apparatus for making melt spinning

Melt Spinning Development and Melt Spinning Machine

2018-7-4 · Melt spinning, is a forming method using polymer melt as raw material (similar to plastic extrusion) and melt spinning machine (similar to plastic extruder). The melt spinning method can be used for spinning any polymer that can melt …

Portable melt electrospinning apparatus without an extra ...

Fig. 4 shows the FTIR spectra of the melt electrospun PCL fibers fabricated by the designed apparatus under a heating temperature of 150 °C, spinning distance of 10 cm and with spinneret of 22G. From the FTIR spectra, the chemical structure of PCL can be obviously found, such as the characteristic peak at 2946 cm −1 and 2865 cm −1 corresponding to the asymmetric and …

Process and Apparatus for Melt-Spinning, Drawing and ...

2012-10-30 · The invention relates to a process for melt-spinning, drawing and winding multiple synthetic threads and to an apparatus for performing the process. The synthetic threads are spun concurrently side by side through extrusion of fine filamentous strands, cooled down and hauled off to be then collectively drawn as a sheet of threads and wound up on bobbins.

melt spinning

2021-6-3 · Traduction de "melt spinning" en français. filage par fusion à grande vitesse de fibres de fluoropolymère. A melt spinning process is also disclosed using a polyether polyurethane with a crosslinking agent. L''invention concerne également un procédé de filage par fusion au moyen d''un polyéther-polyuréthanne avec un agent de réticulation.

Melt Electrospinning

2019-1-1 · To increase the spinning yield, Komarek and Martinova (2010) of the University of Science and Technology, Czech Republic, proposed a slit spinning apparatus, as shown in Fig. 11.1.Through the coat-hanger type flow channel to obtain the film melt, and under the action of an electrical field force, the results showed that the jet distance of polypropylene is 6.3 mm, the …

Amorphous Metals

The structure of amorphic metals is explained using models. The melt-spinning method for making flash-cooled metallic glass is shown. Time-distorted sequences clarify the melt-spinning method, especially the fusion of several melt-jets.

Apparatus for melt spinning feedstock material

1998-7-10 · Apparatus for melt spinning feedstock material . United States Patent 6116880 . Abstract: A spinner head provides for the production of melt-spun product. The spinner head includes a base and a cover spaced from the base. A plurality of discrete spaced apart elongate heating elements are positioned between the base and the cover and define a ...

Melt-spinning apparatus for polyester filaments

A melt-spinning apparatus is disclosed for reducing the birefringence variability of melt-spun yarn made at high pack throughputs. It involves extruding polymer at an average mass-flow rate through a first group of orifices (defined by specific location in the spinnerette), that is greater than the mass-flow rate of polymer through a second group of orifices (also defined by location in …

(PDF) Apparatus for preparing electrospun nanofibres: a ...

apparatus have appeared to prepare for variou s nano-. fibres, such as vibration electrosp inning, melt electro-. spinning, siro-electrosp inning, magneto-elec trospinning. and bubble ...

Structural formation during melt spinning process ...

The structural changes during melt spinning process of polyethylene, polypropylene and polybutene-1 were studied making use of direct measurements. A model spinning apparatus was devised for this purpose. Measurements of diameter, birefringence and surface temperature were carried out. Wide and small angle x-ray photographs were taken at the successive points …

A new prototype melt-electrospinning device for the ...

2019-3-29 · A derivative of the melt-blowing technique is the Laval spinning method, which also uses an airstream to draw the fiber from the nozzle . However, the shape of the longitudinal Laval nozzle accelerates the air, making the process more efficient than conventional melt-blowing.

Spinning Apparatus

The melt spinning process is an important method based on continuous steady-state elongational flow of processing. Typical industrial melt spinning apparatus is shown in Fig. 7.2. 4 In this method, molten polymer is extruded through spinnerets followed by rapid quenching, causing solidification. Fibers can then be stretched and annealed to obtain high mechanical properties. …

SPINNING PROCESS

2020-6-5 · MELT SPINNING In this process, a polymer is melted and heated to a suitable viscosity for fiber production. The melted polymer is pushed through a spinneret, which is a type of die consisting of several small holes. Each hole produces an individual fiber, and the number of holes on a spinneret defines the number of fibers in the yarn. The melted polymer fibers then …

(PDF) Fabrication of metal microfibers by melt-spinning

The modification of the melt spinning device leads to higher quenching rates up to 108!C/s. The high quenching rate made it possible to make fully amorphous stainless steel fibers for the very ...

Melt Spinning, Dry spinning and Wet Spinning Method ...

2015-2-26 · Spinning process: In melt spinning, polymer is heated and it melts to form a liquid spinning solution or dope. Chips of polymers are fed to a hopper which is heated. There is a grid (sieve) at the base which permits only molten liquid to …

Melt Spinning Machine for Sale

Melt Spinning Machine, also name Lab Melt Spinning Machine is an ideal chemical fiber spinning machine for teaching use. Not only it possesses excellent performance, high cost performance and stable operation, but it can be customized to meet requirement of different capacities and other technical parameters.

Melt electrospinning machine from TONG LI TECH

Melt electrospinning writing (MEW) is a computer-aided fiber deposition process based on an electrohydrodynamic working principle to make highly ordered arrangements of ultrafine fibers with designed 2D or 3D structure. Advantages of Melt electrospinning Compared with Solution electrospinning: - The flight path of the melt …

Electrospinning apparatus,Electrospinning setup

TL-Pro Electrospinning apparatus is equiped with both positive & negative high voltage supply devices,4-channel syringe pump, insulation inner wall, high clean chamber, various spinnerets including single needle, 5-needle, coaxial, side by …

METHOD AND APPARATUS FOR MELT-SPINNING …

I claim 1. In a process for melt-spinning hollow nylon or polyester fibers, the improvement for maintaining a uniform hollow which comprises extruding the molten polymer in the form of thin-walled hollow filaments from spinneret orifices having an annular melt-passageway surrounding a central gas channel, and feeding nitrogen into the filament hollow through the gas channel at a …

Melt spinning apparatus

The melt spinning apparatus as defined in claim 1 wherein said threads on the connecting plug and the threads on said casing each have axially extending recesses extending to the root of the threads and so as to permit rapid assembly and disassembly by axially moving the casing onto the plug and then rotating the casing a partial turn. ...

Self-powered portable melt electrospinning for in situ ...

2020-8-10 · Melt e-spinning apparatus and melt e-spinning process. The self-powered hand-held melt e-spinning apparatus has a weight of about 450 g and a precise size of 24 cm in length, 6 cm in thickness and 13 cm in height, which is suitable for one-handed operation. The device comprises a heating unit, a high voltage unit, a propulsion unit and a ...

A new magnetic melt spinning device for patterned ...

2021-4-26 · The melt spinning distance (the distance between the collector and the nozzle) ... Formhals, A. Process and apparatus for preparing artificial …

Portable melt electrospinning apparatus without an extra ...

Great efforts have been made to modify the melt electro-spinning apparatus.9–17 For the heating system, besides the electrical heating method,9,10 heated air,11–14 circulating liquid

Apparatus for melt spinning feedstock material

2018-12-3 · Apparatus for melt spinning feedstock material (PAT - US6116880) '' '' BOGUE BEUFORD A, '' '' ABDI MESFIN B, '' '' BAYARD CLAUDE, '' '' MADSEN ROBERT A, '' '' PERKINS JAMES H Patent: United STATES Patent - United States. Application: US19980113707 on 1998-07-10. Publication: 2000-09-12. Abstract. A spinner head provides for the production of melt …

Apparatus for melt spinning hollow fibers

Apparatus for melt spinning hollow fibers (PAT - US4278415) PFEIFFER RONALD E. AMERICAN CYANAMID CO. Patent: United STATES Patent - United States. Application: US19790013353 on 1979-02-21. Publication: 1981-07-14. Abstract. Highlight Terms No biological terms identified Using a conventional spinneret plate with suitable pins inserted in the ...

Lab Scale Melt Spinning Machine upto 400 oC for …

MSK-MS-02 is a Lab-scale melt spinning machine for preparing various polymer-based composite fiber at micron or nanometer diameter, such as carbon composite, PTFE and PEEK .to explore new generation composite materials. SPECIFICATIONS. Input Power. 208~240 VAC single phase, 50/60Hz. Max power consumption: 5000 W.

Lab Melt Spinning Machine | Melt Spinning Tester

Lab Melt Spinning Machine DW7090A. FYI Lab Melt Spinning Machine with affordable price.The polymer was heated and melted by a three-stage cast copper heating ring, and the gas was compressed to protect the gas continuously and quantitatively is extruded evenly from the capillary pores of the spinneret and becomes a liquid stream and then forming the primary …

(PDF) Self-powered portable melt electrospinning for in ...

2020-8-10 · apparatus in 5 min and SEM images of fibers with various polymer materials produced by the hand‑held melt e‑spinning apparatus to further test . the performances of the apparatus.

Apparatus for melt spinning feedstock material having a ...

Apparatus for melt spinning feedstock material having a flow restricting ring . United States Patent 5834033 . Abstract: A spinner head provides for the production of high fat content floss. The spinner head includes a base and a cover spaced from the base. A plurality of discrete spaced apart elongate heating elements are positioned between ...

APPARATUS FOR MELT SPINNING FEEDSTOCK MATERIAL …

1998-5-4 · APPARATUS FOR MELT SPINNING FEEDSTOCK MATERIAL HAVING A FLOW RESTRICTING RING (PAT - EP0981281) ABDI Mesfin, BAYARD Claude A., PERKINS James Fuisz Technologies Ltd. Patent: Publ. of Application with search report - …

Melt-spinning apparatus for polyester filaments

Melt-spinning apparatus for polyester filaments - Celanese Corpo…