Abstract: A friction-type member, which is suited, in particular, as a brake pad for a brake member of fiber-reinforced ceramic, and a method for manufacturing such a brake pad. A mixture is initially prepared from at least carbon particles and metal particles, if indicated, with the addition of polymer binding agents suited for pyrolysis; of hard material particles, such as silicon carbide or titanium carbide as abradants; and of solid lubricants, such as molybdenum sulphide or graphite, and subsequently cold-pressed into green compacts. Sintering is then carried out under vacuum or protective atmosphere, the organic binding agent concentrations initially being pyrolized, and the metal particles being at least partially bonded by reaction to carbon. The friction pads manufactured in this manner exhibit considerable mechanical strength, good frictional properties, as well as a high thermal loading capacity accompanied by a low rate of wear.

Abstract: A brake unit includes a brake disk made of a fiber-reinforced ceramic C/SiC composite and a brake lining tribologically interacting with this brake disk. The brake lining comprises the same material as the brake disk, in which case, at least in the area of the brake lining close to the surface, the hardness is lower than that of the brake disk. The brake unit exhibits a high stability to temperature while the wear is low and the service life is acceptable.

Abstract: A device is proposed for holding an electric motor which has a tubular housing portion enclosing the motor armature and supports which are associated with the motor housing are arranged at the end sides of the housing portion for the arrangement of bearings for the motor shaft. The motor is held in such a way that vibrations are minimized and noise is damped in that at least one resilient damping member is arranged between the inner walls of the holding device and the outer walls of the motor housing facing these inner walls. The damping member is supported at the walls of the holding device and motor housing which face one another.

Abstract: A process to anneal a steel strip in an annealing furnace in an inert-gas atmosphere containing hydrogen, with reduced formation of carbon black and encompassing the phases of heating, retention and cooling, wherein on the surface of the steel strip are impurities containing carbon components, and wherein during the annealing, there is a reaction between the H.sub.2 and the carbon components of the impurities on the surface of the steel strip, whereby said reaction changes the composition of the inert gas atmosphere in the annealing furnace from an inert gas containing H.sub.2 into a gas mixture containing H.sub.2 and CH.sub.4, which forms an H.sub.2 --CH.sub.4 system, and wherein the annealing furnace is flushed during the phase of retention, the phase of cooling, or during both the phases of retention and cooling, as a function of at least one of the thermodynamic limit values of the H.sub.2 --C.sub.4 system.

Abstract: The invention relates to a method and a device for melting down solid combustion residues such as slags, ashes and fine dusts from waste combustion installations (11) with solid, liquid and/or gaseous fossil fuels in a melting device. In order to reduce the necessary energy by combusting fossil fuels, the supply of the combustion residues (12) from the waste combustion installation (11) takes place directly into the filling opening (13) of the melting device. The melting device is designed as a shaft furnace (10) with a furnace space (14, 15) with a refractory lining, the combustion residues (12) being melted down by means of a fuel/oxygen mixture or by means of a fuel/oxygen-air mixture which is introduced into the shaft furnace below the combustion residue fill (21).

Abstract: The invention relates to a process for the solvent-free and dry production of particles from plastics. According to the invention, the plastic is heated to form a viscous material, in this form, is conveyed as material stream through an outlet into a comminution device and there, with spraying of a pressurized liquid atomization medium against it, is comminuted into fibrids and/or fine particles.

Abstract: The invention relates to a process for burning waste with simultaneous regeneration of a usable gas and an inert solid residue in which the waste is fed into the upper part of an upright shaft furnace, an oxygen-containing gas is fed into the lower part of the furnace, the organic part of the waste substances is gasified and pyrolyzed, the inorganic part of the waste substances is made flowable, the gas from the upper part of the furnace is taken off and the inorganic material made flowable is taken off at the lower part of the furnace.

Abstract: N1-Substituted 1H-1,2,3-triazolo[4,5-d]pyrimidine compounds of the formula I ##STR1## in which the substituents X, Y, R.sup.1, R.sup.2 and R.sup.3 have the meanings recited in the specification, are described as pharmaceutical compositions containing them and processes for their preparation. The compounds are effective antiviral agents.

Abstract: The invention relates to a process for removing tin, arsenic and antimony from molten lead by means of oxygen or oxygen-containing gas mixtures, which is or are blown into the molten lead by means of at least one gas nozzle (2). To avoid damage to the gas nozzle, at least the oxygen outlet region (13) thereof, located in the molten lead (6), is enveloped by an inert gas.

Abstract: In secondary steel refining, in addition to the process gas oxygen, the gases nitrogen and argon are employed as treatment gases in the bottom blowing converter. Oxygen and argon can be partially replaced by inexpensive CO.sub.2. The invention provides a process which makes it possible to completely replace nitrogen and argon by CO.sub.2.

Abstract: For a process for the manufacture of powders from molten materials by atomizing the melt to particles by means of fluid media and cooling the particles as they fall, a melting chamber (3) is provided which has a melting system (4) disposed in the melting chamber (3) and an atomizing tower (8) is provided which is associated with the atomizing system (9) and attached to the melting chamber (3). For the production of powders of finest particle size with high purity and uniformity, a plurality of nozzles (11, 12, . . .) which can be aimed in their holders at the molten stream, are used for projecting a low-boiling liquefied gas under a pressure of 50 to 700 bar against the molten stream (23) entering the atomizing tower (8).