Wheel steel and heat treatment method and application thereof
A heat treatment method and wheel steel technology, which is applied in the field of rolling steel wheels for railway vehicles, can solve the problem of reducing the safety performance of medium and high carbon steel wheels, reducing the crack growth resistance inside the wheel, and the average value of the impact toughness of the web plate, etc. problems, to achieve the effect of promoting the refinement of pearlite sheets, improving the safety performance of the wheel, and good comprehensive mechanical properties
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0029] Example 1:
[0030] The molten steel with the chemical composition shown in Example 1 in Table 1 is formed through electric furnace steelmaking process, LF furnace refining process, RH vacuum treatment process, round billet continuous casting process, ingot rolling process, heat treatment process, processing, and finished product inspection process. The heat treatment process is as follows: after the furnace is heated to 854°C for 2.6 hours, the rim is sprayed with water to cool (accelerate the cooling of the metal inside the rim to below 550°C at a cooling rate of 2°C / s to 5°C / s). When the temperature in the middle of the plate drops to 790°C, air-cool the spokes (accelerate the cooling of the metal inside the spokes to below 732°C at a cooling rate of 4°C / s to 7°C / s), then air cool, and finally heat to Tempering at 497°C, holding time 4 hours 30 minutes.
[0031] Such as figure 1 , 2 As shown, the microstructure of the wheel web prepared in this example is flaky pearlite ...
Example Embodiment
[0034] Example 2:
[0035] The molten steel with the chemical composition shown in Table 1 and Example 2 is formed through electric furnace steelmaking process, LF furnace refining process, RH vacuum treatment process, round billet continuous casting process, ingot rolling process, heat treatment process, processing, and finished product inspection process. The heat treatment process is as follows: the molten steel with the chemical composition shown in Table 1 and Example 2 is passed through the electric furnace steelmaking process, LF furnace refining process, RH vacuum treatment process, round billet continuous casting process, ingot rolling process, heat treatment process, and processing , The finished product inspection process is formed. The heat treatment process is: after the furnace is heated to 868°C for 2.8 hours, the rim is sprayed with water to cool (accelerate the cooling of the metal inside the rim to below 550°C at a cooling rate of 2°C / s to 5°C / s). When the temp...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap