Abstract:
PROBLEM TO BE SOLVED: To provide a technique for increasing bonding strength between a metal and an adherend with an adhesive and in particular to increase the bonding strength by adding a minute fibrous material which penetrates micrometer-order recesses and protrusions formed in a metal surface. SOLUTION: Metal alloy induces tenacious adhesion strength between the metal alloy and the adherend by compatibility with an epoxy adhesive. This technique enables a bonded structure of the metal alloy and a CFRP (Carbon Fiber Reinforced Plastic) to be produced with the epoxy adhesive. In order to further improve bonding strength between the metal alloy and the CFRP, carbon nanotubes are added to the epoxy adhesive. As a result, the carbon nanotubes penetrate the micrometer-order recesses and protrusions formed in the metal alloy surface to improve the adhesion strength. Thus, a member constituted of the metal alloy and the CFRP tenaciously adhered thereto is obtained. This member is extremely lightweight despite the high adhesion. By using the metal alloy to constitute an end part of the member, the member and another part can be easily assembled/disassembled with a bolt and nut or the like. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a heat-resistant endless belt less in degradation of adhesive strength even if heated to a high temperature, high in strength of a joint part at 190°C and having no influence on an image caused by the joint part in the case of being applied to an image forming apparatus.SOLUTION: The method for manufacturing a heat-resistant resin belt includes an inclined thin-walled part forming process for forming inclined thin-wall parts at both ends of a heat-resistant sheet, an adhesive applying process for applying an adhesive composition to the inclined surfaces of the inclined thin-walled parts by a screen printing method, a sticking process for sticking the inclined surfaces to each other, and an adhesive curing process for curing the adhesive composition. An additive polymerized silicon adhesive composition containing 6.5-9.9 wt.% ferric oxide (III) in a solid component is used as the adhesive composition. A viscosity at 23°C before curing the additive polymerized silicon adhesive composition is 50-100 Pa s, and an elongation when cutting in a tension test after curing the adhesive composition is 250% or more.
Abstract:
PROBLEM TO BE SOLVED: To provide a joined body which is excellent in dimensional accuracy and can be easily produced without causing problems to be caused in a solid joining method and to provide a joining method for obtaining the joined body. SOLUTION: The joined body has a first base material 21, a second base material 22 and a joining film 3 for joining the joint surface 23 of the first base material 21 to the joint surface 24 of the second base material 22. The joining film 3 comprises a silicone material. The first base material 21 is joined to the second base material 22 by the adhesion expressed in the surface area of the joining film 3 by imparting joining energy to at least a partial area of the joining film 3. A gap material 32 having a function of regulating a distance between the first base material 21 and the second base material 22 is arranged on the joining film 3. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PURPOSE:To enable a connection between a FRP pipe and FRP joint, by making use of an adhesive agent obtained by mixing necessary quantity of glass flakes with either unsaturated polyester resin or vinyl ester resin. CONSTITUTION:An adhesive agent is an article obtained by mixing glass flakes with thermosetting resin. The thermosetting resin is unsaturated polyester resin and vinyl ester resin and 20-40wt% glass flakes are mixed with these resin. As for procedure connecting a FRP pipe 1 and FRP joint with each other, an end face of the FRP pipe 1 is chamfered at a necessary angle, to begin with, and after a necessary quantity of adhesive agent 4 has been applied to the chamfered pat 3, the chamfered part 3 is inserted into a socket 5 of FRP joint 2. As for the adhesive agent 4 applied to the chamfered part 3, a part of the same covers the chamfered part 3 of the FRP pipe 1 while it is being extended thin between an inner wall of the socket of the FRP joint 2 and the chamfered part 3 and the other part is bonded to the inner wall of the soceket of the joint 2 with pressure.
Abstract:
PURPOSE:To attach appropriate amount of resin to desired points of a material by attracting magnetic particle-mixed resin on the surface of a material with a magnet arranged on the back thereof. CONSTITUTION:Magnets 4 in a specified shape and arrangement are brought into contact with the receiving surface and the opposite of a material (e.g. delay medium comprising glass with an ultrasonic delay line). Then, this material approaches a powdered resin 5 (e.g. mixture of epoxy resin and silica) blended with a magnetic powder (e.g. Ni) so that the resin 5 is attached to desired points of the surface thereof. Then, the resin 5 attached is hardened securely on the material 1 by heating at about 80-160 deg.C.