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Published byEmery Lloyd Modified over 9 years ago
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Lost Wax Casting
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Select type of wax
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Mrs. Pearson will cut your wax to width
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Size the inside of your ring
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Tools for shaping your ring
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Using the Jewelry Saw
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Filing the Wax
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Heating tools for wax
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Weigh your wax model. Wax cannot exceed 1.5 grams.
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Multiply your wax weight by Ten. REMEMBER WEIGHT!!!
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Cut sprue, ¼ of an inch long, weigh with wax ring
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Sprue up
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½ inch from top of wax model to top of flask
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Measure Flask of Water
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Water should be ¼ inch from top
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Pour the water into the rubber bowl
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Add powder until you have an island
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Have fun mixing
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Add powder until you have a pancake batter consistency
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Vibrate bubbles out
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Slowly pour the investment in; avoid pouring directly on top of the ring
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Fill to the top
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Vibrate your flask
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Let it dry, mark your initials, period, and the weight you need in metal.
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Leftover Investment O Let the leftover investment dry in the bowl O Do Not pour investment down sink O After the investment is dry, put in garbage
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Overnight burnout
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Reheat to 900 degrees F to cast
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Wind the centrifuge 3 turns
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Put metal into crucible
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Put flux on metal and start heating
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Get your hot flask from kiln and set into the cradle
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Heat metal until liquid
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Get it hot
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Let it spin
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Check for a full sprue
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When not red quench in water
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Pull metal from flask
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Find the sand blaster
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Don’t forget to turn on the air
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Spray it off with sand
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It should now be clean
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Cut sprue off with the Jewelry saw
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File and Sand
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Buff your piece
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Your piece should almost be finished
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Make last minute fixes and turn it in!! Yeah, you have just completed your 1 st cast!!!!!!!!!!!!!!
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