CN201809392U - Pure calcium core-spun yarn for molten steel deoxidization - Google Patents
Pure calcium core-spun yarn for molten steel deoxidization Download PDFInfo
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- CN201809392U CN201809392U CN2010205368089U CN201020536808U CN201809392U CN 201809392 U CN201809392 U CN 201809392U CN 2010205368089 U CN2010205368089 U CN 2010205368089U CN 201020536808 U CN201020536808 U CN 201020536808U CN 201809392 U CN201809392 U CN 201809392U
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- calcium
- core
- spun yarn
- molten steel
- deoxidization
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Abstract
The utility model discloses a pure calcium core-spun yarn for molten steel deoxidization, which consists of core materials and a wrapper, wherein the wrapper adopts a 08 aluminum steel belt. The utility model is characterized in that the core materials are passivated metallic calcium powder, the metallic calcium powder accounts for more than 97 percent of the weight of the core materials, the yarn diameter of the pure calcium core-spun yarn is 9.0+/-0.5mm, and the thickness of the wrapper 08 aluminum steel belt is 0.45mm. The pure calcium core-spun yarn adopts the passivated metallic calcium powder as the core-spun yarn core materials, and has good deoxidization performance because the calcium has good compatibility with the oxygen. When the deep deoxidization is carried out on the molten steel in a pure calcium core-spun yarn mode, because the calcium is positioned at each level in the molten steel and is easy to be diffused in the molten steel, and no other harmful elements pollute the molten steel, the deoxidization efficiency is greatly improved through being compared with the existing calcium iron yarn efficiency. Meanwhile, the calcium consumption of each ton of steel can be further reduced, the deoxidization time is shortened, the calcium saturation is greatly improved, and the calcium treatment cost is reduced.
Description
Technical field
The utility model relates to the refining steel technical field, relates in particular to refining steel degree of depth deoxidation cored-wire.
Background technology
Calcium series cored-wire is widely used in ladle deoxidation and handles, with the electromagnetism orientation characteristic of the intensity, toughness and the high-performance silicon steel that improve special steel etc.At present, each big steel mill is all based on silicon-calcium wire, calcium iron wire, Ca 〉=30%, Fe 〉=70%, core grain weight 〉=230 gram/rice, now using ferro-calcium core-spun yarn is the mixture of calcium and iron, so be easy to generate ferric oxide, the most important thing is that iron powder contains multiple harmful element, as: S, Si, P, C etc.So just refining steel is produced secondary pollution, the quality of special steel is brought influence.
Summary of the invention
Problem to be solved in the utility model provides a kind of pure calcium core-spun yarn, improves the solubleness in the molten steel, and controls reaction speed prevents the molten steel splash phenomenon of overrunning and causing because of reaction,
The pure calcium core-spun yarn of deoxidation of molten steel of the present utility model, it is made of core material and exoperidium, and exoperidium adopts 08 aluminum steel band, it is characterized in that: core material is the passive metal calcium powder, and metallic calcium powder accounts for more than 97% of core material weight.
The utility model adopts the passive metal calcium powder as the cored-wire core material, because calcium has fabulous affinity to oxygen, therefore has good deoxy performance.When with pure calcium core-spun yarn form during to the deoxidation of the molten steel degree of depth, because on calcium each aspect in molten steel, and it is easy to spread in molten steel, does not have other any harmful element to pollute molten steel again, so the existing calcium iron wire of deoxidation efficiency ratio efficient increases substantially.Can further reduce simultaneously the consumption of the calcium of steel per ton, deaeration time shortens, and improves the saturation ratio (being the recovery rate of calcium) of calcium greatly, reduces the calcium processing cost.Simultaneously, improved the electromagnetism orientation characteristic of steel-sheet intensity, toughness and high-performance silicon steel.
Description of drawings
Fig. 1 is the diagrammatic cross-section of the pure calcium core-spun yarn of the utility model.
Embodiment
The pure calcium core-spun yarn of the utility model is such processing and manufacturing: on the covering machine passive metal calcium powder core material evenly is being added on the 08 aluminum steel band, with aluminum steel band parcel and with the core material compacting, final winding becomes the wire finished product.
Embodiment 1
This cored-wire is made up of exoperidium 1 and core material 2.Crust 1 is 08 aluminium strip steel, and core material 2 is made of Powdered reductor, and it is made up of Ca.The specification of cored-wire is as follows: (content wherein is weight percentage)
1, cored-wire diameter: 9.0 ± 0.5mm
2, composition: Ca content 〉=97%
3, steel band is thick: 0.45mm high quality 08 aluminum steel band
4, steel band is heavy: 140 gram/m
5, grain weight: 50 gram/m
6, net weight: 1.0T/ volume
7, length: 5200-5500 rice/volume
8, packing: vertical, horizontal, in take out, steel band tightens+the waterproof plastic film+outward with braid pack+iron shrouds (japanning)
9, coil of wire size: internal diameter 590--600mm external diameter 1150--1250mm height 1300mm, above product also can be by customer requirements production.
10, feeding mode: handle the feeding in latter stage at the LF stove
11, steel grade: DC01, DC03
12, feed quantity: 5000 (2.0-3.0) m/t, look molten steel and increase the calcium situation and take the circumstances into consideration to adjust.
13, the recovery rate of Ca is more stable after the line feeding, and average yield is 15%.
14, pouring molten steel is normal after the line feeding, and slab quality is good, shows that this pure calcium line can promote inclusion modification, purify hot metal and improve the pouring molten steel performance, and water-coating port dross phenomenon in can eliminating.
15, molten steel [si] does not obviously increase after the line feeding, can satisfy the requirement of molten steel low [s], low [si].
16, bright and clean, the rounding of this cored-wire outward appearance, in quick line feeding process, cabling is steady, card line and broken string phenomenon occur, can satisfy production requirement.
17, this cored-wire at the scene long-term storage do not influence result of use.
Test shows, steel per ton add 200 gram calcium just can make steel castability be improved significantly, thereby reduce the blocked danger of continous casting sprue, reduced cost to enterprise, increased benefit.
Claims (3)
1. pure calcium core-spun yarn of deoxidation of molten steel, it is made of core material (2) and exoperidium (1), and exoperidium (1) adopts 08 aluminum steel band, and it is characterized in that: core material (2) is the passive metal calcium powder, and metallic calcium powder accounts for more than 97% of core material weight.
2. according to the described pure calcium core-spun yarn of claim 1, it is characterized in that: the line of pure calcium core-spun yarn directly is 9.0 ± 0.5mm.
3. according to the described pure calcium core-spun yarn of claim 1, it is characterized in that: the thickness of exoperidium (1) 08 aluminum steel band is 0.45mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205368089U CN201809392U (en) | 2010-09-17 | 2010-09-17 | Pure calcium core-spun yarn for molten steel deoxidization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205368089U CN201809392U (en) | 2010-09-17 | 2010-09-17 | Pure calcium core-spun yarn for molten steel deoxidization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201809392U true CN201809392U (en) | 2011-04-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205368089U Expired - Fee Related CN201809392U (en) | 2010-09-17 | 2010-09-17 | Pure calcium core-spun yarn for molten steel deoxidization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201809392U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206732A (en) * | 2011-05-21 | 2011-10-05 | 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 |
| CN102382939A (en) * | 2011-10-27 | 2012-03-21 | 内蒙古包钢钢联股份有限公司 | Method for feeding high-calcium wire at steel plate cold-rolled common (SPCC) steel refining station |
| CN102505064A (en) * | 2011-11-28 | 2012-06-20 | 秦皇岛双轮环保科技有限公司 | Method for producing calcium paste cored wires |
| CN107245548A (en) * | 2017-05-31 | 2017-10-13 | 天津炜润达新材料科技有限公司 | A kind of deoxidation in steel making and Calcium treatment calcium core aluminium and its production method |
-
2010
- 2010-09-17 CN CN2010205368089U patent/CN201809392U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206732A (en) * | 2011-05-21 | 2011-10-05 | 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 |
| CN102382939A (en) * | 2011-10-27 | 2012-03-21 | 内蒙古包钢钢联股份有限公司 | Method for feeding high-calcium wire at steel plate cold-rolled common (SPCC) steel refining station |
| CN102505064A (en) * | 2011-11-28 | 2012-06-20 | 秦皇岛双轮环保科技有限公司 | Method for producing calcium paste cored wires |
| CN107245548A (en) * | 2017-05-31 | 2017-10-13 | 天津炜润达新材料科技有限公司 | A kind of deoxidation in steel making and Calcium treatment calcium core aluminium and its production method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20160917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |