How to Handle the Problem of Imported Bearings Overheating

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Overheating in imported bearings can lead to serious issues, not only affecting the quality of the bearing components but also reducing their resistance to corrosion. When the workpiece is severely overheated, it can result in a coarse grain structure, which weakens the mechanical properties. Additionally, an excess of iron wire in the steel may occur, leading to poor hot working performance. In particular, when LCRL8Ni9Ti stainless steel components or flange parts are overheated, they are prone to developing an "orange peel" surface effect, which is both visually unappealing and structurally problematic. To prevent these issues, the following measures are recommended: 1. **Strict Control of Heating Parameters**: Ensure that the casting heating temperature and holding time for LCRL8Ni9Ti stainless steel components are strictly controlled. This helps avoid overheating and the formation of coarse grains. 2. **Optimize Forging Processes**: During forging, ensure proper deformation ratios to improve material homogeneity and reduce the risk of defects caused by improper shaping. 3. **Careful Heat Treatment**: Avoid excessively high temperatures during heat treatment. The maximum temperature should not exceed 1150°C, and the holding time should be calculated as 1–1.5 minutes per millimeter of thickness. 4. **Refining Grain Structure**: If a workpiece has already been overheated, consider using methods such as re-forging or grain refinement to eliminate the defects. This helps prevent the formation of an orange peel appearance during cold deformation and improves the overall quality of the component.

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Recommended Reading:

• TIMKEN imported bearings directly affect the service life of the bearing.
• Types of rolling bearings and their oscillation characteristics.
• Methods to extend the life cycle of bearings.

This article is sourced from China Bearing Network. For more information, visit www.chinabearing.net.

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