High manganese steel with excellent oxygen cutting properties and preparation method thereof
A technology for oxygen cutting, steel
Active Publication Date: 2022-08-02
浦项股份有限公司
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] However, in order to use austenitic high manganese steel as a structure as mentioned above, it is necessary to cut and process the material by oxygen cutting, etc. The problem that the state of the cutting surface deteriorates due to sparks, etc.
That is, in order to improve cutting performance, it is necessary to preheat the steel or reduce the cutting speed, which is not conducive to productivity
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
preparation example Construction
[0028] The present invention relates to a high manganese steel material with excellent oxygen cutting properties and a preparation method thereof. The preferred implementation examples of the present invention will be described in detail below. The implementation examples of the present invention can be transformed into various forms, and the protection scope of the present invention should not be interpreted as being limited to the following implementation examples. This implementation example is provided to explain the present invention in more detail to those skilled in the art to which the present invention pertains.
[0029] Next, the steel composition of the present invention will be described in further detail. Hereinafter, unless otherwise indicated, the % indicating the content of each element is by weight.
[0030] The high-manganese steel material excellent in oxygen cutability according to one aspect of the present invention may include, in % by weight, carbon (C)...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| yield strength | aaaaa | aaaaa |
| tensile strength | aaaaa | aaaaa |
| surface roughness | aaaaa | aaaaa |
Login to View More
Abstract
The high manganese steel material excellent in oxygen cutability according to one aspect of the present invention may include, in % by weight, carbon (C): 0.1-0.5%, manganese (Mn): 20-26%, silicon (Si): 0.05-0.4%, aluminum (Al): 2.0% or less, Chromium (Cr): 4% or less, the balance of Fe and other unavoidable impurities, the cutting sensitivity (Sc) calculated from the following [Relational Expression 1] is 430 or more, including 95 area % or more of austenite as a microstructure. [Relationship 1] Cutting sensitivity (Sc)=1742‑662×[C]‑19.2×[Mn]+1.6×[Al]‑140×[Cr] In the above [Relationship 1], [C] , [Mn], [Al], and [Cr] represent the weight % of C, Mn, Al, and Cr contained in the steel material, respectively, and represent 0 when the corresponding components are not added.
Description
technical field [0001] The invention relates to a high manganese steel and a preparation method thereof, in particular to an austenitic high manganese steel with excellent oxygen cutting properties and a preparation method thereof. Background technique [0002] Austenitic high manganese steel has the characteristics of making austenite stable even at room temperature and having high toughness by adjusting the content of manganese (Mn) and carbon (C), which can improve the stability of austenite. Austenite is a paramagnet with low magnetic permeability and excellent non-magnetic properties compared to ferrite. Materials generally used in transformers and switchboards have a magnetic permeability of 1.05 or less, while austenitic high-manganese steel has a magnetic permeability of 1.02 or less. It can be seen that austenitic high-manganese steel has excellent non-magnetic properties compared with conventional materials. . [0003] In addition, the high-manganese steel with a...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/04C22C38/02C22C38/06C22C38/38C22C38/32C21D8/02
CPCC21D6/00C21D6/002C21D6/005C21D8/02C21D8/0205C21D8/0226C21D9/46C22C38/02C22C38/04C22C38/06C22C38/32C22C38/38C21D2211/001C21D1/02C21D2261/00C21D8/0263
Inventor 李云海李东镐赵原兑李淳基崔昌植姜相德丁荣德金保成石桢蘍
Owner 浦项股份有限公司