摘要:
A method of providing, by high-frequency welding of at least two construction parts (4,4′) containing polymer material weldable by high-frequency welding to an assembled large unit in which said construction parts are comprised, fastener means (1) on said unit, said fastener means being intended for anchoring and building up said unit. The fastener means (1) are made of an electrically conductive material, and a primer layer (2) is arranged on a surface of the fastener means (1) and is bonded by means of a first hardening. A material weldable by high-frequency welding is arranged on top of said primer layer and is bonded thereto by means of a second hardening for building up a connecting layer (3). The invention also relates to anchoring parts (5) for use for that purpose.
摘要:
A plurality of thermoplastic articles are superimposed against a support, an infrared transparent solid is superimposed to form a superimposed body and infrared is irradiated to the superimposed body from the side of the infrared transparent solid. For the irradiation source, an Er: YAG laser or fiber laser is used. The interface temperature of the thermoplastic article becomes relatively lower and a high temperature region can be developed within the superimposed body due to the infiltration of laser energy. As a result, degradation of the surface configuration due to thermal damages in the infrared irradiation side surface layer of the thermoplastic articles can be suppressed.
摘要:
An electrical cable of the present invention comprises a plurality of spaced, parallel flat conductors. Each of the plurality of flat conductors was previously integral with each immediately adjacent flat conductor. A dielectric material is holds the conductors in the spaced, parallel relationship. The dielectric material can be a polymer film, a nonwoven, or other polymer materials such as PTFE, or expanded PTFE. The cable of the present invention is made by providing first and second webs of dielectric materials and a third sheet of conductive material. The first and second web materials are bonded to the third sheet of conductive material in a face-to-face layered relationship thereby forming a bonded laminate. The bonded laminate is then incrementally stretched to separate the sheet of conductive material in to spaced, parallel flat conductors.
摘要:
A method of manufacturing a plate-like body formed of first and second members stuck together through liquid includes the steps of (a) applying the liquid on a surface of the first member and (b) feeding gas between the first and second members at an instant of initial contact of the liquid with the second member when the second member is superimposed on the first member.
摘要:
A process for the continuous preparation of non-expanded honeycomb core from non-precorrugated web involves the progressive corrugation and consolidation of web by a corrugating/consolidating unit containing corrugating and consolidating elongate teeth which traverses a bed unit containing sets of former bars, forming a half cell height of honeycomb at each pass. A plurality of node-antinode demes of the topmost half cell layer being formed are consolidated while new corrugations and associated node-antinode demes are being formed. The process allows for more lengthy consolidation time, a smaller temperature differential between consolidating teeth and the node-antinode demes being consolidated, and further allows the corrugating and consolidation temperatures to be substantially independent of each other. The process may be implemented through use of a corrugating/consolidation unit having a travelling belt containing corrugating and/or consolidating teeth which may be individually and selectively heated. The process and apparatus allows production of honeycomb even from thin thermoplastic web materials at high production rates. In a preferred embodiment, the teeth are radiant energy transmissive teeth associated with a source of radiant energy directed through the teeth toward the bottom, node-antinode contacting face.
摘要:
The coating of a RF active material on a non-RF active substrate material of typical thickness for packaging purposes, can generate sufficient thermal energy to effect strong bonding of the substrate materials. The RF active material may be deposited on less than the entire inner surface area of the substrate material, preferably, at or near the portion of the substrate surface which represents the heat seal interface. In this manner of application, additional coating or printing of other substances on the substrate surface can be achieved without hampering the heat sealing process. Flexible medical containers capable of containing a product which is maintained and removed under sterile conditions, can be constructed on commercial production machines from these coated non-RF active substrate materials.
摘要:
A process is disclosed for the fabrication of a thermoplastic container having a lid bonded thereto. The container and lid are formed from laminated thermoplastics wherein at least one of the layers that forms the laminate is dielectrically heatable. The heatable layers of the cup and lid are placed in contact with one another, dielectrically heated, and melt together to form a continuous bonded area or lid seam between the cup and lid. The materials of the cup and lid are selected such that the resultant bonded area forms an exygen barrier between the contents of the container and the outside environment. The strength of the bonded area is selected such that the lid may be manually-removed from the container.
摘要:
This invention relates to an improvement in the method of manufacturing alate medical needles. The base part of a needle is inserted into a thermoplastic resin tube and the inserted portion is set in a wing-forming mold. The thermoplastic resin is heated to mold wings integral with the tube. Since the molding of the wings and their connection to the tube can be accomplished simultaneously, this method enables high-speed continuous manufacture which is impossible with conventional methods. Heating of the thermoplastic resin is preferably conducted by high-frequency dielectric heating.
摘要:
A novel slipper and its method of fabrication is described. The slipper comprises a substantially flat sole member with die-cut bounding edges onto which is heat-sealed an overlying arc-shaped vamp. The novel method is characterized by pre-tacking vamps at predetermined locations to a sole web, and substantially simultaneously heat-sealing each vamp to a sole and die-cutting the bonded sole and vamp from the sole web.