CN103146881B - Core-spun yarn for treating compound calcium - Google Patents
Core-spun yarn for treating compound calcium Download PDFInfo
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- CN103146881B CN103146881B CN201310066280.1A CN201310066280A CN103146881B CN 103146881 B CN103146881 B CN 103146881B CN 201310066280 A CN201310066280 A CN 201310066280A CN 103146881 B CN103146881 B CN 103146881B
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- calcium
- core
- spun yarn
- aluminium foil
- cored
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- Treatment Of Steel In Its Molten State (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a core-spun yarn for treating compound calcium added in ferrous metallurgy. The core-spun yarn is a subsection layering quantitative compound calcium treating core-spun yarn, and comprises an aluminium foil tube, a sheet iron tube, a fastening ring, a calcium treating agent layer and a limestone flour layer. The core-spun yarn provided by the invention can reduce the calcium treatment intensity through successively and continuously adding a calcium treating agent, an aluminiferous deoxidizing agent and limestone flour in a subsection, layering and quantitative manner, the calcium treatment process and other deoxidation cleaning agents carry out compound treatment, the calcium yield is improved; and meanwhile, the integral dosage of the calcium treating agent on per unit length is reduced, the line feeding speed is improved, the core-spun yarn is beneficial to penetrating into the bottom of the molten steel, and the calcium treatment effect is improved.
Description
Technical field
The present invention relates to the Calcium treatment field of ferrous metallurgy, be specifically related to a kind of staged and layered component type compound calcium processing core cabling wire.
Background technology
In ferrous metallurgy production high-quality steel grade process, the cored-wire adding composite calcium process is needed to carry out Calcium treatment.Currently used cored-wire comprises silico-calcium cored-wire, ferro-calcium core-spun yarn and pure calcium core-spun yarn, in homogeneous cored-wire.This cored-wire, in actual application, because in unit length, calcium contents is more, so react acutely with molten steel, often occurs that molten steel seethes phenomenon, adds in molten steel and can not all effectively enter in molten steel.
Composite core-spun yarn conventional at present, directly carries out being overmolding to cored-wire after first being mixed by the scavenging agent of different ratios, or the center of cored-wire is set to active high deoxidation purificant, adds deoxidation purificant around.But these cored-wires ratio of deoxidation purificant in random length is the same, the ratio of various deoxidation purificant can not adjust flexibly by the demand of different steel grade, especially for the cored-wire of calcic metal treatment, continuous vigorous reaction during feeding, molten steel deep diffusion deoxidation speed is less than calcium metal evaporation speed of response, cause reaction violent, reduce recovery rate.
Application number be 201210305426.9 the Chinese patent application revenge thickness that only increases cored-wire reduce merely the speed of cored-wire fusing, do not relate to the composition adjustment in cored-wire and innovation; And the patent application that application number is 201210320095.6 selects the effect of calcium silk, sustained release dosage mainly to improve the recovery rate of calcium alloy, the product of calcium silk and sustained release dosage deoxygenation is difficult to combine the new slag system of formation and removes from molten steel, and the selection of calcium agent material can not select the conventional finished products such as passive metal calcium, silico-calcium, calcium iron, calcareous raw material is restricted.The common ground of above-mentioned two patent applications focuses on Calcium treatment itself to improve recovery rate, still haves much room for improvement in processing speed and other.
Summary of the invention
The object of the invention is to the defect overcoming existing cored-wire, a kind of energy segmentation, layering, component are provided, feed in due order, to control Calcium treatment speed of response, together can carry out Combined Processing with other deoxidation purificants simultaneously, thus improve the staged and layered component type compound calcium processing core cabling wire of Molten Steel Cleanliness.
In order to solve this technical problem, the invention provides a kind of staged and layered component type compound calcium processing core cabling wire, comprise aluminium foil cylinder, sheetmetal cylinder, wherein aluminium foil jacket casing is in sheetmetal cylinder, aluminium foil cylinder is divided into some sections of isometric or Length discrepancy, adopts one to tighten ring and separate between adjacent segment; Calcium treatment oxidant layer is comprised from front to back, containing aluminium deoxidation oxidant layer, Wingdale bisque in every section; Be established as starting point with refining slag system in Clean Steel production process, by wire-feeding technique, add quick deoxidation in refining and slag former is added the bottom of ladle early stage, increase deoxidation effect, accelerate the reaction of slag former and molten steel, shortening refining time.
Adopt aluminium foil cylinder, aluminium foil can participate in deoxygenation in molten steel; Sheetmetal cylinder is provided with, to increase its intensity in the outside of aluminium foil cylinder.
Preferably, every meter described, aluminium foil cylinder is one section
Preferably, the interior diameter of described aluminium foil cylinder is 5-8mm.
Calcium treatment oxidant layer in every section, can to adjust as required containing the length of aluminium deoxidation oxidant layer, Wingdale bisque.
Preferably, the length of described Calcium treatment oxidant layer is 40-60cm.
Beneficial effect of the present invention is: compared with current used cored-wire, due to energy segmentation, layering, component, add Calcium treatment agent continuously successively, containing aluminium deoxidizer, limestone powder, so reduce Calcium treatment reaction severe degree, Calcium treatment process and other deoxidation purificants carry out Combined Processing, improve calcium recovery rate; Meanwhile, reduce Calcium treatment agent total amount in unit length, improve wire-feeding velocity, be beneficial to the bottom going deep into molten steel in ladle, the reaction contact area of corresponding increase lime slag making raw material and molten steel, with only ladle surface slag-metal reaction compared with speed of response greatly accelerate, shorten the Calcium treatment time.
Accompanying drawing explanation
Fig. 1 is that axis of no-feathering of the present invention is to cross-sectional schematic.
Accompanying drawing identifies:
1, aluminium foil cylinder; 2, sheetmetal cylinder; 3, ring is tightened; 4, Calcium treatment oxidant layer; 5, containing aluminium deoxidation oxidant layer; 6, Wingdale bisque.
Embodiment
Be below a preferred embodiment of the present invention, it is only used as explanation of the invention instead of restriction.
With reference to Fig. 1, the cored-wire of this segmentation composite calcium process, comprise aluminium foil cylinder 1, sheetmetal cylinder 2, aluminium foil cylinder 1 is enclosed within sheetmetal cylinder 2, aluminium foil cylinder 1 every meter be one section, adopt one to tighten ring 3 between adjacent segment to separate, in every section, load Calcium treatment oxidant layer 4 from front to back successively, containing aluminium deoxidation oxidant layer 5, Wingdale bisque 6, and compacting, tightens sealing in the end of aluminium foil cylinder 1, make it seal completely, avoid contacting with air.Adopt aluminium foil cylinder, aluminium foil can participate in deoxygenation in molten steel; Be provided with sheetmetal cylinder 3 in the outside of aluminium foil cylinder 1, to increase its intensity, be convenient in feeding molten steel.
As improvement of the present invention, the interior diameter of described aluminium foil cylinder 1 is 5-8mm; Calcium treatment oxidant layer 4 in every section, can to adjust as required containing the length of aluminium deoxidation oxidant layer 5, Wingdale bisque 6; The length of described Calcium treatment oxidant layer 4 is 40-60cm.Herein, Calcium treatment agent 4 and Calcium treatment agent this area all can being selected common containing aluminium deoxidation layer 5 and containing aluminium deoxidation layer, those skilled in the art can select as required flexibly.
Claims (4)
1. a cored-wire for composite calcium process, is characterized in that, described cored-wire comprises aluminium foil cylinder, sheetmetal cylinder, and described aluminium foil jacket casing is in described sheetmetal cylinder, and described aluminium foil cylinder is divided into some sections of isometric or Length discrepancy, adopts to tighten ring and separate between adjacent segment; Calcium treatment oxidant layer is comprised from front to back successively, containing aluminium deoxidation oxidant layer and Wingdale bisque in every section.
2. cored-wire according to claim 1, is characterized in that, every meter described, aluminium foil cylinder is one section.
3. cored-wire according to claim 1, is characterized in that, the interior diameter of described aluminium foil cylinder is 5-8mm.
4. cored-wire according to claim 1, is characterized in that, the length of described Calcium treatment oxidant layer is 40-60cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310066280.1A CN103146881B (en) | 2013-03-01 | 2013-03-01 | Core-spun yarn for treating compound calcium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310066280.1A CN103146881B (en) | 2013-03-01 | 2013-03-01 | Core-spun yarn for treating compound calcium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103146881A CN103146881A (en) | 2013-06-12 |
| CN103146881B true CN103146881B (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310066280.1A Expired - Fee Related CN103146881B (en) | 2013-03-01 | 2013-03-01 | Core-spun yarn for treating compound calcium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103146881B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113528749A (en) * | 2021-07-27 | 2021-10-22 | 常州东方特钢有限公司 | Sectional type silicon-calcium-manganese alloy core-spun yarn |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303950A (en) * | 2000-01-10 | 2001-07-18 | 彭其春 | Core-covered wire for deep-desulfurization for steel production |
| CN202482352U (en) * | 2012-01-06 | 2012-10-10 | 常州市新科冶金材料有限公司 | Aluminum-calcium cored wire |
| CN202626231U (en) * | 2012-06-05 | 2012-12-26 | 湖北亚克新材料有限公司 | Multi-ingredient segmented cored wire |
| CN202643740U (en) * | 2012-06-26 | 2013-01-02 | 巩义市众鑫钙业有限公司 | Seamless calcium aluminum iron wire |
-
2013
- 2013-03-01 CN CN201310066280.1A patent/CN103146881B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303950A (en) * | 2000-01-10 | 2001-07-18 | 彭其春 | Core-covered wire for deep-desulfurization for steel production |
| CN202482352U (en) * | 2012-01-06 | 2012-10-10 | 常州市新科冶金材料有限公司 | Aluminum-calcium cored wire |
| CN202626231U (en) * | 2012-06-05 | 2012-12-26 | 湖北亚克新材料有限公司 | Multi-ingredient segmented cored wire |
| CN202643740U (en) * | 2012-06-26 | 2013-01-02 | 巩义市众鑫钙业有限公司 | Seamless calcium aluminum iron wire |
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| Publication number | Publication date |
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| CN103146881A (en) | 2013-06-12 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20150318 Termination date: 20200301 |