摘要:
A wrapped slide bearing bushing consists of a composite bushing material including a metal bearing layer, a porous support layer sintered thereon, and a PTFE-based sliding layer, forming the sliding surface of an associated sliding member, said sliding layer also filling the pores of said support layer, and including at least 60 vol % of PTFE, 15-25 volume percent of a metal filler, preferably lead, and optionally 8-12 volume percent of PVDF. To obtain a low coefficient of friction, only varying in a narrow range over a long time period, said slide bearing bushing is formed such that the sliding layer includes 1-3 volume percent of carbon fibers, said carbon fibers being oriented substantially in a preferred direction relative to said composite bushing material, while the relative movement of said bearing bushing and said associated sliding member is substantially transverse to said preferred direction.
摘要:
In an apparatus of manufacturing diaphragms, a layer of a difficulty flowable metal powder is applied to a support, a wire net is rolled onto the powder layer and the latter is compacted at the same time and the metal powder is fired at 800.degree. to 1500.degree. C. in an oxidizing atmosphere. In order to impart to the diaphragms a constant thickness, strength and density, the metal powder is uniformly distributed and applied as regards its bulk volume to the support and the powder layer is moved under a distributing roller rotating opposite to the direction in which the powder is fed.
摘要:
In a process of producing composite materials consisting of sheet metal plates, metal strips and foils and provided with a skeleton surface structure, a layer of a metal powder which is difficultly flowable and consists of irregularly shaped particles is applied to a continuously moved metallic carrier layer and is bonded to said carrier layer by cold roll cladding and is sintered in a reducing atmosphere at temperatures of 600.degree. to 1000.degree. C. In order to produce composite materials in which the skeleton structure constitutes a layer that is of uniform thickness throughout the surface and is firmly bonded to the carrier layer, the metal powder is uniformly distributed and applied as regards its bulk volume using a distributing roller, which rotates opposite to the main direction of movement of the carrier layer, whereby a uniform thickness is obtained.
摘要:
A composite sliding surface bearing consisting of a backing layer of steel, a bearing alloy layer which consists of aluminum and has been applied to said backing layer, and a sliding surface layer which consists of zinc phosphate and has been deposited on said bearing alloy layer. The backing layer of steel is provided on its outside surface in a thickness between 0.5 and 5 .mu.m with a metallic protective layer in order to ensure a firm retention in the bearing housing.
摘要:
A composite bearing material for use in the manufacture of crankshaft bearings comprises a steel strip, which is provided on one side, which is to be used disposed on the outside of the bearing, with an elastic layer, and on the other side, which is to be disposed on the inside of the bearing, with a bearing metal layer. In order to effect a sound insulation, in a particularly desirable manner the elastic layer consists of halogen-free polymers.
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.
摘要:
The invention relates to a plain bearing composite material provided with a metallic support layer, optionally with a porous carrier layer applied thereto, and with a lead-free sliding layer, which forms a sliding partner and whose sliding layer material is based on plastic. The aim of the invention is to provide a plain bearing composite material that has a long serviceable life when used a high temperatures. To this end the sliding layer material comprises PEEK as a matrix forming plastic constituent, a lubricant provided in the form of zinc sulfide, a hardening constituent provided in the form of titanium dioxide, and additionally comprises carbon fibers. The weight percentage proportion of the lubricant and of the hardening constituent with regard to the mass of the sliding layer material ranges from 5 to 15% by weight, and the lubricant and the hardening constituent are provided in the form of fine particles having a particle size D50-value of no greater than 500 nm.
摘要翻译:本发明涉及一种滑动轴承复合材料,其具有金属支撑层,可选地具有施加到其上的多孔载体层,并且具有形成滑动配合物并且其滑动层材料基于塑料的无铅滑动层。 本发明的目的是提供一种在使用高温时使用寿命长的滑动轴承复合材料。 为此,滑动层材料包括PEEK作为形成塑料成分的基体,以硫化锌形式提供的润滑剂,以二氧化钛形式提供的硬化组分,并且还包含碳纤维。 相对于滑动层材料的质量,润滑剂和硬化成分的重量比例为5〜15重量%,润滑剂和硬化成分以粒径 D 50值不大于500nm。
摘要:
In order to improve a bush-like antifriction bearing element for mounting a shaft, a pivot or other revolving component so that penetration of dirt into the bearing as well as out of the bearing, the antifriction bearing element is made pot-shaped so that the end of the antifriction bearing element remote from the end for insertion of the shaft, the pivot or the like, is defined by a bottom portion.
摘要:
In a process of manufacturing diaphragms, a layer of a difficulty flowable metal powder is applied to a support, a wire net is rolled onto the powder layer and the latter is compacted at the same time and the metal powder is fired at 800.degree. to 1500.degree. C. in an oxidizing atmosphere. In order to impart to the diaphragms a constant thickness, strength and density, the metal powder is uniformly distributed and applied as regards its bulk volume to the support and the powder layer is moved under a distributing roller rotating opposite to the direction in which the powder is fed.
摘要:
A material for a low-maintenance sliding surface bearing comprises a metallic backing and on said backing a bearing layer comprising PVDF and an additive for improving the friction and sliding properties. To meet more stringent requirements regarding hygiene, the bearing layer is free of lead and contains 0.5 to 3% by weight of a non-toxic metal oxide power and 10 to 40% by weight of glass microspheres.