Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of deoxidizer and calcium alloy, applied in the field of steelmaking, can solve the problems of high cost, high labor intensity for cleaning, nodule at the nozzle, etc., and achieves the effect of low cost, improving the steelmaking environment and saving the cost of steelmaking.
Inactive Publication Date: 2020-05-19
淅川县裕丰州冶材科技有限公司 +2
View PDF5 Cites 2 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a silicon-aluminum-calcium alloy deoxidizer for steelmaking, which can effectively solve the high cost of deoxidation of pure aluminum in steelmaking, nodules at the nozzle, and labor intensity for cleaning. big problem
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 more
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0013] The present invention is a silicon-aluminum-calcium alloy deoxidizer for steelmaking, which is made of the following metal raw materials by weight: 30KG of ferrosilicon, 40KG of metal aluminum, 15KG of metal calcium and 15KG of steel block. The four metal raw materials are crushed and mixed uniformly When the electric furnace is preheated to above 800°C, the mixture is sent to the electric furnace for melting. After all of the melting, when the temperature reaches 1000~1500°C, it is poured into the tundish, and then poured into the ingot mold Molded, cooled to a shaped block, 0.5~1KG per block, passed inspection, packaged, and stored.
[0014] The temperature reaches 1000-1500°C, preferably 1100°C, 1250°C and 1350°C.
Embodiment 2
[0016] The present invention is a silicon-aluminum-calcium alloy deoxidizer for steelmaking, which is made of the following metal raw materials by weight: 27KG of ferrosilicon, 42KG of metal aluminum, 13KG of metal calcium, and 18KG of steel block. The preparation method is the same as that of Example 1.
Embodiment 3
[0018] The present invention is a silicon-aluminum-calcium alloy deoxidizer for steelmaking, which is made of the following metal raw materials by weight: 32KG of ferrosilicon, 38KG of metal aluminum, 18KG of metal calcium, and 12KG of steel block. The preparation method is the same as that of Example 1.
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
Login to view more
Abstract
A Si-Al-Ca alloy deoxidizing agent for steel making can effectively solve the problems that the cost of pure aluminum de-oxidation in steel making is high, nozzle clogging takes place, and labor strength of cleaning is high. The Si-Al-Ca alloy deoxidizing agent comprises, by weight, the metal raw materials including 25-35 kg of silicon iron, 35-45 kg of aluminum metal, 10-20 kg of calcium metal and 10-20 kg of steel blocks. The preparation method for the alloy deoxidizing agent comprises the following steps: crushing silicon iron into blocks of 20-40 cm, crushing aluminum metal powder into particles, crushing the calcium metal into blocks, mixing the blocks and the particles with the steel blocks, preheating an electric furnace to over 800 DEG C, delivering a mixture of the four metals into the electric furnace for smelting, pouring the mixture in the electric furnace into a tundish when the mixture is melted completely and the temperature reaches 1000-1500 DEG C, conducting pouring sizing in an ingot mold, and carrying out packaging and warehouse storage after the product passes detection. The raw materials are abundant, composition is scientific and rational, the preparation method is simple, production is easy, cost is low, use effects are good, adverse factors caused by nozzle clogging can be effectively prevented, labor strength is relieved, production efficiency is increased, steel making conditions are improved, the cost of steel making is saved, and economic and social benefits are huge.
Description
Technical field [0001] The invention relates to the field of steelmaking, in particular to a silicon-aluminum-calcium alloy deoxidizer for steelmaking. Background technique [0002] As we all know, deoxidation is necessary in steelmaking. Deoxidation is generally to add deoxidizers in steelmaking. There are many deoxidizers used in steelmaking. Among them, it is generally believed that pure aluminum has the best deoxidation effect. However, there is an inevitable The defect (disadvantage) is the use of pure aluminum for deoxidation. In the process of steelmaking and tapping, aluminum and oxygen combine to produce aluminum oxide (Al2O3) at the nozzle, which affects normal casting. In order to prevent aluminum oxide from being in the nozzle Nodules require investment of manpower and material resources for processing, and the labor intensity is high. This not only delays the normal production of steelmaking, but also increases the cost of steelmaking. Moreover, the price of pure alu...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more