CN204174226U - A kind of calcium heart yearn of multilayered structure - Google Patents
A kind of calcium heart yearn of multilayered structure Download PDFInfo
- Publication number
- CN204174226U CN204174226U CN201320550788.4U CN201320550788U CN204174226U CN 204174226 U CN204174226 U CN 204174226U CN 201320550788 U CN201320550788 U CN 201320550788U CN 204174226 U CN204174226 U CN 204174226U
- Authority
- CN
- China
- Prior art keywords
- calcium
- layer
- middle layer
- multilayered structure
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model belongs to steel-making furnace outer refining technology, relates to the pure calcium line of the real core of a kind of steel liquid deoxidation Calcium treatment multilayer.This line comprises the pure calcium line of metal as inner core, and surrounding layer, it is characterized in that, be provided with one deck or two-layer middle layer between described inner core and surrounding layer, described surrounding layer is coated on middle layer outside surface, and middle layer is coated on interior core outer surface successively.This product adds at least one middle layer in common pure calcium core-spun yarn, to increase the material layer total thickness beyond internal core wire in form, simultaneously due to the axial open-ended in middle layer, the snappiness of cored-wire can be ensured, make again its difficulty of processing and manufacturing cost significantly reduce, use convenient.Improve the recovery rate of calcium metal, and expulsion problem when effectively can solve molten steel Calcium treatment.
Description
Technical field
The utility model belongs to steel-making furnace outer refining technology, relates to the pure calcium line of the real core of a kind of steel liquid deoxidation Calcium treatment multilayer.
Background technology
Calcium treatment is a kind of liquid steel refining means that 20 century 70s grow up.Its main purpose comprises: (1) degree of depth reduces the harmful element content such as [O], [S] in steel; (2) change inclusion composition form, avoid cast aluminum killed steel generation nozzle clogging and improve steel mechanics performance.
In history, once had and directly added calcium alloy, the methods such as calcium alloy of jetting in molten steel in ladle, but because treatment effect is unstable or the reason such as high cost is gradually eliminated, application now be that calcium line method fed by ladle.It is that calcium alloy (Ca, Ca-Si, Ca-Fe etc.) sheetmetal parcel is made cored-wire, by the guide wire of wire feeder, it is inserted molten steel with very high speed.Feed simultaneously with stirring of inert gas in silk process, to increase the residence time of Ca steam bubble in molten steel and to carry out good mixing.This method is widely applied and achieves howling success in global iron and steel enterprise.The main treatment effect that calcium line fed by ladle has:
(1) reduce [S] in molten steel, reduce sulfide inclusion content, finally form CaS and be distributed in steel, can not be out of shape when rolling.
(2) oxide inclusion in molten steel does not form string tufted and changes into homodisperse containing Ca oxide inclusion, thus reduces inclusion size, improves molten steel cleanness.
(3) in Al killed steel, Ca is added, easily Al
2o
3be mingled with liquefy calcium-aluminate, be convenient to its and be polymerized floating of growing up, thus prevention of immersed nozzle clogging.
But due to the fusing point of calcium metal low (845 DEG C), boiling point low (1450 DEG C), very easily floats in molten steel that slag reacts with the oxide compound in the oxygen in air and slag liquid on the surface and scaling loss is fallen.So cored-wire is fed into molten metal deep when feeding silk as far as possible, utilizes the static pressure of molten metal, prevent calcium metal Quick-gasifying, thus extend calcium metal residence time in molten steel, good Calcium treatment effect is played to molten steel.
The calcic of existing several types or the cored-wire of calcium alloy still have lower column defects: siliceous low calcium alloy cored-wire, such as CaSi, and its shortcoming is that molten steel increases silicon in external refining process.Therefore low Si steel grade is not suitable for; Containing calcium silicon grain or abrasive grit mixture cored-wire, such as Fe+Ca pulvis cored-wire, its shortcoming is, because granulated metal calcium specific surface area is large, calcium metal is easily oxidized.In addition, under refining temperature, when after surrounding layer fusing, exposed calcium metal Quick-gasifying, easily causes slag liquid level fierceness seethe and splash, and reduces the recovery rate of calcium.For above-mentioned reasons, the recovery rate of its calcium metal is generally 10% ~ 15%.
The cored-wire of " a kind of cored-wire and manufacture method thereof " (CN101942542A) disclosed in China Intellectual Property Office on 01 12nd, 2011, be made up of nexine core material and exoperidium, exoperidium is formed by steel band (0.42-0.5mm is thick) winding, and nexine core material is the pure calcium of real core metal.Expect to obtain higher recovery rate, but because of its surrounding layer thinner, feeding molten steel after, cored-wire melts very soon, and softening under the effect of high temperature, cored-wire cannot penetrate molten steel and enter depths, though adopt the pure calcium of metal, recovery rate also only has 15% ~ 25%, and splash is serious.
The cored-wire making method of " manufacture method of the real core spun yarn of high pure metal calcium " (CN101914655A) disclosed in 15 days December in 2010 of China Intellectual Property Office, be made up of nexine core material and exoperidium, nexine core material is high pure metal calcium, and exoperidium is formed by Low Carbon Steel Pipe drawing.Expect high pure metal calcium to be fed into molten steel depths, obtain higher recovery rate.But that its shortcoming is difficulty of processing is large, cost is high, during feeding molten steel, difficulty is comparatively large, sometimes also will carry out anneal to work in-process cored-wire.
General single layer structure cored-wire result of use conventional in prior art is as follows, after the 150 tons of LF stoves refining of certain steel mill, carry out refining Calcium treatment, its cored-wire physical and chemical index and line feeding effect as follows:
(1) the pure calcium core-spun yarn diameter (unrepeatered transmission) of real core: 8.1mm;
(2) steel band that surrounding layer: 0.55mm is thick;
(3) as the calcium core line diameter 7.0mm of inner core;
(4) every meter of weight (gram): steel band 152, calcium core 60.
The result of use of above-mentioned cored-wire in following molten steel is:
| Sequence number | Steel grade | Molten steel amount (ton) | Feed quantity (m/ stove) | Wire-feeding velocity (m/s) | Ca recovery rate (%) | Line feeding situation | Spraying state |
| 1 | 40Gr | 153 | 180 | 1.2 | 18.25 | Do not skid | Slight splash |
| 2 | 40Cr | 155 | 180 | 1.2 | 17.92 | Do not skid | Slight splash |
| 3 | 40Cr | 148 | 180 | 1.2 | 18.63 | Do not skid | Slight splash |
| 4 | 40Cr | 151 | 180 | 1.2 | 18.42 | Do not skid | Slight splash |
| 5 | 40Cr | 152 | 180 | 1.2 | 16.92 | Do not skid | Slight splash |
| 6 | 40Cr | 149 | 180 | 1.2 | 18.46 | Do not skid | Slight splash |
| Mean value | 18.10 |
In the following example, for the selection in middle layer, if use steel sheet material, its shape is the approximate circle column of hollow cylindrical or hollow, mate with the internal surface of calcium core outer surface and surrounding layer, its cylindric or approximate circle column is by after the steel sheet material forming middle layer is bending, is set in that described surrounding layer inner position forms.On wherein in cylindric or approximate columned steel sheet material cylinder, there is axially open, this opening is close contact shape, the both sides that close contact shape alleged herein refers to opening can not occur overlapping phenomenon, in docking or must be similar to the attitude of docking, slit therebetween is generally not more than 0.5mm.
If the middle layer used is pulverulent material loading layers, it can be filled between calcium core and steel plate middle layer, also can be filled between steel plate middle layer and surrounding layer, certainly for the situation only having one deck middle layer, also can directly be filled between calcium core and surrounding layer.The powder of filling unlike material mainly considers there is certain alloy fine setting effect by the needs of different steel grade simultaneously.
Above-mentioned intermediate layer thickness range of choice is 0.3 ~ 1.3mm.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art part, a kind of calcium heart yearn of multilayered structure is provided, this product adds at least one middle layer in common pure calcium core-spun yarn, to increase the material layer total thickness beyond internal core wire in form, simultaneously due to the axial open-ended in middle layer, the snappiness of cored-wire can be ensured, make again its difficulty of processing and manufacturing cost significantly reduce, use convenient.
The purpose of this utility model realizes being completed by following technical scheme:
A calcium heart yearn for multilayered structure, comprises the pure calcium line of metal as inner core, and surrounding layer, it is characterized in that, be provided with one deck or two-layer middle layer between described inner core and surrounding layer, described surrounding layer is coated on middle layer outside surface, and middle layer is coated on interior core outer surface successively.
At least the described middle layer of one deck is the approximate circle column of hollow cylindrical or hollow, and described cylindric or approximate circle column is by after the steel sheet material forming described middle layer is bending, is set in that described surrounding layer inner position forms.
Described cylindric or approximate columned cylinder has axially open.
Described opening is close contact shape.The both sides that close contact shape alleged herein refers to opening do not overlap, and in docking or approximate attitude of docking, slit therebetween is generally not more than 0.5mm.
At least the described middle layer of one deck is pulverulent material loading layers.
Described intermediate layer thickness is 0.3 ~ 1.3mm.
Described pulverulent material loading layers is following material: one or more the mixture in ferrosilicon powder, iron, aluminium, calcium, magnesium, manganese, chromium, ferrochrome, silico-calcium, boron, sulphur, carbon, titanium, vanadium, molybdenum, rare earth, calcium carbonate, calcium oxide, carbide of calcium, calcium aluminate etc.
The diameter of described inner core is 3 ~ 10mm.
The utility model has the advantages that, due to the existence in middle layer, can according to the size of ladle, smelt the situation of steel grade, the thickness of the outer adhesion layer of adjustment calcium core and related component, when adding adhesion layer thickness outside imperial palace calcium core, still can ensure that calcium heart yearn has applicable suppleness, increase the static pressure that calcium metal is suffered when feeding molten steel depths, simultaneously, as the pulverulent fillers in middle layer, owing to there is a lot of microcosmic pore between these powder-materials, slow down the transmission of heat, reduce the gasification phenomenon of metal calcium core, thus improve the recovery rate of calcium metal, and expulsion problem when effectively can solve molten steel Calcium treatment.
Accompanying drawing explanation
Accompanying drawing 1 is embodiment four section structure schematic diagram;
Accompanying drawing 2 is embodiment one and two section structure schematic diagram.
Embodiment
As shown in Figure 1-2, label 1-4 represents inner core 1, middle layer 2, surrounding layer 3, loading layers 4 respectively.
Case study on implementation one: the specifications parameter of the present embodiment multilayered structure calcium heart yearn is as follows:
(1) the present embodiment multilayered structure calcium core line diameter: 10mm;
(2) steel band that the low-carbon (LC) that surrounding layer 3:0.5mm is thick, low silicon-carbon element steel board is formed;
(3) middle layer 2: the thick 1mm of steel band;
(4) as the calcium core line diameter 7.0mm of inner core 1;
(5) every meter of weight (gram): steel band 170, middle layer steel band 184, calcium core 60.
The result of use of the present embodiment in following molten steel is:
| Sequence number | Steel grade | Molten steel amount (ton) | Feed quantity (m/ stove) | Wire-feeding velocity (m/s) | Ca recovery rate (%) | Line feeding situation | Spraying state |
| 1 | 40Gr | 151 | 180 | 1.2 | 30.12 | Do not skid | Without splash |
| 2 | 40Cr | 154 | 180 | 1.2 | 31.06 | Do not skid | Without splash |
| 3 | 40Cr | 149 | 180 | 1.2 | 29.85 | Do not skid | Without splash |
| 4 | 40Cr | 153 | 180 | 1.2 | 29.97 | Do not skid | Without splash |
| 5 | 40Cr | 151 | 180 | 1.2 | 31.23 | Do not skid | Without splash |
| 6 | 40Cr | 150 | 180 | 1.2 | 32.56 | Do not skid | Without splash |
| Mean value | 30.80 |
Embodiment two: the specifications parameter of the multilayered structure calcium heart yearn of the present embodiment is as follows:
(1) the present embodiment multilayered structure calcium core line diameter: 11mm;
(2) steel band of the thick low-carbon (LC) of surrounding layer 3:0.5mm, low silicon-carbon element steel board formation;
(3) middle layer 2: the thick 1.5mm of steel band that low-carbon (LC), low silicon-carbon element steel board is formed;
(4) as the calcium core line diameter 7mm of inner core 1;
(5) every meter of weight (gram): steel band 168, middle layer steel band 245, calcium core 60.
The result of use of the present embodiment in following molten steel is:
| Sequence number | Steel grade | Molten steel amount (ton) | Feed quantity (m/ stove) | Wire-feeding velocity (m/s) | Ca recovery rate (%) | Line feeding situation | Splash |
| 1 | 40Gr | 151 | 180 | 1.2 | 28.54 | Skid | Without splash |
| 2 | 40Cr | 154 | 180 | 1.2 | 27.65 | Skid | Without splash |
| 3 | 40Cr | 149 | 180 | 1.2 | 28.61 | Do not skid | Without splash |
| 4 | 40Cr | 153 | 180 | 1.2 | 28.03 | Skid | Without splash |
| 5 | 40Cr | 151 | 180 | 1.2 | 29.01 | Do not skid | Without splash |
| 6 | 40Gr | 151 | 180 | 1.2 | 28.67 | Skid | Without splash |
| Mean value | 28.42 |
The present embodiment result can be seen, described intima-media thickness will control within 0.3 ~ 1.3mm scope, if too thick, still have certain feeding difficulty, recovery rate diminishes, and major cause is also skidded and caused, cored-wire is actually motionless because skid, but the line feeding of feeding wire machine wheel is still in running, thus the feed quantity causing actual feed quantity to show compared with feeding wire machine is few, causes calculating recovery rate low.
Embodiment three: the specifications parameter of the multilayered structure calcium heart yearn of the present embodiment is as follows:
(1) the present embodiment multilayered structure calcium core line diameter: 10.5mm;
(2) steel band of the thick low-carbon (LC) of surrounding layer 3:0.5mm, low silicon-carbon element steel board formation;
(3) middle layer 2: the thick 1.5mm of ferrosilicon powder;
(4) as the calcium core line diameter 7mm of inner core 1;
(5) every meter of weight (gram): steel band 168, middle layer steel band 130, calcium core 60.
The result of use of the present embodiment in following molten steel is:
| Sequence number | Steel grade | Molten steel amount (ton) | Feed quantity (m/ stove) | Wire-feeding velocity (m/s) | Ca recovery rate (%) | Line feeding situation | Splash |
| 1 | 40Gr | 151 | 180 | 1.2 | 30.12 | Do not skid | Without splash |
| 2 | 40Cr | 154 | 180 | 1.2 | 31.23 | Do not skid | Without splash |
| 3 | 40Cr | 149 | 180 | 1.2 | 30.63 | Do not skid | Without splash |
| 4 | 40Cr | 153 | 180 | 1.2 | 29.67 | Do not skid | Without splash |
| 5 | 40Cr | 151 | 180 | 1.2 | 30.82 | Do not skid | Without splash |
| 6 | 40Gr | 150 | 180 | 1.2 | 32.10 | Do not skid | Without splash |
| Mean value | 30.76 |
Embodiment four: the specifications parameter of the multilayered structure calcium heart yearn of the present embodiment is as follows:
(1) the present embodiment multilayered structure calcium core line diameter: 11.0mm;
(2) the thick steel band of surrounding layer 3:0.5mm;
(3) as the powder-material loading layers 4 in one of middle layer: the thick 1.0mm of ferrosilicon powder;
(4) steel band that the thick low-carbon (LC) of another middle layer 2:0.5mm between surrounding layer and powder-material loading layers 4, low silicon-carbon element steel board is formed;
(4) as the calcium core line diameter 7mm of inner core;
(5) every meter of weight (gram): surrounding layer steel band 186, middle layer steel band 150, the powdery bed of material 91, calcium core 60.
The result of use of the present embodiment in following molten steel is:
| Sequence number | Steel grade | Molten steel amount (ton) | Feed quantity (m/ stove) | Wire-feeding velocity (m/s) | Ca recovery rate (%) | Line feeding situation | Splash |
| 1 | 40Gr | 152 | 180 | 1.2 | 32.12 | Do not skid | Without splash |
| 2 | 40Cr | 153 | 180 | 1.2 | 33.23 | Do not skid | Without splash |
| 3 | 40Cr | 149 | 180 | 1.2 | 31.35 | Do not skid | Without splash |
| 4 | 40Cr | 151 | 180 | 1.2 | 32.67 | Do not skid | Without splash |
| 5 | 40Cr | 150 | 180 | 1.2 | 33.82 | Do not skid | Without splash |
| 6 | 40Gr | 151 | 180 | 1.2 | 34.10 | Do not skid | Without splash |
| Mean value | 32.88 |
Above-described embodiment is fed in steel molten steel by wire feeder in the refining treatment later stages such as LF, RH.
In the utility model, multilayered structure calcium heart yearn is being fed into after in molten steel, and because of the existence in middle layer, heat transmission is obstructed, and cored-wire can be fed into molten steel more depths, to slow down calcium metal fusing, gasification rate, thus improves the recovery rate of calcium metal.As can be seen from above-described embodiment, during multilayered structure calcium heart yearn uses, the recovery rate of calcium is all greater than 25%, higher than the pure calcium line more than 5% of general real core, reduces Calcium treatment cost.The phenomenon of skidding when thoroughly solving the line feeding of rear wall cored-wire in addition in an embodiment and produce in line feeding process ladle molten steel and slag fierceness seethe and the phenomenon of splashing.
The making method of the calcium heart yearn of the multilayered structure related in above-described embodiment comprises the following steps:
Pure calcium ingot is made metal calcium line on twine machine; Afterwards described metal calcium line, pulverulent material and middle layer are together imported in the steel band of the section approximate U shape be made up of steel band, afterwards by the U-shaped opening welded seal of described steel band or to carry out button seam coated.
Claims (7)
1. a calcium heart yearn for multilayered structure, comprises the pure calcium line of metal as inner core, and surrounding layer, it is characterized in that, be provided with one deck or two-layer middle layer between described inner core and surrounding layer, described surrounding layer is coated on middle layer outside surface, and middle layer is coated on interior core outer surface successively.
2. the calcium heart yearn of a kind of multilayered structure according to claim 1, it is characterized in that, at least the described middle layer of one deck is hollow cylindrical, described cylindric be by after the steel sheet material forming described middle layer is bending, be set in that described surrounding layer inner position forms.
3. the calcium heart yearn of a kind of multilayered structure according to claim 2, is characterized in that, described columned cylinder has axially open.
4. the calcium heart yearn of a kind of multilayered structure according to claim 3, is characterized in that, described opening is close contact shape.
5. the calcium heart yearn of a kind of multilayered structure according to claim 1, is characterized in that, at least the described middle layer of one deck is pulverulent material loading layers.
6. the calcium heart yearn of a kind of multilayered structure according to claim 1,2 or 5, is characterized in that, described intermediate layer thickness is 0.3 ~ 1.3mm.
7. the calcium heart yearn of a kind of multilayered structure according to claim 5, it is characterized in that, described pulverulent material loading layers is following material: one or more the mixture loading layers in ferrosilicon powder, iron, aluminium, calcium, magnesium, manganese, chromium, ferrochrome, silico-calcium, boron, sulphur, carbon, titanium, vanadium, molybdenum, rare earth, calcium carbonate, calcium oxide, carbide of calcium, calcium aluminate etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550788.4U CN204174226U (en) | 2012-09-10 | 2013-09-06 | A kind of calcium heart yearn of multilayered structure |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103317936A CN102851446A (en) | 2012-09-10 | 2012-09-10 | Multilayer-structured calcium-core wire, and manufacturing method and purpose thereof |
| CN2012103317936 | 2012-09-10 | ||
| CN201320550788.4U CN204174226U (en) | 2012-09-10 | 2013-09-06 | A kind of calcium heart yearn of multilayered structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204174226U true CN204174226U (en) | 2015-02-25 |
Family
ID=47398419
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103317936A Pending CN102851446A (en) | 2012-09-10 | 2012-09-10 | Multilayer-structured calcium-core wire, and manufacturing method and purpose thereof |
| CN201310400031.1A Active CN103451366B (en) | 2012-09-10 | 2013-09-06 | A kind ofly add calcium method for steel liquid deoxidation Calcium treatment |
| CN201320550788.4U Expired - Lifetime CN204174226U (en) | 2012-09-10 | 2013-09-06 | A kind of calcium heart yearn of multilayered structure |
| CN201310399979.XA Active CN103451365B (en) | 2012-09-10 | 2013-09-06 | A kind ofly add calcium method for steel liquid deoxidation Calcium treatment |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103317936A Pending CN102851446A (en) | 2012-09-10 | 2012-09-10 | Multilayer-structured calcium-core wire, and manufacturing method and purpose thereof |
| CN201310400031.1A Active CN103451366B (en) | 2012-09-10 | 2013-09-06 | A kind ofly add calcium method for steel liquid deoxidation Calcium treatment |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310399979.XA Active CN103451365B (en) | 2012-09-10 | 2013-09-06 | A kind ofly add calcium method for steel liquid deoxidation Calcium treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN102851446A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105132625A (en) * | 2015-09-22 | 2015-12-09 | 钢铁研究总院 | Cored wire of carbonate composite pure metal |
| CN105838847A (en) * | 2016-06-13 | 2016-08-10 | 湛江盛宝科技有限公司 | Production unit of efficient powder-coated cored wire |
| CN106521089A (en) * | 2016-11-19 | 2017-03-22 | 浙江宝信新型炉料科技发展有限公司 | Solid metallic calcium high-magnesium rare earth magnesium alloy composite core-spun yarn |
| CN106521090A (en) * | 2016-11-19 | 2017-03-22 | 浙江宝信新型炉料科技发展有限公司 | Solid calcium metal, rare earth-barium-molybdenum-containing titanium nitride and silicon alloy composite core-spun yarn |
| CN106521088A (en) * | 2016-11-19 | 2017-03-22 | 浙江宝信新型炉料科技发展有限公司 | Solid metal calcium and magnesium-rare earth alloy composite core-spun cable |
| CN107686901A (en) * | 2016-08-04 | 2018-02-13 | 中国科学院金属研究所 | A kind of high purity nickel or high temperature alloy smelting process using pure calcium line |
| CN108103265A (en) * | 2016-11-24 | 2018-06-01 | 丹阳市宏光机械有限公司 | A kind of pure calcium line of refining furnace splashproof |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924034B (en) * | 2014-04-08 | 2015-09-30 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium magnesium cored-wire and application thereof and Ti Alloying molten steel and preparation method thereof and a kind of titaniferous steel alloy |
| 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 |
| CN106480254A (en) * | 2016-11-19 | 2017-03-08 | 浙江宝信新型炉料科技发展有限公司 | A kind of solid calcium metal and contain rare earth, niobium, vanadium, boron high titanium titanium silicon nitride alloyed powder composite core-spun yarn |
| CN106399630A (en) * | 2016-11-19 | 2017-02-15 | 浙江宝信新型炉料科技发展有限公司 | Solid calcium metal, silicon iron and high-magnesium rare earth-magnesium alloy composite cored wire |
| CN106399631A (en) * | 2016-11-19 | 2017-02-15 | 浙江宝信新型炉料科技发展有限公司 | Composite cored wire comprising solid calcium metal and high-magnesium alloy containing multiple elements |
| CN106636549A (en) * | 2016-11-19 | 2017-05-10 | 浙江宝信新型炉料科技发展有限公司 | Solid metallic calcium and high-titanium titanium-silicon nitride alloy powder composite cored wire |
| CN106399637A (en) * | 2016-11-19 | 2017-02-15 | 浙江宝信新型炉料科技发展有限公司 | Composite cored wire comprising solid calcium metal, silicon iron and magnesium-rare earth alloy containing multiple elements |
| CN106636548A (en) * | 2016-11-19 | 2017-05-10 | 浙江宝信新型炉料科技发展有限公司 | Solid metal calcium titanium-silicon nitride alloy powder composite core-spun yarn |
| CN106636552A (en) * | 2016-11-19 | 2017-05-10 | 浙江宝信新型炉料科技发展有限公司 | Composite cored wire composed of solid calcium metal, silicon iron and titanium-silicon nitride alloy containing rare earth, barium and molybdenum |
| CN106636551A (en) * | 2016-11-19 | 2017-05-10 | 浙江宝信新型炉料科技发展有限公司 | Composite cored wire of solid metal calcium and magnesium-rare earth alloy containing various elements |
| CN106555026A (en) * | 2016-11-19 | 2017-04-05 | 浙江宝信新型炉料科技发展有限公司 | A kind of solid calcium metal and contain rare earth, niobium, vanadium, boron titanium silicon nitride alloyed powder composite core-spun yarn |
| CN106521091A (en) * | 2016-11-19 | 2017-03-22 | 浙江宝信新型炉料科技发展有限公司 | Solid metal calcium and rare-earth, barium and molybdenum-containing high-titanium titanium-silicon nitride alloy powder composite core-spun cable |
| CN106636553A (en) * | 2016-11-19 | 2017-05-10 | 浙江宝信新型炉料科技发展有限公司 | Solid metallic calcium, silicon iron and multi-element high-magnesium alloy composite cored wire |
| CN106636547A (en) * | 2016-11-19 | 2017-05-10 | 浙江宝信新型炉料科技发展有限公司 | Solid metal calcium and silicon iron and rare earth, barium and molybdenum-containing high-titanium titanium-silicon nitride alloy powder composite cored wire |
| KR101899691B1 (en) | 2016-12-23 | 2018-10-31 | 주식회사 포스코 | Pressure vessel steel plate with excellent hydrogen induced cracking resistance and manufacturing method thereof |
| CN108060286B (en) * | 2017-07-26 | 2020-06-05 | 内蒙古圣泉科利源新材料科技有限公司 | Production method of vermicular cored wire |
| CN109234492A (en) * | 2018-11-23 | 2019-01-18 | 辽宁科技学院 | A kind of calcium line splash inhibitor and calcium core-spun yarn and preparation method thereof |
| CN111139336A (en) * | 2020-01-20 | 2020-05-12 | 五矿营口中板有限责任公司 | Deoxidized alloy cored wire for improving welding performance of steel and manufacturing method thereof |
| CN113549731B (en) * | 2021-07-14 | 2022-11-18 | 鞍钢股份有限公司 | Method for reducing aluminum killed steel inclusions |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7803465B2 (en) * | 2008-06-17 | 2010-09-28 | Specialty Minerals (Michigan) Inc. | Strand cladding of calcium wire |
| CN201785436U (en) * | 2010-09-03 | 2011-04-06 | 安帝铁合金(天津)有限公司 | Novel multi-layer cored wire center line |
| CN201785437U (en) * | 2010-09-03 | 2011-04-06 | 安帝铁合金(天津)有限公司 | Novel middle thread of core-spun thread |
| CN101921893A (en) * | 2010-09-27 | 2010-12-22 | 周海涛 | Solid calcium metal cored wire for deoxidation in steel making |
| CN102206732B (en) * | 2011-05-21 | 2013-08-28 | 马鞍山中冶钢铁冶金高新技术有限公司 | Solid-core passivated pure calcium cored wire and manufacturing method thereof |
| CN202090014U (en) * | 2011-05-21 | 2011-12-28 | 马鞍山中冶钢铁冶金高新技术有限公司 | Solid-core passivated pure calcium core-spun yarn |
| CN202297669U (en) * | 2011-09-06 | 2012-07-04 | 钢铁研究总院 | Wire feeder guiding device for inhibiting alloy oxidation and preventing nitriding |
| CN202272913U (en) * | 2011-10-09 | 2012-06-13 | 湖北亚克新材料有限公司 | High-efficiency composite cored wire |
| CN102433491B (en) * | 2011-12-02 | 2014-10-08 | 沈阳工业大学 | Novel wire feeding method in casting process |
| CN202415601U (en) * | 2012-04-10 | 2012-09-05 | 上海马腾新型材料厂 | Steel-making solid calcium line composite cored wire |
| CN102586542A (en) * | 2012-04-10 | 2012-07-18 | 上海马腾新型材料厂 | Metal calcium core composite cored wire and preparation method thereof |
-
2012
- 2012-09-10 CN CN2012103317936A patent/CN102851446A/en active Pending
-
2013
- 2013-09-06 CN CN201310400031.1A patent/CN103451366B/en active Active
- 2013-09-06 CN CN201320550788.4U patent/CN204174226U/en not_active Expired - Lifetime
- 2013-09-06 CN CN201310399979.XA patent/CN103451365B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105132625A (en) * | 2015-09-22 | 2015-12-09 | 钢铁研究总院 | Cored wire of carbonate composite pure metal |
| CN105838847A (en) * | 2016-06-13 | 2016-08-10 | 湛江盛宝科技有限公司 | Production unit of efficient powder-coated cored wire |
| CN107686901A (en) * | 2016-08-04 | 2018-02-13 | 中国科学院金属研究所 | A kind of high purity nickel or high temperature alloy smelting process using pure calcium line |
| CN107686901B (en) * | 2016-08-04 | 2019-03-29 | 中国科学院金属研究所 | A kind of high purity nickel or high temperature alloy smelting process using pure calcium line |
| CN106521089A (en) * | 2016-11-19 | 2017-03-22 | 浙江宝信新型炉料科技发展有限公司 | Solid metallic calcium high-magnesium rare earth magnesium alloy composite core-spun yarn |
| CN106521090A (en) * | 2016-11-19 | 2017-03-22 | 浙江宝信新型炉料科技发展有限公司 | Solid calcium metal, rare earth-barium-molybdenum-containing titanium nitride and silicon alloy composite core-spun yarn |
| CN106521088A (en) * | 2016-11-19 | 2017-03-22 | 浙江宝信新型炉料科技发展有限公司 | Solid metal calcium and magnesium-rare earth alloy composite core-spun cable |
| CN108103265A (en) * | 2016-11-24 | 2018-06-01 | 丹阳市宏光机械有限公司 | A kind of pure calcium line of refining furnace splashproof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103451366B (en) | 2016-04-13 |
| CN102851446A (en) | 2013-01-02 |
| CN103451365A (en) | 2013-12-18 |
| CN103451365B (en) | 2016-01-27 |
| CN103451366A (en) | 2013-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204174226U (en) | A kind of calcium heart yearn of multilayered structure | |
| CN106834960B (en) | A kind of automobile using boracic top grade gear steel and its production technology | |
| CN100465291C (en) | Production tech. of low carbon low silicon aluminium killed steel | |
| CN100587098C (en) | Micro-alloying steel for oil gas transport seamless pipeline and its preparation method | |
| CN110229992B (en) | Smelting production method of titanium microalloyed low-cost Q355B steel plate | |
| CN100453686C (en) | Casting high boron abrasion-proof stainless steel containing high hardness boride and preparation method thereof | |
| CN111218619A (en) | Preparation process of low-carbon aluminum killed clean steel with slag blocking and wire feeding functions | |
| CN111440981B (en) | Low-carbon silicon-aluminum-control killed clean steel process | |
| CN101760582B (en) | Smelting method for controlling content of nitrogen in low-carbon steel | |
| CN101492758B (en) | Method for controlling non-metallic inclusion in pipeline steel | |
| CN103556081B (en) | A kind of wear-resisting excavator bucket teeth steel of high-strength and high ductility and manufacture method thereof | |
| CN107201422A (en) | A kind of production method of mild steel | |
| CN104278197A (en) | Smelting method of steel for low-silicon high-titanium welding wire | |
| CN102559983A (en) | Method for preventing nitrogen increase of molten steel in converter tapping process | |
| CN103194573B (en) | Method for treating molten steel calcium, composite calcium line and method for manufacturing steel | |
| CN111041367B (en) | Method for preventing carbon high-silicon low-manganese steel from flocculating in billet | |
| CN102400052B (en) | Preparation method of narrow-hardenability pinion steel | |
| CN105803156B (en) | Oxide control method for improving magnesium yield | |
| CN102962411B (en) | Production method of low-carbon and medium-carbon steel | |
| CN102796846B (en) | Composite cored wire for steelmaking and preparation method thereof | |
| CN102634640A (en) | Nickel-magnesium alloy cored wire for final deoxidation of low-carbon molten steel | |
| CN108796172A (en) | Improve the smelting process of heavy rail steel cleanness | |
| CN114855066A (en) | Production method for reducing transverse cracks of boron-containing billet surface angle in short-process production | |
| RU2723863C1 (en) | Wire with filler for out-of-furnace treatment of metallurgical melts | |
| CN113718081A (en) | Method for increasing number of continuous drawing furnaces of sulfur-containing gear steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150225 |
|
| CX01 | Expiry of patent term |