Material Drying
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Mismatch of testing methods and standards leads to wrong quality judgment
Problembeschreibung
Mismatch of testing methods and standards leads to wrong quality judgment
Ursachenanalyse
Testing conditions do not consider the moisture absorption state of cellulose acetate butyrate
Impact test conducted in dry state, results low
Dimensional inspection not performed after conditioning
Visual inspection standards unclear
Mechanical property test conditions do not match the use environment
Lösung
Products need conditioning to equilibrium moisture content before testing
Impact test conducted in wet state (moisture 1.5-2.5%)
Dimensional inspection performed after conditioning
Establish clear appearance inspection standards
Test conditions match the use environment
Wichtigste Erkenntnis
Testing needs to be conducted under correct moisture content conditions
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