Abstract: A weld projection (8), especially for laser welding, has an indent (10) that is disposed in a first component (4) and that can be welded together with at least one second component (6). The invention is characterized in that the weld projection (8) has a projection (14) and can be brought into contact with the second component (6) via the projection. A shielding housing (1) including such a weld projection (8) for a lamp base is also disclosed.

Abstract: The subject matter of the disclosure is a power supply system for a lamp, having foils, which are embedded in a gas-tight manner in a pinch seal of the lamp and on which are arranged, in each case on two opposing narrow sides, an inner power supply line and an outer power supply line for the purpose of supplying power to a luminous element of the lamp, the outer power supply lines having lamp-side end sections, which are connected to the foils. According to the invention, the end sections of the outer power supply lines extend at least in sections approximately at right angles to a longitudinal axis of the foils.

Abstract: An electrode for a discharge lamp includes an elongate shank (11a) and a top (11b) that is arranged on one end of the shank (11a). The shaft (11a) is flattened to such an extent that its dimensions at an angle to is longitudinal extension are not larger than the corresponding transversal dimensions of the top (11b).

Abstract: The invention discloses a current bushing system for a lamp, having molybdenum foils, which are embedded in a gas-tight manner in at least one end section of the lamp and on which, in each case at two opposite narrow sides, an outer power supply line and an electrode or an outer power supply line and an inner power supply line are arranged. According to the invention, the power supply lines and/or electrodes have, at least in sections, a coating which is designed such that the fusion behavior of the power supply lines and/or electrodes is impaired in the coating region.

Abstract: An assembly for lamp construction, including a solid tungsten W component (10) and at least one film (9) having two contact faces, comprising a metallic molybdenum base body and a coating, which is applied at least in part to said base body and which includes ruthenium or rhenium alone or as an alloy in the region of the first contact face, which produces the contact with the W component, whereas the second contact face is not coated and is intended to be in contact with glass.

Abstract: An electrode system with a new type of join, as well as an associated lamp including this foil and a process for producing the join are described. In an electrode system for the lamp industry, a Mo foil (4) is joined to a pin-like joining partner (2) by the foil (4) and/or the pin-like joining partner (2) being coated (5, 8) with ruthenium. The pin is flattened (3) at the end. A contactless welding process produces a spot fusion welded join (6) which is surrounded by an annular high-temperature soldered join (7). This type of join is insensitive to embrittlement.

Abstract: The subject matter of the disclosure is a power supply system for a lamp, having foils, which are embedded in a gas-tight manner in a pinch seal of the lamp and on which are arranged, in each case on two opposing narrow sides, an inner power supply line and an outer power supply line for the purpose of supplying power to a luminous element of the lamp, the outer power supply lines having lamp-side end sections, which are connected to the foils. According to the invention, the end sections of the outer power supply lines extend at least in sections approximately at right angles to a longitudinal axis of the foils.

Abstract: The invention relates to a process for producing a supply conductor, which is at least partially provided with a coating containing at least one platinum metal, for a lamp, in which process at least two supply conductor parts are joined to one another by a welded or soldered join to produce the supply conductor, and in which process, according to the invention, before the welded or soldered join is produced, a metal powder suspension which contains the at least one platinum metal is applied to at least one of the supply conductor parts, so that the metal powder suspension is arranged in the region of overlap between the at least two supply conductor parts.

Abstract: An electric lamp having at least one transparent lamp vessel which has at least one sealed end through which at least one power supply line for a luminous element is passed which is arranged in the interior of the at least one lamp vessel, the at least one power supply line including a metal foil embedded in the at least one sealed end, characterized in that the metal foil extends at least up to that side of the sealed end which is remote from the interior of the lamp vessel, the at least one power supply line being passed out of the sealed end.

Abstract: Sealing foil for making a lamp (1), comprising a metallic base body made from molybdenum and a coating which has been applied to at least part of the base body and which contains chromium, rhenium or ruthenium, alone or as an alloy, the foil being formed as a stack comprising two parts (10, 11) which have a different coating.

Abstract: An assembly for lamp construction, comprising a solid W component (10) and at least one film (9) having two contact faces, comprising a metallic molybdenum base body and a coating, which is applied at least in part to said base body and which comprises ruthenium or rhenium alone or as an alloy in the region of the first contact face, which produces the contact with the W component, whereas the second contact face is not coated and is intended to be in contact with glass.

Abstract: Sealing foil for making a lamp (1), comprising a metallic base body made from molybdenum and a coating which has been applied to at least part of the base body and which contains chromium, rhenium or ruthenium, alone or as an alloy, the foil being formed as a stack comprising two parts (10, 11) which have a different coating.

Abstract: A sealed-in foil lamp comprising a metal base member of molybdenum and a coating applied on at least a portion thereof, the coating containing ruthenium alone or a ruthenium alloy.

Abstract: The invention relates to a resistance welding process for welding metal parts together. To improve the quality of the weld, at least one welding electrode (4) is embodied as a circular cylinder, which is seated so that it rotates around its cylinder axis. In accordance with the invention, the welding electrode (4) in the shape of a circular cylinder is caused to rotate at least during the welding of the metal parts (1, 2), so that by means of creating a sliding friction between the surface area of the welding electrode (4) and the surface of the metal part (2) resting against it the surface of the latter is freed of possible impurities. The process is particularly well suited for welding sand-blasted molybdenum foils and tungsten wires together.