WO2010004600A1 - A wire element, a process for realizing a wire element and a device for actuating the process - Google Patents

A wire element, a process for realizing a wire element and a device for actuating the process Download PDF

Info

Publication number
WO2010004600A1
WO2010004600A1 PCT/IT2008/000469 IT2008000469W WO2010004600A1 WO 2010004600 A1 WO2010004600 A1 WO 2010004600A1 IT 2008000469 W IT2008000469 W IT 2008000469W WO 2010004600 A1 WO2010004600 A1 WO 2010004600A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubular body
predetermined material
wire element
stage
longitudinal axis
Prior art date
Application number
PCT/IT2008/000469
Other languages
French (fr)
Inventor
Aldo Mingozzi
Original Assignee
Techno, Plastic S.R.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Techno, Plastic S.R.L. filed Critical Techno, Plastic S.R.L.
Priority to PCT/IT2008/000469 priority Critical patent/WO2010004600A1/en
Publication of WO2010004600A1 publication Critical patent/WO2010004600A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154—Coating solid articles, i.e. non-hollow articles

Definitions

  • a Wire Element a Process for Realising a Wire Element and a Device for Actuating the Process.
  • the invention relates to a wire element, a process for realising the wire element and a device for actuating the method.
  • the invention relates in particular to a wire element exhibiting abrasive properties and which can be associated to brushes or rollers predisposed to perform smoothing, polishing or like operations requiring a surface abrasion of an object Background Art
  • wire elements also known as monofilaments, realised by extrusion of thermoplastic polymers.
  • an abrasive material in the form of a powder or granules is added during the stage of plastification and fusion of the polymer.
  • the abrasive materials used in the sector comprise silicates, various oxides, industrial diamond.
  • the dispersion of the abrasive material in the polymer is therefore homogeneous, with the consequence that the abrasive material also appears on the lateral surfaces of the monofilament. This leads to two fundamental drawbacks.
  • the abrasive particles which appear on the surfaces of the monofilament detach rather easily and are dispersed into the surrounding atmosphere, with a consequent waste of material and environmental pollution.
  • the production of monofilaments and the association of the monofilaments to brushes or other supports in general is done using specific equipment, considerable effects of wear occur on all the parts which, in various ways, enter into contact with the monofilaments, including the extrusion matrices.
  • the main aim of the present invention is to provide a wire element, or monofilament, which overcomes the drawbacks of known-type monofilaments.
  • An advantage of the wire element of the present invention is that the dispersion of the abrasive material is considerably lower than in the wire elements of known type.
  • a further advantage of the wire element of the present invention is to considerably limit wear of all the parts and the equipment which are used for the production of the wire element and for the application of the wire element to brushes or supports of other nature. Disclosure of Invention
  • the wire element 1 of the present invention comprises a tubular body 2 provided with a longitudinal axis X.
  • the tubular body exhibits a lateral surface 2a, substantially smooth, and two head surfaces 2b.
  • the tubular body 2 is realised preferably in a thermoplastic material, for example a polymer, which is liable to extrusion.
  • An axial cavity 3 is closed internally of the tubular body 2 concentrically of the longitudinal axis X.
  • a predetermined material 4 is arranged internally of the axial cavity 3, which material 4, in a preferred embodiment of the wire element, emerges at least partially on a head surface 2b of the tubular body 2.
  • the material 4 contained internally of the axis cavity 3 comprises an abrasive material, for example a silicate, an oxide or a compound containing industrial diamond.
  • an abrasive material for example a silicate, an oxide or a compound containing industrial diamond.
  • the abrasive material Being contained internally of an axial cavity 3, without emerging from the lateral surface of the tubular element 2, the abrasive material is lost into the environment in considerably lower quantities with respect to the wire elements of known type. Further, since the abrasive material does not emerge from the lateral surface 2a of the tubular element 2, the abrasive action exertable by the wire element is limited to only the head surfaces 2b of the tubular element 2.
  • each wire element and thus the brush or roller in its entirety, remains unvaried over time as each wire element, as it gets worn, regenerates itself as new abrasive material emerges onto the head surface thereof.
  • the material contained internally of the axial cavity 3 of the tubular body 2 can be of a different nature and not abrasive.
  • the material can comprise, for example, an electrical conductor to neutralise static loads, or a chemically active material, for example with anti-bacterial properties, or a detergent or something else besides.
  • the wire element 1 can be realise via actuation of a particularly efficient and functional process devised by the applicant.
  • the process includes extruding a continuous tubular body 2, provided with an axial cavity 3, via a matrix 10 provided with a hollow core 11 affording an axial through-channel 11a.
  • the matrix 10 is provided with a through- channel 10a which extends concentrically to a longitudinal axis X and is predisposed to allow passage of a flow of material to be extruded.
  • the through-channel 10a exhibits an outlet section 10b for the extruded material, while the supply of the material to be extruded is done via a supply channel 14 which opens into the through-channel 10a of the matrix
  • the transversal section of the through-channel 10a is annular.
  • the core 11 is arranged internally of the through-channel 10a of the matrix, concentrically to the longitudinal axis X.
  • the through-channel 11a of the core 11 is concentric to the longitudinal axis X and is predisposed to allow passage of a flow of air and/or a predetermined material 4.
  • a flow of air and abrasive material 4 is injected through the through-channel 11a of the core 11 such that the abrasive material 4 is arranged internally of an axial cavity 3 of the tubular body 2.
  • the wire element 1 thus exits the matrix; the tubular body 2 of the wire element 1 contains the material 4 inside the axial cavity 3.
  • the wire element is narrowed by use of devices of known type and not illustrated, in order to cause a shrinking of the axial cavity 3 of the tubular body about the predetermined material 4.
  • a calibration of the wire element 1 is also made in order to cause a further narrowing of the axial cavity 3 about the predetermined material 4.
  • the calibration of the wire element 1 is preferably done by causing the wire element to pass through a calibrated ring 12 which is arranged concentrically of the longitudinal axis X in proximity of the outlet section 10b of the matrix 10.
  • the calibrated ring 12 is associated to an inlet opening of a hollow cylindrical element 15 through which the wire element 1 is made to pass.
  • the narrowing and calibrating of the wire element lead to a shrinking of the tubular body 2 about the material 4, which aggregates and is solidly stabilised internally of the axial cavity 3.
  • the wire element 1 is subjected, on exiting the matrix 10, to a first stage of cooling by sending a flow of cooling fluid, for example water, onto the lateral surface of the tubular body 2.
  • a flow of cooling fluid for example water
  • this first stage of cooling the tubular body 2 is done upstream of the calibration stage.
  • one or more openings 13, afforded at the inlet opening of the cylindrical element 15, are arranged concentrically to the longitudinal axis X and directed such as to send a flow of cooling fluid along radial directions with respect to the longitudinal axis X.
  • the opening or openings 13 are arranged and conformed such as to send a flow of cooling fluid forming a ring bout the lateral surface 2a of the tubular body 2, such that the cooling is done uniformly.
  • the opening or the openings 13 are preferably positioned in proximity of the calibrated ring 12, in particular immediately upstream of the ring itself.
  • a second cooling stage of the wire element is included.
  • This second cooling stage is preferably done by circulating a cooling fluid, which can be the same as the one for the first cooling stage, internally of the cylindrical element 15 through which the wire element 1 passes.
  • a stage of heating and hot- traction of the wire element 1 can be included with the aim of enabling orientation of the polymer chains and improving the mechanical characteristics of the tubular element 2.
  • the described process and device enable a very efficient realisation of the wire element 1 of the present invention.
  • the wire element 1 as obtained herein exhibits a constant transversal section and a considerable stability of the material contained in the tubular body 2.

Abstract

A wire element comprising: a tubular body (2) which closes an axial cavity (3) and is provided with a lateral surface (2a) which is substantially smooth; a predetermined material (4), arranged internally of the axial cavity (3), which emerges at least partially onto a head surface (2b) of the tubular body (2).

Description

A Wire Element, a Process for Realising a Wire Element and a Device for Actuating the Process.
Technical Field
The invention relates to a wire element, a process for realising the wire element and a device for actuating the method.
The invention relates in particular to a wire element exhibiting abrasive properties and which can be associated to brushes or rollers predisposed to perform smoothing, polishing or like operations requiring a surface abrasion of an object Background Art
The market has for some time comprised wire elements, also known as monofilaments, realised by extrusion of thermoplastic polymers. In the known-type monofilaments, an abrasive material in the form of a powder or granules is added during the stage of plastification and fusion of the polymer. The abrasive materials used in the sector comprise silicates, various oxides, industrial diamond. The dispersion of the abrasive material in the polymer is therefore homogeneous, with the consequence that the abrasive material also appears on the lateral surfaces of the monofilament. This leads to two fundamental drawbacks. Firstly, the abrasive particles which appear on the surfaces of the monofilament detach rather easily and are dispersed into the surrounding atmosphere, with a consequent waste of material and environmental pollution. Further, as the production of monofilaments and the association of the monofilaments to brushes or other supports in general is done using specific equipment, considerable effects of wear occur on all the parts which, in various ways, enter into contact with the monofilaments, including the extrusion matrices. In order to obviate this drawback at least in part, it is common to apply a slim film of thermoplastic polymer on the surface of the monofilaments. This leads to an increase in production times and costs of the monofilaments. The main aim of the present invention is to provide a wire element, or monofilament, which overcomes the drawbacks of known-type monofilaments.
An advantage of the wire element of the present invention is that the dispersion of the abrasive material is considerably lower than in the wire elements of known type.
A further advantage of the wire element of the present invention is to considerably limit wear of all the parts and the equipment which are used for the production of the wire element and for the application of the wire element to brushes or supports of other nature. Disclosure of Invention
Further characteristics and advantages of the invention will better emerge from the detailed description that follows, made with reference to the accompanying figures of the drawings, which are provided by way of non- limiting example, and in which: figure 1 is a schematic view in partial section of a wire element of the present invention; figure 2 is a schematic illustration of a device for realising the wire element of figure 1. With reference to the figures of the drawings, the wire element 1 of the present invention comprises a tubular body 2 provided with a longitudinal axis X. The tubular body exhibits a lateral surface 2a, substantially smooth, and two head surfaces 2b. The tubular body 2 is realised preferably in a thermoplastic material, for example a polymer, which is liable to extrusion. An axial cavity 3 is closed internally of the tubular body 2 concentrically of the longitudinal axis X. A predetermined material 4 is arranged internally of the axial cavity 3, which material 4, in a preferred embodiment of the wire element, emerges at least partially on a head surface 2b of the tubular body 2.
In the preferred embodiment of the wire element, the material 4 contained internally of the axis cavity 3 comprises an abrasive material, for example a silicate, an oxide or a compound containing industrial diamond. Being contained internally of an axial cavity 3, without emerging from the lateral surface of the tubular element 2, the abrasive material is lost into the environment in considerably lower quantities with respect to the wire elements of known type. Further, since the abrasive material does not emerge from the lateral surface 2a of the tubular element 2, the abrasive action exertable by the wire element is limited to only the head surfaces 2b of the tubular element 2. In this way, the extrusion and any other manipulation of the wire elements, for example in order to apply them to a support for realising a brush or a roller, leads to a considerable limitation in the wear of the extrusion matrix and the parts which enter into contact with the wire elements. The fact that the abrasive material emerges only from the head surface 2b of the tubular element 2 makes the use of the wire element in brushes or abrasive rollers more rational; the part of the wire elements which enters into contact with the object to be abraded is in fact the terminal portion of each wire element, and in particular the head surface of each wire element. The abrasive action of each wire element, and thus the brush or roller in its entirety, remains unvaried over time as each wire element, as it gets worn, regenerates itself as new abrasive material emerges onto the head surface thereof. In alternative embodiments of the wire element 1, the material contained internally of the axial cavity 3 of the tubular body 2 can be of a different nature and not abrasive. The material can comprise, for example, an electrical conductor to neutralise static loads, or a chemically active material, for example with anti-bacterial properties, or a detergent or something else besides.
The wire element 1 can be realise via actuation of a particularly efficient and functional process devised by the applicant. The process includes extruding a continuous tubular body 2, provided with an axial cavity 3, via a matrix 10 provided with a hollow core 11 affording an axial through-channel 11a.
As can be seen in figure 2, the matrix 10 is provided with a through- channel 10a which extends concentrically to a longitudinal axis X and is predisposed to allow passage of a flow of material to be extruded. The through-channel 10a exhibits an outlet section 10b for the extruded material, while the supply of the material to be extruded is done via a supply channel 14 which opens into the through-channel 10a of the matrix
10. Since an axial part of the through-channel 10a is occupied by the core
11, the transversal section of the through-channel 10a is annular. The core 11 is arranged internally of the through-channel 10a of the matrix, concentrically to the longitudinal axis X. The through-channel 11a of the core 11 is concentric to the longitudinal axis X and is predisposed to allow passage of a flow of air and/or a predetermined material 4. During extrusion of the tubular body 2, a flow of air and abrasive material 4 is injected through the through-channel 11a of the core 11 such that the abrasive material 4 is arranged internally of an axial cavity 3 of the tubular body 2. The wire element 1 thus exits the matrix; the tubular body 2 of the wire element 1 contains the material 4 inside the axial cavity 3. On exiting the matrix 10, the wire element is narrowed by use of devices of known type and not illustrated, in order to cause a shrinking of the axial cavity 3 of the tubular body about the predetermined material 4.
On exiting the matrix 10, a calibration of the wire element 1 is also made in order to cause a further narrowing of the axial cavity 3 about the predetermined material 4. The calibration of the wire element 1 is preferably done by causing the wire element to pass through a calibrated ring 12 which is arranged concentrically of the longitudinal axis X in proximity of the outlet section 10b of the matrix 10. The calibrated ring 12 is associated to an inlet opening of a hollow cylindrical element 15 through which the wire element 1 is made to pass. The narrowing and calibrating of the wire element lead to a shrinking of the tubular body 2 about the material 4, which aggregates and is solidly stabilised internally of the axial cavity 3.
The wire element 1 is subjected, on exiting the matrix 10, to a first stage of cooling by sending a flow of cooling fluid, for example water, onto the lateral surface of the tubular body 2. Preferably this first stage of cooling the tubular body 2 is done upstream of the calibration stage. To this end, one or more openings 13, afforded at the inlet opening of the cylindrical element 15, are arranged concentrically to the longitudinal axis X and directed such as to send a flow of cooling fluid along radial directions with respect to the longitudinal axis X. In particular, the opening or openings 13 are arranged and conformed such as to send a flow of cooling fluid forming a ring bout the lateral surface 2a of the tubular body 2, such that the cooling is done uniformly. The opening or the openings 13 are preferably positioned in proximity of the calibrated ring 12, in particular immediately upstream of the ring itself.
Following the calibration, a second cooling stage of the wire element is included. This second cooling stage is preferably done by circulating a cooling fluid, which can be the same as the one for the first cooling stage, internally of the cylindrical element 15 through which the wire element 1 passes. On exiting the cylindrical element 15 a stage of heating and hot- traction of the wire element 1 can be included with the aim of enabling orientation of the polymer chains and improving the mechanical characteristics of the tubular element 2.
The described process and device enable a very efficient realisation of the wire element 1 of the present invention. The wire element 1 as obtained herein exhibits a constant transversal section and a considerable stability of the material contained in the tubular body 2.

Claims

Claims.
1). A wire element, wherein it comprises: a tubular body (2) which surrounds an axial cavity (3) and is provided with a lateral surface (2a) which is substantially smooth; a predetermined material (4), arranged internally of the axial cavity (3).
2). The wire element of claim 1, wherein the predetermined material (4) emerges at least partially onto a head surface (2b) of the tubular body (2).
3). The wire element of claim 2, wherein the predetermined material (4) comprises an abrasive material.
4). The wire element of claim 2, wherein the predetermined material (4) comprises an electrical conductor.
5). The wire element of claim 2, wherein the predetermined material (4) comprises an antibacterial substance.
6). The element of claim 2, wherein the predetermined material (4) comprises a detergent.
7). A process for realising a wire element, comprising following stages: extrusion of a continuous tubular body (2) through a matrix (10) provided with a hollow core (11) affording an axial through-channel; injection of air and a predetermined material (4) through the core (11) such that the predetermined material (4) is arranged internally of an axial cavity
(3) of the tubular body (2).
8). The process of claim 7, comprising, on exiting the matrix (10), a stage of narrowing the hollow tubular body (2) containing the predetermined material (4) in order to cause a shrinking of the axial cavity (3) about the predetermined material (4).
9). The process of claim 8, comprising, on exiting the matrix (10), a stage of calibration of the tubular body (2) containing the predetermined material
(4) in order to determine a further shrinking of the axial cavity (3) about the predetermined material (4).
10). The process of claim 9, wherein the stage of calibration occurs by passing the tubular body (2) containing the predetermined material (4) through a calibrated ring (12).
11). The process of claim 10, comprising a first stage of cooling the tubular body (2) containing the predetermined material (4) by sending a flow of cooling fluid onto a lateral surface of the continuous tubular body (2).
12). The process of claim 11, wherein the first cooling stage is done upstream of the stage of calibration by sending the cooling fluid onto the lateral surface of the continuous tubular body (2) along radial directions with respect to the tubular body (2), such that the tubular body (2) crosses a ring of cooling fluid.
13). The process of claim 12, comprising a second stage of cooling the tubular body (2) containing the predetermined material (4) following the stage of calibration thereof.
14). The process of claim 9, comprising a stage of heating and hot-traction of the tubular body (2) containing the predetermined material (4) following the second cooling stage.
15). A device for producing a wire element, wherein it comprises: a matrix (10) provided with a through-channel (10a) which extends concentrically to a longitudinal axis (X) and is predisposed to allow passage of a flow of material to be extruded; a core (H)5 arranged internally of the through-channel (10a) concentrically to the longitudinal axis (X), which is provided with a through-channel (1 Ia), concentric to the longitudinal axis (X), which through-channel (1 Ia) is predisposed to allow passage of a flow or air and/or a predetermined material.
16). The device of claim 15, comprising a calibrated ring (12) arranged concentrically to the longitudinal axis (X) in proximity of an outlet of the matrix (10).
17). The device of claim 15, comprising one or more openings (13) arranged concentrically to the longitudinal axis (X) and directed such as to enable a flow of cooling liquid to be sent along transversal directions with respect to the longitudinal axis (X).
PCT/IT2008/000469 2008-07-11 2008-07-11 A wire element, a process for realizing a wire element and a device for actuating the process WO2010004600A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2008/000469 WO2010004600A1 (en) 2008-07-11 2008-07-11 A wire element, a process for realizing a wire element and a device for actuating the process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2008/000469 WO2010004600A1 (en) 2008-07-11 2008-07-11 A wire element, a process for realizing a wire element and a device for actuating the process

Publications (1)

Publication Number Publication Date
WO2010004600A1 true WO2010004600A1 (en) 2010-01-14

Family

ID=40609855

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2008/000469 WO2010004600A1 (en) 2008-07-11 2008-07-11 A wire element, a process for realizing a wire element and a device for actuating the process

Country Status (1)

Country Link
WO (1) WO2010004600A1 (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH254242A (en) * 1946-09-21 1948-04-30 Steffen Werner Drill bit for mines, process for its manufacture and apparatus for carrying out this process.
GB1172176A (en) * 1967-03-30 1969-11-26 Semperit Ag Improvements in or relating to Processes and Devices for the Manufacture of Extruded Tubes
US3668288A (en) * 1968-11-18 1972-06-06 Keiichi Takahashi Method for making thermoplastic synthetic resin hollow structure articles
US4207376A (en) * 1978-06-15 1980-06-10 Toray Industries, Inc. Antistatic filaments having an internal layer comprising carbon particles and process for preparation thereof
JPS62238823A (en) * 1986-04-08 1987-10-19 Toko Gijutsu Kaihatsu Kk Sheath-core conjugated yarn and processing method thereof
DE19546823A1 (en) * 1995-12-15 1997-06-19 Oeps Gmbh Low energy fuse cord for mining and tunnelling
US5837179A (en) * 1992-03-19 1998-11-17 Minnesota Mining And Manufacturing Copmany Method of making abrasive filaments comprising abrasive-filled thermoplastic elastomer
JP2001301008A (en) * 2000-04-21 2001-10-30 Mitsubishi Cable Ind Ltd Sizing device for extruded moldings and controlling method for outside diameter
US6352471B1 (en) * 1995-11-16 2002-03-05 3M Innovative Properties Company Abrasive brush with filaments having plastic abrasive particles therein
US20030035953A1 (en) * 2000-03-03 2003-02-20 Georg Weihrauch Bristle impregnated with an anti-microbial agent, brushware comprising bristles of this type and packaging for bristles, or brushware of this type

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH254242A (en) * 1946-09-21 1948-04-30 Steffen Werner Drill bit for mines, process for its manufacture and apparatus for carrying out this process.
GB1172176A (en) * 1967-03-30 1969-11-26 Semperit Ag Improvements in or relating to Processes and Devices for the Manufacture of Extruded Tubes
US3668288A (en) * 1968-11-18 1972-06-06 Keiichi Takahashi Method for making thermoplastic synthetic resin hollow structure articles
US4207376A (en) * 1978-06-15 1980-06-10 Toray Industries, Inc. Antistatic filaments having an internal layer comprising carbon particles and process for preparation thereof
JPS62238823A (en) * 1986-04-08 1987-10-19 Toko Gijutsu Kaihatsu Kk Sheath-core conjugated yarn and processing method thereof
US5837179A (en) * 1992-03-19 1998-11-17 Minnesota Mining And Manufacturing Copmany Method of making abrasive filaments comprising abrasive-filled thermoplastic elastomer
US6352471B1 (en) * 1995-11-16 2002-03-05 3M Innovative Properties Company Abrasive brush with filaments having plastic abrasive particles therein
DE19546823A1 (en) * 1995-12-15 1997-06-19 Oeps Gmbh Low energy fuse cord for mining and tunnelling
US20030035953A1 (en) * 2000-03-03 2003-02-20 Georg Weihrauch Bristle impregnated with an anti-microbial agent, brushware comprising bristles of this type and packaging for bristles, or brushware of this type
JP2001301008A (en) * 2000-04-21 2001-10-30 Mitsubishi Cable Ind Ltd Sizing device for extruded moldings and controlling method for outside diameter

Similar Documents

Publication Publication Date Title
US20150017888A1 (en) Abrasive bristle, method for the manufacture thereof, brush with abrasive bristles and method for the surface treatment of a workpiece with a brush having abrasive bristles
JP4233112B2 (en) Method and apparatus for producing plastic products mixed with reinforcing fibers
CN107249838A (en) Method and apparatus for producing fibrous composite
BR112014014178B1 (en) Injection mold for a wire saw, process for producing a wire saw and resulting wire saw
CN109735984B (en) Preparation method and production device of high-strength coated fishing line
US20020180095A1 (en) Thermally conductive carbon fiber extrusion compounder and method of using same
WO2010004600A1 (en) A wire element, a process for realizing a wire element and a device for actuating the process
DE102006019562B4 (en) Provided with reinforcing element hose line and method and apparatus for their preparation
TWI466770B (en) Arrangement and method in connection with extrusion tools
US6872351B2 (en) Method for marking monofilaments
US3859017A (en) Extrusion of sheath onto elongated support using decompression zones
US3957942A (en) Process of coating an elongated support
KR101137135B1 (en) Reproduction coating yarn and method for manufacturing thereof
JP2007038328A (en) Polishing brush and polishing device
CN202412665U (en) Machine head of extruding machine
US9044881B2 (en) Manufacturing nanocomposites
JP2010507512A5 (en)
CN208027813U (en) A kind of automatic coating unit producing electric wire
JP3469936B2 (en) Manufacturing method of silicone rubber tube
IL22887A (en) Process and apparatus for the manufacture of reinforced workpieces of synthetic material
EP0330932A2 (en) Method of manufacturing plastics articles reinforced with short fibres
JP4109931B2 (en) Extruder head
US5540873A (en) Process of making plastic bristles
DE2528863A1 (en) REINFORCED PLASTIC HOSE
CN1274261C (en) Imitating bristle brush wire and its making method

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08790058

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08790058

Country of ref document: EP

Kind code of ref document: A1