CN102266941A - High-efficiency and energy-saving low-carbon manganese ball production process - Google Patents
High-efficiency and energy-saving low-carbon manganese ball production process Download PDFInfo
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- CN102266941A CN102266941A CN2011102264903A CN201110226490A CN102266941A CN 102266941 A CN102266941 A CN 102266941A CN 2011102264903 A CN2011102264903 A CN 2011102264903A CN 201110226490 A CN201110226490 A CN 201110226490A CN 102266941 A CN102266941 A CN 102266941A
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Abstract
The invention relates to a high-efficiency and energy-saving low-carbon manganese ball production process, which comprises the following steps of: (1) rolling a low-carbon electrolysis metal manganese sheet into powder; (2) quickly stirring an inorganic adhesive agent which does not contain elements such as S, P, C and the like and the powder uniformly in a bowl-shaped mixer; (3) putting the mixture into a 12-working-position forming die within a finite time for die forming, wherein a pressed blank has a double-table cylinder shape or a square chewing gum shape (the maximum size is not more than 33 millimeters); (4) baking to dry the pressed blank within an effective time; (5) sintering to dry the pressed blank in vacuum within the effective time; and (6) performing damp-proof packing on the pressed blank through an inclined sieve within the effective time and sintering the pressed blank so as to obtain the low-carbon manganese ball in which C is less than 0.03 percent, S is less than 0.03 percent, Si is less than 0.5 percent, Mn is more than or equal to 97.5 percent and the crushing destructive power is not less than 1.5 kN. The production process is short, clear, efficient and environment-friendly; the manganese ball has a regular shape, high rollability, uniform density/component and moderate strength; and precise adding is convenient to perform.
Description
Technical field
The present invention relates to a kind of manganese that is used for stainless steel, potassium steel and the smelting of other kind alloy steel material is the production method of metallurgical addition agent, especially relates to a kind of energy-efficient low Carbon Manganese ball producing process.
Background technology
Manganese plays effects such as deoxidation, desulfurization and alloying in smelting iron and steel, the red brittleness that causes because of sulphur can not only be eliminated or weaken to the existence of manganese, improve the hot-working character of ferrous materials, the ability of formation and stable austenite tissue is only second to expensive metallic nickel, also can improve the quenching degree of carbon steel and steel alloy simultaneously strongly.
In order to satisfy the growing great demand in metallurgical market, it is metallurgical addition agent that the collaborative supplier of numerous engineers and technicians has successively released manganese such as manganese sheet, manganese grain, manganese powder, electric smelting manganese ingot, pair roller forging rolling manganese be fixed, but the manganese of above several forms is metallurgical addition agent exists following defective: 1. the sinking speed in manganese sheet, manganese grain, the manganese powder molten steel is slow, the time that is suspended in the molten steel surface is longer, scaling loss is serious, and recovery rate is low; 2. electric smelting manganese ingot not only the energy consumption extra-high-speed (per ton up to 650～850KW.h), production environment is abominable, labour intensity is big, and geometry is irregular, density is big, sinking speed is too fast, recovery rate is not high; 3. pair roller forging rolling manganese ingot is difficult to implement accurately to add because the defective of technology causes physical dimension, apparent density, the chemical composition homogeneity of goods poor.
Summary of the invention
The technical problem to be solved in the present invention is, defective at the prior art existence, provide that a kind of energy consumption is low, production environment good, labour intensity is low, goods regular geometry, rollability are good, the accurate homogeneous of chemical composition, apparent density are moderate, crushing strength can match in excellence or beauty with electric smelting manganese ingot, be convenient to implement accurate interpolation, the manganese that recovery rate is high is additive---the production method of low Carbon Manganese ball.
Technical solution of the present invention is, described low Carbon Manganese ball adopts following raw material and technology to make, and promptly a kind of production technology of highly-efficient energy-saving low-carbon manganese ball, this technology are following steps and scheme:
⑴, be that 99.5%～99.7% low-carbon (LC) (≤0.03%) low-sulfur (≤0.03%) electrolytic manganese metal sheet is rolled into powder, cross 20～40 mesh standard sieves an amount of manganese content;
⑵, get 95～97 kilograms in the powder (accounting for weight ratio 95%～97%) among the step ⑴, add 3～5 kilograms of the inorganic binders (accounting for weight ratio 3%～5%) that do not contain elements such as S, P, C, control Si content≤0.5% stirred 30～50 seconds in bowl type batch mixer fast, and it is standby to get compound;
⑶, step ⑵ gained compound was molded into briquet in 20～30 minutes, pressed compact be shaped as two billiard table cylinders or physical dimension is 26 * 20 * 15～25 square chewing gum shapes; Finishing die adopts the Powder Metallurgy Compacting Die for Withdrawing Process of 12 stations (12 products of promptly each compacting), and pressed compact single-piece weight span is 80～90 grams;
⑷, step ⑶ gained pressed compact was built in the barn that fan and circulation air exhauster are housed at 5～6 hours, under 180～200 ℃ of temperature environments, toasted 6～8 hours, obtain the low Carbon Manganese ball of maximum conquassation power ≮ 1.5KN;
⑸, the dry briquet of step ⑷ gained is incapsulated shape special stainless steel batch can, send into the horizontal vacuum sintering furnace, forvacuum to 10～20Pa; According to the requirement of strength of user to the low Carbon Manganese ball, energising heats up, and is incubated 3～5 hours in 350 ℃～600 ℃ temperature ranges again; Stop heating then, implement forced cooling by removing measures such as the exposed flue of calandria, air-cooled flue, running water spray flue, when furnace temperature is reduced to below 60～80 ℃, use high pure nitrogen or argon gas to abolish vacuum, and take out in time that product is thin to be spread out on iron plate, obtain the low Carbon Manganese ball of maximum conquassation power ≮ 3.0KN;
, according to the requirement of strength of user to goods, step ⑷ or ⑸ gained low Carbon Manganese ball are finished in back 30 minutes at step ⑷ or ⑸ process, remove the powder of low Carbon Manganese ball surface burr and adhesion via inclined screen, roll into moistureproof ton bag enforcement damp-prrof packing.
The arrangement mode of 12 die cavities of 12 station pulling-down type finishing dies among the described step ⑶ is that biserial " cross " type is symmetrically distributed, die cavity be shaped as cylindrical or band fillet rectangle (full-size≤33mm); Pressed compact among the described step ⑶ is shaped as two billiard table cylinders or square chewing gum shape (full-size≤33mm).
Stainless steel batch can among the described step ⑸ is a capsule shape, has the air-vent of feed inlet and outlet and dense distribution, is provided with symmetry lifting joint hinge and upset discharging joint hinge; And be one group with 6 batch cans, be that carrier lines up to pass in and out flue with the curved stainless steel supporting plate that can roll, the each charge of tank battery is about 10 tons.
The invention has the beneficial effects as follows, the regular shape of the low Carbon Manganese ball of producing via above-mentioned technical process, rollability is good, consistent in density is good, uniform component, intensity are moderate, for the user implements accurate interpolation, improves recovery rate, eliminating safe hidden trouble provides guarantee; The shaping of the two spherical crown cylinders of full-size≤33mm or square chewing gum shape pressed compact adopts the Powder Metallurgy Compacting Die for Withdrawing Process of 12～16 stations to implement, and has remedied many defectives that pair roller is shaped, and has guaranteed the raising of production efficiency; Tandem porous capsule shape stainless steel batch can, good permeability, distortion are little, and loading and unloading material is convenient, for reducing production costs, further enhancing productivity and lay a good foundation; The electrodynamic mechanical type automatic feeding and discharging mechanism, in time remove measures such as the exposed retort of calandria, running water spray retort and implement modes such as forced cooling, for the raising of production efficiency provides ultimate guarantee; Do not contain the inorganic binder of elements such as S, P, C employing, remove adhering powder and measures such as burr, enforcement damp-prrof packing via inclined screen, be the product quality guarantee that provides the foundation.
Description of drawings
Figure l is one of geometry of low Carbon Manganese ball of the present invention: two billiard table cylinders, billiard table end face and sphere are with the R10 rounding off, and the pressed compact shape is mellow and full full, and not having cracking may.
Fig. 2 be low Carbon Manganese ball of the present invention geometry two: square chewing gum shape (26 * 20 * 15～25, full-size≤33mm), mellow and full full by the both ends of the surface that the bielliptic(al) face is synthetic, pressed compact does not have cracking may.
Fig. 3 is 12 station finishing die die cavity layouts of the present invention: symmetrical distribution, compact conformation, stressed evenly, to get base convenient.
Fig. 4 is a capsule shape special stainless steel batch can of the present invention: have the air-vent of dense distribution, be provided with symmetry lifting joint hinge and upset discharging joint hinge; 6 batch cans are one group, are that carrier lines up to pass in and out flue with the curved stainless steel supporting plate that can roll, and the each charge of batch can cohort is about 10 tons.
Fig. 5 is a horizontal vacuum sintering furnace of the present invention: adopt the external-heat resistance heated, be furnished with the electrodynamic mechanical type automatic feeding and discharging mechanism, adopts air-cooled stage by stage, water cooling high-efficiency to cool off mode, production efficiency height (but each work input and output material 2 times).
The specific embodiment
Embodiment 1: a kind of embodiment of the present invention, product adopt following raw material and technology to make:
⑴, to get manganese content be 95 kilograms of 99.5% low-carbon (LC) (≤0.03%) low-sulfur (≤0.03%) electrolytic manganese metal sheets, is rolled into powder, crosses 20 mesh standard sieves;
⑵, 5 kilograms of inorganic binders getting elements such as not containing S, P, C add in the step ⑴ gained manganese powder, in bowl type batch mixer, stirred 30 seconds fast, compound is standby;
⑶, step ⑵ gained compound on average put into 12 station pulling-down type finishing dies be molded into briquet at 20～30 minutes, pressed compact be shaped as two spherical crown cylinders (full-size 33mm), pressed compact single-piece weight is 80 grams;
⑷, step ⑶ gained pressed compact was built in the barn that fan and circulation air exhauster are housed at 5～6 hours, baking is 6 hours under 180 ℃ of temperature environments, obtains the low Carbon Manganese ball of maximum conquassation power ≮ 1.5KN;
⑸, the dry briquet of step ⑷ gained is incapsulated shape special stainless steel batch can, send into the horizontal vacuum sintering furnace, forvacuum to 10～20Pa, energising heats up, and insulation is 3 hours in 350 ℃ of temperature ranges; Stop heating then, implement forced cooling by removing measures such as the exposed flue of calandria, air-cooled flue, running water spray flue, when furnace temperature is reduced to below 60～80 ℃, use high pure nitrogen to abolish vacuum, and take out in time that product is thin to be spread out on iron plate, obtain the low Carbon Manganese ball of maximum conquassation power ≮ 3.0KN;
⑹, step ⑸ gained low Carbon Manganese ball is finished in back 30 minutes in step ⑸ process, remove the powder of low Carbon Manganese ball surface burr and adhesion, roll into moistureproof ton bag enforcement damp-prrof packing via inclined screen.
Embodiment 2: another kind of embodiment product of the present invention adopts following raw material and technology to make:
⑴, to get manganese content be 97 kilograms of 99.7% low-carbon (LC) (≤0.03%) low-sulfur (≤0.03%) electrolytic manganese metal sheets, is rolled into powder, crosses 40 mesh standard sieves;
⑵, 3 kilograms of inorganic binders getting elements such as not containing S, P, C add in the step ⑴ gained manganese powder, in bowl type batch mixer, stirred 50 seconds fast, compound is standby;
⑶, step ⑵ gained compound on average put into 12 station pulling-down type finishing dies be molded into briquet at 20～30 minutes, pressed compact be shaped as 26 * 20 * 15 square chewing gum shapes, pressed compact single-piece weight is 90 grams;
⑷, step ⑶ gained pressed compact was built in the barn that fan and circulation air exhauster are housed at 5～6 hours, baking is 8 hours under 200 ℃ of temperature environments, obtains the low Carbon Manganese ball of maximum conquassation power ≮ 1.5KN;
⑸, the dry briquet of step ⑷ gained is incapsulated shape special stainless steel batch can, send into the horizontal vacuum sintering furnace, forvacuum to 10～20Pa, energising heats up, and insulation is 4 hours in 600 ℃ of temperature ranges; Stop heating then, implement forced cooling by removing measures such as the exposed flue of calandria, air-cooled flue, running water spray flue, when furnace temperature is reduced to below 60～80 ℃, use high-purity argon gas to abolish vacuum, and take out in time that product is thin to be spread out on iron plate, obtain the low Carbon Manganese ball of maximum conquassation power ≮ 3.0KN;
⑹, step ⑸ gained low Carbon Manganese ball is finished in back 30 minutes in step ⑸ process, remove the powder of low Carbon Manganese ball surface burr and adhesion, roll into moistureproof ton bag enforcement damp-prrof packing via inclined screen.
Embodiment 3: another kind of embodiment product of the present invention adopts following raw material and technology to make:
⑴, to get manganese content be 96.5 kilograms of 99.6% low-carbon (LC) (≤0.03%) low-sulfur (≤0.03%) electrolytic manganese metal sheets, is rolled into powder, crosses 30 mesh standard sieves;
⑵, 3.5 kilograms of inorganic binders getting elements such as not containing S, P, C add in the step ⑴ gained manganese powder, in bowl type batch mixer, stirred 40 seconds fast, compound is standby;
⑶, step ⑵ gained compound on average put into 12 station pulling-down type finishing dies be molded into briquet at 20～30 minutes, pressed compact be shaped as 26 * 20 * 20 square chewing gum shapes, pressed compact single-piece weight is 85 grams;
⑷, step ⑶ gained pressed compact was built in the barn that fan and circulation air exhauster are housed at 5～6 hours, baking is 7 hours under 190 ℃ of temperature environments, obtains the low Carbon Manganese ball of maximum conquassation power ≮ 1.5KN;
⑸, step ⑷ gained low Carbon Manganese ball is finished in back 30 minutes in step ⑷ process, remove the powder of low Carbon Manganese ball surface burr and adhesion, roll into moistureproof ton bag enforcement damp-prrof packing via inclined screen.
Claims (3)
1. the production technology of an energy-efficient low manganese ball, this technology is following steps:
⑴, to get percentage by weight be that 95%～97% manganese content is that 99.5%～99.7% low-carbon (LC) (≤0.03%) low-sulfur (≤0.03%) electrolytic manganese metal sheet is rolled into powder, crosses 20～40 mesh standard sieves;
⑵, the inorganic binder that does not contain elements such as S, P, C of weight ratio 3%～5% is added above-mentioned steps ⑴ gained manganese powder, control Si content≤0.5% stirs in bowl type batch mixer fast;
⑶, the even compound of step ⑵ gained was inserted die forming in the 12 station pulling-down type finishing dies in 20～30 minutes, pressed compact single-piece weight span is 80～90 grams, pressed compact biggest size of element≤33mm;
⑷, step ⑶ gained pressed compact was built in the barn that fan and circulation air exhauster are housed at 5～6 hours, under 180～200 ℃ of temperature environments, toasted 6～8 hours, obtain the low Carbon Manganese ball of maximum conquassation power ≮ 1.5KN;
⑸, the dry briquet of step ⑷ gained is incapsulated shape special stainless steel batch can, send into the horizontal vacuum sintering furnace, forvacuum to 10～20Pa is incubated 3～5 hours in 350 ℃～600 ℃ temperature ranges; Stop heating then, implement forced cooling, obtain the low Carbon Manganese ball of maximum conquassation power ≮ 3.0KN by removing measures such as the exposed flue of calandria, air-cooled flue, running water spray flue;
⑹, step ⑷ or ⑸ gained low Carbon Manganese ball are finished in back 30 minutes at step ⑷ or ⑸ process, remove the powder of low Carbon Manganese ball surface burr and adhesion, roll into moistureproof ton bag enforcement damp-prrof packing via inclined screen.
2. the production technology of a kind of energy-efficient low manganese ball according to claim 1, it is characterized in that, the arrangement mode of 12 die cavities of 12 station pulling-down type finishing dies among the described step ⑶ is that biserial " cross " type is symmetrically distributed, die cavity be shaped as cylindrical or band fillet rectangle (full-size≤33mm); Pressed compact among the described step ⑶ is shaped as two billiard table cylinders or square chewing gum shape (full-size≤33mm).
3. the production technology of a kind of energy-efficient low manganese ball according to claim 1 is characterized in that, the stainless steel batch can among the described step ⑸ is a capsule shape, has the air-vent of feed inlet and outlet and dense distribution, is provided with symmetry lifting joint hinge and upset discharging joint hinge; And be one group with 6 batch cans, be that carrier lines up to pass in and out flue with the curved stainless steel supporting plate that can roll, the each charge of tank battery is about 10 tons.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943152A (en) * | 2012-11-08 | 2013-02-27 | 鞍山市和丰耐火材料有限公司 | Energy-saving production method for smelting electrolytic manganese balls for ultra-low carbon steel RH furnace alloy micro-adjustment |
| CN103042210A (en) * | 2012-12-24 | 2013-04-17 | 秀山天雄锰业科技有限公司 | Preparation method of high-pressure manganese balls |
| CN110592318A (en) * | 2019-10-14 | 2019-12-20 | 江苏江南铁合金有限公司 | Molybdenum-manganese ball added for steel making and preparation method thereof |
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| CN101168194A (en) * | 2007-10-19 | 2008-04-30 | 王国宁 | Producing technique for forging and rolling manganese metal |
| WO2010035289A1 (en) * | 2008-09-29 | 2010-04-01 | Tata Steel Limited | A method of agglomeration of ferroalloy fines such as ferromanganese, ferrochrome and ferrosilicon fines |
| CN102091779A (en) * | 2010-12-31 | 2011-06-15 | 攀枝花钢城集团有限公司 | Carbon manganese balls and preparation method thereof and continuous casting smelting process for high or medium carbon steel converter |
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2011
- 2011-08-09 CN CN2011102264903A patent/CN102266941A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101168194A (en) * | 2007-10-19 | 2008-04-30 | 王国宁 | Producing technique for forging and rolling manganese metal |
| WO2010035289A1 (en) * | 2008-09-29 | 2010-04-01 | Tata Steel Limited | A method of agglomeration of ferroalloy fines such as ferromanganese, ferrochrome and ferrosilicon fines |
| CN102091779A (en) * | 2010-12-31 | 2011-06-15 | 攀枝花钢城集团有限公司 | Carbon manganese balls and preparation method thereof and continuous casting smelting process for high or medium carbon steel converter |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943152A (en) * | 2012-11-08 | 2013-02-27 | 鞍山市和丰耐火材料有限公司 | Energy-saving production method for smelting electrolytic manganese balls for ultra-low carbon steel RH furnace alloy micro-adjustment |
| CN102943152B (en) * | 2012-11-08 | 2014-06-04 | 鞍山市和丰耐火材料有限公司 | Energy-saving production method for smelting electrolytic manganese balls for ultra-low carbon steel RH furnace alloy micro-adjustment |
| CN103042210A (en) * | 2012-12-24 | 2013-04-17 | 秀山天雄锰业科技有限公司 | Preparation method of high-pressure manganese balls |
| CN103042210B (en) * | 2012-12-24 | 2015-06-03 | 秀山天雄锰业科技有限公司 | Preparation method of high-pressure manganese balls |
| CN110592318A (en) * | 2019-10-14 | 2019-12-20 | 江苏江南铁合金有限公司 | Molybdenum-manganese ball added for steel making and preparation method thereof |
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Application publication date: 20111207 |