PROCESS FOR MANUFACTURING A SHELL MOLD
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United States of America Patent
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Oct 31, 2019
app pub date -
Jul 21, 2017
filing date -
Jul 22, 2016
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Abstract
The invention concerns a method of manufacturing a shell mould (1) with several layers (2, 3, 4, 5), including at least one contact layer (2), from a model (6) of wax or other similar material of a part to be manufactured, the method comprising a step of dipping the model (6) into a contact slip forming the contact layer (2) and comprising an inorganic or organic binder and a powder, wherein the powder is a mullite-zirconia composite.
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