Vacuum melting furnace for preparing fusion casting type production of molybdenum from worn-out molybdenum

A vacuum smelting furnace and waste technology, which is applied in the field of vacuum smelting furnaces and vacuum smelting electric furnaces, can solve problems such as the inability to melt and cast molybdenum products, the inability to realize the recycling of waste molybdenum resources, and the inability to achieve waste molybdenum recycling, smelting and casting capabilities, etc.

Inactive Publication Date: 2007-12-26
JILIN XUFENG LASER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, none of the crucibles in the existing vacuum melting furnaces can achieve the recycling, smelting and casting capacity of waste molybdenum.
Therefore, the recycling of waste molybdenum resources cannot be realized
It is even more impossible to recycle waste molybdenum to form a cast molybdenum product industry

Method used

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  • Vacuum melting furnace for preparing fusion casting type production of molybdenum from worn-out molybdenum
  • Vacuum melting furnace for preparing fusion casting type production of molybdenum from worn-out molybdenum
  • Vacuum melting furnace for preparing fusion casting type production of molybdenum from worn-out molybdenum

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing and specific embodiment, the present invention will be further described:

[0014] As shown in Figure 1, 3 is a vacuum chamber, and a crucible 6 is arranged in the vacuum chamber. The bottom of the crucible is provided with a pouring mold device 7 . The pouring mold and the crucible are fixedly connected to a door car (not shown). Push it into the vacuum chamber during smelting, and pull out the vacuum chamber after the smelting is over and the cast molybdenum parts are cooled. A hollow non-consumable electrode 5 is arranged above the crucible, and the hollow non-consumable electrode 5 is fixedly connected to the hollow electrode rod 4 through a clamp. The hollow non-consumable electrode acts as the cathode during the smelting process. And the crucible 6 and the material in the crucible are used as anode during the melting process. The upper end of the hollow electrode rod is connected with the electrode rod transmissio...

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Abstract

This invention relates to a vacuum fusion furnace preparing castable Mo products with waste Mo including a vacuum chamber and a pot set in it, in which a cast model is under the pot, a cast hole with a group casting strob is set at the bottom of the graphite pot, the outside wall and bottom of the pot are wrapped by an insulated heat preservation conduction material layer, the outer of which is a water-cooling jacket with arc stabilizing coil in it, which can guarantee the heat balance necessary for smelting waste Mo and increases density of the products while eliminating nitrogen, hydrogen and oxygen and alloy impurities at low melting point compared with products produced by a powder metallurgical method.

Description

technical field [0001] The invention relates to a vacuum smelting electric furnace, in particular to a vacuum smelting furnace for producing cast molybdenum products from waste molybdenum. It can use waste molybdenum materials to produce cast molybdenum products. It belongs to the field of modern vacuum metallurgical equipment and also belongs to the technical field of regeneration and recycling of waste molybdenum resources. Background technique [0002] Metal molybdenum is a rare refractory precious metal, and it is one of the strategic materials of the world's industrial powers. Statistics from the International Molybdenum Association in 2002: China's waste molybdenum has reached 4,500 tons per year, so it is of great significance to pay attention to the regeneration of this resource. Due to the physical and chemical properties of metal molybdenum: high melting point, refractory, high temperature does not have oxidation resistance. Therefore, an economical and practica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B14/04F27B14/10C22B34/34
Inventor 王毓民
Owner JILIN XUFENG LASER TECH
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