CN101117686A - Mabei wear-resistant steel - Google Patents
Mabei wear-resistant steel Download PDFInfo
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- CN101117686A CN101117686A CNA2007101311987A CN200710131198A CN101117686A CN 101117686 A CN101117686 A CN 101117686A CN A2007101311987 A CNA2007101311987 A CN A2007101311987A CN 200710131198 A CN200710131198 A CN 200710131198A CN 101117686 A CN101117686 A CN 101117686A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 46
- 239000010959 steel Substances 0.000 title claims abstract description 46
- 238000005266 casting Methods 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 19
- 229910001566 austenite Inorganic materials 0.000 claims description 11
- 239000004411 aluminium Substances 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 235000015170 shellfish Nutrition 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 229910000604 Ferrochrome Inorganic materials 0.000 claims description 5
- 108010038629 Molybdoferredoxin Proteins 0.000 claims description 5
- 229910000805 Pig iron Inorganic materials 0.000 claims description 5
- HBELESVMOSDEOV-UHFFFAOYSA-N [Fe].[Mo] Chemical compound [Fe].[Mo] HBELESVMOSDEOV-UHFFFAOYSA-N 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 5
- 238000006392 deoxygenation reaction Methods 0.000 claims description 5
- 238000010079 rubber tapping Methods 0.000 claims description 5
- 238000005070 sampling Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 12
- 229910001563 bainite Inorganic materials 0.000 abstract description 10
- 238000001816 cooling Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 229910000734 martensite Inorganic materials 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000011572 manganese Substances 0.000 description 13
- 239000011651 chromium Substances 0.000 description 11
- 230000009466 transformation Effects 0.000 description 7
- 239000004615 ingredient Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000005728 strengthening Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010451 perlite Substances 0.000 description 3
- 235000019362 perlite Nutrition 0.000 description 3
- 238000007669 thermal treatment Methods 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 210000003254 palate Anatomy 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses a martensite wear-resistant steel which comprises the following components in percentage by weight: c: 0.25 to 0.55, Si: 0.3 to 1.2, Mn: 1.5-3.0, Cr: 0.8 to 2.5, MO: 1.5 to 3.0, Ni: 0.3-1.0, P, S is less than or equal to 0.06, and the balance is Fe and inevitable impurities. The casting cast by the material can obtain a martensite structure with higher hardness and a bainite structure with better comprehensive performance under the air cooling of the cast state, so that the casting has higher strength and good wear resistance, and has the advantages of simple manufacturing process and obvious economic benefit.
Description
Technical field
The present invention relates to have higher hardness and flexible wear resisting steel under a kind of as cast condition, especially a kind of horse shellfish wear resisting steel.
Background technology
Along with the fast development of Chinese national economy, the annual metal wear resistant material that consumes of industries such as mine, electric power, cement, engineering machinery is about more than 3,000,000 tons.At present, Chang Yong high-abrasive material mainly is cast iron class and wear resisting steel series.In wear resisting steel series, it can be divided into high mangaenese steel and high, medium and low carbon alloy steel class.
Impelling strength height (a of high mangaenese steel
K=147) J/cm
2), but its wear resistance only impacts under the operating mode the people and could realize by work hardening, hour is not enough to make high mangaenese steel to produce to add sclerosis and impact, so easily be worn.Wear-resisting alloy steel is that domestic and international basis purposes and resource situation separately grows up over nearly 20 years, its over-all properties is better, generally be applied under the operating mode that medium impact requires certain wear resistance again, and production cost is not high, can satisfy different working condition requirements by adjusting composition and thermal treatment process.
At present, the development of wear-resisting alloy steel and application, major part is to obtain high rigidity by thermal treatment, high tenacity and high-wearing feature, be to disclose a kind of low-alloy wear-resistant steel by document in 95103150 the Chinese invention patent as the patent No., its concrete chemical ingredients is C:0.25～0.50,) Si:1.0～1.5, Mn:1.5～1.9, Cr:1.0～1.40, Mo:0.2～0.4, V:0.05～0.10, B:0.001～0.003, Re:0.02～0.05, P≤0.04, S≤0.04, all the other are Fe, this material is mainly used in the mine, coal, the wear-resisting consumable accessory that industrial circles such as building materials are used, as shell liner, aside-liner etc., but must just can make hardness reach HRC50, a by thermal treatment
KBe 58J/cm2, be organized as a small amount of bainite B+ of tempered martensite M+ small portion of residual austenite,, prolonged the production cycle, improved production cost owing to increased heat treatment step one.The document of the patent No. 98100966 discloses a kind of cast wear-resistant steel of thermal power generation station-service, and its concrete chemical ingredients is C:0.30～0.45, Si:1.5～2.5, Mn:1.5～2.5, Cr:1.0～2.0, Mo:1.0～3.0, Ni:0.3～1.0, P, S≤0.04, Mg:0.01～0.06, Ca:0.01～0.06, Re:0.01～0.06, Zr:0.01～0.05, Nb:0.01～0.1, Ta:0.01～0.05, all the other are iron.In the embodiment of this material, though foundry goods just can use, must imbed slow cooling in the sand at 300～350 ℃ at 900～950 ℃ of shake out air coolings under as cast condition, increased working strength of workers, operating process is wasted time and energy.Because temperature is wayward, actually operating is difficult in the factory.In addition, new added elements kind is too much, in the production melting wayward, and cost is higher.
Summary of the invention
The purpose of this invention is to provide a kind of horse shellfish wear resisting steel, as cast condition undertissue is martensite, bainite, has higher wear resistance and impelling strength, does not need just can directly put into production use through Overheating Treatment under as cast condition.
Technical scheme of the present invention is: a kind of horse shellfish wear resisting steel, and the per-cent of its composition and weight is as follows: C:0.25～0.55, Si:0.3～1.2, Mn:1.5～3.0, Cr:0.8～2.5, MO:1.5～3.0, Ni:0.3～1.0, P, S≤0.06, all the other are Fe and unavoidable impurities.
The chemical ingredients limited range of horse shellfish wear resisting steel of the present invention be the reasons are as follows:
(1) C: the fundamental element in the steel, bigger to the hardness influence of steel, for guaranteeing to obtain higher hardness, improve wear resistance, the carbon content scope is fixed between 0.25～0.50%, with the increase of C content, hardness increases in this scope, and toughness also increases accordingly.
(2) Mn: reduce critical cooling velocity, significantly postpone austenite, improve hardening capacity greatly: in the low levels scope, steel is had very people's strengthening effect, can improve intensity, hardness and wear resistance, and have the solution strengthening effect to perlitic transformation; Perlite is separated with the bainite transformation zone, and when too high as if content, it is too many that the Ms point is descended, remained austenite content increases during room temperature, in order under as cast condition, just to obtain martensite, bainite,, its content range is decided to be 1.5～3.0% in the present invention through test of many times.
(3) si: reduce critical cooling velocity, but littler to the raising influence of hardening capacity than manganese, chromium; But silicon energy reinforced ferrite when its content is suitable, makes steel have good comprehensive performances, silicon is contained star for this reason and is controlled at 0.3～1.2%.
(4) Cr: reduce critical cooling velocity, improve the hardening capacity of steel, and perlite is separated with the bainite transformation zone, in the low-alloy scope, steel is had very big strengthening effect, Cr not only postpones austenite to perlitic transformation.And in conjunction with forming carbide, improve intensity, hardness and wear resistance with the C in the body, but because it is more rare resource, and add-on is few than Mn content, its content range is decided to be 0.8～2.5%.
(5) MO: reduce critical cooling velocity, improve the hardening capacity of steel; And can significantly postpone austenite to perlitic transformation, and perlite is separated with the bainite transformation curve, but to the bainite transformation curve move to right the influence less, easily obtain bainite structure during cooling: and can solution strengthening strengthen matrix, improve high-temperature behavior, so selected key content is 0.4～1.2%.
(6) Ni: reduce critical cooling velocity, impel steel to generate martensite, have the solution strengthening effect; Improve the intensity of steel, and do not reduce the plasticity of steel; Because the expensive raw material price of nickel, and if too high levels increases remained austenite content, so its content range is decided to be 0.3～1.0%.
(7) P: during P content higher (〉=0.1%), form Fe in the steel
2P separates out around crystal grain, reduces the plasticity and the toughness of steel, so its content is low more good more, be generally≤0.06%.
(8) S: be present in around the crystal grain of steel with the FeS-Fe eutectic in steel, reduce the mechanical property of steel, its content also should be low more good more, be generally≤0.06%.
Preparation method of the present invention is: steel scrap is put into the fusing of stove internal heating, insert aluminium deoxidation behind the furnace charge fine melt, add ferrochrome, molybdenum-iron, nickel plate again, sampling analysis C, Mn add the pig iron, transfer C, add Mn-Fe, si-Fe, insert the aluminium final deoxygenation, the temperature of molten steel in the stove is risen to 1650～1670 ℃ of tappings, use sand mold casting, 1500～1530 ℃ of the temperature of cast, pouring crusher liner plate, every heavily about 15kg, cast, shake out after half an hour, spark-out, hardness of cast form is HRC=45～50 after testing, a
k〉=33J/cm
2, metallographic structure is the M+B+ residual austenite.
Advantage of the present invention is: on the basis of medium carbon alloy steel, the content that adds alloying element Mn, Cr by control improves the hardenability of material, hardening capacity and mechanical property, make the foundry goods of pouring into a mould with this material under the as cast condition air cooling, just can access higher martensitic stucture of hardness and good comprehensive properties bainite structure, make foundry goods have higher intensity and good wear resistance, it is simple to possess manufacturing process, and economic benefit is advantage significantly.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1 usefulness intermediate frequency furnace (150kg) melting, chemical ingredients (weight percent) is as follows:
C:0.38, Si:0.9, Mn:1.8, Cr:1.2, MO:0.8, Ni:0.3, P, S≤0.06, all the other are Fe and unavoidable impurities.
Steel scrap is put into the fusing of stove internal heating, insert aluminium deoxidation behind the furnace charge fine melt, add ferrochrome, molybdenum-iron, nickel plate again, sampling analysis C, Mn add the pig iron, transfer C, add Mn-Fe, si-Fe, insert the aluminium final deoxygenation, the temperature of molten steel in the stove is risen to 1650～1670 ℃ of tappings, use sand mold casting, 1500～1530 ℃ of the temperature of cast, pouring crusher liner plate, every heavily about 15kg, cast, shake out after half an hour, spark-out, hardness of cast form is HRC=45～50 after testing, ak 〉=33J/cm
2, metallographic structure is the M+B+ residual austenite.
Installation examination proof, be former ZGMn13, high mangaenese steel material liner plate 2.1 times the work-ing life of the liner plate of material of the present invention.
Embodiment 2 usefulness intermediate frequency furnace (150kg) meltings, chemical ingredients (weight percent) is as follows:
C:0.50, Si:0.9, Mn:2.4, Cr:2.0, MO:0.8, Ni:0.5, P, S≤0.06, all the other are iron and unavoidable impurities, and steel scrap is put into the fusing of stove internal heating, insert aluminium deoxidation behind the furnace charge fine melt, add ferrochrome again, molybdenum-iron, the nickel plate, sampling analysis C, Mn, add the pig iron, transfer C, add Mn-Fe, si-Fe, insert the aluminium final deoxygenation, the temperature of molten steel in the stove is risen to 1650～1670 ℃ of tappings, use sand mold casting, 1500～1530 ℃ of the temperature of cast, the pouring crusher liner plate, every heavily about 10kg, cast, shake out after half an hour, spark-out, hardness of cast form is HRC=50～58 after testing, a
k=50J/cm
2, metallographic structure is the M+B+ residual austenite.
Installation examination proof, the life-span of the tup work-ing life of material of the present invention and former rich chromium cast iron material tup is suitable substantially, but cost has only its half.
Embodiment 3 usefulness intermediate frequency furnace (150kg) meltings, chemical ingredients (weight percent) is as follows:
C:0.45, Si:0.9, Mn:2.2, Cr:1.6, MO:0.8, Ni:0.5, P, S≤0.06, all the other are iron and unavoidable impurities, and steel scrap is put into the fusing of stove internal heating, insert aluminium deoxidation behind the furnace charge fine melt, add ferrochrome again, molybdenum-iron, the nickel plate, sampling analysis C, Mn, add the pig iron, transfer C, add Mn-Fe, si-Fe, insert the aluminium final deoxygenation, the temperature of molten steel in the stove is risen to 1650～1670 ℃ of tappings, use sand mold casting, 1500～1530 ℃ of the temperature of cast, the pouring crusher liner plate, every heavily about 10kg, cast, shake out after half an hour, spark-out, hardness of cast form is HRC=45～50 after testing, a
k〉=33J/cm
2, metallographic structure is the M+B+ residual austenite.
Proof is used in installation, and be 2.3 times of ZGMn13 high mangaenese steel material under the equal conditions work-ing life of the crusher palate plate that material of the present invention is done.
Claims (2)
1. horse shellfish wear resisting steel is characterized in that: its form and the per-cent of weight as follows:
C:0.25～0.55, Si:0.3～1.2, Mn:1.5～3.0, Cr:0.8～2.5, MO:1.5～3.0, Ni:0.3～1.0, P, S≤0.06, all the other are Fe and unavoidable impurities.
2. according to a kind of horse shellfish wear resisting steel of claim 1, it is characterized in that: its preparation method is: steel scrap is put into the fusing of stove internal heating, insert aluminium deoxidation behind the furnace charge fine melt, add ferrochrome, molybdenum-iron, nickel plate again, sampling analysis C, Mn, add the pig iron, transfer C, add Mn-Fe, si-Fe, insert the aluminium final deoxygenation, the temperature of molten steel in the stove is risen to 1650～1670 ℃ of tappings, use sand mold casting, 1500～1530 ℃ of the temperature of cast, pouring crusher liner plate, every heavily about 15kg, cast, shake out after half an hour, spark-out, hardness of cast form is HRC=45～50 after testing, ak 〉=33J/cm
Z, metallographic structure is the M+B+ residual austenite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101311987A CN101117686A (en) | 2007-08-24 | 2007-08-24 | Mabei wear-resistant steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101311987A CN101117686A (en) | 2007-08-24 | 2007-08-24 | Mabei wear-resistant steel |
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| Publication Number | Publication Date |
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| CN101117686A true CN101117686A (en) | 2008-02-06 |
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ID=39053944
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| CNA2007101311987A Pending CN101117686A (en) | 2007-08-24 | 2007-08-24 | Mabei wear-resistant steel |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230140A (en) * | 2010-04-28 | 2011-11-02 | 鞍钢集团矿业公司 | Novel martensitic wear resistant steel and production technology for steel casting thereof |
| CN102321852A (en) * | 2011-09-01 | 2012-01-18 | 燕山大学 | Nanostructure carbide-free bainite medium-carbon alloy steel and preparation method |
| CN103990526A (en) * | 2014-05-29 | 2014-08-20 | 顾开明 | Clamping groove end lining plate |
| CN105021532A (en) * | 2015-07-17 | 2015-11-04 | 河北钢铁股份有限公司邯郸分公司 | Method for rapid detection of X70 metallographic structure and structure content |
| CN114959498A (en) * | 2022-06-27 | 2022-08-30 | 枣庄学院 | Wear-resistant steel lining plate material for ball mill and manufacturing method thereof |
| CN115354217A (en) * | 2022-07-04 | 2022-11-18 | 钢铁研究总院有限公司 | Impact-abrasion-resistant complex-phase structure hammer head and preparation method thereof |
-
2007
- 2007-08-24 CN CNA2007101311987A patent/CN101117686A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230140A (en) * | 2010-04-28 | 2011-11-02 | 鞍钢集团矿业公司 | Novel martensitic wear resistant steel and production technology for steel casting thereof |
| CN102230140B (en) * | 2010-04-28 | 2012-11-28 | 鞍钢集团矿业公司 | Martensitic wear resistant steel production technology |
| CN102321852A (en) * | 2011-09-01 | 2012-01-18 | 燕山大学 | Nanostructure carbide-free bainite medium-carbon alloy steel and preparation method |
| CN102321852B (en) * | 2011-09-01 | 2012-10-24 | 燕山大学 | Nanostructure carbide-free bainite medium-carbon alloy steel and preparation method |
| CN103990526A (en) * | 2014-05-29 | 2014-08-20 | 顾开明 | Clamping groove end lining plate |
| CN105021532A (en) * | 2015-07-17 | 2015-11-04 | 河北钢铁股份有限公司邯郸分公司 | Method for rapid detection of X70 metallographic structure and structure content |
| CN114959498A (en) * | 2022-06-27 | 2022-08-30 | 枣庄学院 | Wear-resistant steel lining plate material for ball mill and manufacturing method thereof |
| CN115354217A (en) * | 2022-07-04 | 2022-11-18 | 钢铁研究总院有限公司 | Impact-abrasion-resistant complex-phase structure hammer head and preparation method thereof |
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