Pressure Vacuum Casting

Pressure Vacuum Casting

  • Production of nanostructured materials

    1. NanoScale Certification

    2. 2017/11/21
    3. 2020/11/21

    1. Certificate of Nanotechnology

    2. 2017/11/21
    3. 2020/11/21
Introduction Application Specification Advantage Of Using Nanotechnology Manual And Maintenance Safety And Package
Die casting is a process whereby the molten material is injected into a mold cavity under pressure. Unlike other casting techniques which mold is filled under the weight of molten metal, in this method, melt is forced into the mold cavity using pressure and maintained under pressure to solidify. Therefore this process can be used to cast high strength components. Die casting, with respect to the applied pressure, is divided into two groups, i.e. high-pressure and low-pressure casting. A water cooling system is usually used in this method to cool down the mold and accelerate the solidification process. One of the advantages of this method is production of ultra-thin, high-strength components, which their fabrication with other casting techniques is almost impossible. Ability of controlling cooling rate can change the final structure of component and consequently, mechanical properties. Typically, in this type of casting a flawless structure with high metallurgical and mechanical properties is achieved by applying a high pressure and high cooling rates.
Some applications of this device are as follows:
  • Production of nanostructured steels
  • Production of thin sections
  • Production of bulk metallic glasses
This device is able to provide a controlled atmosphere for melting and casting by employing the vacuum induction melting technology. The device maximum working temperature and the vacuum level in room temperature are 1700 °C and 5×10-4 mbar, respectively. The device is made up of two main chambers, i.e. a melting chamber (equipped with vacuum system) and casting chamber (equipped with vacuum and water cooling system). Details of technical specifications are presented in the following Table.
 
Pressure casting is one of the methods used to produce nanostructured steels and metallic glasses. Since the solidification rate can be controlled in this method, the production of materials with nano or amorphous structures is possible. 
  • After putting the specimen inside the crucible, place the crucible inside the melting chamber (in the middle of the coil) and then close the chamber according to the instructions.
  • Turn on the water cooling system.
  • It is recommended to clean inside the chamber using argon gas before using the vacuum system.
  • Turn on the vacuum pump (if necessary). To use the vacuum system, first turn on the rotary pump and then after reaching a proper vacuum level, start up the diffusion pump. 
  • Use the defined switches to run the furnace and adjust the desired temperature. 
  • The prepared melt is evacuated from the bottom of the crucible into a copper mold equipped with water cooling system, without breaking the vacuum (use of molds made up of other materials is also possible).
  • After finishing the casting process, turn off the vacuum and gas systems.
  • For more details on how to use the device, refer to the device catalog and user guide.
  • Install the electric panel in an environment free from dust, moisture and flammable gases.
  • Never use the strong solvents like thinner to clean the device.
  • Be careful when transporting this device because it is heavy.
  • During the device operation use the proper ventilation.
  • Never touch the device switches with wet hand.
  • Avoid keeping the flammable materials near the furnace. 
  • Avoid setting up the device in a place exposed to water and moisture.
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