A numerical solution is presented for isothermal Newtonian wire coating under vacuum or with an externally applied pressure. Differential equations for the melt cone shape are derived from a force balance on the melt cone. Die design curves are then constructed from the solutions to these equations. These curves are helpful in predicting wire coating operating conditions.

1.
Griff, A. L., 1968, Plastics Extrusion Technology, Reinhold, New York, pp. 198–201.
2.
Wyeth
,
N. C.
,
1965
,
SPE Tech. Pap.
,
11
, pp.
1
2
.
3.
Mitsoulis
,
E.
,
1986
, “
Fluid Flow and Heat Transfer in Wire Coating: A Review
,”
Adv. Polym. Technol.
,
6
, pp.
467
487
.
4.
Hallam, C. A., and Reynolds, E. W., 1951, U.S. Patent 2,550,555.
5.
Kanotz, W. M., Lockhart, W. R., Pipe, G. F., Vesperman, W. C., and Wilson, M., 1980, U.S. Patent 5,151,147.
6.
Holt, A., and Krutzler, J., 1985, U.S. Patent 4,505,222.
7.
Feil, J. N., and Hrivnak, J. E., 1986, U.S. Patent 4,588,546.
8.
Starnes, R. E., 1990, U.S. Patent 4,940,504.
9.
Foster, W. W., Boatwright, G. L., and Lewis, T. L., 1992, U.S. Patent 5,151,147.
10.
Milliman, J. A., and Thuot, G. G., 1997, U.S. Patent 5,665,161.
11.
Buckmaster, M. D., Henry, D. L., and Randa, S. K., 1997, U.S. Patent 5,688,457.
12.
Slattery
,
J. C.
,
Giacomin
,
A. J.
, and
Ding
,
F.
,
1999
, “
Wire Coating by Drawdown of an Extruded Melt
,”
Int. Polym. Process.
,
14
, pp.
152
158
.
13.
Caswell
,
B.
, and
Tanner
,
R. I.
,
1978
, “
Wirecoating Die Design Using Finite Element Methods
,”
Polym. Eng. Sci.
,
18
, pp.
416
421
.
14.
Kuyl, P. B., 1996, “Coating Flow Simulation of 24 AWG Wire with FEP Fluoropolymer,” 45th International Wire and Cable Symposium Proceedings, pp. 736–742.
15.
Kuyl, P. B., 1997, “Non-isothermal Viscoelastic Flow Simulation of High Speed Wire Coating Process,” Proceedings, ANTEC ’97, pp. 298–302.
16.
Pearson
,
J. R. A.
, and
Petrie
,
C. J. S.
,
1970
, “
A Fluid-Mechanical Analysis of the Film-Blowing Process
,”
Plast. Polym.
,
38
, pp.
85
94
.
17.
Middleman, S., 1977, Fundamentals of Polymer Processing, McGraw-Hill, New York, pp. 249–259.
18.
Osswald, T. A., and Menges, G., 1996, Materials Science of Polymers for Engineers, Hanser, New York, pp. 177–184.
You do not currently have access to this content.