Investment Casting?see http://www.china-investmentcastings.com) is a process that has been around for more than 5000 years and when making more complex parts it can be particularly useful. Whether you are looking for the solution to the creation of solid or hollow parts Investment Castings is just what you need.

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The process always starts with the creation of the wax mould and that is made by injecting a high technology wax into an aluminium die.

Once the wax components have been removed from the die they can then be transferred onto a runner and then ?invested? or dipped into a water based binder.

Then the components receive a primary coat of fine silica sand and this is then used to give an overall smooth surface finish and to reproduce fine details. Then onto the drying process to that fixes everything in place and it can be moved to the next stage.

The now coated wax mould gets dipped in water based binder this time and is then coated in ceramic particles and then dried. Additional layers of water based binder may be added depending on what the required thickness is.

Once completely dry the mould can then be placed into a steam autoclave to melt out the wax, leaving only the ceramic shell.

The Ceramic Shell is then fired to approx 1000? that is designed to remove all the remaining moisture and also the wax and now the mould is now ready for the metal casting stage. This involves simply pouring molten metal into the cast and then once the cast has cooled the ceramic shell is broken to reveal just what you were looking for.