摘要:
Ein Rheometer weist eine Welle auf, die in einem Gaslager drehbar gelagert ist. Das Gaslager weist einen an der Welle angebrachten 1. Lagerkörper (Rotor) und einen 2. Lagerkörper (Stator) auf, der den 1. Lagerkörper (Rotor) mit Abstand unter Bildung eines Lagerspalts umgibt. Der 2. Lagerkörper (Stator) besteht zumindest abschnittsweise aus einem gasdurchlässigen Material und ist derart von einem Gas durchströmt, dass im Lagerspalt ein Gaspolster gebildet ist, durch das der 1. Lagekörper (Rotor) und die Welle berührungslos gelagert sind. Dabei ist vorgesehen, dass der 1. Lagerkörper (Rotor) zumindest in seinen dem 2. Lagerkörper (Stator) zugewandten Bereichen ebenfalls aus einem gasdurchlässigen Material besteht, in das das Gas eindringt und infolge des Staudrucks bzw. Rückstaus des Gases seine oberflächennahe Gasschicht vorzugsweise stehende Gasschicht bildet.
摘要:
Provided is a sliding member, which is reduced in friction under sliding conditions of high load and high speed under an oilless condition, and is excellent in wear resistance. The sliding member includes: a shaft; and at least one intervening member, in which: the at least one intervening member is located between the shaft and a bearing, and is operable independently of the shaft; and at least one surface of the at least one intervening member on a shaft side includes a sliding surface under one of a radial load and an axial load.
摘要:
Die Erfindung betrifft einen Metall/Kunststoff-Gleitlagerverbundwerkstoff (2) mit einer metallischen Stützschicht (4), insbesondere aus Stahl, mit einer porösen Trägerschicht (6), insbesondere einer aus metallischen Partikeln (7) aufgesinterten Trägerschicht (6), und mit einem die Poren der Trägerschicht (6) vollständig ausfüllenden Gleitschichtmaterial (8) auf Polymerbasis mit die tribologischen Eigenschaften verbessernden Füllstoffen, wobei die Polymerbasis PTFE ist; erfindungsgemäß umfasst das Gleitschichtmaterial (8) zu 0,1 - 5 Masse-% Kohlenstoff-Nanorohrchen mit einem Röhrenaußendurchmesser von
摘要:
Suspension bump thrust device (10) for a motor vehicle comprising an upper elastic bearing seat (12) designed to be attached to the chassis of the motor vehicle and a lower supporting cover (13) having a bearing surface (24c) adapted to come in contact with a suspension spring (11) designed to exert axial and radial thrust to the suspension device (10). The lower supporting cover (13) comprises an upper surface (25) opposite to the bearing surface (24c) and forming a sliding race adapted to cooperate with a complementary sliding race (19) of the upper bearing seat (12), said sliding races (19, 25) mating and being slidable one with respect to the other, and able to take up axial and radial forces exerted by the suspension spring (11).
摘要:
The invention relates to mechanical engineering and can be used for modifying the wear surfaces of cinematic pairs. The inventive composition for producing an antifriction coating for the wear surfaces of cinematic pairs comprises AL2O3 and a silicon oxide, wherein the silicon oxide is embodied in the form of SiO2, Al2O3 in the form an amorphous modification whose particle size is equal to or less than 240 ANGSTROM , said composition also comprises expanded intercalated graphite at the following component ratio: 5-10 mass % amorphous Al2O3 whose particle size is equal to or less than 240 ANGSTROM , 70-80 mass % SiO2, the rest being the expanded intercalated graphite. Said composition makes it possible to improve the uniformity, stability and life service of the antifriction coating, to reduce a friction coefficient (to values equal or less than 0.0006 for dry boundary friction) and can be used jointly with an oil lubricant and without any lubricants.
摘要翻译:本发明涉及机械工程,可用于修改电影对的磨损表面。 用于制造用于电影对的磨损表面的抗磨涂层的本发明组合物包括AL 2 O 3和氧化硅,其中所述氧化硅以SiO 2,Al 2 O 3的形式实施,其形式为其粒度等于或小于 所述组合物还包括以下组分比例的膨胀的插层石墨:其质量等于或小于240的5-10质量%的无定形Al 2 O 3,SiO 2为70-80质量%,其余为膨胀的插层石墨。 所述组合物可以提高抗磨涂层的均匀性,稳定性和使用寿命,以降低摩擦系数(对于干边界摩擦等于或小于0.0006),并且可以与油润滑剂和没有任何润滑剂联合使用 。
摘要:
A process for the synthesis of carbon coatings on the surface of metal carbides, preferably SiC, by etching in a halogen-containing gaseous etchant, and optionally hydrogen gas, leading to the formation of a carbon layer on the metal carbide. The reaction is performed in gas mixtures containing 0 to two moles of hydrogen for every two moles of halogen gas, preferably about 0.5 to one mole of hydrogen gas for eery two moles of halogen gas, at temperatures from about 100 DEG C to about 4,000 DEG C. preferably about 800 DEG C to about 1,000 DEG C, over any time range, maintaining a pressure of preferably about one atmosphere.