CN103146881A - Core-spun yarn for treating compound calcium - Google Patents
Core-spun yarn for treating compound calcium Download PDFInfo
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- CN103146881A CN103146881A CN2013100662801A CN201310066280A CN103146881A CN 103146881 A CN103146881 A CN 103146881A CN 2013100662801 A CN2013100662801 A CN 2013100662801A CN 201310066280 A CN201310066280 A CN 201310066280A CN 103146881 A CN103146881 A CN 103146881A
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- calcium
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- spun yarn
- aluminium foil
- cored
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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 process field of ferrous metallurgy, be specifically related to the compound calcium processing core cabling wire of a kind of staged and layered component type.
Background technology
Produce in high-quality steel grade process at ferrous metallurgy, the cored-wire that need to add composite calcium to process carries out calcium to be processed.Currently used cored-wire comprises silico-calcium cored-wire, ferro-calcium core-spun yarn and pure calcium core-spun yarn, is a cored-wire of homogeneous.This cored-wire, in actual application, because calcium contents on unit length is more, thus violent with the molten steel reaction, molten steel often occurs and seethe phenomenon, add in molten steel and can not all effectively enter in molten steel.
Present composite core-spun yarn commonly used directly is overmolding to cored-wire for the scavenging agent with different ratios after first mixing, and perhaps the center with cored-wire is made as active high deoxidation purificant, adds deoxidation purificant on every side.But these cored-wires ratio of deoxidation purificant on random length is the same, the ratio of various deoxidation purificants can not be adjusted flexibly by the demand of different steel grades, 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 vaporization speed of response, cause reaction violent, reduce recovery rate.
Application number is the speed that revenge thickness that 201210305426.9 Chinese patent application only increases cored-wire reduces merely the cored-wire fusing, does not relate to composition adjustment and innovation in cored-wire; And application number to be 201210320095.6 patent application select the effect of calcium silk, sustained release dosage is mainly the recovery rate that improves calcium alloy, the product of calcium silk and sustained release dosage deoxygenation is difficult to remove from molten steel in conjunction with forming new slag system, and the selection of calcium agent material can not select the conventional finished products such as passive metal calcium, silico-calcium, calcium iron, and calcareous raw material is restricted.The common ground of above-mentioned two patent applications is to focus on calcium processing itself to improve recovery rate, still haves much room for improvement aspect processing speed and other.
Summary of the invention
The object of the invention is to overcome the defective of existing cored-wire, the segmentation of a kind of energy, layering, component, feeding in due order are provided, to control calcium processing reaction speed, simultaneously can together carry out Combined Processing with other deoxidation purificants, thereby improve the compound calcium processing core cabling wire of staged and layered component type of Molten Steel Cleanliness.
In order to solve this technical problem, the invention provides the compound calcium processing core cabling wire of a kind of staged and layered component type, comprise aluminium foil cylinder, sheetmetal cylinder, wherein the aluminium foil jacket casing is in the sheetmetal cylinder, the aluminium foil cylinder is divided into isometric or not isometric some sections, adopts one to tighten the ring separation between adjacent segment; Comprise from front to back calcium treatment agent layer in every section, contain the aluminium deoxidizer layer, the Wingdale bisque; With the starting point that is established as of refining slag system in the Clean Steel production process, by wire-feeding technique, in earlier stage add quick deoxidation and slag former is added the bottom of ladle in refining, increase deoxidation effect, accelerate the reaction of slag former and molten steel, the shortening refining time.
Adopt the aluminium foil cylinder, aluminium foil can participate in deoxygenation in molten steel; Be provided with the sheetmetal cylinder in the outside of aluminium foil cylinder, to increase its intensity.
Preferably, every meter, described aluminium foil cylinder is one section
Preferably, the interior diameter of described aluminium foil cylinder is 5-8mm.
Calcium treatment agent layer in every section, the length that contains aluminium deoxidizer layer, Wingdale bisque can be adjusted as required.
Preferably, the length of described calcium treatment agent layer is 40-60cm.
Beneficial effect of the present invention is: compare with the present cored-wire that uses, due to can segmentation, layering, component, successively add continuously the calcium treatment agent, contain aluminium deoxidizer, limestone powder, so reduced calcium processing reaction severe degree, calcium treating processes and other deoxidation purificants carry out Combined Processing, have improved the calcium recovery rate; Simultaneously, reduce calcium treatment agent total amount on unit length, improved wire-feeding velocity, be beneficial to the bottom of going deep into molten steel in ladle, the corresponding reaction contact area that increases lime slag making raw material and molten steel and is only compared speed of response at the surperficial slag-metal reaction of ladle and is greatly accelerated, and has shortened the calcium treatment time.
Description of drawings
Fig. 1 is that axis of no-feathering of the present invention is to cross-sectional schematic.
The accompanying drawing sign:
1, aluminium foil cylinder; 2, sheetmetal cylinder; 3, tighten ring; 4, calcium treatment agent layer; 5, contain the aluminium deoxidizer layer; 6, Wingdale bisque.
Embodiment
Be below a preferred embodiment of the present invention, it is only as explanation of the invention rather than restriction.
With reference to Fig. 1, the cored-wire that this segmentation composite calcium is processed, comprise aluminium foil cylinder 1, sheetmetal cylinder 2, aluminium foil cylinder 1 is enclosed within sheetmetal cylinder 2, the aluminium foil cylinder 1 every meter be one section, adopt one to tighten ring 3 separations between adjacent segment, pack into successively from front to back in every section calcium treatment agent layer 4, contain aluminium deoxidizer layer 5, Wingdale bisque 6, and compacting is tightened sealing in the end of aluminium foil cylinder 1, it is sealed fully, avoid contacting with air.Adopt the 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 to feed in molten steel.
As improvement of the present invention, the interior diameter of described aluminium foil cylinder 1 is 5-8mm; Calcium treatment agent layer 4 in every section, the length that contains aluminium deoxidizer layer 5, Wingdale bisque 6 can be adjusted as required; The length of described calcium treatment agent layer 4 is 40-60cm.Herein, calcium treatment agent 4 and contain aluminium deoxidation layer 5 and all can select the common calcium treatment agent in this area and contain the aluminium deoxidation layer, those skilled in the art are flexible choice as required.
Claims (4)
1. the cored-wire that composite calcium is processed, 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 isometric or not isometric some sections, adopts between adjacent segment and tighten the ring separation; Comprise successively from front to back calcium treatment agent layer in every section, contain aluminium deoxidizer layer and Wingdale bisque.
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 agent 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 true CN103146881A (en) | 2013-06-12 |
| CN103146881B 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) |
Cited By (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 |
| CN114075618A (en) * | 2021-11-22 | 2022-02-22 | 国铭铸管股份有限公司 | Inoculation material for smelting nodular cast iron and preparation process thereof |
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 |
Cited By (3)
| 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 |
| CN114075618A (en) * | 2021-11-22 | 2022-02-22 | 国铭铸管股份有限公司 | Inoculation material for smelting nodular cast iron and preparation process thereof |
| CN114075618B (en) * | 2021-11-22 | 2023-01-06 | 国铭铸管股份有限公司 | Inoculation material for smelting nodular cast iron and preparation process thereof |
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| Publication number | Publication date |
|---|---|
| CN103146881B (en) | 2015-03-18 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20150318 Termination date: 20200301 |