samnang huot marco ferrettii - iccrom.org · 5 lost wax casting technique • preparing the wax...
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Metal casting workshopLost wax technique
Owner : Mr. Douch Sonn and his familyLocation : Prei Sorvillage, Sangkat Prei Sor, Khan DangKor, Southern part of Phnom penh
Samnang HuotMarco Ferrettii
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Lost wax casting technique• preparing the wax model (core material
can be seen as hollow cast)• applying fine-grain clay over the wax
surface• applying outer clay and attachment of the
crucible• firing, and • finishing the work
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Preparation of the wax model
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Applying fine-grain clay to the wax surface
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‐ Fine sand‐ Fine termite clay‐ Cow dung
After applying the clay
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Attaching the crucible to the mould with a mixture of clay and rice husk
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Firing the mould
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Samnang HuotMarco Ferrettii
Removing the mould from the kiln and turning it upside down
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Finishing the objects
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Wax model
direct
indirect
Lost-wax casting procedure
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Indirect technique
Original
Wax model
Cast
Coating the inside of the cast with a thin layer of wax
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The wax model is covered with a thin layer of fine-grain clay
Input runner for the moltenmetal. It is made of wax
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The layer of fine-grain clay is covered witha thick layer of coarse-grain clay
runners
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The mould and the crucible, filled withmetal, are joined and sealed withcoarse-grain clay
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More in detail:
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The mould-crucible system isfired. The wax is burnt and leavesa hollow space. The metal melts.
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Charging the kiln:
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Samnang HuotMarco Ferrettii
When the metal is molten the mould-crucible system isremoved from the kiln and capsized. The molten metal fillsthe hollow space.
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After opening the mould:
As cast object Removing the blurrs Soldering
Finishing
Samnang HuotMarco Ferrettii
Patinating
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