CN105256215B - A kind of Fe-based amorphous and nanometer crystal alloy forming method - Google Patents
A kind of Fe-based amorphous and nanometer crystal alloy forming method Download PDFInfo
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Abstract
The invention discloses a kind of Fe-based amorphous and nanometer crystal alloy forming method, belong to material increasing field.Fe-based amorphous mixed-powder or nanometer crystal alloy mixed-powder are prepared into by base substrate using micro-injection molding bonded method, then sintered body obtains product.Uniformly binding agent is mixed with Fe-based amorphous mixed-powder or nanometer crystal alloy mixed-powder.The temperature that sintering is used is higher than 5 DEG C~10 DEG C of the fusing point of binding agent, while less than iron-based amorphous powder phase transition temperature or nanometer crystal alloy powder phase transition temperature.The inventive method can be used for preparing that big-size complicated shape is block Fe-based amorphous and nanometer crystal alloy product.
Description
Technical field
The invention belongs to material increasing field, and in particular to a kind of Fe-based amorphous and nanometer crystal alloy micro-injection is bonded to
Type method.
Background technology
Micro-injection bonding technology is also known as droplet ejection technology and three-dimensional spray printing (Three-dimensional Printing),
It is one kind of increases material manufacturing technology.It is cut into slices the threedimensional model of part using computer, powder is paved into thin layer, according to section
Profile utilizes the motion of shower nozzle, and drop is selectively injected on thin layer, will be selected by the comprehensive function of liquid and solid powder
Fixed regions curing shaping, repeats said process, until completing the shaping of part.It uses discrete, accumulation molding principle, borrows
Computer aided design and manufacture is helped, is three by solid powder material direct forming in the case of without any moulds of industrial equipment
Entity component is tieed up, is not influenceed by drip molding complexity.With forming speed is fast, moulding material type is extensive, equipment cost
And the low advantage of operating cost.
Fe-based amorphous and nanometer crystal alloy has high saturated magnetic induction, high permeability, low-loss and excellent temperature
Stability, available for fields such as transformer, amplifier, choke, inductance, has in functional material and Structural Engineering Material Field
It is widely applied prospect.
In practical engineering application, when being wound into magnetic core with strip, because winding space is big, consistency is low, and layer with
There is substantial amounts of air between layer, the reduction of magnetic flux density certainly will be caused, leakage field is big, significantly reduces magnetic core output performance.And
For high-performance, the motor of miniaturization, core material is not only needed while having high saturated magnetic induction etc. excellent soft
Magnetic property, and also need to complex-shaped block materials to meet the requirement of acquisition special space magnetic circuit distribution.It is Fe-based amorphous
And the preparation of nanocrystalline alloy block material is just particularly important.
Existing Fe-based amorphous and nanometer crystal alloy manufacturing process mainly has：Inert gases agglomeration original position press molding
Method, mechanical alloy grinding (Mechanical Alloying) combine the blocking method of pressurizeing, discharge plasma sintering, copper mold casting method,
Severe Plastic Deformation Methods, superelevation are molded.
However, the Fe-based amorphous and nanocrystalline alloy block material complex process that the above method is prepared at present, shape
The single product for being difficult to prepare complicated shape, which greatly limits Fe-based amorphous and nanometer crystal alloy application.Therefore,
Need to develop new forming method or equipment, so that the block Fe-based amorphous and nanocrystalline of big-size complicated shape can be prepared
Alloy soft magnetic material.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides a kind of to overcome prior art not
Foot, it is an object of the invention to provide a kind of Fe-based amorphous and nanometer crystal alloy micro-injection molding bonded method, can be used for
Prepare that big-size complicated shape is block Fe-based amorphous and nanometer crystal alloy.
To achieve the above object, according to one aspect of the present invention, there is provided a kind of Fe-based amorphous and nanometer crystal alloy
Forming method, it is characterised in that mixed Fe-based amorphous mixed-powder or nanometer crystal alloy using micro-injection molding bonded method
Powder is prepared into base substrate, and then sintered body obtains product.
The Fe-based amorphous mixed-powder or nanometer crystal alloy mixed-powder refer to the Fe-based amorphous powder for being mixed with binding agent
End or the nanometer crystal alloy powder for being mixed with binding agent.
In above inventive concept, binding agent effect is to aid in iron-based amorphous powder or nanometer crystal alloy powder compacting.
Further, the micro-injection molding bonded method specifically includes following steps：
S1：First, iron-based amorphous powder or nanometer crystal alloy powder are performed into mechanical mixture with binding agent, then added again
Enter additive and perform mechanical mixture；Or
Using solvent precipitation by binding agent overlay film on iron-based amorphous powder or nanometer crystal alloy powder surface, then again
Add additive and perform mechanical mixture；
Fe-based amorphous mixed-powder or nanometer crystal alloy mixed-powder are obtained,
The additive is polyethylene glycol or liquid lecithin；
S2：Using liquid binding liquid, using micro-injection molding bonded method by Fe-based amorphous mixed-powder or nanocrystalline conjunction
Golden mixed-powder is prepared into thickness and is not more than the base substrate that 0.3mm stack of thin is bonded.
In above inventive concept, step S2 can be specially for example：Will be above-mentioned Fe-based amorphous mixed using micro-injection stamping device
Close powder or nanometer crystal alloy mixed-powder is laid to thin layer in working cylinder, and control printing head motion according in computer
Section profile information injection liquid-containing binder, print after one layer working cylinder and has declined a thickness, repeatedly said process, successively
Accumulate the shaping until completing whole part.The effect of binding agent is to produce cementation with liquid-containing binder reaction, is helped into
Parison body.Additive is to provide faint cohesive force in forming process, prevent buckling deformation occur during powdering.
Further, the temperature that the sintering is used is higher than 5~10 DEG C of the fusing point of binding agent in powder, while less than iron-based
Amorphous powder phase transition temperature or nanometer crystal alloy powder phase transition temperature, so that the product obtained after sintering remains in that amorphous structure
Or nanometer crystal microstructure.Sintering is in order that binding agent melting and refreezing is solid so that iron-based amorphous powder or nanometer crystal alloy powder
End bonding is more abundant.In Practical Project, sintering process, which can be used, to be rapidly heated to sintering temperature and is incubated 1~4h and cold with stove
But come out of the stove to room temperature.
Further, the average grain diameter of iron-based amorphous powder or the nanometer crystal alloy powder is 50 μm~80 μm.Iron-based
The average grain diameter of amorphous powder or nanometer crystal alloy powder is preferably 60 μm~70 μm, now with preferable mobility and can be into
Shape.
Further, in step S2, the thickness of the thin layer is preferably 0.1mm~0.2mm.Experiment proof, thickness of thin layer
Within the range, molded part has higher forming accuracy and intensity.
Further, in step S1, the binding agent is polyvinyl alcohol or maltodextrin, and the quality of the binding agent is
The 2%~15% of iron-based amorphous powder quality or nanometer crystal alloy powder quality.Further preferred, the matter of the binding agent
Measure 6%~10% for iron-based amorphous powder quality or nanometer crystal alloy powder quality.
Further, in step S1, the additive quality is iron-based amorphous powder quality or nanometer crystal alloy powder matter
The 0.1%~2% of amount.Further preferred, the additive quality is iron-based amorphous powder quality or nanometer crystal alloy powder
The 0.8%~1.5% of last quality.
Further, the liquid binding liquid in step S2 is aqueous binder liquid, viscosity, table according to shower nozzle to liquid
The requirement of the parameters such as face tension force is prepared, in Practical Project, because printing device is different, to the parameter request of binding liquid not
Together, the percentage that the composition and each composition that for example a kind of preferred liquid binding liquid includes account for gross mass is respectively：
0.5%~2.0% polyethylene glycol
1.0%~2.0% polyvinylpyrrolidone
0.5%~2.0% cetyl trimethylammonium bromide or neopelex
The deionized water of surplus.
In the present invention, Fe-based amorphous or nanometer crystal alloy band is first smashed and powder is made, micro-injection molding bonded is utilized
Method shaping obtains base substrate, then base substrate is sintered, by controlling sintering temperature and time so that Fe-based amorphous or nanocrystalline
The institutional framework of alloy is constant, remains as amorphousness either nanocrystalline form, and sintering simply makes Fe-based amorphous or nanometer
Mixed-powder bonding is more firm between peritectic alloy particle, so as to obtain certain mechanical property.The inventive method is especially suitable for preparing
The larger feature of complicated shape block volume is Fe-based amorphous or nanometer crystal alloy product.
In general, Fe-based amorphous and nanometer crystal alloy soft magnetic materials is shaped as a result of micro-injection bonding technology,
Following beneficial effect can be obtained：
1st, using micro-injection bonding technology forming iron-base amorphous or nanometer crystal alloy, on the one hand, can according to size and
The requirement of shape shapes Fe-based amorphous and nanometer crystal alloy block, so as to widen Fe-based amorphous and nanometer crystal alloy application model
Enclose；On the other hand, the Fe-based amorphous and nanometer crystal alloy product that micro-injection bonding technology is shaped can be directly used for industrial requirement,
It need not be machined out, retain Fe-based amorphous and nanometer crystal alloy powder primary characteristic, will not be because of forming technology control not
The problems such as there is demagnetization.
2nd, Fe-based amorphous and nanometer crystal alloy technique is prepared relative to tradition, micro-injection bonding technology enormously simplify into
Shape technique, it is possible to achieve the Non-mould shaping of Complex Parts, can expeditiously be prepared for the Fe-based amorphous of large scale and complicated shape
And nanometer crystal alloy application, had broad application prospects in terms of commercial Application.
Brief description of the drawings
Fig. 1 is the specific schematic flow sheet of the inventive method.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Not constituting conflict each other can just be mutually combined.
The core of the inventive method is：Using micro-injection molding bonded method by Fe-based amorphous mixed-powder or nanocrystalline conjunction
Golden mixed-powder is prepared into base substrate, and then sintered body obtains product.Fig. 1 is the idiographic flow schematic diagram of the inventive method, by
Figure understands that the inventive method specifically may include three big steps, and Fe-based amorphous mixed-powder or nanometer crystal alloy mixing are prepared first
Powder, then Fe-based amorphous mixed-powder or nanometer crystal alloy mixed-powder are prepared into by base using micro-injection molding bonded method
Body, last sintered body obtains product.
Embodiment 1
Fe-based amorphous and nanometer crystal alloy forming method in the present embodiment, comprises the following steps：
S1：The iron-based amorphous powder 500g that average grain diameter is 50 μm~80 μm is filtered out, using the method system of mechanical ball mill
Standby Fe-based amorphous mixed-powder.The mechanical mixture 6h in ball mill by iron-based amorphous powder and 10g polyvinyl alcohol, it is to be mixed uniform
Afterwards, 0.5g polyethylene glycol liquid additives are added, then continue to perform mixing in ball mill, Fe-based amorphous mixed powder is obtained
End.In the present embodiment, the additive quality is the 0.1% of iron-based amorphous powder quality.The quality of the binding agent is iron-based
The 2% of amorphous powder quality.
S2：Micro-injection bonding liquid binder liquid is prepared first, by 0.5g polyethylene glycol, 2g polyvinylpyrrolidones,
0.5g cetyl trimethylammonium bromides and 97g deionized waters are added to be uniformly mixed in container with glass bar, you can obtained
The liquid binder liquid of micro-injection bonding is obtained, wherein, the total mass ratio of polyethylene glycol and liquid binder liquid is 0.5:100, poly- second
Alkene pyrrolidone is 2 with liquid binder liquid total mass ratio:100, cetyl trimethylammonium bromide and liquid binder liquid gross mass
Than for 0.5:100, i.e., the composition and each composition that liquid binding liquid includes described in the present embodiment account for liquid binding liquid total mass ratio
Respectively：0.5% polyethylene glycol, 2.0% polyvinylpyrrolidone, 0.5% cetyl trimethylammonium bromide, surplus
For deionized water.
Micro-injection bonding technology is three-dimensional spray printing or referred to as 3D printing, is one kind of increases material manufacturing technology, it is necessary to profit
The cross section profile data of product base substrate are calculated with computer, the cross section profile data in computer will be above-mentioned Fe-based amorphous
Mixed-powder is paved into 0.1mm thickness layer, spurts into mixed-powder liquid binding liquid using micro-injection stamping device, makes iron-based
Amorphous particle mutually bonding forms first layer.The second layer is shaped with same side's operation on the first layer, repeat this process until
Whole part is molded completely., will be Fe-based amorphous mixed using micro-injection molding bonded method using liquid binding liquid i.e. in this step
Close powder and be prepared into the base substrate that the thin and thick that thickness is 0.1mm stacks bonding.
S3：By the clear powder of part after shaping, sintering is then performed to the base substrate, the temperature that the sintering is used is higher than powder
5 DEG C~10 DEG C of the fusing point of binding agent in end, while iron-based amorphous powder phase transition temperature need to be less than, so that the product obtained after sintering
Amorphous structure is remained in that while the fusing point of binding agent in powder should be slightly above, sintering process is used and is rapidly heated to sintering temperature
And be incubated 1h~4h and cool to room temperature with the furnace and come out of the stove.Specific in this implementation, sintering process is to be put into the product after clear powder
It is rapidly heated in baking oven to 201 DEG C and is incubated 4h, furnace cooling is come out of the stove to room temperature.Its sintering temperature is less than Fe-based amorphous phase transformation
In temperature, the present embodiment, the phase transition temperature of the iron-based amorphous powder of use is at 552.48 DEG C, and the fusing point of polyvinyl alcohol is 196 DEG C.
Embodiment 2
S1：The powder iron-base nanometer crystal alloy 500g that average grain diameter is 60 μm~70 μm is filtered out, using mechanical ball mill
Method prepares nanometer crystal alloy mixed-powder, by nanometer crystal alloy powder and 30g polyvinyl alcohol mechanical mixture in ball mill
6.5h, it is to be mixed it is uniform after, add 4.0g polyethylene glycol liquid additives, then continue to perform mixing in ball mill, obtain
Obtain nanometer crystal alloy mixed-powder.In the present embodiment, the binding agent quality is the 6% of nanometer crystal alloy powder quality.It is described
The quality of additive is the 0.8% of nanometer crystal alloy powder quality.
S2：Micro-injection bonding liquid binder liquid is prepared first, by 1.0g polyethylene glycol, 1.5g polyvinylpyrrolidones,
1.0g cetyl trimethylammonium bromides and 96.5g deionized waters are added to be uniformly mixed in container with glass bar, you can
The liquid binder liquid of micro-injection bonding is obtained, wherein, the total mass ratio of polyethylene glycol and liquid binder liquid is 1.0:100, gather
Vinylpyrrolidone is 1.5 with liquid binder liquid total mass ratio:100, cetyl trimethylammonium bromide and liquid binder liquid are total
Mass ratio is 1.0:100, i.e., the composition and each composition that liquid binding liquid includes described in the present embodiment account for the total matter of liquid binding liquid
Measuring ratio is respectively：1% polyethylene glycol, 1.5% polyvinylpyrrolidone, 1.0% cetyl trimethylammonium bromide is remaining
Measure as deionized water.
Micro-injection bonding technology is three-dimensional spray printing or referred to as 3D printing, is one kind of increases material manufacturing technology, it is necessary to profit
The cross section profile data of product base substrate, the cross section profile data in computer, by above-mentioned nanocrystalline conjunction are calculated with computer
Golden mixed-powder is paved into 0.18mm thickness layer, spurts into mixed-powder liquid binding liquid using micro-injection stamping device, makes
Nanometer crystal alloy particle mutually bonding forms first layer.The second layer is shaped with same side's operation on the first layer, this mistake is repeated
The whole parts of Cheng Zhizhi are molded completely.I.e. in this step, using liquid binding liquid, using micro-injection molding bonded method by nanometer
Peritectic alloy mixed-powder is prepared into the thin and thick that thickness is 0.18mm and stacks the base substrate bonded.
S3：By the clear powder of part after shaping, sintering is then performed to the base substrate, the temperature that the sintering is used is higher than powder
5 DEG C~10 DEG C of the fusing point of binding agent in end, while the last phase transition temperature of iron based nano crystal crystalline flour need to be less than, so as to obtained after sintering
It is nanometer crystal microstructure that product, which is remained in that, while should be slightly above the fusing point of binding agent in powder, sintering process is used and is rapidly heated
To sintering temperature and it is incubated 1h~4h and cools to room temperature with the furnace and come out of the stove.Specific in this implementation, sintering process is by after clear powder
Product be put into baking oven and be rapidly heated to 202 DEG C and be incubated 3h, furnace cooling is come out of the stove to room temperature.Its sintering temperature is less than iron-based
In the phase transition temperature of amorphous, the present embodiment, the phase transition temperature of the iron-based amorphous powder of use at 508.2 DEG C, polyvinyl alcohol it is molten
Point is 196 DEG C.
Embodiment 3
Fe-based amorphous and nanometer crystal alloy forming method in the present embodiment, comprises the following steps：
S1：Filter out the iron-based amorphous powder 500g that average grain diameter is 50 μm~80 μm and prepare iron using solvent precipitation methods
Base amorphous powder, by 50g maltodextrins by solvent precipitation overlay film on iron-based amorphous powder surface, it is to be mixed it is uniform after,
7.5g polyethylene glycol liquid additives are added, then continue to perform mixing in ball mill, Fe-based amorphous mixed-powder is obtained.
In the present embodiment, the additive quality is the 1.5% of iron-based amorphous powder quality.The quality of the binding agent is Fe-based amorphous
The 10% of powder quality quality.
S2：Micro-injection bonding liquid binder liquid is prepared first, by 1.5g polyethylene glycol, 1.2g polyvinylpyrrolidones,
1.5g cetyl trimethylammonium bromides and 95.8g deionized waters are added to be uniformly mixed in container with glass bar, you can
The liquid binder liquid of micro-injection bonding is obtained, wherein, the total mass ratio of polyethylene glycol and liquid binder liquid is 1.5:100, gather
Vinylpyrrolidone is 1.2 with liquid binder liquid total mass ratio:100, cetyl trimethylammonium bromide and liquid binder liquid are total
Mass ratio is 1.5:100, i.e., the composition and each composition that liquid binding liquid includes described in the present embodiment account for the total matter of liquid binding liquid
Measuring ratio is respectively：1.5% polyethylene glycol, 1.2% polyvinylpyrrolidone, 1.5% cetyl trimethylammonium bromide,
Surplus is deionized water.
Micro-injection bonding technology is three-dimensional spray printing or referred to as 3D printing, is one kind of increases material manufacturing technology, it is necessary to profit
The cross section profile data of product base substrate are calculated with computer, the cross section profile data in computer will be above-mentioned Fe-based amorphous
Mixed-powder is paved into 0.2mm thickness layer, spurts into mixed-powder liquid binding liquid using micro-injection stamping device, makes iron-based
Amorphous particle mutually bonding forms first layer.The second layer is shaped with same side's operation on the first layer, repeat this process until
Whole part is molded completely., will be Fe-based amorphous mixed using micro-injection molding bonded method using liquid binding liquid i.e. in this step
Close powder and be prepared into the base substrate that the thin and thick that thickness is 0.2mm stacks bonding.
S3：By the clear powder of part after shaping, sintering is then performed to the base substrate, the temperature that the sintering is used is higher than powder
5 DEG C~10 DEG C of the fusing point of binding agent in end, while iron-based amorphous powder phase transition temperature need to be less than, so that the product obtained after sintering
Amorphous structure is remained in that while the fusing point of binding agent in powder should be slightly above, sintering process is used and is rapidly heated to sintering temperature
And be incubated 1h~4h and cool to room temperature with the furnace and come out of the stove.Specific in this implementation, sintering process is to be put into the product after clear powder
It is rapidly heated in baking oven to 204 DEG C and is incubated 2h, furnace cooling is come out of the stove to room temperature.Its sintering temperature is less than Fe-based amorphous phase transformation
In temperature, the present embodiment, the phase transition temperature of the iron-based amorphous powder of use is at 552.48 DEG C, and the fusing point of maltodextrin is 240
℃。
Embodiment 4
Fe-based amorphous and nanometer crystal alloy forming method in the present embodiment, comprises the following steps：
S1：The iron based nano crystal powder 500g that average grain diameter is 60 μm~70 μm is filtered out, using solvent precipitation methods system
Standby iron based nano crystal powder, by 75g polyvinyl alcohol by solvent precipitation overlay film on iron-based amorphous powder surface, it is to be mixed equal
After even, 10g polyethylene glycol liquid additives are added, then continue to perform mixing in ball mill, Fe-based amorphous mixing is obtained
Powder.In the present embodiment, the additive quality is the 2% of iron-based amorphous powder quality.The quality of the binding agent is iron-based
The 15% of nanometer crystal alloy powder quality.
S2：Micro-injection bonding liquid binder liquid is prepared first, by 2g polyethylene glycol, 1g polyvinylpyrrolidones, 2g ten
Dialkyl benzene sulfonic acids sodium and 95g deionized waters are added to be uniformly mixed in container with glass bar, you can is obtained micro-injection and is glued
The liquid binder liquid of knot, wherein, the total mass ratio of polyethylene glycol and liquid binder liquid is 2:100, polyvinylpyrrolidone with
Liquid binder liquid total mass ratio is 1:100, neopelex is 2 with liquid binder liquid total mass ratio:100, i.e. this reality
Apply the composition and each composition that liquid binding liquid described in example includes and account for liquid binding liquid total mass ratio and be respectively：2% poly- second two
Alcohol, 1% polyvinylpyrrolidone, 2.0% neopelex, surplus is deionized water.
Micro-injection bonding technology is three-dimensional spray printing or referred to as 3D printing, is one kind of increases material manufacturing technology, it is necessary to profit
The cross section profile data of product base substrate are calculated with computer, the cross section profile data in computer will be above-mentioned Fe-based amorphous
Mixed-powder is paved into 0.29mm thickness layer, spurts into mixed-powder liquid binding liquid using micro-injection stamping device, makes iron
Base nanometer crystal particle mutually bonding forms first layer.The second layer is shaped with same side's operation on the first layer, this process is repeated
Until whole part is molded completely.I.e. in this step, using liquid binding liquid, iron-based is received using micro-injection molding bonded method
The brilliant mixed-powder of rice is prepared into the thin and thick that thickness is 0.29mm and stacks the base substrate bonded.
S3：By the clear powder of part after shaping, sintering is then performed to the base substrate, the temperature that the sintering is used is higher than powder
5 DEG C~10 DEG C of the fusing point of binding agent in end, while the last phase transition temperature of iron based nano crystal crystalline flour need to be less than, so as to obtained after sintering
It is nanometer crystal microstructure that product, which is remained in that, while should be slightly above the fusing point of binding agent in powder, sintering process is used and is rapidly heated
To sintering temperature and it is incubated 1~4h and cools to room temperature with the furnace and come out of the stove.Specific in this implementation, sintering process is by after clear powder
Product, which is put into baking oven, to be rapidly heated to 206 DEG C and is incubated 1h, and furnace cooling is come out of the stove to room temperature.It is non-that its sintering temperature is less than iron-based
In brilliant phase transition temperature, the present embodiment, the phase transition temperature of the iron-based amorphous powder of use is in 508.2 DEG C, the fusing point of polyvinyl alcohol
For 196 DEG C.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention etc., it all should include
Within protection scope of the present invention.
Claims (7)
1. a kind of Fe-based amorphous and nanometer crystal alloy forming method, it is characterised in that will using micro-injection molding bonded method
Fe-based amorphous mixed-powder or nanometer crystal alloy mixed-powder is prepared into base substrate, and then sintered body obtains product,
The Fe-based amorphous mixed-powder or nanometer crystal alloy mixed-powder refer to the Fe-based amorphous powder for being uniformly mixed with binding agent
End or the uniform nanometer crystal alloy powder for being mixed with binding agent,
The temperature that the sintering is used is higher than 5 DEG C~10 DEG C of the fusing point of the binding agent, while less than iron-based amorphous powder phase transformation
Temperature or nanometer crystal alloy powder phase transition temperature, so that the product obtained after sintering remains in that amorphousness tissue or received
The brilliant morphology and history of rice.
2. a kind of Fe-based amorphous and nanometer crystal alloy forming method as claimed in claim 1, it is characterised in that micro- spray
Penetrate molding bonded method and specifically include following steps：
S1：First, iron-based amorphous powder or nanometer crystal alloy powder are performed into mechanical mixture with binding agent, is added followed by and adds
Plus agent performs mechanical mixture；Or
Binding agent overlay film is added followed by iron-based amorphous powder or nanometer crystal alloy powder surface using solvent precipitation
Additive performs mechanical mixture；
Fe-based amorphous mixed-powder or nanometer crystal alloy mixed-powder are obtained,
The additive is polyethylene glycol or liquid lecithin；
S2：Using liquid binding liquid, Fe-based amorphous mixed-powder or nanometer crystal alloy are mixed using micro-injection molding bonded method
Close powder and be prepared into the base substrate that thickness is not more than 0.3mm stack of thin bonding.
3. a kind of Fe-based amorphous and nanometer crystal alloy forming method as claimed in claim 2, it is characterised in that the iron-based
The average grain diameter of amorphous powder or nanometer crystal alloy powder is 50 μm~80 μm.
4. a kind of Fe-based amorphous and nanometer crystal alloy forming method as claimed in claim 3, it is characterised in that step S2
In, the thickness of the thin layer is 0.1mm~0.2mm.
5. a kind of Fe-based amorphous and nanometer crystal alloy forming method as claimed in claim 4, it is characterised in that step S1
In, the binding agent is polyvinyl alcohol or maltodextrin, and the quality of the binding agent is iron-based amorphous powder quality or nanometer
The 2%~15% of peritectic alloy powder quality.
6. a kind of Fe-based amorphous and nanometer crystal alloy forming method as claimed in claim 5, it is characterised in that step S1
In, the additive quality is the 0.1%~2% of iron-based amorphous powder quality or nanometer crystal alloy powder quality.
7. a kind of Fe-based amorphous and nanometer crystal alloy forming method as claimed in claim 6, it is characterised in that in step S2
The composition that includes of the liquid binding liquid and each composition account for the percentage of liquid binding liquid gross mass and be respectively：
0.5%~2.0% polyethylene glycol
1.0%~2.0% polyvinylpyrrolidone
0.5%~2.0% cetyl trimethylammonium bromide or neopelex
The deionized water of surplus.
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| CN105256215A (en) | 2016-01-20 |
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