摘要:
A tank block has an inner surface facing a glass melt, an outer surface facing away from the melt, an upper or head portion and a lower or base portion. An inner layer is formed of a material which is highly resistant to corrosion by the glass melt. A central layer is formed of a material which is less resistant to corrosion and is joined to the inner layer. An outer insulating layer is firmly joined to the central layer. The tank block is designed so that the inner layer is thickest at those areas most subject to corrosion.
摘要:
The instant invention is directed to a mixing head for mixing reactants preferably for the production of foam. The mixing head is characterized as having a housing in which an ejector piston is guided, the guide bore of said piston being crossed by a guide bore for a restrictor slide which has a passage for the ejector piston, an outlet element being situated immediately subjacent to said passage, and, in the most preferable embodiment, the restrictor slide and ejector piston being connected to a control device.
摘要:
A tank block has an inner surface facing a glass melt, an outer surface facing away from the melt, an upper or head portion and a lower or base portion. An inner layer is formed of a material which is highly resistant to corrosion by the glass melt. A central layer is formed of a material which is less resistant to corrosion and is joined to the inner layer. An outer insulating layer is firmly joined to the central layer. The tank block is designed so that the inner layer is thickest at those areas most subject to corrosion.
摘要:
An arrangement for milking a plurality of milking animals comprises an automated milking system (11) provided with a milking robot (13) for automatically milking a milking animal; a milking system (15) provided for batchwise milking of multiple milking animals; an identification arrangement (19, 21) provided for identifying each of the plurality of milking animals prior to being milked; decision means (23) connected to the identification arrangement for deciding, for each of the plurality of milking animals, whether that milking animal should be milked by the automated milking system or by the milking system for batchwise milking; and means connected (25) to the decision means for guiding each of the plurality of milking animals to the automated milking system or to the milking system for batchwise milking depending on the decision made for that milking animal.
摘要:
A film forming composition comprises a resin, a plurality of nanoparticles, a surface active material and a polymeric dispersant. The film forming composition is substantially transparent and is adapted to be combined with a substrate to enhance abrasion resistance. The film forming composition may be used with wood objects including furniture, doors, floors, for architectural surfaces, for automotive articles and finishes, for metal coatings and coil coatings, for plastic articles, and for wipe-on protective treatments.
摘要:
The present invention is directed to a process and corresponding device for incorporating expanded graphite in a gentle manner into a polyurethane reactive mixture and, on the other hand, processes and corresponding means for reducing or preventing sedimentation of the expanded graphite in the liquid.
摘要:
Wax-containing preparation for treating wood and leather surfaces, comprising very fine transparent titanium dioxide particles with a crystallite size of between 5 and 50 nm offer long-term protection of wood and leather surfaces against the harmful effects of light at wavelengths between 280 and 800 nm.
摘要:
An apparatus for managing animals, having a stall, such as a milking stall with an automatic milking machine. The stall comprises an entrance and an exit and is provided for housing one single animal. One or more enticing devices are provided to entice the animal to approach or to leave the stall.
摘要:
A milking plant comprises a stall adapted to house one animal at a time for milking of the animal and a device for automatic milking of the animal in the stall. According to the invention the automatic milking device comprises a first milking unit with teatcups and a second milking unit with teatcups and an attachment means adapted to attach the teatcups of either the first or the second milking unit onto the animal's teats. During milking, the milking unit which is not used for milking may be cleaned or serviced, in order to be prepared for the next animal to be milked.
摘要:
Leakage problems can be avoided in an apparatus for the preparation of a solid or cellular plastic-forming, flowable reaction mixture of at least two flowable reaction components and at least one additional component, by providing in the feed pipe of one of the reaction components a mechanical pre-mixer having a stirrer shaft. Upstream of the pre-mixer, a hydraulic motor comprising two meshing toothed wheels which is driven by the components themselves, is disposed in a manner such that one of the toothed wheels is disposed on an extension of the stirrer shaft, and wherein the bearings of the toothed wheels and the stirrer shaft are outwardly enclosed.