Abstract: A method is provided for producing a 0.8-4.5 mm thick steel strip with an amorphous, partially amorphous or fine-crystalline microstructure with grain sizes in the range of 10-10000 nm and also a flat steel product made therefrom. A molten steel is cast into a cast strip in a casting device and cooled down at an accelerated rate. Along with Fe and impurities that are unavoidable for production-related reasons, the molten material contains at least two elements belonging to the group “Si, B, C and P”. In this case, the following applies for the contents of these elements (in % by weight) Si: 1.2-7.0%, B: 0.4-4.0%, C: 0.5-4.0%, P: 1.5-8.0%. With a corresponding composition and a microstructure with corresponding characteristics, a flat steel product according to the invention has a HV0.5 hardness of 760-900.

Abstract: A method for generating a flat steel product comprising the steps of: melting a steel melt, comprising, in addition to Fe and unavoidable impurities (in wt %) C: 0.5-1.3%, Mn: 18-26%, Al: 5.9-11.5%, Si: <1%, Cr: <8%, Ni: <3%, Mo: <2%, N: <0.1%, B: <0.1%, Cu: <5%, Nb: <1%, Ti: <1%, V: <1%, Ca: <0.05%, Zr: <0.1%, P: <0.04%, S: <0.04%; casting the steel melt into a cast strip; heating the cast strip to an initial hot-rolling temperature of 1100-1300° C. at a heating rate of at least 20 K/s; hot rolling the cast strip into a hot strip; cooling the hot strip within 10 seconds after the hot rolling at a cooling rate of at least 100 K/s to <400° C.; and winding the cooled hot strip into a coil at a coiling temperature of up to 400° C.

Abstract: A composite material with a ballistic protective effect having a first, outer layer made of a first steel alloy and at least one second layer which is arranged under the first layer and is made of a second steel alloy. The composite material with a ballistic protective effect allows for a reduction in the weight or the wall thicknesses of the composite material in comparison to conventional composite ballistic materials, by utilizing a first steel alloy of the first layer that has the following alloy constituents in percent by weight (% by weight): 0.06%?C ?1.05%, 0.05%?Si?1.65%, 0.3%?Mn?2.65%, 0.015%?Al?1.55%; Cr?1.2%, Ti?0.13%, Mo?0.7%, Nb?0.1%, B?0.005%, P?0.08%, S?0.01%, Ni?4.0%, and V?0.05%, the remainder being Fe and inevitable impurities. The second layer of the composite material having a higher elongation than the first layer.

Abstract: High-strength, cold-formable steel and a flat steel product produced from such a steel, in which an optimal combination of weldability and a low tendency towards delayed cracking is ensured along with good strength and hot and cold deformability. In order to achieve this, a steel according to the invention contains (in % by weight) C: 0.1-1.0%, Mn: 10-25%, Si: up to 0.5%, Al: 0.3-2%, Cr: 1.5-3.5%, S: <0.03%, P: <0.08%, N: <0.1%, Mo: <2%, B: <0.01%, Ni: <8%, Cu: <5%, Ca: up to 0.015%, at least one element from the group “V, Nb” with the following proviso: Nb: 0.01-0.5%, V: 0.01-0.5% and optionally Ti: 0.01-0.5% and iron and unavoidable, production-related impurities as the remainder.

Abstract: A method for coating hot-rolled or cold-rolled steel strip containing 6-30 wt %. Mn with a metallic protective layer, includes annealing the steel strip at a temperature of 800-1100° C. under an annealing atmosphere containing nitrogen, water and hydrogen and then subjecting the steel strip to hot dip coating. The method provide an economical way of hot dip coating a high manganiferous sheet steel in that, in order to produce a metallic protective layer substantially free from oxidic sub-layers on the steel strip, the % H2O/% H2 ratio of the water content % H2O to the hydrogen content % H2 in the annealing atmosphere is adjusted as a function of the respective annealing temperature TG as follows: % H2O/% H2?8·10?15·TG3.529.

Abstract: The invention relates to a metal strip which is produced from steel by hot rolling and by cold rolling of the metal strip. The invention also relates to a blank produced from the metal strip, the use of the metal strip, and to a method of producing it. The object of providing metal strip from which components of minimum weight which are adapted to specific loads can be produced with little cost or complication is achieved by metal strip of the generic kind which, after the cold rolling, is of constant thickness and has, section by section, regions whose mechanical properties vary. What “after the cold rolling” means, for the purposes of the present invention, is that, immediately on completion of the cold rolling, i.e. without any further treatment such as heat treatment, regions whose mechanical properties vary are present in the metal strip.

Abstract: A lamp is provided. The lamp may include one or a plurality of LED elements; and a housing with electrical and mechanical connection elements, wherein the housing has a light exit region with a light-transmissive terminating element, wherein the terminating element is an optical diffuser element, wherein the terminating element is of a form in which the wall of the terminating element has in cross section two opposite, straight sections running towards one another.

Abstract: A composite material with a ballistic protective effect having a first, outer layer made of a first steel alloy and at least one second layer which is arranged under the first layer and is made of a second steel alloy. The composite material with a ballistic protective effect allows for a reduction in the weight or the wall thicknesses of the composite material in comparison to conventional composite ballistic materials, by utilizing a first steel alloy of the first layer that has the following alloy constituents in percent by weight (% by weight): 0.06%?C?1.05%, 0.05%?Si?1.65%, 0.3%?Mn?2.65%, 0.015%?Al?1.55%; Cr?1.2%, Ti?0.13%, Mo?0.7%, Nb?0.1%, B?0.005%, P?0.08%, S?0.01%, Ni?4.0%, and V?0.05%, the remainder being Fe and inevitable impurities. The second layer of the composite material having a higher elongation than the first layer.

Abstract: The invention relates to a method for hot forming a blank consisting of an aluminium or steel alloy, in which the blank is heated before forming and subsequently formed in a forming tool at a temperature of at least 150° C., and to a device for carrying out the hot forming, having a forming tool which has a punch and a die. The object of proposing an economic method for hot forming is achieved for hot forming an aluminium or steel blank by placing an insulating material onto at least one surface of the blank before forming, wherein the insulating material has a lower thermal conductivity than the blank and the forming takes place with the applied insulating material.

Abstract: The invention relates to a lamp (10) comprising at least one base (11) which is joined to a light, comprising a dome-shaped, in particular dish-shaped, essentially rotationally symmetrical reflector (13), wherein a light source is arranged in the focal point (32) or focal point area thereof in order to produce an oriented, e.g. narrowly emitting, light distribution from said lamp (10). The reflector is provided with an opening (15) which comprises a light exit plane (E) for the lamp (10).

Abstract: The invention relates to a lamp (10) comprising at least one base (11) which is joined to a light, comprising a dome-shaped, in particular dish-shaped, essentially rotationally symmetrical reflector (13), wherein a light source is arranged in the focal point (32) or focal point area thereof in order to produce an oriented, e.g. narrowly emitting, light distribution from said lamp (10). The reflector is provided with an opening (15) which comprises a light exit plane (E) for the lamp (10).

Abstract: Coating steel strips comprising, in % by weight, C: ?1.6%, Mn: 6-30%, Al: ?10%, Ni: ?10%, Cr: ?10%, Si: ?8%, Cu: ?3%, Nb: ?0.6%, Ti: ?0.3%, V: ?0.3%, P: ?0.1%, B: ?0.01%, the rest being iron and unavoidable impurities, and a method of forming steel strips are described. Up to now, such steel strips were not adequately coatable, with a metal coating ensuring outstanding corrosion-resistance and good welding properties. This is ensured by applying an aluminium layer to the steel strip before final annealing and applying the metal coating to said aluminium layer after final annealing.

Abstract: A lamp (10) comprising at least one base (11) which is joined to a light, and a dome-shaped, in particular dish-shaped, essentially rotationally symmetrical reflector (13), wherein a light source is arranged in the focal point (32) or focal point area thereof in order to produce an oriented, e.g. narrowly emitting, light distribution from said lamp (10). The reflector is provided with an opening (15) which comprises a light exit plane (E) for the lamp (10). The light source is formed by at least one LED (20,20a,20b,20c) and is arranged at a distance from the inner side (14) of the reflector. At least one functional element of the LED, in particular at least one voltage supply line (21a,21b,21c,21d) of the LED and/or at least one cooling body (29,30a,30b,30c,30d) for the LED, extends at least partially essentially along the light exit plane (E) or is arranged at least partially on the side of the light exit plane (E) which is oriented away from the reflector (13).

Abstract: A lamp is provided. The lamp may include one or a plurality of LED elements; and a housing with electrical and mechanical connection means, wherein the housing has a light exit region with a light-transmissive terminating element, wherein the terminating element is an optical diffuser element, wherein the terminating element is of a form in which the wall of the terminating element has in cross section two opposite, straight sections running towards one another.

Abstract: The invention provides a method which allows reliable production of steel products from a light steel. The steel products according to the invention exhibit isotropic deformation behavior and are ductile at low temperature with high yield strengths. This is achieved according to the invention by a method for producing a steel product, in particular a steel sheet or steel strip, wherein a steel strip or sheet is produced from steel which contains (in % by weight): C: ?1.00%, Mn: 7.00 to 30.00%, Al: 1.00 to 10.00%, Si: >2.50 to 8.00 %, Al+Si: >3.50 to 12.00%, B: <0.01%, Ni: <8.00%, Cu: <3.00%, N: <0.60%, Nb: <0.30%, Ti: <0.30%, V: <0.30%, P: <0.01% and iron and unavoidable impurities as the remainder, from which strip or sheet the finished steel product is subsequently produced by cold forming that takes place at a degree of cold forming of 2 to 25%.

Abstract: A method for producing cold-formable, high-strength steel strips or sheets with TWIP properties, wherein in successive working steps are carried out without interruption, uses a molten material of the following composition (mass %): C: 0.003-1.50%, Mn: 18.00-30.00%, Ni: ?10.00%, Si: ?8.00%, Al: ?10.00%, Cr: ?10.00%, N: ?0.60%, Cu: ?3.00%, P: ?0.40%, S: ?0.15%, selectively one or more components from the Se, Te, V, Ti, Nb, B, REM, Mo, W, Co, Ca and Mg group provided that the total content of Se, Te is ?0.25%, the total content of V, Ti, Nb, B, REM is ?4.00%, the total content of Mo, W, Co is ?1.50% and the total content of Ca, Mg is ?0.50%, the rest being iron and melting conditioned impurities, wherein the content of Sn, Sb, Zr, Ta and As, whose total content is equal to or less than 0.30% is included in said impurities.

Abstract: Coating steel strips comprising, in % by weight, C: ?1.6%, Mn: 6-30%, Al: ?10%, Ni: ?10%, Cr: ?10%, Si: ?8%, Cu: ?3%, Nb: ?0.6%, Ti: ?0.3%, V: ?0.3%, P: ?0.1%, B: ?0.01%, the rest being iron and unavoidable impurities, and a method of forming steel strips are described. Up to now, such steel strips were not adequately coatable, with a metal coating ensuring outstanding corrosion-resistance and good welding properties. This is ensured by applying an aluminium layer to the steel strip before final annealing and applying the metal coating to said aluminium layer after final annealing.

Abstract: A lamp (10) comprising at least one base (11) which is joined to a light, and a dome-shaped, in particular dish-shaped, essentially rotationally symmetrical reflector (13), wherein a light source is arranged in the focal point (32) or focal point area thereof in order to produce an oriented, e.g. narrowly emitting, light distribution from said lamp (10). The reflector is provided with an opening (15) which comprises a light exit plane (E) for the lamp (10). The light source is formed by at least one LED (20,20a,20b,20c) and is arranged at a distance from the inner side (14) of the reflector. At least one functional element of the LED, in particular at least one voltage supply line (21a,21b,21c,21d) of the LED and/or at least one cooling body (29,30a,30b,30c,30d) for the LED, extends at least partially essentially along the light exit plane (E) or is arranged at least partially on the side of the light exit plane (E) which is oriented away from the reflector (13).

Abstract: A lamp (10) is disclosed with a single or double-sided socket, whereby a bulb element (11) is arranged on the at least one socket (12), which surrounds a volume of space (14) and said lamp is provided with at least one LED element (13). An irradiation of the LED light into the bulb element occurs and, as a result of reflection, in particular total reflection, on the defining surfaces (16,17) of the bulb element a transmission of the LED light within the bulb element occurs.

Abstract: The invention provides a method which allows reliable production of steel products from a light steel. The steel products according to the invention exhibit isotropic deformation behaviour and are ductile at low temperature with high yield strengths. This is achieved according to the invention by a method for producing a steel product, in particular a steel sheet or steel strip, wherein a steel strip or sheet is produced from steel which contains (in % by weight): C: 1.00%, Mn: 7.00 to 30.00%, Al: 1.00 to 10.00%, Si: 2.50 to 8.00%, Al +Si: 3.50 to 12.00%, B: 0.01%, Ni: 8.00%, Cu: 3.00%, N: 0.60%, Nb: 0.30%, Ti: 0.30%, V: 0.30%, P: 0.01% and iron and unavoidable impurities as the remainder, from which strip or sheet the fmished steel product is subsequently produced by cold forming that takes place at a degree of cold forming of 2 to 25%.