CN2808926Y - Magnesium-wire cladded wire - Google Patents
Magnesium-wire cladded wire Download PDFInfo
- Publication number
- CN2808926Y CN2808926Y CN 200520007239 CN200520007239U CN2808926Y CN 2808926 Y CN2808926 Y CN 2808926Y CN 200520007239 CN200520007239 CN 200520007239 CN 200520007239 U CN200520007239 U CN 200520007239U CN 2808926 Y CN2808926 Y CN 2808926Y
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- wire
- magnesium
- cored
- molten iron
- powder
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The utility model relates to a cored wire with magnesium wire cores for treatment and use. The utility model comprises a steel belt and a powder layer which is coated in the steel belt. The utility model is characterized in that the central position or the central zone of the powder layer is provided with an auxiliary cored wire with magnesium. When the utility model is used for the wire feeding treatment of melted iron, the utility model can effectively reduce early vaporization phenomenon due to the iron melt with the temperature of 1450-1550DEG. C intensely heating the cored wire and the magnesium in the cored wire untimely achieving vaporization temperature of 1080DEG. C in the course of the cored wire inserted in the bottom of the molten iron, and can also reduce the easy vaporization phenomenon due to oversized surfaces of matters containing magnesium particles when the cored wire is reacted with the molten iron at the bag bottom. The utility model effectively reduces the vapor pressure when the magnesium is reacted with the molten iron, raises the effective rate of the magnesium in the molten iron, reduces the treatment cost of the iron melt, raises the utilization factor of the treatment bag, uses a wire feeding method to accomplish the spheroidization and inoculation treatment course once, and reduces the investment of a wire feeding treatment device.
Description
Technical field
The utility model relate to a kind of be used for that molten iron handles contain magnesium core cored-wire.
Background technology
At present, the known magnesium cored-wire that contains all is to be made of steel band and the powder layer that is wrapped in the steel band, and the composition of powder layer is the mixture of magnesium alloy powder or pure magnesium powder and other silica-based iron alloy powder.Because when cored-wire specifically uses, be that surface from molten iron is inserted through molten iron and arrives its bottom and react, because of the evaporating point of magnesium only is 1080 ℃, and therefore the molten iron temperature that passes will be up to 1450～1550 ℃, far above the vaporization temperature of magnesium,, in passing the process of molten iron, the outer field magnesium powder cored-wire mesectoderm or near or magnesium alloy powder will be subjected to the strong preheating of high-temperature liquid metal, and moment will reach the evaporating point of magnesium, form magnesium steam.When steel band in molten iron after " dissolving " because the surface-area of magnesium powder that is wrapped up or magnesium alloy powder is excessive, the magnesium amount that participates in the molten iron reaction simultaneously is excessive, causes the evaporating capacity of magnesium excessive; These two formed magnesium steam of stage are assembled at the bottom of the molten iron pack processing, have formed bigger magnesium vapour pressure, and caused that the escape amount of magnesium from molten iron is excessive, then formed bigger scaling loss and flue gas behind the ingress of air, therefore and the problem that exists is:
When 1) carrying out the cored wire injection nodulizing of molten iron, molten iron is surging state, and pack processing need leave the usefulness of enough spaces for the molten iron boiling, and general in the scope of 350～500mm, the effective rate of utilization of pack processing is lower;
2) efficient (dissolve in magnesium in molten iron and desulfurization with magnesium sum and the percentage ratio that always adds magnesium amount ratio) of magnesium in molten iron is low, and the magnesium of overflowing from molten iron contacts afterfire with air amount is big, and is more serious to the pollution of air;
When 3) adopting wire-feeding technique that molten iron is carried out nodularization and inoculation at the same time, compare with pouring law technology, cored wire injection nodulizing handle the cost reduced be not enough to remedy line feeding inoculation invar band shared ratio increased breeds cost;
4) wire-feeding technique must adopt task equipment to realize, therefore the equipment input must be arranged.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, provide a kind of and can reduce the evaporating capacity of magnesium in passing the molten iron process, the evaporating capacity in the time of reducing magnesium and react with molten iron again at the bag end, thus the utilization ratio of raising magnesium in molten iron; Can realize that a cored-wire finishes the nodularization of molten iron and inoculation process, reduces line feeding equipment input, can reduce again cored-wire manufacturing cost, and can realize cleaning fully produce and efficient application contain magnesium core cored-wire.
The purpose of this utility model is realized by following mode:
The magnesium core cored-wire that contains of the present utility model comprises steel band and the powder layer that is wrapped in the steel band, and it is characterized in that: central position or central zone at powder layer are provided with a magniferous sub-cored-wire.
Being located at the magniferous sub-cored-wire that contains magnesium core cored-wire middle part is to be made of steel band and the magniferous powder that is wrapped in the steel band.
The utility model has the advantages that:
1) contains magnesium core cored-wire and reduced the evaporating capacity that magnesium reacts in molten iron, improved the utilization ratio of magnesium in molten iron, reduced the surging degree of magnesium and molten iron reaction, therefore, can reduce the utilization coefficient of cored wire injection nodulizing processing cost, raising pack processing;
2) owing to the effect of double-deck steel band, compare, under same treatment condition with existing cored-wire, wire-feeding velocity can be reduced by 30～50%, therefore, reduce the magnesium amount that adds in molten iron in the unit time effectively, be beneficial to the vapour pressure when reducing magnesium and molten iron reaction, improve the utilization ratio of magnesium in molten iron;
3) contain magnesium core cored-wire and can realize cored wire injection nodulizing and breed once finishing, strengthened the core iron ratio of cored-wire, reduced steel band as the negative impact of carrier adding to processing cost, simultaneously, reduced by a feeding wire machine passage, simplified the treatment station structure, reduced the equipment input;
4) because in the line feeding process, but contain the built-in sub-cored-wire and the skin deform in same pace of magnesium core cored-wire, therefore, do not need the integer feeding wire machine can realize that the line feeding of core cored-wire handles, current device is promptly satisfied the demand.
Description of drawings
Fig. 1 is the structural representation that contains magnesium core cored-wire of the present utility model.
Embodiment
With reference to accompanying drawing, the magnesium core cored-wire that contains of the present utility model comprises steel band 1 and the powder layer 2 that is wrapped in the steel band 1, is provided with a magniferous sub-cored-wire in the central position or the central zone of powder layer 2.Magniferous sub-cored-wire is to be made of steel band 3 and the magniferous powder 4 that is wrapped in the steel band 3, particularly: be by steel band 3 mixture of pure magnesium powder or pure magnesium powder and silicon-base alloy powder or Si-Mg alloy powder to be wrapped up by the cored-wire machine making.Steel band 3 thickness that magniferous sub-cored-wire adopted are 0.2～0.4mm, powder 4 granularities≤2.0mm, the line of magniferous sub-cored-wire directly is 4～10mm, used magnesium powder or magnesium grain can be unpassivated, also through transpassivation; As adopt magnesium powder or magnesium grain, and then shared weight percent is 20～100% in powder, remaining is the silicon-base alloy powder; Used silicon-base alloy powder can be as required selected its one or more mixture in following powder, the powder kind has ferrosilicon powder, silicon barium powder, rare earth silicon iron powder, silicon calcium powder, silicon barium calcium powder; As adopt the high magnesium silicon-base alloy powder (Si-Mg alloy powder) of smelting, and then the content of magnesium is 20～50% (mass percents) in the alloy, all the other compositions are silicon, rare earth, calcium and iron etc.The thickness that contains the outer steel band 1 of magnesium core cored-wire is 0.35～0.6mm, and line directly is 12～18mm.Powder in the powder layer 2 is intimate equally distributed around magniferous sub-cored-wire.Powder layer 2 thickness between steel band 1 and its magniferous sub-cored-wire in middle part are between 2～8mm, and the granularity of powder is :≤3.5mm.When containing magnesium core cored-wire and insert liquid molten iron, the magnesium line that protection is in the cored-wire central part can not reach vaporization temperature too early and produce vaporization phenomenon because of the strong preheating of molten iron.Wrap up after powder layer 2 is filled by alloy, metal or nonmetal powder and constituting, it mainly acts on is when playing heat-blocking action, plays the effect to the breeding of molten iron, alloying, desulfurization, deoxidation and fine setting composition again.The selectivity that requires according to processing intent and processing molten iron adds.As: wherein one or more mixtures that add ferrosilicon, Si-Ba alloy, silicocalcium or Si-Ba-Ca alloy, rare earth ferrosilicon alloy, silicon-zirconium, silicon strontium alloy can be made into has the powder layer that difference breeds function, in the powder layer 2 ratio of each constituent element according to the condition of base iron, required pregnant amount size, breed intensity, anti-ageingly move back the time requirement decision; In powder layer, add an amount of yttrium-base heavy rare earth alloy powder and can be made into powder layer with long-acting inoculation(effect); Add silicon carbide or graphite, except that possessing inoculation(effect), also have the function of adjusting the molten iron composition; Add carbide of calcium and calcium oxide etc., be applicable to the desulfurization pre-treatment of molten iron and handle the secondary nodularization (improving residual magnesium amount) of back molten iron but do not influence the composition of molten iron; Add deslagging agent or perlite, help improving the purity of molten iron, the inclusion in the removal molten iron; Add iron sulphide, ferric oxide, rare earth ferrosilicon, can adjust the final-sulphur content of molten iron, and increase forming core core, increase number of graphite ball, refinement graphite pebbles; In powder layer 2, add silicon bismuth alloy powder or silicon antimony alloy powder, the effect that can play crystal grain thinning, improves ferrite or content of pearlite in alloy.The composition of the proportioning of each constituent element and formed nucleating agent is the public technology of industry in above-mentioned powder layer 2, the powder 4, can prepare with reference to given composition and the add-on of casting handbook.
The course of processing that contains magnesium core cored-wire is to realize through the course of processing of twice cored-wire: the envelope curve process is to make magniferous sub-cored-wire by steel band 3 parcel powders 4 earlier for the first time, is arranged into the coil of wire.
For the second time the envelope curve process is the central zone that above-mentioned magniferous sub-cored-wire is placed powder layer 2, wraps up with steel band 1 forming.
Claims (4)
1. one kind contains magnesium core cored-wire, comprises steel band and the powder layer that is wrapped in the steel band, and it is characterized in that: central position or central zone at powder layer are provided with a magniferous sub-cored-wire.
2. the magnesium core cored-wire that contains according to claim 1 is characterized in that: magniferous sub-cored-wire is to be made of steel band and the magniferous powder that is wrapped in the steel band.
3. according to the described magnesium core cored-wire that contains of claim 2, it is characterized in that: the magniferous powder in the magniferous sub-cored-wire is the mixture of pure magnesium powder or pure magnesium powder and silicon-base alloy powder.
4. according to the described magnesium core cored-wire that contains of claim 2, it is characterized in that: the magniferous powder in the magniferous sub-cored-wire is the Si-Mg alloy powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520007239 CN2808926Y (en) | 2005-02-21 | 2005-02-21 | Magnesium-wire cladded wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520007239 CN2808926Y (en) | 2005-02-21 | 2005-02-21 | Magnesium-wire cladded wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2808926Y true CN2808926Y (en) | 2006-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520007239 Expired - Fee Related CN2808926Y (en) | 2005-02-21 | 2005-02-21 | Magnesium-wire cladded wire |
Country Status (1)
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| CN (1) | CN2808926Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344989A (en) * | 2010-08-06 | 2012-02-08 | 营口亚泰化工有限公司 | Pretreatment method of molten iron for desulfurization by wire feeding method |
| WO2012027866A1 (en) * | 2010-09-03 | 2012-03-08 | 安帝铁合金(天津)有限公司 | Multi-layer cored wire |
| CN103074467A (en) * | 2013-02-01 | 2013-05-01 | 浙江宝信新型炉料科技发展有限公司 | Solid metal magnesium alloy core-spun yarn for steelmaking desulfuration and manufacture method of solid metal magnesium alloy core-spun yarn |
| CN103255334A (en) * | 2013-03-15 | 2013-08-21 | 成都宏源铸造材料有限公司 | Camshaft specialized inoculant |
| CN104131136A (en) * | 2014-08-19 | 2014-11-05 | 马鞍山中科冶金材料科技有限公司 | Material for desulfurizing molten iron and molten steel and preparation method thereof |
| CN112296287A (en) * | 2020-09-27 | 2021-02-02 | 甘肃酒钢集团宏兴钢铁股份有限公司 | High-carbon steel inclusion control method |
| CN114075618A (en) * | 2021-11-22 | 2022-02-22 | 国铭铸管股份有限公司 | Inoculation material for smelting nodular cast iron and preparation process thereof |
-
2005
- 2005-02-21 CN CN 200520007239 patent/CN2808926Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344989A (en) * | 2010-08-06 | 2012-02-08 | 营口亚泰化工有限公司 | Pretreatment method of molten iron for desulfurization by wire feeding method |
| CN102344989B (en) * | 2010-08-06 | 2013-05-29 | 辽宁亚泰新型建材科技有限公司 | Pretreatment method of molten iron for desulfurization by wire feeding method |
| WO2012027866A1 (en) * | 2010-09-03 | 2012-03-08 | 安帝铁合金(天津)有限公司 | Multi-layer cored wire |
| CN103074467A (en) * | 2013-02-01 | 2013-05-01 | 浙江宝信新型炉料科技发展有限公司 | Solid metal magnesium alloy core-spun yarn for steelmaking desulfuration and manufacture method of solid metal magnesium alloy core-spun yarn |
| CN103074467B (en) * | 2013-02-01 | 2015-12-23 | 浙江宝信新型炉料科技发展有限公司 | A kind of solid metal Mg alloy cored wine for steel desulfurization and preparation method thereof |
| CN103255334A (en) * | 2013-03-15 | 2013-08-21 | 成都宏源铸造材料有限公司 | Camshaft specialized inoculant |
| CN104131136A (en) * | 2014-08-19 | 2014-11-05 | 马鞍山中科冶金材料科技有限公司 | Material for desulfurizing molten iron and molten steel and preparation method thereof |
| CN104131136B (en) * | 2014-08-19 | 2016-03-16 | 马鞍山中科冶金材料科技有限公司 | A kind of molten iron, molten steel desulfurizing material and preparation method thereof |
| CN112296287A (en) * | 2020-09-27 | 2021-02-02 | 甘肃酒钢集团宏兴钢铁股份有限公司 | High-carbon steel inclusion control method |
| CN114075618A (en) * | 2021-11-22 | 2022-02-22 | 国铭铸管股份有限公司 | Inoculation material for smelting nodular cast iron and preparation process thereof |
| CN114075618B (en) * | 2021-11-22 | 2023-01-06 | 国铭铸管股份有限公司 | Inoculation material for smelting nodular cast iron and preparation process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |