

The practical use of pure molybdenum plate is extensive

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