CN106399636A - High-magnesium rare earth magnesium alloy core-spun yarn and preparation method thereof - Google Patents
High-magnesium rare earth magnesium alloy core-spun yarn and preparation method thereof Download PDFInfo
- Publication number
- CN106399636A CN106399636A CN201611016239.3A CN201611016239A CN106399636A CN 106399636 A CN106399636 A CN 106399636A CN 201611016239 A CN201611016239 A CN 201611016239A CN 106399636 A CN106399636 A CN 106399636A
- Authority
- CN
- China
- Prior art keywords
- magnesium
- rare earth
- spun yarn
- core
- steel
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0006—Adding metallic additives
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
- C21C7/0645—Agents used for dephosphorising or desulfurising
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention relates to an alloy powder core-spun yarn, in particular to a high-magnesium rare earth magnesium alloy core-spun yarn. The outer layer of the high-magnesium rare earth magnesium alloy core-spun yarn is a common steel strip which is 0.3-0.5 millimeter thick, the core part of the high-magnesium rare earth magnesium alloy core-spun yarn is rare earth magnesium alloy powder, and a powder layer with a heat insulating function is arranged between the outer layer and the core part; and the alloy powder consists of the following element components in percentage by mass: 40-50% of Mg, 0.5-2.5% of Ca, 1.0-2.5% of Al, 25-35% of Si, 1-2.5% of Ti, 0.5-3.5% of Ba, 2.5-5.0% of Mn, 1.0-2.0% of rare earth element, less than or equal to 0.1% of P, less than or equal to 0.1% of S and the balance Fe. The core-spun yarn is added into micro-alloyed steel, so that a magnesium treatment process is stable and a relatively high absorption rate is obtained, and therefore, the confronting problems existed are solved better.
Description
Technical field
The present invention relates to a kind of alloyed powder core-spun yarn.
Background technology
China's steel industry is in summit period in history, it is contemplated that China's year output of steel is up in the coming years
1800000000 tons, core-spun yarn market is up to more than 5,000,000,000 yuan.Counted according to IISI, the steel of countries in the world in 2011 always produces
Amount reaches 1,600,000,000 tons, amplification 15%；And China continues to hold a post or title the first in the world with 700,000,000 tons of yield, in addition, with scientific and technical continuous
Progressive, various Structural Designs increasingly tend to high parameter, lightweight and maximization, to the desired strength of ferrous materials performance more
High, toughness is more excellent, and core-spun yarn wire feeding process technology plays indispensable very important effect to this.
Obtain more high cleanliness, the product of more high uniformity is the focus that current iron and steel produces and studies, and is also metallurgical skill
The developing direction of art.With regard to current production specifications, the control of impurity content in steel has reached higher level (in steel
Total impurities:S+P+N+H+T O≤100 × 10-6), and the reduction further with impurity content in molten steel, press from both sides in steel
The harmful effect effect that debris produce to steel products just becomes apparent from, and therefore, the different quality according to product requires to control
Just it is particularly important with the character improving steel inclusion.
The most typical, inclusions class technology that is being most widely used is the Calcium treatment of Al deoxidization steel.Calcium treatment can
So that Al2O3 in steel is mingled with the composite oxides being transformed into low melting point, is conducive to its polymerization to grow up and excludes from molten steel, not only
Can freeze anti-waterstop port, and the quantity that in steel, oxide is mingled with can be reduced；Meanwhile, it is trapped in its shape of field trash in steel
Shape is almost circular and is irregularly distributed in steel, can mitigate the harm to Steel Properties.But the problem that Calcium treatment exists
It is：Although the quantity that in steel, oxide is mingled with can be greatly reduced, often size ratio is larger for the field trash that left behind, by
It is unlikely to deform in CaO Al2O3 field trash, in the operation of rolling, micro-crack, cavity can be formed along deformation direction around field trash,
Lead to a series of deterioration of performances of steel.Particularly those have the steel grade of rigors for fatigue behaviour, aborning then not
Permission adopts Calcium treatment.The pure product made from steel requiring for higher quality, finds new inclusion modification means, to mitigate and to disappear
Except the harm caused by aluminium deoxidation steel inclusion, have become as a problem in the urgent need to address during steel products produce.
At a temperature of steel-making, magnesium not only has a fabulous affinity with oxygen and sulfur, but also have extremely strong to field trash shape
State and the control ability of size.For Al deoxidization steel, magnesium processes while reducing the dissolved oxygen in steel further, can be by steel
In Al2O3 be mingled with and be changed into dystectic MgO Al2O3, because it is existed with solid-state in molten steel, there is no the mistake that polymerization is grown up
Journey, therefore, the size that its oxide is mingled with can be very tiny, and Dispersed precipitate is in steel.Research shows MgO present in steel
Al2O3 is mingled with size and can control within 5 μm, and the mechanical property of steel is had no adverse effect substantially.Equally, add magnesium in steel to exist
While reducing sulfur content further, sulfide in steel is made presented in tiny MgS or MgS-MnS, to mitigate because of MnS folder
The miscellaneous impact that Steel Properties are brought.
Although adopting the advantage that magnesium is processed very prominent on molten steel, due to magnesium elements own characteristic（Low melting point, 650
℃；Low boiling, 1080 DEG C；High vapour pressure, is more than 2.0Mpa during 1600 DEG C of temperature of steel-making）, there is no effective magnesium addition side
Before method, in steelmaking process, molten steel is carried out with magnesium process and also there is very big difficulty.
Content of the invention
It is an object of the invention to provide a kind of high magnesium magnesium-rare earth core-spun yarn, this alloyed powder is by the side using core-spun yarn
Method can make magnesium processing procedure steadily and obtain higher absorption rate to be added in micro alloyed steel, so that current problems faced is obtained
Solve to preferable.
In order to realize above-mentioned purpose, present invention employs following technical scheme：
A kind of high magnesium magnesium-rare earth core-spun yarn, this core-spun yarn outer layer is 0.3-0.5 millimeters thick ordinary steel belts, and center portion is rare earth magnesium
Alloy powder, the marginal powder layer being to have heat insulating function, alloy powder is by mass percentage by following unit
Plain component is constituted：
Mg 40 ~ 50%,
Ca 0.5 ~ 2.5%,
Al 1.0 ~ 2.5%,
Si 25 ~ 35%,
Ti 1 ~ 2.5%,
Ba 0.5 ~ 3.5%,
Mn 2.5 ~ 5.0%,
Rare earth element 1.0 ~ 2.0%,
P≤0.1%,
S ≤0.1%；
Fe surplus.
Preferably, this alloy powder is made up of elements below component by mass percentage：
Mg 42 ~ 45%,
Ca 1.0 ~ 2.0%,
Al 1.5 ~ 2.0%,
Si 28 ~ 32%,
Ti 1.5 ~ 2.0%,
Ba 1.0 ~ 3.0%,
Mn 3.0 ~ 4.0%,
Rare earth element 1.0 ~ 2.0%,
P≤0.1%,
S ≤0.1%；
Fe surplus.
Preferably, the granularity of this alloy powder is 0.1 ~ 2.0mm.
The present invention add aluminum can crystal grain thinning, improve impact flexibility.Aluminum also has non-oxidizability and a corrosion resistance, aluminum with
Chromium, silicon share, and are remarkably improved the high temperature non-scale performance of steel and the ability of high-temperature corrosion resistance.Manganese is added not only to have enough tough
Property, and have higher intensity and hardness, improve the quenching property of steel, improve the hot-working character of steel.Titanium is added to make the interior tissue of steel
Densification, crystal grain thinning power；Reduce aging sensitivity and cold brittleness.
Ba is active element, it is possible to decrease inclusion content in melting steel content, increased the flowing of molten steel, makes molten steel more uniform.
Compound use Ca, Ba deoxidation, its product can form polynary mutual solution, reduces activity and the fusing point of deoxidation productss.Ba can play
Promote the effect of Ca, be conducive to deoxidation to carry out, make molten steel purifying effect more preferably, be conducive to steel inclusion to assemble and float.Compound
Using Ca, Ba deoxidation, product is the composite oxides of low melting point, is conducive to steel inclusion to assemble and floats.And can drop
The activity of low deoxidation productss and fusing point, are conducive to deoxidation to carry out, and make molten steel purifying effect more preferable.
The present invention is applied to core-spun yarn.Outer layer is 0.3-0.5 millimeters thick ordinary steel belts, and center portion is magnesium-rare earth powder,
The marginal powder layer being to have heat insulating function.Magnesium core spun yarn using said structure can be by adjusting powder
The thickness of layer and physical property, to adjust its heat-conducting effect, thus adjusting the temperature of magnesium heart yearn during wire feeding process, prevent it from shifting to an earlier date
Fusing vaporization, to reach the purpose that magnesium is sent into molten steel desired depth, thus can make magnesium processing procedure steadily and obtain relatively
High-absorbility, makes current problems faced preferably be solved.Processed using rare earth magnesium core spun yarn, plus magnesium process ratio adopts
Steadily, magnesium can effectively add in molten steel ordinary construction core-spun yarn containing magnesium, and obtains more stable recovery rate.Through magnesium
After process, steel inclusion type, form and size significant change.Large-sized Al2O3 is mingled with and is changed into tiny MgO
Al2O3, makes MnS in steel be mingled with presented in tiny MgS or MgS-MnS simultaneously.By using rare earth magnesium core-spun yarn
Method adding magnesium can not only solve the problems, such as that the response rate is low, but also solve the problems, such as plus magnesium during the big rolling of molten steel, open
Send out the application of rare earth magnesium core-spun yarn, there is significant economic benefit.
Specific embodiment
Embodiment 1
A kind of high magnesium magnesium-rare earth core-spun yarn, this core-spun yarn outer layer is 0.3-0.5 millimeters thick ordinary steel belts, and center portion is rare earth magnesium
Alloy powder, the marginal powder layer being to have heat insulating function, alloy powder is by mass percentage by following unit
Plain component is constituted：
Mg 42%,
Ca 2.0%,
Al 1.5%,
Si 25%,
Ti 2.0%,
Ba 3.0%,
Mn 4.0%,
Rare earth element 1.0%,
P≤0.1%,
S ≤0.1%；
Fe surplus.
Wherein choose rare earth magnesium and ferrosilicon and other elements are smelted in a vacuum furnace.Under certain process conditions, carry out
Melting purifies, and then pours into ingot casting.Ingot casting, through broken pure one-tenth certain particle size, is overmolding to a diameter of 13 millimeters of cored using iron sheet
Line.Outer layer be 0.3-0.5 millimeters thick ordinary steel belts, center portion be magnesium-rare earth powder, marginal be have heat-insulated
The powder layer of function.This kind of core-spun yarn was inserted in molten steel with certain payingoff speed in the refine later stage, and the response rate of Mg is average
35%.
Embodiment 2
A kind of high magnesium magnesium-rare earth core-spun yarn, this core-spun yarn outer layer is 0.3-0.5 millimeters thick ordinary steel belts, and center portion is rare earth magnesium
Alloy powder, the marginal powder layer being to have heat insulating function, alloy powder is by mass percentage by following unit
Plain component is constituted：
Mg 45%,
Ca 2.5%,
Al 2.0%,
Si 30%,
Ti 2.5%,
Ba 2.0%,
Mn 3.0%,
Rare earth element 1.0%,
P≤0.1%,
S ≤0.1%；
Fe surplus.
Wherein choose rare earth magnesium and ferrosilicon and other elements are smelted in a vacuum furnace.Under certain process conditions, carry out
Melting purifies, and then pours into ingot casting.Ingot casting, through broken pure one-tenth certain particle size, is overmolding to a diameter of 13 millimeters of cored using iron sheet
Line.Outer layer be 0.3-0.5 millimeters thick ordinary steel belts, center portion be magnesium-rare earth powder, marginal be have heat-insulated
The powder layer of function.This kind of core-spun yarn was inserted in molten steel with certain payingoff speed in the refine later stage, and the response rate of Mg is average
35%.
Embodiment 3
A kind of high magnesium magnesium-rare earth core-spun yarn, this core-spun yarn outer layer is 0.3-0.5 millimeters thick ordinary steel belts, and center portion is rare earth magnesium
Alloy powder, the marginal powder layer being to have heat insulating function, alloy powder is by mass percentage by following unit
Plain component is constituted：
Mg 48%,
Ca 1.5%,
Al 2.0%
Si 30%,
Ti 1.5%,
Ba 2.5%,
Mn 3.0%,
Rare earth element 2.0%,
P≤0.1%,
S ≤0.1%；
Fe surplus.
Wherein choose rare earth magnesium and ferrosilicon and other elements are smelted in a vacuum furnace.Under certain process conditions, carry out
Melting purifies, and then pours into ingot casting.Ingot casting, through broken pure one-tenth certain particle size, is overmolding to a diameter of 13 millimeters of cored using iron sheet
Line.Outer layer be 0.3-0.5 millimeters thick ordinary steel belts, center portion be magnesium-rare earth powder, marginal be have heat-insulated
The powder layer of function.This kind of core-spun yarn was inserted in molten steel with certain payingoff speed in the refine later stage, and the response rate of Mg is average
35%.
Claims (4)
1. a kind of high magnesium magnesium-rare earth core-spun yarn it is characterised in that this core-spun yarn outer layer be 0.3-0.5 millimeters thick ordinary steel belts,
Center portion is magnesium-rare earth powder, the marginal powder layer being to have heat insulating function, and percent mass pressed by alloy powder
Constitute than by elements below component：
Mg 40 ~ 50%,
Ca 0.5 ~ 2.5%,
Al 1.0 ~ 2.5%,
Si 25 ~ 35%,
Ti 1 ~ 2.5%,
Ba 0.5 ~ 3.5%,
Mn 2.5 ~ 5.0%,
Rare earth element 1.0 ~ 2.0%,
P≤0.1%,
S ≤0.1%；
Fe surplus.
2. a kind of high magnesium magnesium-rare earth core-spun yarn according to claim 1 is it is characterised in that quality pressed by this alloy powder
Percentage ratio is made up of elements below component：
Mg 42 ~ 45%,
Ca 1.0 ~ 2.0%,
Al 1.5 ~ 2.0%,
Si 28 ~ 32%,
Ti 1.5 ~ 2.0%,
Ba 1.0 ~ 3.0%,
Mn 3.0 ~ 4.0%,
Rare earth element 1.0 ~ 2.0%,
P≤0.1%,
S ≤0.1%；
Fe surplus.
3. a kind of high magnesium magnesium-rare earth core-spun yarn according to claim 1 and 2 is it is characterised in that the grain of this alloy powder
Spend for 0.1 ~ 2.0mm.
4. a kind of preparation method of high magnesium magnesium-rare earth core-spun yarn according to claim 1 and 2 is it is characterised in that wherein
Choose rare earth magnesium and ferrosilicon and other elements are smelted in a vacuum furnace；Then carry out melting purification, then pour into ingot casting；Ingot casting
Through broken pure one-tenth certain particle size, it is overmolding to a diameter of 13 millimeters of core-spun yarn using iron sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611016239.3A CN106399636A (en) | 2016-11-18 | 2016-11-18 | High-magnesium rare earth magnesium alloy core-spun yarn and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611016239.3A CN106399636A (en) | 2016-11-18 | 2016-11-18 | High-magnesium rare earth magnesium alloy core-spun yarn and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106399636A true CN106399636A (en) | 2017-02-15 |
Family
ID=58068487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611016239.3A Withdrawn CN106399636A (en) | 2016-11-18 | 2016-11-18 | High-magnesium rare earth magnesium alloy core-spun yarn and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106399636A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635013A (en) * | 2022-03-21 | 2022-06-17 | 上海大学 | Rare earth metal wire core-spun yarn and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5340615A (en) * | 1976-09-27 | 1978-04-13 | Sumitomo Metal Ind Ltd | Steel nitriding agent |
| CN1313408A (en) * | 2000-12-12 | 2001-09-19 | 北京正大银光科技有限公司 | Si-Mg alloy cored wine |
| CN1465733A (en) * | 2002-06-29 | 2004-01-07 | 包头文鑫实业有限公司 | Process for making core agent and core yarn of high magnesium alloy core-spun yarn |
| CN101875994A (en) * | 2010-03-31 | 2010-11-03 | 湖北猴王焊材有限公司 | Novel weathering resistant steel microalloying compound core-spun yarn |
-
2016
- 2016-11-18 CN CN201611016239.3A patent/CN106399636A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5340615A (en) * | 1976-09-27 | 1978-04-13 | Sumitomo Metal Ind Ltd | Steel nitriding agent |
| CN1313408A (en) * | 2000-12-12 | 2001-09-19 | 北京正大银光科技有限公司 | Si-Mg alloy cored wine |
| CN1465733A (en) * | 2002-06-29 | 2004-01-07 | 包头文鑫实业有限公司 | Process for making core agent and core yarn of high magnesium alloy core-spun yarn |
| CN101875994A (en) * | 2010-03-31 | 2010-11-03 | 湖北猴王焊材有限公司 | Novel weathering resistant steel microalloying compound core-spun yarn |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635013A (en) * | 2022-03-21 | 2022-06-17 | 上海大学 | Rare earth metal wire core-spun yarn and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106661705B (en) | carburized alloy steel and preparation method and application thereof | |
| CN101153370B (en) | Low alloy high-strength steel plate capable of being welded in large energy input and method of producing the same | |
| CN103526131B (en) | High-strength stainless steel coffee pot material and preparation method thereof | |
| CN103510020B (en) | A kind of spring steel wire rod and inclusion control method thereof | |
| CN111331093B (en) | Casting powder for rare earth microalloyed steel bar crystallizer and preparation and application methods thereof | |
| CN105385935B (en) | A kind of high silicon molybdenum vermicular cast iron and its production method | |
| CN111187980B (en) | Rare earth microalloyed high-strength construction steel bar and production method thereof | |
| CN103243268A (en) | High-quality H13 rear earth mold steel and production method thereof | |
| CN102925811B (en) | Easy-cutting vanadium-feeding high-aluminum nitriding steel and preparation method thereof | |
| US20230012944A1 (en) | Hot-Work Die Steel Electroslag Remelted Ingot and Manufacturing Method Thereof | |
| CN102534416A (en) | Steel for freight train connecting piece and preparation method thereof | |
| CN113652609A (en) | Low-cost 42CrMoA round steel and production method thereof | |
| CN103614614A (en) | Lanthanum-iron alloy for rare earth steel production | |
| CN1908198A (en) | Aluminum-magnesium alloy deoxidizer for smelting steel and preparation method thereof | |
| CN106521084A (en) | Rare earth magnesium alloy cored wire containing multiple elements | |
| CN114635077A (en) | Super austenitic stainless steel and preparation method thereof | |
| CN106399636A (en) | High-magnesium rare earth magnesium alloy core-spun yarn and preparation method thereof | |
| CN106399629A (en) | Magnesium-rare earth alloy core-spun yarn and preparation method thereof | |
| CN103627847B (en) | For the mixed rare earth of lanthanum and cerium iron alloy that rare earth steel is produced | |
| CN103805836A (en) | Cerium-ferrum alloy for producing rare earth steel | |
| CN103667928A (en) | Cold shortness resistant N80 petroleum pipe steel and manufacturing method thereof | |
| CN106939367A (en) | A kind of solid calcium metal, ferrosilicon, magnesium-rare earth alloy composite core-spun yarn | |
| CN106521085A (en) | Multi-element rare earth magnesium alloy powder of cored wire | |
| CN106636543A (en) | Core-spun wire high-magnesium-content magnesium rare earth alloy powder | |
| CN106399634A (en) | Core-spun yarn multi-element high-magnesium rare earth magnesium alloy powder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170215 |