摘要:
Hot melt adhesives include a thermoplastic terpolymer of vinylidene fluoride, tetrafluoroethylene and hexafluoropropylene and a terpolymer of glycidyl methacrylate. The adhesives will bond well to a variety of substrates, in particular substrates of very low surface energy such as polytetrafluoroethylene (PTFE).
摘要:
A method of joining a thermoplastic material to a thermoset material, and a resultant thermoplastic-thermoset composite formed from such method are provided. At least one of the thermoplastic material and the thermoset material includes particles that melt when the thermoplastic material and the thermoset material are heated during the joining operation. The particles further produce a solid bond between the materials after the particles have solidified in the course of cooling after the joining operation.
摘要:
The object is to provide a writing instrument and a welding method of a writing point assembly as well as writing instrument parts connecting structure and connecting method, wherein the writing point assembly and an ink tube or/and a holder can be welded appropriately at a necessary area only without using ultrasonic waves, so as to be able to prevent dislodging of the writing point assembly, ink leakage and the like. The rear end part, of a metallic writing point assembly as a part of a writing instrument, which is inserted into a joint, is heated at the predetermined area (at least the fitted area in contact with the front end part of the joint), so as to weld the predetermined area of the writing point assembly to the surrounding part of the joint.
摘要:
A spool which is used for holding windings of optical fiber includes a first portion having a first side wall flange and defining a first locating surface and a first welding surface. The spool further includes a complimentary second portion having a second side wall flange and defining a second locating surface and a second welding surface. The first and second locating surfaces are in engagement with one another and cooperating to orient the first and second portions such that the first and second side wall flanges are in a generally parallel arrangement with each other. The spool further includes a welding material disposed between the first and second welding surfaces for securing the first and second portions together.
摘要:
The invention relates to a method for welding a polyolefin plastic and a plastic based on at least one polymer containing carbonyl groups, using a primer which contains, in relation to the proportion of polymer in said primer, at least 20 wt. % of a polymer that comprises maleic anhydride or maleic anhydride derivative units. The invention also relates to correspondingly welded products.
摘要:
The invention relates to a method for bonding two different plastics using a primer. The two plastics which are to be joined to each other have a weighted quadratic distance between the Hansen parameter (Ra)2 of more 22 MPa and the primer contains a polymer which has a weighted quadratic distance between the Hansen parameter (Ra)2 of less than 22 MPa to both of the plastics which are to be joined. The invention also relates to correspondingly bonded products.
摘要:
An apparatus for fabricating a fiber reinforced thermoplastic composite structure is described. The apparatus comprises a localized heat source arranged to heat a portion of a stack of fiber reinforced thermoplastic material layers and an ultrasonic transducer arranged to locally introduce ultrasonic energy waves to the heated portion of the fiber reinforced thermoplastic material layers. The apparatus makes it possible to achieve ultrasonic consolidation of the layers occurs.
摘要:
A system and apparatus relating to connecting at least one first longitudinal periphery of at least one first magnetic sheet with at least one second longitudinal periphery of at least one second magnetic sheet by placing such first longitudinal periphery in adjacent relationship with such second longitudinal periphery; and connecting such first longitudinal periphery in adjacent relationship with such second longitudinal periphery; wherein such connecting step comprises the step of unitizing such at least one first magnetic sheet and such at least one second magnetic sheet into one unitary magnetic sheet.
摘要:
An introducer assembly includes a sheath having a sheath proximal end and distal end, and a passage therethrough. The introducer assembly further includes a handle assembly that is mechanically and/or bonded coupled with a tubular sheath.