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A. 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 holSolution Blow Spinning A New Method to Produce Micro
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Apparatus for melt-spinning . United States Patent 4050866 . Abstract: An apparatus for melt-spinning a polymer such as a polyamide or polyester has a heating jacket provided
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Melt spinning of synthetic polymeric filaments. A. Rawal, S. Mukhopadhyay, in Advances in Filament Yarn Spinning of Textiles and Polymers, 2014 4.1 Introduction. Melt spinning is
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US4035127A - Melt spinning apparatus - Google Patents. A compact melt spinning apparatus having a screw-type extruder or extruders is provided. A metering pump or
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2013-10-1 Polyester, Nylon, Olefin, Polypropylene, saran, and sulfur etc. are produced via melt spinning process. Advantages of Melt Spinning: Can be used for both staple and
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The structural changes during melt spinning process of polyethylene, polypropylene and polybutene-1 were studied making use of direct measurements. A model spinning
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The melt spinning apparatus as defined in claim 1 wherein each of said inner openings of said annular rings has an inner edge surface which is inclined to define a portion of a
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Melt spinning process and apparatus . United States Patent 6132670 . Abstract: A process for spinning polymeric filaments into yarn at high spinning speeds for producing yarn of
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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
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1997-7-3 METHOD AND APPARATUS FOR INTRODUCING CONTROLLED SPIN IN OPTICAL FIBERS 申请号 EP97934884.4 申请日 1997-07-03 公开(公告)号
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An apparatus for melt-spinning a polymer such as a polyamide or polyester has a heating jacket provided with a cavity which accommodates a spinning assembly. Preferably, the spinning assembly is exchangeable in the jacket from above and includes a housing adapted to contain a molten polymer and a spinnerette plate near one end thereof. The opposite
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Apparatus for melt-spinning . United States Patent 4050866 . Abstract: An apparatus for melt-spinning a polymer such as a polyamide or polyester has a heating jacket provided with a cavity which accommodates a spinning assembly. Preferably, the spinning assembly is exchangeable in the jacket from above and includes a housing adapted to contain ...
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A melt spinning apparatus is disclosed which is adapted for dividing a molten polymer into a plurality of streams to form synthetic filaments. The apparatus comprises a spin block assembly having two opposite sides, and two separate heating chambers disposed adjacent respective ones of the sides of the spin block assembly. The two heating ...
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Aug 10, 2020 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 thermal transmission electrical insulation ...
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The melt spinning apparatus as defined in claim 1 wherein each of said inner openings of said annular rings has an inner edge surface which is inclined to define a portion of a cone and which is inclined at an angle which generally conforms to the direction of inclination of the conical arrangement of said filaments. 3. The melt spinning ...
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A melt spinning apparatus is disclosed which comprises a stationary melt supply assembly which includes a spin block, and a nozzle assembly releasably connected to the spin block. The means for releasably connecting the nozzle assembly to the spin block includes a cylindrical connecting plug fixed to the spin block, and a tubular casing for the ...
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Melt spinning apparatus . United States Patent 6705852 . Abstract: There is provided a melt spinning apparatus capable of reducing the unevenness of fineness of a yarn. The nozzles of the spinning plate are arranged annular in at least one circle, and a cylindrical filter is disposed at an exit of a cooling wind in the cooling device so as to ...
MoreA 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
MoreThe melt spinning apparatus as defined in claim 13 wherein the lower cooling shaft comprises a tube which has on its inlet end a condenser and on its outlet end a diffuser, with the condenser and diffuser being connected at their most narrow cross sections. 21. The melt spinning apparatus as defined in claim 20 wherein the lower cooling shaft ...
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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
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A. 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 holSolution Blow Spinning A New Method to Produce Micro and Nanofibers from Polymer Solutions iation of melt spinning that produces nanofibers is
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A melt-spinning apparatus includes a feed device for feeding a molten polymer composition from at least one extruder to a multiplicity of spinning orifices provided by a plurality of spinnerets for producing a multiplicity of discrete continuous extrudates emerging from the orifices in a generally downward direction; quenching devices for cooling the extrudates
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A melt spinning apparatus is disclosed which is adapted for dividing a molten polymer into a plurality of streams to form synthetic filaments. The apparatus comprises a spin block assembly having two opposite sides, and two separate heating chambers disposed adjacent respective ones of the sides of the spin block assembly. The two heating chambers are
MoreIn a melt spinning operation, a heated wash gas such as nitrogen or nitrogen and air is blown across the melt spinning nozzles to remove vol... Toggle navigation. ... Method and apparatus for melt spinning. 0121315 - EP84301192A2 - EPO Application Feb 23, 1984 - Publication Oct 10, 1984
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1999-3-24 A melt spinning apparatus that prevents filaments passing through an unstable area from contacting one another. In a melt spinning method for thinning and solidifying each molten filament F ejected from a plurality of nozzles to obtain a yarn Y comprising a plurality of filaments F, each filament F being thinned is charged to the same polarity, and when
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1. A melt spinning apparatus comprising an apparatus body, wherein the apparatus body includes: a spinning nozzle through which a molten resin is extruded into a filament; a primary air channel for directing primary airflow to the filament of the molten resin extruded from the spinning nozzle; and a secondary air channel for directing secondary airflow to
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Product Description. AT227 Fiber Melt Spinning System is a main key equipment in synthetic fibre production. This machine uses high temperature ceramic to heat and melt the polymer sample, and extrude the sample to be liquid trickle from a spinneret under the effect of inert gas pressure, then nascent fibers form under the effect of air cooling.
More2021-4-26 The melt spinning distance (the distance between the collector and the nozzle) ... Formhals, A. Process and apparatus for preparing artificial threads: US50028330A. 1934-10-02.
More2017-4-12 The melt spinning process for fiber making is similar to that applied to synthetic polymers such as PET and polyamides, which is shown in Fig. 5.4 and includes three major steps: (1) the pellets supplied in succession are re-melted and correctly measured through the gear pump; (2) the molten fluid then enters into the filter pack and put out ...
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2017-6-20 Here, we use a melt-spinning-spark plasma sintering process for making p-type Bi0.36Sb1.64Te3 thermoelectric materials and evaluate the relation between the process conditions and thermoelectric performance. We vary the Cu wheel rotation speed from 1000 rpm (~13 ms−1) to 4000 rpm (~52 ms−1) during the melt spinning process to change the ...
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