High-carbon low-alloy wear-resistant ball steel and production process thereof
A production process and low-alloy technology, applied in the field of high-carbon low-alloy wear-resistant ball steel and its production process, can solve the problems of low production efficiency, high cost, low content of wear-resistant alloys, etc. Low cost, uniform steel effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0028] A high-carbon low-alloy wear-resistant ball steel, its chemical composition weight percentage (wt%) is: C 0.99%, Si 0.24%, Mn 1.04%, Cr 0.54%, Ni 0.02%, Mo 0.02%, Al 0.032 %, S 0.002%, P 0.013%, Cu 0.04%, and the remainder is Fe.
[0029] The production process of the above-mentioned high-carbon low-alloy wear-resistant ball steel is as follows:
[0030] (1) Electric furnace smelting, smelting in a 90-ton electric furnace, adding molten iron and scrap steel, and adding ferrochrome and ferromanganese to the ladle when tapping, to achieve pre-removal of P and initial adjustment of components;
[0031] (2) LF refining, S removal and composition fine-tuning in a 100-ton LF furnace;
[0032] (3) VD vacuum furnace, vacuum degassing and composition fine-tuning in a 100-ton VD furnace;
[0033] (3) Continuous casting, using the R10m 5-machine 5-strand continuous casting machine produced by Italian Danieli Company, to cast a rectangular billet of 220*260mm;
[0034] (...
Embodiment 2
[0038] Another high-carbon low-alloy wear-resistant ball steel, its chemical composition weight percentage (wt%) is: C 0.99%, Si 0.29%, Mn 1.04%, Cr 0.55%, Ni 0.02%, Mo 0.02%, Al 0.043%, S 0.003%, P 0.007%, Cu 0.04%, the rest is Fe.
[0039] Production technology is identical with embodiment 1.
[0040] The steel used for the wear-resistant ball is ∮75mm, and the properties of the steel are as follows:
[0041] Types A, B, and C of non-metallic inclusions are all grade 0, grade D is coarse and grade 0, and grade D is fine is grade 0.5; the oxygen content is 8.4ppm.
Embodiment 3
[0043] Another high-carbon low-alloy wear-resistant ball steel, its chemical composition weight percentage (wt%) is: C 0.99%, Si 0.27%, Mn 1.07%, Cr 0.55%, Ni 0.02%, Mo 0.02%, Al 0.041%, S 0.004%, P 0.011%, Cu 0.04%, and the rest is Fe.
[0044] Production technology is identical with embodiment 1.
[0045] The steel used for the wear-resistant ball is ∮80mm, and the properties of the steel are as follows:
[0046] Types A, B, and C of non-metallic inclusions are all grade 0, category D is coarse and grade 0, and category D is fine is grade 0.5; the oxygen content is 7.7ppm.
[0047] Studies have shown that: the steel for wear-resistant balls of the present invention has good properties of forged or rolled steel balls, and the method of continuously making the steel balls fall freely for 48 hours from a height of 8 meters is used to test the wear-resistant and impact-resistant properties of the steel balls. All the balls have passed the test, and the steel balls have high we...
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