CN105714174A - Pure iron-series magnetically soft alloy prepared by using powder injection molding process and method - Google Patents
Pure iron-series magnetically soft alloy prepared by using powder injection molding process and method Download PDFInfo
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- CN105714174A CN105714174A CN201610235348.8A CN201610235348A CN105714174A CN 105714174 A CN105714174 A CN 105714174A CN 201610235348 A CN201610235348 A CN 201610235348A CN 105714174 A CN105714174 A CN 105714174A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0207—Using a mixture of prealloyed powders or a master alloy
- C22C33/0214—Using a mixture of prealloyed powders or a master alloy comprising P or a phosphorus compound
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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
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/102—Metallic powder coated with 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
- 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
- B22F1/103—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing an organic binding agent comprising a mixture of, or obtained by reaction of, two or more components other than a solvent or a lubricating agent
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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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/14708—Fe-Ni based alloys
- H01F1/14733—Fe-Ni based alloys in the form of particles
- H01F1/14741—Fe-Ni based alloys in the form of particles pressed, sintered or bonded together
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- Electromagnetism (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a method for preparing a pure iron-series magnetically soft alloy by using a powder injection molding process. The method comprises the following steps: (S1) carbonyl iron powder and Ni-P alloy powder are uniformly mixed to form a mixture, wherein the content of P in the Ni-P alloy powder is 5-25 wt%, and the content of P is 0.2-1.0 wt% of the total weight of the mixture; (S2) the mixture and adhesive are mixed at 135-145 DEG C to obtain a feed with rheological property, wherein the volume ratio of the mixture to the adhesive is 55-65: 40; (S3) the feed is injected in a mold by an injection molding machine to prepare an pure iron-series blank with a predetermined shape; (S4) the adhesive in the pure iron-series blank is removed; and (S5) the product, obtained in the step (S4), is sintered by 0.5-8 hours at a temperature of 1100-1300 DEG C in a hydrogen atmosphere. The invention further relates to the pure iron-series magnetically soft alloy prepared by the method.
Description
Technical field
The present invention relates to pure iron magnetically soft alloy and preparation method thereof, particularly relate to a kind of employing powder shape injection moulding work
Pure iron magnetically soft alloy prepared by skill and method.
Background technology
Pure iron be a kind of application the earliest, the generally the least expensive metal soft magnetic material of price, it has relatively high saturated magnetic induction
(Bs=2.15T) and relatively high-curie temperature (Tc=770 DEG C), it is widely used in electric power and electronics industry.Along with magnetic circuit unit device
Part develops to miniature, multifunction direction, and the size of the magnetically soft alloy parts used is more and more less, and shape is the most increasingly
Complicated.And pure iron matter is soft, poor processability, use traditional machining process to prepare these magnetically soft alloy parts, exist
Waste of raw materials is big, and the cycle is long, and cost is high, inefficient shortcoming.
Metal injection moulding method in powder shape injection molding process is prepared soft magnetic products and is had the feature of near-net-shape,
Prepared product need not or have only to trace processing, is a kind of to save the energy and resource, the technology of preparing of low cost, at soft magnetism
The preparation of parts is widely used.It is owing to producing that powder shape ejection forming method prepares the disadvantage of soft magnetic materials
There is some holes in product, consistency is low, causes the magnetism of material can not be high.Such as, the pure iron that prepared by ejection forming method
The relative density of soft magnetic materials is typically only capable to reach 95% ~ 96%, it is difficult to reach high saturated magnetic strength, high pcrmeability and low rectifying
Stupid power.
In order to improve density and the magnetic property of powder metallurgy soft magnetic material, Chinese patent (ZL201010216980.0) is introduced
Use hot pressing or high temperature insostatic pressing (HIP) method to improve the density of material, and improved the magnetic property of material by subsequent heat treatment.The party
The major defect of method is that hot pressing or heat and other static pressuring processes are high to equipment requirements, is difficulty with the low cost of product, gives birth on a large scale
Produce.T.Shin utilizes high temperature (temperature be higher than 1400 DEG C) to utilize δ phase activated sintering to obtain high-performance pure iron material, but high temperature
High to equipment requirements, increase manufacturing cost simultaneously, add loss, it is difficult to be widely used in actual production.
Summary of the invention
The present invention provides a kind of pure iron magnetically soft alloy using powder shape injection molding process to prepare and method, can be effective
Solve the problems referred to above.
A kind of method using powder shape injection molding process to prepare pure iron magnetically soft alloy, comprises the following steps:
S1, forms mixture by carbonyl iron dust and Ni-P alloy powder mix homogeneously, wherein: described Ni-P(nickel-phosphor) alloy
In powder, the content of P is 0.2 ~ 1.0wt% that the content of 5-25wt%, P accounts for total weight of the mixture；
S2, has the feeding of rheological property by described mixture and binding agent 135 ~ 145 DEG C of mixing acquisitions, wherein, described mixed
Compound is 55 ~ 65:40 with the volume ratio of described binding agent；
S3, uses injection machine that described feeding is injected die forming described feeding, prepares the pure iron system of reservation shape
Base substrate；
S4, removes the binding agent in described pure iron system base substrate；
S5, sinters the product obtained in step S4 0.5 hour～8 little at a temperature of 1100～1300 DEG C in atmosphere of hydrogen
Time.
Preferably, in step sl, high energy ball mill is used described carbonyl iron dust and Ni-P alloy powder to be mixed all
Even, wherein, the process time is 2 ~ 10 hours, ratio of grinding media to material 3 ~ 7:1.
Preferably, the content of P accounts for the 0.6-1.0wt% of total weight of the mixture.
Preferably, described binding agent includes paraffin, high density polyethylene (HDPE), polypropylene, polystyrene, stearic acid.
Preferably, described paraffin, described high density polyethylene (HDPE), described polypropylene, described polystyrene, described stearic
Ratio is: 55wt%:10wt%:15wt%:15wt%:5wt%.
Preferably, in step s3, the injection temperature of described injection machine is 150 ~ 160 DEG C, injection pressure 80 ~
90MPa, injection speed 75 ~ 85%, dwell time 2 ~ 6s.
Preferably, in step s 4, the step of the binding agent in described removing pure iron system base substrate includes:
S41, uses the method for solvent degreasing to remove the portion of binder in described pure iron system base substrate；And
S42, uses thermal debinding process to be removed completely by the binding agent in described pure iron system base substrate, wherein, and described thermal debinding process
For being heated to 700 DEG C from room temperature, heating rate is 1 DEG C/min ~ 10 DEG C/min.
Preferably, in step s 2, mixture step S1 obtained is mixing 3 hours at 140 DEG C with binding agent, described
Mixture is 60:40 with the volume ratio of described binding agent.
The present invention also provides for a kind of by said method acquisition pure iron magnetically soft alloy.
The present invention uses carbonyl iron dust to be raw material, with 0.2% ~ 1.0%P element (mixing by the way of ball milling), will mix
After powder stock mix homogeneously with suitable binding agent, prepare the feeding with good rheological property, then by feeding
Powder Injection Molding Technology is used to prepare the base substrate of required shape, after base substrate removing binding agent will be injected, then by defat base
Body sinters at a temperature of 1100～1300 DEG C, obtains the pure iron soft magnetic products of high density, high-performance and complicated shape.The method
The relative density of the pure iron soft magnetic products obtained is up to 99%, and magnetic can be beyond casting method at high temperature (more than 1400
DEG C) magnetic property of electrical pure iron prepared.It addition, the present invention is without using the method for high temperature or pressurization to obtain high density, fall
The low requirement to equipment, is suitable for large-scale production.Load additionally, the carbonyl iron dust using powder size thin can improve powder
Amount, improves the control of product size precision.Finally, use Powder Injection Molding Technology directly to prepare and there is 3 D complex shape
The product of shape, it is not necessary to follow-up machining, can economize on resources and the energy further, reduces cost.
Accompanying drawing explanation
The powder shape injection molding process that uses that Fig. 1 provides for the embodiment of the present invention prepares the preparation of pure iron magnetically soft alloy
The flow chart of method.
Fig. 2 is the hysteresis curve figure of the pure iron magnetically soft alloy that embodiment 3 obtains.
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.It is understood that this place is retouched
The specific embodiment stated is only used for explaining the present invention, rather than limitation of the invention.It also should be noted that, for the ease of
Describe, accompanying drawing illustrate only part related to the present invention rather than entire infrastructure.
Refer to Fig. 1, a kind of method using power injection molding to prepare pure iron magnetically soft alloy, including following step
Rapid:
S1, forms mixture by carbonyl iron dust and Ni-P alloy powder mix homogeneously, wherein: P in described Ni-P alloy powder
The content that content is 5-25wt%, P account for 0.2 ~ 1.0wt% of total weight of the mixture；
S2, has the feeding of rheological property by described mixture and binding agent 135 ~ 145 DEG C of mixing acquisitions, wherein, described mixed
Compound is 55 ~ 60:45 ~ 40 with the volume ratio of described binding agent；
S3, uses injection machine that described feeding is injected die forming described feeding, prepares the pure iron system of reservation shape
Base substrate；
S4, removes the binding agent in described pure iron system base substrate；
S5, sinters the product obtained in step S4 0.5 hour～8 little at a temperature of 1100～1300 DEG C in atmosphere of hydrogen
Time.
In step sl, it is preferred that use high energy ball mill described carbonyl iron dust and Ni-P alloy powder to be mixed all
Even, wherein, the process time of high energy ball mill is 2 ~ 10 hours, ratio of grinding media to material 3 ~ 7:1.Preferably, the content of P accounts for mixture total weight
The 0.6-1.0wt% of amount.It is furthermore preferred that the content of P accounts for the 0.6-0.8wt% of total weight of the mixture.Additionally, it is preferred that, described Ni-
In P alloy powder, the content of P is 10-20wt%.High-energy ball milling can make each element homogenization, creates substantial amounts of in body of powder
Strain, defect, and the highest strain energy, distortional strain energy and surface energy has been gathered on surface, powder is in the non-equilibrium shape of high energy storage
State, this nonequilibrium energy storage state, the sintering process of powder can be improved in subsequent process, promote the burning of body of powder
Knot densification.
In step s 2, it is preferred that mixture step S1 obtained flows 138 ~ 142 DEG C of mixing acquisitions with binding agent
The feeding of degeneration energy.Additionally, it is preferred that, described mixture is 58 ~ 60:42 ~ 40 with the volume ratio of described binding agent.More preferably
, the mixture that step S1 obtained is mixing 3 hours at 140 DEG C with binding agent, and described mixture and described binding agent
Volume ratio is 60:40.It is demonstrated experimentally that by controlling melting temperature and ratio, it is possible to obtain the more preferable feeding of rheological property.Described
Binding agent can be selected from existing binding agent.Described binding agent can include paraffin, high density polyethylene (HDPE), polypropylene, polyphenyl second
Alkene and stearic acid.Preferably, described paraffin, described high density polyethylene (HDPE), described polypropylene, described polystyrene with described firmly
The ratio of fat acid is: 55wt%:10wt%:15wt%:15wt%:5wt%.
In step s3, it is preferred that the injection temperature of described injection machine is 150 ~ 160 DEG C, injection pressure 80 ~
90MPa, injection speed 75 ~ 85%, dwell time 2 ~ 6s.It is furthermore preferred that the injection temperature of described injection machine is 150 ~ 155
DEG C, injection pressure 85 ~ 90MPa, injection speed 78 ~ 82%, dwell time 3 ~ 5s.
In step s 4, the step of the binding agent in described removing pure iron system base substrate includes:
S41, uses the method for solvent degreasing to remove the portion of binder in described pure iron system base substrate；And
S42, uses thermal debinding process to be removed completely by the binding agent in described pure iron system base substrate, wherein, and described thermal debinding process
For being slowly heated to 700 DEG C, heating rate is 1 DEG C/min ~ 10 DEG C/min.
In step S41, described solvent is that trichloro ethylene etc. can dissolve described paraffin, described high density polyethylene (HDPE), institute
State polypropylene, described polystyrene and described stearic organic solvent.
In step s 5, it is preferred that the product obtained in step S4 is sintered 2-4 hour at 1200 DEG C-1300 DEG C.
The present invention also provides for a kind of by said method acquisition pure iron magnetically soft alloy, and wherein, described pure iron system soft magnetism closes
The consistency of gold is more than 99.2%, B6000More than or equal to 1.50T, coercivity is less than 30A/m, and maximum permeability is more than 4.0 mH/m.
Embodiment 1:
Carbonyl iron dust and Ni-P alloy powder mix homogeneously are formed mixture, wherein, containing 0.2wt%P in mixture, bonding
Agent is made up of 60% paraffin, 15% high density polyethylene (HDPE), 10% polypropylene, 10% polystyrene and 5% stearic acid.By the body of mixture
Long-pending than be 60% mixture is mixed homogeneously with binding agent after make feeding, feeding shapes on injection machine, forming parameter
For: injection temperature 155 DEG C, injection pressure 90MPa, injection speed 80%, dwell time 4s, obtain shaping base；Base will be shaped three
Vinyl chloride soaks solvent degreasing 4 hours, after being dried by solvent degreasing base；Again by solution-off base from the temperature model of room temperature to 600 DEG C
Enclose interior thermal debinding, defat base is sintered 2 hours at a temperature of 1200 DEG C in hydrogen, prepare high-performance, high dimensional accuracy pure
Ferrum magnetically soft alloy product.
The density of gained pure iron soft magnetic products is 7.45g/cm3, magnetic induction density B6000For 1.50T, coercivity is 105A/
M, maximum permeability 4.5mH/m.
Embodiment 2:
Carbonyl iron dust and Ni-P alloy powder mix homogeneously are formed mixture, wherein, containing 0.4wt%P in mixture, bonding
Agent is made up of 60% paraffin, 15% high density polyethylene (HDPE), 15% polystyrene and 10% stearic acid.It is 58% by the volume ratio of mixture
Making feeding with binding agent after being mixed homogeneously by mixture, feeding shapes on injection machine, and forming parameter is: injection temperature
150 DEG C, injection pressure 85MPa, injection speed 80%, dwell time 4s, obtain shaping base；Base will be shaped soak in normal heptane
Solvent degreasing 4 hours, after solvent degreasing base is dried, then by solution-off base thermal debinding within the temperature range of room temperature to 650 DEG C, will
Defat base sinters 2 hours at a temperature of 1200 DEG C in hydrogen.
The density of gained pure iron soft magnetic products is 7. 56g/cm3, magnetic induction density B6000For 1.58T, coercivity is 85A/
M, maximum permeability 6.8mH/m.
Embodiment 3:
Carbonyl iron dust and Ni-P alloy powder mix homogeneously are formed mixture, wherein, containing 0.6wt%P in mixture；Bonding
Agent is made up of 55% paraffin, 10% high density polyethylene (HDPE), 15% polypropylene, 15% polystyrene and 5% stearic acid.By the body of mixture
Long-pending than be 60% mixture is mixed homogeneously with binding agent after make feeding, feeding shapes on injection machine, forming parameter
For: injection temperature 155 DEG C, injection pressure 90MPa, injection speed 80%, dwell time 4s, obtain shaping base；Base will be shaped just
Heptane soaks solvent degreasing 4 hours, after being dried by solvent degreasing base, then by solution-off base from the temperature range of room temperature to 600 DEG C
Interior thermal debinding, sinters defat base 2 hours at a temperature of 1200 DEG C in hydrogen.
Refer to Fig. 2, the density of gained pure iron soft magnetic products is 7.8g/cm3, magnetic induction density B6000For 1.74T, coercive
Power is 34A/m, maximum permeability 16mH/m, and combination property is optimum.
Embodiment 4:
Carbonyl iron dust and Ni-P alloy powder mix homogeneously are formed mixture, wherein, containing 0.8wt%P in mixture；Bonding
Agent is made up of 60% paraffin, 10% high density polyethylene (HDPE), 14% polypropylene, 11% polystyrene and 5% stearic acid；By the body of mixture
Long-pending than be 58% mixture is mixed homogeneously with binding agent after make feeding, feeding shapes on injection machine, forming parameter
For: injection temperature 150 DEG C, injection pressure 85MPa, injection speed 80%, dwell time 4s, obtain shaping base；Base will be shaped just
Heptane soaks solvent degreasing 4 hours, after being dried by solvent degreasing base, then by solution-off base from the temperature range of room temperature to 650 DEG C
Interior thermal debinding, sinters defat base 4 hours at a temperature of 1200 DEG C in hydrogen, prepares high-performance, high dimensional accuracy pure iron
Magnetically soft alloy product.
The density of gained pure iron soft magnetic products is 7.78g/cm3, magnetic induction density B6000For 1.73T, coercivity is 40.5A/
M, maximum permeability 13mH/m.
Embodiment 5:
Carbonyl iron dust and Ni-P alloy powder mix homogeneously are formed mixture, wherein, containing 0.8wt%P in mixture；Bonding
Agent is made up of 60% paraffin, 15% high density polyethylene (HDPE), 15% polypropylene and 10% stearic acid.It is 60% general by the volume ratio of mixture
Mixture makes feeding with binding agent after mixing homogeneously, feeding shapes on injection machine, and forming parameter is: injection temperature
155 DEG C, injection pressure 90MPa, injection speed 80%, dwell time 4s, obtain shaping base；Base will be shaped soak in normal heptane
Solvent degreasing 4 hours, after solvent degreasing base is dried, then by solution-off base thermal debinding within the temperature range of room temperature to 600 DEG C, will
Defat base sinters 2 hours at a temperature of 1300 DEG C in hydrogen, prepares high-performance, high dimensional accuracy pure iron magnetically soft alloy product
Product.
The density of gained pure iron soft magnetic products is 7.76g/cm3, magnetic induction density B6000For 1.72T, coercivity is 50A/m,
Maximum permeability 11mH/m.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious change,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although by above example, the present invention is carried out
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other Equivalent embodiments more can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. the method using powder shape injection molding process to prepare pure iron magnetically soft alloy, comprises the following steps:
S1, forms mixture by carbonyl iron dust and Ni-P alloy powder mix homogeneously, wherein: P in described Ni-P alloy powder
The content that content is 5-25wt%, P account for 0.2 ~ 1.0wt% of total weight of the mixture；
S2, has the feeding of rheological property by described mixture and binding agent 135 ~ 145 DEG C of mixing acquisitions, wherein, described mixed
Compound is 55 ~ 60:45 ~ 40 with the volume ratio of described binding agent；
S3, uses injection machine that described feeding is injected die forming described feeding, prepares the pure iron system of reservation shape
Base substrate；
S4, removes the binding agent in described pure iron system base substrate；
S5, sinters the product obtained in step S4 0.5 hour～8 little at a temperature of 1100～1300 DEG C in atmosphere of hydrogen
Time.
Method the most according to claim 1, it is characterised in that in step sl, uses high energy ball mill by described carbonyl
Iron powder and Ni-P alloy powder mix homogeneously, wherein, the process time is 2 ~ 10 hours, ratio of grinding media to material 3 ~ 7:1.
Method the most according to claim 1, it is characterised in that the content of P accounts for the 0.6-1.0wt% of total weight of the mixture.
Method the most according to claim 1, it is characterised in that described binding agent include paraffin, high density polyethylene (HDPE), poly-third
Alkene, polystyrene, stearic acid.
Method the most according to claim 4, it is characterised in that described paraffin, described high density polyethylene (HDPE), described poly-third
Alkene, described polystyrene, described stearic ratio be: 55wt%:10wt%:15wt%:15wt%:5wt%.
Method the most according to claim 1, it is characterised in that in step s3, the injection temperature of described injection machine
It is 150 ~ 160 DEG C, injection pressure 80 ~ 90MPa, injection speed 75 ~ 85%, dwell time 2 ~ 6s.
Method the most according to claim 1, it is characterised in that in step s 4, viscous in described removing pure iron system base substrate
The step of knot agent includes:
S41, uses the method for solvent degreasing to remove the portion of binder in described pure iron system base substrate；And
S42, uses thermal debinding process to be removed completely by the binding agent in described pure iron system base substrate, wherein, and described thermal debinding process
For being heated to 700 DEG C from room temperature, heating rate is 1 DEG C/min ~ 10 DEG C/min.
Method the most according to claim 1, it is characterised in that in step s 2, the mixture that step S1 is obtained with
Binding agent is mixing 3 hours at 140 DEG C, and described mixture is 60:40 with the volume ratio of described binding agent.
9. a pure iron magnetically soft alloy, described pure iron magnetically soft alloy is obtained by the method described in any one of claim 1-8
, wherein, the content of P accounts for 0.2 ~ 1.0wt% of pure iron magnetically soft alloy gross weight.
10. pure iron magnetically soft alloy as claimed in claim 9, it is characterised in that the consistency of described pure iron magnetically soft alloy
More than 99.2%, B6000More than or equal to 1.50T, coercivity is less than 30A/m, and maximum permeability is more than 4.0 mH/m.
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| CN109108272A (en) * | 2018-10-10 | 2019-01-01 | 厦门理工学院 | A kind of preparation method of the composition for being used to prepare engine link and engine link |
| CN109249014A (en) * | 2018-10-10 | 2019-01-22 | 厦门理工学院 | A kind of preparation method of the composition for being used to prepare the corrosion-resistant engine link of high density and engine link |
| CN109261955A (en) * | 2018-10-10 | 2019-01-25 | 厦门理工学院 | A kind of preparation method of the composition for being used to prepare high-density high-strength engine link and engine link |
| CN109545492A (en) * | 2018-10-25 | 2019-03-29 | 无锡斯贝尔磁性材料有限公司 | A kind of composition being used to prepare flexible magnetic sheet and preparation method |
| CN110421175A (en) * | 2019-08-27 | 2019-11-08 | 江苏精研科技股份有限公司 | The method that ferrocobalt complex parts are prepared using powder injection forming |
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| CN109108272A (en) * | 2018-10-10 | 2019-01-01 | 厦门理工学院 | A kind of preparation method of the composition for being used to prepare engine link and engine link |
| CN109249014A (en) * | 2018-10-10 | 2019-01-22 | 厦门理工学院 | A kind of preparation method of the composition for being used to prepare the corrosion-resistant engine link of high density and engine link |
| CN109261955A (en) * | 2018-10-10 | 2019-01-25 | 厦门理工学院 | A kind of preparation method of the composition for being used to prepare high-density high-strength engine link and engine link |
| CN109545492A (en) * | 2018-10-25 | 2019-03-29 | 无锡斯贝尔磁性材料有限公司 | A kind of composition being used to prepare flexible magnetic sheet and preparation method |
| CN110421175A (en) * | 2019-08-27 | 2019-11-08 | 江苏精研科技股份有限公司 | The method that ferrocobalt complex parts are prepared using powder injection forming |
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