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.File in questo prodotto:
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