東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Design and validation of melt valves...

Gupta, Dheeraj M.

FindBook

Google Book

Amazon

博客來

Design and validation of melt valves in polymer processing, 2003--2004.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Design and validation of melt valves in polymer processing, 2003--2004./
作者:	Gupta, Dheeraj M.
面頁冊數:	139 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=1418806
ISBN:	0496235796

Design and validation of melt valves in polymer processing, 2003--2004.
Gupta, Dheeraj M.

Design and validation of melt valves in polymer processing, 2003--2004. - 139 p.

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

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

The new valve designs are proposed for precise control of the polymer melt during processing of critical components produced by hot runner injection molding and extrusion.

ISBN: 0496235796Subjects--Topical Terms:

1023683
Plastics Technology.

Design and validation of melt valves in polymer processing, 2003--2004.
LDR:02699nmm 2200325 4500 001 1845703
005 20051101072047.5
008 130614s2004 eng d
020 $a 0496235796
035 $a (UnM)AAI1418806
035 $a AAI1418806
040 $a UnM $c UnM
100 1 $a Gupta, Dheeraj M. $3 1933850
245 1 0 $a Design and validation of melt valves in polymer processing, 2003--2004.
300 $a 139 p.
500 $a Source: Masters Abstracts International, Volume: 42-05, page: 1870.
500 $a Supervisor: David O. Kazmer.
502 $a Thesis (M.S.)--University of Massachusetts Lowell, 2004.
520 $a The new valve designs are proposed for precise control of the polymer melt during processing of critical components produced by hot runner injection molding and extrusion.
520 $a The low force valve design works on the key principle of controlling melt flow by regulating the amount of pressure drop in the melt channel. The new design operates on the principle of balanced forces, which greatly reduces the actuation force required to regulate the juncture area, and consecutively controls the volumetric output with an ease of operation. The design has been validated by the series of experiments characterizing the performance of the valve to control the melt flow at a given pressure drop as a function of machine parameters and material properties.
520 $a The subsequently derived self-regulatory valve aims to apply melt flow control in polymer extrusion. There are two unique features of this valve; simplicity of design and self contained melt regulation. The valve design regulates flow instability inherent from the extruder, by compensating pressure surges by the movement of a pressurized valve pin and producing a constant output. Experimental validation results show the trade-off between melt pressure and flow regulation. Results also prove the relationship of control forces to obtain desired outputs as a function of melt pressure and temperature. The valve was also advantageously observed to compensate for changes to polymer melt viscosity with respect to the temperature and material type.
520 $a These valve designs achieve its distinctive applications in the field of polymer processing by contributing immensely towards greater reliability in the process, taking the manufacturing industry to the next level by implementing controllability of polymer flow.
590 $a School code: 0111.
650 4 $a Plastics Technology. $3 1023683
650 4 $a Engineering, Materials Science. $3 1017759
650 4 $a Chemistry, Polymer. $3 1018428
690 $a 0795
690 $a 0794
690 $a 0495
710 2 0 $a University of Massachusetts Lowell. $3 1017839
773 0 $t Masters Abstracts International $g 42-05.
790 1 0 $a Kazmer, David O., $e advisor
790 $a 0111
791 $a M.S.
792 $a 2004
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1418806