Using thermally insulated polymer film for mold temperature control to improve surface quality of microcellular injection molded parts

International Communications in Heat and Mass Transfer

Volumn 35, Issue 8, 2008, Pages 991-994

  Chen, Hui Li ^a   Chien, Rean Der ^b,c   Chen, Shia Chung ^c  

^a FAR EAST UNIVERSITY   (Taiwan)

^b NANYA INSTITUTE OF TECHNOLOGY   (Taiwan)

^c CHUNG YUAN CHRISTIAN UNIVERSITY   (Taiwan)

Author keywords

Flow marks; In mold decoration; Microcellular; Surface quality; Variable mold temperature

Indexed keywords

FILM THICKNESS; HEAT TRANSFER; INTERFACES (MATERIALS); MICROCELLULAR RADIO SYSTEMS; MOLDING; MOLDS; POLYETHYLENE TEREPHTHALATES; POLYMER FILMS; POLYMERS; QUALITY CONTROL; SEMICONDUCTING FILMS; SURFACE PROPERTIES; SURFACE ROUGHNESS; TEMPERATURE CONTROL;

FLOW MARKS; IN-MOLD DECORATIONS; INJECTION MOLDED PART; MICROCELLULAR; MICROCELLULAR INJECTION MOLDING; MOLD TEMPERATURES; VARIABLE MOLD TEMPERATURE; VISUAL INSPECTION;

INJECTION MOLDING;

EID: 56349123680     PISSN: 07351933     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.icheatmasstransfer.2008.04.017     Document Type: Article

References (16)

1. J.E. Martini, F.A. Waldman, N.P. Suh, The production and analysis of microcellular thermoplastic foam, SPE ANTEC Technical Papers, vol. 28, 1982, pp. 674-676.
2. F.A. Waldman, The Processing of Microcellular Foam, S.M. Thesis, Department of Mechanical Engineering, Massachusetts Institute of Technology: Cambridge, MA, 1982.
3. D.F. Baldwin, N.P. Suh,M. Shimbo, Gas dissolution and crystallization in microcellular thermoplastic polyesters, ASME Cell Polymer, vol. 38, 1992, pp. 109-128.
4. C.B. Park, N.P. Suh, Rapid heating for microcellular nucleation in a polymer melt, SPE ANTEC Technology Papers, vol. 39, 1993, pp. 1513-1518.
5. D.F. Baldwin, C.B. Park, N.P. Suh, An extrusion system for the processing of microcellular polymer sheets: Shaping and cell growth control, Polym. Eng. Sci. 36 (1996) 1425-1435.
6. M. Shimbo, K. Nishida, T. Heraku, K. Iijima, T. Sekino, T. Terayama, Foams 1999, First International Conference on Thermoplastic Foam, Parsippany, New Jersey, 1999, p. 132.
7. M. Shimbo, H. Kawashima, S. Yoshitani, Foams 2000, SecondInternational Conference on Thermoplastic Foam, Parsippany, New Jersey, 2000, p. 162.
8. K. Jacobsen, D. Pierick, Block copolymer micelles for nucleation of microcellular thermoplastic foams, SPE ANTEC Tech. Papers, vol 58, 2000, pp. 1929-1933.
9. J. Xu, D. Pierick, Microcellular foam processing in reciprocating-screw injection molding machines, Trexel technical papers, Trexel Inc, 2001, pp. 152-156.
10. K.T. Okamoto, Microcellular Processing, Hanser Gardner Publications, Inc, Cincinnati, OH, 2003.
11. C.T. Yang, K.L. Lee, S.T. Lee, Dimensional stability of LDPE foams: modeling and experiments, J. Cell. Plastics 38 (2002) 113-128.
12. J.D. Yoon, S.K. Hong, J.H. Kim, S.W. Cha, A mold surface treatment for improving surface finish of injection molded microcellular parts, Cell. Polym. 23 (2004) 39-47.
13. S.W. Cha, J.D. Yoon, The relationship of mold temperatures and swirl marks on the surface of microcellular plastics, Polym.-Plast. Technol. Eng. 44 (2005) 795-803.
14. W. Michaeli, A. Cramer, Increasing the feasible bonding strength in micro assembly injection molding using surface modifications, SPE ANTEC Technology Papers, vol 64, 2006, pp. 1290-1294.
15. D.H. Kim, M.H. Kang, Y.H. Chun, Development of a notebook PC housing by using MMSH (Momentary Mold Surface Heating) progress, SPE ANTEC Technology Papers, vol 59, 2001, pp. 3353-3356.
16. http://www.akchem.com/emt/EG00511.html.