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Foundry Products --> Melt
Shop Equipment --> Reduced Pressure Tester Foundry
Products:
Reduced Pressure
Tester
Overview
 Whenever
degassing is a requirement of the melting process,
it is desirable to verify the effectiveness of the
degassing process. Palmer supplies a simple, easy to
use partial pressure test unit for this
verification.
To use, the operator
warms a sample cup, dips the cup into the furnace
for a metal sample, quickly places the sample into
the vacuum chamber, and starts the vacuum pump.
The aluminum
solidifies under a vacuum causing any entrained
hydrogen gas bubbles to expand greatly. Once solid
and cooled, the sample is cut in half and compared
to the chart below for gas level analysis.
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