DK151130B - PROCEDURE FOR EQUAL COATING OF AN ELEGANT ARTICLE SURFACE ARTICLE WITH AN INORGANIC POWDER - Google Patents
PROCEDURE FOR EQUAL COATING OF AN ELEGANT ARTICLE SURFACE ARTICLE WITH AN INORGANIC POWDER Download PDFInfo
- Publication number
- DK151130B DK151130B DK163374AA DK163374A DK151130B DK 151130 B DK151130 B DK 151130B DK 163374A A DK163374A A DK 163374AA DK 163374 A DK163374 A DK 163374A DK 151130 B DK151130 B DK 151130B
- Authority
- DK
- Denmark
- Prior art keywords
- container
- article
- powder
- elongated
- coating
- Prior art date
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0026—Apparatus for manufacturing conducting or semi-conducting layers, e.g. deposition of metal
Description
151130151130
Opfindelsen vedrører en fremgangsmåde til frembringelse af en jævn beklædning af et uorganisk materiale i pulverform på en langstrakt, i sin længderetning bevæget genstand med ensartet tværsnit, hvilken 5 genstand består af eller har en ydre beklædning af en kunstharpiks, der kan blødgøres ved tilførsel af varme, hvorhos det pulverformede materiale opvarmes til over blødgøringstemperaturen for nævnte kunstharpiks og derefter bringes i kontakt med genstanden, 10 hvorved det blødgør overfladen af kunstharpiksen og trænger ind i denne som følge af det pulverformede materiales bevægelsesenergi.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a method for producing a uniform coating of an inorganic powdered material on an elongate, longitudinally moving article of uniform cross-section comprising an outer covering of an artificial resin which can be softened by the application of heat. wherein the powdered material is heated above the softening temperature of said artificial resin and then contacted with the article, thereby softening the surface of the artificial resin and penetrating it as a result of the moving energy of the powdered material.
Der kendes fremgangsmåder til beklædning af genstande af kunstharpiks med uorganisk pulver. Pulveret 15 kan for eksempel opvarmes og sprøjtes på den genstand, der skal beklædes, ved hjælp af komprimeret luft.Methods are known for coating articles of synthetic resin with inorganic powder. For example, the powder 15 may be heated and sprayed onto the article to be coated by compressed air.
En sådan fremgangsmåde er egnet til beklædning af hovedsagelig flade emner. Til at beklæde en langstrakt genstand, som f.eks. et elektrisk kabel, jævnt, kræves 20 der imidlertid adskillige sprøjteaggregater. Desuden er det tidskrævende at genvinde og genanvende overskydende pulver, medens det er vanskeligt i tilstrækkelig grad at blødgøre kunstharpiksen på den genstand, der skal beklædes med pulver.Such a method is suitable for covering mainly flat items. To cover an elongated object, such as However, an electric cable, evenly, requires several syringe assemblies. In addition, it is time-consuming to recover and reuse excess powder, while it is difficult to sufficiently soften the artificial resin on the article to be coated with powder.
25 Det er hensigten med opfindelsen at undgå de kendte fremgangsmåders ulemper, og hertil angiver den en fremgangsmåde, der er ejendommelig ved, at pulveret opvarmes i en beholder og sættes i bevægelse ved mekanisk vibrering af denne, medens den langstrakte 30 genstand bevæges gennem beholderen.It is an object of the invention to avoid the drawbacks of the known methods, and for this it discloses a method which is characterized by heating the powder in a container and moving it by mechanical vibration thereof, while the elongated object is moved through the container.
Herved opnås, at det til en temperatur over blødgøringspunktet for kunstharpiksen opvarmede uorganiske pulverformige materiales enkelte partikler ved anslag mod kunstharpiksoverfladen blødgør og 35 gennemtrænger denne på grund af sin kinetiske energi og derved indlejres og fastholdes i kunstharpiksoverfladen.Hereby, the individual particles heated by the impact resin surface softened to a temperature above the plasticization resin of the artificial resin soften and penetrate it due to its kinetic energy, thereby embedding and retaining in the resin surface.
151130 2151130 2
Opvarmningen af pulveret og den mekaniske bevægelse heraf ved vibrering af den opvarmede beholder bevirker således en jævn beklædning af den langstrakte genstand, medens den bevæger sig gennem beholderen med 5 pulveret.Thus, the heating of the powder and its mechanical movement by vibration of the heated container causes a uniform coating of the elongated article as it moves through the container with the powder.
I en særlig hensigtsmæssig udførelse er fremgangsmåden ifølge opfindelsen ejendommelig ved, at der anvendes en beholder med åbninger i for- og bagvæggene, hvorigennem den langstrakte genstand bevæges, 10 idet beholderen har et sådant tværsnit på tværs af den langstrakte genstands bevægelsesretning, at det varme pulver gives en cirkulær bevægelse og derved påføres jævnt på overfladen af den langstrakte genstand.In a particularly convenient embodiment, the method according to the invention is characterized in that a container with apertures is used in the front and rear walls through which the elongated article is moved, the container having such a cross-section across the direction of movement of the elongated article that the hot powder is given a circular motion and is evenly applied to the surface of the elongated object.
Der kan da med fordel ifølge opfindelsen anvendes 15 en beholder med i hvert fald delvis cirkulær tværsnitsform.Advantageously according to the invention, a container of at least partially circular cross-sectional shape can then be used.
Opfindelsen beskrives nærmere i det følgende under henvisning til tegningen, på hvilken fig. T viser et længdesnit gennem et apparat 20 egnet til udførelse af fremgangsmåden ifølge opfindelsen, og fig. 2 et tværsnit efter linien II-II i fig. 1.The invention will now be described in more detail with reference to the drawing, in which: FIG. T shows a longitudinal section through an apparatus 20 suitable for carrying out the method according to the invention, and Figs. 2 is a sectional view taken along line II-II of FIG. First
Apparatet består af to elastisk lejrede stive beholdere 1 og 2, der er forbundet med et bøjeligt rør 25 3. I for- og bagvæggene af begge beholdere findes der åbninger, henholdsvis 5, 6 og 7, 8, som ligger på linie med hinanden. Det indre tværsnit af forbindelsesrøret 3 er større end tværsnittet af en langstrakt genstand 4, f.eks. et elektrisk kabel, der er stramt ud-30 spændt og bevæges gennem beholderne 1 og 2 i pilens retning. Åbningen 5 i beholderen 1 har påmonteret et rør 5a med en filtpakning, der sikrer, at pulver ikke kan forlade beholderen 1 gennem åbningen.The apparatus consists of two elastically mounted rigid containers 1 and 2, which are connected to a flexible pipe 25 3. In the front and back walls of both containers there are openings 5, 6 and 7, 8 which are aligned with each other. The inner cross-section of the connecting pipe 3 is larger than the cross-section of an elongated article 4, e.g. an electrical cable which is tightly tensioned and moved through the containers 1 and 2 in the direction of the arrow. The opening 5 of the container 1 has a tube 5a fitted with a felt gasket which ensures that powder cannot leave the container 1 through the opening.
Beholderen 1 opvarmes af brændere 10 og in-35 deholder det uorganiske pulver 9. Beholderen 1 vibreres i lodret retning af en skematisk vist vibra- 151130 3 tor 11. På grund af beholderen 1's hovedsageligt cirkulære tværsnitsform forårsager dens vibration, at pulveret 9 cirkulerer opad langs væggene og nedad igen tilnærmelsesvis i midten som vist med pile i fig.The container 1 is heated by burners 10 and contains the inorganic powder 9. The container 1 is vibrated vertically by a diagrammatically shown vibrator 11. Due to the substantially circular cross-sectional shape of the container 1, its vibration causes the powder 9 to circulate upwards. along the walls and downwards again approximately in the middle as shown by arrows in FIG.
5 2. På denne måde påvirkes den langstrakte genstand 4's overflade i hovedsagen jævnt af pulverkornene. Ved opvarmning af beholderen 1 opvarmes pulveret 9 på en sådan måde, at dets temperatur er over blødgøringstemperaturen for kunstharpiksen på den langstrakte gen-10 stand 4, der skal beklædes. Som følge heraf blødgøres dennes overflade, og pulverets korn trænger på grund af deres kinetiske energi ind i den ydre overflade af kunstharpiks og danner en tynd beklædning på denne.2. In this way, the surface of the elongated object 4 is substantially evenly affected by the powder grains. Upon heating the container 1, the powder 9 is heated in such a way that its temperature is above the plasticization resin temperature of the elongated article 4 to be coated. As a result, its surface is softened and the grain of the powder, due to their kinetic energy, penetrates into the outer surface of synthetic resin and forms a thin coating on it.
Når et kabel 4 bevæges gennem beholderen 1 15 og den rørformede forbindelse 3, vil der klæbe overskudspulver 9 til ydersiden, og det vil føres videre til beholderen 2. Denne beholder 2 hindrer pulveret 9 i at flyde ud af apparatet. Til undersiden af beholderen 2 er der stift forbundet en metalplade 20 13, der danner en vinkel hermed og er påvirket af en vibrator 12 i pladens plan. Pulveret 9 i beholderen 2 bevæger sig derfor imod bevægelsesretningen for genstanden 4, der skal beklædes, og indstiller sig med en skrå overflade 14. Det overflødige pulver, 25 der klæber til den beklædte genstand, løsnes af vibratoren 12, og dette pulver føres tilbage til beholderen 1. Det førstnævnte opnås ved bevægelsen af pulveret 9 i beholderen 2, hvilken bevægelse tilvejebringes ved vibrering af denne beholder. Pulveret 9 føres tilba-30 ge til beholderen 1 ved hjælp af et overløb 15 med udløb over beholderen 1.As a cable 4 moves through the container 1 15 and the tubular connection 3, excess powder 9 will adhere to the outside and it will be passed on to container 2. This container 2 prevents powder 9 from flowing out of the apparatus. To the underside of the container 2 a metal plate 20 13 is rigidly connected which forms an angle thereto and is influenced by a vibrator 12 in the plane of the plate. The powder 9 in the container 2 therefore moves against the direction of movement of the article 4 to be coated and aligns with an inclined surface 14. The excess powder 25 adhering to the coated article is released by the vibrator 12 and this powder is returned to container 1. The former is obtained by the movement of the powder 9 in the container 2, which movement is obtained by vibrating this container. The powder 9 is fed back to the container 1 by means of an overflow 15 with an outlet over the container 1.
I det følgende anføres eksempler på brug af fremgangsmåden, f.eks. i kabelindustrien.The following are examples of use of the method, e.g. in the cable industry.
Med et metalpulver, f.eks. kobberpulver, kan man 35 opnå en ubrudt ledende beklædning på f.eks. kabelisolering af polyethylen eller som en ydre leder ellerWith a metal powder, e.g. copper powder, an unbroken conductive coating of e.g. polyethylene cable insulation or as an outer conductor or
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7304256.A NL157137B (en) | 1973-03-27 | 1973-03-27 | METHOD AND APPARATUS FOR COATING A LONG-THROUGH ARTICLE EQUIVALENTLY WITH POWDER-MATERIAL, AT LEAST WHERE THE OUTER COAT consists of heat-fusible plastic. |
| NL7304256 | 1973-03-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK151130B true DK151130B (en) | 1987-11-09 |
| DK151130C DK151130C (en) | 1988-06-27 |
Family
ID=19818516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK163374A DK151130C (en) | 1973-03-27 | 1974-03-25 | PROCEDURE FOR EQUAL COATING OF AN ELEGANT ARTICLE SURFACE ARTICLE WITH AN INORGANIC POWDER |
Country Status (16)
| Country | Link |
|---|---|
| JP (2) | JPS5026863A (en) |
| BE (1) | BE812800A (en) |
| BR (1) | BR7402425D0 (en) |
| CA (1) | CA1049339A (en) |
| CH (1) | CH586573A5 (en) |
| DE (1) | DE2413789C3 (en) |
| DK (1) | DK151130C (en) |
| FI (1) | FI59935C (en) |
| FR (1) | FR2223156B1 (en) |
| GB (1) | GB1458311A (en) |
| IT (1) | IT1011634B (en) |
| NL (1) | NL157137B (en) |
| NO (1) | NO142202C (en) |
| SE (1) | SE404660B (en) |
| TR (1) | TR18320A (en) |
| ZA (1) | ZA741804B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7313629A (en) * | 1973-10-04 | 1975-04-08 | Nkf Kabel Bv | ELECTRIC HIGH VOLTAGE CABLE. |
| DE2706475C2 (en) * | 1977-02-16 | 1982-12-30 | kabelmetal electro GmbH, 3000 Hannover | Method and device for continuously coating the insulation of electrical cables |
| US4252579A (en) * | 1979-05-07 | 1981-02-24 | International Business Machines Corporation | Method for making single electrode U-MOSFET random access memory utilizing reactive ion etching and polycrystalline deposition |
| JPS5914846B2 (en) * | 1979-05-25 | 1984-04-06 | 住友電気工業株式会社 | Cable corrosion-resistant layer surface conductive layer forming method and forming device |
| DE3031889C2 (en) * | 1980-08-23 | 1986-02-20 | Felten & Guilleaume Energietechnik GmbH, 5000 Köln | Graphitizing device for the conductive layers of electrical cables |
| DE3205960C2 (en) * | 1982-02-19 | 1984-06-28 | kabelmetal electro GmbH, 3000 Hannover | Device for applying closed layers or applying layers of wire or tape to electrical cables and wires |
| CN101777404B (en) * | 2009-12-07 | 2012-03-28 | 浙江万马电缆股份有限公司 | Novel rubber wire powder sieving machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE853998C (en) * | 1950-10-20 | 1952-10-30 | Hoechst Ag | Method and device for the production of coatings on workpieces, pipes or the like. |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1152920B (en) * | 1952-09-18 | 1963-08-14 | Licentia Gmbh | Process for covering objects in an electric field |
| GB860648A (en) * | 1958-03-21 | 1961-02-08 | Standard Telephones Cables Ltd | Improvements in or relating to power cables |
| JPS4220316Y1 (en) * | 1965-05-28 | 1967-11-25 | ||
| US3619231A (en) * | 1965-10-15 | 1971-11-09 | Anchor Post Prod | Continuous metal coating process with fusible pulverulent materials |
| DE2131534C3 (en) * | 1971-06-22 | 1975-04-30 | Aeg-Telefunken Kabelwerke Ag Rheydt, 4070 Rheydt | Device for coating an elongated product with a powdery one! material |
-
1973
- 1973-03-27 NL NL7304256.A patent/NL157137B/en not_active IP Right Cessation
-
1974
- 1974-03-19 ZA ZA00741804A patent/ZA741804B/en unknown
- 1974-03-21 GB GB1259074A patent/GB1458311A/en not_active Expired
- 1974-03-22 FI FI883/74A patent/FI59935C/en active
- 1974-03-22 DE DE2413789A patent/DE2413789C3/en not_active Expired
- 1974-03-22 CH CH405674A patent/CH586573A5/xx not_active IP Right Cessation
- 1974-03-25 NO NO741066A patent/NO142202C/en unknown
- 1974-03-25 SE SE7403980A patent/SE404660B/en not_active IP Right Cessation
- 1974-03-25 DK DK163374A patent/DK151130C/en not_active IP Right Cessation
- 1974-03-25 BE BE142430A patent/BE812800A/en not_active IP Right Cessation
- 1974-03-25 JP JP49033390A patent/JPS5026863A/ja active Pending
- 1974-03-26 IT IT67963/74A patent/IT1011634B/en active
- 1974-03-26 CA CA196,050A patent/CA1049339A/en not_active Expired
- 1974-03-27 BR BR2425/74A patent/BR7402425D0/en unknown
- 1974-03-27 TR TR18320A patent/TR18320A/en unknown
- 1974-03-27 FR FR7410548A patent/FR2223156B1/fr not_active Expired
-
1978
- 1978-02-04 JP JP1978012180U patent/JPS53119462U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE853998C (en) * | 1950-10-20 | 1952-10-30 | Hoechst Ag | Method and device for the production of coatings on workpieces, pipes or the like. |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2413789B2 (en) | 1978-09-28 |
| IT1011634B (en) | 1977-02-10 |
| NL7304256A (en) | 1974-10-01 |
| FI59935C (en) | 1981-11-10 |
| JPS53119462U (en) | 1978-09-22 |
| BR7402425D0 (en) | 1974-11-19 |
| NO741066L (en) | 1974-09-30 |
| BE812800A (en) | 1974-09-25 |
| FR2223156A1 (en) | 1974-10-25 |
| DK151130C (en) | 1988-06-27 |
| TR18320A (en) | 1977-01-06 |
| NO142202B (en) | 1980-04-08 |
| FI59935B (en) | 1981-07-31 |
| CA1049339A (en) | 1979-02-27 |
| SE404660B (en) | 1978-10-23 |
| JPS5026863A (en) | 1975-03-19 |
| GB1458311A (en) | 1976-12-15 |
| DE2413789A1 (en) | 1974-10-10 |
| FR2223156B1 (en) | 1980-01-25 |
| NL157137B (en) | 1978-06-15 |
| NO142202C (en) | 1980-07-16 |
| ZA741804B (en) | 1975-11-26 |
| CH586573A5 (en) | 1977-04-15 |
| DE2413789C3 (en) | 1984-01-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |