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Rheological strategies for efficient...

Schmiederer, Dirk.

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Rheological strategies for efficient purging in injection molding.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Rheological strategies for efficient purging in injection molding./
作者:	Schmiederer, Dirk.
面頁冊數:	117 p.
附註:	Source: Masters Abstracts International, Volume: 42-05, page: 1870.
Contained By:	Masters Abstracts International42-05.
標題:	Plastics Technology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1419254

Rheological strategies for efficient purging in injection molding.
Schmiederer, Dirk.

Rheological strategies for efficient purging in injection molding. - 117 p.

Source: Masters Abstracts International, Volume: 42-05, page: 1870.

Thesis (M.S.Eng.)--University of Massachusetts Lowell, 2004.

Purging an injection molding machine is a vital procedure for every molder when switching from one resin formulation to another or when simply shutting down the machine. Complete removal of primary resin and hang-up of degraded material is necessary to achieve good production runs.Subjects--Topical Terms:

1023683
Plastics Technology.

Rheological strategies for efficient purging in injection molding.
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100 1 $a Schmiederer, Dirk. $3 1953189
245 1 0 $a Rheological strategies for efficient purging in injection molding.
300 $a 117 p.
500 $a Source: Masters Abstracts International, Volume: 42-05, page: 1870.
500 $a Supervisor: Nick R. Schott.
502 $a Thesis (M.S.Eng.)--University of Massachusetts Lowell, 2004.
520 $a Purging an injection molding machine is a vital procedure for every molder when switching from one resin formulation to another or when simply shutting down the machine. Complete removal of primary resin and hang-up of degraded material is necessary to achieve good production runs.
520 $a The purpose of this study was to examine the dependence of rheology of a commercial purging compound on parameter settings during plastication. The results have been used to research the purging efficiency when purging materials as polycarbonate and polyamide-6,6 which are immiscible with the base resin of the purging compound.
520 $a The results of the study showed that the purging efficiency depends on the flow induced morphology of the multi-phase systems in the nozzle and on the content of undissolved gas in each purge shot. The latter proved to be controllable by the parameter settings during shot build-up. Purging of the screw depends on the viscosity and melting point of the materials used as well as on the break-up of the solid bed in the screw flights.
520 $a Calculations of cost per purge showed that using a commercial purging compound with a rheologically based purging strategy can lead to the fastest switch-over and lowest purging cost.
590 $a School code: 0111.
650 4 $a Plastics Technology. $3 1023683
650 4 $a Engineering, Industrial. $3 626639
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690 $a 0546
710 2 0 $a University of Massachusetts Lowell. $3 1017839
773 0 $t Masters Abstracts International $g 42-05.
790 1 0 $a Schott, Nick R., $e advisor
790 $a 0111
791 $a M.S.Eng.
792 $a 2004
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