Clogging of venting slots in injection molds is a common maintenance problem related to the degradation of the resin and the accumulation of corrosive residues on cavity walls. In this work, the effect of laser-induced periodic surface structures on the self-cleaning properties of venting slots was investigated. The degradation of PET over different surfaces was characterized using a specifically design experimental setup. The results indicate that the use of regular nano-structures aligned along the flow direction minimizes the deposition of gaseous residues on the venting slots.

Effect of laser-induced periodic surface structures on the self-cleaning properties of venting in injection molding

Sorgato M.
;
Zanini F.;Masato D.;Lucchetta G.
2019

Abstract

Clogging of venting slots in injection molds is a common maintenance problem related to the degradation of the resin and the accumulation of corrosive residues on cavity walls. In this work, the effect of laser-induced periodic surface structures on the self-cleaning properties of venting slots was investigated. The degradation of PET over different surfaces was characterized using a specifically design experimental setup. The results indicate that the use of regular nano-structures aligned along the flow direction minimizes the deposition of gaseous residues on the venting slots.
Annual Technical Conference - ANTEC, Conference Proceedings
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11577/3328329
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