Abstract: The wire based on zinc and aluminum contains from 8 to 33% by weight of aluminum and up to 500 ppm of indium, in addition to zinc and the usual impurities. This wire is suitable for thermal spraying for corrosion protection, especially corrosion protection against high atmospheric humidity and high chloride ion concentrations according to DIN 50021-ss.

Abstract: A porous metal foam body obtainable by applying one or more layers of molten metal to an open-pore non-metallic substrate and allowing the molten metal to penetrate into the open pores of said non-metallic substrate to form a metal foam body whose metal component has at least partially penetrated into said open-pore non-metallic substrate. Said open-pore metal foam body is prepared by a process in which an open-pore non-metallic substrate is provided and coated with a molten metal, and the molten metal penetrates into the open pores of the open-pore non-metallic substrate. The metal foam bodies can be employed in many fields of technology.

Abstract: The invention is directed to a method for arc or beam brazing/welding of workpieces (A) made of steel, cast iron, nickel, cadmium, beryllium, titanium, molybdenum, magnesium, aluminum, copper, lead, zinc, tin, hard metal and alloys thereof with workpieces (B) made of steel, cast iron, nickel, cadmium, beryllium, titanium, molybdenum, magnesium, aluminum, copper, lead, zinc, tin, hard metal and alloys thereof, wherein said workpieces (A) and (B) may consist of identical or different metals or metal alloys, using a fused additional metal alloy, characterized by the following steps: a) positioning the workpieces to be joined; b) fusing the additional metal alloy containing an SnZn, SnAg, SnZnAg, SnCu, SnCuAg, SnZnCu or SnZnCuAg alloy; c) applying the fused additional metal alloy on the contact surfaces or partial areas of the contact surfaces between the positioned workpieces; and d) cooling the joined workpieces; steps b) and c) being carried out one immediately after the other.

Abstract: The invention relates to a method for inert gas welding or inert gas soldering of workpieces (A) made of steel, aluminum, magnesium, copper, or the alloys thereof with workpieces (B) made of steel, aluminum, magnesium, copper, or the alloys thereof by using an additional molten metal alloy, workpieces (A) and (B) being made of identical or different metals or metal alloys. The inventive method is characterized by the following steps: a) the workpieces that are to be connected are contacted edge to edge or in an overlapping manner; b) the additional metal alloy containing a Zn/Al alloy is fused; c) the additional molten metal alloy is applied to the contact points or partial areas of the contact points of the contacted workpieces; d) the connected workpieces are cooled. Steps b) and c) are carried out immediately after one another while at least steps b) and c) are carried out by using an inert gas. The invention further relates to a wire that is used in said method.

Abstract: The invention relates to zinc powders or zinc alloy powders with an inhomogeneous bulk density distribution depending on the particle size, wherein the difference of the bulk density measured according to ASTM B212 in the particle size range smaller than 75 ?m and that in the particle size range greater than 150 ?m is at least 0.5 g/cm3, and the mean bulk density of the powder, measured according to ASTM B212, ranges from 1.8 to 4.0 g/cm3. The invention is also directed to mixtures of said zinc powders or zinc alloy powders and to an alkaline battery including said powders.

Abstract: A process for preparing a multilayer surface protection coating for reinforced concrete for improving the corrosion protection of reinforced concrete structures or reinforced concrete construction parts which bear a first layer sprayed onto said reinforced concrete, substantially made of zinc, which is connected with the metal armoring of said reinforced concrete in an electrically conductive way and a second layer of a polymeric material is characterized in that: said second layer of low-viscosity polymers is applied to said first layer of zinc in the form of a continuous film; and a surface protection layer is applied on top thereof. Further, there is disclosed a multilayer surface protection coating for reinforced concrete for improving the corrosion protection of reinforced concrete structures capable of bearing vehicles or reinforced concrete construction parts by layers present on the surface of said reinforced concrete, obtainable by the process according to the invention.

Abstract: The invention relates to a method for inert gas welding or inert gas soldering of workpieces (A) made of steel, aluminum, magnesium, copper, or the alloys thereof with workpieces (B) made of steel, aluminum, magnesium, copper, or the alloys thereof by using an additional molten metal alloy, workpieces (A) and (B) being made of identical or different metals or metal alloys. The inventive method is characterized by the following steps: a) the workpieces that are to be connected are contacted edge to edge or in an overlapping manner; b) the additional metal alloy containing a Zn/Al alloy is fused; c) the additional molten metal alloy is applied to the contact points or partial areas of the contact points of the contacted workpieces; d) the connected workpieces are cooled. Steps b) and c) are carried out immediately after one another while at least steps b) and c) are carried out by using an inert gas. The invention further relates to a wire that is used in said method.

Abstract: The invention relates to zinc powders or zinc alloy powders with an inhomogeneous bulk density distribution depending on the particle size, wherein the difference of the bulk density measured according to ASTM B212 in the particle size range smaller than 75 &mgr;m and that in the particle size range greater than 150 &mgr;m is at least 0.5 g/cm3, and the mean bulk density of the powder, measured according to ASTM B212, ranges from 1.8 to 4.0 g/cm3. The invention is also directed to mixtures of said zinc powders or zinc alloy powders and to an alkaline battery including said powders.

Abstract: Zinc alloys containing from 5 to 35% by weight of aluminum and optionally further alloy components are used as constructional zinc for strips and plates.

Abstract: The invention is directed to a zinc powder or zinc alloy powder for alkaline batteries, which powder has a grain size distribution wherein 60 to 100 wt.-% of the particles, relative to the zinc powder or zinc alloy powder, have a diameter of from 40 to 140 &mgr;m. The invention is also directed to an alkaline battery.

Abstract: The wire based on zinc and aluminum contains from 8 to 33% by weight of aluminum and up to 500 ppm of indium, in addition to zinc and the usual impurities. This wire is suitable for thermal spraying for corrosion protection, especially corrosion protection against high atmospheric humidity and high chloride ion concentrations according to DIN 50021-ss.

Abstract: The method for applying a zinc-based anticorrosion layer for reinforced concrete is characterized in that a layer consists of at least two layers, of which the first layer, directly sprayed on the concrete, is made of pure zinc and the second layer sprayed thereon is made of a zinc/alumimum alloy.

Abstract: The method for improving the corrosion resistance of reinforced concrete coated with a thermal spray coat of metals, especially of zinc or zinc alloys, is effected by electrically connecting said spray coat with the armour and additionally coating it with a polyurethane resin which is applied as a low-viscosity solution in organic solvents.

Abstract: Tin and zinc based shot for use as ammunition having a diameter of from 1.5 to 5.5 mm, containing, by weight, in addition to tin and the usual unavoidable contaminants, from 12 to 60% of zinc and from 0 to 5% of aluminum, but less than 0.1% of copper, less than 0.1% of iron, and less than 1% of lead.

Abstract: A manufacturing process for die-cast light-metal parts, particularly die-cast light-metal wheels for passenger cars using gravity die-casting process using an almost eutectic refined GK-ALSill/Sr-kf alloy having 0.05 to 0.1% parts by weight of magnesium and without any additional significant hardenable constituents. The die-cast wheel is subject to quenching from a temperature of 350.degree. C. to 475.degree. C. immediately after its removal from the die in water of no more than 50.degree. C., and as a result, a considerable increase of the bending fatigue strength in central areas, and of the impact resistance in the edge areas of the wheel is achieved.

Abstract: A die casting process for making castings by means of a horizontally oriented cold-chamber die casting machine comprises the steps of advancing a casting piston in the casting chamber from a starting position for ejecting the molten metal dosage from the casting chamber; and withdrawing the casting piston into the starting position. The withdrawing step includes the step of passing over metal residues adhering to walls of the casting chamber. Subsequent to the withdrawing step and prior to the charging step of a successive cycle, the casting piston is advanced in the casting chamber void of molten metal dosage for ejecting the metal residues by the casting piston from the charging chamber and returning the casting piston into its starting position.

Abstract: A diecasting process for producing cast pieces for metals or their alloys by means of a horizontal cold chamber diecasting machine. The diecasting machine includes a diecasting mold held under a vacuum, a fill chamber coupled to the diecasting mold, a holding furnace containing metal melt, a suction pipe partially immersed in the holding furnace and coupled to the fill chamber, means for transporting metal melt from the holding furnace through the suction pipe into the fill chamber under a vacuum, and means for moving the metal melt from the fill chamber into the diecasting mold. During the dosaging phase when the fill chamber is filled with metal melt, gases and lubricant vapors are developed upon entry of the melt into the fill chamber.