CN103667899B - A kind of alloy steel material and preparation method thereof for low temperature resistant pump valve - Google Patents
A kind of alloy steel material and preparation method thereof for low temperature resistant pump valve Download PDFInfo
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- CN103667899B CN103667899B CN201310564388.3A CN201310564388A CN103667899B CN 103667899 B CN103667899 B CN 103667899B CN 201310564388 A CN201310564388 A CN 201310564388A CN 103667899 B CN103667899 B CN 103667899B
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- 229910000851 Alloy steel Inorganic materials 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000007670 refining Methods 0.000 claims abstract description 19
- 229910052742 iron Inorganic materials 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 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
- 238000004519 manufacturing process Methods 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
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 6
- 239000010955 niobium Substances 0.000 claims abstract description 6
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 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
- 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 abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052799 carbon Inorganic materials 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
- 239000000843 powder Substances 0.000 claims description 24
- 238000010792 warming Methods 0.000 claims description 15
- 238000005275 alloying Methods 0.000 claims description 12
- 238000005266 casting Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 10
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 6
- 229910000805 Pig iron Inorganic materials 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-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
- 239000012467 final product Substances 0.000 claims description 6
- MOMKYJPSVWEWPM-UHFFFAOYSA-N 4-(chloromethyl)-2-(4-methylphenyl)-1,3-thiazole Chemical compound C1=CC(C)=CC=C1C1=NC(CCl)=CS1 MOMKYJPSVWEWPM-UHFFFAOYSA-N 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 239000005997 Calcium carbide Substances 0.000 claims description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 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
- 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
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000002156 mixing Methods 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
- 235000019983 sodium metaphosphate Nutrition 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 claims description 3
- 239000004408 titanium dioxide 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
- 239000000956 alloy Substances 0.000 abstract description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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- Silicates, Zeolites, And Molecular Sieves (AREA)
- Powder Metallurgy (AREA)
Abstract
A kind of low temperature resistant pump valve alloy steel material, chemical element composition and mass percent thereof that it contains are: carbon 0.2-0.4, silicon 1.3-1.5, manganese 3.2-3.4, vanadium 0.3-0.4, niobium 0.12-0.24, titanium 1.0-1.1, Mg0.04-0.07, S≤0.04, P≤0.04, surplus are iron. The present invention adds the elements such as titanium, manganese, niobium on the basis of middle low carbon steel, greatly reduces the cold brittleness of alloy, low temperature resistant; There is good wearability, hardness is higher, plasticity is good feature; Use part scrap iron as raw material, and through double refining, make more stable uniform of quality. Refining agent of the present invention is for Foundry Production, and the degree of porosity in foundry goods reduces 1-2 degree, and oxide inclusion is 2 grades of left and right. Steel alloy of the present invention is for pump valve, impeller, the conveyance conduit of low temperature environment operation, not fragile, long service life.
Description
Technical field
The present invention relates to metal material preparation field, relate in particular to a kind of low temperature resistant pump valve alloy steel material and preparation method thereof.
Background technology
Pump valve working environment diversity, bad, has a high requirement on the material, there are many types of pump valve using alloy steel with technology have great progress, but there are still many problems exist, such as wear resistance, hardness, rust resistance, corrosion resistance, high and low temperature resistance and brittleness, toughness, etc., on many occasions can not meet the requirements of production, also need to be further improved, in order to improve the production efficiency, reduce costs, improve security, provide guarantee for the development of advanced technology, to provide power for social development, the task is still very difficult.
Summary of the invention
The object of the present invention is to provide a kind of low temperature resistant pump valve alloy steel material and preparation method thereof, this alloy material has advantages of that wearability is good, low temperature resistant cold short.
Technical scheme of the present invention is as follows:
A kind of low temperature resistant pump valve alloy steel material, is characterized in that: chemical element composition and mass percent thereof that it contains are: carbon 0.2-0.4, silicon 1.3-1.5, manganese 3.2-3.4, vanadium 0.3-0.4, niobium 0.12-0.24, titanium 1.0-1.1, Mg0.04-0.07, S≤0.04, P≤0.04, surplus are iron.
The production method of alloy steel material for described low temperature resistant pump valve, is characterized in that:
(1), preparing the pig iron and scrap iron originates as ferrous substrate in 1:2-3 ratio, the pig iron is added to drop in stove and melt, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying component and carry out alloying, then add scrap iron fusing, add refining agent double refining, detection and adjust chemical element component content to qualified, casting, casting after-baking etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove be: (1) silicon, magnesium; (2) manganese, vanadium; (3) other residual components; The each batch of time interval of dropping into element is 20-24 minute, after feeding intake, stirs.
Described casting after-baking is: be first warming up to 680-700 DEG C by room temperature with 210-230 DEG C/h of speed, insulation 60-80 minute, be cooled to 500-520 DEG C with 160-170 DEG C/h of speed again, then continue to be warming up to 925-945 DEG C with 210-230 DEG C/h of speed, insulation 3-4 hour; Be cooled to 600-620 DEG C with 160-170 DEG C/h of speed again, then be warming up to 740-750 DEG C with 210-230 DEG C/h of speed, then be cooled to 560-570 DEG C with 160-170 DEG C/h of speed, insulation 60-80 minute; Be cooled to 300-320 DEG C with 150-170 DEG C/h of speed again, insulation 2-3 hour; Be warming up to 430-450 DEG C with 160-170 DEG C/h of speed again, then be cooled to 220-230 DEG C with 110-130 DEG C/h of speed, then be warming up to 520-540 DEG C with 160-170 DEG C/h of speed, 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 portion: instrument comminuted steel shot 3-4, calcium carbide powder 3-4, magnesium powder 3-4, zinc oxide 2-3, titanium dioxide 1-2, sodium metaphosphate 2-3, kaolin powder 5-6, aluminum nitride powder 1-2, zirconium fluoride 1-2, jade powder 3-4, montmorillonite 1-2, calcirm-fluoride 2-3; Preparation method mixes each raw material, is heated to molten condition, 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, calcine 3-4 hour, cooling after, be ground into again 150-250 order powder, obtain final product.
Beneficial effect of the present invention
The present invention adds the elements such as titanium, manganese, niobium on the basis of middle low carbon steel, greatly reduces the cold brittleness of alloy, low temperature resistant; And gradation throwing raw materials, rationally control casting after-baking temperature, obtain steel alloy there is good wearability, hardness is higher, plasticity is good feature; Use part scrap iron as raw material, and through double refining, make more stable uniform of quality. 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. Steel alloy of the present invention is for pump valve, impeller, the conveyance conduit of low temperature environment operation, not fragile, long service life.
Detailed description of the invention
A kind of low temperature resistant pump valve alloy steel material, chemical element composition and mass percent thereof that it contains are: carbon 0.2-0.4, silicon 1.3-1.5, manganese 3.2-3.4, vanadium 0.3-0.4, niobium 0.12-0.24, titanium 1.0-1.1, Mg0.04-0.07, S≤0.04, P≤0.04, surplus are iron.
Described low temperature resistant pump valve by the production method of alloy steel material is:
(1), preparing the pig iron and scrap iron originates as ferrous substrate in 1:2.5 ratio, the pig iron is added to drop in stove and melt, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying component and carry out alloying, then add scrap iron fusing, add refining agent double refining, detection and adjust chemical element component content to qualified, casting, casting after-baking etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove be: (1) silicon, magnesium; (2) manganese, vanadium; (3) other residual components; The each batch of time interval of dropping into element is 23 minutes, after feeding intake, stirs.
Described casting after-baking is: be first warming up to 690 DEG C by room temperature with 220 DEG C/h of speed, be incubated 70 minutes, then be cooled to 510 DEG C with 165 DEG C/h of speed, then continue to be warming up to 935 DEG C with 220 DEG C/h of speed, be incubated 3.5 hours; Be cooled to 610 DEG C with 165 DEG C/h of speed again, then be warming up to 745 DEG C with 220 DEG C/h of speed, then be cooled to 565 DEG C with 165 DEG C/h of speed, be incubated 70 minutes; Be cooled to 310 DEG C with 160 DEG C/h of speed again, be incubated 2.5 hours; Be warming up to 440 DEG C with 165 DEG C/h of speed again, then be cooled to 225 DEG C with 120 DEG C/h of speed, then be warming up to 530 DEG C with 165 DEG C/h of speed, be incubated 2.5 hours, take out air cooling and get final product.
Described refining agent by following weight portion (kilogram) raw material make: instrument comminuted steel shot 3.5, calcium carbide powder 3.5, magnesium powder 3.5, zinc oxide 2.5, titanium dioxide 1.5, sodium metaphosphate 2.5, kaolin powder 5.5, aluminum nitride powder 1.5, zirconium fluoride 1.5, jade powder 3.5, montmorillonite 1.6, calcirm-fluoride 2.4; Preparation method mixes each raw material, is heated to molten condition, 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 DEG C, calcine 3.4 hours, cooling after, then be ground into 200 order powder, to obtain final product.
The low temperature resistant pump valve of the present invention by the mechanical performance of alloy steel material is: hot strength 988MPa, yield strength 867MPa, percentage elongation 14.6%, the contraction percentage of area 28.8%, impact absorbing energy 54.3J, impact flexibility 63.4J/cm2, hardness 284HB.
Claims (1)
1. a low temperature resistant pump valve alloy steel material, is characterized in that: chemical element composition and mass percent thereof that it contains are: carbon 0.2-0.4, silicon 1.3-1.5, manganese 3.2-3.4, vanadium 0.3-0.4, niobium 0.12-0.24, titanium 1.0-1.1, Mg0.04-0.07, S≤0.04, P≤0.04, surplus are iron;
Described low temperature resistant pump valve by the production method of alloy steel material is: (1), the preparation pig iron and scrap iron are originated as ferrous substrate in 1:2-3 ratio, the pig iron is added to drop in stove and melt, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying component and carry out alloying, then add scrap iron fusing, add refining agent double refining, detection and adjust chemical element component content to qualified, casting, casting after-baking; (2) in alloying process, to the lot sequence that drops into alloying element in stove be: (1) silicon, magnesium; (2) manganese, vanadium; (3) other residual components; The each batch of time interval of dropping into element is 20-24 minute, after feeding intake, stirs;
Described casting after-baking is: be first warming up to 680-700 DEG C by room temperature with 210-230 DEG C/h of speed, insulation 60-80 minute, be cooled to 500-520 DEG C with 160-170 DEG C/h of speed again, then continue to be warming up to 925-945 DEG C with 210-230 DEG C/h of speed, insulation 3-4 hour; Be cooled to 600-620 DEG C with 160-170 DEG C/h of speed again, then be warming up to 740-750 DEG C with 210-230 DEG C/h of speed, then be cooled to 560-570 DEG C with 160-170 DEG C/h of speed, insulation 60-80 minute; Be cooled to 300-320 DEG C with 150-170 DEG C/h of speed again, insulation 2-3 hour; Be warming up to 430-450 DEG C with 160-170 DEG C/h of speed again, then be cooled to 220-230 DEG C with 110-130 DEG C/h of speed, then be warming up to 520-540 DEG C with 160-170 DEG C/h of speed, 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 portion: instrument comminuted steel shot 3-4, calcium carbide powder 3-4, magnesium powder 3-4, zinc oxide 2-3, titanium dioxide 1-2, sodium metaphosphate 2-3, kaolin powder 5-6, aluminum nitride powder 1-2, zirconium fluoride 1-2, jade powder 3-4, montmorillonite 1-2, calcirm-fluoride 2-3; Preparation method mixes each raw material, is heated to molten condition, 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, calcine 3-4 hour, cooling after, be ground into again 150-250 order powder, obtain final product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310564388.3A CN103667899B (en) | 2013-11-14 | 2013-11-14 | A kind of alloy steel material and preparation method thereof for low temperature resistant pump valve |
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| CN201310564388.3A CN103667899B (en) | 2013-11-14 | 2013-11-14 | A kind of alloy steel material and preparation method thereof for low temperature resistant pump valve |
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| CN103667899A CN103667899A (en) | 2014-03-26 |
| CN103667899B true CN103667899B (en) | 2016-05-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2009293106A (en) * | 2008-06-09 | 2009-12-17 | Nisshin Steel Co Ltd | High temperature conductive oxide film and current-carrying material |
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Denomination of invention: The invention relates to an alloy steel material for low temperature resistant pump valve and a preparation method thereof Effective date of registration: 20211217 Granted publication date: 20160504 Pledgee: Tongling Yian District Financing Guarantee Center Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2021340000034 |
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Date of cancellation: 20221207 Granted publication date: 20160504 Pledgee: Tongling Yian District Financing Guarantee Center Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2021340000034 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Alloy steel material for low temperature resistant pump valve and its preparation method Effective date of registration: 20221216 Granted publication date: 20160504 Pledgee: Tongling Yian District Financing Guarantee Center Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2022340000044 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20160504 Pledgee: Tongling Yian District Financing Guarantee Center Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2022340000044 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A low-temperature resistant alloy steel material for pump valves and its preparation method Granted publication date: 20160504 Pledgee: Tongling Yian District Financing Guarantee Center Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2024980004043 |
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