Due to the special nature of nickel-based superalloy and aspects, to be made into a cast, then it is recommended that the use of vacuum casting technology, to ensure you can get the best quality castings. Specific mode of operation is as follows, are interested can look at.

First, to be ready to cast nickel-base superalloy required wax wax shell, then went into the material will create a vacuum melted away; and then the molten liquid in the vacuum casting, molding and cooling can be obtained after the desired workpiece. To fully grasp this one technology, we must first understand what is vacuum casting?
The so-called vacuum casting, in fact, the air is discharged into the environment to be poured into the liquefied-type shell, so to be avoided due to the pressure of the atmosphere so that the pressure casting process produces bubbles, which affect the quality of the casting. Typically vacuum casting can be divided three ways, namely, vacuum casting, vacuum low pressure casting and vacuum pressure casting, different quality requirements for different castings, so take the process is different.