EP0875299B1 - Ligne de revêtement d'un fil conducteur - Google Patents
Ligne de revêtement d'un fil conducteur Download PDFInfo
- Publication number
- EP0875299B1 EP0875299B1 EP98401065A EP98401065A EP0875299B1 EP 0875299 B1 EP0875299 B1 EP 0875299B1 EP 98401065 A EP98401065 A EP 98401065A EP 98401065 A EP98401065 A EP 98401065A EP 0875299 B1 EP0875299 B1 EP 0875299B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wire
- enamelling
- varnish
- oven
- single chamber
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/28—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity for treating continuous lengths of work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
- B05D3/0272—After-treatment with ovens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/20—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wires
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/001—Drying and oxidising yarns, ribbons or the like
- F26B13/002—Drying coated, e.g. enamelled, varnished, wires
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
- F27B9/10—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by hot air or gas
Definitions
- the present invention relates to an enameling line a conducting wire, comprising a varnish applicator on the wire and an enameling oven through which the wire.
- US-A-5,291,670 discloses an oven for enamelling conductive wires coated with a layer of resin (or varnish) dissolved in solvents.
- This oven has a horizontal and shaped main bedroom elongated, an auxiliary suction and treatment of solvent vapors from the chamber main and a hot air convection system in this one.
- the main chamber of this oven is divided into a solvent evaporation zone of the resin layer on the wires and a polymerization and crosslinking zone of resin. It is equipped with a horizontal row of electrical resistors, which are mounted inside this chamber, and heat exchangers, which define two of the opposite longitudinal walls of said chamber main.
- the auxiliary assembly includes suction means to suck in a stream of air and solvent vapors from the master bedroom, between the two areas thereof. he also includes heating means to process this flow sucked. It is coupled to one end of the exchangers for their hot air supply provided by the flow treaty.
- the hot air convection system has a pipe which couples the other end of the exchangers at one end of the master bedroom. It thus ensures recycling of the treated stream, which is reintroduced into the master bedroom after circulating in the heat exchangers along said chamber.
- the solvent evaporation zone is maintained between 150 and 350 ° C and the polymerization and crosslinking zone of resin between 400 and 550 ° C.
- the flow drawn from this room main is treated at a temperature of around 700 to 750 ° C in the auxiliary assembly.
- Each of the two the master bedroom is kept at the desired temperature by the thermal contribution of electrical resistances interior but also mainly exchangers as well as the convection system.
- This enameling oven makes the most of the exchange thermal between the treated air and solvent flow and the enameled wires. It is however of complex structure and cumbersome.
- Document JP-A-01 11671 discloses a set of baking a layer of resin (or varnish) on a wire metallic, comprising two heating ovens which are mounted one after the other and in which the wire coated with its resin layer.
- the first oven of heating is by air circulation. It ensures evaporation of most solvents in the resin layer on the wire and maintains the crosslinking of the resin to a degree insufficient, with oxidation of the resin and the remaining wire below a certain degree.
- the second heating oven ensures the crosslinking of the resin at high temperature, of the order of 500 ° C. and is provided for an interior atmosphere having a low oxygen content, less than 5%, to make obstacle to the oxidation of the resin and the wire.
- This set glazing requires a vapor treatment unit of solvents from the first heating oven, if you want avoid pollution problems.
- the object of the present invention is to avoid disadvantages of the aforementioned known solutions.
- Its purpose is a line of enameling a conducting wire, comprising at least one assembly comprising an applicator for varnish on the wire and an enameling oven in which scrolls said wire, said oven itself comprising on the one hand at least one elongated chamber with an entrance wire and a wire outlet at its two opposite ends and internally equipped with radiant heating elements opposite the path of the wire between said inlet and said wire outlet, for the evaporation of solvents from said varnish on the wire and / or the firing of the varnish on the wire, and on the other hand means for treating the vapors solvents from the resin on the wire, characterized in what the enameling oven includes a single chamber of which the indoor atmosphere is low in oxygen controlled and less than 6%, to both ensure the evaporation of the solvents and the firing of the said varnish on said wire and constitute said processing means of said solvent vapors by combustion on contact said radiant heating elements in said chamber unique, flameless resulting.
- This single figure is a sectional view of a line enamelling according to the invention.
- This enamelling line includes an applicator varnish 1 and an enameling oven 2 mounted following the applicator and coupled to it, through which the common thread 3 runs horizontally in the realization illustrated.
- the line can be arranged vertically.
- the varnish applicator contains the dissolved varnish in solvents for the deposition of a layer of this varnish on the thread running through the applicator.
- the enameling oven 2 has a single chamber 4 for the evaporation of the solvents from the varnish layer on wire, solvent vapor treatment and baking at high temperature of the varnish on the wire, progressively of the thread running through this room. He is in shape elongated and of uniform rectangular section over its entire length and maintained on a support base 20.
- This oven 2 has an inlet 5 and an outlet 6 for the wire in the room, provided at its opposite ends. It is fitted with radiant heating elements 7, mounted in the chamber 4 opposite the path of the wire therein. As illustrated, these elements are worn and line internally the upper longitudinal wall 8 of the bedroom but can just as easily be on another of the longitudinal walls of this oven. These are resistances electrics advantageously chosen to allow bring room 4 to a temperature of the order or higher than 1000 ° C. Such electrical resistances are as such known, of the type already used especially in the automotive field for cooking painting.
- One of the other longitudinal walls of the oven here its lower wall, preferably consists of a wall double marked 9A and 9B.
- This room 4 has an indoor atmosphere with very low oxygen content, less than 6% and preferably around 3%, which is controlled. She is equipped with a probe 10 for measuring the oxygen content of the interior atmosphere of room 4. An entrance controlled air 11 is slaved to the measurement probe and maintains the oxygen content in the chamber its desired low value.
- the measurement probe 10 is mounted near the wire path 3.
- the controlled air inlet 11 is preference distant from it. It leads into a supply conduit 12 extending along the chamber and opening at its two ends in the parts opposite terminals of entry and exit of the room.
- the controlled air inlet 11 is produced through this bottom wall of the oven, especially in the part central part of it, or between the central part and the entry terminal part or even at party right entry.
- the supply duct 12 is advantageously defined between the two walls 9A and 9B of the lower wall double oven.
- the measurement probe 10 is mounted in the terminal outlet part of the chamber 4.
- a fan 13 is mounted to the right of the entrance controlled air 11 in the supply duct 12, for an air circulation introduced by this entry in a direction and the other towards its ends and in room 4, as illustrated by the opposite arrows 12A and 12B as well than 4A and 4B. It mixes the air flow introduced with the flow of air and vapors present in room 4.
- the probe measurement signal regulates the air flow which is introduced into conduit 12 and so into the chamber 4, so that the oxygen content in chamber 4 is weak but remains sufficient for combustion completely flameless solvent vapors in the bedroom.
- Room 4 is placed in slight depression and is thus sealed to prevent uncontrolled reentry of air other than through controlled input 11.
- Its input 5 is directly hermetically coupled to the applicator varnish 1 and this one is equipped with an extractor hood 15.
- Its outlet 6 is connected to a suction pipe 16.
- One of the ends of this pipe 16 opens onto the periphery with an air supply line 17 to a fan 18 to adjust the suction flow.
- Exit 6 is also externally equipped with a terminal nozzle low pressure outside air intake as well as illustrated by the arrows 19, which is sucked into the suction pipe 16 but provides the required tightness of the outlet 6 around the wire and gas extraction from combustion.
- the extractor hood 15 is equipped with a chimney for evacuating intake air and solvent vapors from the applicator.
- this hood suction is coupled by a discharge pipe 14 to the controlled air inlet 11, for air purification as well then sucked directly into room 4.
- the extractor hood 15 is controlled by the measuring probe, which controls the flow drawn in by the hood and injected through the inlet 11 in the conduit 12 and the chamber 4.
- Solvent vapor treatment is therefore carried out directly in the varnish baking chamber 4 on the wire, thus avoiding any problem of external pollution and any other equipment intended for this purpose.
- the temperature of the room is maintained at 1000 ° C or even higher. She may be uniform over the length of chamber 4. Alternatively, a temperature gradient is created along the chamber, in ascending from entry 5 to exit 6, or preferably going up from the entrance to a part median or near the exit then decreasing from this party at the exit.
- chamber 4 at one very high temperature and much higher than temperatures known solutions can significantly increase the production speed, at equal oven length. This production speed is at least doubled for a operation of chamber 4 at 1000 ° C.
- the enamel line can have multiple sets that are analogous to the assembly constituted by the applicator 1 and the oven 2 associated with each other and are then mounted one after the other on the other or others.
- the oven is built for be able to open halfway and be able to retract by relative to the path of the wire, this allows the start of the line, with the wire out of the oven until it has reaches a sufficient speed to prevent the thread from melts if the chamber is at around 1000 ° C. The oven is then brought back into place on the line and closed on this wire, as soon as the wire speed avoids this problem.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Conductive Materials (AREA)
- Insulated Conductors (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Communication Cables (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Description
- ladite chambre unique comporte une sonde de mesure de la teneur en oxygène de ladite atmosphère intérieure et une entrée d'alimentation d'air asservie à la mesure de ladite sonde.
- ladite chambre unique est en dépression vis-à-vis de l'atmosphère extérieure.
- lesdits éléments chauffants rayonnants sont choisis pour pouvoir porter ladite chambre unique à une température au moins égale à 1000°C.
Claims (15)
- Ligne d'émaillage d'un fil conducteur, comportant au moins un ensemble comprenant un applicateur de vernis sur le fil et un four d'émaillage dans lesquels défile ledit fil, ledit four comportant lui-même d'une part au moins une chambre de forme allongée, munie d'une entrée du fil et d'une sortie du fil à ses deux extrémités opposées et équipée intérieurement d'éléments chauffants rayonnants en regard de la trajectoire du fil entre ladite entrée et ladite sortie de fil, pour l'évaporation de solvants du vernis sur le fil et/ou la cuisson du vernis sur le fil, et d'autre part des moyens de traitement des vapeurs de solvants provenant du vernis sur le fil, caractérisée en ce que le four d'émaillage (2) comprend une chambre unique (4) dont l'atmosphère intérieure est à faible teneur en oxygène contrôlée et inférieure à 6 %, pour à la fois assurer l'évaporation des solvants et la cuisson du vernis sur ledit fil et constituer lesdits moyens de traitement desdites vapeurs de solvants par combustion au contact desdits éléments chauffants rayonnants (7) dans ladite chambre unique, sans flamme en résultant.
- Ligne d'émaillage selon la revendication 1, caractérisée en ce que ladite chambre unique comporte une sonde (10) de mesure de la teneur en oxygène de ladite atmosphère intérieure et une entrée d'alimentation d'air (11) asservie à la mesure de ladite sonde.
- Ligne d'émaillage selon la revendication 2, caractérisée en ce ladite chambre unique (4) est en dépression vis-à-vis de l'atmosphère extérieure.
- Ligne d'émaillage selon la revendication 3, caractérisée en ce que ladite entrée de fil (5) est reliée de façon hermétique à l'applicateur (1) équipé d'un moyen aspirateur associé (15) et en ce que la sortie de fil (6) est reliée à une conduite d'aspiration (16) dont l'une des extrémités débouche sur la périphérie de ladite sortie de fil et l'autre extrémité est reliée avec une conduite d'arrivée d'air (17) à un ventilateur (18).
- Ligne d'émaillage selon la revendication 4, caractérisée en ce que ledit moyen aspirateur (15) associé à l'applicateur de vernis (1) est relié par une conduite d'évacuation (14) à ladite entrée d'alimentation d'air (11) et est contrôlé par ladite sonde de mesure (10).
- Ligne d'émaillage selon l'une des revendications 4 et 5, caractérisée en ce que ladite sortie de fil (6) est équipée extérieurement d'un moyen terminal (19) d'entrée d'air extérieur à faible pression.
- Ligne d'émaillage selon l'une des revendications 1 à 6, caractérisée en ce que lesdits éléments chauffants rayonnants (7) sont montés le long d'une première paroi (8) dudit four (2).
- Ligne d'émaillage selon la revendication 7, caractérisée en ce que lesdits éléments chauffants rayonnants (7) tapissent intérieurement ladite première paroi dudit four (8).
- Ligne d'émaillage selon l'une des revendications 7 et 8, caractérisée en ce ladite entrée d'alimentation d'air (11) est réalisée à travers une deuxième (9A, 9B) des parois du four.
- Ligne d'émaillage selon la revendication 9, caractérisée en ce que ladite deuxième paroi (9A, 9B) est une double paroi comportant un conduit d'alimentation d'air (12) défini entre les deux parois de cette double paroi et ouvert dans les deux parties terminales opposées de ladite chambre unique, et en ce que ladite entrée d'alimentation (11) est réalisée à travers la paroi la plus extérieure (9A) de cette double paroi.
- Ligne d'émaillage selon la revendication 10 caractérisée en ce qu'elle comporte un ventilateur (13) monté dans ledit conduit d'alimentation (12) en regard de ladite entrée d'alimentation d'air (11).
- Ligne d'émaillage selon l'une des revendications 1 à 11, caractérisée en ce que lesdits éléments chauffants rayonnants (7) sont choisis pour pouvoir porter ladite chambre unique à une température au moins égale à 1000°C.
- Ligne d'émaillage selon la revendication 13, caractérisée en ce que lesdits éléments chauffants rayonnants (7) sont choisis pour créer un gradient de température le long de ladite chambre unique.
- Ligne d'émaillage selon la revendication 13, caractérisée en ce que ladite chambre unique (4) est à gradient de température allant croissant de ladite entrée de fil (5) à une partie sensiblement médiane de ladite chambre puis allant décroissant de celle-ci à ladite sortie de fil (6).
- Ligne d'émaillage selon la revendication 12, caractérisée en ce que ledit four est ouvrant en long et escamotable par rapport à la trajectoire du fil sur la ligne.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9705444A FR2762860B1 (fr) | 1997-05-02 | 1997-05-02 | Ligne d'emaillage d'un fil conducteur |
FR9705444 | 1997-05-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0875299A1 EP0875299A1 (fr) | 1998-11-04 |
EP0875299B1 true EP0875299B1 (fr) | 2001-11-14 |
Family
ID=9506536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98401065A Expired - Lifetime EP0875299B1 (fr) | 1997-05-02 | 1998-04-30 | Ligne de revêtement d'un fil conducteur |
Country Status (8)
Country | Link |
---|---|
US (1) | US6186089B1 (fr) |
EP (1) | EP0875299B1 (fr) |
JP (1) | JPH10312719A (fr) |
AT (1) | ATE208660T1 (fr) |
CA (1) | CA2234823C (fr) |
DE (1) | DE69802456T2 (fr) |
ES (1) | ES2163846T3 (fr) |
FR (1) | FR2762860B1 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100404990C (zh) * | 2000-09-24 | 2008-07-23 | 3M创新有限公司 | 蒸气收集方法 |
FR2839084B1 (fr) | 2002-04-26 | 2004-07-16 | Nexans | Dispositif de revetement d'un fil conducteur |
FR2857169B1 (fr) | 2003-07-01 | 2006-02-24 | Cit Alcatel | Procede de fabrication d'elements electriquement conducteurs isoles de collecteur tournant et collecteur tournant comportant ces elements electriquement conducteurs |
DE102005053380B3 (de) * | 2005-11-07 | 2006-11-30 | Aumann Gmbh | Vorrichtung zum Aufbringen eines Isolierlacks auf ein elektrisch leitfähiges Element |
EP1790928A1 (fr) * | 2005-11-25 | 2007-05-30 | Advanced Photonics Technologies AG | Procédé et dispositif de revêtement de bandes |
CN101783214B (zh) * | 2010-03-31 | 2012-05-23 | 李文铎 | 一种使用螺杆挤出法涂覆漆料制造漆包线的装置及方法 |
CN104064291B (zh) * | 2014-07-07 | 2016-09-28 | 珠海松田电工有限公司 | 一种漆包线涂漆装置及涂漆方法 |
TWI688972B (zh) * | 2015-02-18 | 2020-03-21 | 瑞士商美莉佛公司 | 供交聯或硫化細長元件用的方法及設備 |
CN108735398A (zh) * | 2017-04-14 | 2018-11-02 | 深圳市麦克斯泰有限公司 | 一种用于铜或铝漆包线脱漆的设备及其脱漆方法 |
CN108787303A (zh) * | 2018-06-21 | 2018-11-13 | 温州市飞博工程设计有限公司 | 一种实验室用涂料涂膜装置 |
CN114226178B (zh) * | 2021-11-24 | 2023-04-07 | 铜陵市同威科技有限公司 | 一种分体式涂漆扁模 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2517024A (en) * | 1946-06-17 | 1950-08-01 | Anaconda Wire & Cable Co | Enameling oven |
FR1276775A (fr) * | 1960-10-13 | 1961-11-24 | Thomson Houston Comp Francaise | Perfectionnements aux fours à émailler |
JPS6411671A (en) * | 1987-07-01 | 1989-01-17 | Furukawa Electric Co Ltd | Paint baking method |
IT1224032B (it) * | 1988-12-23 | 1990-09-26 | S I C M E Spa Societa Ind Cost | Procedimento per ottenere la cottura di manufatti filiformi rivestiti di resine plastiche isolanti e forno per realizzare il suddetto procedimento |
US5291670A (en) * | 1988-12-23 | 1994-03-08 | S.I.C.M.E. S.P.A. Societa Industriale Costruzioni Microelettriche | Process for baking wire-like products clad in insulating plastics resin, and an oven for performing the said method |
-
1997
- 1997-05-02 FR FR9705444A patent/FR2762860B1/fr not_active Expired - Lifetime
-
1998
- 1998-04-30 ES ES98401065T patent/ES2163846T3/es not_active Expired - Lifetime
- 1998-04-30 AT AT98401065T patent/ATE208660T1/de active
- 1998-04-30 EP EP98401065A patent/EP0875299B1/fr not_active Expired - Lifetime
- 1998-04-30 DE DE69802456T patent/DE69802456T2/de not_active Expired - Lifetime
- 1998-05-01 US US09/070,869 patent/US6186089B1/en not_active Expired - Lifetime
- 1998-05-01 JP JP10122489A patent/JPH10312719A/ja active Pending
- 1998-05-01 CA CA002234823A patent/CA2234823C/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2762860A1 (fr) | 1998-11-06 |
CA2234823C (fr) | 2007-07-17 |
DE69802456D1 (de) | 2001-12-20 |
ATE208660T1 (de) | 2001-11-15 |
FR2762860B1 (fr) | 1999-07-23 |
DE69802456T2 (de) | 2002-07-18 |
ES2163846T3 (es) | 2002-02-01 |
EP0875299A1 (fr) | 1998-11-04 |
CA2234823A1 (fr) | 1998-11-02 |
JPH10312719A (ja) | 1998-11-24 |
US6186089B1 (en) | 2001-02-13 |
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