CN103614656A - High-vanadium alloy steel material used for bearings and preparation method thereof - Google Patents
High-vanadium alloy steel material used for bearings and preparation method thereof Download PDFInfo
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- CN103614656A CN103614656A CN201310506138.4A CN201310506138A CN103614656A CN 103614656 A CN103614656 A CN 103614656A CN 201310506138 A CN201310506138 A CN 201310506138A CN 103614656 A CN103614656 A CN 103614656A
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- 239000000463 material Substances 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 5
- 239000010959 steel Substances 0.000 title claims abstract description 5
- 238000002360 preparation method Methods 0.000 title claims description 8
- 229910000756 V alloy Inorganic materials 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910000851 Alloy steel Inorganic materials 0.000 claims abstract description 18
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 18
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000007670 refining Methods 0.000 claims abstract description 17
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052742 iron Inorganic materials 0.000 claims abstract description 12
- 238000005266 casting Methods 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052729 chemical element Inorganic materials 0.000 claims abstract description 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 239000011651 chromium Substances 0.000 claims abstract description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 7
- 239000011733 molybdenum Substances 0.000 claims abstract description 7
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 7
- 239000010955 niobium Substances 0.000 claims abstract description 7
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 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 4
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 18
- 238000010792 warming Methods 0.000 claims description 18
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 12
- 238000005275 alloying Methods 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229910000805 Pig iron Inorganic materials 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 6
- 239000011572 manganese Substances 0.000 claims description 6
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 6
- 239000001996 bearing alloy Substances 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 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
- 229910000514 dolomite Inorganic materials 0.000 claims description 3
- 239000010459 dolomite Substances 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 239000010977 jade Substances 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 3
- 229910021392 nanocarbon 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
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229940001516 sodium nitrate Drugs 0.000 claims description 3
- 235000010344 sodium nitrate Nutrition 0.000 claims description 3
- 239000004317 sodium nitrate Substances 0.000 claims description 3
- 238000003756 stirring Methods 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
- 239000011787 zinc oxide Substances 0.000 claims description 3
- OMQSJNWFFJOIMO-UHFFFAOYSA-J zirconium tetrafluoride Chemical compound F[Zr](F)(F)F OMQSJNWFFJOIMO-UHFFFAOYSA-J 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 239000000956 alloy Substances 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 2
- 229910052769 Ytterbium Inorganic materials 0.000 abstract 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 abstract 1
- 238000007669 thermal treatment Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses a high-vanadium alloy steel material used for bearings. The alloy steel material comprises following chemical elements by weight: 2.0-2.3% of carbon, 0.2-0.3% of silicon, 0.9-1.4% of manganese, 2.7-3.1% of chromium, 2.2-2.4% of molybdenum, 0.7-0.9% of nickel, 0.2-0.3% of niobium, 3-4% of vanadium, 0.04-0.07% of Yb, S not more than 0.04% and P not more than 0.04%, with the balance being iron. An alloy produced has characteristics of high strength, high hardness, compact resistance, corrosion resistance, wear resistance and high hot strength by utilization of the vanadium, the rare earth elements, etc., and by adding the raw materials in batches and reasonably controlling the thermal treatment temperature after casting. A portion of waste iron is used as a raw material of the alloy steel material and a secondary refining process is performed so that the quality of the alloy steel material is stable and uniform. The alloy steel material is suitable for pump truck bearings, and other parts, and has long service lifetime.
Description
Technical field
The present invention relates to metallic substance preparation field, relate in particular to a kind of high vanadium bearing alloy steel material and preparation method thereof.
Background technology
The environment of pump valve work is various, badly, very high to the requirement of material, the steel alloy that pump valve is used at present has varied, technology has very much progress, but still have a lot of problems to exist, as wear resistance, hardness, rustless property, corrosion resistance nature, high and low temperature resistance, fragility, toughness etc., in a lot of occasions, can't meet the requirement of production, also require further improvement, to enhance productivity, reduce costs, improve security, for high-quality precision and sophisticated technology development provides safeguard, for social development provides power, task is also very arduous.
Summary of the invention
The object of the present invention is to provide alloy steel material and preparation method thereof for a kind of high vanadium bearing, this alloy material has that hardness is high, wear resistance good, antifatigue, corrosion resistant advantage.
Technical scheme of the present invention is as follows:
A high vanadium bearing alloy steel material, is characterized in that: chemical element composition and mass percent thereof that it contains are: carbon 2.0-2.3, silicon 0.2-0.3, manganese 0.9-1.4, chromium 2.7-3.1, molybdenum 2.2-2.4, nickel 0.7-0.9, niobium 0.2-0.4, vanadium 3-4, Yb0.04-0.07, S≤0.04, P≤0.04, surplus are iron.
The production method of alloy steel material for described high vanadium bearing, is characterized in that:
(1), preparing the pig iron and scrap iron originates as ferrous substrate in 1:1-2 ratio, the pig iron is added to 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 and adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove, be: (1) silicon, manganese; (2) nickel, molybdenum; (3) chromium, niobium; (4) other remaining components; The timed interval that each batch drops into element is 20-25 minute, after feeding intake, stirs.
Described casting postheat treatment is: first by room temperature, with 170-180 ℃/h of speed, be warming up to 500-510 ℃, with 160-170 ℃/h of speed, be cooled to 400-410 ℃ again, with 170-180 ℃/h of speed, be warming up to 650-660 ℃ again, insulation 60-70 minute, with 170-180 ℃/h of speed, be warming up to 930-945 ℃ again, insulation 3-4 hour; With 160-170 ℃/h of speed, be cooled to 600-610 ℃ again, then be warming up to 710-730 ℃ with 170-180 ℃/h of speed, then be cooled to 500-510 ℃ with 160-170 ℃/h of speed, insulation 60-80 minute; With 160-170 ℃/h of speed, be cooled to 200-220 ℃ again, insulation 2-3 hour; With 170-180 ℃/h of speed, be warming up to 300-310 ℃ again, insulation 40-60 minute, then be warming up to 540-550 ℃ with 170-180 ℃/h of speed, insulation 2-3 hour, takes out air cooling and get final product.
Described refining agent is made by the raw material of following weight part: instrument comminuted steel shot 3-4, zinc oxide 1-2, aluminium powder 1-2, SODIUMNITRATE 3-5, ground dolomite 3-4, kaolin 2-3, Zirconium tetrafluoride 1-2, jade powder 3-4, montmorillonite 1-2, Sodium Silicofluoride 2-3; Preparation method mixes each raw material, 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 ℃, calcine 3-4 hour, cooling after, be ground into again 150-250 order powder, obtain.
Beneficial effect of the present invention
The present invention is by using the elements such as vanadium, rare earth element, then through gradation throwing raw materials, postheat treatment temperature is cast in rationally control, and the alloy of formation has high strength, high rigidity, shock-resistant, corrosion-resistant, wear-resisting, the strong high feature of heat; Use part scrap iron as raw material, and through secondary refining, make more stable uniform of quality.Steel alloy of the present invention is applicable to the parts such as pump truck bearing, long service life.Refining agent of the present invention is for Foundry Production, and the degree of porosity obviously improving in yield rate, particularly foundry goods reduces 1-2 degree, can not produce pore at cast(ing) surface, and trapped oxide also obviously reduces, and oxide inclusion is 2 grades of left and right.
Embodiment
A high vanadium bearing alloy steel material, chemical element composition and mass percent thereof that it contains are: carbon 2.0-2.3, silicon 0.2-0.3, manganese 0.9-1.4, chromium 2.7-3.1, molybdenum 2.2-2.4, nickel 0.7-0.9, niobium 0.2-0.4, vanadium 3-4, Yb0.04-0.07, S≤0.04, P≤0.04, surplus are iron.
Described high vanadium bearing by the production method of alloy steel material is:
(1), preparing the pig iron and scrap iron originates as ferrous substrate in 1:1.5 ratio, the pig iron is added to 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 and adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove, be: (1) silicon, manganese; (2) nickel, molybdenum; (3) chromium, niobium; (4) other remaining components; The timed interval that each batch drops into element is 23 minutes, after feeding intake, stirs.
Described casting postheat treatment is: first by room temperature, with 175 ℃/h of speed, be warming up to 505 ℃, with 165 ℃/h of speed, be cooled to 405 ℃ again, then be warming up to 655 ℃ with 175 ℃/h of speed, be incubated 65 minutes, with 175 ℃/h of speed, be warming up to 935 ℃ again, be incubated 3.5 hours; With 165 ℃/h of speed, be cooled to 605 ℃ again, then be warming up to 720 ℃ with 175 ℃/h of speed, then be cooled to 505 ℃ with 165 ℃/h of speed, be incubated 70 minutes; With 165 ℃/h of speed, be cooled to 210 ℃ again, be incubated 2.5 hours; With 175 ℃/h of speed, be warming up to 305 ℃ again, be incubated 50 minutes, then be warming up to 545 ℃ with 175 ℃/h of speed, be incubated 2.5 hours, take out air cooling and get final product.
Described refining agent by following weight part (kilogram) raw material make: instrument comminuted steel shot 3.5, zinc oxide 1.5, aluminium powder 1.5, SODIUMNITRATE 4, ground dolomite 3.5, kaolin 2.5 Zirconium tetrafluorides 1.5, jade powder 3.5, montmorillonite 1.5, Sodium Silicofluoride 2.5; Preparation method mixes each raw material, 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 2.5%, 1.5% nano-carbon powder, after mixing, under 11Mpa, be pressed into base, then, at 930 ℃, calcine 3.5 hours, cooling after, then be ground into 200 order powder, obtain.
The high vanadium bearing of the present invention by the mechanical property of alloy steel material is: tensile strength 1341MPa, yield strength 974MPa, unit elongation 12.1%, relative reduction in area 21%, impact absorbing energy 54J, impelling strength 60J/cm2, hardness 297HB.
Claims (4)
1. a high vanadium bearing alloy steel material, is characterized in that: chemical element composition and mass percent thereof that it contains are: carbon 2.0-2.3, silicon 0.2-0.3, manganese 0.9-1.4, chromium 2.7-3.1, molybdenum 2.2-2.4, nickel 0.7-0.9, niobium 0.2-0.4, vanadium 3-4, Yb0.04-0.07, S≤0.04, P≤0.04, surplus are iron.
2. the production method of alloy steel material for high vanadium bearing according to claim 1, is characterized in that:
(1), preparing the pig iron and scrap iron originates as ferrous substrate in 1:1-2 ratio, the pig iron is added to 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 and adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove, be: (1) silicon, manganese; (2) nickel, molybdenum; (3) chromium, niobium; (4) other remaining components; The timed interval that each batch drops into element is 20-25 minute, after feeding intake, stirs.
3. the production method of alloy steel material for high vanadium bearing according to claim 2, it is characterized in that: described casting postheat treatment is: first by room temperature, with 170-180 ℃/h of speed, be warming up to 500-510 ℃, with 160-170 ℃/h of speed, be cooled to 400-410 ℃ again, with 170-180 ℃/h of speed, be warming up to 650-660 ℃ again, insulation 60-70 minute, with 170-180 ℃/h of speed, be warming up to 930-945 ℃ again, insulation 3-4 hour; With 160-170 ℃/h of speed, be cooled to 600-610 ℃ again, then be warming up to 710-730 ℃ with 170-180 ℃/h of speed, then be cooled to 500-510 ℃ with 160-170 ℃/h of speed, insulation 60-80 minute; With 160-170 ℃/h of speed, be cooled to 200-220 ℃ again, insulation 2-3 hour; With 170-180 ℃/h of speed, be warming up to 300-310 ℃ again, insulation 40-60 minute, then be warming up to 540-550 ℃ with 170-180 ℃/h of speed, insulation 2-3 hour, takes out air cooling and get final product.
4. the production method of alloy steel material for high vanadium bearing according to claim 2, is characterized in that: instrument comminuted steel shot 3-4, zinc oxide 1-2, aluminium powder 1-2, SODIUMNITRATE 3-5, ground dolomite 3-4, kaolin 2-3, Zirconium tetrafluoride 1-2, jade powder 3-4, montmorillonite 1-2, Sodium Silicofluoride 2-3; Preparation method mixes each raw material, 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 ℃, calcine 3-4 hour, cooling after, be ground into again 150-250 order powder, obtain.
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| CN201310506138.4A CN103614656A (en) | 2013-10-24 | 2013-10-24 | High-vanadium alloy steel material used for bearings and preparation method thereof |
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| CN201310506138.4A CN103614656A (en) | 2013-10-24 | 2013-10-24 | High-vanadium alloy steel material used for bearings and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213046A (en) * | 2014-08-05 | 2014-12-17 | 安徽荣达阀门有限公司 | Steel material for hydraulic valve and preparing method of steel material |
| CN104550931A (en) * | 2014-12-25 | 2015-04-29 | 铜陵市经纬流体科技有限公司 | Scattering particle reinforced iron-based powder metallurgical valve and preparation method thereof |
| CN104588640A (en) * | 2014-12-25 | 2015-05-06 | 铜陵市经纬流体科技有限公司 | High-hardness ferrum-based powder metallurgy material for valve and preparing method thereof |
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| CN104550931A (en) * | 2014-12-25 | 2015-04-29 | 铜陵市经纬流体科技有限公司 | Scattering particle reinforced iron-based powder metallurgical valve and preparation method thereof |
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Application publication date: 20140305 |