Chain element, chain pin and method for producing same
A chain element and chain pin technology, which is applied in the field of chain elements, can solve the problems of strong wear and unsatisfactory edge layer application, and achieve the effect of improving corrosion resistance
Active Publication Date: 2015-05-27
SCHAEFFLER TECH AG & CO KG
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Problems solved by technology
[0004] However, due to the particularly abrasive and possibly also additionally corrosive conditions in the field of application of the respective chain element (this is caused, for example, by combustion residues of the internal combustion engine or contamination by lubricants or lubricant residues), through The corresponding process constructs an edge layer that is often unsatisfactory or only conditionally satisfactory for later applications
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Embodiment Construction
[0047] figure 1 A representative section of a chain 1 comprising a plurality of chain elements 2 is shown. The chain 1 can be designed as a toothed chain and can thus be used, for example, for power transmission in a drive train or as a component of a drive train of a motor vehicle.
[0048] It can be seen that the chain 1 comprises a plurality of chain elements 2 in the form of successively arranged, in particular web-shaped, chain links 3 which are connected to one another via chain pins 4 . figure 2 A separate illustration of a chain element 2 in the form of a chain pin 4 for connecting at least two chain links 3 of a chain 1 is shown.
[0049] The chain elements 2 forming the chain 1 , that is to say the chain links 3 and the chain pins 4 are formed from a metallic, carbon- and iron-based base material 5 , that is to say steel, for example CK75. Chain element 2 has been subjected to two different thermochemical surface treatments.
[0050] After providing a chain eleme...
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Abstract
Chain element (2), particularly a chain pin (4) for joining at least two chain links (3), which element is formed from a base material (5) containing carbon, particularly steel, characterized in that it has a surface layer (7) containing boron and vanadium, wherein the surface layer (7) is produced by means of a method according to which, in a first method step, an inter-layer (6) containing carbon and vanadium is formed by at least one measure for the diffusion of vanadium in near-surface regions of the base material (5) and, in a subsequent second method step, the surface layer (7) is formed by the transformation of the inter-layer (6) by at least one measure for the diffusion of boron into the inter-layer (6).
Description
technical field [0001] The invention relates to a chain element which is formed from a carbon-containing base material, in particular steel, and which is formed as a chain, in particular for use in a chain drive, or as part of such a chain, for example a chain pin; And the invention also relates to a method for manufacturing the chain element. Background technique [0002] Such chain elements are used, for example, as components of chain drives or corresponding chain drives for force transmission and are used in various technical fields, for example in the field of motor vehicle technology. [0003] Chain elements are generally formed from mechanically particularly strainable steel due to the high mechanical loads that occur during their operation. It is also known that chain elements, in particular in the region of contact with other chain elements or other components, are equipped with surface modifications that influence the mechanical properties, especially surface hard...
Claims
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IPC IPC(8): F16G13/02F16G13/04F16G13/06F16G13/07F16G13/08
CPCC23C8/02C23C8/70C23C8/78C23C8/80C23C10/30C23C10/60F16G13/02F16G13/04F16G13/06C23C16/06C23C16/44C23C16/56
Inventor 克里斯蒂安·波利特穆尼尔·阿斯加尔普尔
Owner SCHAEFFLER TECH AG & CO KG