CN102206783A - Molten steel alloying cored wire and method - Google Patents
Molten steel alloying cored wire and method Download PDFInfo
- Publication number
- CN102206783A CN102206783A CN 201110120993 CN201110120993A CN102206783A CN 102206783 A CN102206783 A CN 102206783A CN 201110120993 CN201110120993 CN 201110120993 CN 201110120993 A CN201110120993 A CN 201110120993A CN 102206783 A CN102206783 A CN 102206783A
- Authority
- CN
- China
- Prior art keywords
- molten steel
- wire
- vanadium
- alloy
- cored
- 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.)
- Granted
Links
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses a molten steel alloying cored wire and a molten steel alloying method, which can improve the recovery rate of vanadium, prevent wire lockage and breakage, and facilitates feeding the cored wire. The cored wire comprises a core layer and a skin, wherein the core layer contains a vanadium nitride alloy and an aluminum metal. The method mainly comprises the following steps of: adding a calcium-silicon alloy into the core layer of the cored wire; and feeding the cored wire into the molten steel. By adding the calcium-silicon alloy into the core layer, the free oxygen content in the molten steel can be reduced, and the possibility of combining vanadium and oxygen is reduced, so that more vanadium participates in alloying to improve the recovery rate of the vanadium.
Description
Technical field
The present invention relates to a kind of be used to the realize cored-wire of molten steel vanadium, nitrogen alloying and the method that is used to realize molten steel vanadium, nitrogen alloying.
Background technology
Alloy of vanadium nitride is a kind of novel alloy additive, can substitute the production that vanadium iron is used for microalloyed steel.Alloy of vanadium nitride makes an addition to the comprehensive mechanical performances such as intensity, toughness, ductility and thermal fatigue resistance that can improve steel in the steel, and makes steel have good weldability.Reaching under the same intensity, adding vanadium nitride and save vanadium add-on 30～40%, and then reduced cost.Alloy of vanadium nitride can be used for structure iron, tool steel, and pipe line steel is in reinforcing bar and the cast iron.Alloy of vanadium nitride is applied to can carry out effective vanadium, nitrogen microalloying simultaneously in the high-strength low-alloy steel, and what promote carbon in the steel, vanadium, nitrogen compound separates out more effective performance sedimentation reinforcement and crystal grain thinning effect.
Because directly that alloy of vanadium nitride is lower with the rate of recovery that block-shape morphology adds in the molten steel, so mainly be to realize molten steel vanadium, nitrogen alloying in the prior art by the method that in molten steel, feeds cored-wire.This method is block or the physical method fragmentation of spherical alloy of vanadium nitride, packs into cored-wire with iron sheet or sheetmetal again, and alloy of vanadium nitride forms the sandwich layer of cored-wire, and iron sheet or sheetmetal form the crust of cored-wire; Then with above-mentioned cored-wire by in the molten steel in the Yarn feeding device feeding ladle, make molten steel vanadium, nitrogen alloying.This kind method vanadium, the nitrogen alloying element rate of recovery are higher, and vanadium recovery is 88～95%, and nitrogen recovery is 70～90%.But this kind method has the following disadvantages: vanadium recovery is still lower, and the fluctuating range of vanadium recovery and nitrogen recovery is bigger, influences the stability of quality product.
In addition, Chinese patent 200610020447.0 discloses a kind of cored-wire that is used to realize molten steel vanadium, nitrogen alloying, and this cored-wire comprises steel crust and the sandwich layer of being made by alloy of vanadium nitride.This cored-wire also the problems referred to above can occur when reality is used.
Summary of the invention
The technical problem that the present invention solves provides a kind of cored-wire that is used for the molten steel alloying that improves vanadium recovery.
The technical solution adopted for the present invention to solve the technical problems is: be used for the cored-wire of molten steel alloying, comprise sandwich layer, described sandwich layer contains alloy of vanadium nitride, and described sandwich layer also contains silicocalcium.
Further be: the alloy of vanadium nitride of described sandwich layer and silicocalcium all are powder, and the particle diameter of described powder is smaller or equal to 5mm.
Further be: described sandwich layer also contains the iron alloy additive, described alloy of vanadium nitride, the content of silicocalcium and iron alloy additive is by weight percentage: alloy of vanadium nitride: 50%～90%, silicocalcium: 10%～40%, the iron alloy additive: 0～40%, wherein, described iron alloy additive is at least a in the following alloy: ferro-titanium, ferrocolumbium, ferro-vanadium.
Further be: the iron alloy additive of described sandwich layer is a powder, and the particle diameter of described powder is smaller or equal to 5mm.
The present invention also provides a kind of method that is used for the molten steel alloying, and this method can improve the rate of recovery of vanadium.
This method may further comprise the steps:
A, make cored-wire, comprise the sandwich layer of making cored-wire and sandwich layer is wrapped to form cored-wire by crust, wherein, the sandwich layer of described cored-wire contains alloy of vanadium nitride and silicocalcium;
B, cored-wire that steps A is made are by the molten steel in the Yarn feeding device feeding ladle.
Further be: the alloy of vanadium nitride of the sandwich layer in the described steps A and silicocalcium all are powder, and the particle diameter of described powder is smaller or equal to 5mm.
Further be: the sandwich layer in the described steps A also contains the iron alloy additive, described alloy of vanadium nitride, the content of silicocalcium and iron alloy additive is by weight percentage: alloy of vanadium nitride: 50%～90%, silicocalcium: 10%～40%, the iron alloy additive: 0～40%, wherein, described iron alloy additive is at least a in the following alloy: ferro-titanium, ferrocolumbium, ferro-vanadium.
Further be: the iron alloy additive of described sandwich layer is a powder, and the particle diameter of described powder is smaller or equal to 5mm.
Further be: among the described step B, on one side with cored-wire by the molten steel in the Yarn feeding device feeding ladle, on one side ladle is rocked.
Further be: among the described step B, on one side with cored-wire by the molten steel in the Yarn feeding device feeding ladle, on one side to cored-wire and the molten steel contact area rare gas element of jetting.
The invention has the beneficial effects as follows: in cored-wire feeding molten steel process, because the avidity of silicon, calcium and oxygen is far above the avidity of vanadium and oxygen, so silicon, calcium at first with molten steel in free oxygen combination, thereby the free oxygen level of molten steel is significantly reduced, this is with regard to corresponding vanadium and the oxygen bonded possibility of having reduced, thereby make more vanadium participate in alloying, and then improved the rate of recovery of vanadium, and the fluctuating range of the rate of recovery of vanadium is less.Vanadium recovery can be increased to 96% to 98%.
Description of drawings
Fig. 1 is the synoptic diagram of cored-wire.
Be labeled as among the figure: 1-crust, 2-sandwich layer.
Embodiment
The present invention is further described below in conjunction with embodiment.
As shown in Figure 1, the cored-wire that is used for the molten steel alloying of the present invention comprises sandwich layer 2, and described sandwich layer 2 contains alloy of vanadium nitride, and described sandwich layer 2 also contains silicocalcium.In cored-wire feeding molten steel process, because the avidity of silicon, calcium and oxygen is far above the avidity of vanadium and oxygen, so silicon, calcium at first with molten steel in free oxygen combination, thereby the free oxygen level of molten steel is significantly reduced, this is with regard to corresponding vanadium and the oxygen bonded possibility of having reduced, thereby make more vanadium participate in alloying, and then improved the rate of recovery of vanadium, and the fluctuating range of the rate of recovery of vanadium is less.Vanadium recovery can be increased to 96% to 98%.Above-mentioned silicocalcium can be the silicocalcium of the trades mark such as Ca28Si60 or Ca30Si35.
Fuse into fast in the molten steel for the ease of alloy of vanadium nitride, also quick and oxygen reaction for the ease of silicocalcium, the alloy of vanadium nitride of described sandwich layer and silicocalcium all are powder, the particle diameter of described powder is smaller or equal to 5mm.
For when improving vanadium recovery, also be convenient to other alloying element is added molten steel, also contain the iron alloy additive in the sandwich layer 2 of above-mentioned cored-wire, described alloy of vanadium nitride, the content of silicocalcium and iron alloy additive is by weight percentage: alloy of vanadium nitride: 50%～90%, silicocalcium: 10%～40%, the iron alloy additive: 0～40%, wherein, described iron alloy additive is at least a in the following alloy: ferro-titanium, ferrocolumbium, ferro-vanadium.The weight percent of above-mentioned iron alloy additive is: 0～40%, that is to say that the content of iron alloy additive can be zero.Cored-wire adopts the said ratio mode, on the one hand can be by the adding of silicocalcium, improve the rate of recovery of vanadium, the feeding efficient that can guarantee alloy of vanadium nitride on the other hand is higher, if silicocalcium too high levels, then the content of alloy of vanadium nitride is corresponding lower, can make the feeding efficient of alloy of vanadium nitride lower, so the content of alloy of vanadium nitride and silicocalcium should be controlled in the reasonable proportioning scope.In addition, when not containing the iron alloy additive in the cored-wire, just only contain alloy of vanadium nitride and silicocalcium, then alloy of vanadium nitride and silicocalcium can be alloy of vanadium nitride by weight percentage: 60%～90%, and silicocalcium: 10%～40%.
For the ease of above-mentioned iron alloy additive is fused in the molten steel, also be convenient to the making of the sandwich layer 2 of cored-wire, the iron alloy additive of described sandwich layer 2 is a powder, the particle diameter of described powder is smaller or equal to 5mm.
The method that is used for the molten steel alloying of the present invention may further comprise the steps:
A, make cored-wire, comprise the sandwich layer 2 of making cored-wire and sandwich layer 2 is wrapped to form cored-wire by crust 1, wherein, the sandwich layer 2 of described cored-wire contains alloy of vanadium nitride and silicocalcium;
B, cored-wire that steps A is made are by the molten steel in the Yarn feeding device feeding ladle.
Adopt aforesaid method,, reduce the content of free oxygen in the molten steel by the reaction of silicon, calcium and oxygen, can improve the rate of recovery of vanadium, in addition, in the cored-wire course of processing, alloy of vanadium nitride can be uniformly mixed to form sandwich layer with silicocalcium, forms cored-wire by sheetmetal or iron sheet parcel sandwich layer then; Can also for: silicocalcium as skin, alloy of vanadium nitride adopts the form of silicocalcium parcel alloy of vanadium nitride to make sandwich layer as internal layer, the crust of being made by sheetmetal or iron sheet in silicocalcium layer external parcel forms cored-wire then.
In the aforesaid method, fuse into fast in the molten steel for the ease of alloy of vanadium nitride, also quick and oxygen reaction for the ease of silicocalcium, the alloy of vanadium nitride of the sandwich layer 2 in the described steps A and silicocalcium all are powder, the particle diameter of described powder is smaller or equal to 5mm.
In the aforesaid method, for when improving vanadium recovery, also be convenient to other alloying element is added molten steel, sandwich layer 2 in the described steps A also contains the iron alloy additive, described alloy of vanadium nitride, the content of silicocalcium and iron alloy additive is by weight percentage: alloy of vanadium nitride: 50%～90%, silicocalcium: 10%～40%, iron alloy additive: 0～40%, wherein, described iron alloy additive is at least a in the following alloy: ferro-titanium, ferrocolumbium, ferro-vanadium.On the basis of the above, for the ease of above-mentioned iron alloy additive is fused in the molten steel, also be convenient to the making of the sandwich layer of cored-wire, the iron alloy additive of described sandwich layer is a powder, and the particle diameter of described powder is smaller or equal to 5mm.In addition, but above-mentioned alloy of vanadium nitride, iron alloy additive, silicocalcium uniform mixing are made the sandwich layer of cored-wire, by sheetmetal or iron sheet parcel sandwich layer, form cored-wire then; Also can be alloy of vanadium nitride and iron alloy additive uniform mixing and make the internal layer of sandwich layer, silicocalcium is as the skin of sandwich layer, and the crust of being made by sheetmetal or iron sheet in silicocalcium layer external parcel forms cored-wire then.
In order to improve the flowability of slag on the basis of the above, help cored-wire and feed fast in the molten steel, reduce the loss of cored-wire at the slag layer, among the described step B, on one side with cored-wire by the molten steel in the Yarn feeding device feeding ladle, on one side ladle is rocked.By ladle is rocked, can improve the flowability of slag, be convenient to feed cored-wire, help preventing that cored-wire from card line and broken string taking place, also can improve the rate of recovery of vanadium and nitrogen.
In addition, in order to be convenient to that further cored-wire is fed in the molten steel, among the described step B, on one side with cored-wire by the molten steel in the Yarn feeding device feeding ladle, on one side to cored-wire and the molten steel contact area rare gas element of jetting.By to cored-wire and molten steel contact area winding-up rare gas element, can improve the flowability of the slag in this zone on the one hand, can prevent that on the other hand the slag beyond this zone from compiling towards this zone flows, especially ladle is being rocked in the process, other regional slag might by the rare gas element of jetting, can effectively guarantee the quick feeding of cored-wire towards flowing near the cored-wire near cored-wire, and can prevent that cored-wire from card line or broken string taking place, and also can improve the rate of recovery of vanadium and nitrogen.
Embodiment one:
The cored-wire that is used for the molten steel alloying, comprise sandwich layer, described sandwich layer is made up of alloy of vanadium nitride and silicocalcium, the weight proportion of above-mentioned alloy of vanadium nitride and silicocalcium is: alloy of vanadium nitride: 90%, and silicocalcium: 10%, alloy of vanadium nitride and silicocalcium all are powder, particle diameter is below the 2mm, the sandwich layer external packets is wrapped with the crust that cold rolled strip is made, and the external diameter of whole cored-wire is 12mm, and vanadium recovery is 96%.
Embodiment two:
The cored-wire that is used for the molten steel alloying, comprise sandwich layer, described sandwich layer is made up of alloy of vanadium nitride and silicocalcium, the weight proportion of above-mentioned alloy of vanadium nitride and silicocalcium is: alloy of vanadium nitride: 65%, and silicocalcium: 35%, alloy of vanadium nitride and silicocalcium all are powder, particle diameter is below the 3mm, the sandwich layer external packets is wrapped with the crust that cold rolled strip is made, and the external diameter of whole cored-wire is 12mm, and vanadium recovery is 97.8%.
Embodiment three:
The cored-wire that is used for the molten steel alloying, comprise sandwich layer, described sandwich layer contains alloy of vanadium nitride, silicocalcium and ferro-vanadium, and the weight proportion of above-mentioned alloy of vanadium nitride and silicocalcium and ferro-vanadium is: alloy of vanadium nitride: 80%, silicocalcium: 10%, ferro-vanadium: 10%.Alloy of vanadium nitride, silicocalcium and ferro-vanadium all are powder, and particle diameter is below the 3mm, and the sandwich layer external packets is wrapped with the crust that cold rolled strip is made, and the external diameter of whole cored-wire is 13mm, and vanadium recovery is 96.5%.
Embodiment four:
The cored-wire that is used for the molten steel alloying, comprise sandwich layer, described sandwich layer contains alloy of vanadium nitride, silicocalcium and ferro-titanium, and the weight proportion of above-mentioned alloy of vanadium nitride and silicocalcium and ferro-titanium is: alloy of vanadium nitride: 80%, silicocalcium: 10%, ferro-titanium: 10%.Alloy of vanadium nitride, silicocalcium and ferro-titanium all are powder, and particle diameter is below the 3mm, and the sandwich layer external packets is wrapped with the crust that cold rolled strip is made, and the external diameter of whole cored-wire is 13mm, and vanadium recovery is 96.5%.
Embodiment five:
The cored-wire that is used for the molten steel alloying, comprise sandwich layer, described sandwich layer contains alloy of vanadium nitride, silicocalcium and ferrocolumbium, and the weight proportion of above-mentioned alloy of vanadium nitride and silicocalcium and ferrocolumbium is: alloy of vanadium nitride: 80%, silicocalcium: 10%, ferrocolumbium: 10%.Alloy of vanadium nitride, silicocalcium and ferrocolumbium all are powder, and particle diameter is below the 3mm, and the sandwich layer external packets is wrapped with the crust that cold rolled strip is made, and the external diameter of whole cored-wire is 13mm, and vanadium recovery is 96.5%.
Embodiment six:
The cored-wire that is used for the molten steel alloying, comprise sandwich layer, described sandwich layer contains alloy of vanadium nitride, silicocalcium, ferrocolumbium and ferro-titanium, the weight proportion of above-mentioned alloy of vanadium nitride, silicocalcium, ferrocolumbium and ferro-titanium is: alloy of vanadium nitride: 70%, silicocalcium: 15%, ferrocolumbium: 5%, ferro-titanium: 10%.Alloy of vanadium nitride, silicocalcium, ferrocolumbium and ferro-titanium all are powder, and particle diameter is below the 3mm, and the sandwich layer external packets is wrapped with the crust that cold rolled strip is made, and the external diameter of whole cored-wire is 13mm, and vanadium recovery is 96.9%.
Embodiment seven:
The cored-wire that is used for the molten steel alloying, comprise sandwich layer, described sandwich layer contains alloy of vanadium nitride, silicocalcium, ferrocolumbium and ferro-vanadium, the weight proportion of above-mentioned alloy of vanadium nitride, silicocalcium, ferrocolumbium and ferro-vanadium is: alloy of vanadium nitride: 60%, silicocalcium: 30%, ferrocolumbium: 5%, ferro-vanadium: 5%.Alloy of vanadium nitride, silicocalcium, ferrocolumbium and ferro-vanadium all are powder, and particle diameter is below the 3mm, and the sandwich layer external packets is wrapped with the crust that cold rolled strip is made, and the external diameter of whole cored-wire is 13mm, and vanadium recovery is 97.5%.
Embodiment eight:
The cored-wire that is used for the molten steel alloying, comprise sandwich layer, described sandwich layer contains alloy of vanadium nitride, silicocalcium, ferro-titanium and ferro-vanadium, the weight proportion of above-mentioned alloy of vanadium nitride, silicocalcium, ferro-titanium and ferro-vanadium is: alloy of vanadium nitride: 65%, silicocalcium: 10%, ferro-titanium: 5%, ferro-vanadium: 20%.Alloy of vanadium nitride, silicocalcium, ferro-titanium and ferro-vanadium all are powder, and particle diameter is below the 3mm, and the sandwich layer external packets is wrapped with the crust that cold rolled strip is made, and the external diameter of whole cored-wire is 13mm, and vanadium recovery is 96.7%.
Embodiment nine:
The cored-wire that is used for the molten steel alloying, comprise sandwich layer, described sandwich layer contains alloy of vanadium nitride, silicocalcium, ferrocolumbium, ferro-titanium and ferro-vanadium, the weight proportion of above-mentioned alloy of vanadium nitride, silicocalcium, ferrocolumbium, ferro-titanium and ferro-vanadium is: alloy of vanadium nitride: 55%, silicocalcium: 15%, ferrocolumbium: 5%, ferro-titanium: 5%, ferro-vanadium: 20%.Alloy of vanadium nitride, silicocalcium, ferrocolumbium, ferro-titanium and ferro-vanadium all are powder, and particle diameter is below the 3mm, and the sandwich layer external packets is wrapped with the crust that cold rolled strip is made, and the external diameter of whole cored-wire is 13mm, and vanadium recovery is 97.2%.
Claims (10)
1. the cored-wire that is used for the molten steel alloying comprises sandwich layer (2), and described sandwich layer (2) contains alloy of vanadium nitride, it is characterized in that: described sandwich layer (2) also contains silicocalcium.
2. the cored-wire that is used for the molten steel alloying as claimed in claim 1 is characterized in that: the alloy of vanadium nitride of described sandwich layer (2) and silicocalcium all are powder, and the particle diameter of described powder is smaller or equal to 5mm.
3. the cored-wire that is used for the molten steel alloying as claimed in claim 1 or 2, it is characterized in that: described sandwich layer (2) also contains the iron alloy additive, described alloy of vanadium nitride, the content of silicocalcium and iron alloy additive is by weight percentage: alloy of vanadium nitride: 50%～90%, and silicocalcium: 10%～40%, iron alloy additive: 0～40%, wherein, described iron alloy additive is at least a in the following alloy: ferro-titanium, ferrocolumbium, ferro-vanadium.
4. the cored-wire that is used for the molten steel alloying as claimed in claim 3 is characterized in that: the iron alloy additive of described sandwich layer (2) is a powder, and the particle diameter of described powder is smaller or equal to 5mm.
5. the method that is used for the molten steel alloying is characterized in that may further comprise the steps:
A, make cored-wire, comprise the sandwich layer (2) of making cored-wire and sandwich layer (2) is wrapped to form cored-wire by crust (1), wherein, the sandwich layer of described cored-wire (2) contains alloy of vanadium nitride and silicocalcium;
B, cored-wire that steps A is made are by the molten steel in the Yarn feeding device feeding ladle.
6. the method that is used for the molten steel alloying as claimed in claim 5 is characterized in that: the alloy of vanadium nitride of the sandwich layer in the described steps A (2) and silicocalcium all are powder, and the particle diameter of described powder is smaller or equal to 5mm.
7. the method that is used for the molten steel alloying as claimed in claim 5, it is characterized in that: the sandwich layer in the described steps A (2) also contains the iron alloy additive, described alloy of vanadium nitride, the content of silicocalcium and iron alloy additive is by weight percentage: alloy of vanadium nitride: 50%～90%, and silicocalcium: 10%～40%, iron alloy additive: 0～40%, wherein, described iron alloy additive is at least a in the following alloy: ferro-titanium, ferrocolumbium, ferro-vanadium.
8. the method that is used for the molten steel alloying as claimed in claim 5 is characterized in that: the iron alloy additive of described sandwich layer (2) is a powder, and the particle diameter of described powder is smaller or equal to 5mm.
9. the method that is used for the molten steel alloying as claimed in claim 5 is characterized in that: among the described step B, on one side with cored-wire by the molten steel in the Yarn feeding device feeding ladle, on one side ladle is rocked.
10. as any described method that is used for the molten steel alloying in the claim 5 to 9, it is characterized in that: among the described step B, on one side with cored-wire by the molten steel in the Yarn feeding device feeding ladle, on one side to cored-wire and the molten steel contact area rare gas element of jetting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101209932A CN102206783B (en) | 2011-05-11 | 2011-05-11 | Molten steel alloying cored wire and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101209932A CN102206783B (en) | 2011-05-11 | 2011-05-11 | Molten steel alloying cored wire and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102206783A true CN102206783A (en) | 2011-10-05 |
| CN102206783B CN102206783B (en) | 2012-11-21 |
Family
ID=44695837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101209932A Active CN102206783B (en) | 2011-05-11 | 2011-05-11 | Molten steel alloying cored wire and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102206783B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828000A (en) * | 2012-10-08 | 2012-12-19 | 侯巍 | Metallurgical V-N microalloying and compound deoxidation cored wire |
| CN104046728A (en) * | 2013-12-06 | 2014-09-17 | 攀钢集团攀枝花钢铁研究院有限公司 | Cored wire, its application, vanadium and nitrogen alloyed molten steel, preparation method of vanadium and nitrogen alloyed molten steel, and vanadium and nitrogen micro-alloyed steel |
| CN104046722A (en) * | 2013-12-06 | 2014-09-17 | 攀钢集团攀枝花钢铁研究院有限公司 | Cored wire, its application, vanadium and nitrogen alloyed molten steel, preparation method of vanadium and nitrogen alloyed molten steel, and vanadium and nitrogen micro-alloyed steel |
| CN104046724A (en) * | 2013-12-06 | 2014-09-17 | 攀钢集团攀枝花钢铁研究院有限公司 | Cored wire, its application, vanadium and nitrogen alloyed molten steel, preparation method of vanadium and nitrogen alloyed molten steel, and vanadium and nitrogen micro-alloyed steel |
| CN104060038A (en) * | 2013-12-06 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Core spun yarn and application thereof, vanadium nitrogen alloyed molten steel and preparation method thereof, and vanadium nitrogen microalloyed steel |
| CN104060042A (en) * | 2013-12-06 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Core spun yarn and application thereof, vanadium nitrogen alloyed molten steel and preparation method thereof, and vanadium nitrogen microalloyed steel |
| CN104060035A (en) * | 2013-12-06 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Core spun yarn and application thereof, vanadium nitrogen alloyed molten steel and preparation method thereof, and vanadium nitrogen microalloyed steel |
| CN104060030A (en) * | 2013-12-06 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Core spun yarn and application thereof, vanadium nitrogen alloyed molten steel and preparation method thereof, and vanadium nitrogen microalloyed steel |
| CN104060043A (en) * | 2013-12-06 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Core spun yarn and application thereof, vanadium nitrogen alloyed molten steel and preparation method thereof, and vanadium-nitrogen microalloyed steel |
| CN108456817A (en) * | 2018-04-24 | 2018-08-28 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of nitro-alloy and preparation method thereof |
| CN112080609A (en) * | 2020-09-29 | 2020-12-15 | 沈阳钢中宝科技有限公司 | Composite nitrogen core-spun yarn for steelmaking and preparation and use methods thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818086A (en) * | 2006-03-09 | 2006-08-16 | 攀钢集团攀枝花钢铁研究院 | Core-spun yarn for realizing molten steel vanadium and nitrogen alloying |
| CN101713014A (en) * | 2009-11-03 | 2010-05-26 | 广东延能新材料科技有限公司 | Steel additive agent vanadium nitride alloy powder core-spun wire |
-
2011
- 2011-05-11 CN CN2011101209932A patent/CN102206783B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818086A (en) * | 2006-03-09 | 2006-08-16 | 攀钢集团攀枝花钢铁研究院 | Core-spun yarn for realizing molten steel vanadium and nitrogen alloying |
| CN101713014A (en) * | 2009-11-03 | 2010-05-26 | 广东延能新材料科技有限公司 | Steel additive agent vanadium nitride alloy powder core-spun wire |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828000A (en) * | 2012-10-08 | 2012-12-19 | 侯巍 | Metallurgical V-N microalloying and compound deoxidation cored wire |
| CN104046728A (en) * | 2013-12-06 | 2014-09-17 | 攀钢集团攀枝花钢铁研究院有限公司 | Cored wire, its application, vanadium and nitrogen alloyed molten steel, preparation method of vanadium and nitrogen alloyed molten steel, and vanadium and nitrogen micro-alloyed steel |
| CN104046722A (en) * | 2013-12-06 | 2014-09-17 | 攀钢集团攀枝花钢铁研究院有限公司 | Cored wire, its application, vanadium and nitrogen alloyed molten steel, preparation method of vanadium and nitrogen alloyed molten steel, and vanadium and nitrogen micro-alloyed steel |
| CN104046724A (en) * | 2013-12-06 | 2014-09-17 | 攀钢集团攀枝花钢铁研究院有限公司 | Cored wire, its application, vanadium and nitrogen alloyed molten steel, preparation method of vanadium and nitrogen alloyed molten steel, and vanadium and nitrogen micro-alloyed steel |
| CN104060038A (en) * | 2013-12-06 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Core spun yarn and application thereof, vanadium nitrogen alloyed molten steel and preparation method thereof, and vanadium nitrogen microalloyed steel |
| CN104060042A (en) * | 2013-12-06 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Core spun yarn and application thereof, vanadium nitrogen alloyed molten steel and preparation method thereof, and vanadium nitrogen microalloyed steel |
| CN104060035A (en) * | 2013-12-06 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Core spun yarn and application thereof, vanadium nitrogen alloyed molten steel and preparation method thereof, and vanadium nitrogen microalloyed steel |
| CN104060030A (en) * | 2013-12-06 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Core spun yarn and application thereof, vanadium nitrogen alloyed molten steel and preparation method thereof, and vanadium nitrogen microalloyed steel |
| CN104060043A (en) * | 2013-12-06 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Core spun yarn and application thereof, vanadium nitrogen alloyed molten steel and preparation method thereof, and vanadium-nitrogen microalloyed steel |
| CN108456817A (en) * | 2018-04-24 | 2018-08-28 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of nitro-alloy and preparation method thereof |
| CN112080609A (en) * | 2020-09-29 | 2020-12-15 | 沈阳钢中宝科技有限公司 | Composite nitrogen core-spun yarn for steelmaking and preparation and use methods thereof |
| CN112080609B (en) * | 2020-09-29 | 2024-05-17 | 沈阳钢中宝科技有限公司 | Composite nitrogen cored wire for steelmaking and preparation and use methods thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102206783B (en) | 2012-11-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102206783B (en) | Molten steel alloying cored wire and method | |
| CN102212737B (en) | Core-spun thread and method for implementing molten steel vanadium-nitrogen alloying | |
| CN102206731B (en) | Vanadium and nitrogen alloying cored wire and method for molten steel | |
| CN102181603B (en) | Vanadium nitride core-spun yarn and method for realizing molten steel vanadium and nitrogen alloying | |
| CN101693978B (en) | Steel used for large-size hot-rolled ribbed rebar of 500MPa and smelting method thereof | |
| CN102994871B (en) | Method for smelting medium/high-carbon hard-wired steel by vanadium-titanium containing molten iron | |
| CN104357614A (en) | Ferro-silicon nitride alloy core-spun wire and production method thereof | |
| CN202063948U (en) | Core-wrapped wire for alloying of molten steel | |
| CN102689106B (en) | Vertical electro-gas welding metal-cored flux-cored welding wire for petroleum storage tank | |
| CN102321778A (en) | Method of deoxidation of medium carbon aluminum-containing steel in converter | |
| CN102634640A (en) | Nickel-magnesium alloy cored wire for final deoxidation of low-carbon molten steel | |
| CN202063949U (en) | Vanadium-nitrogen alloy cored wire | |
| CN202063982U (en) | Core-spun yarn | |
| CN104046722A (en) | Cored wire, its application, vanadium and nitrogen alloyed molten steel, preparation method of vanadium and nitrogen alloyed molten steel, and vanadium and nitrogen micro-alloyed steel | |
| CN202063981U (en) | Core-spun yarn made of vanadium nitride | |
| CN101693976B (en) | Vanadium-nitrogen microalloying method for converting | |
| CN105296706A (en) | Titanium composite cored wire, application thereof and method for conducting molten steel titanium alloying | |
| CN104046737A (en) | Cored wire, its application, vanadium and nitrogen alloyed molten steel, preparation method of vanadium and nitrogen alloyed molten steel, and vanadium and nitrogen micro-alloyed steel | |
| CN104046724A (en) | Cored wire, its application, vanadium and nitrogen alloyed molten steel, preparation method of vanadium and nitrogen alloyed molten steel, and vanadium and nitrogen micro-alloyed steel | |
| CN104060036A (en) | Core spun yarn and application thereof, vanadium nitrogen alloyed molten steel and preparation method thereof, and vanadium nitrogen microalloyed steel | |
| CN104060031A (en) | Core spun yarn and application thereof, vanadium nitrogen alloyed molten steel and preparation method thereof, and vanadium nitrogen microalloyed steel | |
| CN104046728A (en) | Cored wire, its application, vanadium and nitrogen alloyed molten steel, preparation method of vanadium and nitrogen alloyed molten steel, and vanadium and nitrogen micro-alloyed steel | |
| CN104073596B (en) | A kind of cored-wire and the titanium alloyed method of molten steel | |
| CN104046888A (en) | Cored wire, its application, vanadium and nitrogen alloyed molten steel, preparation method of vanadium and nitrogen alloyed molten steel, and vanadium and nitrogen micro-alloyed steel | |
| CN104046725A (en) | Cored wire, its application, vanadium and nitrogen alloyed molten steel, preparation method of vanadium and nitrogen alloyed molten steel, and vanadium and nitrogen micro-alloyed steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |