Method for accurately selecting scrap iron materials for continuous casting safety sealing dummy ingot
A technology of iron filings and safety, applied in the field of precise selection of iron filings, can solve problems such as no technical solutions, and achieve the effect of prolonging service life and saving usage
Active Publication Date: 2021-06-08
SHANGHAI MEISHAN IRON & STEEL CO LTD
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In all published continuous casting sealed dummy ingot patents and technical documents, the precise selection of iron filings is controlled by manual experience, and there is no good technical solution. Therefore, a new solution is urgently needed to solve the above technology question
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
Embodiment 1
[0045] Embodiment 1: see figure 1 , a method for accurately selecting iron filings for continuous casting safety sealed dummy ingots, said method comprising the following steps:
[0046] Step 1: Determination of the safe thickness of the casting shell;
[0047] 1.1 The temperature T1 of the lower mouth of the crystallizer for casting billet shells is collected by multiple data collection, and the temperature T1 of the lower mouth of the mold for casting billet shells is determined by the average temperature;
[0048] 1.2 Collect the carbon content of the steel produced;
[0049] 1.3 Determining the tensile strength σ of the steel produced according to the carbon content b ;
[0050] 1.4 Collect the continuous casting pouring resistance F;
[0051] 1.5 Calculate S=F / σb through the formula F=σb*s, and calculate the stress area S of the billet shell;
[0052] 1.6 Collect crystallizer section width and thickness dimension information;
[0053] 1.7 Calculate e=S / L through the...
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 |
|---|---|---|
| Tensile strength | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a method for accurately selecting scrap iron materials for a continuous casting safety sealing dummy ingot. The method comprises the following steps that S1, the safe thickness of a casting blank shell is determined; S2, the thickness of scrap iron is determined; S3, iron scrap specification type selection is carried out; and S4, the casting sealing scrap iron material selection process is ended. According to the method, the method for accurately selecting scrap iron materials for the continuous casting safety sealing dummy ingot is adopted, the minimum safe thickness of the casting blank shell is determined by collecting dummy ingot blocking casting throwing resistance according to the blank shell solidification characteristics, and according to the minimum safe thickness of a casting head blank, the molten steel superheat degree and the blank shell thickness solidification heat transfer law, the minimum thickness of the usage amount of the scrap iron is calculated and determined. Then a safety coefficient is set to determine the range of the usage amount of the scrap iron; and finally, the scrap iron material selection of different steel types is distinguished according to the carbon content.
Description
technical field [0001] The invention relates to a method, in particular to a method for accurately selecting iron scrap materials for continuous casting safety sealing dummy ingots, and belongs to the technical field of iron and steel metallurgy continuous casting. Background technique [0002] In the existing slab continuous casting process, each time a new production starts, a device called a dummy bar is pre-installed in the flow line of the continuous casting machine. The head of the dummy rod is commonly known as the dummy head, which is positioned and placed in the mold of the continuous casting machine. After the start of new production, molten steel is injected into the mold, and after being cooled by the sealing structure pre-installed on the dummy head and the copper plate of the mold, the molten steel is gradually formed in the mold. Then the continuous casting machine starts the billet drawing device, and by pulling the dummy rod, the preliminarily formed slab i...
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 IPC IPC(8): B22D11/08B22D11/18
CPCB22D11/088B22D11/188Y02P10/20
Inventor 曾昌富邹世文夏兆东
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD