CN107973596A - A kind of preparation method of automotive electronics magnalium Ferrite Material - Google Patents

A kind of preparation method of automotive electronics magnalium Ferrite Material Download PDF

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CN107973596A
CN107973596A CN201711050679.5A CN201711050679A CN107973596A CN 107973596 A CN107973596 A CN 107973596A CN 201711050679 A CN201711050679 A CN 201711050679A CN 107973596 A CN107973596 A CN 107973596A
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product
obtains
powder
magnalium
pore creating
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杨美华
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Guizhou China Magnetic Electronic Technology Co Ltd
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Guizhou China Magnetic Electronic Technology Co Ltd
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2683—Other ferrites containing alkaline earth metals or lead
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C—CHEMISTRY; METALLURGY
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    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/04—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by dissolving-out added substances
    • C—CHEMISTRY; METALLURGY
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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    • C04B2235/658—Atmosphere during thermal treatment

Abstract

A kind of preparation method the invention discloses automotive electronics with magnalium Ferrite Material, by the sulfuric acid dissolution that the mass percent of magnalium ferrite abrasive dust waste material excess is 45%, excessive aluminium powder, magnesium powder, the mixture of iron powder are added as reducing agent, after reaction is not redissolved to powder, neutralized again through the ammonium hydroxide that mass percent is 26%, filtering, obtains A product；Then A product are mixed with pore creating material, absolute ethyl alcohol, 8 15min of mixed powder is rotated with 250 330 turns/min, obtains B product；Then the compacting of B product is densified to obtain green compact, green compact is put into grinding tool, be put into sintering furnace and be warming up to 640 680 DEG C with the programming rate of 10 14 DEG C/min, keep the temperature 35 45min, then furnace cooling, obtains C product；Then take out after C product into the water, dissolution pore creating material, obtains D product；Then D product are put into sintering furnace, 1,020 1130 DEG C of 5 10h of Isothermal sinter are warming up under the protection of nitrogen, then furnace cooling, obtains finished product.Diffusion velocity between each component of the present invention is fast, good combination property, and qualification rate is high, and manufacture cost is low.

Description

A kind of preparation method of automotive electronics magnalium Ferrite Material
Technical field
The present invention relates to a kind of preparation method of magnalium Ferrite Material, particularly a kind of automotive electronics magnalium ferrite The preparation method of material.
Background technology
Automotive electronics is the general name of electronic control device for vehicle and vehicular automotive electronic device, and automotive electronics is in automotive engineering In occupy vital position, be exploitation new model, improve the most important technical measures of automotive performance.Since automotive interior is deposited In extreme operating temperature range, strong mechanical oscillation and the adverse circumstances factors such as spot is more, it is to be ensured that automotive electronics Properties of product are interference-free, it is necessary to carry out the encapsulation work of product, selected encapsulating material with realize industry lower cost, The technology trends such as stronger function, the reliability of higher.
At present, automotive electronics all uses china-clay method with the preparation of MnZn ferrite material, although the work of traditional ceramics method Skill flow is shorter, but the solid phase reaction diffusion of each material is difficult, and component incomplete mixing, comprehensive magnetic can pay no attention to the qualification for thinking of product Rate is low.Carbonate co-precipitation can overcome the shortcomings of china-clay method, but the cost of raw material is higher, seriously restrict the application of its market.
The content of the invention
A kind of preparation method it is an object of the present invention to provide automotive electronics with magnalium Ferrite Material.It is of the invention each Diffusion velocity between component is fast, good combination property, and qualification rate is high, and manufacture cost is low.
Technical scheme：A kind of automotive electronics preparation method of magnalium Ferrite Material, includes the following steps：
（1）By the mass percent of magnalium ferrite abrasive dust waste material excess be 45% sulfuric acid dissolution, add excessive aluminium powder, Magnesium powder, the mixture of iron powder are reacted to powder after not being redissolved as reducing agent, then through ammonium hydroxide that mass percent is 26% Neutralize, filtering, obtains A product；
（2）A product are mixed with pore creating material, absolute ethyl alcohol ,/mixed powder the 8-15min of min rotations is turned with 250-330, obtains B product；
（3）The compacting of B product is densified to obtain green compact, green compact are put into grinding tool, is put into sintering furnace with the heating speed of 10-14 DEG C/min Degree is warming up to 640-680 DEG C, keeps the temperature 35-45min, then furnace cooling, obtains C product；
（4）After taking-up C product into the water, dissolution pore creating material, obtains D product；
（5）D product are put into sintering furnace, 1020-1130 DEG C of Isothermal sinter 5-10h are warming up under the protection of nitrogen, then with stove Cooling, obtains finished product.
The foregoing automotive electronics preparation method of magnalium Ferrite Material, includes the following steps：
（1）By the mass percent of magnalium ferrite abrasive dust waste material excess be 45% sulfuric acid dissolution, add excessive aluminium powder, Magnesium powder, the mixture of iron powder are reacted to powder after not being redissolved as reducing agent, then through ammonium hydroxide that mass percent is 26% Neutralize, filtering, obtains A product；
（2）A product are mixed with pore creating material, absolute ethyl alcohol, mixed powder 12min is rotated with 290 turns/min, obtains B product；
（3）The compacting of B product is densified to obtain green compact, green compact are put into grinding tool, are put into sintering furnace with the programming rate of 12 DEG C/min 660 DEG C are warming up to, keeps the temperature 40min, then furnace cooling, obtains C product；
（4）After taking-up C product into the water, dissolution pore creating material, obtains D product；
（5）D product are put into sintering furnace, 1070 DEG C of Isothermal sinter 8h are warming up under the protection of nitrogen, then furnace cooling, obtains into Product.
The preparation method of foregoing automotive electronics magnalium Ferrite Material, the step（2）In, the addition weight of pore creating material Measure as the 0.8-1.2% of A product；The addition weight of absolute ethyl alcohol is the 1-3% of A product.
The preparation method of foregoing automotive electronics magnalium Ferrite Material, the step（2）In, the addition weight of pore creating material Measure as the 1% of A product；The addition weight of absolute ethyl alcohol is the 2% of A product.
Beneficial effects of the present invention
The present invention is by improving preparation process, and compared to traditional solid phase method, the diffusion velocity between each component is faster, obtained Material good combination property, qualification rate higher, also, greatly reduce manufacture cost.
Embodiment
With reference to embodiment, the present invention is further illustrated, but is not intended as the foundation limited the present invention.
The embodiment of the present invention
Embodiment 1：A kind of preparation method of automotive electronics magnalium Ferrite Material, step are as follows：
（1）By the mass percent of magnalium ferrite abrasive dust waste material excess be 45% sulfuric acid dissolution, add excessive aluminium powder, Magnesium powder, the mixture of iron powder are reacted to powder after not being redissolved as reducing agent, then through ammonium hydroxide that mass percent is 26% Neutralize, filtering, obtains A product；
（2）A product are mixed with pore creating material, absolute ethyl alcohol, mixed powder 12min is rotated with 290 turns/min, obtains B product；
（3）The compacting of B product is densified to obtain green compact, green compact are put into grinding tool, are put into sintering furnace with the programming rate of 12 DEG C/min 660 DEG C are warming up to, keeps the temperature 40min, then furnace cooling, obtains C product；
（4）After taking-up C product into the water, dissolution pore creating material, obtains D product；
（5）D product are put into sintering furnace, 1070 DEG C of Isothermal sinter 8h are warming up under the protection of nitrogen, then furnace cooling, obtains into Product.
The step（2）In, the addition weight of pore creating material is the 1% of A product；The addition weight of absolute ethyl alcohol is the 2% of A product.
Embodiment 2：A kind of automotive electronics preparation method of magnalium Ferrite Material, includes the following steps：
（1）By the mass percent of magnalium ferrite abrasive dust waste material excess be 45% sulfuric acid dissolution, add excessive aluminium powder, Magnesium powder, the mixture of iron powder are reacted to powder after not being redissolved as reducing agent, then through ammonium hydroxide that mass percent is 26% Neutralize, filtering, obtains A product；
（2）A product are mixed with pore creating material, absolute ethyl alcohol, mixed powder 8min is rotated with 250 turns/min, obtains B product；
（3）The compacting of B product is densified to obtain green compact, green compact are put into grinding tool, are put into sintering furnace with the programming rate of 10 DEG C/min 640 DEG C are warming up to, keeps the temperature 35min, then furnace cooling, obtains C product；
（4）After taking-up C product into the water, dissolution pore creating material, obtains D product；
（5）D product are put into sintering furnace, 1020 DEG C of Isothermal sinter 5h are warming up under the protection of nitrogen, then furnace cooling, obtains into Product.
The step（2）In, the addition weight of pore creating material is the 0.8% of A product；The addition weight of absolute ethyl alcohol is A product 1%。
Embodiment 3：A kind of automotive electronics preparation method of magnalium Ferrite Material, includes the following steps：
（1）By the mass percent of magnalium ferrite abrasive dust waste material excess be 45% sulfuric acid dissolution, add excessive aluminium powder, Magnesium powder, the mixture of iron powder are reacted to powder after not being redissolved as reducing agent, then through ammonium hydroxide that mass percent is 26% Neutralize, filtering, obtains A product；
（2）A product are mixed with pore creating material, absolute ethyl alcohol, mixed powder 15min is rotated with 330 turns/min, obtains B product；
（3）The compacting of B product is densified to obtain green compact, green compact are put into grinding tool, are put into sintering furnace with the programming rate of 14 DEG C/min 680 DEG C are warming up to, keeps the temperature 45min, then furnace cooling, obtains C product；
（4）After taking-up C product into the water, dissolution pore creating material, obtains D product；
（5）D product are put into sintering furnace, 1130 DEG C of Isothermal sinter 10h are warming up under the protection of nitrogen, then furnace cooling, obtains Finished product.
The step（2）In, the addition weight of pore creating material is the 1.2% of A product；The addition weight of absolute ethyl alcohol is A product 3%。

Claims (4)

1. a kind of automotive electronics preparation method of magnalium Ferrite Material, it is characterised in that include the following steps：
（1）By the mass percent of magnalium ferrite abrasive dust waste material excess be 45% sulfuric acid dissolution, add excessive aluminium powder, Magnesium powder, the mixture of iron powder are reacted to powder after not being redissolved as reducing agent, then through ammonium hydroxide that mass percent is 26% Neutralize, filtering, obtains A product；
（2）A product are mixed with pore creating material, absolute ethyl alcohol ,/mixed powder the 8-15min of min rotations is turned with 250-330, obtains B product；
（3）The compacting of B product is densified to obtain green compact, green compact are put into grinding tool, is put into sintering furnace with the heating speed of 10-14 DEG C/min Degree is warming up to 640-680 DEG C, keeps the temperature 35-45min, then furnace cooling, obtains C product；
（4）After taking-up C product into the water, dissolution pore creating material, obtains D product；
（5）D product are put into sintering furnace, 1020-1130 DEG C of Isothermal sinter 5-10h are warming up under the protection of nitrogen, then with stove Cooling, obtains finished product.
2. the automotive electronics according to claim 1 preparation method of magnalium Ferrite Material, it is characterised in that：Including such as Lower step：
（1）By the mass percent of magnalium ferrite abrasive dust waste material excess be 45% sulfuric acid dissolution, add excessive aluminium powder, Magnesium powder, the mixture of iron powder are reacted to powder after not being redissolved as reducing agent, then through ammonium hydroxide that mass percent is 26% Neutralize, filtering, obtains A product；
（2）A product are mixed with pore creating material, absolute ethyl alcohol, mixed powder 12min is rotated with 290 turns/min, obtains B product；
（3）The compacting of B product is densified to obtain green compact, green compact are put into grinding tool, are put into sintering furnace with the programming rate of 12 DEG C/min 660 DEG C are warming up to, keeps the temperature 40min, then furnace cooling, obtains C product；
（4）After taking-up C product into the water, dissolution pore creating material, obtains D product；
（5）D product are put into sintering furnace, 1070 DEG C of Isothermal sinter 8h are warming up under the protection of nitrogen, then furnace cooling, obtains into Product.
3. the automotive electronics according to claim 1 or 2 preparation method of magnalium Ferrite Material, it is characterised in that：Institute State step（2）In, the addition weight of pore creating material is the 0.8-1.2% of A product；The addition weight of absolute ethyl alcohol is the 1-3% of A product.
4. the automotive electronics according to claim 3 preparation method of magnalium Ferrite Material, it is characterised in that：The step Suddenly（2）In, the addition weight of pore creating material is the 1% of A product；The addition weight of absolute ethyl alcohol is the 2% of A product.
CN201711050679.5A 2017-10-31 2017-10-31 A kind of preparation method of automotive electronics magnalium Ferrite Material Pending CN107973596A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103964827B (en) * 2014-04-29 2015-07-08 湖北华磁电子科技有限公司 Preparation method of manganese zinc ferrite material for automotive electronic
CN105936992A (en) * 2016-07-13 2016-09-14 蚌埠市时代电子有限公司 Carbon monofluoride enhanced aluminum magnesium alloy material for automobile electronic packaging and preparing method thereof
CN106048324A (en) * 2016-07-13 2016-10-26 安徽祈艾特电子科技股份有限公司 Carbon nano tube reinforced aluminum-magnesium composite alloy material for automobile electronic packaging and preparation method of alloy material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103964827B (en) * 2014-04-29 2015-07-08 湖北华磁电子科技有限公司 Preparation method of manganese zinc ferrite material for automotive electronic
CN105936992A (en) * 2016-07-13 2016-09-14 蚌埠市时代电子有限公司 Carbon monofluoride enhanced aluminum magnesium alloy material for automobile electronic packaging and preparing method thereof
CN106048324A (en) * 2016-07-13 2016-10-26 安徽祈艾特电子科技股份有限公司 Carbon nano tube reinforced aluminum-magnesium composite alloy material for automobile electronic packaging and preparation method of alloy material

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
林其壬: "《铁氧体工艺原理》", 30 April 1987, 上海：上海科学技术出版社 *
胡国光: ""Al3+ 替代对Mg- Mn 微波铁氧体性能的影响"", 《安徽大学学报 (自然科学版)》 *
陈大明: "《先进陶瓷材料的助凝技术与应用》", 30 November 2011, 国防工业出版社 *

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Application publication date: 20180501