摘要:
The invention relates to a method and an apparatus for welding thermoplastic molded articles wherein additional simultaneous irradiation, in the welding area (18), of one of the join partners (1) will lead to a temperature increase of this join partner, occasioning process-reliable welding.
摘要:
In a method and an apparatus for irradiation welding of two thermoplastic components, a local temperature maximum, which circulates together with the laser beam and increases from cycle to cycle, and a correspondingly circulating, locally increased clamping pressure are generated in the area of joining.
摘要:
A compact arrangement for multipole, surge-protected surge arresters, including internally wired, encapsulated series gaps arranged essentially in parallel in a housing. The series gaps have opposite-lying, projecting contact surfaces connected to outer terminals and inner contact bars or bridges. An electronic control or trigger circuit is located on a wiring support. The housing includes dividing walls and has a trough shape, the resulting housing chambers accommodating the gaps and terminals. An insulating plate with openings into which spring contact elements are introduced is provided on the housing trough which opens upwards. Located above the insulating plate is the wiring. The spring contact elements create the electrical connection between contact points on the underside of the wiring support and the cover of one of the series gaps, respectively. Further, an encapsulated surge protector includes a series gap arrangement with two metallic main electrodes lying coaxially to each other and at least partially overlapping each other and having connections in opposite directions. The main electrodes form an arc chamber in conjunction with at least one insulation part. At least one of the main electrodes has an inner expansion chamber and a trigger electrode extending preferably radially or axially rotationally symmetrically is provided at least in the area of an outer insulation part.
摘要:
A roller bearing cage for guiding rolling bodies in a rolling body bearing, which has multiple rolling bodies, two cage side elements, between which the rolling bodies are arranged, and which have multiple web appendages to guide the rolling bodies, and multiple connection elements that connect the two cage side elements. The azimuthal position of the connection elements defines a connection area. Exactly one connection element and at least one web appendage are arranged in a connection. The connection element and web appendage are arranged in sections inside a radial interior of the respective cage side elements, the border of which is defined by the positions of the rotation axes of the rolling bodies.
摘要:
The invention relates to a method and an apparatus for welding thermoplastic molded articles wherein additional simultaneous irradiation, in the welding area (18), of one of the join partners (1) will lead to a temperature increase of this join partner, occasioning process-reliable welding.
摘要:
In a method and an apparatus for irradiation welding of two thermoplastic components, a local temperature maximum, which circulates together with the laser beam and increases from cycle to cycle, and a correspondingly circulating, locally increased clamping pressure are generated in the area of joining.
摘要:
A spark-gap arrangement encapsulated in a pressure-proof housing, for diverting harmful disturbances due to overvoltage, including at least two electrodes disposed substantially opposite one another in a housing that is conductive or provided with a conductive coating, between which a discharge space is formed and which are insulated from the housing. In accordance with the spark-gap arrangement a trigger voltage to form a subsidiary spark gap in the discharge space can be applied directly by the conductive housing, so that by the subsidiary spark gap the main spark gap between the main electrodes can be ignited.
摘要:
A roller bearing cage for guiding rolling bodies in a rolling body bearing, which has multiple rolling bodies, two cage side elements, between which the rolling bodies are arranged, and which have multiple web appendages to guide the rolling bodies, and multiple connection elements that connect the two cage side elements. The azimuthal position of the connection elements defines a connection area. Exactly one connection element and at least one web appendage are arranged in a connection area. The connection element and web appendage are arranged in sections inside a radial interior of the respective cage side elements, the border of which is defined by the positions of the rotation axes of the rolling bodies.