CN103667945B - A kind of Wear-resistant high-manganese steel liner plate material and preparation method thereof - Google Patents
A kind of Wear-resistant high-manganese steel liner plate material and preparation method thereof Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 18
- 229910000617 Mangalloy Inorganic materials 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000007670 refining Methods 0.000 claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 9
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims abstract description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 8
- 239000011651 chromium Substances 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052729 chemical element Inorganic materials 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 239000010703 silicon Substances 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 239000010936 titanium Substances 0.000 claims abstract description 6
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000004411 aluminium Substances 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 239000011572 manganese Substances 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 239000011733 molybdenum Substances 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 18
- 238000005275 alloying Methods 0.000 claims description 12
- 238000005266 casting Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 8
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 6
- 229910000805 Pig iron Inorganic materials 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 239000012467 final product Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 3
- 229910001634 calcium fluoride Inorganic materials 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 3
- 238000006477 desulfuration reaction Methods 0.000 claims description 3
- 230000023556 desulfurization Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 3
- NPUJHQNGUMWIMV-UHFFFAOYSA-L dicalcium pentamagnesium [dioxido-[oxo(trioxidosilyloxy)silyl]oxysilyl]oxy-[[dioxido-[oxo(trioxidosilyloxy)silyl]oxysilyl]oxy-oxosilyl]oxy-dioxidosilane dihydroxide Chemical compound [OH-].[OH-].[Mg++].[Mg++].[Mg++].[Mg++].[Mg++].[Ca++].[Ca++].[O-][Si]([O-])([O-])O[Si](=O)O[Si]([O-])([O-])O[Si](=O)O[Si]([O-])([O-])O[Si]([O-])([O-])O[Si](=O)O[Si]([O-])([O-])[O-] NPUJHQNGUMWIMV-UHFFFAOYSA-L 0.000 claims description 3
- 239000010433 feldspar Substances 0.000 claims description 3
- 239000010977 jade Substances 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 3
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 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 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 3
- 239000005543 nano-size silicon particle Substances 0.000 claims description 3
- 229910021392 nanocarbon Inorganic materials 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 229910000077 silane Inorganic materials 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229910000851 Alloy steel Inorganic materials 0.000 abstract description 6
- 239000011148 porous material Substances 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910001037 White iron Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Treatment Of Steel In Its Molten State (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
A kind of Wear-resistant high-manganese steel liner plate material, the chemical element composition that it contains and mass percent thereof are: carbon 1.2-1.4, silicon 1.3-1.5, manganese 9.2-10.4, titanium 1.1-1.3, chromium 0.9-1.3, molybdenum 0.02-0.04, aluminium 0.1-0.2, lanthanum 0.02-0.04, Nd0.04-0.07, S≤0.04, P≤0.04, surplus are iron.Steel alloy of the present invention adds the elements such as lanthanum, Nd, titanium on the basis of high carbon and high manganese steel, the steel alloy obtained not only has high hardness, excellent wear resistance, but also there is good toughness, advantage that plasticity is good, and more excellent than common high mangaenese steel performance, be suitable as the lining material that wearing and tearing are large.Refining agent of the present invention is used for Foundry Production, and the degree of porosity in foundry goods reduces 1-2 degree, and can not produce pore at cast(ing) surface, trapped oxide also obviously reduces, and oxide inclusion is at about 2 grades.
Description
Technical field
The present invention relates to metal material field, particularly relate to a kind of Wear-resistant high-manganese steel liner plate material and preparation method thereof.
Background technology
Lining material, through the development of more than 30 years, experienced by high violent steel, common spoken parts in traditional operas cast steel, ni-hard cast iron, high chromium white iron to the developmental stage of the middle-low alloy steel of modified high manganese steel and various Q-tempering technique.In practical application domestic at present, be still that high mangaenese steel rules all the land, in several main flow material, high mangaenese steel good toughness, but wear resistance and erosion resistance are also undesirable; Wear resistance of high-chromium iron is good, but toughness is poor again; Middle-low alloy steel fragility and erosion resistance are not up to standard.Need, from the more excellent lining material of the aspect such as starting material, technique research and development over-all properties, to enhance productivity, to reduce wear, reduce costs.
Summary of the invention
The object of the present invention is to provide a kind of Wear-resistant high-manganese steel liner plate material and preparation method thereof, it is high that this alloy material has intensity, good, the impact-resistant advantage of wear resistance.
Technical scheme of the present invention is as follows:
A kind of Wear-resistant high-manganese steel liner plate material, is characterized in that: the chemical element composition that it contains and mass percent thereof are: carbon 1.2-1.4, silicon 1.3-1.5, manganese 9.2-10.4, titanium 1.1-1.3, chromium 0.9-1.3, molybdenum 0.02-0.04, aluminium 0.1-0.2, lanthanum 0.02-0.04, Nd0.04-0.07, S≤0.04, P≤0.04, surplus are iron.
The production method of described Wear-resistant high-manganese steel liner plate material, is characterized in that:
(1), the preparation pig iron and scrap iron are originated as ferrous substrate in 1:1-2 ratio, the pig iron is added drop in stove and melt, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying constituent and carry out alloying, then add scrap iron fusing, add refining agent secondary refining, detection adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) lot sequence, dropping into alloying element in alloying process in stove is: (1) chromium, silicon; (2) manganese, lanthanum, Nd; (3) other remaining components; The each batch of timed interval of dropping into element is 23-26 minute, stirs after feeding intake.
Described casting postheat treatment is: first by room temperature with 200-220 DEG C/h of ramp to 500-510 DEG C, insulation 60-70 minute, again with 200-220 DEG C/h of ramp to 700-710 DEG C, 560-590 DEG C is cooled to again with 190-200 DEG C/h of speed, again with 230-250 DEG C/h of ramp to 940-950 DEG C, insulation 3-4 hour; 600-610 DEG C is cooled to again with 180-190 DEG C/h of speed, then with 200-220 DEG C/h of ramp to 700-710 DEG C, then be cooled to 480-500 DEG C with 180-190 DEG C/h of speed, insulation 70-80 minute; 220-230 DEG C is cooled to again, insulation 2-3 hour with 170-180 DEG C/h of speed; Again with 200-220 DEG C/h of ramp to 330-350 DEG C, then be cooled to 200-210 DEG C with 160-170 DEG C/h of speed, then with 180-190 DEG C/h of ramp to 530-550 DEG C, insulation 2-3 hour, takes out air cooling and get final product.
Described refining agent is made up of the raw material of following weight part: instrument comminuted steel shot 30-40, medical stone 1-2, Calcium Fluoride (Fluorspan) 3-4, magnesium oxide 6-7, iron(ic) chloride 1-2, feldspar in powder 2-3, Tremoliteor Tremoliteasbestos 5-6, magnesium sulfate 2-3, nano silicon 2-3, jade powder 3-4, montmorillonite 1-2, potassium silicofluoride 4-5; Each raw material mixes by preparation method, is heated to molten state, then, is poured into Quench in pure water, then is ground into 100-200 order powder; Gained powder is added and is equivalent to the silane resin acceptor kh-550 of powder weight 2-3%, the nano-carbon powder of 1-2%, after mixing, under 8-15Mpa, be pressed into base, then, at 900-950 DEG C, 3-4 hour is calcined, after cooling, be ground into 150-250 order powder again, obtain final product.
Beneficial effect of the present invention
Steel alloy of the present invention adds the elements such as lanthanum, Nd, titanium on the basis of high carbon and high manganese steel, the steel alloy obtained not only has high hardness, excellent wear resistance, but also there is good toughness, advantage that plasticity is good, and more excellent than common high mangaenese steel performance, be suitable as the lining material that wearing and tearing are large.The present invention uses part scrap iron as raw material, and through secondary refining, conservative control casting postheat treatment temperature, throwing raw materials in batches, makes alloy quality more stable uniform, improves comprehensive mechanical property.Refining agent of the present invention is used for Foundry Production, significantly improves yield rate, and the degree of porosity particularly in foundry goods reduces 1-2 degree, and can not produce pore at cast(ing) surface, trapped oxide also obviously reduces, and oxide inclusion is at about 2 grades.
Embodiment
A kind of Wear-resistant high-manganese steel liner plate material, the chemical element composition that it contains and mass percent thereof are: carbon 1.2-1.4, silicon 1.3-1.5, manganese 9.2-10.4, titanium 1.1-1.3, chromium 0.9-1.3, molybdenum 0.02-0.04, aluminium 0.1-0.2, lanthanum 0.02-0.04, Nd0.04-0.07, S≤0.04, P≤0.04, surplus are iron.
The production method of described Wear-resistant high-manganese steel liner plate material is as follows:
(1), the preparation pig iron and scrap iron are originated as ferrous substrate in 1:1.5 ratio, the pig iron is added drop in stove and melt, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying constituent and carry out alloying, then add scrap iron fusing, add refining agent secondary refining, detection adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) lot sequence, dropping into alloying element in alloying process in stove is: (1) chromium, silicon; (2) manganese, lanthanum, Nd; (3) other remaining components; The each batch of timed interval of dropping into element is 25 minutes, stirs after feeding intake.
Described casting postheat treatment is: first by room temperature with 210 DEG C/h of ramp to 505 DEG C, be incubated 65 minutes, then with 210 DEG C/h of ramp to 705 DEG C, then be cooled to 570 DEG C with 195 DEG C/h of speed, again with 240 DEG C/h of ramp to 945 DEG C, be incubated 3.6 hours; 605 DEG C are cooled to again with 185 DEG C/h of speed, then with 210 DEG C/h of ramp to 705 DEG C, then be cooled to 490 DEG C with 185 DEG C/h of speed, be incubated 75 minutes; Be cooled to 225 DEG C with 175 DEG C/h of speed again, be incubated 2.5 hours; Again with 210 DEG C/h of ramp to 340 DEG C, then be cooled to 205 DEG C with 165 DEG C/h of speed, then with 185 DEG C/h of ramp to 540 DEG C, be incubated 2.5 hours, take out air cooling and get final product.
Described refining agent is made up of the raw material of following weight part (kilogram): instrument comminuted steel shot 35, medical stone 1.5, Calcium Fluoride (Fluorspan) 3.5, magnesium oxide 6.5, iron(ic) chloride 1.5, feldspar in powder 2.5, Tremoliteor Tremoliteasbestos 5.5, magnesium sulfate 2.5, nano silicon 2.5, jade powder 3.5, montmorillonite 1.5, potassium silicofluoride 4.5; Each raw material mixes by preparation method, is heated to molten state, then, is poured into Quench in pure water, then is ground into 150 order powder; Gained powder is added and is equivalent to the silane resin acceptor kh-550 of powder weight 2.6%, the nano-carbon powder of 1.5%, after mixing, under 11Mpa, be pressed into base, then, calcine 3.6 hours at 940 DEG C, after cooling, then be ground into 190 order powder, obtain final product.
The mechanical property of Wear-resistant high-manganese steel liner plate material of the present invention is: tensile strength 1267MPa, yield strength 904MPa, unit elongation 14.5%, relative reduction in area 31%, impact absorbing energy 52J, impelling strength 63J/cm2, hardness 283HB.
Claims (1)
1. a production method for Wear-resistant high-manganese steel liner plate material, is characterized in that: the chemical element composition that Wear-resistant high-manganese steel liner plate material contains and mass percent thereof are: carbon 1.2-1.4, silicon 1.3-1.5, manganese 9.2-10.4, titanium 1.1-1.3, chromium 0.9-1.3, molybdenum 0.02-0.04, aluminium 0.1-0.2, lanthanum 0.02-0.04, Nd0.04-0.07, S≤0.04, P≤0.04, surplus are iron;
The production method of described Wear-resistant high-manganese steel liner plate material comprises following step: (1), the preparation pig iron and scrap iron are originated as ferrous substrate in 1:1-2 ratio, the pig iron is added drop in stove and melt, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying constituent carry out alloying, then add scrap iron fusing, add refining agent secondary refining, detection and adjust chemical element component content to qualified, casting, casting postheat treatment; (2) lot sequence, dropping into alloying element in alloying process in stove is: (1) chromium, silicon; (2) manganese, lanthanum, Nd; (3) other remaining components; The each batch of timed interval of dropping into element is 23-26 minute, stirs after feeding intake;
Described casting postheat treatment is: first by room temperature with 200-220 DEG C/h of ramp to 500-510 DEG C, insulation 60-70 minute, again with 200-220 DEG C/h of ramp to 700-710 DEG C, 560-590 DEG C is cooled to again with 190-200 DEG C/h of speed, again with 230-250 DEG C/h of ramp to 940-950 DEG C, insulation 3-4 hour; 600-610 DEG C is cooled to again with 180-190 DEG C/h of speed, then with 200-220 DEG C/h of ramp to 700-710 DEG C, then be cooled to 480-500 DEG C with 180-190 DEG C/h of speed, insulation 70-80 minute; 220-230 DEG C is cooled to again, insulation 2-3 hour with 170-180 DEG C/h of speed; Again with 200-220 DEG C/h of ramp to 330-350 DEG C, then be cooled to 200-210 DEG C with 160-170 DEG C/h of speed, then with 180-190 DEG C/h of ramp to 530-550 DEG C, insulation 2-3 hour, takes out air cooling and get final product;
Described refining agent is made up of the raw material of following weight part: instrument comminuted steel shot 30-40, medical stone 1-2, Calcium Fluoride (Fluorspan) 3-4, magnesium oxide 6-7, iron(ic) chloride 1-2, feldspar in powder 2-3, Tremoliteor Tremoliteasbestos 5-6, magnesium sulfate 2-3, nano silicon 2-3, jade powder 3-4, montmorillonite 1-2, potassium silicofluoride 4-5; Each raw material mixes by preparation method, is heated to molten state, then, is poured into Quench in pure water, then is ground into 100-200 order powder; Gained powder is added and is equivalent to the silane resin acceptor kh-550 of powder weight 2-3%, the nano-carbon powder of 1-2%, after mixing, under 8-15MPa, be pressed into base, then, at 900-950 DEG C, 3-4 hour is calcined, after cooling, be ground into 150-250 order powder again, obtain final product.
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