Skip to main content
SpringerLink
Log in

Cross-section design of multi-lumen extrusion dies: study on the effects of die swell and gas flow rate of the lumen

  • Technical Paper
  • Published:
Microsystem Technologies Aims and scope Submit manuscript

Abstract

In the paper, the effects of die swell and gas flow rate of polymer multi-lumen micro tubes on the design of the cross-section of the multi-lumen die are investigated mainly. On the one hand, the effects of die swell on the design of the cross-section of the extrusion die are studied on the basis of the function of die swell, extrusion velocity and length–diameter ratio of the die. After analysis, it is found that the die swell phenomenon is obvious especially when the micro tube is extruded with larger wall thickness at a higher extrusion velocity, which may lead to the deformation of the extruded tube. For extrusion of micro tubes with a well-defined shape, there is a need to optimize the geometries of the die accordingly to compensate this deformation. According to the analysis, a double-lumen and a five-lumen micro extrusion die are designed and manufactured separately. On the other hand, the extrusion experiments on the effects of gas flow rate of polymer multi-lumen micro tubes on the design of the cross-section of the multi-lumen die are conducted using the extrusion dies. Considering the effects of die swell and the gas flow rate of extrusion processes on the tubes, it is found that a well-defined multi-lumen micro tube can only be successfully fabricated by combining all the three factors including the effect of die swell, gas flow rate and optimization of the cross-section of the extrusion die.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16
Fig. 17
Fig. 18
Fig. 19
Fig. 20

Similar content being viewed by others

References

  • Chen CS, Chen SC, Liaw WL (2008) Rheological behavior of POM polymer melt flowing through micro-channels. Eur Polym J 44(6):1891–1898

    Article  Google Scholar 

  • Debbaut B, Marchal T (2013) Numerical simulation of extrusion process and die design for industrial profile, using multimode pom–pom model. Plast Rubber Compos 37(2–4):142–150

    Google Scholar 

  • Gu DZ (1988) Polymer fluid dynamics. Sichuan Education Press, China

    Google Scholar 

  • Hogan TA, Walia P, Dems BC (2009) Investigation of the relationships between die build up and die swell. Polym Eng Sci 49(2):333–343

    Article  Google Scholar 

  • Kalyon D, Tan V, Kamal MR (1980) The dynamics of parison development in blow molding. Polym Eng Sci 20(12):773–777

    Article  Google Scholar 

  • Liang J (1995) Research on extrusion swell behaviour of blastomers through short dies. China Elastom 5(4):43–45

    Google Scholar 

  • Liu F (2003) The die design for extrusion processing. Die Mould Technol 3:32–33

    Google Scholar 

  • Niranchana R (2005) Validation of a program that simulates flow in an extrusion die. M. Eng thesis. University of Massachusetts Lowell, USA

  • Pauli L, Behr M, Elgeti S (2013) Towards shape optimization of profile extrusion dies with respect to homogeneous die swell. J Nonnewton Fluid Mech 200(20):79–87

    Article  Google Scholar 

  • Rean DC, Wen RJ, Shia CC (2005) Study on rheological behavior of polymer melt flowing through micro-channels considering the wall-slip effect. J Micromech Microeng 15:1389–1396

    Article  Google Scholar 

  • Sheptak N, Beyer CE (1965) Know your parison. SPE J 21:190–196

    Google Scholar 

  • Sombatsompop N, Intawong NT (2005) A comparative study on extrudate swell ratio of polystyrene in a capillary rheometer and a single screw extruder. Polym Test 24(8):948–952

    Article  Google Scholar 

  • Tang ZY (1991) Application of rheology in engineering design of plastics die and mold. National Defense Industry Press, China

    Google Scholar 

  • Tang ZY (2000) Optimization design of plastics extrusion and injection mold. China Machine Press, China

    Google Scholar 

  • Tian H, Zhao D, Wang M, Jin G, Jin Y (2015) Study on extrudate swell of polypropylene in double-lumen micro profile extrusion. J Mater Process Technol 225:357–368

    Article  Google Scholar 

  • Wu DM, Liu Y, Guo YC (2006) The application prospects of precision medical plastic catheter. Plast Manuf 6:38–44

    Google Scholar 

  • Xiao JH, Liu HS, Xing YH (2009) Slip length of gas-assisted extrusion die influence on die swell ratio. Plastics 38(1):115–117

    Google Scholar 

  • Xu PX (2003) Polymer rheology and its application. Chemical Industry Press, China

    Google Scholar 

  • Xu B, Wang MJ, Yu TM, Zhao DY (2009) A study of novel viscous dissipation measurement for polymer melts in microchannels. J Mech Eng Sci 224(C9):2027–2039

    Google Scholar 

  • Yang AC (1999) Extrusion die technology for plastic profile. Machinery Industry Press, China

    Google Scholar 

  • Yin CF (2007) Control of the ellipticity and the outer wall thickness of the high pressure pipe. Pet Chem Constr 29(4):63–64

    Google Scholar 

  • Zhao LZ (2005) Theoretical analysis on polymer melt extrusion swell at conical die with different entrance angles. China Plast Ind 33(1):116–118

    Google Scholar 

  • Zhao DY, Wang MJ, Li K, Song MC, Jin YF (2010) Flow uniformity of polymer micro extrusion processing. Polym Mater Sci Eng 26(7):159–162

    Google Scholar 

  • Zou WD (2006) Study on extrusion processing of profile pipe with small cross-section. M. Eng thesis. Beijing University of Chemical Technology, China

Download references

Acknowledgements

This paper was supported by the Provincial Natural Science Foundation of Anhui Universities (Grant No. KJ2015A225), the Science Research Funds of Chaohu College (Grant No. XLY-201420), and the PhD Science Research Funds of Chaohu College (Grant No. KYQD-201404).

Author information

Authors and Affiliations

  1. School of Mechanical Engineering, Chaohu College, Hefei, 238000, People’s Republic of China

    Guobao Jin, Guanghui Dai & Qingqing Zhang

  2. Mechanical and Aerospace Engineering Department, University of Florida, Gainesville, 32611, USA

    Yifei Jin

  3. School of Mechanical Engineering, Dalian University of Technology, Dalian, 116024, People’s Republic of China

    Danyang Zhao

Authors
  1. Guobao Jin
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Yifei Jin
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Danyang Zhao
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Guanghui Dai
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Qingqing Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Guobao Jin.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Jin, G., Jin, Y., Zhao, D. et al. Cross-section design of multi-lumen extrusion dies: study on the effects of die swell and gas flow rate of the lumen. Microsyst Technol 23, 5093–5104 (2017). https://doi.org/10.1007/s00542-017-3489-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00542-017-3489-3

Search

Navigation