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Steel and component for high temperature joining processes

A component, process technology, applied in the field of steel and components used in high temperature joining processes, which can solve problems such as adverse effects on physical properties, weld zone, etc.

Inactive Publication Date: 2013-08-07
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such changes must be carefully controlled, because changes that cause an improvement in one physical property may have an adverse effect on another physical property
For example, steels with hypereutectoid carbon content can create weld zone problems due to too much carbon being dissolved in the austenite produced during welding

Method used

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  • Steel and component for high temperature joining processes
  • Steel and component for high temperature joining processes
  • Steel and component for high temperature joining processes

Examples

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Embodiment Construction

[0037] figure 1 An example of a bearing component 10 is shown, a rolling element bearing, which may range in size from 10 mm in diameter to several meters in diameter, and whose load capacity may range from tens of grams to thousands of tons. That is, bearing components according to the invention may be of any size and of any load capacity. The bearing component 10 has an inner ring 12 , an outer ring 14 and a set of rolling elements 16 . The inner ring 12, the outer ring 14 and / or the rolling elements 16 of the rolling element bearing 10, and preferably all rolling contact parts of the rolling element bearing 10, are manufactured from steel having the following composition (% by weight): 0.5-0.8C, 0- 0.15Si, 0-1.0Mn, 0.01-2.0Cr, 0.01-1.0Mo, 0.01-2.0Ni, 0.01-1.0V or 0.01-1.0Nb, or both 0.01-1.0V and Nb, 0-0.002S, 0- 0.010P, 0-0.15Cu, 0.010-1.0Al, and the rest are Fe and normal impurities.

[0038] For example, the steel may contain 0.7% C, 0.1 Si, 0.7 Mn, 1.3 Cr, 0.5 Mo, 1....

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Abstract

Steel for a high temperature joining process suitable, in particular for components intended for applications with high demands on fatigue and toughness properties, such as bearing components, comprising the following composition in weight-%: 0.5-0.8 C, 0- 0.15 Si, 0-1.0 Mn, 0.01-2.0 Cr, 0.01-1.0 Mo, 0.01-2.0 Ni, 0.01-1.0 of V or 0.01-1.0 of Nb, or 0.01-1.0 of both V and Nb, 0-0.002 S, 0-0.010 P, 0-0.15 Cu, 0.010-1.0 Al, the remainder being Fe and normally occurring impurities.

Description

technical field [0001] The invention relates to a steel suitable for high-temperature joining processes and a bearing component comprising such a steel. Background technique [0002] Many metal parts undergo high temperature joining processes such as flash butt welding during their manufacture. [0003] Flush butt welding is a resistance welding technique used to join segments of metal rails, rods, chains or pipes where the segments are aligned end to end and energized to produce The arc melts and welds each end of the segment, resulting in a very strong and smooth connection. [0004] A flash butt welding circuit usually consists of a low voltage, high current energy source (usually a welding transformer) and two clamping electrodes. The two segments to be welded are clamped in the electrodes and approached until they meet so that light contact occurs. The transformer is energized, creating a high density of current flowing through the areas that touch each other. The f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/48C22C38/44C22C38/46
CPCF16C33/30C22C38/46C22C38/42F16C17/00F16C2204/64F16C2204/74C22C38/06C22C38/02C22C38/44C22C38/04F16C33/64C22C38/48F16C2226/36F16C33/34F16C33/62
Inventor T.伦德
Owner AB SKF