IMC's Processes Give You Options for Superior Promotional Products.Lost Wax Casting (Brass and Sterling Silver):Lost wax casting involves melting metal. Wax is injected under pressure into a mold. Next, the wax patterns are coated with a ceramic material. The ceramic is allowed to harden and then cured for 8 hours at 1400°F eliminating the wax pattern. Brass (sterling silver or karat gold), heated to a temperature of 2100°F, is cast into the cavity. After the metal solidifies, the ceramic material is removed, and the castings go through 8 finishing steps. Lost wax castings are known for their very high relief and exquisite detail. Die Striking (Brass and Nickel Silver):Die striking does not involve melting of metal. The metal is struck under high tonnage (up to 1100 tons) into a steel die bearing the desired image. The relief is lower than any of our casting methods, but the detail is more refined. Blank metal shapes of brass, nickel silver, or sterling silver are placed into the steel die. The metal is struck with annealing between steps. Any excess metal squeezed out of the die cavity is then trimmed away preparing the product for final finishing. Centrifugal Rubber Mold Casting:Centrifugal rubber molds Casting also involves pouring of molten metal. Fine unleaded pewter is poured into a spinning round mold. When the molten metal hits the center of the spinning mold, centrifugal force pushes the metal outward into the cavities of the mold. After a short spin cycle, the products are clipped from the sprue wheel and prepared for finishing. The process allows for deep relief and offers flexibility in shape. It is our shortest turn around time product. Finishes and Color Application:IMC is capable of applying a variety of standard and jewelery finishes. Brass and copper finishes, as well as gold, silver, and nickel plating can be applied over hand polished or machine finished products. Epoxy enameling can be done to match any PMS color. Awards:For the past several years, Indiana Metal Craft has won multiple Promotional Products Association Supplier Achievement Awards in both Casting and Die Striking Categories. Our award winning die cutters, model makers and graphics staff would love to assist you in creating your company award or memento. |