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Name of product
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Grain refiner
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Brand
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Desofin
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Form of product
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50g/capsule, can be put into the copper melt together with the sealing aluminum capsule packing while being used.
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Consumption
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150 grams capsule for each 1metric ton of melted brass or melted alloy
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Alloy requirements
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◆Suitable for all copper alloy, including pure copper (99.85%) , Work best on brass alloy.
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◆Can be used to lower the casting temperatures and increase the castability and fluidity of the aluminum bronze, red brass and tin bronze.
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◆Also proper for aluminum high pressure casting, parts will come out bright and shiny
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◆Can be used on the dross which is being removed from the melt to get the trapped metal to flow back to the pool of liquid metal
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◆Also good for nickel, silver and gold to clean and grain refine.
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Method of use
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◆Products shall be free of any moisture.
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◆Any adjustments to the aluminum or zinc content of the melt should be made prior to adding Desofin.
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◆The surface of the melt should be reasonably free of slag.
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◆Desofin should be added to the melt by immersing the capsules at least 100 cm. below the liquid metal surface using a bell shaped plunger and the furnace should be in low tap.
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◆Stir the melt uniformly after putting Desofin into it.
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Expected benefits
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◆Improved Fluidity of the metal to be cast.
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◆Lower the casting Temperatures are possible depending on the size of the part to be cast and the type of mold to be used. Generally between 940 and 980 degrees C for beryllium copper molds.
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◆Lower temperatures are possible if the iron steel molds are used.
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◆Cracking Tendencies of the parts to be cast are greatly reduced and most often, cracks are eliminated.
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◆The occurrence of the sinks is greatly reduced.
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◆Lead is more uniformly distributed in the fine grain structure.
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Potential savings
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◆Savings over the cost of purchasing fine grained ingot.
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◆Reduction of casting scrap.
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◆Reduction in finishing and rework costs.
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◆Energy savings resulting from lower casting temperatures.
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◆It is not necessary to refine foundry scrap, i.e. gates, risers and turnings already grain refined.
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