CN109022883A - A kind of preparation method of wind-driven generator alloy material - Google Patents
A kind of preparation method of wind-driven generator alloy material Download PDFInfo
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- CN109022883A CN109022883A CN201810943393.8A CN201810943393A CN109022883A CN 109022883 A CN109022883 A CN 109022883A CN 201810943393 A CN201810943393 A CN 201810943393A CN 109022883 A CN109022883 A CN 109022883A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/17—Metallic particles coated with metal
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1026—Alloys containing non-metals starting from a solution or a suspension of (a) compound(s) of at least one of the alloy constituents
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1084—Alloys containing non-metals by mechanical alloying (blending, milling)
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
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Abstract
The present invention relates to a kind of preparation methods of wind-driven generator alloy material, belong to technical field of alloy material.The present invention is coated Fe, Ni, Ti, Mg mixed-powder with tungsten using precipitating cladding process, prepares a kind of wind-driven generator alloy material high with breaking strength by mechanical alloying and hot isostatic pressing method；Tungsten has the characteristics such as height irons point, high heat conductance, low thermal coefficient of expansion, low sputtering raste, low-steam pressure, low hydrogen solubility and low tritium are detained, so that alloy material breaking strength is high, good toughness and wear-resisting；When at room temperature, mixed powder suspension is mixed with hydrochloric acid solution, precipitating will start forming core, and precursor powder is made to have core-shell structure；Titanium and magnesium are all Patterns for Close-Packed Hexagonal Crystal structures in the present invention, can guarantee titanium and the good interface cohesion of magnesium, and the process being heat-treated in preparation process enables the hardness of wind-driven generator alloy material to further increase with crushing resistance, and service life is more lasting.
Description
Technical field
The present invention relates to a kind of preparation methods of wind-driven generator alloy material, belong to technical field of alloy material.
Background technique
As wind generating technology reaches its maturity, wind power generating set just constantly develops to enlargement.Before and after 2002,
The mainstream model of international wind-driven generator in the market has reached 1.5MW or more.In October, 2010, China have also successfully had developed
First 5MW permanent magnet direct-drive offshore wind generating, and in the batch supply of beginning in 2011 domestic and international market, MW grades of wind-force
Generator has become the mainstream of commercialization unit.
In order to improve the service efficiency of wind power plant, major wind-power electricity generation manufacturer of the world sets high-power wind power generation
It is standby to have put into very big human and material resources and financial resources.Moreover, with the promotion of wind power plant installed capacity, each section group
At the size also casting increase of part, and performance requirement also increases accordingly, therefore to the design and performance of wind energy generating plant component
Research have become the forward position of academic research.
Wind power generation unit running environment is exceedingly odious, generally all build offshore islands, outlying mountain area and scarcely populated in
Prairie.Receive the exposure in sunshine of strong wind and heavy rain baptized and The sun is shining fiercely year in year out.Wind-driven generator is to turn wind energy
It is changed to mechanical work, mechanical work drives rotor rotation, the power equipment of final output alternating current.In a broad sense, wind energy is also the sun
Can, so alternatively wind-driven generator, is one kind using the sun as heat source, generates electricity by the heat energy utilization of working media of atmosphere
Machine.
With the development of new energy, wind-driven generator is widely used, and the use environment of wind-driven generator is more complicated, right
The intensity of all parts of wind-driven generator, high temperature resistant, abrasion-resistant, corrosion-resistant, weather resistance requirement are relatively high.
As the severity of modern industry working environment is higher and higher, most of wind-driven generator is exposed to open-air atmosphere again
Under, there is an urgent need to the properties that wind-driven generator could work and not influence itself under the operating conditions such as wear-resisting, anti-corrosion, high temperature, in addition
The industry of whole requirement in to(for) material is also higher and higher, and service life is also required to lengthen.Therefore in industrial actual production, design
A kind of wind-driven generator alloy material that is suitable for is necessary out.
Summary of the invention
The technical problems to be solved by the invention: it is severe for existing wind-driven generator working environment, need wind-power electricity generation
The problem of machine can work under the operating conditions such as wear-resisting, anti-corrosion, high temperature and not influence self property, provides a kind of wind-driven generator
With the preparation method of alloy material.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
(1) Fe, Ni, Ti, Mg powder are mixed for 1: 1: 1: 1 in mass ratio, obtains mixed powder, mixed powder is placed in planetary type ball-milling
In machine, 2~4h of ball milling obtains pretreatment mixed powder；In mass ratio 1: 5: 0.2 will pre-process mixed powder, ammonium metatungstate solution and gather
Vinylpyrrolidone mixing, 30~50min of ultrasonic disperse obtain dispersion liquid, and dispersion liquid and mass fraction are 7% by 3: 5 by volume
Hydrochloric acid solution mixing after stirring 1~2h at room temperature, stirs 20~30min at being 60~80 DEG C in temperature, obtains composite solution, mistake
Filter residue is filtered to obtain, is cleaned to be placed in for filter residue 3~5 times in 60~80 DEG C of baking ovens with deionized water and be dried to constant weight, grind to obtain presoma
Powder；In mass ratio 1: 1: 10 is uniformly mixed titanium carbide, carbon zinc and precursor powder, and 3~5min of ball milling obtains composite powder
Composite powder is pressed and molded by end, obtains block materials；
(2) block materials are vacuumized, and carries out melting stir process, obtain molten metal, under nitrogen protection, molten metal is sucked
In mold, up to alloy material after cooling, alloy material is heat-treated, furnace cooling is to get wind-driven generator alloy
Material.
Ball milling condition parameter described in step (1) is ratio of grinding media to material 10: 1, and ball radius is 5~10mm, revolution and autobiography
Transmission ratio 1: 2, revolving speed are 100~200r/min.
It is 20~30 ton forces that compression molding described in step (1), which is in pressing pressure, and the dwell time is 30~40s, demoulding
Pressure is to be pressed and molded under 8~10 ton forces.
It is vacuumized described in step (2) to be 2.5 × 10 in vacuum degree-31~2h is vacuumized under Pa.
The processing of melting described in step (2) is melt back 3~4 time at being 1100~1300 DEG C in smelting temperature.
Heat treatment described in step (1) is by alloy material under the conditions of hydrogen shield, in the case where temperature is 500~550 DEG C
Keep the temperature 1~2h.
The present invention is compared with other methods, and advantageous effects are:
(1) present invention is coated Fe, Ni, Ti, Mg mixed-powder with tungsten using precipitating cladding process, passes through mechanical alloying and heat etc.
Static pressure method prepares a kind of wind-driven generator alloy material high with breaking strength；There is tungsten height to iron point, high heat conductance, low-heat
The coefficient of expansion, low sputtering raste, low-steam pressure, low hydrogen solubility and low tritium such as are detained at the characteristics, and also have in high temperature high strong
Degree and excellent thermal shock resistance, tungsten have body-centered cubic structure, improve the processing brittleness of tungsten by diffusing particle, so that closing
Golden material breaking strength is high, good toughness and wear-resisting；When at room temperature, mixed powder suspension is mixed with hydrochloric acid solution,
Precipitating will start forming core, still, since reaction temperature is lower at this time, and at the same time the effect that solution is acutely whisked, white
The homogenous nucleation process of wolframic acid precipitating will be suppressed, and can be used as tungsten containing a large amount of nanometer mixed powder in solution at this time
The core of acid precipitating, therefore preferentially on the surface of mixed powder forming core and growth will occur for white tungstic acid precipitating, and finally by mixed powder
It is internal to be coated on wolframic acid precipitating, and makes precursor powder that there is core-shell structure；
(2) titanium and magnesium are all Patterns for Close-Packed Hexagonal Crystal structures in the present invention, can guarantee titanium and the good interface cohesion of magnesium, preparation process
The process of middle heat treatment enables the hardness of wind-driven generator alloy material to further increase with crushing resistance, and service life is more
Aid is long.
Specific embodiment
Fe, Ni, Ti, Mg powder are mixed for 1: 1: 1: 1 in mass ratio, mixed powder is obtained, mixed powder is placed in planetary ball
In grinding machine, by ratio of grinding media to material 10: 1, ball radius is 5~10mm, and the transmission ratio 1: 2 of revolution and autobiography, revolving speed is 100~200r/
Under the conditions of min, 2~4h of ball milling obtains pretreatment mixed powder；In mass ratio 1: 5: 0.2 will pre-process mixed powder, ammonium metatungstate solution
It is mixed with polyvinylpyrrolidone, 30~50min of ultrasonic disperse obtains dispersion liquid, and 3: 5 by dispersion liquid and mass fraction by volume
For the mixing of 7% hydrochloric acid solution, after stirring 1~2h at room temperature, 20~30min is stirred at being 60~80 DEG C in temperature, is obtained compound molten
Liquid filters to obtain filter residue, is cleaned to be placed in for filter residue 3~5 times in 60~80 DEG C of baking ovens with deionized water and be dried to constant weight, grind before
Drive body powder；In mass ratio 1: 1: 10 is uniformly mixed titanium carbide, carbon zinc and precursor powder, and 3~5min of ball milling is obtained compound
Powder, by composite powder pressing pressure be 20~30 ton forces, the dwell time be 30~40s, ejection pressure be 8~10 ton forces under
Compression molding, obtains block materials；By block materials vacuum degree be 2.5 × 10-31~2h is vacuumized under Pa, carries out melting stirring,
Melt back 3~4 times, smelting temperature is 1100~1300 DEG C, obtains molten metal, under nitrogen protection, molten metal is sucked mold
In, it is cooling after up to alloy material, by alloy material under the conditions of hydrogen shield, heat preservation 1 at being 500~550 DEG C in temperature~
2h, furnace cooling is to get wind-driven generator alloy material.
Fe, Ni, Ti, Mg powder are mixed for 1: 1: 1: 1 in mass ratio, mixed powder is obtained, mixed powder is placed in planetary ball
In grinding machine, by ratio of grinding media to material 10: 1, ball radius 5mm, the transmission ratio 1: 2 of revolution and autobiography, under the conditions of revolving speed is 100r/min,
Ball milling 2h obtains pretreatment mixed powder；In mass ratio 1: 5: 0.2 will pretreatment mixed powder, ammonium metatungstate solution and polyvinyl pyrrole
Alkanone mixing, ultrasonic disperse 30min obtain dispersion liquid, and dispersion liquid and mass fraction are that 7% hydrochloric acid solution mixes by 3: 5 by volume
It closes, after stirring 1h at room temperature, stirs 20min at being 60 DEG C in temperature, obtain composite solution, filter to obtain filter residue, it is clear with deionized water
It is placed in for filter wash slag 3 times in 60 DEG C of baking ovens and dries to constant weight, grind to obtain precursor powder；In mass ratio 1: 1: 10 by titanium carbide,
Carbon zinc and precursor powder are uniformly mixed, and ball milling 3min obtains composite powder, in pressing pressure are 20 ton forces by composite powder,
Dwell time is 30s, and ejection pressure is to be pressed and molded under 8 ton forces, obtains block materials；By block materials vacuum degree be 2.5 ×
10-31h is vacuumized under Pa, carries out melting stirring, and melt back 3 times, smelting temperature is 1100 DEG C, molten metal is obtained, in nitrogen protection
Under, molten metal is sucked in mold, is in temperature by alloy material under the conditions of hydrogen shield up to alloy material after cooling
1h is kept the temperature at 500 DEG C, furnace cooling is to get wind-driven generator alloy material.
Fe, Ni, Ti, Mg powder are mixed for 1: 1: 1: 1 in mass ratio, mixed powder is obtained, mixed powder is placed in planetary ball
In grinding machine, by ratio of grinding media to material 10: 1, ball radius 8mm, the transmission ratio 1: 2 of revolution and autobiography, under the conditions of revolving speed is 150r/min,
Ball milling 3h obtains pretreatment mixed powder；In mass ratio 1: 5: 0.2 will pretreatment mixed powder, ammonium metatungstate solution and polyvinyl pyrrole
Alkanone mixing, ultrasonic disperse 40min obtain dispersion liquid, and dispersion liquid and mass fraction are that 7% hydrochloric acid solution mixes by 3: 5 by volume
It closes, after stirring 1h at room temperature, stirs 25min at being 70 DEG C in temperature, obtain composite solution, filter to obtain filter residue, it is clear with deionized water
It is placed in for filter wash slag 4 times in 70 DEG C of baking ovens and dries to constant weight, grind to obtain precursor powder；In mass ratio 1: 1: 10 by titanium carbide,
Carbon zinc and precursor powder are uniformly mixed, and ball milling 4min obtains composite powder, in pressing pressure are 25 ton forces by composite powder,
Dwell time is 35s, and ejection pressure is to be pressed and molded under 9 ton forces, obtains block materials；By block materials vacuum degree be 2.5 ×
10-31h is vacuumized under Pa, carries out melting stirring, and melt back 3 times, smelting temperature is 1200 DEG C, molten metal is obtained, in nitrogen protection
Under, molten metal is sucked in mold, is in temperature by alloy material under the conditions of hydrogen shield up to alloy material after cooling
1h is kept the temperature at 525 DEG C, furnace cooling is to get wind-driven generator alloy material.
Fe, Ni, Ti, Mg powder are mixed for 1: 1: 1: 1 in mass ratio, mixed powder is obtained, mixed powder is placed in planetary ball
In grinding machine, by ratio of grinding media to material 10: 1, ball radius 10mm, the transmission ratio 1: 2 of revolution and autobiography, revolving speed is 200r/min condition
Under, ball milling 4h obtains pretreatment mixed powder；In mass ratio 1: 5: 0.2 will pretreatment mixed powder, ammonium metatungstate solution and polyethylene pyrrole
Pyrrolidone mixing, ultrasonic disperse 50min obtain dispersion liquid, and dispersion liquid and mass fraction are that 7% hydrochloric acid solution mixes by 3: 5 by volume
It closes, after stirring 2h at room temperature, stirs 30min at being 80 DEG C in temperature, obtain composite solution, filter to obtain filter residue, it is clear with deionized water
It is placed in for filter wash slag 5 times in 80 DEG C of baking ovens and dries to constant weight, grind to obtain precursor powder；In mass ratio 1: 1: 10 by titanium carbide,
Carbon zinc and precursor powder are uniformly mixed, and ball milling 5min obtains composite powder, in pressing pressure are 30 ton forces by composite powder,
Dwell time is 40s, and ejection pressure is to be pressed and molded under 10 ton forces, obtains block materials；By block materials vacuum degree be 2.5 ×
10-32h is vacuumized under Pa, carries out melting stirring, and melt back 4 times, smelting temperature is 1300 DEG C, molten metal is obtained, in nitrogen protection
Under, molten metal is sucked in mold, is in temperature by alloy material under the conditions of hydrogen shield up to alloy material after cooling
2h is kept the temperature at 550 DEG C, furnace cooling is to get wind-driven generator alloy material.
Reference examples: the wind-driven generator alloy material of Zhejiang company production.
The wind-driven generator alloy material that example and reference examples are prepared is detected, specific detection is as follows:
Tensile property: according to GB/T228 1 " metal material tensile testing at ambient temperature " and " gold of GB/T13329 1
Belong to material at low temperature stretching test method " it carries out.
Impact flexibility: it is rushed according to the respective specified of GB/T229 1 " metal Charpy notch impact test method "
Hit experimental test.
Hardness: it is carried out by the Room GB 231 1 2009 " metal material Brinell hardness test ".
Specific test result such as table 1.
1 performance characterization contrast table of table
| Detection project | Example 1 | Example 2 | Example 3 | Reference examples |
| Tensile strength/MPa | 1214.0 | 1200.6 | 1215.9 | 866.3 |
| Ballistic work/J | 94.4 | 93.3 | 92.1 | 25.5 |
| Hardness/HB | 409 | 404 | 401 | 295 |
As shown in Table 1, wind-driven generator alloy material prepared by the present invention has good tensile strength, impact flexibility and hard
Degree, service life is longer under severe working environment.
Claims (6)
1. a kind of preparation method of wind-driven generator alloy material, it is characterised in that specific steps are as follows:
(1) Fe, Ni, Ti, Mg powder are mixed for 1: 1: 1: 1 in mass ratio, obtains mixed powder, mixed powder is placed in planetary type ball-milling
In machine, 2~4h of ball milling obtains pretreatment mixed powder；In mass ratio 1: 5: 0.2 will pre-process mixed powder, ammonium metatungstate solution and gather
Vinylpyrrolidone mixing, 30~50min of ultrasonic disperse obtain dispersion liquid, and dispersion liquid and mass fraction are 7% by 3: 5 by volume
Hydrochloric acid solution mixing after stirring 1~2h at room temperature, stirs 20~30min at being 60~80 DEG C in temperature, obtains composite solution, mistake
Filter residue is filtered to obtain, is cleaned to be placed in for filter residue 3~5 times in 60~80 DEG C of baking ovens with deionized water and be dried to constant weight, grind to obtain presoma
Powder；In mass ratio 1: 1: 10 is uniformly mixed titanium carbide, carbon zinc and precursor powder, and 3~5min of ball milling obtains composite powder
Composite powder is pressed and molded by end, obtains block materials；
(2) block materials are vacuumized, and carries out melting stir process, obtain molten metal, under nitrogen protection, molten metal is sucked
In mold, up to alloy material after cooling, alloy material is heat-treated, furnace cooling is to get wind-driven generator alloy
Material.
2. a kind of preparation method of wind-driven generator alloy material according to claim 1, it is characterised in that: step
(1) the ball milling condition parameter described in is ratio of grinding media to material 10: 1, and ball radius is 5~10mm, and the transmission ratio 1: 2 of revolution and autobiography turns
Speed is 100~200r/min.
3. a kind of preparation method of wind-driven generator alloy material according to claim 1, it is characterised in that: step
(1) it is 20~30 ton forces that the compression molding described in, which is in pressing pressure, and the dwell time is 30~40s, and ejection pressure is 8~10 tons
It is pressed and molded under power.
4. a kind of preparation method of wind-driven generator alloy material according to claim 1, it is characterised in that: step
(2) vacuumizing to be 2.5 × 10 in vacuum degree described in-31~2h is vacuumized under Pa.
5. a kind of preparation method of wind-driven generator alloy material according to claim 1, it is characterised in that: step
(2) the melting processing described in is melt back 3~4 time at being 1100~1300 DEG C in smelting temperature.
6. a kind of preparation method of wind-driven generator alloy material according to claim 1, it is characterised in that: step
(1) heat treatment described in is to keep the temperature 1~2h at being 500~550 DEG C in temperature by alloy material under the conditions of hydrogen shield.
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| CN106041112A (en) * | 2016-07-04 | 2016-10-26 | 北京科技大学 | Freeze drying preparing method for dispersion strengthening tungsten powder |
| CN106623960A (en) * | 2016-11-07 | 2017-05-10 | 北京科技大学 | Preparing method for zirconium boride dispersion strengthening tungsten powder |
| CN106981646A (en) * | 2017-05-29 | 2017-07-25 | 苏州思创源博电子科技有限公司 | A kind of preparation method of cladded type ferrosilicon silicate of lithium composite |
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2018
- 2018-08-17 CN CN201810943393.8A patent/CN109022883A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913395A (en) * | 2011-08-05 | 2013-02-06 | 通用电气公司 | Wind turbine component having a lightweight structure |
| CN104058735A (en) * | 2014-06-09 | 2014-09-24 | 青岛东方循环能源有限公司 | Iron-zirconium-tungsten complex ferrite and preparation method thereof |
| CN104058737A (en) * | 2014-06-10 | 2014-09-24 | 青岛东方循环能源有限公司 | Preparation method of nickel and tungsten ferrite |
| CN105518169A (en) * | 2014-10-20 | 2016-04-20 | 中南大学 | Method for preparing rare-earth oxide dispersion strengthened fine-grained tungsten material |
| CN106041112A (en) * | 2016-07-04 | 2016-10-26 | 北京科技大学 | Freeze drying preparing method for dispersion strengthening tungsten powder |
| CN106623960A (en) * | 2016-11-07 | 2017-05-10 | 北京科技大学 | Preparing method for zirconium boride dispersion strengthening tungsten powder |
| CN106981646A (en) * | 2017-05-29 | 2017-07-25 | 苏州思创源博电子科技有限公司 | A kind of preparation method of cladded type ferrosilicon silicate of lithium composite |
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Application publication date: 20181218 |