CN108788160A - A kind of corrosion-resistant stator - Google Patents
A kind of corrosion-resistant stator Download PDFInfo
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- CN108788160A CN108788160A CN201810661661.7A CN201810661661A CN108788160A CN 108788160 A CN108788160 A CN 108788160A CN 201810661661 A CN201810661661 A CN 201810661661A CN 108788160 A CN108788160 A CN 108788160A
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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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
- B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
-
- 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
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
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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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1017—Multiple heating or additional steps
- B22F3/1021—Removal of binder or filler
- B22F3/1025—Removal of binder or filler not by heating only
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
Abstract
The present invention relates to a kind of stators, and in particular to a kind of corrosion-resistant stator belongs to stator material field.Corrosion-resistant stator is prepared by aluminum steel composite material, the mass ratio (2-3) of the aluminum steel composite material medium alloy steel and aluminium alloy：1, the corrosion-resistant stator of the present invention is prepared by aluminum alloy materials and alloy steel material, it can be superimposed the intensity and corrosion resistance of the two, the corrosion resistance of the stator improved, the steel alloy that enhancing skeleton enables to is added in steel alloy has high fusing point and corrosion resistance.
Description
Invention field
The present invention relates to a kind of stators, and in particular to a kind of corrosion-resistant stator belongs to stator material field.
Background technology
Magneto has many advantages, such as that loss is low, efficient, in the present that energy saving and environmental protection is paid more and more attention
It, application is more and more extensive.Such as wind turbine, water pump, compressor etc. is with continuous, the applied field of constant speed and one direction operation
It closes, common asynchronous moter is caused the waste of electric energy, just gradually replaced by magneto due to efficiency, the reasons such as power factor.Together
When, many industrial machineries, the speed of service needs arbitrary setting and adjusting, but velocity control accuracy is of less demanding, permanent-magnet synchronous
Motor due to small, it is energy-efficient the advantages that, be increasingly becoming the major product of the occasion.
Motor includes stator and rotor.Coil winding is on the stator core of motor, when coil midstream crosses the electricity of variation
When stream, the magnetic field which generates to generate vortex phenomenon in stator core, which makes stator core fever waste
Energy, reduces the efficiency of motor.
Invention content
The present invention is in view of the above-mentioned problems existing in the prior art, it is proposed that a kind of corrosion-resistant stator, the corrosion-resistant stator are answered
For in motor, the service life of motor can be significantly improved.
The purpose of the present invention is realized by following technical solution：A kind of corrosion-resistant stator, the corrosion-resistant stator is by aluminium
Steel composite material is prepared, the mass ratio (2-3) of the aluminum steel composite material medium alloy steel and aluminium alloy：1, the steel alloy
Material is the component of following mass percent：C：0.8-1.4%, Si：0.2-0.5%, Ti：0.04-0.06%, B：0.05-
0.07%, Cr：0.05-0.07%, Mn：0.35-0.39%, Mo：0.04-0.05%, Ce：0.0005-0.0007% enhances bone
Frame：12-18%, Mg70.7Zn28Nd1.3Quasi-crystalline substance：0.12-0.15%, surplus are iron and inevitable impurity.
The corrosion-resistant stator of the present invention is prepared by aluminum alloy materials and alloy steel material, the intensity that both can be superimposed and
The alloy that enhancing skeleton enables to is added in corrosion resistance, the corrosion resistance of the stator improved in steel alloy
Steel has high fusing point and corrosion resistance.
In a kind of above-mentioned corrosion-resistant stator, the enhancing skeleton is by porous organic matter skeleton and NiZr2It is made.Group skeletonization
The structure that the porous organic matter skeleton of frame has microporous three-dimensional netted, and the polymer synthesized is made of nano particle accumulation
Reticular structure, particle very little, about 10-15nm or so are highly suitable for packing material, in the present invention, by porous organic matter
Skeleton and NiZr2Enhance skeleton, wherein NiZr in conjunction with being formed2For the intermetallic compound of topological close-packed configuration, there is high melt
Point, extremely strong inoxidizability, and due to the presence of Zr, there is extraordinary intensity, heat erosion and croop property, the present invention
Enhancing skeleton is formed by both combinations of materials, and the alloy steel material corrosion resistance that can ensure is high, to make to be made
Stator meet the present invention requirement.
Preferably, the porous organic matter skeleton and NiZr2Mass ratio be 4.5-5.5：1.
In a kind of above-mentioned corrosion-resistant stator, the Al6CuMg4The grain size of quasi-crystalline substance is 40-50 μm.It is special that quasi-crystalline substance has
Atomic arrangement structure causes its properties, such as electrical property, heat conductivility, mechanical property and surface property to be different from it
His metal material, quasi-crystalline substance have low-friction coefficient, high rigidity, brittleness, higher resistivity, inoxidizability and non-stick, this hair
It is bright with Al6CuMg4Quasi-crystalline substance is added to as enhancing particle in alloy steel material, and phase transition occurs in preparation process, is formed new
Crystalline phase, yield strength, tensile strength and the elasticity modulus of the steel alloy improved, in preparation process, by special
Method keeps the original structure of quasi-crystalline substance, is allowed to that the variation of ingredient and structure does not occur, is uniformly distributed at crystal face.
In a kind of above-mentioned corrosion-resistant stator, the aluminum alloy materials are the component of following mass percent：Nb：0.05-
0.056%, C：0.02-0.03%, Mn：0.5-0.6%, Ti:0.3-0.4%, Mo:0.25-0.4%, Si:0.45-0.5%,
V:0.14-0.16%, La:0.005-0.006%, surplus Al.In the corrosion-resistant stator of the present invention, the addition of niobium element can produce
Raw solution strengthening effect, improves the intensity and hardness of aluminium alloy, and the carbon content reduced in the present invention in aluminium alloy can be such that aluminium closes
Gold utensil has a preferable processability and good welding performance, and prevents in aluminium alloy base carbon and manganese in a certain extent
Heart regional segregation can avoid the violent precipitation of niobium carbide, niobium nitride and niobium carbonitrides in aluminium alloy, can increase niobium in aluminium alloy
The equilirbium solid solubility of element.In the corrosion-resistant stator of the present invention, it is also added into micro rare earth element, rare earth can improve low-carbon aluminium
The uniformity of alloy original austenite grains can refine the original austenite grains of low-carbon aluminium alloy, while the addition of rare earth
The solid solubility temperature of low-carbon aluminium alloy Nb, Ti can be reduced, the solid solution percentage composition of Nb, Ti in steel is improved.
Powder processed：First use high-pressure water gas combined atomizing method that the powder of steel alloy is made, then on the basis of alloy steel powder
Aluminum steel composite powder is made again by high-pressure water gas combined atomizing method in upper addition aluminium alloy stock；
It is kneaded：First nanometer β-SiC powder is mixed with binder in torque rheometer and carries out premix refining, adds aluminum steel
Composite powder is kneaded；
Granulation：Raw material after mixing is pelletized in granulator；
Injection：It carries out injecting to obtain injection base using synchronous injection technique；
Remove binder：The binder in injection base is removed using two step degreasing methods；
Sintering cooling：Natural cooling obtains after the injection base for removing binder is sintered in vacuum sintering furnace under argon gas atmosphere
Corrosion-resistant stator.
The present invention use metal injection molded moulding process, metal injection molded technology by the way that above two technology is blended,
The accuracy of manufacture of complex shape part can be improved, and is evenly distributed without cutting, part material, effectively save can be produced
Material utilizes the stainless steel parts that are produced through injection molding technology, physical property, chemical property and mechanical performance,
It compares favourably with the part quality of forging, is highly suitable for producing Miniature high-density metal parts in enormous quantities.
The present invention adds the work that aluminium alloy stock prepares aluminum steel composite powder jointly using alloy steel powder is first prepared
Skill, the quasi-crystalline substance wherein contained in alloy steel powder and enhancing skeleton can be by the raw materials of other in secondary-atomizing, with steel alloy
There is sufficient co-operative effect, ensures the intensity and surface roughness of stator in subsequent injection process.
In a kind of above-mentioned preparation method of corrosion-resistant stator, the quality of the nanometer β-SiC powder is aluminum steel composite powder
The 0.7-0.8% of last quality.Structure that there are many SiC, the β-SiC of the most common α-SiC for having cubic and cubic,
Middle β-SiC have higher hardness, better toughness and grinding performance, and also superior sintering character, the present invention is by adding
Enter a nanometer β-SiC powder, powder is thinner, and sintering activity is higher.
Preferably, the grain size of the nanometer β-SiC powder is 10-15nm.
In a kind of above-mentioned preparation method of corrosion-resistant stator, the temperature of the pre- mixing is 200-250 DEG C, is kneaded in advance
Time is 25-30min, and the rotating speed being kneaded in advance is 50-60r/min.The present invention first carries out nanometer β-SiC powder and binder pre-
It is kneaded, nanometer β-SiC powder can be made pre-dispersed in binder, raw material is overlying on during being subsequently kneaded with raw material powder
In powder, so as to get composite material strength it is high, powder particle gap is filled up by adhesive, and powder particle surface is by adhesive packet
It wraps up in, it is smaller that powder particle changes migration energy required when origin-location so that raw material powder has good mobile performance and forming
Performance.
In a kind of above-mentioned preparation method of corrosion-resistant stator, the temperature of the mixing is 150-170 DEG C, the time of mixing
Rotating speed for 4-5h, mixing is 60-70r/min.
In a kind of above-mentioned preparation method of corrosion-resistant stator, the binder is paraffin based binder, the paraffinic base
Binder is the component of following mass percent：Polypropylene：22-24%, peanut oil：5-10%, castor oil：5-10%, surplus
For microcrystalline wax.In the corrosion-resistant stator of the present invention, the microcrystalline wax is used as plasticizer and lubricant, can reduce injection melt
Viscosity improves the mobility of melt and convenient for demoulding；Peanut oil and castor oil ensure mixed as lubricant or surfactant
Material is uniform, and lubricating action is played between powder particle, between powder particle and die wall；Polypropylene mainly plays skeleton and conformal work
With providing intensity for green compact.
In a kind of above-mentioned preparation method of corrosion-resistant stator, the mass ratio of the aluminum steel composite powder quality and binder
For 1.4-1.5：1.The addition of powder can make the big raising of feeding large viscosity, and content of powder more high viscosity is bigger, and the viscosity of feeding is straight
Can connect influences injection molding member be injection moulded and have zero defect.If powder loading is excessively high, viscosity is excessive, forming can be caused tired
It is difficult；If powder loading is too low, volume fraction is larger shared by adhesive, receipts are easily led in subsequent degreasing and sintering process
Contracting is uneven, and workpiece is made to deform.
In a kind of above-mentioned preparation method of corrosion-resistant stator, the degreasing includes the following steps：First step solvent degreasing
It carries out in methylene chloride；Second step thermal debinding is carried out in tube furnace in argon atmospher；
In a kind of above-mentioned preparation method of corrosion-resistant stator, the sintering process is that heating rate is 0.8-1 DEG C/min,
Maximum temperature is 1340-1400 DEG C.
Compared with prior art, the invention has the advantages that：
1, the corrosion-resistant stator of the present invention is prepared by aluminum alloy materials and alloy steel material, can be superimposed the intensity of the two
And corrosion resistance, the intensity of the stator improved, the steel alloy tool that enhancing skeleton enables to is added in steel alloy
There are high fusing point and intensity；
2, the present invention adds the work that aluminium alloy stock prepares aluminum steel composite powder jointly using alloy steel powder is first prepared
Skill, the quasi-crystalline substance wherein contained in alloy steel powder and enhancing skeleton can be by the raw materials of other in secondary-atomizing, with steel alloy
There is sufficient co-operative effect, ensures the intensity and surface roughness of stator in subsequent injection process；
3, raw material composition of the present invention is reasonable, and coordinates certain preparation method, and the stator enabled to has corrosion-resistant
Property, to reach the object of the invention.
Specific implementation mode
The following is specific embodiments of the present invention, and technical scheme of the present invention will be further described, but the present invention is simultaneously
It is not limited to these embodiments.
Embodiment 1
Powder processed：First use high-pressure water gas combined atomizing method that the powder of steel alloy is made, then on the basis of alloy steel powder
Aluminum steel composite powder is made again by high-pressure water gas combined atomizing method in upper addition aluminium alloy stock；The aluminum steel composite wood
Expect the mass ratio 2 of medium alloy steel and aluminium alloy：1, the alloy steel material is the component of following mass percent：C：0.8%,
Si：0.2%, Ti：0.04%, B：0.05%, Cr：0.05%, Mn：0.35%, Mo：0.04%, Ce：0.0005%, enhance bone
Frame：12%, Mg70.7Zn28Nd1.3Quasi-crystalline substance：0.12%, surplus is iron and inevitable impurity, and the enhancing skeleton is had by porous
Machine object skeleton and NiZr2It is made, porous organic matter skeleton and NiZr2Mass ratio be 4.5：1；The Al6CuMg4The grain of quasi-crystalline substance
Diameter is 40 μm, and the aluminum alloy materials are the component of following mass percent：Nb：0.05%, C：0.02%, Mn：0.5%, Ti:
0.3%, Mo:0.25%, Si:0.45%, V:0.14%, La:0.005%, surplus Al；
It is kneaded：First nanometer β-SiC powder is mixed with binder in torque rheometer and carries out premix refining, adds aluminum steel
Composite powder is kneaded；The temperature of the pre- mixing is 200 DEG C, and the time being kneaded in advance is 25min, and the rotating speed being kneaded in advance is 50r/
The temperature of min, the mixing are 150 DEG C, and the time of mixing is 4h, and the rotating speed of mixing is 60r/min；
Granulation：Raw material after mixing is pelletized in granulator；
Injection：It carries out injecting to obtain injection base using synchronous injection technique；
Remove binder：The binder in injection base is removed using two step degreasing methods；The binder bonds for paraffinic base
Agent, the paraffin based binder are the component of following mass percent：Polypropylene：22%, peanut oil：5%, castor oil：5%,
Surplus is microcrystalline wax, and the mass ratio of the aluminum steel composite powder quality and binder is 1.4：1；The degreasing includes following step
Suddenly：First step solvent degreasing carries out in methylene chloride；Second step thermal debinding is carried out in tube furnace in argon atmospher；
Sintering cooling：Natural cooling obtains after the injection base for removing binder is sintered in vacuum sintering furnace under argon gas atmosphere
Corrosion-resistant stator, the sintering process are that heating rate is 0.8 DEG C/min, and maximum temperature is 1340 DEG C.
Embodiment 2
Powder processed：First use high-pressure water gas combined atomizing method that the powder of steel alloy is made, then on the basis of alloy steel powder
Aluminum steel composite powder is made again by high-pressure water gas combined atomizing method in upper addition aluminium alloy stock；The aluminum steel composite wood
Expect the mass ratio 2.2 of medium alloy steel and aluminium alloy：1, the alloy steel material is the component of following mass percent：C：0.9%,
Si：0.25%, Ti：0.045%, B：0.055%, Cr：0.055%, Mn：0.36%, Mo：0.042%, Ce：0.00055%,
Enhance skeleton：13%, Mg70.7Zn28Nd1.3Quasi-crystalline substance：0.13%, surplus be iron and inevitable impurity, the enhancing skeleton by
Porous organic matter skeleton and NiZr2It is made, porous organic matter skeleton and NiZr2Mass ratio be 4.8：1；The Al6CuMg4It is accurate
Brilliant grain size is 42 μm, and the aluminum alloy materials are the component of following mass percent：Nb：0.051%, C：0.022%, Mn：
0.52%, Ti:0.32%, Mo:0.3%, Si:0.45-0.5%, V:0.145%, La:0.0052%, surplus Al；
It is kneaded：First nanometer β-SiC powder is mixed with binder in torque rheometer and carries out premix refining, adds aluminum steel
Composite powder is kneaded；The temperature of the pre- mixing is 210 DEG C, and the time being kneaded in advance is 26min, and the rotating speed being kneaded in advance is 52r/
The temperature of min, the mixing are 155 DEG C, and the time of mixing is 4.5h, and the rotating speed of mixing is 62r/min；
Granulation：Raw material after mixing is pelletized in granulator；
Injection：It carries out injecting to obtain injection base using synchronous injection technique；
Remove binder：The binder in injection base is removed using two step degreasing methods；The binder bonds for paraffinic base
Agent, the paraffin based binder are the component of following mass percent：Polypropylene：22.5%, peanut oil：6%, castor oil：
6%, surplus is microcrystalline wax, and the mass ratio of the aluminum steel composite powder quality and binder is 1.42：1；The degreasing includes
Following steps：First step solvent degreasing carries out in methylene chloride；Second step thermal debinding is carried out in tube furnace in argon atmospher；
Sintering cooling：Natural cooling obtains after the injection base for removing binder is sintered in vacuum sintering furnace under argon gas atmosphere
Corrosion-resistant stator, the sintering process are that heating rate is 0.85 DEG C/min, and maximum temperature is 1350 DEG C.
Embodiment 3
Powder processed：First use high-pressure water gas combined atomizing method that the powder of steel alloy is made, then on the basis of alloy steel powder
Aluminum steel composite powder is made again by high-pressure water gas combined atomizing method in upper addition aluminium alloy stock；The aluminum steel composite wood
Expect the mass ratio 2.5 of medium alloy steel and aluminium alloy：1, the alloy steel material is the component of following mass percent：C：1.2%,
Si：0.35%, Ti：0.05%, B：0.06%, Cr：0.06%, Mn：0.37%, Mo：0.045%, Ce：0.0006%, enhancing
Skeleton：15%, Mg70.7Zn28Nd1.3Quasi-crystalline substance：0.135%, surplus is iron and inevitable impurity, and the enhancing skeleton is by more
Hole organic matter skeleton and NiZr2It is made, porous organic matter skeleton and NiZr2Mass ratio be 5：1；The Al6CuMg4Quasi-crystalline substance
Grain size is 45 μm, and the aluminum alloy materials are the component of following mass percent：Nb：0.053%, C：0.025%, Mn：
0.55%, Ti:0.35%, Mo:0.32%, Si:0.48%, V:0.15%, La:0.0055%, surplus Al；
It is kneaded：First nanometer β-SiC powder is mixed with binder in torque rheometer and carries out premix refining, adds aluminum steel
Composite powder is kneaded；The temperature of the pre- mixing is 225 DEG C, and the time being kneaded in advance is 28min, and the rotating speed being kneaded in advance is 55r/
The temperature of min, the mixing are 160 DEG C, and the time of mixing is 4.5h, and the rotating speed of mixing is 65r/min；
Granulation：Raw material after mixing is pelletized in granulator；
Injection：It carries out injecting to obtain injection base using synchronous injection technique；
Remove binder：The binder in injection base is removed using two step degreasing methods；The binder bonds for paraffinic base
Agent, the paraffin based binder are the component of following mass percent：Polypropylene：23%, peanut oil：8%, castor oil：8%,
Surplus is microcrystalline wax, and the mass ratio of the aluminum steel composite powder quality and binder is 1.45：1；The degreasing includes as follows
Step：First step solvent degreasing carries out in methylene chloride；Second step thermal debinding is carried out in tube furnace in argon atmospher；
Sintering cooling：Natural cooling obtains after the injection base for removing binder is sintered in vacuum sintering furnace under argon gas atmosphere
Corrosion-resistant stator, the sintering process are that heating rate is 0.9 DEG C/min, and maximum temperature is 1370 DEG C.
Embodiment 4
Powder processed：First use high-pressure water gas combined atomizing method that the powder of steel alloy is made, then on the basis of alloy steel powder
Aluminum steel composite powder is made again by high-pressure water gas combined atomizing method in upper addition aluminium alloy stock；The aluminum steel composite wood
Expect the mass ratio 2.8 of medium alloy steel and aluminium alloy：1, the alloy steel material is the component of following mass percent：C：1.2%,
Si：0.4%, Ti：0.055%, B：0.065%, Cr：0.065%, Mn：0.38%, Mo：0.048%, Ce：0.00065%, increase
Strong skeleton：17%, Mg70.7Zn28Nd1.3Quasi-crystalline substance：0.14%, surplus is iron and inevitable impurity, and the enhancing skeleton is by more
Hole organic matter skeleton and NiZr2It is made, porous organic matter skeleton and NiZr2Mass ratio be 5.2：1；The Al6CuMg4Quasi-crystalline substance
Grain size be 48 μm, the aluminum alloy materials be following mass percent component：Nb：0.055%, C：0.028%, Mn：
0.58%, Ti:0.38%, Mo:0.38%, Si:0.48%, V:0.155%, La:0.0058%, surplus Al；
It is kneaded：First nanometer β-SiC powder is mixed with binder in torque rheometer and carries out premix refining, adds aluminum steel
Composite powder is kneaded；The temperature of the pre- mixing is 240 DEG C, and the time being kneaded in advance is 28min, and the rotating speed being kneaded in advance is 58r/
The temperature of min, the mixing are 165 DEG C, and the time of mixing is 4.8h, and the rotating speed of mixing is 68r/min；
Granulation：Raw material after mixing is pelletized in granulator；
Injection：It carries out injecting to obtain injection base using synchronous injection technique；
Remove binder：The binder in injection base is removed using two step degreasing methods；The binder bonds for paraffinic base
Agent, the paraffin based binder are the component of following mass percent：Polypropylene：23.5%, peanut oil：9%, castor oil：
9%, surplus is microcrystalline wax, and the mass ratio of the aluminum steel composite powder quality and binder is 1.48：1；The degreasing includes
Following steps：First step solvent degreasing carries out in methylene chloride；Second step thermal debinding is carried out in tube furnace in argon atmospher；
Sintering cooling：Natural cooling obtains after the injection base for removing binder is sintered in vacuum sintering furnace under argon gas atmosphere
Corrosion-resistant stator, the sintering process are that heating rate is 0.95 DEG C/min, and maximum temperature is 1390 DEG C.
Embodiment 5
Powder processed：First use high-pressure water gas combined atomizing method that the powder of steel alloy is made, then on the basis of alloy steel powder
Aluminum steel composite powder is made again by high-pressure water gas combined atomizing method in upper addition aluminium alloy stock；The aluminum steel composite wood
Expect the mass ratio 3 of medium alloy steel and aluminium alloy：1, the alloy steel material is the component of following mass percent：C：1.4%,
Si：0.5%, Ti：0.06%, B：0.07%, Cr：0.07%, Mn：0.39%, Mo：0.05%, Ce：0.0007%, enhance bone
Frame：18%, Mg70.7Zn28Nd1.3Quasi-crystalline substance：0.15%, surplus is iron and inevitable impurity, and the enhancing skeleton is had by porous
Machine object skeleton and NiZr2It is made, porous organic matter skeleton and NiZr2Mass ratio be 5.5：1；The Al6CuMg4The grain of quasi-crystalline substance
Diameter is 50 μm, and the aluminum alloy materials are the component of following mass percent：Nb：0.056%, C：0.03%, Mn：0.6%,
Ti:0.4%, Mo:0.4%, Si:0.5%, V:0.16%, La:0.006%, surplus Al；
It is kneaded：First nanometer β-SiC powder is mixed with binder in torque rheometer and carries out premix refining, adds aluminum steel
Composite powder is kneaded；The temperature of the pre- mixing is 250 DEG C, and the time being kneaded in advance is 30min, and the rotating speed being kneaded in advance is 60r/
The temperature of min, the mixing are 170 DEG C, and the time of mixing is 5h, and the rotating speed of mixing is 70r/min；
Granulation：Raw material after mixing is pelletized in granulator；
Injection：It carries out injecting to obtain injection base using synchronous injection technique；
Remove binder：The binder in injection base is removed using two step degreasing methods；The binder bonds for paraffinic base
Agent, the paraffin based binder are the component of following mass percent：Polypropylene：24%, peanut oil：10%, castor oil：
10%, surplus is microcrystalline wax, and the mass ratio of the aluminum steel composite powder quality and binder is 1.5：1；The degreasing includes
Following steps：First step solvent degreasing carries out in methylene chloride；Second step thermal debinding is carried out in tube furnace in argon atmospher；
Sintering cooling：Natural cooling obtains after the injection base for removing binder is sintered in vacuum sintering furnace under argon gas atmosphere
Corrosion-resistant stator, the sintering process are that heating rate is 1 DEG C/min, and maximum temperature is 1400 DEG C.
Embodiment 6
With differing only in for embodiment 3, enhancing skeleton is only by porous organic matter skeleton in the corrosion-resistant stator of the embodiment
Composition, other are same as Example 3, and details are not described herein again.
Embodiment 7
With differing only in for embodiment 3, enhancing skeleton is only by NiZr in the embodiment highly stressed rotor2Composition, other
Same as Example 3, details are not described herein again.
Embodiment 8
With differing only in for embodiment 3, in the enhancing skeleton of the corrosion-resistant stator of the embodiment porous organic matter skeleton and
NiZr2Mass ratio be 4.3：1, other are same as Example 3, and details are not described herein again.
Embodiment 9
With differing only in for embodiment 3, in the enhancing skeleton of the corrosion-resistant stator of the embodiment porous organic matter skeleton and
NiZr2Mass ratio be 5.7：1, other are same as Example 3, and details are not described herein again.
Embodiment 10
With differing only in for embodiment 3, the Mg of the corrosion-resistant stator of the embodiment70.7Zn28Nd1.3The grain size of quasi-crystalline substance is 38 μ
M, other are same as Example 3, and details are not described herein again.
Embodiment 11
With differing only in for embodiment 3, the Mg of the corrosion-resistant stator of the embodiment70.7Zn28Nd1.3The grain size of quasi-crystalline substance is 52 μ
M, other are same as Example 3, and details are not described herein again.
Embodiment 12
With differing only in for embodiment 3, the corrosion-resistant stator of the embodiment prepared using common common smelting process and
At other are same as Example 3, and details are not described herein again.
Embodiment 13
With differing only in for embodiment 3, the corrosion-resistant stator of the embodiment in preparation process simultaneously be made aluminium alloy and
The composite powder of steel alloy, other are same as Example 3, and details are not described herein again.
Embodiment 14
With differing only in for embodiment 3, the corrosion-resistant stator of the embodiment is in preparation process that nanometer β-SiC are not added
Powder, other are same as Example 3, and details are not described herein again.
Embodiment 15
Grain size with differing only in for embodiment 3, the corrosion-resistant stator nanometer β-SiC powder of the embodiment is 8nm, other
Same as Example 3, details are not described herein again.
Embodiment 16
Grain size with differing only in for embodiment 3, the corrosion-resistant stator nanometer β-SiC powder of the embodiment is 17nm,
He is same as Example 3, and details are not described herein again.
Embodiment 17
With differing only in for embodiment 3, the corrosion-resistant stator of the embodiment is in preparation process simultaneously by nanometer β-SiC powder
Body, binder, aluminum steel composite powder are kneaded, other are same as Example 3, and details are not described herein again.
Embodiment 18
With differing only in for embodiment 3, the corrosion-resistant stator of the embodiment is taken off in preparation process using a step degreasing method
Except binder, other are same as Example 3, and details are not described herein again.
Embodiment 19
With differing only in for embodiment 3, the binder used in the corrosion-resistant stator preparation process of the embodiment is common
Binder, other are same as Example 3, and details are not described herein again.
Embodiment 20
With differing only in for embodiment 3, the binder that the corrosion-resistant stator of the embodiment uses in preparation process is general
Logical paraffin, rather than microcrystalline wax, other are same as Example 3, and details are not described herein again.
Comparative example 1
With differing only in for embodiment 3, the corrosion-resistant stator of the comparative example is made of common common alloy steel material,
He is same as Example 3, and details are not described herein again.
Comparative example 2
With differing only in for embodiment 3, the corrosion-resistant stator of the comparative example is only prepared by alloy steel material, other with
Embodiment 3 is identical, and details are not described herein again.
Comparative example 3
Without enhancing bone in the alloy steel material formed with differing only in for embodiment 3, the corrosion-resistant stator of the comparative example
Frame, other are same as Example 3, and details are not described herein again.
Comparative example 4
Do not have in the alloy steel material formed with differing only in for embodiment 3, the corrosion-resistant stator of the comparative example
Mg70.7Zn28Nd1.3Quasi-crystalline substance, other are same as Example 3, and details are not described herein again.
Comparative example 5
Without enhancing bone in the alloy steel material formed with differing only in for embodiment 3, the corrosion-resistant stator of the comparative example
Frame and Mg70.7Zn28Nd1.3Quasi-crystalline substance, other are same as Example 3, and details are not described herein again.
Performance detection, testing result such as table 1 are carried out to the corrosion-resistant stator that above-described embodiment 1-20 and comparative example 1-5 are obtained
It is shown：
Table 1：The performance test results of corrosion-resistant stator in embodiment 1-20 and comparative example 1-5
Corrosion resistance data in table are that product surface the time of apparent corrosion trace occurs.
It can be seen from the results above that the corrosion-resistant stator of the present invention is prepared by aluminum alloy materials and alloy steel material,
It can be superimposed the intensity and corrosion resistance of the two, enhancing skeleton energy is added in the intensity of the stator improved in steel alloy
The steel alloy enough made has high fusing point and intensity；Meanwhile the present invention adds aluminium using alloy steel powder is first prepared
Alloy raw material prepares the technique of aluminum steel composite powder jointly, and the quasi-crystalline substance wherein contained in alloy steel powder and enhancing skeleton can be by
Other raw materials in secondary-atomizing, with steel alloy have sufficient co-operative effect, ensure stator in subsequent injection process
Intensity and surface roughness.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can do various modifications or supplement to described specific embodiment or substitute by a similar method, but simultaneously
The spirit or beyond the scope defined by the appended claims of the present invention is not deviated by.
It is skilled to this field although present invention has been described in detail and some specific embodiments have been cited
For technical staff, as long as it is obvious that can make various changes or correct without departing from the spirit and scope of the present invention.
Claims (10)
1. a kind of corrosion-resistant stator, which is characterized in that the corrosion-resistant stator is prepared by aluminum steel composite material, the aluminum steel
The mass ratio (2-3) of composite material medium alloy steel and aluminium alloy：1, the alloy steel material is the component of following mass percent：
C：0.8-1.4%, Si：0.2-0.5%, Ti：0.04-0.06%, B：0.05-0.07%, Cr：0.05-0.07%, Mn：0.35-
0.39%, Mo：0.04-0.05%, Ce：0.0005-0.0007% enhances skeleton：12-18%, Mg70.7Zn28Nd1.3Quasi-crystalline substance：
0.12-0.15%, surplus are iron and inevitable impurity.
2. a kind of corrosion-resistant stator according to claim 1, which is characterized in that the enhancing skeleton is by porous organic matter bone
Frame and NiZr2It is made.
3. a kind of corrosion-resistant stator according to claim 2, which is characterized in that the porous organic matter skeleton and NiZr2's
Mass ratio is 4.5-5.5：1.
4. a kind of corrosion-resistant stator according to claim 1, which is characterized in that the Mg70.7Zn28Nd1.3The grain size of quasi-crystalline substance
It is 40-50 μm.
5. a kind of preparation method of corrosion-resistant stator as described in claim 1, which is characterized in that the preparation method is specifically wrapped
Include following steps：
Powder processed：It first uses high-pressure water gas combined atomizing method that the powder of steel alloy is made, then adds on the basis of alloy steel powder
Enter aluminium alloy stock, aluminum steel composite powder is made again by high-pressure water gas combined atomizing method；
It is kneaded：First nanometer β-SiC powder is mixed with binder in torque rheometer and carries out premix refining, it is compound to add aluminum steel
Powder is kneaded；
Granulation：Raw material after mixing is pelletized in granulator；
Injection：It carries out injecting to obtain injection base using synchronous injection technique；
Remove binder：The binder in injection base is removed using two step degreasing methods；
Sintering cooling：Natural cooling obtains corrosion resistant after the injection base for removing binder is sintered in vacuum sintering furnace under argon gas atmosphere
Lose stator.
6. a kind of preparation method of corrosion-resistant stator according to claim 5, which is characterized in that the nanometer β-SiC powder
The quality of body is the 0.7-0.8% of aluminum steel composite powder quality.
7. a kind of preparation method of corrosion-resistant stator according to claim 6, which is characterized in that the nanometer β-SiC powder
The grain size of body is 10-15nm.
8. a kind of preparation method of corrosion-resistant stator according to claim 5, which is characterized in that the binder is paraffin
Based binder, the paraffin based binder are the component of following mass percent：Polypropylene：22-24%, peanut oil：5-10%,
Castor oil：5-10%, surplus are microcrystalline wax.
9. a kind of preparation method of corrosion-resistant stator according to claim 5, which is characterized in that the aluminum steel composite powder
The mass ratio of quality and binder is 1.4-1.5：1.
10. a kind of preparation method of corrosion-resistant stator according to claim 5, which is characterized in that the degreasing includes such as
Lower step：First step solvent degreasing carries out in methylene chloride；Second step thermal debinding is carried out in tube furnace in argon atmospher.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810661661.7A CN108788160A (en) | 2018-06-25 | 2018-06-25 | A kind of corrosion-resistant stator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810661661.7A CN108788160A (en) | 2018-06-25 | 2018-06-25 | A kind of corrosion-resistant stator |
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ID=64071065
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2018
- 2018-06-25 CN CN201810661661.7A patent/CN108788160A/en active Pending
Non-Patent Citations (5)
| Title |
|---|
| A.劳莱 艾伦 劳利: "《高性能粉末冶金译文集》", 28 February 1982 * |
| 吴玉程: "《工程材料基础》", 31 December 2014 * |
| 李宗全，陈湘明: "《材料结构与性能》", 31 July 2001 * |
| 王娜 等: "NiZr和NiZr2共晶温度的测定", 《材料热处理学报》 * |
| 美国金属学会: "《金属手册 粉末冶金》", 30 June 1994 * |
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Application publication date: 20181113 |