CN1644744A - Rare earth boron micro-alloyed high manganese steel - Google Patents
Rare earth boron micro-alloyed high manganese steel Download PDFInfo
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- CN1644744A CN1644744A CN 200510045639 CN200510045639A CN1644744A CN 1644744 A CN1644744 A CN 1644744A CN 200510045639 CN200510045639 CN 200510045639 CN 200510045639 A CN200510045639 A CN 200510045639A CN 1644744 A CN1644744 A CN 1644744A
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- manganese steel
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Abstract
One kind of rare earth boraxium alloying high manganese steel that has the mass ratio of ingredient: C 0.9-1.6, Mn 13-30, B 0.0005-0.02, Re 0.01-0.05, Si 0.3-1.0, Cr<3, Mo<2, Ni<1, Cu<1, V+Ti+Nb+Zr+N+Al+Ca<2 S<0.04, P<0.07, the residue is Fe. Its process includes blending, melting, tapping of molten steel, adding alterant, packing. Its advantages include a good abradability of more than two fold than formal high manganese steel.
Description
Technical field
The invention belongs to the metallic substance technical field, particularly a kind of rare earth boron micro-alloyed high manganese steel.
Background technology
At present, the annual metal wear resistant material that consumes of China is more than 3,000,000 tons, and wherein high mangaenese steel accounts for significant proportion.Still use high mangaenese steel in a large number at industrial sectors such as metallurgical mine, building materials, engineering machinery, railway transportations.But existing high mangaenese steel is fully work hardening under little impact, low-stress, and wear resistance is low under the HI high impact condition.
Summary of the invention
Problem at existing high mangaenese steel exists the invention provides a kind of rare earth boron micro-alloyed high manganese steel.
High mangaenese steel of the present invention is the Complex Alloy Steel that contains elements such as rare earth, boron, and its composition is by mass percentage: C 0.9～1.6, and Mn 13～30, and B 0.0005～0.02, and Re 0.01～0.05, and Si 0.3～1.0, S＜0.04, and P＜0.07, surplus is Fe.
Rare earth boron micro-alloyed high manganese steel of the present invention can also contain following alloying element, and its chemical ingredients (quality %) is: Cr＜3, Mo＜2, Ni＜1, Cu＜1, V+Ti+Nb+Zr+N+Al+Ca＜2.
Main chemical compositions of the present invention is selected according to being:
(1) carbon: C has two effects in high mangaenese steel, and the one, impel to form single-phase austenite structure, the 2nd, solution strengthening is to obtain high mechanical property.
(2) manganese: Mn is the principal element of stable austenite, and the effect that enlarges the austenite phase region is arranged in steel.Mn most of solid solution in steel forms and subrogates formula sosoloid in austenite, and matrix is strengthened; But because Mn atomic radius and Fe atomic radius difference are little, so strengthening effect is less.
(3) chromium: Cr atom and Fe radius are very approaching, can form continuous solid solution, after Cr is dissolved in austenite, can improve the yield strength of steel, but unit elongation is decreased.
(4) molybdenum: Mo is when the austenitic steel condensation, and the part solid solution is in austenite, and part is distributed in the carbide, and Mo is when significantly improving the yield strength of steel, and toughness does not reduce, even also has raising.
(5) nickel: the Ni solid solution plays an important role to austenitic stability in the high mangaenese steel austenite, and improves the low-temperature flexibility of steel; Can suppress acicular carbide between 300～500 ℃ separates out.Nickel is to improving mechanical property, and improving processing performance has significant effect.
(6) copper: Cu produces the precipitation strength effect in steel, can improve the corrosion resisting property of steel.
(7) boron: B is a surface active element, is enriched in the austenite grain boundary place, mainly is present in the lattice defect position.B improves the density of steel.B can play auxiliary desoxydatoin in the low steel of deoxidation degree.In certain add-on, impelling strength is improved, under low condition of impact abrasive, when boron content is higher, can improve wear resistance.
(8) rare earth element: Re plays desulfurization, degass in steel-making, cleaning molten steel.In high mangaenese steel, can form RC, RC between Re and the C
2, R
2C
3In the carbide of several types, fusing point is more than 2000 ℃, and in the process of setting, as the crystallization nuclei of dispersivity, the tissue of refinement high mangaenese steel makes the intracrystalline carbide shape turn to bulk by needle-like, and grain boundary carbide turns to discontinuous lumps.After adding Re, make intensity, toughness, the work hardening capacity of high mangaenese steel that raising all be arranged, thereby significantly improved wear resistance.
(9) the part solid solution is in matrix in high mangaenese steel for vanadium: V, and all the other exist with carbide, and V is crystal grain thinning effectively, increases the carbide hard particle, and the high mangaenese steel yield strength is significantly improved, but plasticity descends.
(10) titanium: Ti is crystal grain thinning effectively.When titanium and vanadium added high mangaenese steel simultaneously, wear resistance had a more substantial increase.
(11) zirconium: Zr solubleness in austenite is very little, and the binding ability of Zr and oxygen, sulphur, nitrogen, hydrogen is all very strong, and the effect of deoxidation, desulfurization, dehydrogenation, denitrification is arranged in steel.Zr is very strong carbide forming element, can form the ZrC of high-melting-point (3530 ℃).The high melting compound of zirconium can be used as crystallization nuclei, plays the crystallization of refinement tissue.
(12) niobium: Nb effect and V, Ti, Zr in steel is similar.Nb and C, N, O have very strong avidity, form niobium carbide, and that exist in the actual steel is Nb
4C
3But add crystal grain thinning behind the Nb in the steel, Nb obviously increases the strength property of high mangaenese steel, and yield strength improves nearly 1 times.When being subjected to impact load, the reinforcement speed of steel improves very fast, thereby very wear-resisting.
(13) nitrogen: N is dissolved in and forms interval type sosoloid in the austenite, and steel is strengthened.N also has very strong avidity with V, Ti, Cr, Al etc., the melting point compound height that pyroreaction generates, and crystalline structure, lattice constant and austenitic type like or close, its compound very easily forms crystallization nuclei in steel, play the effect of crystal grain thinning.
(14) deoxidizing capacity of aluminium: Al is very strong, and the aluminium in the high mangaenese steel adds as reductor, when phosphorus content is higher in the steel, improves the deleterious effect that aluminium content can reduce phosphorus.But Al reduces the impelling strength of high mangaenese steel.
(15) silicon: Si does not add as alloying element usually, plays auxiliary desoxydatoin in the conventional content scope, and its content did not have obvious influence less than 1% o'clock to mechanical property.
(16) calcium: Ca is that slag making materials is brought into and in the residual steel, its content is small, and mechanical property is not had influence.
(17) phosphorus: P is harmful element in high mangaenese steel, must strict its content of control.
(18) sulphur: S combines with Mn in high mangaenese steel and generates the high-melting-point manganese sulfide, and the manganese sulfide major part enters among the slag, and residual sulfur content is very low in the steel.
---melting---tapping---with alterant---cast that technical process of the present invention is: batching.
Furnace charge is made up of conversion pig, steel scrap and iron alloy.The most handy pig iron containing boron of ferro-boron replaces aborning, and the boron in the pig iron containing boron is rationally utilized, and can reduce the cost of high mangaenese steel again.Smelting furnace adopts three-phawse arc furnace or alkaline medium-frequency induction furnace, according to the scaling loss situation of each element in the stove, adjusts charge composition, require tapping temperature 〉=1550 ℃, alterant adopts rare earth ferrosilicon alloy, and its composition is by mass percentage: Re24～30%, Si30～40%, surplus are Fe.Teeming temperature is 1400～1480 ℃.
The present invention has given full play to high mangaenese steel carbon, manganese content height, and the characteristics of work hardening are arranged, and adds other multiple alloying element simultaneously, and effects such as molten admittedly reinforcement, precipitation strength are arranged respectively.Proof is produced Hubei Province plate of jaw crusher with rare earth boron micro-alloyed high manganese steel of the present invention by experiment, and during broken iron alloy, wear resistance is than existing high mangaenese steel improve more than 50%; Produce φ 2.7m * 2.1m nickel minerals ball grinding machine lining board with high mangaenese steel of the present invention and surpass 2 years work-ing life, its wear resistance improves more than 1 times than common high mangaenese steel.
Embodiment
Example 1: the high mangaenese steel that jaw crusher Hubei Province plate is used
Its composition is by mass percentage: C 1.01, and Si 0.69, and Mn 13.13, and P 0.034, and S 0.02, and Cr 1.07, and B 0.0008, and Re 0.02, and surplus is Fe.
Its preparation method is pressed preceding method operation, the mechanical property after the tough processing of high mangaenese steel water of preparation: HB=205, a
K=141J/cm
2
Example 2: ball grinding machine lining board high mangaenese steel
Its composition is by weight percentage: C 1.58, and Si 0.77, and Mn 18.57, and P 0.04, and S 0.03, and Cr 2.57, and B 0.005, and Re 0.015, and trace element also has Nb, Al, and Ca, surplus is Fe.
Its technological process is operated according to preceding method, the mechanical property of the high mangaenese steel of preparation after the tough processing of water: HB=230, a
K=150J/cm
2
Claims (4)
1, a kind of rare earth boron micro-alloyed high manganese steel, it is characterized in that the composition of this high mangaenese steel is by mass percentage: C 0.9～1.6, and Mn 13～30, and B 0.0005～0.02, and Re 0.01～0.05, and Si 0.3～1.0, S＜0.04, P＜0.07, surplus is Fe.
2,, it is characterized in that the chemical ingredients of this high mangaenese steel also can contain by mass percentage: Cr＜3, Mo＜2, Ni＜1, Cu＜1, V+Ti+Nb+Zr+N+Al+Ca＜2 according to the described rare earth boron micro-alloyed high manganese steel of claim 1.
3, according to the preparation method of the described rare earth boron micro-alloyed high manganese steel of claim 1, comprise batching, melting, tap, with alterant, cast step, it is characterized in that its batching is by mass percentage: C 0.9～1.6, Mn 13～30, and B 0.0005～0.02, and Re 0.01～0.05, Si 0.3～1.0, S＜0.04, P＜0.07, surplus is Fe; Adopt three-phawse arc furnace or alkaline medium-frequency induction furnace melting, the rare earth ferrosilicon alloy alterant is added in tapping temperature 〉=1550 ℃, and teeming temperature is 1400～1480 ℃.
4, according to the preparation method of the described rare earth boron micro-alloyed high manganese steel of claim 3, it is characterized in that adopting rotten the processing, alterant is a rare earth ferrosilicon alloy, consists of: Re24～30%, Si30～40%, surplus is Fe.
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| CNB2005100456392A CN1301340C (en) | 2005-01-11 | 2005-01-11 | Rare earth boron micro-alloyed high manganese steel |
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|---|---|---|---|
| CNB2005100456392A CN1301340C (en) | 2005-01-11 | 2005-01-11 | Rare earth boron micro-alloyed high manganese steel |
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| CN1644744A true CN1644744A (en) | 2005-07-27 |
| CN1301340C CN1301340C (en) | 2007-02-21 |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101884945A (en) * | 2010-06-30 | 2010-11-17 | 清原满族自治县三方耐磨材料有限公司 | Hammer head for crusher and processing method thereof |
| CN101709430B (en) * | 2009-12-07 | 2011-08-10 | 淮阴工学院 | High manganese steel crusher hammer with high original hardness and manufacturing method thereof |
| CN102261522A (en) * | 2011-07-22 | 2011-11-30 | 江苏联兴成套设备制造有限公司 | Rear earth abrasion-resistant heat-resistant corrosion-resistant alloy pipe |
| CN102286704A (en) * | 2011-08-26 | 2011-12-21 | 三一重型装备有限公司 | Wear-resistant corrosion-resistant high-manganese steel and preparation method thereof |
| CN102286703A (en) * | 2011-08-26 | 2011-12-21 | 三一重型装备有限公司 | High-manganese steel and preparation method thereof |
| CN102605268A (en) * | 2012-03-20 | 2012-07-25 | 三一重型装备有限公司 | Super-high manganese steel and preparation method thereof |
| CN103436656A (en) * | 2013-08-26 | 2013-12-11 | 江苏大学 | Method for carrying out boron microalloying on steel by using borax instead of ferroboron |
| CN103993224A (en) * | 2014-04-23 | 2014-08-20 | 中建材宁国新马耐磨材料有限公司 | Medium-manganese steel crusher hammerhead and making method thereof |
| CN104120369A (en) * | 2014-07-11 | 2014-10-29 | 安徽省三方耐磨股份有限公司 | A hammerhead used for a hammer crusher |
| CN104164624A (en) * | 2014-07-24 | 2014-11-26 | 宁国市开源电力耐磨材料有限公司 | High-manganese steel liner plate for bowl mill |
| CN104258922A (en) * | 2014-07-24 | 2015-01-07 | 宁国市开源电力耐磨材料有限公司 | High-chromium alloy wear-resistant lining board for jaw crusher |
| CN104278213A (en) * | 2014-07-22 | 2015-01-14 | 安徽省三方耐磨股份有限公司 | Boron-containing ultrahigh-manganese steel |
| CN105316586A (en) * | 2015-10-28 | 2016-02-10 | 安徽省三方新材料科技有限公司 | High manganese steel lining plate for hard rock crusher and preparing method for high manganese steel lining plate |
| CN107058859A (en) * | 2016-08-30 | 2017-08-18 | 刘海永 | A kind of composite micro-alloyed alloy of the rare earth made of steel slags and its application |
| CN107130163A (en) * | 2017-04-27 | 2017-09-05 | 东北大学 | A kind of method that utilization pig iron containing boron improves Q235 steel yield strengths |
| CN107794412A (en) * | 2016-08-29 | 2018-03-13 | 宁波高新区力红新材料科技有限公司 | A kind of aluminium alloy and casting method |
| CN108531730A (en) * | 2018-04-10 | 2018-09-14 | 抚顺特殊钢股份有限公司 | The vacuum induction furnace smelting technique of lanthanum element recovery rate in a kind of raising high temperature alloy |
| CN109023155A (en) * | 2018-07-26 | 2018-12-18 | 含山县兴达球墨铸铁厂 | A kind of ball mill wear-resistant high-ductility liner plate |
| CN109487178A (en) * | 2018-12-29 | 2019-03-19 | 广西长城机械股份有限公司 | High-purity ultra-high manganese steel and its preparation process |
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| SU1461773A1 (en) * | 1987-03-23 | 1989-02-28 | Институт проблем литья АН УССР | Steel |
| US5069871A (en) * | 1989-11-08 | 1991-12-03 | Esco Corporation | Method of using an austenitic steel alloy as a wear part subject to gouging abrasion type metal loss |
| CN1039834C (en) * | 1993-05-06 | 1998-09-16 | 东北大学 | Rare earth boron complex alloy wear-resisting cast iron |
| JP3273404B2 (en) * | 1995-10-24 | 2002-04-08 | 新日本製鐵株式会社 | Manufacturing method of thick high hardness and high toughness wear resistant steel |
| JP2003105483A (en) * | 2001-09-28 | 2003-04-09 | Kogi Corp | Composite roll for hot rolling |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709430B (en) * | 2009-12-07 | 2011-08-10 | 淮阴工学院 | High manganese steel crusher hammer with high original hardness and manufacturing method thereof |
| CN101884945A (en) * | 2010-06-30 | 2010-11-17 | 清原满族自治县三方耐磨材料有限公司 | Hammer head for crusher and processing method thereof |
| CN102261522A (en) * | 2011-07-22 | 2011-11-30 | 江苏联兴成套设备制造有限公司 | Rear earth abrasion-resistant heat-resistant corrosion-resistant alloy pipe |
| CN102286704A (en) * | 2011-08-26 | 2011-12-21 | 三一重型装备有限公司 | Wear-resistant corrosion-resistant high-manganese steel and preparation method thereof |
| CN102286703A (en) * | 2011-08-26 | 2011-12-21 | 三一重型装备有限公司 | High-manganese steel and preparation method thereof |
| CN102605268A (en) * | 2012-03-20 | 2012-07-25 | 三一重型装备有限公司 | Super-high manganese steel and preparation method thereof |
| CN102605268B (en) * | 2012-03-20 | 2014-04-23 | 三一重型装备有限公司 | Super-high manganese steel and preparation method thereof |
| CN103436656B (en) * | 2013-08-26 | 2015-12-23 | 江苏大学 | A kind of borax replaces ferro-boron to carry out the boron micro-alloyed method of steel |
| CN103436656A (en) * | 2013-08-26 | 2013-12-11 | 江苏大学 | Method for carrying out boron microalloying on steel by using borax instead of ferroboron |
| CN103993224A (en) * | 2014-04-23 | 2014-08-20 | 中建材宁国新马耐磨材料有限公司 | Medium-manganese steel crusher hammerhead and making method thereof |
| CN104120369B (en) * | 2014-07-11 | 2016-08-24 | 安徽省三方新材料科技有限公司 | A kind of tup for hammer mill |
| CN104120369A (en) * | 2014-07-11 | 2014-10-29 | 安徽省三方耐磨股份有限公司 | A hammerhead used for a hammer crusher |
| CN104278213A (en) * | 2014-07-22 | 2015-01-14 | 安徽省三方耐磨股份有限公司 | Boron-containing ultrahigh-manganese steel |
| CN104258922A (en) * | 2014-07-24 | 2015-01-07 | 宁国市开源电力耐磨材料有限公司 | High-chromium alloy wear-resistant lining board for jaw crusher |
| CN104164624A (en) * | 2014-07-24 | 2014-11-26 | 宁国市开源电力耐磨材料有限公司 | High-manganese steel liner plate for bowl mill |
| CN104258922B (en) * | 2014-07-24 | 2016-09-07 | 宁国市开源电力耐磨材料有限公司 | A kind of jaw crusher high-chromium alloy abrasion-proof backing block |
| CN105316586A (en) * | 2015-10-28 | 2016-02-10 | 安徽省三方新材料科技有限公司 | High manganese steel lining plate for hard rock crusher and preparing method for high manganese steel lining plate |
| CN107794412A (en) * | 2016-08-29 | 2018-03-13 | 宁波高新区力红新材料科技有限公司 | A kind of aluminium alloy and casting method |
| CN107058859A (en) * | 2016-08-30 | 2017-08-18 | 刘海永 | A kind of composite micro-alloyed alloy of the rare earth made of steel slags and its application |
| CN107130163A (en) * | 2017-04-27 | 2017-09-05 | 东北大学 | A kind of method that utilization pig iron containing boron improves Q235 steel yield strengths |
| CN108531730A (en) * | 2018-04-10 | 2018-09-14 | 抚顺特殊钢股份有限公司 | The vacuum induction furnace smelting technique of lanthanum element recovery rate in a kind of raising high temperature alloy |
| CN109023155A (en) * | 2018-07-26 | 2018-12-18 | 含山县兴达球墨铸铁厂 | A kind of ball mill wear-resistant high-ductility liner plate |
| CN109487178A (en) * | 2018-12-29 | 2019-03-19 | 广西长城机械股份有限公司 | High-purity ultra-high manganese steel and its preparation process |
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