CN202162360U - Boron-iron cored wire - Google Patents
Boron-iron cored wire Download PDFInfo
- Publication number
- CN202162360U CN202162360U CN2011202413782U CN201120241378U CN202162360U CN 202162360 U CN202162360 U CN 202162360U CN 2011202413782 U CN2011202413782 U CN 2011202413782U CN 201120241378 U CN201120241378 U CN 201120241378U CN 202162360 U CN202162360 U CN 202162360U
- Authority
- CN
- China
- Prior art keywords
- boron
- iron
- spun yarn
- cored wire
- iron 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 - Fee Related
Links
Landscapes
- Inorganic Fibers (AREA)
Abstract
The utility model provides a boron-iron cored wire, which comprises a low-carbon steel sheath and boron-iron powder wrapped inside the low-carbon steel sheath, wherein the combined position of the low-carbon steel sheath is in a hook-and-loop fastener structure, so that powder leakage during transporting and feeding of the boron-iron cored wire is prevented. The boron-iron cored wire can be fed into a crystallizer of a continuous casting machine through a wire feeder, so that obtained steel billets cannot crack when being rolled and pressed. Compared with a traditional boron addition method, the boron yield of the boron-iron cored wire fed into the crystallizer can be improved by about 10%.
Description
Technical field
The present invention relates to a kind of core-spun yarn, specifically, relate to a kind of boron-iron core-spun yarn.
Background technology
Boron is element common in the steel alloy; It can strengthen the through hardening type of steel, can improve the intensity of steel, but boron is again a kind of active element simultaneously; It is easy to generate corresponding compounds and be present in the crystal boundary place with carbon, nitrogen and oxygen reaction, and the result has reduced the mechanical performance of steel.
For preventing to form the nitride of boron, make steel contain a certain amount of titanium usually, fixing the reaction with boron of nitrogen generated the nitride of boron; For preventing to form the oxide of boron, then carry out sufficient liquid steel pre-deoxidizing, in addition, reducing tapping and cast temperature also is to prevent that effectively boron from the measure of above-mentioned reaction taking place.
Although above measure is commonly used and effective, unsatisfactory, because these measures make smelting process become complicated inevitably and material consumption is increased.To sum up, the present technique field prevents that in exploration boron from producing the approach of above-mentioned bad reaction always.
Summary of the invention
The present invention provides a kind of boron-iron core-spun yarn, so that through this boron-iron core-spun yarn is directly fed the above-mentioned reaction that continuous cast mold prevents boron, thereby improves the performance of steel.
Described boron-iron core-spun yarn is by the low-carbon (LC) sheetmetal and be wrapped and wherein boron-iron powder constitutes.
The structure of the mild steel skin junction of described boron-iron core-spun yarn is a hasp structure.
The mild steel skin thickness of described boron-iron core-spun yarn is 0.2mm-0.4mm.
The boron content of the boron-iron in described boron-iron core-spun yarn is 18-25% (weight).
The granularity of the boron-iron in described boron-iron core-spun yarn is the 50-100 order.
Traditional boron method that adds is directly in steel ladle, to add boron-iron.Molten steel in the steel ladle contains more nitrogen and oxygen.When molten steel through calmness after tundish when getting into crystallizer, wherein nitrogen and oxygen content descend, thereby form the nitrogen of less boron and the compound of oxygen; The molten steel that gets into crystallizer is with after cold crystallizer wall contacts; Form a very thin solid box hat immediately, and fed in the crystallizer this moment, boron of the present invention-iron core-spun yarn is fully fusing and diffusion as yet; So; In said thin solid box hat, the content of boron is lower, and it also has little time to form corresponding compounds with described nitrogen, oxygen reaction.Owing in the crystal boundary of this solid box hat, have the nitrogen and the oxygen compound of harmful boron hardly, so the continuous casting billet that forms like this is not easy to crack when standing follow-up pressure processing.
Boron-iron in boron of the present invention-iron core-spun yarn is commercial conventional boron-iron, and this routine boron-iron is selected 50-100 purpose part after fragmentation, the screening of routine are handled, can use the pulvis in boron of the present invention-iron core-spun yarn as.When producing heavy in section continuous casting billet, should adopt thicker pulvis, vice versa.
For preventing boron of the present invention-iron core-spun yarn at transportation, line feeding hourglass powder, the present invention adopts the core-spun yarn of hasp structure.The line skin adopts mild steel to process, and its thickness is 0.2mm-0.4mm, when being used to produce the larger cross-section continuous casting billet, can select thicker sheetmetal for use, and vice versa.
Be used to prepare and prevent that boron of the present invention-iron core-spun yarn Processes and apparatus from all being conventional.
Description of drawings
Fig. 1 is boron of the present invention-iron core-spun yarn cross sectional representation.
Referring to Fig. 1, wherein, 1 is the mild steel sheetmetal, and 2 is boron-iron powder, and 3 is the hasp structure of said sheetmetal.
Specific embodiments
Embodiment 1
The ferro-boron of commercial boracic 20% is crushed to the granularity about 50 orders.Use SHB-6/B type wire coating machine with the boron-iron powder 2 of gained be wrapped in thickness as in the mild steel sheetmetal 1 of 0.3mm to process boron of the present invention-iron core-spun yarn, the structure of the junction of its middle low carbon steel sheetmetal 1 is a hasp structure 3.The external diameter of the boron of gained-iron core-spun yarn is 3.5mm.
In the crystallizer of above-mentioned boron-iron core-spun yarn with wire feeder feeding conticaster, this core-spun yarn is fusing and diffusion smoothly.The gained steel billet is standing not occur crackle when rolling.Add the contrast of boron method with tradition, the boron recovery rate of feeding core-spun yarn gained of the present invention at crystallizer improves about 10%.
Claims (5)
1. boron-iron core-spun yarn is characterized in that, it is by the mild steel sheetmetal and be wrapped and wherein boron-iron powder constitutes.
2. boron as claimed in claim 1-iron core-spun yarn is characterized in that, the structure of wherein said mild steel sheetmetal junction is a hasp structure.
3. boron as claimed in claim 2-iron core-spun yarn is characterized in that, the thickness of wherein said mild steel sheetmetal is 0.2mm-0.4mm.
4. boron as claimed in claim 3-iron core-spun yarn is characterized in that, wherein the boron content of said boron-iron is 18-25% (weight).
5. like claim 1-4 each described boron-iron core-spun yarn wherein, it is characterized in that the granularity of boron-iron wherein is the 50-100 order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202413782U CN202162360U (en) | 2011-07-08 | 2011-07-08 | Boron-iron cored wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202413782U CN202162360U (en) | 2011-07-08 | 2011-07-08 | Boron-iron cored wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202162360U true CN202162360U (en) | 2012-03-14 |
Family
ID=45798212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202413782U Expired - Fee Related CN202162360U (en) | 2011-07-08 | 2011-07-08 | Boron-iron cored wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202162360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174827A (en) * | 2013-05-28 | 2014-12-03 | 左生华 | Titanium-iron powder core spun yarn suitable for continuous casting crystallizer |
-
2011
- 2011-07-08 CN CN2011202413782U patent/CN202162360U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174827A (en) * | 2013-05-28 | 2014-12-03 | 左生华 | Titanium-iron powder core spun yarn suitable for continuous casting crystallizer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102212737B (en) | Core-spun thread and method for implementing molten steel vanadium-nitrogen alloying | |
| CN202401117U (en) | Cored wire | |
| CN102206731A (en) | Vanadium and nitrogen alloying cored wire and method for molten steel | |
| CN102206783B (en) | Molten steel alloying cored wire and method | |
| CN103882254B (en) | Have the xantal continuous casting tubing and production method thereof of high strength, high ductility concurrently | |
| CN1818086A (en) | Core-spun yarn for realizing molten steel vanadium and nitrogen alloying | |
| UA102086C2 (en) | Powders phlegmatized by metals or alloys, and method and reactor for producing thereof | |
| CN103045929A (en) | Method for producing ferrovanadium by aluminothermic process | |
| CN109355460A (en) | A kind of titaniferous composite alloy reinforcing core-spun yarn and its application in HRB400E screw-thread steel | |
| CN102994871A (en) | Method for smelting medium/high-carbon hard-wired steel by vanadium-titanium containing molten iron | |
| CN202162360U (en) | Boron-iron cored wire | |
| CN102321778A (en) | Method of deoxidation of medium carbon aluminum-containing steel in converter | |
| CN202936437U (en) | Compound core of metal calcium aluminum cored wire for steelmaking deoxidization | |
| CN103924035B (en) | Titanium aluminium core cabling wire and application thereof and Ti Alloying molten steel and preparation method thereof and a kind of titaniferous steel alloy | |
| CN103924036B (en) | Titaniferous cored-wire and application thereof and Ti Alloying molten steel and preparation method thereof and a kind of titaniferous steel alloy | |
| Chen et al. | Recent advances in inclusions and central segregation control technology in tyre cord steel and saw wire steel | |
| CN104017946A (en) | Weather-proof micro-alloyed steel and cored wire containing ferroalloy and ferroaluminum and application thereof and molten steel and preparation method thereof | |
| CN104073594B (en) | A kind of core-spun yarn and the titanium alloyed method of molten steel | |
| CN202415601U (en) | Steel-making solid calcium line composite cored wire | |
| CN104498769A (en) | Titanium alloy with strength greater than 1400MPa | |
| CN105385914A (en) | Magnesium-based wear-resisting and shock absorbing alloy | |
| CN104032078A (en) | Microalloyed steel, cored wire containing iron alloys and aluminium shots, application of cored wire, molten steel and preparation method of molten steel | |
| CN104032085A (en) | Microalloyed weathering steel, cored wire containing iron alloys and silicon-calcium alloy, application of cored wire, molten steel and preparation method of molten steel | |
| CN105734419B (en) | A kind of V, Ti micro alloyed steel and its smelting process and purposes | |
| CN103146881A (en) | Core-spun yarn for treating compound calcium |
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: 20120314 Termination date: 20140708 |
|
| EXPY | Termination of patent right or utility model |