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Weight limit on metal plaster ring12/24/2023 ![]() Porosity in castings is tiny holes or pitting on the metal. The technical name for this process is:Ĭontrolling the solidification of the metal in the flask will help eliminate many of the problems of one of the most dreaded word in casting, “porosity”, also known as metal shrinkage. Sprues are used in these four (4) basic functions:Īllows an entrance for the metal to be introduced into the cavityĪllows for the proper solidification of the metalįunction No.4 is of extreme importance. ![]() What are sprues? Sprues are extruded wax wires of different sizes usually round. This is a very important point whether you are casting one piece or hundreds of pieces. This will afford you less time in finishing the casting. The reason is that the more the wax is finished the better and cleaner the casting will be. The wax model should be finished as though it were the actual piece of jewelry. Purchase a wax pattern from your jewelry supply store where casting equipment and supplies are sold. The mold making process is thoroughly and completely explained in its own section of this book. This method is used for the infinite reproduction of castings. Make a rubber mold from a metal model and inject the mold with wax. Wax patterns are obtained in three different ways.ĭesign and model the wax pattern to the satisfaction of the caster and/or artisan. In lost wax casting, the very first thing you must have is a wax pattern. Process control ensures the caster of known results consistently where as no control has no assurance of consistent results. The caster or artisan either has control of the process or the process I feel certain that if you read this manual and understand the concept, you will realize that you, too, can perform all that is written here with confidence.įirst and foremost, I want to impress upon you, the reader, whether you intend to do this for a hobby or as a profession, these very important two words. Lost wax casting has come a long way since those times but we must not forget the fact that these early artisans mastered their art to such an extent that much of their work is viewed today as extraordinary. Castings have been found dating back to early century Europe, the Shang Dynasty in China and in the ruins of the Aztecs and Mayans in Mexico. Lost wax casting is by no means considered a new form of art. This prevented, in some obscure way, creating competitors. ![]() The non family member shop employee was relegated to only certain parts of the process but never given the entire method and/or process from start to finish. In the jewelry industry as well as other works of artistry the process or secrets were passed on to only family members. This original manuscript was first written in Spanish under the name, Secretos, which of course translated means, secrets. It is the Authors intention to impart the necessary information and process that is vital in being successful in this endeavor. Welcome to the world of lost wax casting.
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