CN105906330A - Neodymium iron boron ultrafine powder sinter box and manufacturing method thereof - Google Patents

Neodymium iron boron ultrafine powder sinter box and manufacturing method thereof Download PDF

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Publication number
CN105906330A
CN105906330A CN201610271944.1A CN201610271944A CN105906330A CN 105906330 A CN105906330 A CN 105906330A CN 201610271944 A CN201610271944 A CN 201610271944A CN 105906330 A CN105906330 A CN 105906330A
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Prior art keywords
parts
iron boron
neodymium iron
sintering magazine
release layer
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CN201610271944.1A
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CN105906330B (en
Inventor
李容军
黄伟超
汤盛龙
熊吉磊
廖春晓
甘家毅
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China Rare Earth Guangxi Jinyuan Rare Earth New Material Co Ltd
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CHINALCO JINYUAN RARE-EARTH Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B35/10—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 aluminium oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
    • C04B41/5031—Alumina
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3817—Carbides
    • C04B2235/3826—Silicon carbides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422—Carbon
    • C04B2235/425—Graphite

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention provides a neodymium iron boron ultrafine powder sinter box and a manufacturing method thereof and belongs to the technical field of injection molding application. The sinter box is made from: corundum, alumina, graphene, silicon carbide, camphene, liquid phenolic resin, silane coupling agent, an antioxidant, absolute ethyl alcohol and a release layer. The neodymium iron boron ultrafine powder sinter box manufactured herein is resistant to high temperature, tolerant to thermal impact, resistant to leakage and stable in chemical property, and the release layer is applied to the inner wall of the sinter box so that the release layer never permeates to neodymium iron boron material during recycling of neodymium iron boron ultrafine powder and that ultrafine powder alloy is enabled to release quickly from the sinter box; the release layer is reusable and lower in cost.

Description

A kind of neodymium iron boron micropowder sintering magazine and preparation method thereof
Technical field
The invention belongs to injection molding applied technical field, particularly relate to a kind of neodymium iron boron micropowder sintering Magazine and preparation method thereof.
Background technology
Neodymium iron boron is the rare earth permanent-magnetic material that the world today is with fastest developing speed.Along with internal and international right The quick growth of NdFeB material demand, the recovery thereby producing iron boron magnet waste material by the emperor himself is asked Topic.Do the comprehensive utilization of neodymium iron boron magnetic body waste material to greatest extent well, for saving resource, falling Real scientific development view, construction economizing type harmonious society, do environmental conservation well, increase economic efficiency, There is the most positive effect, be that we should draw attention during doing recycling economy well A new problem.
Neodymium iron boron magnetic body waste material is basically identical with the composition of neodymium iron boron magnetic body device, substantially by The rare earth (based on neodymium, remaining is praseodymium, gadolinium, holmium, terbium, dysprosium etc.) of about 30%, 60% with On ferrum, remainder is trace element (boron, aluminum, copper, niobium etc.).And airflow milling generation is super Fine powder Rare-Earth Content is up to more than 70%, and it is worth far above normal neodymium iron boron product.
Neodymium iron boron industry micropowder ratio accounts for more than the 1% of normal volume, traditional recovery at present Method needs to burn micropowder the most completely, by the waste recovery produced beyond micropowder Enterprise is collected, and the method separated through series of rare earth recycles, its operation stream Cheng Duo, equipment investment cost are high, the response rate is low, it is impossible to realize in neodymium iron boron micropowder is micro- Secondary element (such as B, Cu, Al, Nb etc.) effectively utilizes.For occur in the recent period by neodymium Ferrum boron micropowder is converted into the method for micropowder alloy recycling, in sintering process, uses and passes The irony sintering magazine of system in pyroprocess easily and micropowder fuses, metaboly, Micropowder alloy is caused to be difficult to after the cooling period depart from irony sintering magazine；And use graphite material Sintering magazine, easily permeated by micropowder during sintering high temperature, occur fusion phenomenon, Cause micropowder alloy to be difficult to after the cooling period depart from graphite material sintering magazine, more can bring into big Amount carbon, is not easy to the recycling of micropowder alloy.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of neodymium iron boron micropowder sintering magazine And preparation method thereof.
The present invention is achieved by the following technical programs.
A kind of neodymium iron boron micropowder sintering magazine that the present invention provides, this sintering magazine is by following heavy The raw material of amount part is made: corundum 50～100 parts, Alumina 20～30 parts, Graphene 3～6 parts, Carborundum 3～6 parts, camphene 1～3 parts, liquid phenolic resin 5～15 parts, silane coupler 3～8 parts, Antioxidant is 0.1～1 part, dehydrated alcohol 15～30 parts.
Further, described silane coupler is vinyl silanes, amino silane, methyl-prop At least one in alkene acyloxy silane.
Further, described antioxidant 1010 and irgasfos 168 mix according to the ratio of 1:3 and Become.
Further, 70 parts of corundum, 25 parts of Alumina, Graphene 4 parts, carborundum 5 parts, camphene 2 parts, liquid phenolic resin 10 parts, silane coupler 6 parts, antioxidant be 0.5 part, anhydrous second Alcohol 25 parts.
Meanwhile, present invention also offers the manufacture method of a kind of neodymium iron boron micropowder sintering magazine, Comprise the following steps:
1) corundum, Alumina are ground to form the powder of 200～500 mesh, then according to ratio weighs just Beautiful jade, Alumina, Graphene, carborundum, camphene, antioxidant, pass through high-speed mixer 1800～2000r/min, 30～40min mix homogeneously, stand-by；
2) dehydrated alcohol, liquid phenolic resin and silane coupler are proportionally taken in reactor In, constant temperature 70～80 DEG C, 150～250r/min stirring 25～30min；
3) by step 1) mixture that obtains adds in reactor, constant temperature 70～80 DEG C, 150～250r/min stirrings 10～15min；
4) mould is made, by step 3 according to the size of sintering magazine) batch mixing that obtains imports mould In tool, pressing mold molding, more than maintenance 24h under the dry environment of 20～30 DEG C；
5) by step 4) the sintering magazine of molding is positioned in the electric kiln of 50～65 DEG C dry Dry 10～20h, it is then placed in the electric kiln of 250～350 DEG C being dried 20～40h, obtains Sintering magazine.
Further, this neodymium iron boron micropowder sintering magazine inwall also adheres to one layer of release layer, institute The release layer stated is made by the raw material of following weight portion: calcium oxide 20～30 parts, three oxidations Aluminum 3～8 parts, calcium stearate 5～8 parts, silicone oil 2～5 parts, liquid phenolic resin 0.5～1 part, anhydrous Ethanol 10～15 parts；Described calcium oxide, alchlor, the particle diameter of calcium stearate are less than 0.05mm。
Further, described release layer is made by the raw material of following weight portion: calcium oxide 25 parts, alchlor 6 parts, calcium stearate 7 parts, silicone oil 3 parts, liquid phenolic resin 0.8 part, Dehydrated alcohol 12 parts.
Further, described release layer thickness is less than 1mm.
Meanwhile, present invention also offers the manufacture method of a kind of neodymium iron boron micropowder sintering magazine, Comprise the following steps:
1) corundum, Alumina are ground to form the powder of 200～500 mesh, then according to ratio weighs just Beautiful jade, Alumina, Graphene, carborundum, camphene, antioxidant, pass through high-speed mixer 1800～2000r/min, 30～40min mix homogeneously, stand-by；
2) dehydrated alcohol, liquid phenolic resin and silane coupler are proportionally taken in reactor In, constant temperature 70～80 DEG C, 150～250r/min stirring 25～30min；
3) by step 1) mixture that obtains adds in reactor, constant temperature 70～80 DEG C, 150～250r/min stirrings 10～15min；
4) mould is made, by step 3 according to the size of sintering magazine) batch mixing that obtains imports mould In tool, pressing mold molding, more than maintenance 24h under the dry environment of 20～30 DEG C；
5) by step 4) the sintering magazine of molding is positioned in the electric kiln of 50～65 DEG C dry Dry 10～20h, it is then placed in the electric kiln of 250～350 DEG C being dried 20～40h, obtains Sintering magazine；
6) release layer mixing, grinds to form particle diameter not by calcium oxide, alchlor, calcium stearate More than the powder of 0.05mm, then according to ratio weighs calcium oxide, alchlor, stearic acid Calcium, silicone oil, liquid phenolic resin, dehydrated alcohol are put in reactor, constant temperature 70～80 DEG C, 150～250r/min stirrings 25～30min；
7) release layer spraying, starch step 6) batch mixing put in flush coater, to sintering magazine spray Being coated with release layer, the thickness of release layer is less than less than 1mm；
8) the sintering magazine being coated with release layer is positioned in the electric kiln of 50～65 DEG C dry Dry 10～20h, it is then placed in the electric kiln of 250～350 DEG C being dried 20～40h, obtains Finished product.
The beneficial effects of the present invention is: the neodymium iron boron micropowder sintering magazine tool that the present invention makes There are the impact of high temperature resistant, cold-hot, impermeable, the performance of stable chemical nature, simultaneously in this burning The inwall of ramming material box is coated with a pull-up mold layer so that in neodymium iron boron micropowder removal process, Release layer both will not penetrate in NdFeB material, and micropowder alloy can be made again rapidly from sintering Magazine spins off；And this release layer can be reused, and has saved cost.
Accompanying drawing explanation
Fig. 1 is the stereochemical structure signal of the neodymium iron boron micropowder sintering magazine of the embodiment of the present invention Figure；
Detailed description of the invention
Technical scheme is described further below, but claimed scope is not limited to In described.
Embodiment one
Present embodiments providing a kind of neodymium iron boron micropowder sintering magazine, this sintering magazine is by following Raw material be made: corundum 50kg, Alumina 20kg, Graphene 3kg, carborundum 3kg, camphane Alkene 1kg, liquid phenolic resin 5kg, silane coupler 3kg, antioxidant are 0.1kg, anhydrous second Alcohol 15kg.Described silane coupler is vinyl silanes, amino silane, methacryloxypropyl At least one in base silane；Described antioxidant 1010 and irgasfos 168 are according to the ratio of 1:3 Mix.
The manufacture method of this sintering magazine is:
1) corundum, Alumina are ground to form the powder of 200 mesh, then according to ratio weigh corundum beautiful, Alumina, Graphene, carborundum, camphene, antioxidant, by high-speed mixer 1800r/min, 30min mix homogeneously, stand-by；
2) dehydrated alcohol, liquid phenolic resin and silane coupler are proportionally taken in reactor In, constant temperature 70 DEG C, 150r/min stir 25min；
3) by step 1) mixture that obtains adds in reactor, constant temperature 70 DEG C, 150r/min Stirring 10min；
4) mould is made, by step 3 according to the size of sintering magazine) batch mixing that obtains imports mould In tool, pressing mold molding, more than maintenance 24h under the dry environment of 20 DEG C；
5) by step 4) molding sintering magazine be positioned in the electric kiln of 50 DEG C be dried 10h, is then placed in the electric kiln of 250 DEG C being dried 20h, obtains sintering magazine.As Shown in Fig. 1, the size of this sintering magazine is respectively L30cm, H15cm, W20cm, D1.5cm.
Embodiment two
Present embodiments providing a kind of neodymium iron boron micropowder sintering magazine, this sintering magazine is by following Raw material be made: corundum 100kg, Alumina 30kg, Graphene 6kg, carborundum 6kg, Camphene 3kg, liquid phenolic resin 15kg, silane coupler 8kg, antioxidant are 1kg, anhydrous Ethanol 30kg.Described silane coupler is vinyl silanes, amino silane, methacryl At least one in TMOS；Described antioxidant 1010 and irgasfos 168 are according to the ratio of 1:3 Example mixes.
The manufacture method of this sintering magazine is:
1) corundum, Alumina are ground to form the powder of 500 mesh, then according to ratio weigh corundum beautiful, Alumina, Graphene, carborundum, camphene, antioxidant, by high-speed mixer 2000r/min, 40min mix homogeneously, stand-by；
2) dehydrated alcohol, liquid phenolic resin and silane coupler are proportionally taken in reactor In, constant temperature 80 DEG C, 250r/min stir 30min；
3) by step 1) mixture that obtains adds in reactor, constant temperature 80 DEG C, 250r/min Stirring 15min；
4) mould is made, by step 3 according to the size of sintering magazine) batch mixing that obtains imports mould In tool, pressing mold molding, more than maintenance 24h under the dry environment of 30 DEG C；
5) by step 4) molding sintering magazine be positioned in the electric kiln of 65 DEG C be dried 20h, is then placed in the electric kiln of 350 DEG C being dried 40h, obtains sintering magazine.As Shown in Fig. 1, the size of this sintering magazine is respectively L30cm, H15cm, W20cm, D1.5cm.
Embodiment three
Present embodiments providing a kind of neodymium iron boron micropowder sintering magazine, this sintering magazine is by following Raw material be made: corundum 70kg, Alumina 25kg, Graphene 4kg, carborundum 5kg, camphane Alkene 2kg, liquid phenolic resin 10kg, silane coupler 6kg, antioxidant are 0.5kg, anhydrous second Alcohol 25kg.Described silane coupler is vinyl silanes, amino silane, methacryloxypropyl At least one in base silane；Described antioxidant 1010 and irgasfos 168 are according to the ratio of 1:3 Mix.
The manufacture method of this sintering magazine is:
1) corundum, Alumina are ground to form the powder of 400 mesh, then according to ratio weigh corundum beautiful, Alumina, Graphene, carborundum, camphene, antioxidant, by high-speed mixer 1900r/min, 35min mix homogeneously, stand-by；
2) dehydrated alcohol, liquid phenolic resin and silane coupler are proportionally taken in reactor In, constant temperature 75 DEG C, 200r/min stir 28min；
3) by step 1) mixture that obtains adds in reactor, constant temperature 75 DEG C, 200r/min Stirring 12min；
4) mould is made, by step 3 according to the size of sintering magazine) batch mixing that obtains imports mould In tool, pressing mold molding, more than maintenance 24h under the dry environment of 25 DEG C；
5) by step 4) molding sintering magazine be positioned in the electric kiln of 55 DEG C be dried 15h, is then placed in the electric kiln of 300 DEG C being dried 30h, obtains sintering magazine.As Shown in Fig. 1, the size of this sintering magazine is respectively L30cm, H15cm, W20cm, D1.5cm.
Embodiment four
The present embodiment provides, and neodymium iron boron micropowder sintering magazine inwall also adheres to a pull-up film Layer, described release layer is made by following raw material: calcium oxide 20kg, alchlor 3kg, Calcium stearate 5kg, silicone oil 2kg, liquid phenolic resin 0.5kg, dehydrated alcohol 10kg；Described Calcium oxide, alchlor, the particle diameter of calcium stearate are less than 0.05mm；Other raw materials are with real Execute example three.
Its manufacture method is the step 5 in embodiment three) afterwards also have following steps:
6) release layer mixing, grinds to form particle diameter not by calcium oxide, alchlor, calcium stearate More than the powder of 0.05mm, then according to ratio weighs calcium oxide, alchlor, stearic acid Calcium, silicone oil, liquid phenolic resin, dehydrated alcohol are put in reactor, constant temperature 70 DEG C, 150r/min Stirring 25min；
7) release layer spraying, starch step 6) batch mixing put in flush coater, to sintering magazine spray Being coated with release layer, the thickness of release layer is less than less than 1mm；
8) the sintering magazine being coated with release layer is positioned in the electric kiln of 50 DEG C dry 10h, is then placed in the electric kiln of 250 DEG C being dried 20h, obtains finished product.
Embodiment five
The present embodiment provides, and neodymium iron boron micropowder sintering magazine inwall also adheres to a pull-up film Layer, described release layer is made by following raw material: calcium oxide 30kg, alchlor 8kg, Calcium stearate 8kg, silicone oil 5kg, liquid phenolic resin 1kg, dehydrated alcohol 15kg；Described Calcium oxide, alchlor, the particle diameter of calcium stearate are less than 0.05mm；Other raw materials are with real Execute example three.
Its manufacture method is the step 5 in embodiment three) afterwards also have following steps:
6) release layer mixing, grinds to form particle diameter not by calcium oxide, alchlor, calcium stearate More than the powder of 0.05mm, then according to ratio weighs calcium oxide, alchlor, stearic acid Calcium, silicone oil, liquid phenolic resin, dehydrated alcohol are put in reactor, constant temperature 80 DEG C, 250r/min Stirring 30min；
7) release layer spraying, starch step 6) batch mixing put in flush coater, to sintering magazine spray Being coated with release layer, the thickness of release layer is less than less than 1mm；
8) the sintering magazine being coated with release layer is positioned in the electric kiln of 65 DEG C dry 20h, is then placed in the electric kiln of 350 DEG C being dried 40h, obtains finished product.
Embodiment six
The present embodiment provides, and neodymium iron boron micropowder sintering magazine inwall also adheres to a pull-up film Layer, described release layer is made by following raw material: calcium oxide 25kg, alchlor 6kg, Calcium stearate 7kg, silicone oil 3kg, liquid phenolic resin 0.8kg, dehydrated alcohol 12kg；Other are former Material is with embodiment three.
Its manufacture method is the step 5 in embodiment three) afterwards also have following steps:
6) release layer mixing, grinds to form particle diameter not by calcium oxide, alchlor, calcium stearate More than the powder of 0.05mm, then according to ratio weighs calcium oxide, alchlor, stearic acid Calcium, silicone oil, liquid phenolic resin, dehydrated alcohol are put in reactor, constant temperature 75 DEG C, 290r/min Stirring 28min；
7) release layer spraying, starch step 6) batch mixing put in flush coater, to sintering magazine spray Being coated with release layer, the thickness of release layer is less than less than 1mm；
8) the sintering magazine being coated with release layer is positioned in the electric kiln of 55 DEG C dry 15h, is then placed in the electric kiln of 300 DEG C being dried 30h, obtains finished product.
Through operation, recycled sinter magnet can split away off easily from sintering magazine, The phenomenon that release layer on sintering magazine comes off without damage, the outer wall of recycled sinter magnet is smooth, Permeate without release layer；This sintering magazine is the most undeformed, be full of cracks, the generation of metachromatism.

Claims (9)

1. neodymium iron boron micropowder sintering magazine, it is characterised in that: this sintering magazine by with The raw material of lower weight portion is made: corundum 50～100 parts, Alumina 20～30 parts, Graphene 3～6 Part, carborundum 3～6 parts, camphene 1～3 parts, liquid phenolic resin 5～15 parts, silane coupler 3～8 Part, antioxidant are 0.1～1 part, dehydrated alcohol 15～30 parts.
2. neodymium iron boron micropowder sintering magazine as claimed in claim 1, it is characterised in that: institute The silane coupler stated is in vinyl silanes, amino silane, methacryloxypropyl silane At least one.
3. neodymium iron boron micropowder sintering magazine as claimed in claim 1, it is characterised in that: institute Antioxidant 1010 and the irgasfos 168 stated mix according to the ratio of 1:3.
4. neodymium iron boron micropowder sintering magazine as claimed in claim 1, it is characterised in that: just 70 parts of jade, 25 parts of Alumina, Graphene 4 parts, carborundum 5 parts, camphene 2 parts, liquid phenolic tree 10 parts of fat, silane coupler 6 parts, antioxidant are 0.5 part, dehydrated alcohol 25 parts.
5. the neodymium iron boron micropowder sintering magazine as described in claim 1 or 4, it is characterised in that: Neodymium iron boron micropowder sintering magazine inwall also adheres to one layer of release layer, and described release layer is by following The raw material of weight portion is made: calcium oxide 20～30 parts, alchlor 3～8 parts, calcium stearate 5～8 parts, silicone oil 2～5 parts, liquid phenolic resin 0.5～1 part, dehydrated alcohol 10～15 parts；Described Calcium oxide, alchlor, calcium stearate particle diameter less than 0.05mm.
6. neodymium iron boron micropowder sintering magazine as claimed in claim 5, it is characterised in that: institute The release layer stated is made by the raw material of following weight portion: calcium oxide 25 parts, alchlor 6 Part, calcium stearate 7 parts, silicone oil 3 parts, liquid phenolic resin 0.8 part, dehydrated alcohol 12 parts.
7. neodymium iron boron micropowder sintering magazine as claimed in claim 5, it is characterised in that: institute The release layer thickness stated is less than 1mm.
8. the making side of the neodymium iron boron micropowder sintering magazine as described in Claims 1 to 4 Method, it is characterised in that comprise the following steps:
1) corundum, Alumina are ground to form the powder of 200～500 mesh, then according to ratio weighs just Beautiful jade, Alumina, Graphene, carborundum, camphene, antioxidant, pass through high-speed mixer 1800～2000r/min, 30～40min mix homogeneously, stand-by；
2) dehydrated alcohol, liquid phenolic resin and silane coupler are proportionally taken in reactor In, constant temperature 70～80 DEG C, 150～250r/min stirring 25～30min；
3) by step 1) mixture that obtains adds in reactor, constant temperature 70～80 DEG C, 150～250r/min stirrings 10～15min；
4) mould is made, by step 3 according to the size of sintering magazine) batch mixing that obtains imports mould In tool, pressing mold molding, more than maintenance 24h under the dry environment of 20～30 DEG C；
5) by step 4) the sintering magazine of molding is positioned in the electric kiln of 50～65 DEG C dry Dry 10～20h, it is then placed in the electric kiln of 250～350 DEG C being dried 20～40h, obtains Sintering magazine.
9. the making side of the neodymium iron boron micropowder sintering magazine as described in claim 1～7 Method, it is characterised in that comprise the following steps:
1) corundum, Alumina are ground to form the powder of 200～500 mesh, then according to ratio weighs just Beautiful jade, Alumina, Graphene, carborundum, camphene, antioxidant, pass through high-speed mixer 1800～2000r/min, 30～40min mix homogeneously, stand-by；
2) dehydrated alcohol, liquid phenolic resin and silane coupler are proportionally taken in reactor In, constant temperature 70～80 DEG C, 150～250r/min stirring 25～30min；
3) by step 1) mixture that obtains adds in reactor, constant temperature 70～80 DEG C, 150～250r/min stirrings 10～15min；
4) mould is made, by step 3 according to the size of sintering magazine) batch mixing that obtains imports mould In tool, pressing mold molding, more than maintenance 24h under the dry environment of 20～30 DEG C；
5) by step 4) the sintering magazine of molding is positioned in the electric kiln of 50～65 DEG C dry Dry 10～20h, it is then placed in the electric kiln of 250～350 DEG C being dried 20～40h, obtains Sintering magazine；
6) release layer mixing, grinds to form particle diameter not by calcium oxide, alchlor, calcium stearate More than the powder of 0.05mm, then according to ratio weighs calcium oxide, alchlor, stearic acid Calcium, silicone oil, liquid phenolic resin, dehydrated alcohol are put in reactor, constant temperature 70～80 DEG C, 150～250r/min stirrings 25～30min；
7) release layer spraying, starch step 6) batch mixing put in flush coater, to sintering magazine spray Being coated with release layer, the thickness of release layer is less than less than 1mm；
8) the sintering magazine being coated with release layer is positioned in the electric kiln of 50～65 DEG C dry Dry 10～20h, it is then placed in the electric kiln of 250～350 DEG C being dried 20～40h, obtains Finished product.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107254656A (en) * 2017-08-17 2017-10-17 桂林电子科技大学 Neodymium-iron-boron permanent magnetic material surface plasma sprayed ceramic layer and preparation method thereof
CN113213969A (en) * 2021-04-19 2021-08-06 杭州电子科技大学 Pretreatment method of crucible for smelting sintered neodymium iron boron and preparation method of sintered neodymium iron boron
CN115138843A (en) * 2022-06-29 2022-10-04 包头金山磁材有限公司 Neodymium iron boron sintering material box and preparation method and application thereof

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JPH04280874A (en) * 1991-03-05 1992-10-06 Toshiba Ceramics Co Ltd Box
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CN104289710A (en) * 2014-09-30 2015-01-21 许用华 Graphite sintering box with exhausting and sealing functions
CN204668141U (en) * 2015-06-25 2015-09-23 浙江中杭新材料股份有限公司 A kind of Sintered NdFeB magnet magazine
CN204686013U (en) * 2015-05-30 2015-10-07 江苏东瑞磁材科技有限公司 A kind of burning boat improving annular NbFeB sintered distortion and crackle

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JPH04280874A (en) * 1991-03-05 1992-10-06 Toshiba Ceramics Co Ltd Box
CN203668457U (en) * 2014-01-25 2014-06-25 宁波可可磁业有限公司 Aging material box for sintering Nd-Fe-B
CN104289710A (en) * 2014-09-30 2015-01-21 许用华 Graphite sintering box with exhausting and sealing functions
CN204686013U (en) * 2015-05-30 2015-10-07 江苏东瑞磁材科技有限公司 A kind of burning boat improving annular NbFeB sintered distortion and crackle
CN204668141U (en) * 2015-06-25 2015-09-23 浙江中杭新材料股份有限公司 A kind of Sintered NdFeB magnet magazine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107254656A (en) * 2017-08-17 2017-10-17 桂林电子科技大学 Neodymium-iron-boron permanent magnetic material surface plasma sprayed ceramic layer and preparation method thereof
CN113213969A (en) * 2021-04-19 2021-08-06 杭州电子科技大学 Pretreatment method of crucible for smelting sintered neodymium iron boron and preparation method of sintered neodymium iron boron
CN113213969B (en) * 2021-04-19 2022-06-28 杭州电子科技大学 Pretreatment method of crucible for smelting sintered neodymium iron boron and preparation method of sintered neodymium iron boron
CN115138843A (en) * 2022-06-29 2022-10-04 包头金山磁材有限公司 Neodymium iron boron sintering material box and preparation method and application thereof
CN115138843B (en) * 2022-06-29 2024-01-23 包头金山磁材有限公司 Neodymium iron boron sintering material box and preparation method and application thereof

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