CRYSTAL GROWTH IN A RUNNING FILAMENT IN MELT SPINNING

Effect of Melt Spinning Variables on the Structural Changes of Recycled and Bottle Grade Filament Yarn PET

Magnetic Field Suppression of Melt Flow in Crystal Growth

A least-squares spectral finite element method was used to develop an accurate computer code for prediction of solidification from a melt under the influence of an externally applied magnetic field. The computational results indicate significantly different flow-field patterns and thermal fields in the melt and the accrued solid in the cases of full gravity, reduced gravity, and an applied unif...

Optimal Control of Melt Spinning Processes

An optimal control problem for a mathematical model of a melt spinning process is considered. Newtonian and non–Newtonian models are used to describe the rheology of the polymeric material, the fiber is made of. The extrusion velocity of the polymer at the spinneret as well as the velocity and temperature of the quench air serve as control variables. A constrained optimization problem is derive...

Template Single Crystal in First Cavity of Cavity Pull Melt Alloy in a Rod Crucible of a 502 Crystal Growth Apparatus Extract Cavity Pull Rod from Melt

4,239,583 A 12/1980 Hatch et al. 4,605,468 A 8/1986 Pastor 5,116,456 A 5/1992 Nestor 5,871,580 A 2/1999 Asahi et al. 6,153,007 A 11/2000 Nakata 6,660,082 132 * 12/2003 Weber ..................... C30B 15/04 117/19 6,949,140 132 9/2005 Sarayama et al. 7,175,705 132 2/2007 Fujimura et al. 8,475,593 132 7/2013 Iwata et al. 2005/0241570 Al 11/2005 Lebbou et al. 2009/0241829 Al 10/2009 Han et al. 20...

matrix-fibril morphology and structure of polyblend fibers in melt spinning process: a review

the mechanism and the parameters affecting the matrix-fibril morphology in melt spun polyblend fibers are discussed. the properties of polymeric blends depend considerably on their final morphologies. blending of two miscible polymers, normally gives rise to formation of a single-phase morphology while blending of two immiscible polymers can create a two or three (in case of using compatibilize...