摘要:
An electrofusion coupling (10) member made of a thermoplastic substance having aluminum particles incorporated therein and further comprising an electric resistance heating element (14) disposed therein, an electrofusion coupler device which includes the same, and a method for welding the device to other thermoplastic objects are provided herein.
摘要:
A sealed packing body comprising a packing body made from a laminated material and a sealing member for sealing the packing body; wherein the laminated material includes a base material layer, a thermoplastic resin layer containing an iron powder, and a thermoplastic resin layer which permits a laser beam to pass through, at least the surface of the sealing member which comes in contact with the packing body comprising a thermoplastic resin which permits the laser beam to pass through; and the surfaces of the packing body and the sealing member coming in contact are sealed together by laser welding. It is, therefore, allowed to effectively utilize the iron powder that has, heretofore, been utilized as an oxygen absorber of the packing containers and to efficiently conduct the laser welding.
摘要:
Methods of facilitating the adhesive bonding of various components with variable frequency microwave energy are disclosed. The time required to cure a polymeric adhesive is decreased by placing components to be bonded via the adhesive in a microwave heating apparatus having a multimode cavity and irradiated with microwaves of varying frequences.
摘要:
Methods of facilitating the adhesive bonding of various components with variable frequency microwave energy are disclosed. The time required to cure a polymeric adhesive is decreased by placing components to be bonded via the adhesive in a microwave heating apparatus having a multimode cavity and irradiated with microwaves of varying frequencies. Methods of uniformly heating various articles having conductive fibers disposed therein are provided. Microwave energy may be selectively oriented to enter an edge portion of an article having conductive fibers therein. An edge portion of an article having conductive fibers therein may be selectively shielded from microwave energy.
摘要:
PCT No. PCT/GB93/00670 Sec. 371 Date Sep. 29, 1994 Sec. 102(e) Date Sep. 29, 1994 PCT Filed Mar. 31, 1993 PCT Pub. No. WO93/19925 PCT Pub. Date Oct. 14, 1993A conductive polymer wraparound sleeve is used to enclose a joint between district heating pipes. It is wrapped so that longitudinal edges thereof overlap, and it acts as a source of heat to seal the overlapping longitudinal edges. Elongate electrodes, preferably metal bars provided on a carrying strip, are positioned along the overlap and connected to a power source to cause electrical current to flow circumferentially across the overlap region to cause bonding of the overlap.
摘要:
A process for joining a first kind of synthetic resin (1, 101) to a second kind of synthetic resin (2) includes several steps. A first step is providing the first kind of synthetic resin (1, 101), which may include fillers (102), e. g., glass fibers. A second step is setting a second contact surface (21) of the second kind of synthetic resin (2) on a first contact surface (11) of the first kind of synthetic resin (1, 101). A third step is exposing an outer surface of the second kind of synthetic resin (2) to a laser beam. The second kind of synthetic resin (2) transmits the laser beam to the first kind of synthetic resin (1, 101 which stores up heat of the laser beam. The second contact surface (21) of the second kind of synthetic resin (2) and the first contact surface (11) of the first kind of synthetic resin (1, 101) are melted by the heat of the laser beam. A plurality of projections and a plurality of recesses are formed on both the first contact surface (11) of the first kind of synthetic resin (1, 101) and the second contact surface (21) of the second kind of synthetic resin (2). A plurality of the projections of the first kind of synthetic resin (1, 101) engage with a plurality of the recesses of the second kind of synthetic resin (2). If fillers (102) are provided, at least some of them (102) will extend between the first and second synthetic resins (1, 101, 2). Accordingly, the second kind of synthetic resin (2) is securely joined to the first kind of synthetic resin (1, 101).
摘要:
An electrofusion coupling member (10) made of a thermoplastic substance having metallic particles incorporated therein and further comprising an electric resistance heating element (14) disposed therein, an electrofusion coupler device which includes the same, and a method for welding the device to other thermoplastic objects are provided herein.
摘要:
Method for producing an inner cladding part for vehicles by lamination of a first, preferably flexible material layer (40), having an upper side (42) and an underside (41), onto a preferably dimensionally stable carrier (30), having a preferably three-dimensional surface contour (31), the method comprising the following steps: supplying the carrier (30); positioning the underside (41) of the material layer (40) on the surface contour (31) of the carrier (30), wherein a thermally activatable adhesive (52) has been applied to the underside (41) of the material layer (40) and/or the surface contour (31) of the carrier (30), wherein carbon nanotubes, forming a heating device, are in contact with the adhesive at least in one sub-region; heating the adhesive in the sub-region by applying a voltage to the carbon nanotubes, as a result of which the adhesive is activated; compressing the material layer (40) and the carrier (30).