摘要:
Methods and systems are provided for heating a dielectric preform material. An exemplary method includes inserting the preform material into a microwave cavity along a longitudinal axis of the microwave cavity and supplying the microwave cavity with microwave power having a frequency that corresponds to an axial wavelength along the longitudinal axis of the microwave cavity. The axial wavelength is greater than a length of the preform material along the longitudinal axis. The method includes heating the preform material within the microwave cavity by the microwave power and determining temperatures of the preform material at one or more locations on a surface of the preform material. The method further includes adjusting, based on the temperatures of the preform material, the microwave frequency to achieve substantially uniform heating at least on a sidewall of the preform material along the longitudinal axis.
摘要:
Apparatus for heating plastic preforms, having a microwave generating device which generates microwaves, and having a resonator device which forms a receiving space into which the plastic preforms can be introduced so as to be acted upon by the microwaves in the resonator device in order to be heated, wherein the apparatus has a reflector element which is arranged at least partially in the receiving space and which is suitable and intended for conducting microwaves in the direction of a base region of the plastic preforms. According to the invention, the reflector element is movable relative to the receiving space and the apparatus has a drive device for moving the reflector element relative to the receiving space.
摘要:
A method for implementing a channel (56) includes providing a preform (20) having a recess (22) therein and heating a channel implementation element (30′) to a temperature greater than a melting temperature of a material of the preform (20). An external contour of the channel implementation element (30′) at least regionally corresponds to an internal contour of the channel (56) to be implemented. The method then moves the heated channel implementation and/or the preform (20) in relation to one another so that the heated channel implementation element (56) at least regionally moves into the recess (22) in a moving-in direction. The material of the preform (20) is at least partially melted in a region around the recess (20) and is at least partially displaced by the channel implementation element (30′), wherein at least a part of the channel (56) to be implemented is thus implemented.
摘要:
An apparatus for reheating and conditioning an elongate preform for forming a blow moulded container, said apparatus comprising: a receiver including an elongate annular non-cylindrical inner surface portion, wherein the surface portion defines a cavity and is adapted to engage with an elongate outer surface of an elongate preform to transfer heat thereto by conduction from said surface portion, wherein the surface portion includes a three-dimensional relief to provide substantially non-uniform contact between the receiver and the elongate preform; and means for heating said receiver.
摘要:
A heating device for tempering preforms before processing in a stretch blow device. The heating device includes a heating alley with a plurality of infra red emitters, arranged parallel to the longitudinal axis of the tempered preforms. At least one back reflector and/or one filter is assigned to the infra red emitters, whereby the at least one back reflector and/or the at least one filter is segmented.
摘要:
Installation for heating the bodies (1) of thermoplastic preforms (2) with a view to manufacturing containers by blow-molding or stretch-blow-molding, while the preforms (2) are being moved along with their bodies (1) following a predetermined path (T), this installation comprising at least one directional source (5) of electromagnetic radiation directed towards a location (E) on the path (T); the source (5) is inclined by an angle (α) of between about 60° and 10° and preferably less than about 45°, with respect to the tangent (6) to the path (T) at the location (E); thus, the electromagnetic radiation can pass through several preform bodies or parts of bodies without being appreciably reflected back towards the source (5).
摘要:
A rotary furnace for conditioning performs includes a heating wheel, a plurality of heating modules disposed on the heating wheel and a control device. Each heating module includes a heating chamber including at least one heating radiator adapted for irradiating the preform with infrared radiation, a holding and lifting device configured to lift or lower at least one of the preform and heating chamber so as to introduce the preform into the heating chamber and/or withdraw the preform from the heating chamber, and a temperature measurement device configured to measure a temperature of at least one of the preform and the heating chamber. The control device is configured to actuate the heating modules based on the measured temperature.
摘要:
An apparatus for heating at least one plastic preform for manufacturing containers may include a reflection body, a source of energy for emitting thermal radiation for heating the plastic preform, and a holding member for holding the plastic preform. The holding member may be moved relative to the reflection body, wherein the reflection body has a first surface allocated to the plastic preform and the source of energy is disposed in such a way that the radiation thereof reaches the reflection body. The reflection body may be constructed of at least two components, wherein a first component has the first surface which is at least partially transparent to the radiation emitted by the source of energy and which has a second structured surface on the side facing away from the first surface. At least a portion of the second component is capable of reflecting the radiation, and this second component abuts against the first component at least in sections.
摘要:
A preformed pallet is provided having first and second outer layers that sandwich a cellular or honeycomb shaped core. The peripheral edge of the preformed pallet may be inserted into the molding device having one or more heating elements, which function to focus heat onto the peripheral edge. Once heated, the peripheral edge of the preformed pallet may be reshaped by one or more die sets forming the peripheral edge into an enclosed pallet.
摘要:
A first aspect of the present invention relates to a medical tube including: a tube main body; a sealed space which is formed in the tube main body and is sealed on both ends; and a variable hardness resin which fills the sealed space and the hardness of which can be changed by supplying energy thereto. A second aspect of the present invention relates to a medical tube including: a tube main body having at least one lumen; a variable hardness resin which fills the inside of the lumen and the hardness of which can be changed by supplying energy thereto; and an outflow preventing mechanism which prevents the filling variable hardness resin from flowing out from the lumen.