摘要:
The invention relates to a composite antifriction bearing material for producing antifriction bearing elements, in particular antifriction bearing bushes and antifriction bearing half liners for engine applications, comprising a steel carrier layer and a copper-based, in particular copper-tin-based or copper-zinc-based bearing metal layer applied on top, and comprising an aluminum-based running layer sputtered onto the bearing metal layer; to improve the running-in behavior, applied to the sputtered-on running layer is an additional running-in layer, which is either a zinc-phosphate layer 1-5 μm thick formed on the surface of the running layer or a layer of tin, bismuth, silver or alloys thereof 1-5 μm thick sputtered onto the running layer, but softer than the latter, or a polymer-based antifriction coating less than 10 μm thick.
摘要:
The invention relates to a connecting rod bearing shell or bush for combustion engines or a main bearing shell for mounting the crankshaft of combustion engines. Said bearing shell or bush is made of a composite plain bearing material comprising a metallic, especially steel support layer, a metallic sliding layer (2) that is applied thereto and is formed from a copper-zinc alloy containing 10 to 25 percent by weight of Zn and 1 to 8 percent by weight of Ni, and a sputtered-on overlay layer (4) which faces the sliding layer, is made of an aluminum-tin alloy, and is sputtered directly onto the sliding layer such that a thin nickel barrier layer (10) having a thickness of less that 1 μm is formed.
摘要:
A mobile medical equipment cart with a docking device for docking against a side or end face of a hospital bed includes an arm having a receptacle adapted to engage a feature of a hospital bed and a spring biasing the arm against the received feature of the hospital bed against which the cart is docked, thereby securing the cart to the bed.
摘要:
A crankshaft bearing shell in an internal combustion engine of a vehicle is made from a steel/aluminum composite material and is composed of a steel supporting layer and an aluminum plated sliding layer containing parts of tin and copper in the aluminum sliding layer, optionally comprising an intermediate layer consisting of pure aluminum. The aluminum sliding layer comprises A1Sn (20-23) Cu(1.8-2.3) alloy, optionally containing additions of up to 0.1 wt % of Ni, 0.7 wt % of Si, 0.7 wt % Fe, 0.7 wt % Mn, 0.2 wt % Ti, wherein the sum of Si, Fe and Mn is less than 1 wt %; and impurities form a total amount of less than 0.5 wt.- % with the aluminum sliding layer having a Brinell hardness of at least 45 HB 1/5/30 after heat treatment.
摘要:
A manually operable press comprises a manually pivotable actuating lever for effecting a forward press stroke and a return stroke of a press slide. A mechanical return stroke interlock inhibits a return movement of the press before the press slide has come to a lower end position of the press stroke. A cam plate within said return stroke interlock is connected for being pivoted together with the actuating lever. The cam plate has a groove-shaped guide cam provided with a plurality of lock protrusions. A spring-biased lock pin runs along the guide cam and is adapted to run freely along the guide ram in an operational direction but is inhibited by the lock protrusions within the guide cam from running in a direction opposite the operational direction. An opening each is provided in the guide cam at the lock protrusions. Unlocking pins are provided in each of the openings. The pins are adapted to be actuated from outside the press for bringing the lock pin out of engagement with the lock protrusions thus allowing the lock pin to run in the opposite direction when the unlocking pins are actuated.
摘要:
The invention relates to an aluminum sliding bearing alloy, comprising 3 to 6 mass % zinc, 0.3 to 2.0 mass % copper, 0.2 to 1.0 mass % magnesium, 0.3 to 2.0 mass % silicon and 2 to 4.5 mass % lead. According to the invention, said alloy is obtained by means of continuous casting with a minimum dimension, i.e. a strand thickness of more than 20 mm, solidifying in a mold which is indirectly cooled only, with a withdrawal speed of 1 to 5 mm/s and with a cooling speed of less than 100 K/s.
摘要翻译:本发明涉及铝滑动轴承合金,其包含3〜6质量%的锌,0.3〜2.0质量%的铜,0.2〜1.0质量%的镁,0.3〜2.0质量%的硅和2〜4.5质量%的铅。 根据本发明,所述合金通过连续铸造获得,其最小尺寸即股线厚度大于20mm,在仅间接冷却的模具中固化,取出速度为1至5mm / s 冷却速度小于100K / s。
摘要:
A multilayer material for sliding surface bearings comprises a metal backing layer, a sintered porous bearing layer of a bearing metal, and a low-friction layer consisting of a mixture of PTFE and 5 to 30% by volume metal filler, and fills also the pores of the bearing layer. To reduce the wear the mixture of PTFE and metal filler contains also 5 to 40% by volume PVDF.
摘要:
A piston of a rotary piston engine of trochoidal type of construction, which is radially divided and the parts of which are connected shiftable axially against each other via axial guide bolts and among each other engaging against an elastomeric or resiliently deformable sealing ring, whereby the axial seals of the piston in the sidewalls thereof are structurally fixed or stationary sealing strips. The radial edges of these sealing strips coincide or cover themselves with the contours of the piston flanks or sides and they have cuts, notches or depressions in the piston corners for the radial seals of the piston which are in alignment with the grooves thereof.
摘要:
In the operation of a fuel cell of a fuel cell system, water contained in the exhaust gas is stored in a water tank. The water tank has means for discharging the water in increments or portions. For example, the water can exit as droplets through the porous floor surface of the water tank, and be carried off by the driving wind while the vehicle is driving; or it can be collected at a wall of a water tank and fed into lines, returning it to the exhaust gas flow as droplets.
摘要:
The invention relates to a slide bearing composite material (2) comprising a metallic supporting layer (4), a metallic porous carrier layer (6) that is sintered or sprayed on the supporting layer and has a thickness of between 100 and 500 μm. especially between 200 and 350 μm. and a sliding layer (10) forming a sliding surface for a sliding partner and consisting of a sliding layer material (8) based on a polymer, which also fills the pores of the carrier layer (6) and optionally comprises fillers especially improving the tribological properties. The aim of the invention is to reduce the increase of the thickness of the wall as a result of the deformation. To this end, the porous carrier layer consists of spattered particles having a completely irregular, non-circular geometry, and has a pore volume of at least 40 vol. % before the deformation process.