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SE512007C2 - Förfaringssätt för sammanfogning av ett undre substrat med ett övre substrat medelst lim - Google Patents

Förfaringssätt för sammanfogning av ett undre substrat med ett övre substrat medelst lim

Info

Publication number
SE512007C2
SE512007C2 SE9900622A SE9900622A SE512007C2 SE 512007 C2 SE512007 C2 SE 512007C2 SE 9900622 A SE9900622 A SE 9900622A SE 9900622 A SE9900622 A SE 9900622A SE 512007 C2 SE512007 C2 SE 512007C2
Authority
SE
Sweden
Prior art keywords
lower substrate
adhesive
glue
ring
substrate
Prior art date
Application number
SE9900622A
Other languages
English (en)
Other versions
SE9900622L (sv
SE9900622D0 (sv
Inventor
Goeran Ewerloef
Nils Gawell
Carl Langenskioeld
Original Assignee
M2 Engineering Ab
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 M2 Engineering Ab filed Critical M2 Engineering Ab
Priority to SE9900622A priority Critical patent/SE9900622L/sv
Publication of SE9900622D0 publication Critical patent/SE9900622D0/sv
Priority to US09/478,532 priority patent/US6402880B1/en
Priority to GB0000260A priority patent/GB2347262B/en
Publication of SE512007C2 publication Critical patent/SE512007C2/sv
Publication of SE9900622L publication Critical patent/SE9900622L/sv
Priority to HK01100689A priority patent/HK1030086A1/xx

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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1448—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface radiating the edges of the parts to be joined, e.g. for curing a layer of adhesive placed between two flat parts to be joined, e.g. for making CDs or DVDs
    • B29C65/1451—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface radiating the edges of the parts to be joined, e.g. for curing a layer of adhesive placed between two flat parts to be joined, e.g. for making CDs or DVDs radiating the edges of holes or perforations
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1406—Ultraviolet [UV] radiation
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1487—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of light guides
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/4845—Radiation curing adhesives, e.g. UV light curing adhesives
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/324—Avoiding burr formation
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • B29C66/452—Joining of substantially the whole surface of the articles the article having a disc form, e.g. making CDs or DVDs
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1464—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface making use of several radiators
    • B29C65/1467—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface making use of several radiators at the same time, i.e. simultaneous welding
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B29C66/93451—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed by controlling or regulating the rotational speed, i.e. the speed of revolution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2017/00—Carriers for sound or information
    • B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
    • B29L2017/003—Records or discs
    • B29L2017/005—CD''s, DVD''s
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2429/00—Carriers for sound or information
    • B32B2429/02—Records or discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Optical Record Carriers (AREA)

Description

512 007 microbubblor stör avläsningen. Ändamålet med föreliggande uppfinning är att söka eliminera i det föregående nämnda nackdelar och få fram en sammanfogningsmetod som ger jämn limfilm och en limfilm som sträcker sig ända intill substratens centrumhål, och som är helt i avsaknad av luft- bubblor.
REDoGöRELsE Fön UPPF|NN|NGEN Vid det i det föregående beskrivna förfaringssättet vidtages enligt uppfinningen de mo- difikationerna: att en flexibel centrumtapp placeras i det undre substratets oentrumhål med tätning mot centrumhålet; och att tillförseln av den förutbestämda limmängden sker via kolvpumpen, som utmynnar mot den flexibla centrumtappen, samtidigt som paletten med det undre substratet roteras med en hastighet som är synkroniserad med kolvpumpens flöde.
FIGURBESKRIVNING Uppfinningen skall närmare beskrivas i anslutning till bifogade ritning, där schematiskt: Fig 1 visar ett undre substrat och anordningar för tillförsel av lim; Fig 2 visar det undre substratet med tillfört lim och ett övre substrat just vid sammanfog- ningsprocessens början; och Fig 3 visar situationen vid processens slut.
DETA LJBESKRIVNING Det nya förfaringssättet skall beskrivas i samband med sammanfogning och härdning av två st. 0,6 mm DVD-substrat.
Enligt Fig 1 är en ca 15 mm hög flexibel centrumtapp 14 placerad i oentrumhàlet på en roterbar palett 11. Det undre substratet 1 trycks ned på centrumtappen till anliggning mot paletten 11; därvid tätar tappen 14 mot substratets centrumhål. Tillförseln av en förut- bestämd limmängd sker via en till en kolvpump 12 ansluten kanyl 13, som utmynnar mot den flexibla centrumtappen 14; samtidigt roteras paletten11 med det undre substratet 1 med en hastighet som är ca 100 varv per minut och är synkroniserad med kolvpumpens 12 flöde. Kolvpumpen är lämpligen av typ med linjärt flöde, vilket innebär att lim strömmar genom limkanylen med samma flödeshastighet frrån start till stopp, d.v.s. fram till dess att den förutbestämda limmängden dispenserats på substratet. Lämpligen är pumpmotorns varvtal justerbar vid dispenseringen av limmet och hålls sedan konstant.
Palettens rotationshastighet trimmas in så att limflödet startar och stoppar på hela varv.
Limmet kan appliceras medan paletten roterar ett helt varv eller två hela varv o.s.v.Häri- 512 007 a genom fås en iämn limfördelning runt varvet. Limmet bildar då en iämn ring som omsluter centrumtappen i substratets centrum och har en ytterdiameter av t. ex. ca 25 mm. lnnan tillförseln av lim sker kan en stålring tillfälligt placeras på det undre substratett koaxiellt med den flexibla centrumtappen 14, vilken ring roterar med paletten och det stratet. - På grund av limmets ytspänning drages limmet delvis upp Då tappen 14 likt en kil.
Vid sammanfogningen av substraten trycks alltså det övre substratet 2 sakta ned över den flexibla centrumtappen 14 med hjälp av pressarfoten 21, varvid substratet först träf- När det övre substratet kommit i kontakt med lim och det undre substratet formar sig limmet som en växande ring mellan substraten. Detta innebär att limfördelningen mellan substraten blir jämn när dessa pressas samman.
Om den sammansatta skivan skulle vara statiskt uppladdad neutraliseras dess laddningstillstånd genom att limmet fungerar som ledare. l Fig 3 visas situationen vid pressningens slut, då pressarfoten 21 skall förflyttas rakt upp och från den sammansatta skivan.
Efter sammanpressningen härdas limmet runt omkring centrumtappen 14 med hjälp av UV-ljus från en central UV-lampa genom ett antal Ijusledare monterade i en ringformig hållare runt tappen 14. Denna centrumhârdning möjliggör att limmet kan appliceras så 512 007 4 att det täcker hela ytan mellan substraten ända intill centrumhålet utan att limmet läcker ut i oentrum.Vidare kan den sammansatta skivan hanteras utan att substrten glider i för- hållnde till varandra under transporten till sluthärdning. Centrumhålets ytfinish förbättras genom att centrumtappen fungerar som en gjutform för bondningsmaterialet, som då fyl- ler ut de ojämnheter som uppkommit vid stansningen av substratens oentrumhål. Skivan blir även starkare runt centrumhålet.
Efter centrumhärdningen och centrifugeringen drages den flexibla centrumtappen ur ski- van, varefter skivan sluthärdas under rotation i en UV-tork.

Claims (4)

512 007 PATENTKRÅV
1. Förfaringsssätt för sammanfogning av skivelement till DVD-skivor genom att sam- manfoga ett undre substrat (1) med ett övre substrat (2) medelst lim (10), omfattnde stegen: a. det undre substratet (1) placeras på en roterbar palett (11); b. medelst en kolvpump (12) med linjärt flöde tillföres en förutbestämd mängd lim (10) på det undre substratet samtidigt som paletten med det undre subtratet roterar, varigenom bildas en limring på det undre subtratet (1); c. därefter pressas det övre subtratet (2) sakta ned mot limringen (10), varvid limmet sprids mellan substraten dels genom pressverkan och dels genom kapillârverkan; känneteckn t därav, att en flexibel centrumtapp (14) placeras i det undre substratets (1) centrumhål (15) med tätning mot centrumhálet (15); och att tillförseln av den förutbestämda limmängden (10) sker via kolvpumpen, som utmyn- nar mot den flexibla centrumtappen (14), samtidigt som paletten (11) med det undre substratet (1) roteras med en hastighet som är synkroniserad med kolvpumpens flöde.
2. Fórfaringssätt enligt patentkravet 1, kännetecknat därav, att, innan tillförseln av lim (10) sker, placeras en stålring på det undre substratet (1) koaxiellt med den flexibla centrumtappen (14), vilken ring roterar med paletten och det undre substratet när den förutbestämda limmängden tillföres mot den flexibla cen- trumtappen (14). '
3. Förfaringssätt enligt något av patentkraven 1 - 2, kännetecknatdärav, _ att, efter det att en limring (10) bildats på det undre substratet (1), placeras det övre sub- stratet (2) och en cirkulär pressarfot (21) koaxiellt med det undre substratet (1 ); och att pressarfoten (21) förflyttas med relativt hög hastighet lodrätt rakt ned mot det övre substratet (2) tills det övre substratet får kontakt med den underliggande limringen (10), och därefter med relativt låg hstighet under limmets (10) spridning mellan de två sub- straten genom pressverkan och kapillärverkan. 512 007 6
4. Förfaringssätt enligt något av patentkraven 1-3, kànnetecknat därav, att limmet (10) närmast runt omkring centrumtappen (14) härdas med hjälp av UV-ljus från en central UV-lampa genom ett antal ljusledare monterade i rlngformlg hållare runt centrumtappen (14)
SE9900622A 1999-02-22 1999-02-22 Förfaringssätt för sammanfogning av ett undre substrat med ett övre substrat medelst lim SE9900622L (sv)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE9900622A SE9900622L (sv) 1999-02-22 1999-02-22 Förfaringssätt för sammanfogning av ett undre substrat med ett övre substrat medelst lim
US09/478,532 US6402880B1 (en) 1999-02-22 2000-01-06 Method of gluing together first and second disc elements in the manufacture of a DVD
GB0000260A GB2347262B (en) 1999-02-22 2000-01-07 A method of gluing together first and second disc elements in the manufacture of a DVD
HK01100689A HK1030086A1 (en) 1999-02-22 2001-01-31 A method of gluing together first and second disc elements in the manufacture of a dvd

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9900622A SE9900622L (sv) 1999-02-22 1999-02-22 Förfaringssätt för sammanfogning av ett undre substrat med ett övre substrat medelst lim

Publications (3)

Publication Number Publication Date
SE9900622D0 SE9900622D0 (sv) 1999-02-22
SE512007C2 true SE512007C2 (sv) 2000-01-10
SE9900622L SE9900622L (sv) 2000-01-10

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SE9900622A SE9900622L (sv) 1999-02-22 1999-02-22 Förfaringssätt för sammanfogning av ett undre substrat med ett övre substrat medelst lim

Country Status (4)

Country Link
US (1) US6402880B1 (sv)
GB (1) GB2347262B (sv)
HK (1) HK1030086A1 (sv)
SE (1) SE9900622L (sv)

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CA2299255A1 (en) * 1997-08-06 1999-02-18 Krauss-Maffei Kunststofftechnik Gmbh Method and apparatus for bonding two halves of a dvd (digital versatile disc)
NL1017267C2 (nl) * 2000-07-14 2002-01-18 Otb Group Bv Werkwijze en inrichting voor het vervaardigen van een DVD-schijf.
JP3559535B2 (ja) * 2001-05-16 2004-09-02 北野エンジニアリング株式会社 光ディスク接着剤硬化装置
EP1343157B1 (en) * 2002-03-07 2007-05-23 FUJIFILM Corporation Optical recording medium
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GB2347262A (en) 2000-08-30
US6402880B1 (en) 2002-06-11
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HK1030086A1 (en) 2001-04-20
GB2347262B (en) 2003-05-07

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