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Monitoring of injection moulding of thermoplastics : adopting pressure transducers to estimate the solidification history and the shrinkage of moulded parts
Speranza, Vito (Avtor), Vietri, Umberto (Avtor), Pantani, Roberto (Avtor)

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Izvleček
In this work, a series of injection moulding tests were conducted using a general purpose PolyStyrene, PS, and changing the holding pressure,injection temperature and cavity dimensions. The pressures at the interface with the mould at several positions along the flow-path weremeasured by means of pressure-temperature transducers. The samples were measured after moulding to determine dimensional accuracy,which was taken to be the target quality parameter. The pressure profiles obtained were then analysed using a recently developed procedurethat is able to estimate the local solidification history from pressure measurements. The local average solidification pressure, namely theaverage along the thickness direction of the pressures at which each layer solidifies, could thus be estimated. This parameter is known tocorrelate well with shrinkage and thus a master-curve can be created that can be adopted to monitor the quality of the moulded part on line.

Jezik:Angleški jezik
Ključne besede:injection moulding, quality control, shrinkage
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2013
Št. strani:str. 677-682, SI 137
Številčenje:Vol. 59, no. 11
UDK:621.767:678.7
ISSN pri članku:0039-2480
DOI:10.5545/sv-jme.2013.1000 Povezava se odpre v novem oknu
COBISS.SI-ID:13220379 Povezava se odpre v novem oknu
Število ogledov:691
Število prenosov:148
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
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Gradivo je del revije

Naslov:Strojniški vestnik
Skrajšan naslov:Stroj. vestn.
Založnik:Zveza strojnih inženirjev in tehnikov Slovenije [et al.], = Association of Mechanical Engineers and Technicians of Slovenia [et al.]
ISSN:0039-2480
COBISS.SI-ID:762116 Povezava se odpre v novem oknu

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:predelava polimerov, brizganje, kontrola kakovosti, krčenje, strjevanje, povprečni tlak strjevanja, tlak v gnezdu, čas strjevanja

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