摘要:
A component such as a vehicle exterior part having a transparent area without creating gaps is produced by introducing a hole into a film for the transparent area, inserting the film into a component mold, and then back-molding the same with a transparent plastic material in the mold such that the hole is filled with the transparent plastic material.
摘要:
Recently, at least some parts of exterior components of vehicles have been made of plastic as well by back-molding lacquer films with plastic. A large number of such exterior components require transparent areas which are produced separately and are inserted into die-cut zones of the component. Said method requires a lot of effort while joints are difficult to prevent. The aim of the invention therefore is to create a component that can be produced in a simpler manner and without creating gaps as well as an adequate method for the production thereof. Said aim is achieved by introducing a hole into the film for the transparent area, inserting said film into the component mold, and then back-molding the same with a transparent plastic material in the mold such that the hole is filled with the transparent plastic material.
摘要:
The invention relates to a panel part of the outer panel or inner panel of a motor vehicle. Said panel part comprises a base body (10) at least partially consisting of a transparent plastic material (12) carrying at least one solar module (16), the plastic material entirely surrounding the solar module (16) in a form-fitting manner, at least on the sun-facing side or the outer side of the panel part. The sun-facing side or outer side of the panel part is covered, at least in sections, by an essentially opaque and/or coloured covering layer (14) comprising a recess (18) associated with the solar module, in the arrangement region of the solar module (16).
摘要:
The invention relates to a motor vehicle body, the support structure (10) of which is composed of large-size partial modules (12, 34, 50, 66), a basic module (12) comprising lateral longitudinal members (15) and a body floor (14) and reaching laterally as far as front wall columns (20), and, when the support structure (10) is assembled, the basic module (12) being connected to a front end module (34) which belongs to the front crumple zone of the motor vehicle and is supported in a crash stable manner on the basic module (12). In order to provide a motor vehicle body, in which the front end module (34) even without a roof construction is fixed in a sufficiently stable manner on the basic module (12), a front end region (36) of the body floor (14) belongs to the front end module (34) and extends rearward over a considerable length region of the basic module (12) between lateral longitudinal member sections (16).
摘要:
The present invention relates to a muffler for an exhaust system of an internal combustion engine having an exhaust gas-carrying first pipe which is connectable to a first exhaust line of the exhaust system or forms an integral component of the first exhaust line, and an exhaust gas-carrying second pipe which is connectable to a second exhaust line of the exhaust system or forms an integral component of the second exhaust line. To design the muffler to be as compact as possible, a housing of the muffler includes a damper space situated between the pipes and has two longitudinal side walls each formed by a wall section of one of the pipes that is permeable for airborne sound.
摘要:
A reactive sound attenuator which includes a sensor for detecting a sound parameter in a space, e.g. a duct, consists of a signal amplifier that is used to amplify a detected signal, an electroacoustic transducer and a cavity with at least one membrane. The membrane, which is capable of moving in a vibratory manner, is part of a wall of a space, e.g. a duct wall. A sensor, which is disposed in the immediate vicinity of, in or on the membrane, detects the vibrations of the membrane. The sensor's signal, which is amplified and inverted by the amplifier, controls the membrane vibration via the electroacoustic transducer.
摘要:
The invention relates to a controlled acoustic wave guide configured as an elongated hollow chamber (1) which via an opening (2) in its first face end (3) is connected to a sound-conducting channel (4). The longitudinal resonances of the hollow chamber (1) can be adjusted to a sound spectrum to be dampened. To this end diaphragm vibrations are detected by means of a microphone (10) which is positioned directly in front of the diaphragm (8) of at least one loud-speaker (9) at the second face-end (6) of the hollow chamber (1). The microphone signal is then inverted using an amplifier (11) and fed back to the loud-speaker (9) after amplification in accordance with a sensor (12) signal characterizing the sound spectrum in the channel (4).
摘要:
A three-dimensionally shaped body module component and a method for the production thereof, which is assembled from a plurality of body module segments (1). The body module segments (1) are sections of continuously pultruded fiber plastic composite pultrudates, wherein each pultrudate has a basic structure consisting of endless fibers (20) laid in accordance with the force flux with respect to a predetermined geometry of the component. Furthermore, the basic structure has at least one passage (30) per body module segment (1) for receiving a connecting means (11), so as to connect at least two of the body module segments (1). The fibers (20) laid in accordance with the force flux are laid around the passage (30), and, furthermore, a stabilization structure (40) made from fibers is arranged around it.
摘要:
A three-dimensionally shaped body module component and a method for the production thereof, which is assembled from a plurality of body module segments (1). The body module segments (1) are sections of continuously pultruded fibre plastic composite pultrudates, wherein each pultrudate has a basic structure consisting of endless fibres (20) laid in accordance with the force flux with respect to a predetermined geometry of the component. Furthermore, the basic structure has at least one passage (30) per body module segment (1) for receiving a connecting means (11), so as to connect at least two of the body module segments (1). The fibres (20) laid in accordance with the force flux are laid around the passage (30), and, furthermore, a stabilisation structure (40) made from fibres is arranged around it.
摘要:
A reactive hot melt composition, having a softening point of at least 50° C., and being curable on heating to a temperature of 150° C. The composition comprises a blend of (a) a macrocyclic oligomer having a softening point of at least 50° C., containing at least one ring having eight or more atoms, and being able to undergo decyclization at a temperature of 150° C. or more, to produce a polymerizable species, wherein each cyclic oligomer molecule provides two or more structural repeat units of the same or different formula for the resulting polymer, and (b) a thermoplastic resin, its use as an adhesive and methods of its application.