CN104451453A - Wear-resistant alloy steel material for fan blades of wind-driven generator - Google Patents
Wear-resistant alloy steel material for fan blades of wind-driven generator Download PDFInfo
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- CN104451453A CN104451453A CN201410644368.1A CN201410644368A CN104451453A CN 104451453 A CN104451453 A CN 104451453A CN 201410644368 A CN201410644368 A CN 201410644368A CN 104451453 A CN104451453 A CN 104451453A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a wear-resistant alloy steel material for fan blades of a wind-driven generator. The wear-resistant alloy steel material comprises the following components in percentage by mass: 0.02-0.14% of C, 7-10.5% of Cr, less than 1.5% of Mn, 0.5-1.5% of Si, 0.01-0.05% of P, 0.03-0.08% of S, 3.5-5.5% of Al, 1.2-2.2% of W, 0.05-0.10% of V and the balance of Fe. The wear-resistant alloy steel material for fan blades of a wind-driven generator, which is disclosed by the invention, has the advantages of good comprehensive mechanical properties, higher strength and fatigue strength, yield strength which can reach above 1010MPa, tensile strength which can reach above 1250MPa, hardness which can reach above 530Hv and excellent toughness.
Description
Technical field
The invention belongs to technical field of wind power generation, be specifically related to a kind of wind-power electricity generation fan blade Wear-resistant alloy steel material.
Background technology
Wind-power electricity generation is a ripe cheap electric power resource, and it is made up of three-phase permanent magnet electricity generator, fan blade, pylon, drag-line, controller, invertor, secondary battery etc.When Wind power propelling fan blade rotates, the three-phase low-voltage alternating-current of generation becomes direct current through dedicated control circuit and to charge a battery storage.220v is produced by invertor (inverter), 50Hz alternating-current during use, equally convenient with use mains supply, once drop into long-term electricity consumption and do not spend.A set of 300W aerogenerator can meet the electricity consumption such as TV, DVD, DVB, electric fan, illumination of one family, if the more powerful blower fan of preparation, also can meet the electrical equipment of the larger power consumption such as refrigerator, small pump and the use of mechanical means.It is that grassland, island, mountain area, farm, forest farm, fishing boat etc. are without electricity or the normal regional desirable power supply that has a power failure.
Such as application number is 200910028966.5, denomination of invention is the blade of aerogenerator, relate to a kind of blade of aerogenerator, the root of blade comprising blade body and be attached thereto, described blade body is a hollow shell, root of blade is that overall metallic substance is formed, and it is characterized in that described blade shell connects and composes by Framework Of Steel Reinforcement and at the concrete of Framework Of Steel Reinforcement upper.The present invention is mainly reinforced concrete structure, the relatively blade of wind-driven generator of traditional glass steel construction, there is better intensity and wearing quality, and material is easy to get, low price, effectively can reduce the cost of aerogenerator, be convenient to aerogenerator and promoted widely in the outlying low developed area that wind resource is abundant.
Such as application number is 201010546214.0 again, denomination of invention is the patent of composite material for wind power generation blades, relate to a kind of composite material for wind power generation blades, by composition epoxy resin and account for composition epoxy resin weight 68 ~ 73% fiber-reinforced fabric form.Described composition epoxy resin, comprises component A and B component that weight proportion is 100: 28 ~ 33.Component A by epoxy equivalent (weight) be the bisphenol A type epoxy resin of 175 ~ 185 grams/equivalent, bifunctional epoxide diluent, simple function group epoxide diluent thinner, epoxy coupling agents and antioxidant form, B component is made up of aliphatic polyamine and cycloaliphatic amines.Described in fiber-reinforced fabric.The invention discloses the weight proportion of each raw material.
Fan blade is one of the most violent and worst parts of Working environment of withstand temp load in wind-power electricity generation, thus very harsh to the requirement of its material.Utilize the fan blade of matrix material and conventional unsaturated polyester and the epoxide resin material adopted in prior art, the ability that its intensity and wind resistance hit does not catch up with the requirement of present blade used for wind power generation.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned the deficiencies in the prior art, and provides a kind of wind-power electricity generation fan blade Wear-resistant alloy steel material that a kind of cost is low, erosion resistance is strong and wear resistance is strong.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of wind-power electricity generation fan blade Wear-resistant alloy steel material, each composition and mass percent thereof are:
C:0.02 ~ 0.14%, Cr:7 ~ 10.5%, Mn < 1.5%, Si:0.5 ~ 1.5%, P:0.01 ~ 0.05%, S:0.03 ~ 0.08%, Al:3.5 ~ 5.5%, W:1.2 ~ 2.2%, V:0.05 ~ 0.10%, surplus is Fe.
A kind of wind-power electricity generation fan blade Wear-resistant alloy steel material, each composition and mass percent thereof are:
C:0.02%, Cr:7%, Mn < 1.5%, Si:0.5%, P:0.02%, S:0.03%, Al:3.5%, W:1.2%, V:0.05%, surplus is Fe.
A kind of wind-power electricity generation fan blade Wear-resistant alloy steel material, each composition and mass percent thereof are:
C:0.04%, Cr:8.5%, Mn < 1.5%, Si:0.7%, P:0.03%, S:0.04%, Al:4.0%, W:1.4%, V:0.06%, surplus is Fe.
A kind of wind-power electricity generation fan blade Wear-resistant alloy steel material, each composition and mass percent thereof are:
C:0.06%, Cr:8.5%, Mn < 1.5%, Si:0.8%, P:0.04%, S:0.06%, Al:4.5%, W:1.6%, V:0.08%, surplus is Fe.
A kind of wind-power electricity generation fan blade Wear-resistant alloy steel material, each composition and mass percent thereof are:
C:0.1%, Cr:10%, Mn < 1.5%, Si:1.0%, P:0.05%, S:0.08%, Al:5.0%, W:2.2%, V:0.10%, surplus is Fe.
After the present invention adopts technique scheme, there is following technique effect:
The present invention, by changing the proportioning of alloy steel material, suitably reduces the content of silicon, manganese, and appropriateness adds chromium element, significantly improves intensity, hardness and wear resistance, and can improve oxidation-resistance and the erosion resistance of fan blade.Fan blade tool constructed in accordance has the following advantages, and specifically has:
1, add vanadium in the present invention, vanadium mainly exists with the form of carbide in steel, and the carbide of vanadium is the hardest and the most wear-resisting in metallic carbide, and the vanadium carbide of Dispersed precipitate can improve hardness and the wear resistance of steel alloy.
2, add oxygenant aluminium in the present invention, aluminium has oxidation-resistance and corrosion resistance, and aluminium and chromium, silicon share, and can significantly improve the high temperature non-scale performance of steel and the ability of high-temperature corrosion resistance.There is good resistance to corrosion fatigue and erosion corrosion performance.
3, comprehensive mechanical property is good, has higher intensity and fatigue strength, and yield strength can reach more than 1010MPa, and tensile strength can reach more than 1250MPa, and hardness can reach more than 530Hv, good-toughness.
4, good weldability, hot cracking tendency is little, and do not need preheating before general weldering, postwelding does not need thermal treatment.
Embodiment
For making object of the present invention and technical scheme clearly, below in conjunction with the embodiment of the present invention, technical scheme of the present invention is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on described embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, all belongs to the scope of protection of the invention.
Embodiment 1
C:0.02%, Cr:7%, Mn < 1.5%, Si:0.5%, P:0.02%, S:0.03%, Al:3.5%, W:1.2%, V:0.05%, surplus is Fe.
Embodiment 2
C:0.04%, Cr:8.5%, Mn < 1.5%, Si:0.7%, P:0.03%, S:0.04%, Al:4.0%, W:1.4%, V:0.06%, surplus is Fe.
Embodiment 3
C:0.06%, Cr:8.5%, Mn < 1.5%, Si:0.8%, P:0.04%, S:0.06%, Al:4.5%, W:1.6%, V:0.08%, surplus is Fe.
Embodiment 4
C:0.1%, Cr:10%, Mn < 1.5%, Si:1.0%, P:0.05%, S:0.08%, Al:5.0%, W:2.2%, V:0.10%, surplus is Fe.
The effect of the above each composition:
Carbon: carbon is one of efficient hardening element ensureing steel acquisition high strength, high rigidity, and it can significantly improve intensity and the hardness of steel, prevents from occurring ferrite in quenching structure.Add-on is too much, and matrix fragility increases, plasticity declines.
Silicon: the activity of carbon in austenite can be increased, in bainite ferrite process of growth, unnecessary carbon can discharged in the contiguous austenite of side, interface, because silicon hinders cementite to separate out, cause the rich carbon of austenite around, make the rich carbon retained austenite stabilization between bainite ferrite slip or in slip, form carbide-free Bainite.When silicone content is lower, because silicon suppresses the effect of Carbide Precipitation more weak, promote that the effect of bainite transformation is not strong yet, in isothermal transformation, first separate out bainite at austenite grain boundary, and the austenite do not changed changes martensite in process of cooling subsequently, its microstructure is made up of bainite ferrite, martensite and a small amount of residual austenite, there is high intensity, hardness, and impelling strength and fracture toughness property lower; When silicone content is higher, occurs in tissue a large amount of not changing austenite structure, cause the hardness of material to decline.
Manganese: mainly in order to improve the hardening capacity of steel, add-on is too much, will the tissue of alligatoring steel, increases hot cracking tendency, considers, controlled be less than 1.5% by its content.
Sulphur: add a small amount of sulphur in steel, can improve machinability.
Chromium: can significantly improve intensity, hardness and wear resistance, can also improve oxidation-resistance and the erosion resistance of steel.
Aluminium: reductor.A small amount of aluminium is added in steel, can crystal grain thinning, improve impelling strength.
Vanadium: vanadium and carbon, nitrogen, oxygen have extremely strong avidity, form with it corresponding stable compound.Vanadium mainly exists with the form of carbide in steel, and the carbide of vanadium is the hardest and the most wear-resisting in metallic carbide, and the vanadium carbide of Dispersed precipitate can improve hardness and the wear resistance of steel alloy.When suitable thermal treatment makes carbide dispersion separate out, vanadium can improve creep rupture strength and the creep resistance of steel.
The steel alloy that above embodiment is formed, obtains following experimental data through experiment:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Yield strength/MPa | 998 | 1000 | 1015 | 1020 |
| Tensile strength/MPa | 1190 | 1220 | 1250 | 1255 |
| Hardness/Hv | 520 | 525 | 528 | 530 |
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
The implication of the "and/or" described in the present invention refers to respective Individual existence or both simultaneous situations include interior.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification sheets, must determine its technical scope according to right.
Claims (5)
1. a wind-power electricity generation fan blade Wear-resistant alloy steel material, is characterized in that: each composition and mass percent thereof are:
C:0.02 ~ 0.14%, Cr:7 ~ 10.5%, Mn < 1.5%, Si:0.5 ~ 1.5%, P:0.01 ~ 0.05%, S:0.03 ~ 0.08%, Al:3.5 ~ 5.5%, W:1.2 ~ 2.2%, V:0.05 ~ 0.10%, surplus is Fe.
2. a kind of wind-power electricity generation fan blade Wear-resistant alloy steel material according to claim 1, is characterized in that: each composition and mass percent thereof are:
C:0.02%, Cr:7%, Mn < 1.5%, Si:0.5%, P:0.02%, S:0.03%, Al:3.5%, W:1.2%, V:0.05%, surplus is Fe.
3. a kind of wind-power electricity generation fan blade Wear-resistant alloy steel material according to claim 1, is characterized in that: each composition and mass percent thereof are:
C:0.04%, Cr:8.5%, Mn < 1.5%, Si:0.7%, P:0.03%, S:0.04%, Al:4.0%, W:1.4%, V:0.06%, surplus is Fe.
4. a kind of wind-power electricity generation fan blade Wear-resistant alloy steel material according to claim 1, is characterized in that: each composition and mass percent thereof are:
C:0.06%, Cr:8.5%, Mn < 1.5%, Si:0.8%, P:0.04%, S:0.06%, Al:4.5%, W:1.6%, V:0.08%, surplus is Fe.
5. a kind of wind-power electricity generation fan blade Wear-resistant alloy steel material according to claim 1, is characterized in that: each composition and mass percent thereof are:
C:0.1%, Cr:10%, Mn < 1.5%, Si:1.0%, P:0.05%, S:0.08%, Al:5.0%, W:2.2%, V:0.10%, surplus is Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410644368.1A CN104451453A (en) | 2014-11-14 | 2014-11-14 | Wear-resistant alloy steel material for fan blades of wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410644368.1A CN104451453A (en) | 2014-11-14 | 2014-11-14 | Wear-resistant alloy steel material for fan blades of wind-driven generator |
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| CN104451453A true CN104451453A (en) | 2015-03-25 |
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| CN201410644368.1A Withdrawn CN104451453A (en) | 2014-11-14 | 2014-11-14 | Wear-resistant alloy steel material for fan blades of wind-driven generator |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1143688A (en) * | 1995-08-18 | 1997-02-26 | 赵学胜 | Al-Mn-Si-N series austenitic stainless acid-resisting steel |
| CN1714161A (en) * | 2002-11-19 | 2005-12-28 | 工业钢克鲁梭公司 | Method for making an abrasion resistant steel plate and plate obtained |
| EP1988182A1 (en) * | 2006-02-06 | 2008-11-05 | Babcock-Hitachi Kabushiki Kaisha | Ferritic heat-resistant steel |
| CN101680065A (en) * | 2007-06-04 | 2010-03-24 | 住友金属工业株式会社 | Ferrite heat resistant steel |
| JP2014080656A (en) * | 2012-10-17 | 2014-05-08 | Hitachi Ltd | Precipitation hardening type martensitic stainless steel and steam turbine long blade using the same |
-
2014
- 2014-11-14 CN CN201410644368.1A patent/CN104451453A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1143688A (en) * | 1995-08-18 | 1997-02-26 | 赵学胜 | Al-Mn-Si-N series austenitic stainless acid-resisting steel |
| CN1714161A (en) * | 2002-11-19 | 2005-12-28 | 工业钢克鲁梭公司 | Method for making an abrasion resistant steel plate and plate obtained |
| EP1988182A1 (en) * | 2006-02-06 | 2008-11-05 | Babcock-Hitachi Kabushiki Kaisha | Ferritic heat-resistant steel |
| CN101680065A (en) * | 2007-06-04 | 2010-03-24 | 住友金属工业株式会社 | Ferrite heat resistant steel |
| JP2014080656A (en) * | 2012-10-17 | 2014-05-08 | Hitachi Ltd | Precipitation hardening type martensitic stainless steel and steam turbine long blade using the same |
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Application publication date: 20150325 |