CN1194106C - Arburetant integrating metal with arbon and its preparing process - Google Patents
Arburetant integrating metal with arbon and its preparing process Download PDFInfo
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- CN1194106C CN1194106C CNB021225591A CN02122559A CN1194106C CN 1194106 C CN1194106 C CN 1194106C CN B021225591 A CNB021225591 A CN B021225591A CN 02122559 A CN02122559 A CN 02122559A CN 1194106 C CN1194106 C CN 1194106C
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Abstract
The present invention relates to a carburant used in the processes of steel making, particularly to a carburant for the combination of metal and carbon steel and a preparation method thereof. The present invention overcomes the defects of small specific weight and unstable carburizing effect in the existing carburant. The present invention has the technical scheme that the carburant for the combination of metal and carbon steel is prepared by that instant agents and binding agents are added in metal powder and carbon materials. The present invention is characterized in that the metal powder can be manganese-iron powder or mixtures of manganese-iron powder and iron powder; the carburant is prepared from 35 to 57 % of C, 5 to 35% of Mn, 0.5 to 2% of binding agent, namely silica sol and 0.5 to 2% of fuse promoting agent, namely carbonate. The preparation method comprises the following steps: all the components are prepared according to the proportion, the prepared materials are uniformly mixed by a material mixer; blanks are pressed and shaped by a blank pressing machine; then, baking and sintering are carried out, and finished products are prepared. The present invention has the characteristics that the granularity of all the components is from 0.5 to 6.0mm, the baking temperature is from 105 DEG C to 120 DEG C, and the baking time is from 6 to 8 hours; the present invention is mainly used for the carburization of molten steel in the processes of steel making.
Description
One, technical field
The present invention relates to the carburelant that uses in a kind of steelmaking process, particularly a kind of metal and carbon material combination carburant and preparation method thereof.
Two, background technology
At present, each steel mill utilizes carburelant to carry out the carburetting of molten steel, to adjust the carbon content in the steel, reaches the steel grade specification requirement.The carburelant that uses is generally pitch coke now, and its physical and chemical index is: C 〉=98%, granularity are 5-15mm, bulk density 0.6g/cm
3, its adding method is: add in the molten steel jar with molten steel when molten steel is tapped, rely on high-temperature digestion and molten asphalt Jiao of molten steel, realize molten steel recarburization.There is following shortcoming in this carburelant: 1, proportion is little, and its bulk density has only 0.6g/cm
3, and the proportion of molten steel reaches about 7.8g/cm
3, therefore, after adding molten steel, carburelant floats to the molten steel surface very soon, enter in the slag and scaling loss.2, when tapping, the oxidisability slag floats over the surface of molten steel, be easy to carburelant in the carbon reaction, make the carburelant scaling loss.The quantity of slag is many, and scaling loss is many, and the quantity of slag is few, and scaling loss is few.Therefore, can cause existing carburelant carburetting effect (50-85%) fluctuated, make steelworks that the situation that carbon content in the steel is lower than the steel grade lower limit and is higher than the steel grade upper limit usually take place, be easy to generate waste product.Chinese patent application ZL95100115.9 has introduced a kind of " composite carbon-iron alloy block and production method thereof ", be used for the carburetting and the deoxidation of process for making, but since its carbon content less than 33%, the carburetting poor effect, and the iron in its batching can cause the extra loss of liquid steel temperature.Chinese patent ZL9711812.2 has introduced a kind of " compounded carbon-silicon-manganese barium alloy piece ", and carbon content wherein has only 3-14%, and this invention can't reach effective carburetting purpose equally.
Three, summary of the invention
The technical issues that need to address of the present invention are: improve the stability and the carburetting efficient of carburetting, improve the proportion of carburelant, it is molten to loose in molten steel easily, does not cause the temperature loss of molten steel during interpolation, and can increase manganese.Technical scheme of the present invention is: metal and carbon material combination carburant, add quick-dissolving agent and binding agent is made by metal powder and carbon materials, it is characterized in that: this product contains: C35-57%, Mn5-35%, binding agent: silicon sol 0.5-2%, melting promotor: carbonate 0.5-2%.Metal powder can be the mixture of ferromanganese powder or ferromanganese powder and iron powder, and carbon materials is chosen from coke, pitch coke, refinery coke, carbon dust, coal dust, graphite and silicon carbide.The preparation method of carburelant metal and carbon material combination carburant: each component is pressed proportion ingredient, with mixer with the material mixing for preparing, with the moulding of harder pressed compact, toast sintering then and produce finished product, it is characterized in that: the granularity of each component is 0.5-6.0mm, the temperature 105-120 degree of baking, storing time is 6-8 hour, the finished product granularity is Φ 20 * 50mm.The invention has the beneficial effects as follows: because the reasonableness of proportioning of the present invention, and the proportion of product is greater than 3.2 gram/cubic centimetres.Make carburelant can enter molten steel inside, and it is molten to loose in inside, carburelant loose the molten time in 30 seconds, and can not cause the temperature loss of molten steel, realized stability and high efficiency carburetting and increased manganese, had saved to make steel the consumption of used alloy, had reduced steel-making cost.
Four, embodiment
Embodiment 1: in 100 kilograms, the proportioning of carburelant is: 53 kilograms in high carbon ferromanganese powder, 45 kilograms in graphite, 1 kilogram of silicon sol, Na
2CO
31 kilogram.Component granularity 0.5-6.0mm presses proportion ingredient then, with the material mixing for preparing, uses the moulding of ball press pressed compact with mixer, at temperature 110 degree, to toast and be finished product in 7 hours, the finished product granularity is Φ 20 * 50mm, proportion is 3.9 gram/cubic centimetres, and its composition is C42-46%, Mn32-35%.Its carburetting effect reaches 80-85%, realizes stablizing carburetting.
Embodiment 2: in 100 kilograms, the proportioning of carburelant is: 38 kilograms in high carbon ferromanganese powder, 59 kilograms in graphite, 1.5 kilograms of silicon sol, Li
2CO
31.5 kilogram.Component granularity 0.5-6.0mm presses proportion ingredient then, with the material mixing for preparing, uses the moulding of ball press pressed compact with mixer, at temperature 115 degree, to toast and be finished product in 6.5 hours, the finished product granularity is Φ 20 * 50mm, proportion is 3.5 gram/cubic centimetres, and its composition is C53-55%, Mn25-28%.Its carburetting effect reaches 80-85%, realizes stablizing carburetting.
Embodiment 3: in 100 kilograms, the proportioning of carburelant is: 16 kilograms of medium carbon manganese iron powders, 62 kilograms in graphite, 19 kilograms of iron powders, 1.5 kilograms of silicon sol, Li
2CO
31.5 kilogram.Obtain composition C55-57%, Mn10-12%.All the other are identical with embodiment 2.
Embodiment 4: in 100 kilograms, the proportioning of carburelant is: 25 kilograms of low Carbon Manganese iron powders, 50 kilograms in graphite, 22 kilograms of iron powders, 1.5 kilograms of silicon sol, Na
2CO
31.5 kilogram.Obtain the composition C38-42% of carburelant, Mn20-22%.All the other are identical with embodiment 2.
Embodiment 5: carbon materials adopts coke, and all the other are identical with embodiment 1.
Embodiment 6: carbon materials adopts pitch coke, and all the other are identical with embodiment 1.
Embodiment 7: carbon materials adopts coal dust, and all the other are identical with embodiment 2.
Embodiment 8: carbon materials adopts refinery coke, and all the other are identical with embodiment 2.
Embodiment 9: carbon materials adopts silicon carbide, and all the other are identical with embodiment 2.
Claims (4)
1, metal and carbon material combination carburant, add quick-dissolving agent and binding agent is made by metal powder and carbon materials, it is characterized in that: metal powder can be the mixture of ferromanganese powder or ferromanganese powder and iron powder, this product contains: C35-57%, Mn5-35%, binding agent: silicon sol 0.5-2%, melting promotor: carbonate 0.5-2%.
2, metal according to claim 1 and carbon material combination carburant is characterized in that: carbon materials is chosen from coke, pitch coke, refinery coke, carbon dust, coal dust, graphite and silicon carbide.
3, metal according to claim 1 and carbon material combination carburant is characterized in that: ferromanganese powder is chosen from high carbon ferromanganese powder, medium carbon manganese iron powder, low Carbon Manganese iron powder.
4, metal according to claim 1 and carbon material combination carburant is characterized in that: the proportion of carburelant is greater than 3.2 gram/cubic centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021225591A CN1194106C (en) | 2001-06-18 | 2002-06-03 | Arburetant integrating metal with arbon and its preparing process |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01113454.2 | 2001-06-18 | ||
| CN 01113454 CN1329173A (en) | 2001-06-18 | 2001-06-18 | Metal and carbon material combination carburant |
| CNB021225591A CN1194106C (en) | 2001-06-18 | 2002-06-03 | Arburetant integrating metal with arbon and its preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1397652A CN1397652A (en) | 2003-02-19 |
| CN1194106C true CN1194106C (en) | 2005-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021225591A Expired - Fee Related CN1194106C (en) | 2001-06-18 | 2002-06-03 | Arburetant integrating metal with arbon and its preparing process |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100381583C (en) * | 2006-03-13 | 2008-04-16 | 上海盛宝钢铁冶金炉料有限公司 | Steel smelting and carburating method |
| CN100374582C (en) * | 2006-03-13 | 2008-03-12 | 上海盛宝钢铁冶金炉料有限公司 | Steel smelting and carburating method |
| CN100412210C (en) * | 2006-07-10 | 2008-08-20 | 西安建筑科技大学 | Manganese carbon alloy ball for steel-making recarburization |
| CN103881742B (en) * | 2014-04-09 | 2015-08-26 | 太原理工大学 | A kind of benefit carbon method of dry distillation gas methyl methanol syngas |
| CN104962693A (en) * | 2015-06-01 | 2015-10-07 | 铜陵市明诚铸造有限责任公司 | Nanometer carbon sol-doped porous efficient recarburizing agent recycling waste graphite electrode, and preparation method thereof |
| CN104962692A (en) * | 2015-06-01 | 2015-10-07 | 铜陵市明诚铸造有限责任公司 | Tin antimony oxide-doped porous efficient recarburizing agent recycling waste graphite electrode, and preparation method thereof |
| CN104962691A (en) * | 2015-06-01 | 2015-10-07 | 铜陵市明诚铸造有限责任公司 | Short carbon fiber-doped porous reinforced recarburizing agent recycling waste graphite electrode, and preparation method thereof |
| CN104962690A (en) * | 2015-06-01 | 2015-10-07 | 铜陵市明诚铸造有限责任公司 | Nanometer cerium oxide-doped porous efficient recarburizing agent recycling waste graphite electrode, and preparation method thereof |
| CN106868247B (en) * | 2017-03-21 | 2019-01-08 | 山东南山铝业股份有限公司 | A kind of phosphorous pig iron carbon increasing method |
| CN107326145A (en) * | 2017-07-05 | 2017-11-07 | 天长市兴宇铸造有限公司 | A kind of alloy Investment Steel Castings casting carburant and its preparation technology |
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2002
- 2002-06-03 CN CNB021225591A patent/CN1194106C/en not_active Expired - Fee Related
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| CN1397652A (en) | 2003-02-19 |
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| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI SHENGBAO METALLURGY TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANGHAI SHENGBAO IRON + STEEL METALLURGICAL FURANCE CHARGE CO. LTD. |
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| CP03 | Change of name, title or address |
Address after: Baoshan District Shidongkou 200942 Shanghai Road No. 1 Patentee after: Shanghai Shengbao Metallurgical Technology Co., Ltd. Address before: 200942 Shanghai City, Baoshan District Sheng Qiao Zhen Bei Yun Chuan Road Economic Development Zone Patentee before: Shanghai Shengbao Iron & Steel Metallurgical Furance Charge Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050323 Termination date: 20160603 |