摘要:
A tubular resin connection structure is disclosed that includes a resin connector and a resin tube. The resin tube is fixedly coupled to one of the first and second ends of the resin connector in a fluid-tight manner by a weld disposed between the resin connector and the resin tube. Preferably, one end of the resin tube is inserted into a molding die and a portion of the resin connector is welded to the resin tube by overmolding the resin of the resin connector during injection molding. In other words, the weld between the resin connector and the resin tube is formed overmolding a resin of the resin connector over the resin tube to simultaneously the mold the resin connector and form the weld between the resin connector and the resin tube.
摘要:
Described is a method of treating or coating homogeneously at least a portion of the surface of a material selected from metallic materials having a thickness of less than 100 nullm and/or polymeric materials. The method of the present invention comprises exposing at least a portion of the surface of the material to an atmospheric plasma generated by an indirect plasmatron. In the method of the present invention, the surface of the material may undergo at least one of an increase in surface tension, a surface grafting, a surface cleaning and a surface sterilization.
摘要:
A method of repairing the insulation of a subsea insulated pipeline which includes the use of an induction heating coil placed around the insulated pipe in the vicinity of an insulation defect. An electric current is provided to the induction heating coil which heats the pipe and melts the surrounding thermoplastic insulation, and thereby repairs and seals the insulation defect.
摘要:
A hub assembly for a catheter tube having a lumen therethrough. The hub assembly includes a hub portion having a proximal end and a distal end, and an integral connector disposed at the proximal end. A lumen is defined through the hub portion extending from the proximal end to the distal end. The strain relief includes a proximal end and a distal end is disposed at the distal end of the hub portion. The proximal end of the strain relief can be integrally connected to the distal end of the hub portion. The strain relief is preferably more flexible than the hub portion. The strain relief defines a passage configured to receive the catheter such that a lumen through the hub portion is in fluid communication with the catheter tube lumen.
摘要:
A process for the manufacturing of a pressure vessel made from a thermoplastic material or a thermosetting resin. The vessel comprises a first and a second vessel end part, and possibly an intermediate tube part. The vessel end parts include a circumfering shell (4) and each one dome (3). A number of partition and load distributing walls (5) stretch from the domes (3) towards the open part of each vessel end part. The possible intermediate tube part includes similar walls (5). The edges of the walls (5) will meet when the different parts are joined. A number of cells (6) are formed between the walls (5). A number of crossing areas are formed between intersecting walls (5). At least one crossing area is provided with a determination by achieving a hole (14) from the outside of the dome. The hole (14) is bigger than the crossing area and has a depth greater than thickness of the dome part (3).
摘要:
A process for producing a radiator support, disposed between a radiator and a vehicle-side installation member, includes the steps of molding a rubber-elastic member, disposing the resulting rubber-elastic member in a mold, and completing a radiator support by injecting a resinous material into the mold. In the rubber-elastic member molding step, a rubber-elastic member is molded to include a rubber flange which has a top surface and a bottom surface. In the radiator support completing step, a rigid inner tube member and a rigid outer tube member are molded integrally with the rubber-elastic member, wherein the rigid outer tube member is molded so as to include a flange which has a top surface superimposed on the bottom surface of the rubber flange of the rubber-elastic member, a bottom surface, and a cut-off. The cut-off downwardly exposes a portion of the bottom surface of the rubber flange of the rubber elastic-member in a completed radiator support. In the radiator support completing step, the downwardly-exposed portion of the rubber flange of the rubber-elastic member is held by the mold. Hence, it is possible to effectively inhibit the rubber-elastic member from being put out of position in the mold, and from being deformed by the injection pressure of the resinous material.
摘要:
A composite tube for use in such applications as an automobile heater hose has inner and outer tubes. The inner tube has a corrugated central section and cylindrical end portions. The outer tube is bonded to the end portions of the inner tube and to the crests of the corrugations. The composite tube has spaced identical end couplings, each with a portion extending into and bonded to the associated inner tube end portion, an end part overlying and bonded to ends of the tube portions and an external flange surrounding and bonded to the reinforcing tube end portion. The couplings include circumferentially spaced end reliefs for facilitating connection of the coupling to a tube such as a fluid inlet to or outlet from an associated automobile radiator or the like. The composite tube is continuously formed in a known manner while the end couplings are molded with a novel and improved mold and process.
摘要:
A shaft assembly comprising an elongated member having at least a portion which is hollow, tubular, shell like having an inside surface defining a shaft core and an outside surface defining a shaft functional surface, the shaft core being filled with a hardened, moldable material, and the shaft functional surface having at least one functional feature thereon, which is of hardened, moldable material integrally molded with the hardened, moldable material in the shaft core. In a preferred embodiment the shaft assembly is rotatable and has at least one molding aperture gate extending through the shaft from the inside surface to the outside surface which is filled with hardened, moldable material which connects the hardened material in the shaft core and functional feature, the tubular shell like member having a helical pattern cut through from the inside surface to the outside surface in that portion adjacent the at least one aperture gate and underneath the at least one functional feature to enable the portion to be flexible and deformable when placed under pressure against a surface.
摘要:
The invention describes an apparatus for the integral injection molding of a synthetic plastic top on a paper tube with an overall injection molding unit with a nozzle, a driven extruder worm (4), plasticising cylinder and a synthetic plastics injection unit, the nozzle being connected to the plasticising cylinder and being enclosed at least partially and externally by two movable outer mold parts, the inner mold part consisting of a movable mandrel.To reduce the technical complication while at the same time satisfying more fully the hygiene demands imposed on such machines, particularly in the foodstuffs sector, it is according to the invention suggested that the plasticising cylinder and the nozzle be stationary in their mountings on the machine frame and that the extruder worm be driven by an electric motor and that the synthetic plastics injection device comprise a two-armed lever which is driven and which is subject to the action of a control force unit and which is in contact with the extruder worm adapted for movement in the direction of its longitudinal axis.
摘要:
A tube container molding apparatus in which a cylindrical tube is inserted into a split mold in its closed state so that the end section of the tube comes into contact with a cavity face of the split mold. A core is then advanced to fit into the tube from its rear end, and finally a resin melt is introduced into the cavity formed by the cavity face of the split mold and the end face of the core.When the resin melt is injected into the cavity, a tube holding piece pushes the tube against the core to prevent the tube from being drawn out of the cavity.Midway during the advance of the core into the tube, the tube is held by the tube holding piece and the further advance of the tube is made together with the core. Thus, the forward end section of the tube is bent inward to a prescribed width.