CN103418757B - Multiple processing of molten iron of nodular cast iron - Google Patents
Multiple processing of molten iron of nodular cast iron Download PDFInfo
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- CN103418757B CN103418757B CN201210185328.6A CN201210185328A CN103418757B CN 103418757 B CN103418757 B CN 103418757B CN 201210185328 A CN201210185328 A CN 201210185328A CN 103418757 B CN103418757 B CN 103418757B
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Abstract
A nodulizing agent, a plurality of mixing agents, molten metal degassing agent powder, anorthite sand, a nodulizing barrel and a dam are included in multiple processing of molten iron of nodular cast iron. The nodulizing agent is uniformly laid in a pit on the left side of the dam inside the nodulizing barrel, the plurality of mixing agents cover the nodulizing agent uniformly, the molten metal degassing agent powder covers the plurality of mixing agents uniformly, the anorthite sand covers the molten metal degassing agent powder uniformly, and the molten metal degassing agent powder and the anorthite sand are compacted through a tamper flat end. The smelted molten iron is poured into the right side of the dam. The nodulizing reaction time is postponed at the beginning of pouring of the molten iron through covering of the nodulizing agent with a plurality of covering substances, after a large amount of molten iron is poured, the plurality of covering substances are molten, the covering effect is ineffective, the nodulizing agent churns drastically for reaction in the molten iron, and the good nodulizing effect is achieved; by the aid of the drastic churning reaction of the molten iron, a degassing and refining matrix structure agent which plays a role in covering is subjected to full melting diffusion and multiple reactions, and the multiple high-effect processing is obtained through one operation. The high-quality nodular cast iron is obtained through the multiple processing of the molten iron of the nodular cast iron.
Description
Technical field
The present invention relates to Ductile Iron Casting technique, the method for the especially multinomial process of molten ductile iron.
Background technology
Current Ductile Iron Casting adopts furnace cupola or electric furnace to carry out furnace charge melting, in nodularization bag, nodulizer is coated with magnesium iron bits, magnesium iron fragment, rice-straw ash or perlite, that only there is ball covering on soil agent individual event performance, because coverage effect is bad and cover individual event performance made nodulizer cross fast response in advance or spheroidizing quality poor, cause the bad or nodularization failure of spheroidizing quality.
Summary of the invention
The invention provides the multinomial process of a kind of molten ductile iron, they are the coverture of nodulizer and the inorganic agent of the multinomial process of molten ductile iron, complete the covering effect to nodulizer in nodularization bag after, liquid iron balling fierceness obtains abundant fusing that is compound inoculated, degassed and refinement matrix thing fully and spreads and multinomial reaction in seething, obtain high-quality magnesium iron.
The technical solution adopted for the present invention to solve the technical problems is: the method for the multinomial process of molten ductile iron, and agents useful for same is: nodulizer, multiple intermixture, molten metal degasser powder, anorthite sand.Even lay nodulizer in pit on the left of dykes and dams in nodularization bag, the multiple intermixture of uniform fold on nodulizer, uniform fold molten metal degasser powder on multiple intermixture, uniform fold anorthite sand on molten metal degasser powder also uses the compacting of sand rammer tack.Melted molten iron rushes on the right side of dykes and dams.
Described multiple intermixture is: Antaciron Si65Fe adds and accounts for molten iron gross weight 1.4%, granularity 5-10 millimeter; Silicon barium-ferrum alloy Si64Ba5Fe adds and accounts for molten iron gross weight 0.5%, granularity 5-10 millimeter; Antimony ore powder Sb2O3 adds and accounts for molten iron gross weight 0.008%, granularity≤0.2 millimeter; Mixing is chosen and is mixed evenly.
The invention has the beneficial effects as follows: the method for the multinomial process of molten ductile iron, carry out fully compound inoculated, desulfurization, degassed and refinement matrix agent fusing diffusion homogeneous reaction when liquid iron balling seethes stirring.The postponement decaying spheroidisation time reaches 20 minutes.Oxygen potential reaches 1-2 level, and graphite sphere diameter reaches 7-8 level, and the matrix of refinement reaches fine pearlite, and casting qualification rate reaches 93%, obtains high-quality iron casting.
Accompanying drawing explanation
Below in conjunction with accompanying drawing 1 and embodiment, the present invention is further described.
Accompanying drawing 1 is the longitudinal profile structure chart of the multinomial process of molten ductile iron.
In accompanying drawing 11, nodulizer, 2, multiple intermixture, 3, molten metal degasser powder, 4, anorthite sand, 5, nodularization bag, 6, dykes and dams.
Detailed description of the invention
Accompanying drawing 1 is the longitudinal profile structure chart of the multinomial process of molten ductile iron of nodularization 600 kilograms of molten iron production QT500-7 trade mark nave bosses.In dykes and dams (6) left side pit in the accompanying drawings in nodularization bag (5), evenly lay nodulizer (1) FeSiMg8RE5 is 7.8 kilograms, and granularity is 20-30 millimeter, adds by 1.3% of spheroidization molten iron weight; On nodulizer (1) FeSiMg8RE5, the multiple intermixture of uniform fold (2) accounts for 60% of molten iron gross weight 1.4% amount is 5.1 kilograms, on the multiple intermixture (2) covered, uniform fold molten metal degasser powder (3) Re, Ti, NaNO3 account for molten iron gross weight 0.4% is 2.4 kilograms, and on molten metal degasser powder (3) Re, Ti, NaNO3, uniform fold 4 mm of thickness, granularity are 20-40 object anorthite sand (4) CaOAl2O3.2SiO2 and use the compacting of sand rammer tack.Melted 400 kilograms of molten iron are poured nodularization bag (5) interior dykes and dams (6) right side, and the amount of pouring accounts for 2/3rds of spheroidising iron water amount.When starting to pour small part molten iron, anorthite sand (4) gathering is covered with molten metal degasser powder (3) Re, Ti, NaNO3, has postponed the nodulizer spheroidizing reacion time, wait pour molten iron increase raise with temperature time, anorthite sand (4) CaAl2O3.2SiO2 is covered above nodulizer (1) FeSiMg8RE7, molten metal degasser powder (3) Re, Ti, NaNO3 and multiple intermixture (2) fusing diffusion lose covering effect, nodulizer (1) FeSiMg8RE5 fierceness in more molten iron seethes reaction, molten iron is made to obtain sufficient nodularization, once-combinedly to breed, take off abundant fusing diffusion and the homogeneous reaction of oxygen hydrogen nitrogen and the agent of refinement matrix, skim after the complete stirring molten iron of spheroidizing reacion, what add multiple intermixture (2) residue 40% is 3.3 kilograms, stir and carry out second time and process molten iron, molten iron temperature in the 200 kilograms of iron water extraction height nodularization bags pouring remaining 1/3rd again, stir molten iron, at the molten iron surface coverage heat preserving agent of nodularization, the molten iron getting nodularization does chill block and checks spheroidizing quality, in 20 minutes, the molten iron of nodularization is poured after qualified.Apply the operation of multinomial process magnesium iron water and once can play multinomial performance process molten iron, reaction evenly.Can continuous seepage.
Multiple intermixture is: Antaciron Si65Fe adds and accounts for molten iron gross weight 1.4%; Granularity 5-10 millimeter; Silicon barium-ferrum alloy Si64Ba5Fe adds and accounts for molten iron gross weight 0.5%; Granularity 5-10 millimeter; Antimony ore powder Sb2O3 adds and accounts for molten iron gross weight 0.008%, granularity≤0.2 millimeter; Mixing is chosen and is mixed evenly.
Claims (1)
1. the method for the multinomial process of molten ductile iron, reagent used is: nodulizer, multiple intermixture, molten metal degasser powder, anorthite sand, it is characterized in that: even lay nodulizer in pit on the left of dykes and dams in nodularization bag, the multiple intermixture of uniform fold on nodulizer, uniform fold molten metal degasser powder on multiple intermixture, uniform fold anorthite sand on molten metal degasser powder also uses the compacting of sand rammer tack; Melted molten iron pours on the right side of dykes and dams; Described multiple intermixture is: Antaciron Si65Fe adds and accounts for molten iron gross weight 1.4%, granularity 5-10 millimeter; Silicon barium-ferrum alloy Si64Ba5Fe adds and accounts for molten iron gross weight 0.5%, granularity 5-10 millimeter; Antimony ore powder Sb
2o
3add and account for molten iron gross weight 0.008%, granularity≤0.2 millimeter; Mixing and stirring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210185328.6A CN103418757B (en) | 2012-05-16 | 2012-05-16 | Multiple processing of molten iron of nodular cast iron |
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| CN201210185328.6A CN103418757B (en) | 2012-05-16 | 2012-05-16 | Multiple processing of molten iron of nodular cast iron |
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| CN103418757A CN103418757A (en) | 2013-12-04 |
| CN103418757B true CN103418757B (en) | 2015-06-10 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103710612B (en) * | 2013-12-27 | 2015-11-18 | 宁夏共享集团有限责任公司 | The production method of a kind of cast ferrite base spheroidal graphite cast iron QT600-10 |
| CN105154610A (en) * | 2015-02-04 | 2015-12-16 | 山西清慧机械制造有限公司 | Method for base iron spheroidisation in nodular cast iron production |
| NO347571B1 (en) * | 2016-06-30 | 2024-01-15 | Elkem Materials | Cast Iron Inoculant and Method for Production of Cast Iron Inoculant |
| NO20172061A1 (en) | 2017-12-29 | 2019-07-01 | Elkem Materials | Cast iron inoculant and method for production of cast iron inoculant |
| NO346252B1 (en) * | 2017-12-29 | 2022-05-09 | Elkem Materials | Cast iron inoculant and method for production of cast iron inoculant |
| NO20172063A1 (en) | 2017-12-29 | 2019-07-01 | Elkem Materials | Cast iron inoculant and method for production of cast iron inoculant |
| NO20172065A1 (en) * | 2017-12-29 | 2019-07-01 | Elkem Materials | Cast iron inoculant and method for production of cast iron inoculant |
| NO20172064A1 (en) * | 2017-12-29 | 2019-07-01 | Elkem Materials | Cast iron inoculant and method for production of cast iron inoculant |
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Inventor after: Fan Yane Inventor before: Chen Shuo |
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Effective date of registration: 20170824 Address after: 301700 Tianjin city Wuqing District Zhu Zhuang Jie Jia Ping Jinghui Garden Road on the north side of No. 12 unit 1, room 701 Patentee after: Fan Yane Address before: 310011 Zhejiang Hangzhou Gongshu District Wanjia Huacheng 1 301 Patentee before: Chen Shuo |
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Effective date of registration: 20180411 Address after: 226100 Fuxing Road, yuimen Town, Haimen City, Nantong, Jiangsu Province, No. 20 Patentee after: Nantong excellent art design Co., Ltd. Address before: 301700 Tianjin city Wuqing District Zhu Zhuang Jie Jia Ping Jinghui Garden Road on the north side of No. 12 unit 1, room 701 Patentee before: Fan Yane |