JP5653056B2 - Bonding method - Google Patents

Description

  The present invention relates to a bonding method for use in bonding metals, plastics, concrete, ceramics, rubber and other various adherends, and an abrasive-containing adhesive used in the bonding method.

  As a means for joining various types of adherends, there is welding when the adherends are metals, and when one or both of the adherends is other than metal, bonding using various adhesives is performed. Widely done in general.

  When the required adherends are bonded using the adhesive as described above, the following procedures are usually performed.

  That is, first, the adhesion surface of each adherend is roughened (roughened) with an abrasive or the like. Next, the abrasive etc. used for the roughening that adheres to the adhesive surfaces of the adherends and the generated polishing wrinkles are cleaned. Next, after applying an adhesive to one or both adhesive surfaces of each of the adherends, the position is fixed in a state where the adhesive surfaces of the adherends are aligned with the adhesive interposed. Thus, the adhesive is cured, whereby the adhesive surfaces of the adherends are joined together via the cured adhesive.

  In addition, as a method for joining a pair of adherends, for example, a pair of body plates provided with a solder layer in a state having conductivity, a conductive powder is formed on the body plate provided with the solder layer. Then, a conductive adhesive composed of abrasive powder and a binder is applied, and then the ultrasonic vibrations are applied to the copper plates in a state where the solder layers of the body plate are arranged so as to overlap each other. Then, the surface of the solder layer of each copper plate is polished by the abrasive particles contained in the conductive adhesive to expose the surface of the oxide film, thereby exposing the pure solder layer. Conventionally, it has been proposed that the exposed copper plates are bonded to each other via a conductive adhesive containing the conductive powder (see, for example, Patent Document 1).

JP-A-8-170054

  However, in the above-described conventional bonding method using an adhesive, a roughening process and a roughened bonding surface are performed as a pretreatment for bonding work on the bonding surface of each adherend. The actual condition is that it takes time and effort.

  In addition, when the polishing flaw generated due to the roughening of the adhesion surface of the adherend is insufficient and the polishing flaw remains on the adhesion surface of the adherend, it remains on the adhesion surface. Since the direct adhesion of the adhesive to the adhesion surface of the adherend is hindered by the polishing pad, the adhesive force is reduced.

  In addition, if moisture or oil remains after the roughened adhesive surface cleaning process of each of the adherends, the adhesion of the adhesive to the adhesive surface decreases, and this also decreases the adhesive strength. May end up.

  Furthermore, when the adhesion surfaces of the respective adherends are rubbed together, if there are slight protrusions on the adhesion surfaces of both, the adhesive layer becomes thicker at the portions other than the protrusions. There is a concern that the adhesive strength may be reduced at the portion where the layer becomes thick.

  In addition, when roughening the bonding surface of each of the adherends, the appearance is sometimes deteriorated because polishing is often performed beyond the range of the bonding surface.

  The conductive adhesive used in the technique disclosed in Patent Document 1 is essential for obtaining conductivity with conductive powder. For this purpose, the particle size of the abrasive powder is, for example, the average particle size. As small as 3 μm.

  Therefore, when the film thickness of 130 μm is applied to the surface of the copper plate provided with the solder layer, as it is, few of the abrasive powders contained in the conductive adhesive are present near the surface of the solder layer of the copper plate. Therefore, the copper plate provided with the solder layer after the application of the conductive adhesive is centrifuged in a posture in which the copper plate is positioned on the outer periphery, whereby the abrasive powder contained in the conductive adhesive is removed from the copper plate. Since it must be collected on the surface of the solder layer and a centrifugal device for that purpose is required, there is a problem that the environment where it can be implemented is limited and it is not suitable for field work.

  Moreover, since the particle size of the abrasive powder contained in the conductive adhesive is small, the fact is that the polishing effect is low.

  Furthermore, in general, the strength of the adhesive is affected by the layer thickness, and since the strength decreases if the layer thickness is too thick or too thin, there is an optimum layer thickness for each type of adhesive. In the abrasive powder having a small particle size, it cannot function as a spacer in the film thickness of the conductive adhesive provided between the body plates provided with the solder layer as the adherend. In fact, it does not contribute to the management of the layer thickness of the powder adhesive.

  Moreover, in the one shown in Patent Document 1, the surface of the solder layer of the body plate made of the abrasive powder simply by applying ultrasonic vibration between the copper plates provided with a pair of solder layers arranged via the conductive adhesive layer Since the oxide film is polished, the pressing force against the solder layer of each copper plate to be polished by the abrasive powder is weak. Therefore, it is difficult to increase the polishing force by the abrasive powder.

  Therefore, the present invention can roughen the adhesive surface of the adherend by rough cutting and polish, and can easily manage the adhesive layer thickness between the adherends. The materials can be bonded with a strong adhesive force, and further, the cleaning process accompanying the roughening of the adhesion surface of the adherend can be eliminated, and the labor required for adhering the adherend can be reduced. It is an object of the present invention to provide an adhesion method for achieving the above and an abrasive-containing adhesive used in the method.

In order to solve the above-mentioned problems, the present invention provides an adhesive comprising an abrasive component mixed in one or both of the adhesive surfaces of two adherends to be joined, corresponding to claim 1. The adhesive surfaces of the adherends are applied to each other, and then the adherend is applied by the abrasive while performing a rubbing process in a state where a pressing force in a direction of pressing the adherends is applied to the adherends. of an adhesive surface was polished, then the abrasive is caused to function as a spacer between the two adherends, of the abrasive-containing adhesive interval between the adherend as the distance the particle size of the abrasive the adhesive component is cured, the adhesive component was cured and bonding method so as to bond the bonding surfaces of the respective adherends.

According to the present invention, the following excellent effects are exhibited.
(1) An adhesive formed by mixing an abrasive with an adhesive component is applied to one or both of the adhesive surfaces of two adherends to be joined, and the adhesive surfaces of the respective adherends are matched, The adhering surface of the adherend is polished by the abrasive while performing a rubbing process in a state in which a pressing force in a direction in which the adherends are pressed against each other is applied, and then the abrasive is applied to both adherends. to function as a spacer between the intervals of the adherend to cure the adhesive component of the abrasive-containing adhesive as the distance the particle size of the abrasive, each deposited by adhesive component was cured As the bonding method is to join the adhesive surfaces of the materials, the adhesive surfaces of the adherends are each roughened by polishing, with the adhesive component of the abrasive-containing adhesive interposed therebetween. Can be joined together.
(2) The polishing rod generated when polishing with the abrasive in the abrasive-containing adhesive on the bonding surface of each adherend is performed in accordance with the sliding operation between the adherends. Since it comes to be caught in the agent, it is possible to prevent the polishing flaws from remaining on the adhesion surface of each adherend. Further, since the polishing rod is made of the same material as the respective adherends, it is possible to prevent the adhesive strength of the adhesive component of the abrasive-containing adhesive from being lowered by the entrainment of the polishing rod.
(3) Furthermore, since the roughening process and the cleaning process conventionally performed as the pretreatment for the bonding surface of each adherend are unnecessary, it is possible to prevent the oil and moisture from remaining on the bonding surface of each adherend.
(4) Furthermore, when the adhesive component of the abrasive-containing adhesive is cured, the abrasive and the abrasive wrinkle function as aggregates, so that the adhesive strength between the adherends can be increased.
(5) Therefore, it becomes possible to adhere | attach each adherend with strong adhesive force.
(6) In addition, since the roughening process and the cleaning process that have been conventionally performed as the pretreatment for the bonding surface of each adherend are unnecessary, the work process associated with the bonding of each adherend is simplified and bonded. The labor required for the work can be reduced.
(7) Furthermore, as an abrasive mixed in the adhesive component, when bonding the two adherends to be joined with the adhesive component, in order to obtain the optimum adhesive strength by the adhesive component, between the two adherends in so are to use a thing particle size that makes function as a spacer, the layer thickness of the arranged abrasive-containing adhesive between the adjacent respective adhesion surfaces of the adherend, optimal adhesion strength due to the adhesive component Can be adjusted to the desired adhesive layer thickness.
(8) Moreover, the polishing effect on the adhesive surface of each adherend by the abrasive in the abrasive-containing adhesive can be enhanced, and the respective adhesive surfaces of the respective adherends are roughened by rough grinding. Can be performed efficiently. Therefore, the effect of further increasing the adhesive strength between the adherends can be expected.
(9) an abrasive for polishing the two adherends to be bonded to the adhesive component is mixed becomes, the best two adherends to be the joining by adhesive components when the adhesive through the adhesive component In order to obtain a good adhesive strength, the abrasive is a particle size of the interval between the adherends so that it functions as a spacer between the adherends , and the abrasive is cured when the adhesive component is cured. By using the abrasive- containing adhesive in which the polishing rod of each of the adherends polished by the above is used as an aggregate, it is possible to easily realize the abrasive-containing adhesive using the bonding method of (1). it can.
(10) in order to obtain an optimum adhesion strength by the adhesive component, the particle size of the abrasive to be mixed in the adhesive component, configurations and to lever which is assumed to have a particle size of 10 .mu.m to 1000 .mu.m, abrasive-containing adhesive The polishing effect on the adhesion surface of each adherend by the abrasive in the inside can be enhanced, and the roughening by rough grinding can be efficiently performed on each adhesion surface of each adherend.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows one Embodiment of the adhesion | attachment method of this invention and the abrasive | polishing agent containing adhesive agent used for this adhesion | attachment method. It is a schematic diagram which shows the state which adhere | attached materials were adhere | attached using the abrasive | polishing agent containing adhesive agent of FIG.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  1 and 2 show an embodiment of the bonding method of the present invention and an abrasive-containing adhesive used in the bonding method, and are as follows.

  That is, the abrasive-containing adhesive 1 used for carrying out the bonding method of the present invention is optimal in accordance with the adhesive component 2 when the adherends 4 and 5 are bonded to the adhesive component 2 via the adhesive component 2. As a particle size corresponding to the adhesive layer thickness that provides a good adhesive strength, for example, a configuration in which abrasive 3 having a particle size of 10 μm to 1000 μm is mixed is used.

  More specifically, the adhesive component 2 includes, for example, casein adhesive, glue, starch paste (starch adhesive), other components known as natural adhesives, urea resin adhesives, and melamine resins. Adhesives 4 and 5 such as cement adhesives, polyvinyl alcohol adhesives, cyanoacrylate adhesives, epoxy adhesives, other components known as synthetic adhesives, and cement and putty. Depending on the material, the adhesive component 2 capable of exhibiting the required adhesive strength for the adherends 4 and 5 may be appropriately selected and used.

  The abrasive 3 can polish (cut) the respective adhesive surfaces 4a and 5a having hardness according to the materials of the adherends 4 and 5, and obtain an adhesive strength with the adhesive component 2. What is necessary is just to select and use suitably the high-hardness substance conventionally used in order to scrape or polish a metal, a nonmetal, etc.

  In the case of using the abrasive-containing adhesive 1 of the present invention having the above configuration, first, as shown in FIG. 1, one of the adhesion surface 4a of the adherend 4 and the adhesion surface 5a of the adherend 5 is used. Or after applying the abrasive-containing adhesive 1 of the present invention to both, the adhesive surfaces 4a and 5a of the adherends 4 and 5 are in a state of interposing the abrasive-containing adhesive 1 of the present invention. Place them together.

  Next, a pressing force in a direction of pressing the adherends 4 and 5 is applied to the adherends 4 and 5. Specifically, for example, as shown in FIG. 1, the adherend 4 is laminated on the upper side of the adherend 5 placed on a gantry (not shown) via the abrasive-containing adhesive 1 of the present invention. In the disposed state, the pressing force in the direction of arrow F is applied to the size of 0.98 Pa to 980 Pa from above the adherend 4 by human power or other required pressing means.

  Next, while the pressing force in the direction of the arrow F is applied, the adherend 4 is alternately moved with the required amplitude in the directions indicated by the arrows A and B in FIG. Relative sliding of the adherend 4 and the adherend 5 is performed in a circle.

  As a result, the adhesion surfaces 4a and 5a of the adherends 4 and 5 are polished (ground) by the abrasive 3 contained in the abrasive-containing adhesive 1 of the present invention as shown in FIG. ) At this time, the abrasive 3 has a large particle size of 10 μm to 1000 μm corresponding to the adhesive layer thickness that provides the optimum adhesive strength when bonding the adherends 4 and 5, High polishing effect. Further, when the relative adherence between the adherend 4 and the adherend 5 is performed, a pressing force is applied in a direction in which the adherends 4 and 5 are pressed against each other. The polishing effect of the adhesive surfaces 4a and 5a of the adherends 4 and 5 by the abrasive 3 is enhanced. Therefore, the adhesive surfaces 4a and 5a of the adherends 4 and 5 are in a state where the roughening is efficiently performed by the abrasive 3 and the surface is roughened.

  Thereafter, after the relative rubbing operation of each of the adherends 4 and 5 is finished, the bonding surfaces 4a and 5a of the adherends 4 and 5 are arranged at predetermined bonding positions. The adhesive component 2 in the abrasive-containing adhesive 1 of the present invention is cured.

  As described above, the adhesion surfaces 4a and 5a of the adherends 4 and 5 are in a state where the surface has been roughened, respectively, through the cured adhesive component 2 in the abrasive-containing adhesive 1 of the present invention. It comes to be joined.

  At this time, as described above, the abrasive 3 of the abrasive-containing adhesive 1 according to the present invention was made to correspond to the thickness of the adhesive layer at which the optimum adhesive strength was obtained when the adherends 4 and 5 were bonded. Since the particle size is set, in the state where the pressing force is applied to the adherends 4 and 5 as described above, the abrasive 3 serves as a spacer between the adherends 4 and 5. As a result, the distance between each of the adherends 4 and 5 comes close to a distance corresponding to the particle size of the abrasive 3. As a result, the layer thickness of the abrasive-containing adhesive 1 of the present invention present between the adhesive surfaces 4a and 5a of the adherends 4 and 5 is set to an adhesive layer thickness that provides optimum adhesive strength. In order to be adjusted, each of the adherends 4 and 5 is joined by the abrasive-containing adhesive 1 of the present invention in a state adjusted to an adhesive layer thickness that provides an optimum adhesive strength. Become.

  Thus, according to the bonding method of the present invention and the abrasive-containing adhesive 1 used in the bonding method, the bonding surfaces 4a and 5a of the adherends 4 and 5 are connected to each bonding surface 4a. In the state in which the surface is roughened by rough grinding 5a, bonding can be performed via the adhesive component 2 of the abrasive-containing adhesive 1 of the present invention.

  At this time, the polishing wrinkles generated when the abrasive 3 of the abrasive-containing adhesive 1 of the present invention is rough-polished on the adhesive surfaces 4a and 5a of the adherends 4 and 5 are the adherends. During the sliding operation between 4 and 5, the abrasive-containing adhesive 1 of the present invention is involved, so that it is possible to prevent the polishing flaws from remaining on the adhesive surfaces 4a and 5a of the respective adherends 4 and 5. Is done.

  Further, since the polishing pad is made of the same material as each of the adherends 4 and 5, there is a possibility that the adhesive strength of the adhesive component 2 of the abrasive-containing adhesive 1 of the present invention is lowered by the entrainment of the polishing pad. Absent.

  Furthermore, since the roughening process and the cleaning process similar to the conventional ones on the bonding surfaces 4a and 5a of the adherends 4 and 5 are not necessary, The possibility of moisture remaining can be prevented.

  Furthermore, when the adhesive component 2 of the abrasive-containing adhesive 1 of the present invention is cured, the abrasive 3 and the abrasive wrinkle function as aggregates. Adhesive strength can be increased.

  In addition, the abrasive 3 in which the layer thickness of the abrasive-containing adhesive 1 of the present invention disposed between the adhesive surfaces 4a and 5a of the adherends 4 and 5 is mixed with the adhesive 1 is used. Based on the particle size of the adhesive, the adhesive layer 2 can be adjusted to a predetermined adhesive layer thickness that provides the optimum adhesive strength.

  In addition, even if a slight convex portion initially exists on the bonding surfaces 4a and 5a of the respective adherends 4 and 5, the convex portion is formed during the sliding operation between the respective adherends 4 and 5, Since it is scraped by the abrasive 3, the layer thickness of the abrasive-containing adhesive 1 of the present invention between the adhesive surfaces 4a and 5a is not affected.

  As described above, with the abrasive-containing adhesive of the present invention, it is possible to obtain a strong adhesive force between the adherends 4 and 5.

  In particular, when a plastic having a smooth surface is used as the adherend, it is usually difficult to obtain a strong adhesive strength even when an adhesive is applied to the surface as it is. By applying the bonding method using the contained adhesive, an effect of efficiently increasing the bonding strength can be expected in a state where a significant increase in labor is suppressed.

  Further, as described above, since the same roughening process and cleaning process for the bonding surfaces 4a and 5a of the respective adherends 4 and 5 are not required, it is accompanied by the bonding of the respective adherends 4 and 5. By simplifying the work process, the labor required for the bonding work can be reduced.

  Furthermore, if the pressing force is applied manually at the time of the sliding operation between the adherends 4 and 5, no special device is required and the human work can be performed in the field work. A favorable pressing force can be applied.

  Furthermore, the areas where the roughening is performed by the sliding operation on the adherends 4 and 5 are limited to the range in which the bonding surfaces 4a and 5a are moved during the sliding operation. The area where the roughening is performed other than the bonding surfaces 4a and 5a can be narrowed, and the effect of reducing the possibility of the appearance being deteriorated can also be expected.

  In addition, this invention is not limited only to the said embodiment, The thickness dimension of the to-be-adhered materials 4 and 5 shown to FIG.1 and FIG.2, the layer thickness of the abrasive-containing adhesive 1 of this invention, The particle size of the abrasive 3 is a convenient size for illustration, and does not reflect the actual dimensions of each.

  In addition, the adhesive method of the present invention and the abrasive-containing adhesive used in the implementation of the adhesive method are illustrated as long as they are bonded portions of a certain type in which a plurality of adherends are bonded via an adhesive. The present invention can be applied to any type of bonded portion other than the above, and further to bonding of metal adherends.

  Of course, various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Abrasive-containing adhesive 2 Adhesive component 3 Abrasive 4 Adhering material 4a Adhesive surface 5 Adhering material 5a Adhesive surface

Claims (1)

Adhesive formed by mixing an abrasive with an adhesive component is applied to one or both of the adhesive surfaces of the two adherends to be joined, and the adhesive surfaces of the adherends are combined, while lapping process in a state in which the action of pressing force in a direction for mutually pressed together to adherend is polished adhesive surface of the adherend by the abrasive, then between the abrasive on both adherend to function as a spacer, the distance between the adherends to cure the adhesive component of the abrasive-containing adhesive as the distance the particle size of the abrasive, bonding of each adherend by the adhesive ingredients cured A bonding method characterized in that the surfaces are bonded together.

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