WO2001085828A1 - Verfahren und anordnung zur demontage einer geklebten verbundstruktur - Google Patents
Verfahren und anordnung zur demontage einer geklebten verbundstruktur Download PDFInfo
- Publication number
- WO2001085828A1 WO2001085828A1 PCT/EP2001/005360 EP0105360W WO0185828A1 WO 2001085828 A1 WO2001085828 A1 WO 2001085828A1 EP 0105360 W EP0105360 W EP 0105360W WO 0185828 A1 WO0185828 A1 WO 0185828A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- adhesive
- radiation
- adhesive layer
- aggregate
- arrangement according
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 title claims abstract description 10
- 239000000853 adhesive Substances 0.000 claims abstract description 83
- 230000001070 adhesive effect Effects 0.000 claims abstract description 83
- 239000012790 adhesive layer Substances 0.000 claims abstract description 30
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 9
- 230000005855 radiation Effects 0.000 claims description 47
- 239000002184 metal Substances 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000005670 electromagnetic radiation Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000003595 spectral effect Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims 4
- 238000005979 thermal decomposition reaction Methods 0.000 claims 2
- 230000001678 irradiating effect Effects 0.000 claims 1
- 230000000750 progressive effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 3
- 238000000295 emission spectrum Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 206010011906 Death Diseases 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004822 Hot adhesive Substances 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- 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
- B32B43/00—Operations specially adapted for layered products and not otherwise provided for, e.g. repairing; Apparatus therefor
- B32B43/006—Delaminating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
-
- 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
- B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
-
- 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
- B32B2310/00—Treatment by energy or chemical effects
- B32B2310/08—Treatment by energy or chemical effects by wave energy or particle radiation
- B32B2310/0806—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation
- B32B2310/0825—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation using IR radiation
-
- 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
-
- 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
Definitions
- the invention relates to a method for dismantling a bonded composite structure according to the preamble of claim 1 and an arrangement suitable for carrying it out.
- Adhesive technologies are problematic with regard to environmental protection requirements.
- the segregated separation of recyclable materials tends to become an increasingly important aspect of the environmentally friendly disposal of high-quality industrial products.
- the regulations for handling scrapped motor vehicles (EU end-of-life vehicle directive), which will become effective in the near future, require that firmly connected parts from different parts Materials have to be separated from each other as part of the disposal process.
- Various solutions for dismantling bonded composite structures are known, of which the most widespread are those methods in which the adhesive connection is broken open essentially by the action of mechanical force or by mechanical tools. For this - in accordance with the high final strength of such connections required in the intended use - a considerable energy requirement and / or the use of high-quality tools which are nevertheless subject to high wear is required.
- these processes are themselves not very environmentally friendly in that they are associated with considerable noise emissions.
- the invention is therefore based on the object of specifying an uncomplicated, inexpensive method of the generic type which can be easily adapted to different application situations, and an arrangement suitable for this purpose.
- the invention includes the basic idea of generating a temperature in the interior of an adhesive layer or an adhesive aggregate that is sufficient to decompose the adhesive without the aid of a hot wire (or other tool).
- the invention further includes the idea of using high-energy electromagnetic radiation for which the adhesives used are equally transparent so that the radiation can penetrate well into the interior of the adhesive. According to the inventors' investigations, this applies in particular to radiation in the near infrared (NIR) range, that is to say with a wavelength between 0.8 and 1.5 ⁇ m.
- NIR near infrared
- a preferred variant of the process control is that practically the entire adhesive volume of an adhesive compound is heated by the radiation above the decomposition temperature and is held there until the originally connected parts separate from one another.
- the dinatured adhesive can fall off the parts in the form of granules or powder, or in any case can be removed with little post-processing.
- the parts can be separated from one another after decomposition of the adhesive layer mentioned, but adhesive residues remain on at least one part.
- the irradiation can advantageously be carried out under essentially simultaneous action of a force which tends to separate the connected parts from one another, in particular a tensile or shear force.
- a force which tends to separate the connected parts from one another in particular a tensile or shear force.
- the proposed arrangement comprises fixing means for clamping the parts connected by the adhesive connection and a drive device which applies the aforementioned tensile or shear force between them.
- a power density in the range between 100 and 1000 kW / m 2 , in particular between 200 and 500 kW / m 2 is preferably used. If the adjacent areas of the parts to be joined are metal surfaces, then the use of a higher power density is in the range between 500 kW / m 2 and 2 MW / m 2 , in particular between 1 MW / m 2 and 1.5 MW / m 2 , to prefer.
- the proposed arrangement preferably has a power control unit for setting the suitable power density.
- distance setting means are preferably provided for varying the distance between the adhesive areas and the radiation source, as a result of which the effective power density in the adhesive is also controlled.
- the duration of the irradiation is in the range between 1 and 60 s, in particular between 2 and 20 s. These values apply to adhesive layer thicknesses in the range between 2 and 10 mm or localized adhesive aggregates up to approx. 10 mm in diameter or edge length.
- the proposed arrangement preferably has a controllable drive for moving the group of parts to be separated with respect to the radiation source at a predetermined speed and / or a radiator time control for switching off the radiator after a predetermined irradiation time.
- halogen lamps are used in a particularly simple and cost-effective manner, which are operated in order to set the desired radiation spectrum, in particular at an increased operating temperature.
- surface or line or point emitters or a combination of these are used.
- a total radiation geometry adapted to the geometry of the parts to be dismantled and the adhesive layer or aggregate is designed and implemented for a specific application.
- the spectral composition of the radiation corresponds (as already mentioned above) to the intended use in an advantageous manner, but it is in particular due to a change in the operating temperature of the halogen lamp (s) to the specific absorption properties of the adhesive used - and optionally also to the absorption properties of an adhesive, if appropriate partially penetrated by the radiation adjacent part - adjustable.
- the goal here is to achieve an essentially uniform warming of the adhesive layer or the adhesive aggregate in the shortest possible time.
- Corresponding setting means of a preferred embodiment of the proposed arrangement allow in particular an adjustment of the radiator temperature (preferably of 2900 K or more, in particular of more than 3200 K) by varying the applied operating voltage.
- the irradiation device is tracked, in particular in a coordinate-controlled manner, along the course of the adhesive track or, conversely, the controlled combination of the first and second parts is guided along the irradiation device in a controlled manner.
- a corresponding implementation of the proposed arrangement comprises the transport device (already mentioned above) for effecting a relative movement between the component assembly and the radiation device or the radiation field generated by the latter, for example a coordinate control for precise displacement and / or pivoting of the radiation device the course of the adhesive track or the arrangement of adhesive points.
- the thermal efficiency of the method can be increased and the treatment time can thus be shortened again by preheating at least one of the parts to be separated in the area adjacent to the adhesive application and thus reducing the heat outflow during the NIR irradiation.
- the proposed arrangement thus preferably has a corresponding preheating device for at least one of the parts connected to one another (in the case of a metal-plastic composite, in particular for the metal part).
- a process control is furthermore advantageous in which a reflection of part of the NIR radiation results from a metallic surface adjacent to the adhesive layer and for enlargement the radiation density within the adhesive is used.
- laterally irradiated NIR radiation at a suitable angle of incidence can be transported relatively far into the space between the two parts and the adhesive layer located there by multiple reflections, so that denaturation of the adhesive is by no means only in the outermost edge region , but can also be reached at a considerable distance from it.
- a correspondingly designed arrangement is characterized by such a positioning of the radiation source and / or of a focusing means (reflector) assigned to it that the angle of incidence can be adjusted to achieve the desired multiple reflections.
- this embodiment is expediently provided with means for changing the angle of incidence depending on the shape of the part edges and the adhesive track.
- a corresponding embodiment of the arrangement comprises an NIR irradiation device positioned on the other side of the (plastic) part to be irradiated.
- a focusing device belonging to this can in particular be designed such that the maximum focusing effect - i. H. the maximum power density - not in this part, but precisely only in the adhesive areas.
- a practically relevant application is the dismantling of a motor vehicle windshield based on NIR radiation.
- the above-mentioned application is also present here, in which a trace of an adhesive can be scanned to gradually destroy it.
- a suitably shaped radiator configuration (primarily line radiators) can be used in a static manner in this application. If the arrangement is carried out using line emitters which are arranged in accordance with the course of the adhesive track on the edge of the windshield (and preferably have adapted reflector sections for line focusing of the radiation), a very high productivity can be achieved, but such an arrangement can only be used to a limited extent flexibly for dismantling different types of vehicles.
- a more universal arrangement is a spotlight (s) with a coordinate control for scanning the adhesive track with the spotlight or spots, in which the specific data of a particular vehicle type can be programmed into the control. However, the process time is somewhat longer with such an arrangement.
- the radiation power of the radiation device is expediently adjusted by varying the distance between the radiation source and the adhesive layer or the adhesive aggregate.
- adjustment is also possible by changing the operating voltage and temperature of the halogen lamps that are preferably used.
- this also changes the emission spectrum - which can be undesirable in view of the advantageous adaptation to the absorption properties of the adhesive.
- Adhesive systems are known and commercially available systems of the thermally crosslinking type, in particular based on PU or epoxy. At the same time, the development of systems that are specifically tailored to the emission spectra of the halogen lamps that are preferably used as radiation sources can be useful.
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001262278A AU2001262278A1 (en) | 2000-05-10 | 2001-05-10 | Method and system for dissolving a glued composite structure |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10022773.2 | 2000-05-10 | ||
DE2000122773 DE10022773A1 (de) | 2000-05-10 | 2000-05-10 | Verfahren zur Demontage einer geklebten Verbundstruktur |
DE2001201169 DE20101169U1 (de) | 2000-05-10 | 2001-01-23 | Anordnung zur Demontage einer geklebten Verbundstruktur |
DE20101169.7 | 2001-01-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001085828A1 true WO2001085828A1 (de) | 2001-11-15 |
Family
ID=26005621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/005360 WO2001085828A1 (de) | 2000-05-10 | 2001-05-10 | Verfahren und anordnung zur demontage einer geklebten verbundstruktur |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU2001262278A1 (de) |
WO (1) | WO2001085828A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1842731A1 (de) * | 2006-04-05 | 2007-10-10 | Ford Global Technologies, LLC. | Stoßfängersystem |
CN115415288A (zh) * | 2022-09-02 | 2022-12-02 | 重庆远达烟气治理特许经营有限公司科技分公司 | 层压件处理装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4413766A1 (de) * | 1994-04-20 | 1995-11-16 | Hoernlein Reinhard Gmbh | Verfahren und Vorrichtung zum Behandeln von mit Kunststoffschichten überzogenen Küchenmöbel- und Möbelteilen |
EP0999724A2 (de) * | 1998-11-04 | 2000-05-10 | Industrieservis Gesellschaft für Innovation Technologie-Transfer und Consulting für Thermische Prozessanlagen mbH | Lampen- und Reflektoranordnung |
WO2001007228A1 (de) * | 1999-07-27 | 2001-02-01 | Advanced Photonics Technologies Ag | Vulkanisieren |
-
2001
- 2001-05-10 AU AU2001262278A patent/AU2001262278A1/en not_active Abandoned
- 2001-05-10 WO PCT/EP2001/005360 patent/WO2001085828A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4413766A1 (de) * | 1994-04-20 | 1995-11-16 | Hoernlein Reinhard Gmbh | Verfahren und Vorrichtung zum Behandeln von mit Kunststoffschichten überzogenen Küchenmöbel- und Möbelteilen |
EP0999724A2 (de) * | 1998-11-04 | 2000-05-10 | Industrieservis Gesellschaft für Innovation Technologie-Transfer und Consulting für Thermische Prozessanlagen mbH | Lampen- und Reflektoranordnung |
WO2001007228A1 (de) * | 1999-07-27 | 2001-02-01 | Advanced Photonics Technologies Ag | Vulkanisieren |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1842731A1 (de) * | 2006-04-05 | 2007-10-10 | Ford Global Technologies, LLC. | Stoßfängersystem |
DE102006015914B4 (de) * | 2006-04-05 | 2019-01-17 | Ford Global Technologies, Llc | Stoßfängersystem |
CN115415288A (zh) * | 2022-09-02 | 2022-12-02 | 重庆远达烟气治理特许经营有限公司科技分公司 | 层压件处理装置 |
CN115415288B (zh) * | 2022-09-02 | 2024-01-23 | 重庆远达烟气治理特许经营有限公司科技分公司 | 层压件处理装置 |
Also Published As
Publication number | Publication date |
---|---|
AU2001262278A1 (en) | 2001-11-20 |
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