Method for manufacturing wind power forging by using 20CrMnMo continuous casting blank
A technology for continuous casting blanks and forgings, applied in the field of forging manufacturing, can solve the problems of reducing the mechanical properties of forgings, affecting the fatigue life of forgings, and having many defects in continuous casting blanks, so as to achieve the effect of ensuring fatigue life.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0021] See figure 1 : the method for making wind power forgings with 20CrMnMo continuous casting slab shown is characterized in that comprising the following steps:
[0022] (1) Material selection, select the continuous casting slab with the grade of 20CrMnMo, the continuous casting slab is a cylindrical continuous casting slab, and the diameter of the continuous casting slab is Φ≥600mm;
[0023] (2) For the first heating of the furnace, the selected continuous casting slabs are loaded into a chamber-type natural gas heating furnace for heating. Ignite until the temperature rises to 1250°C, and the heating rate is ≤200°C / h;
[0024] (3) Forging, on the 8MN hydraulic press, carry out two upsetting and drawing on the heated continuous casting billet to ensure that the first upsetting and drawing ratio is: the upsetting ratio is 2.3, the drawing length ratio is 2.1, and the second upsetting and drawing ratio is : The upsetting ratio is 2.0, the drawing ratio is 1.8, and the ini...
Embodiment 2
[0029] See figure 1 : the method for making wind power forgings with 20CrMnMo continuous casting slab shown is characterized in that comprising the following steps:
[0030] (1) Material selection, select the continuous casting slab with the grade of 20CrMnMo, the continuous casting slab is a cylindrical continuous casting slab, and the diameter of the continuous casting slab is Φ≥600mm;
[0031] (2) For the first heating of the furnace, the selected continuous casting slabs are loaded into a chamber-type natural gas heating furnace for heating. Ignite until the temperature rises to 1265°C, and the heating rate is ≤200°C / h;
[0032] (3) Forging, on the 8MN hydraulic press, perform two upsetting and drawing on the heated continuous casting slab to ensure that the first upsetting and drawing ratio is: the upsetting ratio is 2.4, the drawing length ratio is 2.2, and the second upsetting and drawing ratio is : The upsetting ratio is 2.1, the drawing ratio is 1.9, and the initial...
Embodiment 3
[0037] See figure 1 : the method for making wind power forgings with 20CrMnMo continuous casting slab shown is characterized in that comprising the following steps:
[0038] (1) Material selection, select the continuous casting slab with the grade of 20CrMnMo, the continuous casting slab is a cylindrical continuous casting slab, and the diameter of the continuous casting slab is Φ≥600mm;
[0039] (2) For the first heating of the furnace, the selected continuous casting slabs are loaded into a chamber-type natural gas heating furnace for heating. Ignite until the temperature rises to 1280°C, and the heating rate is ≤200°C / h;
[0040] (3) Forging, the heated continuous casting slab is subjected to two upsetting and drawing on the 8MN hydraulic press to ensure that the first upsetting and drawing ratio is: the upsetting ratio is 2.5, the drawing length ratio is 2.3, and the second upsetting and drawing ratio is : The upsetting ratio is 2.2, the drawing ratio is 2.0, and the ini...
PUM
Property | Measurement | Unit |
---|---|---|
diameter | 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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com