Ionic nitriding heat treatment technique of 35CrMoV toothed sleeve or toothed ring for centrifugal compressor
一种离心压缩机、离子氮化的技术,应用在热处理炉、热处理设备、金属材料涂层工艺等方向,能够解决不能满足实际需求等问题,达到提高硬度、接触疲劳强度提高、提高心部性能的效果
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0035] 35CrMoV gear ring material for centrifugal compressor, its effective thickness is 100mm, its chemical composition: C: 0.048wt.%; Si: 0.42wt.%; Mn: 0.80wt.%; Cr: 13.70wt.%; Mo: 1.50 wt.%; S: 0.004 wt.%; P: 0.026 wt.%; V: 0.29 wt.%; Fe: balance. It is subjected to ion nitriding heat treatment, including the following steps:
[0036] (1) Normalizing treatment, heat preservation at 900°C for 2.5 hours, then air cooling;
[0037] (2) Quenching treatment, heat preservation at 900°C for 2.5 hours, then oil cooling;
[0038] (3) Tempering treatment, heat preservation at 600°C for 4.0 hours, then air cooling;
[0039] (4) Ion nitriding treatment, ion nitriding at 520°C for 22.0 hours, furnace cooling to 200°C, and then air cooling out of the furnace;
Embodiment 2
[0052]35CrMoV gear ring material for centrifugal compressor, its effective thickness is 100mm, its chemical composition: C: 0.048wt.%; Si: 0.42wt.%; Mn: 0.80wt.%; Cr: 13.70wt.%; Mo: 1.50 wt.%; S: 0.004 wt.%; P: 0.026 wt.%; V: 0.29 wt.%; Fe: balance. It is subjected to ion nitriding heat treatment, including the following steps:
[0053] (1) Normalizing treatment, heat preservation at 900°C for 2.5 hours, then air cooling;
[0054] (2) Quenching treatment, heat preservation at 900°C for 2.5 hours, then oil cooling;
[0055] (3) Tempering treatment, heat preservation at 600°C for 4.0 hours, then air cooling;
[0056] (4) Ion nitriding treatment, ion nitriding at 520°C for 18.0 hours, furnace cooling down to 200°C, and then air cooling out of the furnace;
PUM
Property | Measurement | Unit |
---|---|---|
directional tensile yield strength | aaaaa | aaaaa |
hardness | aaaaa | aaaaa |
directional tensile yield strength | aaaaa | aaaaa |
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