摘要:
A method of manufacturing a strip for a bearing (100) comprises roll-bonding a bearing layer (104) comprising a tin-free aluminium alloy directly to a base layer (102) to form a bimetal; and heat-treating the bimetal at a temperature below a recrystallization initiation temperature of the aluminium alloy. A strip for a bearing manufactured using the method, and a bearing (100) having a strip manufactured using the method, are also provided.
摘要:
A wet cylinder liner for internal combustion engines may include a cylindrical body composed of a ferrous alloy having a circumferential outer surface. The cylindrical body may include a first layer and a second layer disposed sequentially on the outer surface. The first layer may include at least one of at least one silicon and at least one two-component epoxy adhesive. The second layer may include a silane-elastomer compound. The silane-elastomer compound may include nanoparticles of silicon oxide and an adhesion modifier additive. The second layer may be configured as an interface between a cooling fluid and the first layer, as well as to resist erosion by cavitation. The first layer may facilitate an interface for resistance at high temperatures.
摘要:
The present invention relates to a valve (1) for use in an internal combustion engine, in which at least one area subjected to a process of plastic deformation (such as the area of the neck (3) of the valve (1)) is provided with at least 17 % solubilized metallic chromium. The subject matter of the present invention is also a method capable of capable of providing such a mechanism of solubilization of chromium in the structure of the valve (1), thus promoting an element capable of resisting corrosion, while maintaining a competitive cost.
摘要:
The present invention relates to a valve (1) for internal-combustion engines, in particular a titanium valve (1), in which at least one region of the valve (1) has a nitrided layer (10) formed by titanium nitrides and/or aluminium-titanium nitrides, that is up to 500 microns thick, with high surface hardness and high hardness through the depth of the thickness of the nitrided layer (10), providing the valve (1) with excellent wear resistance and high durability.
摘要:
A bearing for an internal combustion engine may include a steel support layer. A coating layer containing a Cu alloy may be laid over the steel support layer. A Ni-based anti-diffusion barrier layer may be laid over the coating layer, and an anti-friction layer containing a matrix of Sn—Zn and Zn precipitates may be laid over the anti-diffusion barrier layer.