Processing Machinery
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Corrosion of ETFE screw and barrel
Problembeschreibung
Corrosion appears on screws processing ETFE
Ursachenanalyse
Corrosion of metal by HF from slight decomposition of ETFE
Lösung
Use fluorine corrosion resistant alloys (Hastelloy, Monel); chrome plate or special coating on screw surface
Wichtigste Erkenntnis
ETFE processing has extremely high fluorine resistance requirements for equipment materials
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