DE9218666U1 - Arrangement for making an adhesive connection - Google Patents
Arrangement for making an adhesive connectionInfo
- Publication number
- DE9218666U1 DE9218666U1 DE9218666U DE9218666U DE9218666U1 DE 9218666 U1 DE9218666 U1 DE 9218666U1 DE 9218666 U DE9218666 U DE 9218666U DE 9218666 U DE9218666 U DE 9218666U DE 9218666 U1 DE9218666 U1 DE 9218666U1
- Authority
- DE
- Germany
- Prior art keywords
- adhesive
- arrangement according
- bead
- joining surface
- heating wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000001070 adhesive effect Effects 0.000 title claims description 163
- 239000000853 adhesive Substances 0.000 title claims description 162
- 239000011324 bead Substances 0.000 claims description 59
- 238000010438 heat treatment Methods 0.000 claims description 53
- 235000011837 pasties Nutrition 0.000 claims description 13
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 239000004838 Heat curing adhesive Substances 0.000 claims description 4
- 238000001723 curing Methods 0.000 claims description 4
- 238000013007 heat curing Methods 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 2
- 239000012777 electrically insulating material Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004831 Hot glue Substances 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
-
- 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
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
- B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
-
- 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
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
- B29C65/3464—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint characterised by the cross-section of said heated elements which remain in the joint or by the cross-section of their coating, e.g. being triangular
-
- 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
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
- B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
- B29C65/348—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic with a polymer coating
-
- 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
- B29C65/4835—Heat 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
- 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
- B29C65/52—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 way of applying the adhesive
- B29C65/524—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 way of applying the adhesive by applying the adhesive from an outlet device in contact with, or almost in contact with, the surface of the part to be joined
-
- 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
-
- 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
- B29C66/114—Single butt 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
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
- B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
-
- 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
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/434—Joining substantially flat articles for forming corner connections, fork connections or cross connections
- B29C66/4342—Joining substantially flat articles for forming corner connections, e.g. for making V-shaped pieces
- B29C66/43421—Joining substantially flat articles for forming corner connections, e.g. for making V-shaped pieces with a right angle, e.g. for making L-shaped pieces
-
- 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
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
- B29C66/91411—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
-
- 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
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
- B29C66/91651—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating
- B29C66/91655—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating by controlling or regulating the current intensity
-
- 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
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
-
- 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
- C09J5/06—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving heating of the applied adhesive
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- 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
- B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
- B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Description
Die Erfindung betrifft eine Anordnung zur Herstellung einer Klebeverbindung zwischen zwei Werkstücken (im folgenden "Klebepartner" bezeichnet), in welcher Klebstoff in pastöser Form unter Bildung einer Klebstoffraupe auf eine Fügefläche des einen Klebepartners auftragbar, der andere Klebepartner mit seiner Fügefläche unter Verformung der Klebstoffraupe gegen die Fügefläche des ersten Klebstoffpartners andrückbar und sodann der Klebstoff unter Einwirkung von Wärme aushärtbar ist.The invention relates to an arrangement for producing an adhesive connection between two workpieces (hereinafter referred to as "adhesive partners"), in which adhesive in pasty form can be applied to a joining surface of one adhesive partner to form an adhesive bead, the other adhesive partner can be pressed with its joining surface against the joining surface of the first adhesive partner, deforming the adhesive bead, and the adhesive can then be cured under the influence of heat.
In der Klebetechnik ergibt sich häufig das Problem, daß zwei Körper durch eine Klebeverbindung miteinander verbunden werden müssen, wobei der Klebstoff in Zwischenräume eingebracht werden muß, die von außen her weder durch Wärme noch durch Feuchtigkeit einfach zugänglich sind. Weiter ist es bei solchen Anwendungen oft erwünscht, daß der Klebstoff nach der Applikation möglichst rasch aushärtet. Für diesen Zweck werden bereits Klebstoffe in Form von vorgefertigten Profilsträngen verwendet, in denen ein Heizdraht eingebettet ist. Zum Härten wird der Heizdraht an eine Stromquelle angeschlossen und auf eine vorgegebene Temperatur aufgeheizt. Zum Einsatz kamen hierfür vor allem kälteblockierte Klebstoffe auf Chloropren-Basis oder heißschmelzende Klebstoffe, die rein feuchtigkeitsaktiv sind. Für die Herstellung der Profilstränge sind jedenfalls nur solche KlebstoffSorten geeignet, die im kalten Zustand keine oder eine relativ schwache Oberflächen-Haftfähig-In adhesive technology, the problem often arises that two bodies have to be connected to one another by means of an adhesive bond, whereby the adhesive has to be introduced into gaps that are not easily accessible from the outside by heat or moisture. In addition, in such applications it is often desired that the adhesive hardens as quickly as possible after application. For this purpose, adhesives in the form of prefabricated profile strands in which a heating wire is embedded are already used. To harden, the heating wire is connected to a power source and heated to a predetermined temperature. Cold-blocked adhesives based on chloroprene or hot-melt adhesives that are purely moisture-active were used for this purpose. In any case, only those types of adhesive are suitable for the production of the profile strands that have no or relatively weak surface adhesive properties when cold.
keit besitzen. Viele wichtige Klebstofftypen kommen daher für die Herstellung der Profilstränge von vornherein nicht in Betracht. Abgesehen davon ist die Handhabung, die Lagerung und der Transport der Klebstoffstränge wegen der Gefahr des Zusammenbackens mit erheblichen Schwierigkeiten verbunden.Many important types of adhesive are therefore not suitable for the production of profile strands. Apart from that, handling, storing and transporting the adhesive strands is associated with considerable difficulties due to the risk of caking.
Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, eine Anordnung zur Herstellung einer Klebeverbindung zu entwickeln, in welcher ein pastöser, hitzehärtender Klebstoff auch an Fügestellen, die für eine Wärmezufuhr von außen her nicht ohne weiteres zugänglich sind, relativ rasch zur Aushärtung gebracht werden kann.Based on this, the invention is based on the object of developing an arrangement for producing an adhesive connection in which a pasty, heat-curing adhesive can be cured relatively quickly even at joints that are not easily accessible to heat supply from the outside.
Zur Lösung dieser Aufgabe wird gemäß der Erfindung vorgeschlagen, daß die Fügefläche des einen Klebepartners im Abstand mit einem Heizdraht überspannbar und beim anschließenden Auftragen des Klebstoffs in die dabei entstehende Klebstoffraupe einbettbar ist, und daß der Heizdraht zum Aufheizen und Aushärten des Klebstoffs mit elektrischem Strom beaufschlagbar ist. Der Klebstoff wird dabei vorteilhafterweise so aufgetragen und verformt, daß der Heizdraht in Längsrichtung im wesentlichen zentral oder mittig in die Klebstoffraupe eingebettet ist.To solve this problem, the invention proposes that the joining surface of one of the adhesive partners can be spanned at a distance with a heating wire and can be embedded in the adhesive bead that is created during the subsequent application of the adhesive, and that the heating wire can be subjected to electrical current to heat and harden the adhesive. The adhesive is advantageously applied and deformed in such a way that the heating wire is embedded in the adhesive bead essentially centrally or in the middle in the longitudinal direction.
Gemäß einer bevorzugten Ausgestaltung der Erfindung wird die mit der Gestalt eines Dreieck- oder Trapezprismas auf die Fügefläche des einen Klebepartners aufgetragene Klebstoffraupe beim Andrücken des zweitenAccording to a preferred embodiment of the invention, the adhesive bead in the shape of a triangular or trapezoidal prism applied to the joining surface of one adhesive partner is
&Mgr; *~> &Mgr; μ *~> μ
Klebstoffpartners im Bereich ihrer freien Prismenkante oder -seite unter Bildung eines im wesentlichen rechteckigen Raupenquerschnitts auf ein vorgegebenes, im wesentlichen dem doppelten Abstand des Heizdrahts von der ersten Fügefläche entsprechendes Abstandsmaß zwischen den Klebepartnern verformt.Adhesive partner is deformed in the area of its free prism edge or side to form an essentially rectangular bead cross-section to a predetermined distance between the adhesive partners, which essentially corresponds to twice the distance of the heating wire from the first joining surface.
Eine weitere vorteilhafte Ausgestaltung der Erfindung sieht vor, daß dem als Einkomponentenklebstoff auf Polyurethanbasis ausgebildeten, vorzugsweise elastisch aushärtenden Klebstoff eine warmhärtende Komponente beigemischt ist, die durch eine Temperaturerhöhung über den Heizdraht aktiviert wird. Die warmhärtende Klebstoffkomponente wird dabei zweckmäßig bei einer Heizdrahttemperatur von 110 bis 160 0C, vorzugsweise 130 0C aktiviert. Als Heizdraht wird hierzu ein Widerstandsdraht verwendet, der bei einer Stromstärke von 5 bis 16 A, vorzugsweise 9 bis 12 A auf die Aktivierungstemperatur des Klebstoffs aufheizbar ist. Um eine ausreichende Durchhärtung der Klebstoffraupe zu gewährleisten, sollte der Heizdraht etwa 10 bis 30 min mit Strom beaufschlagt werden. Die beim Einbetten stirnseitig über die Klebstoffraupe überstehenden Enden des Heizdrahts können nach erfolgter Aushärtung der Klebeverbindung abgetrennt werden, während der Rest des Heizdrahts innerhalb der Klebeverbindung verbleibt und dort beispielsweise als Verstärkungselement dient.A further advantageous embodiment of the invention provides that a heat-curing component is added to the adhesive, which is designed as a one-component polyurethane-based adhesive and is preferably elastically curing, and which is activated by an increase in temperature via the heating wire. The heat-curing adhesive component is expediently activated at a heating wire temperature of 110 to 160 ° C, preferably 130 ° C. A resistance wire is used as the heating wire, which can be heated to the activation temperature of the adhesive at a current of 5 to 16 A, preferably 9 to 12 A. In order to ensure that the adhesive bead hardens sufficiently, the heating wire should be supplied with current for around 10 to 30 minutes. The ends of the heating wire which protrude beyond the adhesive bead on the front side during embedding can be severed after the adhesive bond has hardened, while the rest of the heating wire remains within the adhesive bond and serves there, for example, as a reinforcing element.
Bei Bedarf können zur Erzielung einer höheren Festigkeit der Klebeverbindung die Fügeflächen mit mindestens zwei zueinander parallelen Heizdrähten überspannt undIf necessary, the joining surfaces can be covered with at least two parallel heating wires to achieve a higher strength of the adhesive bond and
beim anschließenden Auftragen des Klebstoffs vorzugsweise gleichzeitig in je eine Klebstoffraupe eingebettet werden. Eine weitere Verbesserung in dieser Hinsicht kann dadurch erzielt werden, daß zwischen zwei mit Heizdrähten versehenen Klebstoffraupen mindestens eine weitere, zu diesen parallele, heizdrahtfreie pastöse Klebstoffraupe auf die Fügefläche des einen Klebepartners aufgetragen wird. Die Klebstoffraupen tragen hierbei gemeinsam zur Klebeverbindung bei.during the subsequent application of the adhesive, they should preferably be embedded in one adhesive bead at a time. A further improvement in this respect can be achieved by applying at least one additional, parallel, heating-wire-free, pasty adhesive bead to the joining surface of one of the adhesive partners between two adhesive beads provided with heating wires. The adhesive beads together contribute to the adhesive bond.
Vorteilhafterweise sind zwei an einem der Klebepartner lösbar befestigbare Halteorgane vorgesehen, zwischen denen der Heizdraht im Abstand über der Fügefläche einspannbar ist. Wenn einer der Klebepartner aus elektrisch leitfähigem Material besteht, sollten die Halteorgane zumindest teilweise aus einem elektrisch isolierenden Werkstoff bestehen.Advantageously, two holding elements are provided which can be detachably attached to one of the bonding partners, between which the heating wire can be clamped at a distance above the joining surface. If one of the bonding partners consists of electrically conductive material, the holding elements should consist at least partially of an electrically insulating material.
Die erfindungsgemäße Anordnung umfaßt zweckmäßig weiter eine mit pastösem Klebstoff unter Druck beaufschlagbare, eine gegen die Fügefläche des einen Klebepartners hin ausrichtbare stirnseitige Austrittsöffnung aufweisende und entlang der Fügefläche verschiebbare Auftragsdüse, deren stirnseitige Austrittsöffnung durch eine Begrenzungswand begrenzt ist, die auf ihrer in Verschieberichtung vorderen und rückwärtigen Seite je eine zur Stirnseite hin randoffene, mit der Austrittsöffnung verbundene, den Heizdraht während des Klebstoff auf trags umgreifende Aussparung aufweist. Die in Verschieberichtung rückwärtige randoffene Aussparung weist dabei eine dem Querschnitt der aufzutragendenThe arrangement according to the invention expediently further comprises an application nozzle which can be pressurized with pasty adhesive, has a front outlet opening which can be aligned against the joining surface of one of the adhesive partners and can be moved along the joining surface, the front outlet opening of which is delimited by a boundary wall which has on its front and rear sides in the direction of displacement a recess which is open at the edge towards the front, is connected to the outlet opening and surrounds the heating wire during the adhesive application. The rear recess which is open at the edge in the direction of displacement has a cross-section of the material to be applied.
Klebstoffraupe entsprechende, vorzugsweise dreieckige
oder trapezförmige Randkontur auf, während die in Verschieberichtung vordere Aussparung als quer auf den
Heizdraht aufsteckbare und während des Klebstoffauftrags entlang diesem geführte Schlitzöffnung ausgebildet
ist.Adhesive bead corresponding, preferably triangular
or trapezoidal edge contour, while the front recess in the direction of displacement is designed as a transverse
A slotted opening is formed which can be attached to the heating wire and guided along it during the adhesive application.
Um mehrere Klebstoffraupen gleichzeitig applizieren zu können, sind mindestens zwei im Abstand voneinander in
der Begrenzungswand der Auftragsdüse angeordnete rückwärtige randoffene Aussparungen für den Austritt je einer
Klebstoffraupe vorgesehen. Um in die Klebstoffraupen
zusätzlich Heizdrähte einbetten zu können, sind
außerdem mindestens zwei im Abstand voneinander in der Begrenzungswand angeordnete, mit einer der rückwärtigen
Aussparungen in Verschieberichtung fluchtende vordere
Schlitzöffnungen vorgesehen. Die Auftragsdüse kann dabei als Breitdüse mit mehreren vorderen und rückwärtigen
randoffenen Aussparungen ausgebildet sein.In order to be able to apply several adhesive beads at the same time, at least two rear recesses with open edges are provided, arranged at a distance from one another in the boundary wall of the application nozzle, for the exit of one adhesive bead each. In order to be able to embed additional heating wires in the adhesive beads,
In addition, at least two front plates arranged at a distance from one another in the boundary wall and aligned with one of the rear recesses in the direction of displacement
Slotted openings are provided. The application nozzle can be designed as a wide nozzle with several front and rear open-edged recesses.
Zur Erleichterung des Klebstoffauftrags kann ein seitlich
über die Auftragsdüse überstehendes, an einer zur aufzutragenden Klebstoffraupe parallelen Führungsoder
Außenkante des einen Klebepartners anschlagbares
Führungsorgan vorgesehen werden.To facilitate the application of adhesive, a sideways protruding nozzle can be attached to a guide or outer edge of one of the adhesive partners, parallel to the adhesive bead to be applied.
management body should be provided.
Eine vereinfachte Alternative zur Lösung der Erfindungsaufgabe besteht darin, daß erst nach dem Auftragen des
pastösen Klebstoffs ein Heizdraht in Längsrichtung in
die Klebstoffraupe eingedrückt und dabei in diese eingebettet wird und daß anschließend der zweite Klebe-A simplified alternative to solving the problem of the invention is that only after the application of the pasty adhesive a heating wire is inserted in the longitudinal direction in
the adhesive bead is pressed in and embedded in it and that the second adhesive
partner mit seiner Fügefläche gegen die Klebstoffraupe angedrückt wird.partner is pressed with its joining surface against the adhesive bead.
Das Aufheizen des Heizdrahts erfolgt zweckmäßig mit Hilfe einer Konstantstromquelle mit einstellbarer Stromstärke.The heating wire is conveniently heated using a constant current source with adjustable current intensity.
Im folgenden wird die Erfindung anhand der Zeichnung näher erläutert. Es zeigenThe invention is explained in more detail below with reference to the drawing.
Fig. 1 eine Seitenansicht eines mit einem Heizdraht bestückten ersten Klebepartners beim Klebstoffauftrag mit Hilfe einer ausschnittsweise dargestellten Auftragsdüse;Fig. 1 is a side view of a first adhesive partner equipped with a heating wire during adhesive application with the aid of a partially shown application nozzle;
Fig. 2 einen Schnitt entlang der Schnittlinie 2-2 der Fig. 1;Fig. 2 is a section along the line 2-2 of Fig. 1;
Fig. 3 einen Schnitt durch den ersten Klebepartner mit zwei im Querschnitt dreieckigen Klebstoffraupen; Fig. 3 a section through the first adhesive partner with two adhesive beads with a triangular cross-section;
Fig. 4 einen Schnitt durch die Klebeverbindung zwischen zwei Klebepartnern;Fig. 4 a section through the adhesive bond between two adhesive partners;
Fig. 5 eine ausschnittsweise schaubildliche Darstellung einer Auftragsdüse mit einer Raupenaustrittsöffnung; Fig. 5 is a partial diagrammatic representation of an application nozzle with a bead outlet opening;
Fig. 6 eine Vorderansicht einer als Breitdüse mit mehreren Raupenaustrittsöffnungen ausgebildetenFig. 6 is a front view of a nozzle designed as a wide nozzle with several bead outlet openings.
• ··
Auftragsdüse;application nozzle;
Fig. 7 eine schaubildliche Darstellung der Auftragsdüse nach Fig. 6.Fig. 7 is a diagrammatic representation of the application nozzle according to Fig. 6.
Die in Fig. 4 gezeigte Klebeverbindung zwischen den beiden Klebepa.rtnern 10 und 12 umfaßt zwei im Querschnitt in wesentlichen rechteckige Klebstoffraupen 14, die mit ihren Breitseitenflächen an den Fügeflächen 16,18 der Klebepartner 10,12 haften und den Zwischenraum 2 0 zwischen den Klebepartnern vorzugsweise elastisch überbrücken.The adhesive connection shown in Fig. 4 between the two adhesive partners 10 and 12 comprises two adhesive beads 14 which are essentially rectangular in cross section and which adhere with their broad side surfaces to the joining surfaces 16, 18 of the adhesive partners 10, 12 and preferably elastically bridge the gap 20 between the adhesive partners.
Zur Herstellung dieser Klebeverbindung wird zunächst über die Fügefläche 16 des einen Klebepartners 10 ein Heizdraht 22 gespannt (vgl. Fig. 1). Zu diesem Zweck werden an einander gegenüberliegenden freien Außenflächen des Klebepartners 10 laschenförmige Halteorgane beispielsweise mittels Schrauben 2 6 so befestigt, daß ein Ausleger 28 der Halteorgane 24 etwas über die Ebene der Fügefläche 16 übersteht. Der mit seinen freien Enden 3 0 durch eine entsprechende Aussparung im Ausleger 28 der Halteorgane 24 hindurchgreifende Heizdraht 2 2 kann mittels auf die Enden 3 0 aufgeschobener Stellringe 32 zwischen den einander gegenüberliegenden Halteorganen in definiertem Abstand über der Fügefläche 16 gespannt werden.To produce this adhesive connection, a heating wire 22 is first stretched over the joining surface 16 of one of the adhesive partners 10 (see Fig. 1). For this purpose, tab-shaped holding elements are attached to opposing free outer surfaces of the adhesive partner 10, for example by means of screws 26, so that an extension 28 of the holding elements 24 protrudes slightly above the plane of the joining surface 16. The heating wire 22, which extends with its free ends 30 through a corresponding recess in the extension 28 of the holding elements 24, can be stretched between the opposing holding elements at a defined distance above the joining surface 16 by means of adjusting rings 32 pushed onto the ends 30.
Sodann wird auf die Fügefläche 16 pastöser Klebstoff in der Weise aufgetragen, daß der Heizdraht 22 in die dabei gebildete standfeste Klebstoffraupe 14 eingebettetThen, pasty adhesive is applied to the joining surface 16 in such a way that the heating wire 22 is embedded in the stable adhesive bead 14 thus formed.
wird. Der Klebstoffauftrag erfolgt mit Hilfe einer mit dem pastösen Klebstoff 34 beaufschlagbaren Auftragsdüse 36, die eine senkrecht in Richtung Fügefläche 16 ausrichtbare stirnseitige Austrittsöffnung 3 8 aufweist und entlang der Fügefläche 16 in Richtung des Pfeils 40 verschiebbar ist. Die zur stirnseitigen Austrittsöffnung 38 führende Begrenzungswand 42 der Auftragsdüse weist an ihrer in Verschieberichtung vorderen Seite eine auf den Heizdraht 22 aufreitende, randoffene Schlitzöffnung 44 und an ihrer rückwärtigen Seite eine den Heizdraht 14 übergreifende randoffene Aussparung 46 für den Austritt des Klebstoffs 34 auf. Der Querschnitt der Klebstoffraupe 14 wird dabei durch die bei den gezeigten Ausführungsbeispielen dreieckige Randkontur der randoffenen Aussparung 4 6 bestimmt. Wie aus den Fig. 1 und 2 zu ersehen ist, wird die Auftragsdüse 36 mit ihrer stirnseitigen Austrittsöffnung 38 dicht an der Fügefläche 16 entlanggeführt, so daß der austretende Klebstoff an der Fügefläche 16 anfließen kann, während der Heizdraht 22 mittig in die Klebstoffraupe 14 eingebettet wird.The adhesive is applied using an application nozzle 36 that can be filled with the pasty adhesive 34 and that has a front outlet opening 38 that can be aligned vertically in the direction of the joining surface 16 and can be moved along the joining surface 16 in the direction of the arrow 40. The boundary wall 42 of the application nozzle leading to the front outlet opening 38 has on its front side in the direction of displacement a slot opening 44 that rides onto the heating wire 22 and has an open-edged recess 46 that extends over the heating wire 14 on its rear side for the adhesive 34 to exit. The cross section of the adhesive bead 14 is determined by the triangular edge contour of the open-edged recess 46 in the embodiments shown. As can be seen from Fig. 1 and 2, the application nozzle 36 with its front outlet opening 38 is guided close to the joining surface 16 so that the emerging adhesive can flow onto the joining surface 16, while the heating wire 22 is embedded centrally in the adhesive bead 14.
Nach Fertigstellung des Klebstoffauftrags ergibt sich die in Fig. 3 ersichtliche Konfiguration, bei der die Klebstoffraupen 14 mit ihrer Dreiecksspitze frei über die Fügefläche 16 überstehen und von einem zentralen Heizdraht 22 durchsetzt sind. Sodann wird der zweite Klebepartner 12 mit seiner Fügefläche 18 so gegen die Fügefläche 16 des ersten Klebepartners 10 geführt, daß die Klebstoffraupen 14 unter Anfließen gegen die Fügefläche 18 in die in Fig. 4 gezeigte Konfiguration zu-After the adhesive application has been completed, the configuration shown in Fig. 3 is obtained, in which the adhesive beads 14 protrude freely over the joining surface 16 with their triangular tip and are penetrated by a central heating wire 22. The second adhesive partner 12 is then guided with its joining surface 18 against the joining surface 16 of the first adhesive partner 10 in such a way that the adhesive beads 14 flow against the joining surface 18 into the configuration shown in Fig. 4.
.. Q —.. Q—
sammengedrückt werden.be compressed.
Die Klebstoffraupen bestehen aus einem warmhärtendem Klebstoff, vorzugsweise auf Polyurethanbasis, dessen warmhärtende Komponente durch Aufheizen des Heizdrahts 22 auf eine Temperatur von ca 130 0C aktiviert wird und beispielsweise innerhalb von 2 0 Minuten zur Aushärtung der Klebstoffraupen führt.The adhesive beads consist of a heat-curing adhesive, preferably based on polyurethane, the heat-curing component of which is activated by heating the heating wire 22 to a temperature of approximately 130 ° C and leads to the curing of the adhesive beads, for example, within 20 minutes.
Nach dem Aushärten des Klebstoffs können die Halteorgane 28 vom ersten Klebepartner 10 abgenommen und die überstehenden Enden 30 des Heizdrahts abgetrennt werden. After the adhesive has hardened, the holding elements 28 can be removed from the first adhesive partner 10 and the protruding ends 30 of the heating wire can be severed.
In Fig. 5 ist die in Fig. 1 und 2 eingesetzte einfache Auftragsdüse 3 6 dargestellt, die eine im Umriß dreieckige Aussparung 4 6 zur Erzeugung einer Klebstoffraupe 14 und eine zugehörige Schlitzöffung 44 für den Heizdrahtdur chtritt aufweist.Fig. 5 shows the simple application nozzle 3 6 used in Fig. 1 and 2, which has a triangular recess 4 6 in outline for producing an adhesive bead 14 and an associated slot opening 44 for the passage of the heating wire.
In den Fig. 6 und 7 ist ein gegenüber Fig. 5 abgewandeltes Ausführungsbeispiel einer Auftragsdüse 36' gezeigt, die als Breitdüse mit mehreren im Abstand voneinander angeordneten, randoffenen Aussparungen 4 6 für den Austritt je einer Klebstoffraupe 14 ausgebildet ist. Dabei sind nur die beiden außenliegenden randoffenen Aussparungen 46 zum Umspritzen eines Heizdrahts 22 bestimmt, da nur sie mit Schitzöffnungen 44 in der gegenüberliegenden Wandseite der Begrenzungswand 42 fluchten. Mit den drei mittleren randoffenen Aussparungen 4 6 werden dagegen heizdrahtlose KlebstoffraupenIn Fig. 6 and 7, an embodiment of an application nozzle 36' is shown that is modified compared to Fig. 5, which is designed as a wide nozzle with several spaced-apart, open-edge recesses 46 for the exit of one adhesive bead 14 each. Only the two outer, open-edge recesses 46 are intended for overmolding a heating wire 22, since only they are aligned with slot openings 44 in the opposite wall side of the boundary wall 42. The three middle, open-edge recesses 46, on the other hand, are used to apply adhesive beads without heating wires.
- 10 -- 10 -
gebildet. Diese Ausbildung der Auftragsdüse 36' bringt für die Herstellung großflächiger Klebeverbindungen mit mehreren Klebstoffraupen eine gewisse Vereinfachung mit sich, da nur zwei Heizdrähte 22 montiert werden müssen. Es wird damit erreicht, daß die beiden außen liegenden Klebstoffraupen relativ rasch aushärten und dadurch eine ausreichende Verbindung gewährleisten, die eine Weiterbearbeitung des betreffenden Verbundelements ermöglichen. Die mittleren Klebstoffraupen 14 benötigen zum Aushärten eine etwas längere Zeit (beispielsweise einen Tag) und gewährleisten für den bestimmungsgemäßen Gebrauch des Verbundelements die notwendige Endfestigkeit der Klebeverbindung.This design of the application nozzle 36' brings a certain simplification for the production of large-area adhesive joints with several adhesive beads, since only two heating wires 22 have to be mounted. This ensures that the two outer adhesive beads harden relatively quickly and thus ensure a sufficient connection that enables further processing of the composite element in question. The middle adhesive beads 14 require a somewhat longer time to harden (for example one day) and ensure the necessary final strength of the adhesive bond for the intended use of the composite element.
Bei dem in Fig. 6 gezeigten Ausführungsbeispiel weist die Auftragsdüse 36' ein seitlich und stirnseitig überstehendes Führungsorgan 48 auf, das gegen eine zu den aufzutragenden Klebstoffraupen 14 parallele Führungsoder Außenkante des Klebepartners 10 anschlagbar ist und dadurch eine bessere Handhabung der Auftragsdüse 3 6' im Zuge des Klebstoffauftrags gewährleistet.In the embodiment shown in Fig. 6, the application nozzle 36' has a guide member 48 that protrudes laterally and at the front and can be abutted against a guide or outer edge of the adhesive partner 10 that is parallel to the adhesive beads 14 to be applied, thereby ensuring better handling of the application nozzle 36' during the adhesive application.
Zusammenfassend ist folgendes festzustellen: Die Erfindung bezieht sich auf eine Anordnung zur Herstellung einer Klebeverbindung zwischen zwei Werkstücken, in welcher Klebstoff in pastöser Form unter Bildung einer Klebstoffraupe auf eine Fügefläche des einen Werkstücks aufgetragen, das andere Werkstück mit seiner Fügefläche unter Verformung der Klebstoffraupe gegen die Fügefläche des ersten Werkstücks geführt und sodann der Klebstoff unter Einwirkung von Wärme ausgehärtet wird. UmIn summary, the following can be stated: The invention relates to an arrangement for producing an adhesive connection between two workpieces, in which adhesive in pasty form is applied to a joining surface of one workpiece to form an adhesive bead, the other workpiece is guided with its joining surface against the joining surface of the first workpiece, deforming the adhesive bead, and the adhesive is then cured under the influence of heat.
auch bei Verbundelementen mit von außen her schwer zugänglichen Klebestellen ein rasches Aushärten zu gewährleisten, wird die Fügefläche des einen Werkstücks im Abstand mit einem Heizdraht überspannt und beim anschließenden Auftragen des Klebstoffs in die Klebstoffraupe eingebettet. Zum Aushärten des Klebstoffs kann sodann der seitlich überstehende Heizdraht mit elektrischem Strom beaufschlagt und dadurch aufgeheizt werden.To ensure rapid curing even in composite elements with adhesive points that are difficult to access from the outside, the joining surface of one workpiece is covered with a heating wire at a distance and embedded in the adhesive bead when the adhesive is subsequently applied. To cure the adhesive, the heating wire protruding to the side can then be subjected to electrical current and thus heated up.
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9218666U DE9218666U1 (en) | 1992-02-07 | 1992-02-07 | Arrangement for making an adhesive connection |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9218666U DE9218666U1 (en) | 1992-02-07 | 1992-02-07 | Arrangement for making an adhesive connection |
DE4203505A DE4203505A1 (en) | 1992-02-07 | 1992-02-07 | Rapid adhesion bonding - using laid track of adhesive paste at one surface with an embedded electrical heating wire to harden the adhesive |
Publications (1)
Publication Number | Publication Date |
---|---|
DE9218666U1 true DE9218666U1 (en) | 1995-01-05 |
Family
ID=25911620
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE9218666U Expired - Lifetime DE9218666U1 (en) | 1992-02-07 | 1992-02-07 | Arrangement for making an adhesive connection |
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DE (1) | DE9218666U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114439828A (en) * | 2021-12-23 | 2022-05-06 | 深圳市埃尔法光电科技有限公司 | Automatic die bonding coupling machine and coupling method |
-
1992
- 1992-02-07 DE DE9218666U patent/DE9218666U1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114439828A (en) * | 2021-12-23 | 2022-05-06 | 深圳市埃尔法光电科技有限公司 | Automatic die bonding coupling machine and coupling method |
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