CN110571010A - Composite amorphous finished product powder and preparation method thereof - Google Patents

Composite amorphous finished product powder and preparation method thereof Download PDF

Info

Publication number
CN110571010A
CN110571010A CN201910883448.5A CN201910883448A CN110571010A CN 110571010 A CN110571010 A CN 110571010A CN 201910883448 A CN201910883448 A CN 201910883448A CN 110571010 A CN110571010 A CN 110571010A
Authority
CN
China
Prior art keywords
powder
amorphous
composite
meshes
amorphous alloy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910883448.5A
Other languages
Chinese (zh)
Inventor
王策
孙海波
陈卫红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Zhongyan Amorphous Technology Co Ltd
Original Assignee
Foshan Zhongyan Amorphous Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foshan Zhongyan Amorphous Technology Co Ltd filed Critical Foshan Zhongyan Amorphous Technology Co Ltd
Priority to CN201910883448.5A priority Critical patent/CN110571010A/en
Publication of CN110571010A publication Critical patent/CN110571010A/en
Priority to CN202010047706.9A priority patent/CN111029079A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15383—Applying coatings thereon
    • 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
    • B22F1/05—Metallic powder characterised by the size or surface area of the particles
    • B22F1/052—Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
    • 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
    • B22F1/16—Metallic particles coated with a non-metal
    • 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
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15341—Preparation processes therefor
    • 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
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15341—Preparation processes therefor
    • H01F1/1535—Preparation processes therefor by powder metallurgy, e.g. spark erosion
    • 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
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15358—Making agglomerates therefrom, e.g. by pressing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder

Abstract

the invention provides composite amorphous finished product powder which comprises composite amorphous alloy powder, wherein the composite amorphous alloy powder comprises flaky first amorphous powder and spherical second amorphous powder, and the first amorphous powder and the second amorphous powder are uniformly mixed; the surface of the composite amorphous alloy powder is coated with an insulating coating layer; also provides a preparation method of the composite amorphous finished powder. According to the composite amorphous finished powder, the composite amorphous alloy powder mixed with amorphous powder of different types of appearances is applied, so that the flowability and the forming density of the powder are effectively improved, and the direct current bias capability of the magnetic powder core prepared by applying the composite amorphous alloy powder is further improved.

Description

composite amorphous finished product powder and preparation method thereof
Technical Field
The invention relates to the technical field of soft magnetic alloy metallurgy, in particular to composite amorphous finished product powder and a preparation method thereof.
Background
The amorphous material has high saturation magnetic induction, high magnetic conductivity, low coercive force, low high-frequency loss, good strong hardness, wear resistance, corrosion resistance, good temperature and environmental stability and the like, has excellent comprehensive performance, replaces permalloy, silicon steel and ferrite, is applied to power electronic technology, shows the characteristics of small volume, high efficiency, energy conservation and the like, and has the optimal cost performance ratio in all metal soft magnetic materials.
In the prior art, the amorphous alloy can be prepared into powder and then the magnetic powder core is prepared from the powder, and the powder preparation process comprises the step of crushing an amorphous strip or the step of preparing the powder by a water atomization method.
The insulating coating is a key technology in the preparation process of the magnetic powder core, the performance of the insulating coating is an important factor influencing the high-frequency loss of the magnetic powder core, and if the insulating coating is incomplete or damaged, the eddy current loss among magnetic powder particles is increased sharply, so that the high-frequency loss of the magnetic powder core is increased.
Disclosure of Invention
The present invention is directed to overcoming the disadvantages of the prior art and providing a method for manufacturing an electromagnetic shielding sheet.
The composite amorphous finished product powder comprises composite amorphous alloy powder, wherein the composite amorphous alloy powder comprises flaky first amorphous powder and spherical second amorphous powder, and the first amorphous powder and the second amorphous powder are uniformly mixed; the surface of the composite amorphous alloy powder is coated with an insulating coating layer.
Furthermore, the mesh range of the first amorphous powder is-100 to +270 meshes, and the mesh range of the second amorphous powder is-200 to +400 meshes.
further, the powder ratio of the first amorphous powder is as follows: the powder proportion of the first amorphous powder is as follows: 10-30% of-100 meshes to +150 meshes, 20-50% of-150 meshes to +200 meshes, and 10-30% of-200 meshes to +270 meshes; the proportion of the second amorphous powder is 10-40%.
Further, the powder material adopted by the first amorphous powder and/or the second amorphous powder is FeSiB amorphous alloy.
Further, the powder material adopted by the first amorphous powder and/or the second amorphous powder is Fe78Si9B13。
the preparation method of the composite amorphous finished powder comprises the following steps:
S1, selecting an amorphous strip to mechanically crush to obtain first amorphous powder;
s2, selecting amorphous alloy to carry out water atomization treatment to obtain second amorphous powder;
S3, proportionally mixing the first amorphous powder and the second amorphous powder to obtain composite amorphous alloy powder;
S4, carrying out insulation coating treatment on the obtained composite amorphous alloy powder to obtain coated powder;
And S5, adding a lubricant into the obtained coating powder, and stirring and mixing the coating powder by a stirrer to obtain the composite amorphous finished product powder.
further, in step S4, a first insulation coating method is applied to perform the insulation coating process, the first insulation coating method includes the following steps:
S4-01, mixing and attaching inorganic powder to the composite amorphous alloy powder by ultrasonic waves to obtain attached powder;
And S4-02, mixing and fully reacting the alkaline solution with the attached powder, and drying to form an insulating coating layer on the surface of the attached powder, thereby obtaining the coated powder.
further, the first and/or second amorphous powder contains Fe and/or Si; in step S4, a second insulation coating method is applied to perform insulation coating treatment, the second insulation coating method includes the following steps:
s4-11, preheating and heating a rotary furnace to 240-450 ℃, and adding the composite amorphous alloy powder into the rotary furnace;
And S4-12, continuously introducing oxygen-containing air into the rotary furnace, turning the composite amorphous alloy powder in the rotary furnace, and fully reacting the surface of the composite amorphous alloy powder with the oxygen-containing air to form an insulating coating layer on the surface of the composite amorphous alloy powder to obtain the coated powder.
further, in step S4, a third insulation coating method is applied to perform the insulation coating process, and the third insulation coating method includes the following steps:
and S4-31, adding the composite amorphous alloy powder by using a cohesive inorganic substance, and uniformly mixing to form an insulating coating layer on the surface of the composite amorphous alloy powder to obtain the coated powder.
The invention has the beneficial effects that:
according to the composite amorphous finished powder, the composite amorphous alloy powder mixed with amorphous powder of different types of appearances is applied, so that the flowability and the forming density of the powder are effectively improved, and the direct current bias capability of the magnetic powder core prepared by applying the composite amorphous alloy powder is further improved.
Detailed Description
in order to make the technical solution, objects and advantages of the present invention more apparent, the present invention will be further explained with reference to the following embodiments.
the composite amorphous alloy powder comprises a first amorphous powder in a sheet shape and a second amorphous powder in a sphere-like shape, and the first amorphous powder and the second amorphous powder are uniformly mixed, so that the preparation method can comprise the following steps:
S1, selecting an amorphous strip to mechanically crush to obtain first amorphous powder;
S2, selecting amorphous alloy to carry out water atomization treatment to obtain second amorphous powder;
s3, proportionally mixing the first amorphous powder and the second amorphous powder to obtain the composite amorphous alloy powder.
Specifically, in step S3, the first amorphous powder and the second amorphous powder are mixed according to the following ratio:
the mesh range of the first amorphous powder is-100 to +270 meshes, and the mesh range of the second amorphous powder is-200 to +400 meshes. 10-30% of-100 meshes to +150 meshes, 20-50% of-150 meshes to +200 meshes, and 10-30% of-200 meshes to +270 meshes; the proportion of the second amorphous powder is 10-40%. The composite amorphous alloy powder with good fluidity is obtained by adjusting the proportion and mixing configuration of the composite amorphous alloy powder with different mesh numbers, and the main parameters of good powder fluidity are as follows: bulk density, tap density, angle of repose, degree of dispersion, etc.; the comprehensive index is a fluidity index which can be tested by using a Dandongbaote powder characteristic analyzer; the fluidity index is above 70 and is a good grade, and the larger the fluidity index is, the better the fluidity is; the powder with good fluidity has smaller resistance among powder particles in the molding process, thereby being beneficial to molding; under the same pressure condition, the magnetic powder core prepared by the method has higher density and better product performance.
The first amorphous powder and the second amorphous powder are made of FeSiB amorphous alloy, specifically Fe78Si9B13(ii) a The amorphous alloy is prepared by putting industrial pure iron, iron boron alloy and industrial silicon with proper weight into a smelting furnace for smelting.
and based on the preparation of the composite amorphous alloy powder, a composite amorphous finished powder can be prepared by coating the surface of the composite amorphous alloy powder with an insulating coating layer, and the preparation method of the composite amorphous finished powder based on the composite amorphous alloy powder further comprises the following steps:
S4, carrying out insulation coating treatment on the obtained composite amorphous alloy powder to obtain coated powder;
and S5, adding the lubricant into the coated powder, and stirring and mixing the coated powder by a stirrer to obtain the composite amorphous finished powder.
Example 1:
In step S4, a first insulation coating method is applied to perform the insulation coating process, the first insulation coating method includes the following steps:
s4-01, mixing and attaching inorganic powder to the composite amorphous alloy powder by ultrasonic waves to obtain attached powder;
and S4-02, mixing and fully reacting the alkaline solution with the attached powder, and drying to form an insulating coating layer on the surface of the attached powder, thereby obtaining the coated powder.
the inorganic powder is SiO2or Fe2O3and the like inorganic oxides; the mesh number of the inorganic powder is more than 8000 meshes, so that the ultrafine effect is achieved, and the particles of the inorganic powder approach to the nano level.
specifically, the composite amorphous alloy powder of each mesh is mixed and uniformly mixed by a V-shaped mixer, and the V-shaped mixer is used for outputting ultrasonic waves by an ultrasonic vibrator in the mixing and stirring process of the composite amorphous alloy powder, so that the inorganic powder is uniformly adhered to the composite amorphous alloy powder by virtue of certain adsorption capacity of the ultrafine inorganic powder, thereby obtaining the adhered powder.
Mixing and fully reacting an alkali solution with the attached powder, wherein the alkali solution can be selected from a NaOH solution, and the reaction process comprises or involves a chemical reaction formula: SiO 22+2NaOH＝Na2SiO3+H2o, stirring uniformly and fully reacting under the condition of normal temperature; adding a binder into the attached powder which is fully reacted with the alkali solution to stir until the powder is uniformly dried, so that Na-carrying particles are formed on the surface of the attached powder2SiO3To obtain coated powder.
the binder is a cohesive inorganic or organic binder; the adhesive is silicon resin, water glass or epoxy resin, and the addition amount of the adhesive is 0.2-2.5%.
The addition amount of the inorganic powder can be increased according to the performance requirement according to the content required by forming a single-layer insulating coating layer; the thickness of the attached insulating coating layer approaches to a single layer and approaches to complete attachment.
Example 2:
based on the first and/or second amorphous powderFe of Fe and Si78Si9B13(ii) a In step S4, a second insulation coating method is applied to perform insulation coating treatment, the second insulation coating method includes the following steps:
s4-11, preheating and heating a rotary furnace to 240-450 ℃, and adding the composite amorphous alloy powder into the rotary furnace;
and S4-12, continuously introducing oxygen-containing air into the rotary furnace, turning the composite amorphous alloy powder in the rotary furnace, and fully reacting the surface of the composite amorphous alloy powder with the oxygen-containing air to form an insulating coating layer on the surface of the composite amorphous alloy powder to obtain the coated powder.
Specifically, the obtained mixed powder is subjected to a baking treatment in a rotary kiln to stress-relieve annealing; the rotary furnace is provided with a corresponding oxygen introducing mechanism and a corresponding turnover mechanism, so that oxygen-containing air is continuously introduced into the rotary furnace through the oxygen introducing mechanism, the turnover mechanism is used for turning over the mixed powder in the rotary furnace, the surface of the mixed powder is fully reacted with the oxygen-containing air, and the chemical reaction formula of the turnover mechanism relates to the formula; fe + O2＝Fe2O3and Si + O2＝SiO2turning and stirring evenly for full reaction; so that an insulating coating layer with corresponding oxide is formed on the surface of the mixed powder to obtain coated powder.
example 3:
In step S4, a third insulation coating method is applied to perform the insulation coating process, the third insulation coating method includes the following steps:
and S4-31, adding the composite amorphous alloy powder by using a cohesive inorganic substance, and uniformly mixing to form an insulating coating layer on the surface of the composite amorphous alloy powder to obtain the coated powder.
adding the obtained mixed powder into a double-shaft stirrer, and adding a cohesive inorganic substance to stir until the mixture is uniform, so that an insulating coating layer is formed on the surface of the mixed powder, and coated powder is obtained; the adopted cohesive inorganic matter is a sodium silicate solution or inorganic silicon resin, preferably the sodium silicate solution, the modulus of the sodium silicate solution is preferably 2.5-3.5, the Baume degree is preferably 0.35-0.48, the ratio of the sodium silicate solution is 0.5-3.2%, the sodium silicate solution is diluted by a diluent, the ratio of the diluent is 1.2-6.5%, and the diluent can be selected from but not limited to acetone and ethanol.
in the above examples 1, 2 and 3, the lubricant used includes, but is not limited to, zinc stearate, paraffin wax, barium stearate.
And then based on the above-mentioned compound amorphous finished powder, can carry on the preparation of a compound amorphous magnetic powder core, then this compound amorphous magnetic powder core preparation method, based on the above-mentioned compound amorphous finished powder preparation method, also include the following steps:
And S6, performing pressing treatment, sintering treatment, annealing treatment and curing treatment on the obtained composite amorphous finished product powder to obtain the magnetic powder core base block.
and S7, performing surface coating treatment on the magnetic powder core base block to obtain the composite amorphous magnetic powder core.
In the above step S7, a surface coating treatment method is applied to the magnetic powder core substrate to perform a surface coating treatment on the magnetic powder core substrate, and the surface coating treatment method of the magnetic powder core substrate includes the following steps:
S7-1, performing surface pretreatment on the magnetic powder core base block to form a pretreatment insulating layer on the surface of the magnetic powder core base block;
s7-2, carrying out preheating treatment on the magnetic powder core base block after surface pretreatment, wherein the preheating treatment temperature is 180-240 ℃; then, performing roller coating treatment by using a second insulating material; and adsorbing and melting the second insulating material by self heat of the preheated magnetic powder core base block so as to form a roll coating on the pretreated insulating layer.
the second insulating material is acetal insulating powder, phenolic insulating powder or epoxy insulating powder.
the thickness range of the pre-treatment insulating layer is 20-150 mu m, and preferably 30-80 mu m; the thickness range of the roller coating is 100-400 mu m, and preferably 150-250 mu m.
example 4:
In step S7-1, the method includes the following steps:
S7-1-01, heating the magnetic powder core base block to a temperature of 150-250 ℃;
S7-1-2, performing electrostatic spraying treatment on the magnetic powder core base block heated and heated by adopting electrostatic spraying equipment and first insulating powder to form the pretreated insulating layer on the surface of the magnetic powder core base block; the first insulating powder is acetal insulating powder, phenolic insulating powder or epoxy insulating powder.
Example 5:
In step S7-1, the method includes the following steps:
S7-1-11, performing spraying treatment on the magnetic powder core base block by a liquid spray gun with first insulating paint; the first insulating paint is acetal insulating paint or phenolic insulating paint or epoxy insulating paint;
s7-1-12, baking and heating the magnetic powder core base block after spraying treatment, wherein the baking and heating temperature is 100-150 ℃; so that the surface of the magnetic powder core base block is formed with the pretreatment insulating layer.
Specifically, the application principle of the magnetic powder core base block surface coating treatment method is as follows:
Firstly, performing surface pretreatment on the magnetic powder core base block by using first insulating powder or first insulating paint to prepare a thin insulating pretreatment insulating layer on the surface of the rough magnetic powder core base block, so as to improve the insulating property of the magnetic powder core base block and compensate the surface defects (such as residual holes) of the magnetic powder core base block to a certain extent; and then the magnetic powder core base block is subjected to roller coating treatment by using a second insulating material. Based on the premise that the magnetic powder core base block is preheated, the second insulating material in the material box can be adsorbed by the magnetic powder core base block with heat in a roll coating mode to form a roll coating layer.
In the roll coating process, the magnetic powder core base block is in a rolling state in the material box, and the rolling speed of the magnetic powder core base block is controlled through the parameter and process adjustment of roll coating equipment, so that the uniformity of the roll coating formed by the magnetic powder core base block can be effectively controlled; the second insulating materials are intensively placed in a material box, so that the second insulating materials in the roll coating process are intensively arranged without scattering, the roll coating process basically does not consume the second insulating materials additionally, and raw materials are saved.
Compared with the prior art that the insulating coating on the surface of the magnetic powder core base block is processed by directly applying a spraying mode or directly applying a rolling coating mode, the scheme is based on the step-by-step processing application of the double-layer insulating coating, and the thickness and the uniformity of the insulating coating are controlled by adjusting the matching of the parameters of the rolling coating equipment, and the surface quality of the insulating coating is improved.
Example 6:
Is prepared with the component composition of Fe78Si9B13the amorphous alloy of (4); preparing the first flake amorphous powder and the second sphere-like amorphous powder by using the first flake amorphous powder and the second sphere-like amorphous powder;
Sieving the obtained amorphous powder to enable the first amorphous powder to be mixed according to the proportion of 20 percent of-100 meshes to +150 meshes, 40 percent of-150 meshes to +200 meshes and 15 percent of-200 meshes to +270 meshes; the second amorphous powder is prepared in a proportion of-200 meshes to +400 meshes of 25 percent; the amorphous powder obtained by proportioning is repeatedly and uniformly mixed to obtain corresponding composite amorphous alloy powder, and a corresponding composite amorphous magnetic powder core is prepared by the amorphous alloy powder.
The performance of the detected target product and the performance of the amorphous powder core prepared by applying the target product in the market are as follows:
Example 7:
Is prepared with the component composition of Fe78Si8.5B13.5the amorphous alloy of (4), and the first amorphous powder in a flake form is carried out therewith;
Is prepared with the component composition of Fe78Si9B13And the second spherical amorphous powder is prepared by the amorphous alloy;
sieving the obtained amorphous powder to enable the first amorphous powder to be mixed according to the proportion of 20 percent of-100 meshes to +150 meshes, 40 percent of-150 meshes to +200 meshes and 15 percent of-200 meshes to +270 meshes; the second amorphous powder is prepared in a proportion of-200 meshes to +400 meshes of 25 percent; the amorphous powder obtained by proportioning is repeatedly and uniformly mixed to obtain corresponding composite amorphous alloy powder, and a corresponding composite amorphous magnetic powder core is prepared by the amorphous alloy powder.
the performance of the detected target product and the performance of the amorphous powder core prepared by applying the target product in the market are as follows:
Example 8:
Is prepared with the component composition of Fe78Si9B13The amorphous alloy of (4); preparing the first flake amorphous powder and the second sphere-like amorphous powder by using the first flake amorphous powder and the second sphere-like amorphous powder;
Sieving the obtained amorphous powder to make the first amorphous powder be mixed according to the proportion of 30% of-100 meshes to +150 meshes, 40% of-150 meshes to +200 meshes and 10% of-200 meshes to +270 meshes; the second amorphous powder accounts for 20 percent of-200 meshes- +400 meshes; the amorphous powder obtained by proportioning is repeatedly and uniformly mixed to obtain corresponding composite amorphous alloy powder, and a corresponding composite amorphous magnetic powder core is prepared by the amorphous alloy powder.
the performance of the detected target product and the performance of the amorphous powder core prepared by applying the target product in the market are as follows:
Example 9:
Is prepared with the component composition of Fe78Si9B13The amorphous alloy of (4); and using the first amorphous powder in a flake form and a second amorphous powder in a sphere-like formpreparing crystal powder;
Sieving the obtained amorphous powder to enable the first amorphous powder to be mixed according to the proportion of 25% of-100 meshes to +150 meshes, 35% of-150 meshes to +200 meshes and 25% of-200 meshes to +270 meshes; the second amorphous powder accounts for 15 percent of-200 meshes- +400 meshes; the amorphous powder obtained by proportioning is repeatedly and uniformly mixed to obtain corresponding composite amorphous alloy powder, and a corresponding composite amorphous magnetic powder core is prepared by the amorphous alloy powder.
The performance of the detected target product and the performance of the amorphous powder core prepared by applying the target product in the market are as follows:
Example 10:
is prepared with the component composition of Fe78Si9B13The amorphous alloy of (4); preparing the first flake amorphous powder and the second sphere-like amorphous powder by using the first flake amorphous powder and the second sphere-like amorphous powder;
sieving the obtained amorphous powder to enable the first amorphous powder to be mixed according to the proportion of 20 percent of-100 meshes to +150 meshes, 40 percent of-150 meshes to +200 meshes and 15 percent of-200 meshes to +270 meshes; the second amorphous powder is prepared in a proportion of-200 meshes to +400 meshes of 25 percent; and (4) repeatedly and uniformly mixing the amorphous powder obtained by proportioning to obtain the corresponding composite amorphous alloy powder.
The obtained composite amorphous alloy powder was subjected to insulation cladding treatment by the second insulation cladding method in example 2 described above, and thus a corresponding composite amorphous magnetic powder core was prepared.
The performance of the detected target product and the performance of the amorphous powder core prepared by applying the target product in the market are as follows:
Example 11:
is prepared with the component composition of Fe78Si9B13The amorphous alloy of (4); and go in this waypreparing the first amorphous powder in a line-shaped sheet shape and the second amorphous powder in a sphere-like shape;
sieving the obtained amorphous powder to enable the first amorphous powder to be mixed according to the proportion of 20 percent of-100 meshes to +150 meshes, 40 percent of-150 meshes to +200 meshes and 15 percent of-200 meshes to +270 meshes; the second amorphous powder is prepared in a proportion of-200 meshes to +400 meshes of 25 percent; and (4) repeatedly and uniformly mixing the amorphous powder obtained by proportioning to obtain the corresponding composite amorphous alloy powder.
the obtained composite amorphous alloy powder was subjected to insulation cladding treatment by the third insulation cladding method in the above-described example 3, and thus a corresponding composite amorphous magnetic powder core was prepared.
The performance of the detected target product and the performance of the amorphous powder core prepared by applying the target product in the market are as follows:
example 12:
Is prepared with the component composition of Fe78Si9B13The amorphous alloy of (4); preparing the first flake amorphous powder and the second sphere-like amorphous powder by using the first flake amorphous powder and the second sphere-like amorphous powder;
Sieving the obtained amorphous powder to enable the first amorphous powder to be mixed according to the proportion of 20 percent of-100 meshes to +150 meshes, 40 percent of-150 meshes to +200 meshes and 15 percent of-200 meshes to +270 meshes; the second amorphous powder is prepared in a proportion of-200 meshes to +400 meshes of 25 percent; and (4) repeatedly and uniformly mixing the amorphous powder obtained by proportioning to obtain the corresponding composite amorphous alloy powder.
Adding phosphoric acid acetone solution into the obtained composite amorphous alloy powder, and stirring until the mixture is uniformly dried, wherein phosphoric acid accounts for 0.2 percent, and acetone accounts for 4.0 percent; then adding 0.6% of silicone resin and 4.0% of acetone mixed solution, uniformly mixing and drying to complete the insulation coating treatment, and obtaining coated powder; then 0.6 percent of zinc stearate is added into the coated powder, and the mixture is stirred and mixed evenly to obtain composite amorphous finished powder.
And (3) pressing and molding the composite amorphous finished product powder into 27 x 15 x 11 amorphous magnetic rings, and then annealing the amorphous magnetic rings, wherein the annealing temperature is 450 ℃ and the annealing time is 40 min.
soaking the annealed product in an epoxy resin acetone solution for 10min, and drying and curing at 120 ℃; then, the cured product is subjected to surface insulation layer treatment, so that a corresponding composite amorphous magnetic powder core is prepared.
the performance of the detected target product and the performance of the amorphous powder core prepared by applying the target product in the market are as follows:
Example 13:
is prepared with the component composition of Fe78Si9B13the amorphous alloy of (4); preparing the first flake amorphous powder and the second sphere-like amorphous powder by using the first flake amorphous powder and the second sphere-like amorphous powder;
sieving the obtained amorphous powder to enable the first amorphous powder to be mixed according to the proportion of 20 percent of-100 meshes to +150 meshes, 40 percent of-150 meshes to +200 meshes and 15 percent of-200 meshes to +270 meshes; the second amorphous powder is prepared in a proportion of-200 meshes to +400 meshes of 25 percent; and (4) repeatedly and uniformly mixing the amorphous powder obtained by proportioning to obtain the corresponding composite amorphous alloy powder.
Adding the obtained composite amorphous alloy powder into a rotary furnace for oxidation insulation treatment, wherein the temperature of the rotary furnace is 350 ℃, the rotating speed of the furnace body is 20r/min, the oxygen content of introduced air is 23 +/-0.5%, and the powder is turned and baked for 12 hours; then adding a mixed solution of 0.6% of silicone resin and 4.0% of acetone, uniformly mixing and drying to obtain coated powder.
Adding 0.6% of zinc stearate into the coated powder, and uniformly stirring and mixing to obtain composite amorphous finished product powder;
pressing and molding the composite amorphous finished product powder into 27 × 15 × 11 amorphous magnetic rings; and annealing the amorphous magnetic ring, wherein the annealing temperature is 450 ℃ and the annealing time is 40 min.
Soaking the annealed product in an epoxy resin acetone solution for 10min, and drying and curing at 120 ℃; then, the cured product is subjected to surface insulation layer treatment to obtain a corresponding composite amorphous magnetic powder core.
The performance of the detected target product and the performance of the amorphous powder core prepared by applying the target product in the market are as follows:
Example 14:
Is prepared with the component composition of Fe78Si9B13The amorphous alloy of (4); preparing the first flake amorphous powder and the second sphere-like amorphous powder by using the first flake amorphous powder and the second sphere-like amorphous powder;
sieving the obtained amorphous powder to enable the first amorphous powder to be mixed according to the proportion of 20 percent of-100 meshes to +150 meshes, 40 percent of-150 meshes to +200 meshes and 15 percent of-200 meshes to +270 meshes; the second amorphous powder is prepared in a proportion of-200 meshes to +400 meshes of 25 percent; and (4) repeatedly and uniformly mixing the amorphous powder obtained by proportioning to obtain the corresponding composite amorphous alloy powder.
adding the obtained composite amorphous alloy powder into a sodium silicate aqueous solution, uniformly stirring and drying, wherein the proportion of sodium silicate is 0.8%, the proportion of purified water is 4.0%, and the drying temperature is 80 ℃; then adding a mixed solution of 0.6% of silicone resin and 4.0% of acetone, uniformly mixing and drying to obtain coated powder.
adding 0.6% of zinc stearate into the coated powder, and uniformly stirring and mixing to obtain composite amorphous finished product powder;
pressing and molding the composite amorphous finished product powder into 27 × 15 × 11 amorphous magnetic rings; and annealing the amorphous magnetic ring, wherein the annealing temperature is 450 ℃ and the annealing time is 40 min.
soaking the annealed product in an epoxy resin acetone solution for 10min, and drying and curing at 120 ℃; then, the cured product is subjected to surface insulation layer treatment to obtain a corresponding composite amorphous magnetic powder core.
the performance of the detected target product and the performance of the amorphous powder core prepared by applying the target product in the market are as follows:
The above description is only a preferred embodiment of the present invention, and those skilled in the art may still modify the described embodiment without departing from the implementation principle of the present invention, and the corresponding modifications should also be regarded as the protection scope of the present invention.

Claims (9)

1. The composite amorphous finished powder is characterized by comprising composite amorphous alloy powder, wherein the composite amorphous alloy powder comprises flaky first amorphous powder and spherical second amorphous powder, and the first amorphous powder and the second amorphous powder are uniformly mixed; the surface of the composite amorphous alloy powder is coated with an insulating coating layer.
2. the composite amorphous finished powder of claim 1, wherein the mesh size range of the first amorphous powder is-100 to +270 mesh, and the mesh size range of the second amorphous powder is-200 to +400 mesh.
3. The composite amorphous finished powder of claim 2, wherein the powder ratio of the first amorphous powder is: 10-30% of-100 meshes to +150 meshes, 20-50% of-150 meshes to +200 meshes, and 10-30% of-200 meshes to +270 meshes; the proportion of the second amorphous powder is 10-40%.
4. The composite amorphous finished powder according to claim 1, wherein the powder material used for the first amorphous powder and/or the second amorphous powder is FeSiB amorphous alloy.
5. The composite amorphous final powder according to claim 4, wherein the first amorphous powder and/or the second amorphous powder is made of Fe78Si9B13。
6. The method for preparing composite amorphous finished powder according to any of claims 1 to 5, comprising the steps of:
s1, selecting an amorphous strip to mechanically crush to obtain first amorphous powder;
S2, selecting amorphous alloy to carry out water atomization treatment to obtain second amorphous powder;
s3, proportionally mixing the first amorphous powder and the second amorphous powder to obtain composite amorphous alloy powder;
S4, carrying out insulation coating treatment on the obtained composite amorphous alloy powder to obtain coated powder;
And S5, adding a lubricant into the obtained coating powder, and stirring and mixing the coating powder by a stirrer to obtain the composite amorphous finished product powder.
7. The method of claim 6, wherein in step S4, a first insulation coating method is applied for the insulation coating process, the first insulation coating method comprising the steps of:
S4-01, mixing and attaching inorganic powder to the composite amorphous alloy powder by ultrasonic waves to obtain attached powder;
and S4-02, mixing and fully reacting the alkaline solution with the attached powder, and drying to form an insulating coating layer on the surface of the attached powder, thereby obtaining the coated powder.
8. The production method according to claim 6, wherein the first and/or second amorphous powder contains Fe and/or Si; in step S4, a second insulation coating method is applied to perform insulation coating treatment, the second insulation coating method includes the following steps:
s4-11, preheating and heating a rotary furnace to 240-450 ℃, and adding the composite amorphous alloy powder into the rotary furnace;
and S4-12, continuously introducing oxygen-containing air into the rotary furnace, turning the composite amorphous alloy powder in the rotary furnace, and fully reacting the surface of the composite amorphous alloy powder with the oxygen-containing air to form an insulating coating layer on the surface of the composite amorphous alloy powder to obtain the coated powder.
9. the manufacturing method according to claim 6, wherein in step S4, a third insulation coating method is applied to perform the insulation coating process, the third insulation coating method comprising the steps of:
and S4-31, adding the composite amorphous alloy powder by using a cohesive inorganic substance, and uniformly mixing to form an insulating coating layer on the surface of the composite amorphous alloy powder to obtain the coated powder.
CN201910883448.5A 2019-09-18 2019-09-18 Composite amorphous finished product powder and preparation method thereof Pending CN110571010A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201910883448.5A CN110571010A (en) 2019-09-18 2019-09-18 Composite amorphous finished product powder and preparation method thereof
CN202010047706.9A CN111029079A (en) 2019-09-18 2020-01-16 Composite finished product powder and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910883448.5A CN110571010A (en) 2019-09-18 2019-09-18 Composite amorphous finished product powder and preparation method thereof

Publications (1)

Publication Number Publication Date
CN110571010A true CN110571010A (en) 2019-12-13

Family

ID=68781002

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201910883448.5A Pending CN110571010A (en) 2019-09-18 2019-09-18 Composite amorphous finished product powder and preparation method thereof
CN202010047706.9A Pending CN111029079A (en) 2019-09-18 2020-01-16 Composite finished product powder and preparation method thereof

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN202010047706.9A Pending CN111029079A (en) 2019-09-18 2020-01-16 Composite finished product powder and preparation method thereof

Country Status (1)

Country Link
CN (2) CN110571010A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110935881A (en) * 2019-12-30 2020-03-31 佛山市中研非晶科技股份有限公司 Amorphous nanocrystalline powder baking equipment and use its magnetic powder core production line
CN111029079A (en) * 2019-09-18 2020-04-17 佛山市中研非晶科技股份有限公司 Composite finished product powder and preparation method thereof
CN111068992A (en) * 2019-09-18 2020-04-28 佛山市中研非晶科技股份有限公司 Powder coating method, finished product powder and finished product magnetic powder core preparation method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112908604B (en) * 2021-01-21 2022-07-12 广东省科学院材料与加工研究所 Iron-based amorphous composite magnetic powder core and preparation method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10134525B2 (en) * 2008-05-16 2018-11-20 Hitachi Metals Ltd. Dust core and choke
CN110571010A (en) * 2019-09-18 2019-12-13 佛山市中研非晶科技股份有限公司 Composite amorphous finished product powder and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111029079A (en) * 2019-09-18 2020-04-17 佛山市中研非晶科技股份有限公司 Composite finished product powder and preparation method thereof
CN111068992A (en) * 2019-09-18 2020-04-28 佛山市中研非晶科技股份有限公司 Powder coating method, finished product powder and finished product magnetic powder core preparation method
CN110935881A (en) * 2019-12-30 2020-03-31 佛山市中研非晶科技股份有限公司 Amorphous nanocrystalline powder baking equipment and use its magnetic powder core production line

Also Published As

Publication number Publication date
CN111029079A (en) 2020-04-17

Similar Documents

Publication Publication Date Title
CN110571010A (en) Composite amorphous finished product powder and preparation method thereof
CN110834091B (en) Amorphous finished product powder and preparation method thereof
CN111048274A (en) Composite magnetic powder core and preparation method thereof
CN110600219A (en) Composite amorphous alloy powder and preparation method thereof
CN110735092B (en) Amorphous powder and method for producing same
CN109285685B (en) Preparation method of high-permeability gas-atomized Fe-Si-Al magnetic powder core
CN109423067A (en) A kind of novel oriented silicon steel insulating coating solution, preparation method and application
CN110808138B (en) Amorphous mixed powder, finished powder, magnetic powder core and preparation method thereof
CN110283488B (en) Semi-organic insulating coating for ultrahigh magnetic induction oriented silicon steel and use method thereof
CN110747411B (en) Master alloy for iron-based amorphous alloy
TWI623948B (en) High Permeability Magnetic Sheet
CN110808139B (en) Amorphous magnetic powder core and preparation method thereof
CN110230011B (en) Iron-based amorphous/MXenes composite electromagnetic shielding material for severe corrosion environment and application thereof
CN114247881A (en) Method for realizing in-situ passivation on surface of FeSiAl powder
CN111068992A (en) Powder coating method, finished product powder and finished product magnetic powder core preparation method
Wang et al. Study on the corrosion resistance of sulfonated graphene/aluminum phosphate composites in waterborne polyurethane coatings
CN111029078A (en) Powder insulation coating method, finished product powder and finished product magnetic powder core preparation method
CN111029124A (en) Powder efficient coating method and finished product powder and finished product magnetic powder core preparation method
CN111868303B (en) Method for producing grain-oriented electromagnetic steel sheet, and grain-oriented electromagnetic steel sheet
CN112831200A (en) Coating for chromium-free oriented electromagnetic steel sheet, preparation method thereof and preparation method of chromium-free oriented electromagnetic steel sheet with coating
CN113106358B (en) Iron-based amorphous alloy/graphene wave-absorbing material and preparation method thereof
CN116156858B (en) Zinc oxide coated sheet iron silicon chromium wave-absorbing material and preparation method thereof
CN115064328A (en) Low-power-consumption soft magnetic alloy material and preparation method thereof
CN110699616B (en) Amorphous strip and preparation method thereof
CN111063533B (en) Product surface coating treatment method, magnetic core and magnetic powder core preparation method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20191213