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Wax Assembly

Specially formulated wax is injected into the custom tool and die to produce the pattern for the component. One pattern, which is the exact replica of the component desired, must be produced for each finished component that needed to be cast. The pattern has allowances to compensate for volumetric shrinkage during the process and includes one or more gates to guide molten metal into the part during the solidification process.

Signicast's patented wax injection system was developed in-house for automatically distributing semi-solid wax to the injection presses. The system is extremely unique to the industry for the fact that it has the ability to control the wax temperature within +/- 1 degree Fahrenheit. Injecting wax as a semi-solid allows for less shrinkage through the solidification process so the patterns possess better dimensional stability and resist flash and cavitation (sink) when cooling.

". . . Injecting wax as a semi-solid allows for less shrinkage through the solidifiction process so the patterns possess better dimensional stability and resist flash and cavitation (sink) when cooling . . ."

Once the wax patterns have been produced, they are assembled onto a wax sprue to form a mold or “tree”. The number of patterns assembled per mold varies, dependent upon the size, weight, and configuration of a given component.