摘要:
The use is disclosed of modified polyesters, for example isophthalic acid modified polyethylene terephthalate in high frequency welding. The process is useful for incipient or complete melting of shaped structures, especially sheets, films, coats, hollow articles, injection-molded articles, yarns and textile sheet materials comprising such yarns , composed of such polyesters. The process can be carried out with customary high frequency welding equipment.
摘要:
The invention relates to a dimensionally stable gauze three-dimensionally deformed by deep drawing, which is based on a flat-shaped resin-coated textile material capable of being deep drawn, the open meshes of which are formed from the meshes, extended by deep drawing, of a woven fabric or of a knitted fabric, and which has a metallized surface. The surface metal coating has a thickness of up to 300 .mu.m and consists of one or more layers. Various applications and a process for the manufacture of this gauze are also described.
摘要:
A sheet-like sandwich molding having two outer firm rigid covering layers and, as the core, at least one sheet-like structure of fiber material, which has been deformed by deep-drawing and been provided with synthetic resin. The sheet-like structure of fiber material, constituting the core, can, for example, be a knitted fabric provided with a curable condensation resin.
摘要:
A honeycomb material is disclosed whose walls are formed from a network of a porous fiber composite, said composite being a reinforcing yarn embedded in a resin matrix.
摘要:
A heavy duty rubber composite has a reinforcement structure composed of a network material made from a three-dimensionally shaped textile material forming an open-mesh three-dimensional network which penetrates the rubber material three-dimensionally in a skeleton-like manner. The network material is advantageously firmly incorporated into the rubber composite by appropriately linking the network material with the other reinforcements present in the rubber composite.
摘要:
The heat exchanger comprises a support frame, a feed line, a header for forward flow, heat exchange tubes, a header for the return flow and a discharge line for the heat exchange medium. The heat exchange tubes are here helical capillary tubes. They are fixed interlocking one another by means of connecting elements. The ends of the heat exchange capillaries lead into the forward flow header and into the return flow header for the heat exchange medium.
摘要:
Described is a support for electrodes of primary or secondary electric cells, said support comprising an open-mesh, three-dimensional network structure composed of plastics threads coated unbrokenly with one or more efficiently conducting, thin metal coats and, to form the three-dimensional structure, being provided with humplike depressions and/or elevations which are distributed over its surface and in whose region the distance between the plastics threads is increased, wherein at least the outer metal coat of the plastics threads consists of a valve metal. Also described are electrodes comprising such a support and a process for producing the articles mentioned.
摘要:
A heavy duty rubber composite having a reinforcement structure is described, wherein the reinforcement structure is composed of a network material made from a three-dimensionally shaped textile material forming an open-mesh three-dimensional network which penetrates the rubber material three-dimensionally in a skeleton-like manner.
摘要:
A heat exchanger element consists of a double fabric web coated on both sides, the distance between the face fabric and the back fabric of which is maintained by binder filaments. This double fabric web is provided with a feeder duct and discharge duct for liquid and gaseous media. The heat exchanger element is used as heat absorber or heater element. It is distinguished by its flexibility. As heater element, it may be doubled with carpet material or used as wall-to-wall carpet.
摘要:
An electrode for primary or secondary electric cells comprises a support and an active material, the support being an electrically conductive network material which extends skeletally throughout the active material.