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If you are making a mold and need to use clay for an original model or creating mold walls, your best bet is to use non-sulfur based clay. There are several non-sulfur based clays to choose from.

The first step in metal casting involves making the mold. You can use sand or clay as casting grains. After the metal liquefies, pour it into the mold carefully. Metal hardens quickly.

There are six steps in this process - 1) Place a pattern in sand to create a mold 2) Incorporate the pattern and sand in a gating system 3) Remove the pattern 4) Fill the mold cavity with molten metal 5) Allow the metal to cool 6) Break away the sand mold and remove the casting.

Copper alloys are among the easiest metals to cast and bronze is included in this making it an extremely popular choice for both homemade casting and professional needs. Having been practiced for centuries bronze castings have frequently been used throughout history for sculpture making and furniture.

Molds for the casting process consist of two halves. Casting molds are usually formed from gray cast iron because it has about the best thermal fatigue resistance, but other materials include steel, bronze, and graphite. These metals are chosen because of their resistance to erosion and thermal fatigue.

Contact Information. To begin, include both the employer's and your contact information. Introduction. Find out to whom you're writing. Sell Yourself. The second paragraph should respond directly to the job description written by the hiring manager. Conclusion.