A high-efficiency energy-saving low-carbon manganese sphere production process

A production process, high-efficiency and energy-saving technology, applied in the field of manganese-based metallurgical additives, can solve problems such as geometric size, poor uniformity of apparent density and chemical composition, high energy consumption in the production of fused manganese ingots, and irregular geometric shapes, etc., to achieve the elimination of safety Hidden danger, small deformation, good density consistency

Inactive Publication Date: 2011-12-07
吴庆定
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to meet the huge growing demand in the metallurgical market, the majority of engineers and technicians cooperated with suppliers to launch manganese metallurgical additives such as manganese flakes, manganese granules, manganese powder, fused manganese ingots, and forged manganese fixed rolls. The form of manganese metallurgical additives has the following defects: ①The sedimentation velocity of manganese flakes, manganese particles, and manganese powder in molten steel is slow, and the time of suspension on the surface of molten steel is long, the burning loss is serious, and the yield is low; ②Electrofused manganese Ingot production not only has extremely high energy consumption (up to 650-850KW.h per ton), harsh production environment, and high labor intensity, but also has irregular geometric shape, high density, fast settling speed, and low yield; ③ For roll forging Due to the defects in the process of manganese rolling ingots, the geometric size, apparent density, and chemical composition of the product are poor, and it is difficult to implement precise addition

Method used

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  • A high-efficiency energy-saving low-carbon manganese sphere production process
  • A high-efficiency energy-saving low-carbon manganese sphere production process
  • A high-efficiency energy-saving low-carbon manganese sphere production process

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Embodiment 1: a kind of embodiment of the present invention, product adopts following raw material and process to make:

[0021] (1) Take 95 kg of low-carbon (≤0.03%) low-sulfur (≤0.03%) electrolytic manganese metal sheets with a manganese content of 99.5%, roll them into powder, and pass through a 20-mesh standard sieve;

[0022] (2) Take 5 kilograms of inorganic binders that do not contain elements such as S, P, and C, and add them into the manganese powder obtained in step (1), stir quickly in a bowl mixer for 30 seconds, and obtain the mixture for subsequent use;

[0023] ⑶. Put the mixture obtained in step ⑵ on average into a 12-station pull-down forming die and press it into a compact within 20 to 30 minutes. The shape of the compact is a double spherical crown cylinder (maximum size 33mm), and the single compact The piece weight is 80 grams;

[0024] ⑷. Put the compact obtained in step ⑶ in a baking room equipped with a fan and a circulating exhaust fan wit...

Embodiment 2

[0027] Embodiment 2: Another kind of embodiment product of the present invention adopts following raw material and process to make:

[0028] (1) Take 97 kg of low-carbon (≤0.03%) low-sulfur (≤0.03%) electrolytic manganese metal sheets with a manganese content of 99.7%, roll them into powder, and pass through a 40-mesh standard sieve;

[0029] (2) Add 3 kilograms of inorganic binders that do not contain elements such as S, P, and C, and add them into the manganese powder obtained in step (1), stir quickly in a bowl mixer for 50 seconds, and obtain the mixture for subsequent use;

[0030] ⑶. Put the mixture obtained in step ⑵ on average into a 12-station pull-down forming mold and press it into a compact within 20 to 30 minutes. The shape of the compact is 26×20×15 square chewing gum, and the weight of a single compact 90 grams;

[0031] ⑷. Put the compact obtained in step ⑶ in a baking room equipped with a fan and a circulating exhaust fan within 5 to 6 hours, and bake it at 2...

Embodiment 3

[0034] Embodiment 3: another kind of embodiment product of the present invention adopts following raw material and process to make:

[0035] (1) Take 96.5 kg of low-carbon (≤0.03%) low-sulfur (≤0.03%) electrolytic manganese metal sheets with a manganese content of 99.6%, roll them into powder, and pass through a 30-mesh standard sieve;

[0036] (2) Take 3.5 kilograms of inorganic binders that do not contain elements such as S, P, and C, and add them into the manganese powder obtained in step (1), stir rapidly in a bowl mixer for 40 seconds, and obtain the mixture for subsequent use;

[0037] ⑶. Put the mixture obtained in step ⑵ on average into a 12-station pull-down forming die and mold it into a compact within 20 to 30 minutes. The shape of the compact is 26×20×20 square chewing gum, and the weight of a single compact 85 grams;

[0038]⑷. Put the compact obtained in step ⑶ in a baking room equipped with a fan and a circulating exhaust fan within 5 to 6 hours, and bake it at...

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Abstract

A production process of high-efficiency and energy-saving low-manganese balls is as follows: (1) Take low-carbon electrolytic metal manganese sheet and roll it into powder; (2) Add inorganic binder without S, P, C and other elements in the bowl mixer Stir quickly and evenly; ⑶Put it into a 12-station forming mold for molding within a limited time, and the shape of the green compact is double-ball table cylinder or square chewing gum (maximum size≯33mm); ⑷Roast and dry the green compact within the effective time; ⑸ Vacuum sintering and drying the compact within the effective time; (6) Sintering the compact through an inclined sieve moisture-proof packaging within the effective time to obtain a content of C<0.03%, S<0.03%, Si<0.5%, Mn≥97.5%, crushing destructive power ≮1.5kN low-carbon manganese balls. The production process is short, clear, efficient, and environmentally friendly. The shape of the product is regular, the rolling property is good, the density/composition is uniform, the strength is moderate, and it is easy to implement precise addition.

Description

technical field [0001] The invention relates to a production method of manganese-based metallurgical additives used in the smelting of stainless steel, high manganese steel and other types of alloy steel materials, in particular to a high-efficiency and energy-saving low-carbon manganese sphere production process. Background technique [0002] Manganese plays a role in deoxidation, desulfurization and alloying in iron and steel smelting. The presence of manganese can not only eliminate or weaken the hot embrittlement caused by sulfur, but also improve the hot workability of iron and steel materials. The ability to form and stabilize austenite structure is second only to The expensive metal nickel also strongly improves the hardenability of carbon and alloy steels. [0003] In order to meet the huge growing demand in the metallurgical market, the majority of engineers and technicians cooperated with suppliers to launch manganese metallurgical additives such as manganese flake...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/02C22B3/24C22C35/00
Inventor 吴庆定
Owner 吴庆定
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