Ultrasonic measurement of residual wall thickness during gas assisted injection moulding.
dc.contributor.author | Mulvaney-Johnson, Leigh | * |
dc.contributor.author | Brown, Elaine C. | * |
dc.contributor.author | Coates, Philip D. | * |
dc.date.accessioned | 2009-07-27T13:59:16Z | |
dc.date.available | 2009-07-27T13:59:16Z | |
dc.date.issued | 2007 | |
dc.identifier.citation | Brown, E.C., Mulvaney-Johnson, E.C. and Coates, P.D. (2007). Ultrasonic measurement of residual wall thickness during gas assisted injection moulding. Polymer Engineering and Science. Vol. 47, No. 11, pp. 1730-1739. | en |
dc.identifier.uri | http://hdl.handle.net/10454/3138 | |
dc.description | No | en |
dc.description.abstract | Ultrasonic technology provides a powerful and noninvasive method of in-process measurement during injection molding and extrusion. Changes in the velocity, attenuation and reflection coefficients of high frequency sound waves can be related to the state and conditions of the materials through which they propagate. The velocity of an ultrasonic wave changes with density and elastic moduli; this allows information on solidification and material properties to be collected during the molding cycle. The time of flight of the wave is a function of velocity and path length. This paper shows that it can be correlated with the residual wall thickness of polymer in the mold during gas assisted injection molding. | en |
dc.language.iso | en | en |
dc.relation.isreferencedby | http://www3.interscience.wiley.com/cgi-bin/fulltext/116325093/PDFSTART | en |
dc.subject | Olefin polymer | en |
dc.subject | Experimental study | en |
dc.subject | Non destructive method | en |
dc.subject | Temperature effect | en |
dc.subject | Thickness measurement | en |
dc.subject | Ultrasonic method | en |
dc.subject | Wall thickness | en |
dc.subject | Property processing relationship | en |
dc.subject | High density ethylene polymer | en |
dc.subject | Gas injection | en |
dc.subject | Injection molding | en |
dc.title | Ultrasonic measurement of residual wall thickness during gas assisted injection moulding. | en |
dc.status.refereed | Yes | en |
dc.type | Article | en |
dc.type.version | published version paper | en |