摘要:
A film stretching plant is described, which comprises a furnace (3), which consists of several treatment zones (1, 1a) which each respectively comprise a ventilation unit (2). The film (4) is suppliable to the furnace (3) through a film inlet region (5) and is thermally treatable zone-wise in the treatment zones (1, 1a). The treatment fluid (6) supplied to the film stretching plant flows over the film (4) on its upper surface and its lower surface in the treatment zones (1, 1a). In the film stretching plant according to the invention, the treatment fluid (6) is circulatable in the respective treatment zone (1, a) by its associated respective ventilation unit (2) for the thermal treatment of the film (4), and a portion (6a) of the treatment fluid (6) is conveyed from the respective treatment zone (1) to the process-technically following treatment zone (1a). This portion (6a) of the treatment fluid (6) that is conveyed into the following treatment zone (1a) is conveyed decoupled from the passage region of the film (4) in the treatment zones (1, 1a), wherein the respective treatment zones (1, 1a) are equipped with a heat exchanger, by means of which the portion (6a) of the treatment fluid (6) conveyed to it is adaptable to the temperature that is process-technically required in this treatment zone for the thermal treatment of the film (4).
摘要:
Air-jet weaving machine with an apparatus for the supply of compressed air with several pneumatically adjustable pressure regulators (1.1, 1.2, 1.3), wherein the pneumatically adjustable pressure regulators (1.1, 1.2, 1.3) respectively comprise a pneumatic control inlet (3.1, 3.2, 3.3). Furthermore an electrically controllable pressure adjusting means (4) and a control pressure line (5) is present, in which various different air pressure values are producible by the electrically controllable pressure adjusting means (4). To each pneumatic control inlet (3.1, 3.2, 3.3), an electrically switchable valve (6.1, 6.2, 6.3) is allocated, by which the pneumatic control inlet (3.1, 3.2, 3.3) is connectable with the control pressure line (5).
摘要:
There is provided a dismountable bridge with lane girders which are designed as framework beams with a triangular cross section, whereby lower chords run through the two lower corners, which are at the same level, and an upper chord runs through the upper corner. A roadway slab which forms the roadway of the bridge is placed on the upper chord and the upper chord is connected to the roadway slab in a non-positive manner with sheer strength.
摘要:
A mobile, self-sufficient operating assembly for providing electrical energy which includes two internal-combustion engines (21, 23) as well as two generators (22, 24). The internal-combustion engines (21, 23) and the generators (22, 24) being mutually connected by way of a transmission gearing (20) having several shifting clutches (4, 4′, 5, 5′). Electrical control devices control the shifting clutches (4, 4′, 5, 5′) of the transmission gearing (20) whereby optionally each of the two internal-combustion engines (21, 23) or both internal-combustion engines (21, 23) together can drive each of the two generators (22, 24) or both generators (22, 24) together.
摘要:
A direct drive for a loom reed includes a linear motor carrying out a linear oscillating motion, or an arc segment motor carrying out a pivoting oscillating motion, or a circular coaxial motor carrying out a pivoting oscillating motion. The circular coaxial motor has a hollow shaft rotor arranged within a hollow shaft stator, and may further have an additional hollow shaft stator arranged within the rotor in a sandwich motor construction. The arc segment motor and the linear motor may similarly have a rotor member sandwiched between two stator members. Two motor units can be provided respectively above and below the weaving plane to drive the reed together. With these measures, the driving force is increased, yet the drive arrangement is confined to the available installation space.
摘要:
A Positive Temperature Coefficient of Resistance resistor includes a ceramic material of the composition [(Ba.sub.1-e-x Sr.sub.x R.sub.e).sub.1-a M.sub.a ][(Ti.sub.1-b-d N.sub.b Q.sub.d)].sub.c O.sub.3, wherein M is a trivalent or quadrivalent element or a mixture of two or several of these elements; N is a quinquevalent or hexavalent element or a mixture of two or several of these elements; Q is a quadrivalent element or a mixture of two or several of these elements; R is a bivalent element or a mixture of two or several of these elements; and 0.5.ltoreq.x.ltoreq.1, a is 0 or 0.0003.ltoreq.a.ltoreq.0.3, and b is 0 or 0.0003.ltoreq.b.ltoreq.0.3, 0.8.ltoreq.c.ltoreq.1.2, 0.ltoreq.d.ltoreq.0.2, and 0.ltoreq.e.ltoreq.0.2.
摘要翻译:电阻电阻的正温度系数包括组成[(Ba1-e-xSrxRe)1-aMa] [(Ti1-b-dNbQd)] cO3的陶瓷材料,其中M是三价或四价元素或两者的混合物 或这些元素中的几个; N是一种五价或六价元素或两种或几种这些元素的混合物; Q是四价元素或两种或几种这些元素的混合物; R是这些元素的二价元素或两种或几种的混合物; 和0.5≤x≤1,a为0或0.0003 = a = 0.3,b为0或0.0003≤b≤0.3,0.8≤c≤1.2, 0 = d = 0.2,0
摘要:
The invention relates to a process for determining the deviation of the intermediate frequency from a given reference frequency (f.sub.R) in the case of a frequency-pulse radar system, characterized bythe time-related scanning of the echo signal such that, from an echo pulse of an individual target, several scanning values are obtained at different, preferably equidistant points in time within the echo pulse,the Doppler filtering by way of the thus obtained scanning values of an individual target so that several Doppler signals of the same frequency are obtained from the same target from whose phase differences the intermediate-frequency deviation is determined.
摘要:
This invention relates to a high-strength ceramic fiber composite with a high temperature stability and an improved oxidation stability and to a process for producing it.
摘要:
A pane made of glass or plastic, whose optical degree of reflection can be controlled by switching between two different interference conditions. As a result, the transmissibility with respect to sun radiation can be reduced very efficiently and an excessive heating of glazed objects can be prevented. Preferred applications of the invention are the climate control of motor vehicles, rail vehicles, airplanes and buildings.
摘要:
The present invention relates to a self-supporting joining element for planar high-temperature fuel cells for high-temperature electrolysis cells comprising the material La.sub.1+.delta. Mg.sub.x Al.sub.y Cr.sub.1-x-y O.sub.3.+-..epsilon. wherein 0.ltoreq..delta..ltoreq.0.1; 0.02.ltoreq.x.ltoreq.0.0; 0.1.ltoreq.y.ltoreq.0.25; and 0.ltoreq..epsilon..ltoreq.0.1.
摘要翻译:本发明涉及一种用于高温电解槽的平面高温燃料电池的自支撑接合元件,其包括La1 +δGgXAlyCr1-x-yO3 +/-ε,其中0 <= 0.1; 0.02 = x 0.0; 0.1 = y = 0.25; 和0 =ε= 0.1。