Carbon and manganese alloy material and preparation method thereof and steel making method applying material

A technology of alloy materials and carbon materials, which is applied in the field of carbon-manganese alloy materials and their preparation, can solve the problems affecting the safety of equipment and personnel, wide fluctuation range of anthracite carburizer, and low pass rate, so as to reduce the cost of converter steelmaking, Solve the effect of unstable composition and stable recovery rate

Inactive Publication Date: 2012-01-11
PANGANG GROUP VANADIUM TITANIUM & RESOURCES +3
View PDF3 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the particles of this kind of recarburizing material are small, almost powdery, and their density is much smaller than that of steel slag in the furnace. When adding such recarburizing material particles into the ladle, dust is easily generated, causing environmental pollution, and some The particles will also be sucked out by the dust removal system; in addition, the particles of carbon-increasing materials added to the ladle float on the steel slag, and due to the high temperature in the ladle, some of the particles are burned and lost
The above reasons

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Carbon and manganese alloy material and preparation method thereof and steel making method applying material
  • Carbon and manganese alloy material and preparation method thereof and steel making method applying material
  • Carbon and manganese alloy material and preparation method thereof and steel making method applying material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0019] The drying conditions may be conventional drying conditions for preparing pressed alloy-like materials, for example, the drying conditions may include drying temperature and time, the drying temperature may be 70-110°C, and the drying time may be 10-60 minutes.

[0020] According to the present invention, in the process of tapping the molten steel into the ladle, the way of mixing the carbon-manganese alloy material with the molten steel has little difference in the quality of the molten steel obtained by smelting, for example, the carbon-manganese alloy material can be added in batches It can be mixed with molten steel in molten steel, and the carbon-manganese alloy material can also be continuously added into molten steel and mixed with molten steel. Preferably, when 1 / 4-2 / 3 of the total tapping amount of molten steel is tapped into the ladle, more preferably 1 / 3 is tapped into the ladle, the carbon-manganese alloy material is added to the ladle and mixed with the mol...

Embodiment 1

[0032] This embodiment is used to illustrate the preparation method of the carbon-manganese alloy material and the converter steelmaking method provided by the present invention.

[0033] The various material ratios are based on a total amount of 100 kilograms, with 44.59 kilograms of carbon powder (containing 75% by weight of carbon, and an average particle diameter of 1mm), 47.3 kilograms of high-carbon ferromanganese fine powder (containing 74% by weight of manganese, containing 7% by weight of carbon % by weight, the average particle diameter is 1.5mm), 5.41 kilograms of aluminum powder (containing 98% by weight of aluminum, the average particle diameter is 1mm) is uniformly mixed with 2.7 kilograms of phenolic resin binder, pressed into balls by a ball press (pressing The pressure is 49 MPa, the pressing temperature is 25° C. at room temperature), and then dried in a baking oven at 100° C. for 30 minutes. The composition of the obtained carbon-manganese alloy material is s...

Embodiment 2

[0038] This embodiment is used to illustrate the preparation method of the carbon-manganese alloy material and the converter steelmaking method provided by the present invention.

[0039] The various material ratios are based on a total amount of 100 kilograms. 50.94 kilograms of carbon powder (72 wt. 6.7% by weight, the average particle diameter is 1.5mm), 4.02 kg of aluminum powder (containing 98% by weight of aluminum, the average particle diameter is 0.9mm) is uniformly mixed with 2.14 kg of phenolic resin binder, and pressed into balls by a ball press (The pressing pressure is 49.5 MPa, and the pressing temperature is 25° C. at room temperature), and then dried in a baking oven at 97° C. for 35 minutes. The composition of the obtained carbon-manganese alloy material is shown in Table 2.

[0040] Table 2

[0041]

[0042] 45 steel is produced in a 120-ton converter in Panzhihua Iron and Steel Extraction Vanadium Steelmaking Plant, with a tapping weight of 133 tons. 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

PropertyMeasurementUnit
Granularityaaaaaaaaaa
Login to view more

Abstract

The invention relates to a carbon and manganese alloy material and a preparation method thereof. The carbon and manganese alloy material comprises carbon (C), manganese (Mn), ferrum (Fe) and aluminum (Al), and moreover, by taking the total content of the carbon and manganese alloy material as a reference, the content of the C is 30-45 weight percent, the content of the Mn is 30-45 weight percent, the content of the Fe is 1-25 weight percent, the content of the Al is 3-10 weight percent, the content of phosphorus (P) is not greater than 0.15 weight percent, the content of sulfur (S) is not greater than 0.15 weight percent, the content of nitrogen (N) is not greater than 0.10 weight percent, and the content of moisture is not greater than 0.5 weight percent. The invention also provides a steel making method applying the carbon and manganese alloy material. By adopting the carbon and manganese alloy material prepared by the invention, molten steel can be stably recarburized or manganized, and the problems that the component of smelted steel is not stable, and the yield is low are solved. The recovery rate of carbon and the recovery rate of manganese are high and stable, and can be respectively and stably controlled to be between 90-96 percent, and moreover, the deoxidation rate of finished steel can also be simultaneously improved.

Description

technical field [0001] The invention relates to a carbon-manganese alloy material, a preparation method thereof and a steelmaking method using the carbon-manganese alloy material. Background technique [0002] For the process of converter smelting medium and high carbon steel, the addition of recarburizer is generally added with the steel flow during the tapping process, and the lower limit is used for rough adjustment, and then the carbon content is fine-tuned in the refining process to achieve the maximum value of the molten steel. carbon content requirements. Usually, the recarburizing agent used as the end point of the converter is various high-carbon materials, such as graphite, petroleum coke and anthracite, etc., and such high-carbon materials are widely used. However, the particles of this kind of recarburizing material are small, almost powdery, and their density is much smaller than that of steel slag in the furnace. When adding such recarburizing material particl...

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
no application Login to view more
IPC IPC(8): C22C30/00C21C7/00
Inventor 曾建华梁新腾陈永李安林李桂军杨森祥李清春
Owner PANGANG GROUP VANADIUM TITANIUM & RESOURCES
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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