Abstract: In the case of filters for cleaning the exhaust gases of diesel engines, the deposited soot particles are burnt at intervals at temperatures between 550.degree. to 700.degree. C. By using filters consisting of open-pore ceramic foam manufactured by coating an open-pore body which can be burnt out, with a ceramic powder suspension, burning out the substrate material at temperatures of 100.degree.-500.degree. C. and then sintering at elevated temperatures, which filters comprise a self-supporting ceramic structure with an internal surface area of the total pore system of 1 m.sup.2 /l to 10 m.sup.2 /l and an open porosity of 55-92%, the soot combustion temperature is reduced to between 400.degree. to 550.degree. C. When coated with catalytically active substances, the soot combustion temperature is even reduced to 350.degree. C.

Abstract: With a sterilizable composite container as preserving receptacle for food and other filled container products, which . . .

Abstract: In a filter consisting of hollow cylindrical open-pore ceramic foam cylinder elements and an end plate made of gas-impermeable material, as an insert in a filter cup for cleaning exhaust gases of diesel engines, in which the exhaust gases flow through the active filter section essentially perpendicularly to the cylinder axis, bending moments which lead to breakage of the ceramic foam cylinder elements occur during fitting of the elements due to lack of surface evenness and plane-parallelism of the end faces. A filter of the aforementioned kind, in which the end faces of the ceramic foam cylinder elements are provided with temperature-resistant and thermal shock-resistant layers of material which are plastic at room temperature, avoids the bending moments.

Abstract: An electromagnetic mold for continuous casting comprises side and endwalls each of which features an inductor part with induction loop and a screen. An endwall can be displaced along and secured to the sidewalls by means of releasable bolts while the related inductor parts and the screens are connected to closed loops via a clamping facility with pistons in piston chambers. To improve this means of fixing and for faster fitting into place, the piston chambers are connected via branch lines or channels to a compression chamber in a piston bore and fitted with a compression medium which can be put under pressure by a main piston.

Abstract: An improved ceramic foam filter for use in filtering molten metal prepared from a ceramic slurry containing silicon carbide and a colloidal silica binder. The filter has a solids content of at least 50% silicon carbide and at least 3% of silica.

Abstract: The device comprises an immersion probe (10) which is permeable to hydrogen and is made of melt-resistant sintered or calcined ceramic material connected, in a vacuum tight manner via a capillary tube (4), to a pressure gauge (2). The immersion probe (10) features at least two essentially plate-shaped diffusion membranes (7,8) that in each case form a common interface (9). The capillary tube (4) as such communicates freely with the interface (9). The immersion probe (10) is preferably situated in a crucible featuring openings above the level of the probe (10); on dipping the crucible into the melt 12, the openings allow the melt (12) to flow in, permit equalization of the hydrogen content of the metal and, after removing the crucible from the melt (12), allow the melt to flow out leaving a residual amount that protects the probe (10). The measuring probe is robust, easily changed and features a short response time.

Abstract: In a vehicle door comprising an outer wall, an inner wall and an equipment carrier which is arranged between the outer and inner walls and, before the outer and inner walls are brought together, can be provided with further door parts, especially a window lifting actuation means, and which serves as a fastening base for at least two door hinges and for at least one door mounted latch arrangement actuable by means of a door lock and interacting with a corresponding frame mounted latch arrangement of the vehicle, and, if appropriate, a window frame, the equipment carrier consists of a bottom boom section with legs directed upwards on one side and at least partially forming a hollow frame, the legs being connected to one another at a distance from the bottom boom section by means of at least one strut.The bottom boom section and the legs preferably consist of an aluminium alloy casting, in which is partially cast a strut consisting of an aluminium alloy extruded hollow section of boxshaped cross section.

Abstract: An aluminium alloy suitable as a material for superplastic forming contains0.8-2.5% or iron,3.5-6.0% of magnesium,0.1-0.6% of manganese,0.05-0.5% of zirconium,at most 6.0% of zinc,at most 3.0% of copper,at most 0.3% of silicon,at most 0.05% of titanium andat most 0.05% of chromium,the remainder being aluminium of commercial purity.The alloy can be processed to give superplastically formable sheets without separate thermomechanical pretreatment.

Abstract: The present invention relates to a ceramic foam material, preferably a ceramic foam filter, prepared by providing an open cell flexible foam having a plurality of interconnected voids surrounded by a web of the flexible foam, applying an adhesion promoting material to at least one surface of the flexible foam, impregnating the flexible foam after applying the adhesion promoting material with a ceramic slurry, drying and heating the impregnated material to remove the organic component therefrom, and firing at an elevated temperature to form the filter. In a preferred embodiment, a flocked coating is formed on at least one surface of the flexible foam prior to impregnation. The flocked coating may be formed either by first applying a solution containing an adhesive to the surface(s) and thereafter applying fibers to the surface or by applying a solution containing the adhesive and the fibers.

Abstract: A weld filler material for fusion welding of high strength aluminum alloys, especially alloys of the AlZnMgCu type, contains4.1-6.5% of zinc,4.0-6.0% of magnesium,0.3-0.6% of copper,0.3-0.5% of manganese,at most 0.1% of titanium,at most 0.3% of chromium,at most 0.3% of zirconium,at most 0.1% of silicon andat most 0.3% of iron,the remainder being aluminum of commercial purity. The formation of cracks in the region of the weld seam can be prevented by means of the weld filler material.

Abstract: A process for measuring the rate of oxidation on the surface of a metal melt wherein the oxide skin on the melt surface is removed at constant temperature and the electromagnetic radiation during the subsequent oxidation is measured with an infra-red radiation pyrometer such that the variation in intensity of the electromagnetic radiation indicates the rate of oxidation. The process can also be employed for measuring the concentration in a metal melt of the elements influencing the rate of oxidation.

Abstract: A process for removing alkali and alkaline earth metals from aluminum melts is such that aluminum fluoride powder is fed continuously to a carrier gas in an amount of 1-10 g/min. and the gas/powder mixture introduced continuously via lances into the melt which is maintained at a temperature between 690.degree. and 780.degree.C.The process is characterized by a low consumption of aluminum fluoride per ton of melt to be treated and is particularly suitable for removing sodium and lithium from aluminum-magnesium alloy melts.

Abstract: The invention relates to a process for removing the residual part of coils from a sheet or strip rolling mill in which the coils to be rolled are transported from the coil store to the uncoiling reel in a two-stroke process by means of a transportation facility e.g. coil transportation vehicle, horizontally and in a shuttle-like manner in the mill pit, the first stroke i.e. stage I being the movement of the coil transporter from the coil store to the uncoiling reel, and stage II being the movement of the coil transporter from the uncoiling reel back to the coil store.

Abstract: A device for the transportation of flowable material in pulverulent, granular, lump, granulated or pasty form in a feed pipe comprises a coaxial endless feeder screw which is rotatable in the forward or reverse direction and a drive mechanism for driving said screw. The drive mechanism enables one to obtain a feed motion without rotation and a rearward motion with a forced, regular rotation of the endless screw so that the material to be transported remains axially stationary during the rearward motion. Owing to the dense column of material to be transported the bearings may be suppressed; if they are provided, they will have to be arranged outside the conveying stock. The endless screw is designed as a single piece screw and the distance between the screw and the feed pipe is slightly bigger than the average size of the grains or lumps of material to be conveyed. The device is preferably used for the supply of pneumatic or hydraulic conveyors.

Abstract: A conduit for transporting finely-divided or fine-granular, dry bulk materials comprises a material conveyance zone and a zone for introducing the fluidizing medium separated from the first mentioned zone by a material which is permeable to gas and fluids. This conduit comprises at least one each of a closed feeder channel, a closed fluidizing channel and between these a fluidizing base. It runs approximately horizontal. In and/or above the fluidizing base are impeller nozzles with at least one outlet opening for a gaseous or fluid impeller medium. The fluidizing medium is introduced into the feeder channel/feeder channels at a positive pressure of 100-500 mm water column and the impeller medium at a positive pressure of 700-1500 mm water column.

Abstract: Disclosed is a ceramic foam material and process for making same having superior strength and chemical durability properties wherein the impregnated foam impregnated with a phosphate bonded ceramic is fired at an elevated temperature so as to produce a ceramic body substantially free of phosphate and having individual grains of ceramic tightly coalesced to minimize porosity between the grains.

Abstract: A substrate for a lithographic printing plate is made of a rolled aluminum alloy sheet of following composition: 0.8 to 2.0% Fe, up to 0.8% Si and up to 1.0% Mn, such that the sum of the Si and Mn contents lies between 0.3 and 1.3%, up to 0.3% Cu, up to 0.8% Mg, up to 2.0% Zn and 0.3% each of other constituents in total up to 1.0%, rest aluminum. A process for manufacturing such a substrate is such that this composition is cast as a 5 to 12 mm thick strip then fabricated to a 0.03 to 0.6 mm thick rolled sheet.

Abstract: A substrate for a lithographic printing plate is made of a rolled aluminum alloy sheet of following composition: 0.8 to 2.0% Fe, up to 0.8% Si and up to 1.0% Mn, such that the sum of the Si and Mn contents lies between 0.3 and 1.3%, up to 0.3% Cu, up to 0.8% Mg, up to 2.0% Zn and 0.3% each of other constituents in total up to 1.0%, rest aluminum. A process for manufacturing such a substrate is such that this composition is cast as a 5 to 12 mm thick strip then fabricated to a 0.03 to 0.6 mm thick rolled sheet.

Abstract: In processes for electrolytically dyeing anodic oxide layers on aluminum or aluminum alloys with direct or alternating current in electrolytes containing metal salts, high requirements are imposed on the uniformity of the dyeing and on the dyeing rate. The improvement of the uniformity of the dyeing and an increased dyeing rate can be achieved by pretreating the oxide layer by means of asymmetric alternating current before it is dyed. Such a process is preferably used in combination with an Sn-containing electrolyte.

Abstract: An electromagnetic mold for vertical continuous casting of rolling slabs, featuring an inductor and an electromagnetic screen partly covering the induction is such that the vertical distance between the lower edge of the inductor and the lower edge of the screen is greater at the narrow sides of the mold than at the broad sides of the mold. As a result of this arrangement it is possible to prevent metal running out of the ingot head at the narrow sides during the start-up phase. The foregoing is achieved at the expense of an insignificant amount of melt circulation occurring in the molten head of the ingot.