SE506347C2 - Method and apparatus for bonding substrates to data discs - Google Patents

Method and apparatus for bonding substrates to data discs

Info

Publication number
SE506347C2
SE506347C2 SE9601262A SE9601262A SE506347C2 SE 506347 C2 SE506347 C2 SE 506347C2 SE 9601262 A SE9601262 A SE 9601262A SE 9601262 A SE9601262 A SE 9601262A SE 506347 C2 SE506347 C2 SE 506347C2
Authority
SE
Sweden
Prior art keywords
disc elements
disc
elements
pressure chamber
adhesive
Prior art date
Application number
SE9601262A
Other languages
Swedish (sv)
Other versions
SE9601262L (en
SE9601262D0 (en
Inventor
Ove Oehman
Lars Bering
Original Assignee
Toolex Alpha 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 Toolex Alpha Ab filed Critical Toolex Alpha Ab
Priority to SE9601262A priority Critical patent/SE506347C2/en
Publication of SE9601262D0 publication Critical patent/SE9601262D0/en
Priority to AU25258/97A priority patent/AU2525897A/en
Priority to PCT/SE1997/000559 priority patent/WO1997036738A1/en
Publication of SE9601262L publication Critical patent/SE9601262L/en
Publication of SE506347C2 publication Critical patent/SE506347C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • 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
    • 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
    • B29C65/1429—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
    • B29C65/1435—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 at least passing through one of the parts to be joined, i.e. transmission 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
    • 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
    • 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
    • B29C65/1477—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 an absorber or impact modifier
    • B29C65/1483—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 an absorber or impact modifier coated on the article
    • 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
    • B29C65/1496—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 masks
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/345—Progressively making the joint, e.g. starting from the middle
    • B29C66/3452—Making complete joints by combining partial 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
    • B29C66/40—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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81266—Optical properties, e.g. transparency, reflectivity
    • B29C66/81267—Transparent to electromagnetic radiation, e.g. to visible light
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81455—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being a fluid inflatable bag or bladder, a diaphragm or a vacuum bag for applying isostatic pressure
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0014—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form
    • G11B23/0021—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0888—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using transparant moulds
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0888—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using transparant moulds
    • B29C35/0894—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using transparant moulds provided with masks or diaphragms
    • 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
    • B29C66/71—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 composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0026—Transparent
    • B29K2995/0027—Transparent for light outside the visible spectrum
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Abstract

The invention relates to a method and a device for glueing together disc elements (12). An adhesive (28) is applied between two disc elements (12) and they are pressed together by means of a flexible membrane (20) in a press unit (10). The adhesive layer formed between the disc elements (12) is cured, for example by means of UV light in a press unit via a transparent cover (18) or a transparent bottom plate (14).

Description

3G 506 347 2 b) att det andra skivelementet pålâgges centrerat och sammanfallande över det limbelagda skivelementet, c) att skivelementen sammanpressas i en pressenhet, och d) att ett genom sammanpressningen mellan skivelementen bildat tunt limmedelsskikt härdas. B 50 that the second disc element is applied centered and coincident over the adhesive-coated disc element, c) that the disc elements are compressed in a pressing unit, and d) that a thin adhesive layer formed by the compression between the disc elements is cured.

Genom att utföra en noggrann dosering och applicering av ett lim med lämplig viskositet kan man undvika omständlig hantering av överskottslim, och detta i kombination med lämpligt sammanpressningstryck och härdning förhindrar uppkomst av luftinneslutningar mellan skivelementen.By performing a careful dosing and application of an adhesive of suitable viscosity, cumbersome handling of excess adhesive can be avoided, and this in combination with appropriate compression pressure and curing prevents the formation of air inclusions between the disc elements.

Härdningen av limskiktet kan ske i pressenheten och/eller vid ett ställe utanför denna, exempelvis genom bestrålning av limskiktet med UV-ljus.The curing of the adhesive layer can take place in the press unit and / or at a place outside it, for example by irradiating the adhesive layer with UV light.

Enligt ett särskilt föredraget utförande av förfarandet enligt uppfinningen bestrålas ett radiellt yttre, ringforrnigt kantområde av skivelementen och företrädesvis även ett radiellt inre område av desamma med UV-ljus under skivelementens sammanpressningsfas, varvid limmedlet omedelbart härdar vid de yttre och inre periferiområdena och däri- genom effektivt förhindrar limmedlet att läcka ut från spalten mellan skivelementen.According to a particularly preferred embodiment of the method according to the invention, a radially outer, annular edge area of the disc elements and preferably also a radial inner area thereof are irradiated with UV light during the compression phase of the disc elements, the adhesive curing immediately at the outer and inner peripheral regions and therein. prevents the adhesive from leaking out of the gap between the disc elements.

Föreliggande uppfinning avser även en anordning för sammanlimning av tunna skivele- ment, särskilt substrat till digitala audio-, video- eller dataskivor, såsom CD- eller DVD-skivor, varvid anordningen utmärker sig av att den har ett tryckkammarhus, vilket innefattar dels en bottenplatta för att uppbära ena sidan av skivelementen lagda centrerat och sammanfallande över varandra, dels ett flexibelt tryckmembran, anordnat att kunna anligga mot den andra sidan av skivelementen, dels ett lock, som tillsammans med membranet begränsar en tryckkammare, och dels organ för trycksâttning av tryck- karnmaren med en tryckfluid. Locket alternativt bottenplattan är vid ett lämpligt utförande utformad transparent för att medge UV-bestrålning av limskiktet mellan de sarnmanpressade skivelementen. Denna anordning medger en effektivt samordnad sammanlimning och härdning av skivelementen utan problem med överskottslirn och luftinneslutningar. 506 347 3 Ytterligare särdrag hos anordningen enligt uppfinningen är angivna i de efterföljande osjälvständiga patentkraven.The present invention also relates to a device for gluing thin disc elements, in particular substrates to digital audio, video or data discs, such as CDs or DVD discs, the device being characterized in that it has a pressure chamber housing, which partly comprises a bottom plate. to support one side of the disc elements laid centered and coinciding one above the other, partly a flexible pressure membrane, arranged to be able to abut against the other side of the disc elements, partly a lid, which together with the membrane delimits a pressure chamber, and partly means for pressurizing pressure vessels. karnmaren with a press fl uid. The lid or the base plate is, in a suitable embodiment, designed transparent to allow UV irradiation of the adhesive layer between the compressed disc elements. This device allows an efficiently coordinated gluing and hardening of the board elements without problems with excess wire and air inclusions. Additional features of the device according to the invention are set out in the following dependent claims.

Uppfinningen beskrives nu närmare nedan under hänvisning till bifogade ritning, på vilken: fig. 1 schematiskt visar ett tvärsnitt genom en pressanordning för samman- limning av två skivelement enligt en första utföringsform av uppfinningen, i en fas omedelbart före sammanpressningen; och fig. 2 schematiskt visar en andra utföringsform av anordningen enligt uppfinningen.The invention is now described in more detail below with reference to the accompanying drawing, in which: fi g. 1 schematically shows a cross-section through a pressing device for gluing two disc elements according to a first embodiment of the invention, in a phase immediately before the compression; and fi g. 2 schematically shows a second embodiment of the device according to the invention.

I fig. 1 betecknas generellt med 10 en pressenhet avsedd för sammanlimning av två i verkligheten relativt tunna (0,6 mm tjocka) skivsubstrat 12 av polykarbonat till digitala, s.k. DVD-skivor. Pressenheten 10 innefattar en bottenplatta 14, en tryckkammarvägg 16, ett lock 18 och ett flexibelt tryckmembran 20 infást i väggen 16. Locket 18 och membranet 20 är utformade transparenta för UV-ljus. Mellan locket 18 och membranet begränsas ett tryckrum 22, vilket är utformat att trycksâttas med en tryckfluid, exempelvis tryckluft, via ett inlopp 24.I fi g. 1 is generally denoted by a pressing unit intended for gluing together two in reality relatively thin (0.6 mm thick) sheet substrates 12 of polycarbonate to digital, so-called DVDs. The press unit 10 comprises a bottom plate 14, a pressure chamber wall 16, a lid 18 and an flexible pressure membrane 20 attached to the wall 16. The lid 18 and the membrane 20 are designed transparent to UV light. Between the lid 18 and the diaphragm a pressure space 22 is delimited, which is designed to be pressurized with a pressure fl outside, for instance compressed air, via an inlet 24.

Med pressenheten 10 sammanhör en bländare 26 för UV-ljus, vilken kan vara integrerad med pressenheten 10 eller med en icke visad yttre UV-strålltâlla. Bländaren 26 har till uppgift att utgöra en sköld för önskad avskârmning av i pressenheten 10 infallande UV- ljus vid härdningen av ett limskikt mellan skivsubstraten 12.The pressing unit 10 is associated with a mixer 26 for UV light, which can be integrated with the pressing unit 10 or with an external UV radiation wire (not shown). The purpose of the aperture 26 is to form a shield for the desired shielding of UV light incident on the pressing unit 10 during the curing of an adhesive layer between the disc substrates 12.

Anordning i fig. 1 är avsedd att användas på följande sätt.Device in fi g. 1 is intended to be used in the following manner.

På ovansidan av det undre skivsubstratet 12 pålägges en vâldefinierad mängd limmedel 28, exempelvis ett lim av epoxityp, i ringform, varefter det övre skivsubstratet 12 pålägges centrerat över det undre substratet 12. Denna limappliceringsfas kan utföras antingen i ett separat moment utanför pressenheten 10 eller i densamma. Därefter pålägges locket 18 och inkopplas en yttre, icke visad tryckluftkälla, varvid tryckluften “506 347 4 inmatas i tryckrummet 22 via inloppet 24 för att däri utöva ett lämpligt anpassat tryck på det flexibla membranet 20 i och för önskad sammanpressning av skivsubstraten 12 så att limmedlet 20 pressas ut mot en yttre periferikant 30 av substraten 12 och in mot en inre periferikant 32 eller ett något radiellt utåt från denna kant 32 beläget, icke visat ringspår, såsom normalt förekommer vid CD-skivor. Direkt efter sammanpressningsfasen, då ett likformigt, homogent och från luftinneslutningar fritt limskikt bildats mellan skivsubstra- ten 12, utsättes limskiktet för UV-bestrålning via det transparenta locket 18 och membranet 20, såsom visas med pilarna A i fig. 1, för att därvid härda limskiktet.On the upper side of the lower sheet substrate 12, a selected annealed amount of adhesive 28, for example an epoxy type adhesive, is applied in an annular form, after which the upper sheet substrate 12 is applied centered over the lower substrate 12. This adhesive application phase can be performed either in a separate step outside the press unit 10 or in the same. Thereafter, the cover 18 is applied and an external source of compressed air, not shown, is connected, the compressed air being fed into the compressed space 22 via the inlet 24 to exert a suitably adapted pressure therein on the visible membrane 20 in order to desired compression of the sheet substrates 12 so that the adhesive Is pressed out against an outer peripheral edge 30 of the substrates 12 and into an inner peripheral edge 32 or a ring groove (not shown) radially outwardly from this edge 32, as is normally found with CDs. Immediately after the compression phase, when a uniform, homogeneous and from air inclusions free adhesive layer is formed between the sheet substrates 12, the adhesive layer is exposed to UV radiation via the transparent cover 18 and the membrane 20, as shown by arrows A in fi g. 1, to thereby cure the adhesive layer.

Emellertid är det en fördel att redan under sammanpressningsfasen låta en viss del av det limhärdande UV-ljuset belysa de yttre och inre limskiktsbegrânsande kantområdena 30, 32 hos skivsubstraten 12, så att limskiktet därvid snabbhärdas vid dessa kantområden för att förhindra läckage av limmedlet vid sammanpressningen. Denna kantbestrålning av limskiktet med UV-ljus är visad med pilar B i fig. 1 och kan åstadkommas genom att bländaren 26 avskärmar UV-ljuset A tills kantområdena av limskiktet härdat, varefter blândaren 26 kan öppnas eller avlägsnas för UV-bestrålning av det övriga limskiktet. De sammanlirnmade skivsubstraten 12 kan sedan avlägsnas ur pressenheten 10 och eventu- ellt efterhârdas på annan plats, om så erfordras. Limningsprocessen kan därefter upp- repas.However, it is an advantage to let a certain part of the adhesive-curing UV light illuminate the outer and inner adhesive-layer limiting edge areas 30, 32 of the sheet substrates 12 already during the compression phase, so that the adhesive layer is rapidly cured at these edge areas to prevent leakage of the adhesive during compression. This edge irradiation of the adhesive layer with UV light is shown by arrows B in fi g. 1 and can be achieved by the mixer 26 shielding the UV light A until the edge areas of the adhesive layer have hardened, after which the mixer 26 can be opened or removed for UV irradiation of the rest of the adhesive layer. The joined sheet substrates 12 can then be removed from the press unit 10 and optionally post-cured elsewhere, if required. The gluing process can then be repeated.

I fig. 2 visas ett alternativt utförande av pressenheten 10 enligt uppfinningen. Skillnaden består i princip enbart i att bottenplattan 12 här är transparent och att UV-strålama A, B kommer underifrån, varvid det flexibla membranet 20 kan göras i ett material ogenom- trängligt för UV-ljus, eftersom det ligger på den från UV-källan vända sidan av skivsubstraten 12. Arbetsprincipen i övrigt kan vara identisk med den som beskrivits i samband med fig. 1.I fi g. 2 shows an alternative embodiment of the press unit 10 according to the invention. The difference is in principle only that the bottom plate 12 here is transparent and that the UV rays A, B come from below, whereby the visible membrane 20 can be made of a material impermeable to UV light, since it lies on it from the UV source. turn the side of the disc substrates 12. The working principle in general may be identical to that described in connection with fi g. 1.

Uppfinningen är icke begränsad till de ovan beskrivna utföringsformerna utan kan varieras inom ramen för efterföljande patentkrav. Exempelvis är det inom ramen för uppfinningen möjligt att tack vare den tunna tjockleken hos skivsubstraten 12 i kom- bination med ett lâttflytande, lågvisköst limmedel få detta att i stor utsträclming själv flyta ut och med kapillärkraftens hjälp fylla större delen av utrymmet mellan skivsub- straten, så att enbart ett relativt litet presstryck behöver utövas i pressenheten 10 på skivsubstraten 12 och limmedelet.The invention is not limited to the embodiments described above but can be varied within the scope of the appended claims. For example, within the scope of the invention, it is possible, thanks to the thin thickness of the disk substrates 12 in combination with a light-surface, low-viscosity adhesive, to cause it to surface itself to a large extent and, with the aid of capillary force, fill most of the space between the disk substrates. so that only a relatively small pressing pressure needs to be exerted in the pressing unit 10 on the sheet substrates 12 and the adhesive part.

Claims (9)

5 10 20 25 30 i 5 0 6 3 4 7 5 Patentkrav5 10 20 25 30 i 5 0 6 3 4 7 5 Patent claims 1. Förfarande för sammanlímning av tunna skivelement (12), särskilt substrat till digitala audio-, video- eller dataskivor, såsom CD- eller DVD-skivor, kännetecknat av åtgärderna a) att limmedel (28) appliceras på den ena sidan av ett första skivelement (12), b) att ett andra skivelement (12) pålâgges centrerat och sammanfallande över det limbelagda skivelementet (12), c) att skivelementen (12) sammanpressas i en pressenhet (10), och d) att ett genom sammanpressningen mellan skivelementen (12) bildat tunt limmedelsskiktMethod for gluing thin disc elements (12), in particular substrates to digital audio, video or data discs, such as CDs or DVD discs, characterized by the measures a) that adhesive (28) is applied to one side of a first disc element (12), b) that a second disc element (12) is applied centered and coincident over the adhesive-coated disc element (12), c) that the disc elements (12) are compressed in a pressing unit (10), and d) that a by the compression between the disc elements (12) formed thin adhesive layer 2. För-farande enligt krav 1, kånnetecknat av att limskiktet härdas i pressenheten (10) genom bestrålning av skiktet med UV-ljus.Method according to claim 1, characterized in that the adhesive layer is cured in the pressing unit (10) by irradiating the layer with UV light. 3. Förfarande enligt krav 1 eller 2, kânnetecknat av att ett radiellt yttre, ringformigt kantområde (30) av skivelementen (12) bestrålas med UV-ljus under skivelementens sammanpressningsfas.Method according to claim 1 or 2, characterized in that a radially outer, annular edge area (30) of the disc elements (12) is irradiated with UV light during the compression phase of the disc elements. 4. Förfarande enligt något av kraven 1-3, kännetecknat av att ett radiellt inre område (32) av skivelementen (12) bestrâlas med UV-ljus under skivelementens samman- pressningsfas.Method according to one of Claims 1 to 3, characterized in that a radial inner region (32) of the disc elements (12) is irradiated with UV light during the compression phase of the disc elements. 5. Anordning för sammanlimning av tunna skivelement (12), särskilt substrat till digitala audio-, video- eller dataskivor, såsom CD- eller DVD-skivor, kånnetecknad av ett tryckkammarhus (10), innefattande dels en bottenplatta (14) fór att uppbära ena sidan av skivelementen (12) lagda centrerat och sammanfallande över varandra, dels ett flexibelt tryckmembran (20), anordnat att kunna anligga mot den andra sidan av skivelementen (12), dels ett lock (18), som tillsammans med membranet (26) begränsar en tryckkam- 10 5 Û 6 3 4 7 i , 6 mare (22), och dels organ (24) för trycksâttning av tryckkammaren (22) med en tryck- fluid.Device for gluing thin disc elements (12), in particular substrates for digital audio, video or data discs, such as CDs or DVD discs, characterized by a pressure chamber housing (10), comprising on the one hand a bottom plate (14) for supporting one side of the disc elements (12) laid centered and coinciding one above the other, partly a flexible pressure membrane (20), arranged to be able to abut against the other side of the disc elements (12), partly a lid (18), which together with the membrane (26) limits a pressure chamber 10 5 Û 6 3 4 7 i, 6 mare (22), and on the other hand means (24) for pressurizing the pressure chamber (22) with a pressure fl uid. 6. Anordning enligt krav 5, kännetecknad av att locket (18) alternativt bottenplattan ' (14) är utformad transparent för att medge UV-bestrålning av limskiktet mellan de sammanpressade skivelementen (12).Device according to claim 5, characterized in that the lid (18) or alternatively the bottom plate '(14) is designed transparent to allow UV irradiation of the adhesive layer between the compressed disc elements (12). 7. Anordning enligt krav 6, vid vilken locket (18) år UV-transparent, kännetecknad av att membranet (20) är UV-transparent.Device according to claim 6, in which the lid (18) is UV-transparent, characterized in that the membrane (20) is UV-transparent. 8. Anordning enligt något av kraven 1-6, kännetecknad av att membranet (20) âr infást i en sidovâgg (16) av tryckkammarhuset (10).Device according to one of Claims 1 to 6, characterized in that the diaphragm (20) is fastened to a side wall (16) of the pressure chamber housing (10). 9. Anordning enligt något av kraven 6-8, kännetecknad av att med den sida av tryckkammarhuset (10), som uppvisar ett transparent lock (18) alternativt bottenplatta (14), är samordnat ett bländarorgan (26) för avskârmning av mot skivelementen riktat UV-ljus.Device according to one of Claims 6 to 8, characterized in that a diaphragm means (26) for shielding the plate elements directed towards the disc elements is coordinated with the side of the pressure chamber housing (10) which has a transparent lid (18) or bottom plate (14). UV light.
SE9601262A 1996-04-01 1996-04-01 Method and apparatus for bonding substrates to data discs SE506347C2 (en)

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SE9601262A SE506347C2 (en) 1996-04-01 1996-04-01 Method and apparatus for bonding substrates to data discs
AU25258/97A AU2525897A (en) 1996-04-01 1997-04-01 Method and apparatus for glueing disc elements together
PCT/SE1997/000559 WO1997036738A1 (en) 1996-04-01 1997-04-01 Method and apparatus for glueing disc elements together

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Publication number Priority date Publication date Assignee Title
WO1998054227A2 (en) * 1997-05-27 1998-12-03 Koninklijke Philips Electronics N.V. Device for curing an adhesive between two layers of an information carrier
GB9722736D0 (en) * 1997-10-29 1997-12-24 Ciba Sc Holding Ag Adhesive compositions
US6106657A (en) * 1998-05-19 2000-08-22 First Light Technology, Inc. System and method for dispensing a resin between substrates of a bonded storage disk
US6254809B1 (en) 1998-05-19 2001-07-03 Steag Hamatech, Inc. System and method for curing a resin disposed between a top and bottom substrate with thermal management
US6214412B1 (en) 1998-05-19 2001-04-10 First Light Technologies, Inc. System and method for distributing a resin disposed between a top substrate and a bottom substrate
US6352612B1 (en) 1998-05-19 2002-03-05 Steag Hamatech, Inc. System for forming bonded storage disks with low power light assembly
US6098272A (en) * 1998-05-19 2000-08-08 First Light Technology, Inc. System for maintaining concentricity of a combination of a top and bottom substrate during the assembly of a bonded storage disk
US6103039A (en) * 1997-11-12 2000-08-15 First Light Technology, Inc. System and method for thermally manipulating a combination of a top and bottom substrate before a curing operation
JPH11283279A (en) * 1998-01-30 1999-10-15 Minnesota Mining & Mfg Co <3M> Laminated optical disk, method and device for producing the disk
CN1284908A (en) 1998-02-27 2001-02-21 奥德梅国际有限公司 Method and device for heat treatment of disc
DE10100427A1 (en) * 2001-01-08 2002-07-18 Steag Hamatech Ag Method and device for joining substrates
DE10100426B4 (en) 2001-01-08 2006-04-06 Steag Hamatech Ag Method and device for joining substrates
DE10213273B4 (en) * 2002-03-25 2005-12-29 Steag Hamatech Ag Production of DVD cards and other discs with non-round shapes
DE102008063975A1 (en) * 2008-12-19 2010-07-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for laser beam joining

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AU2525897A (en) 1997-10-22

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