Heat Deflection Temperature Tester For Testing Lab Description and Specifications for Lab Tenders
Heat Deflection Temperature Tester For Testing Lab Workshop.
Heat Deflection Temperature Tester -The Heat Deflection Temperature of plastic materials is the
temperature at which the material deflects by a specified amount under
the action of a specified stress. It is determined by supporting a
rectangular test specimen over two cylindrical edged blocks and pressing
it at the center of the supported span through a cylindrical edged
loading tip. The test specimen, along with the supports and the loading
frame, is kept in a high temperature bath whose temperature is slowly
raised. The temperature at which the test specimen deflects through a
predetermined distance is the heat deflection temperature of the
material under test
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