Vacuum Casting (Negative Pressure Sealed Casting, Reduced Pressure Casting or V Process Casting) uses dry sand and negative pressure to form the casting molds. Vacuum negative pressure casting is one type of dry sand casting and requires the use of air extraction equipment to extract the air inside the casting mold, and then use the pressure difference between the inside and outside of the mold to cover the heated plastic film on the patterns and the templates. The casting mold will become strong enough to withstand the molten metal during casting. After obtaining the vacuum casting mold, fill the sand box with dry sand without binder, and then seal the top surface of the sand mold with the plastic film, followed by vacuum to make the sand firm and tight. After that, remove the mold, put the sand cores, close the mold to make everthing ready for pouring. Finally, the casting is obtained after the molten metal is cooled and solidified.
11 products found
Railroad freight car draft gear housing with custom services. Press testing is available.
Grey and ductile cast iron vacuum castings with custom services and CNC machining services.
China OEM custom draft gear housing for railroad freight car by vacuum casting with CNC machining services, surface treatment
OEM custom carbon steel casting products by vacuum (v process) process with CNC machining and surface treatment services.
Steel Vacuum Casting Company from China with OEM Custom and CNC Machining Services.
OEM custom bronze and copper-based alloy vacuum casting products with CNC machining and surface treatment services.
Cast Alloy Steel Draft Gear Housing produced by vacuum casting in China steel foundry.
Vacuum casting steel draft gear housing for freight cars with CNC machining and custom tairlor-made services.
Cast alloy steel V process castings mean the casting parts produced by vacuum casting process with materials of alloy steel
Vacuum casting (V Process Casting) allows large-scale casting available with thick-walled
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