Abstract: A synchronizing ring including a bearing ring comprised of sintered steel; and a friction coating provided on thee bearing ring and composed of a friction material which is sintered and which includes a matrix which is iron-based, from 0.5 to 10 percent by weight molybdenum in relation to the weight of the matrix, and from 20 to 50 percent by volume of graphite as a solid lubricant.

Abstract: A component made from a preform made of a first material and having a bearing seat defining a bearing seat surface, and a method of producing the component. The component includes a bearing cap portion, and a remainder portion split from the bearing cap portion and adapted to mate therewith. The method comprises the step of coating the bearing seat surface of the preform with a second material different from the first material for providing a bearing layer made of the second material on the bearing seat surface, the bearing layer having a running face. The step of coating includes the step of thermal spraying the second material on the bearing seat surface. The preform is separated into the bearing cap portion and the remainder portion. The bearing layer is split by fracture separation at a separation region of the bearing layer into a bearing cap bearing layer portion corresponding to the bearing cap portion, and a remainder bearing layer portion corresponding to the remainder portion.

Abstract: A component having a split running face for rolling elements, running face being disposed partially on a bearing cap, and a method of producing the same. According to the method, a preform is made from a material having a carbon content of at least 0.5 percent by weight; the preform is separated by fracture separation at a separation location of the preform thereby producing the bearing cap and a remainder; skin layer hardening is performed on the running face thereby producing a skin hardened layer such that the running face acquires a Rockwell hardness of 55 according to the Rockwell cone method.

Abstract: A liquid mist for being conveyed by a carrier gas stream is produced from a liquid by atomizing the liquid into the carrier gas stream in the form of a collection of droplets, deflecting the collection of droplets in the carrier gas stream at a deflection region, separating droplets in the collection of droplets which exceed a maximum size from the carrier gas stream, collecting at least a part of the separated droplets on at least one heatable contact surface, and at least partially vaporizing them into the carrier gas stream.

Abstract: A sintered material resistant to heat and mechanical strain, particularly to impact and friction, for the production of molded articles, made of a matrix metal powder having approximately 70 to 100% by weight of a copper component and approximately 0 to 30% by weight of an alloy component of cobalt, chromium, iron, manganese, nickel, tungsten and/or carbon. In another embodiment, the sintered material may also include an additional high-alloy metal powder admixed as a hard phase to the matrix metal powder. The additional high-alloy metal powder is present in the amount of a maximum 30% by weight, with respect to the sum of the matrix metal powder and high-alloy metal powder. The sintered material is especially suitable for heat- and wear-resistant molded articles for use in high gas environments, for example, in internal combustion engines. For example, guides, bearings, and valve elements may be made of this material and especially valve seat rings.

Abstract: A method of producing powder forged components produces parts which precisely fit together, the method including the steps of: forming a one-piece preform by pressing from powder; forming at least one tear notch in the preform at a selected location; sintering the preform; providing a protective layer on each tear notch; forging the preform into a component, including closing each tear notch during the forging to form a corresponding slit; cooling the component; and separating the component at the corresponding selected location into a plurality of individual parts by breaking.

Abstract: A process for making sintered metal articles of high strength in which a flowable mass of metallic particles is initially formed into a green compact having shape stability in a forming machine of the type used in the fabrication of sand cores in the metal casting field. The green compact is then subjected to sintering and the sintered body may be pressed, forged or mechanically shaped in other ways. The core blowing or core-sand slinging machine used to produce the green metal compact is surprisingly effective in producing a dense, reproducible structure in light of the fact that sand cores for casting purposes are intentionally made frangible to enable them to be removed effectively from the casting.

Abstract: A boron-containing powder in an amount of up to 25% by weight is mixed with a metal powder (e.g. steel) and the mixture is compacted in a mold to at least 80% of theoretical density. The compact is sintered at 700.degree. to 1300.degree. C. under a protective atmosphere or vacuum to yield a hard, wear-resistant body.

Abstract: A filter cartridge comprises a body of sintered material having a star-shaped profile and a substantially constant wall thickness. The body has a folded or corrugated configuration with the corrugations extending longitudinally parallel to the axis or along a helix or screw-thread pattern. The ribs or corrugations can be symmetrical about axial planes of the body and, in an embodiment of the invention, are parallel thereto.

Abstract: A filter cartridge has a fluid-permeable support body formed externally with ribs and is closely surrounded by a "folded" (e.g. corrugated) sheath of sintered material. The support body may likewise be formed of sintered material and preferably the sheath and support body are sintered together.