CN105803240A - Preparation method of porous foam metal - Google Patents
Preparation method of porous foam metal Download PDFInfo
- Publication number
- CN105803240A CN105803240A CN201610206403.0A CN201610206403A CN105803240A CN 105803240 A CN105803240 A CN 105803240A CN 201610206403 A CN201610206403 A CN 201610206403A CN 105803240 A CN105803240 A CN 105803240A
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- China
- Prior art keywords
- sponge
- powder
- temperature
- porous foam
- foam metal
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- Granted
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 45
- 239000002184 metal Substances 0.000 title claims abstract description 45
- 239000006260 foam Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 65
- 239000011248 coating agent Substances 0.000 claims abstract description 31
- 238000000576 coating method Methods 0.000 claims abstract description 31
- 238000005245 sintering Methods 0.000 claims abstract description 22
- 238000005520 cutting process Methods 0.000 claims abstract description 13
- 238000009766 low-temperature sintering Methods 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 39
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000000428 dust Substances 0.000 claims description 29
- 239000003292 glue Substances 0.000 claims description 28
- 239000000243 solution Substances 0.000 claims description 26
- 238000009413 insulation Methods 0.000 claims description 24
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 23
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 23
- 239000004568 cement Substances 0.000 claims description 22
- 239000008367 deionised water Substances 0.000 claims description 21
- 229910021641 deionized water Inorganic materials 0.000 claims description 21
- 229920001971 elastomer Polymers 0.000 claims description 20
- 229910052757 nitrogen Inorganic materials 0.000 claims description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 239000000853 adhesive Substances 0.000 claims description 18
- 230000001070 adhesive effect Effects 0.000 claims description 18
- 239000013530 defoamer Substances 0.000 claims description 18
- 239000007769 metal material Substances 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 18
- 230000018044 dehydration Effects 0.000 claims description 17
- 238000006297 dehydration reaction Methods 0.000 claims description 17
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 16
- 238000007667 floating Methods 0.000 claims description 16
- 238000002386 leaching Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- 230000003647 oxidation Effects 0.000 claims description 16
- 238000007254 oxidation reaction Methods 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- -1 Polydimethylsiloxane Polymers 0.000 claims description 13
- 229910002804 graphite Inorganic materials 0.000 claims description 13
- 239000010439 graphite Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 9
- 239000003513 alkali Substances 0.000 claims description 8
- 229910021529 ammonia Inorganic materials 0.000 claims description 8
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 claims description 8
- 238000005336 cracking Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000007788 roughening Methods 0.000 claims description 8
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 7
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 7
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 229920000570 polyether Polymers 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 238000010790 dilution Methods 0.000 claims description 5
- 239000012895 dilution Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 229910000792 Monel Inorganic materials 0.000 claims description 4
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 4
- 239000004141 Sodium laurylsulphate Substances 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 239000002518 antifoaming agent Substances 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 4
- 108010010803 Gelatin Proteins 0.000 claims description 3
- 238000011001 backwashing Methods 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000003763 carbonization Methods 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims description 3
- 229920000159 gelatin Polymers 0.000 claims description 3
- 239000008273 gelatin Substances 0.000 claims description 3
- 235000019322 gelatine Nutrition 0.000 claims description 3
- 235000011852 gelatine desserts Nutrition 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229910001120 nichrome Inorganic materials 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 abstract description 4
- 239000000956 alloy Substances 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910001092 metal group alloy Inorganic materials 0.000 abstract description 2
- 230000004913 activation Effects 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 238000005238 degreasing Methods 0.000 abstract 1
- 235000012054 meals Nutrition 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 230000002829 reductive effect Effects 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 239000007787 solid Substances 0.000 description 6
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 5
- 235000011613 Pinus brutia Nutrition 0.000 description 5
- 241000018646 Pinus brutia Species 0.000 description 5
- 238000012387 aerosolization Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 238000005303 weighing Methods 0.000 description 5
- 238000010422 painting Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 229910018487 Ni—Cr Inorganic materials 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- WBJINCZRORDGAQ-UHFFFAOYSA-N formic acid ethyl ester Natural products CCOC=O WBJINCZRORDGAQ-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/08—Alloys with open or closed pores
-
- 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
- B22F3/11—Making porous workpieces or articles
- B22F3/1121—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Filtering Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a preparation method of porous foam metal. The preparation method of the porous foam metal is characterized by comprising the steps of degreasing and coarsening, surface activation, dewatering, coating of metal powder, cutting, low-temperature sintering and splitting decomposition and oxidative and reductive sintering. The preparation method is scientific, reasonable, simple, practical, easy to implement, and capable of saving energy and reducing consumption; the manufacturing cost is low, and the quality is high; alloy elements can be adjusted according to requirements, and porous foam metal with the pore density being 8 ppi-150 ppi can be prepared; porous foam metal with the pore diameter being 0.05 mm-5.0 mm and the thickness being 0.1 mm-100 mm can also be produced; porous foam metal with the width being 800 mm and the length being 2000 mm can also be prepared; and the application range is wide, and the preparation method can be used for preparing pure foam meal and foam metal alloy.
Description
Technical field
The present invention relates to powder metallurgy porous material, be a kind of porous foam metal material preparation method.
Background technology
Existing powder metallurgy porous material also known as porous sintered material, its preparation be by spherical, near-spherical simple metal or
Alloy powder is made through molding, sintering, and the internal gutter of material is 3-D solid structure, and interpenetrates.Porosity: 30%
～60%, aperture: 1～100um, powder-making technique is the key determining porous sintered material quality.Have no so far and this through retrieval
The document that inventive method is identical is reported and application.
Summary of the invention
It is an object of the present invention to provide a kind of methodological science reasonable, the most applicable, easily operate, energy-saving and cost-reducing；Cost of manufacture
Low, quality is good, porous foam metal material preparation method applied widely.
Realize the object of the invention employed technical scheme comprise that, a kind of porous foam metal material preparation method, it is characterized in that,
It comprises the following steps:
1) de-ester roughening
The sodium hydroxide solution of preparation molar concentration 4.0 mol/L, stirs, is heated to 30 DEG C, be totally immersed into by sponge molten
3min in liquid, takes out, and 30 DEG C of warm water countercurrent backwashings are except alkali liquor, with rubber roll extruding part moisture, then dries up stand-by with exhaust fan；
2) surface active
Preparation surface active liquid: by quality % proportioning, surfactant: 5%, defoamer: 0.2%, balance deionized water, by sponge
Immerse in surface active liquid, extrude redundant solution with rubber roll, eliminate sponge string diameter surface tension；
3) dehydration
Sponge is used exhaust fan forced dehydration, wind speed 3m/s, air quantity 1800m3/ h, moisture control is < in the range of 15%；
4) aqueous non-setting adhesive cement is soaked
Water-based glue performance indications
Composition: acrylic acid
Gu composition: 53 ± 2%
Viscosity: 2200～2500ps/25 DEG C
PH value: 79
First acrylic acid original gelatin and deionized water are pressed 1:1 dilution proportion mix homogeneously, uses cement dipping machine by long-pending for sponge leaching dilute
Release water soluble acrylic acid glue, adjust roller gap according to sponge thickness, it is ensured that glue liquid surface height, gluing uniformity, without sealing of hole,
And by multiple tracks, roller is squeezed equal glue, air draft is dehydrated, ambient temperature 15～20 DEG C, the moisture content < 15% of sponge after leaching is long-pending；
5) coating metal dust
Use metal dust coating machine, the required metal dust of coating, metal dust be spherical, class is spherical or irregularly shaped ,-
325 mesh～1250 mesh, the upper powder amount of metal dust is 0.15g/cm3～0.8g/cm3, it is ensured that the upper powder of coating metal dust is uniform
Unanimously, without holiday, and removing floating powder, floating powder accounts for powder amount < 5%；
6) cutting
Require to reserve amount of contraction and processing capacity cutting required size according to product size；
7) low-temperature sintering and cracking
Being placed on graphite supporting plate by sponge after coating puts in baking oven, with 99.8% nitrogen protection, nitrogen flow 3m3/ h, 180 DEG C
It is incubated 25 min, 220 DEG C of insulation 30 min, 280 DEG C of insulation 30 min, 360 DEG C of insulation 20 min, by sponge carbonization, and makes gold
Belong to powder formation low temperature to harden, form stable foam structure；
8) oxidoreduction sintering processes
With net belt type oxidoreduction stove, oxidation panel temperature: the first warm area 360 DEG C, the second warm area 410 DEG C, 480 DEG C, three-temperature-zone,
580 DEG C, four-temperature region, the 5th temperature 650 DEG C, network speed: 14m/h,
Oxidation panel entrance door opened height 200mm, port opening height 80mm, flue damper 220mm full open, it is ensured that sponge
Carbonized bodies all gasifies,
It is to be determined by metal dust absolute melting point temperature Tm that sintering temperature sets, and sintering temperature is each constituent element in metal powder opisthosoma
0.8-0.95Tm below fusing point, decomposed ammonia: 14m3/ h, outlet nitrogen amount: 10 m3/ h, prepares porous foam metal material
Material finished product.
Described metal dust is fine copper powder, signal bronze powder, iron-copper alloy powder, monel powder or nickel chromium triangle
Alloy powder.
Described surfactant is 0P-10 or sodium lauryl sulphate.
Described defoamer is the polydimethylsiloxane defoamer in organic silicon defoamer or organic silicon modified by polyether disappears
Infusion.
The advantage of a kind of porous foam metal material preparation method of the present invention is embodied in:
1. preparation method is scientific and reasonable, the most applicable, easily operates, energy-saving and cost-reducing；
2. cost of manufacture is low, and quality is good；
3. alloying component can adjust according to demand, 8ppi～150ppi all can make, aperture: 5.0-0.05mm；
4. product thickness: 100-0.1mm all can produce；
5. product width: 800mm, length: 2000mm；
6. it is widely used, can be used for preparing foam simple metal, foam metal alloy.
Detailed description of the invention
The present invention is a kind of porous foam metal material preparation method, comprises the following steps:
1) de-ester roughening
The sodium hydroxide solution of preparation molar concentration 4.0 mol/L, stirs, is heated to 30 DEG C, be totally immersed into by sponge molten
3min in liquid, takes out, and 30 DEG C of warm water countercurrent backwashings are except alkali liquor, with rubber roll extruding part moisture, then dries up stand-by with exhaust fan；
2) surface active
Preparation surface active liquid: by quality % proportioning, surfactant: 5%, defoamer: 0.2%, balance deionized water, by sponge
Immerse in surface active liquid, extrude redundant solution with rubber roll, eliminate sponge string diameter surface tension；
3) dehydration
Sponge is used exhaust fan forced dehydration, wind speed 3m/s, air quantity 1800m3/ h, moisture control is < in the range of 15%；
4) aqueous non-setting adhesive cement is soaked
Water-based glue performance indications
Composition: acrylic acid
Gu composition: 53 ± 2%
Viscosity: 2200～2500ps/25 DEG C
PH value: 79
Meet European Union's ROHS standard and SGS detection, first acrylic acid original gelatin and deionized water are pressed 1:1 dilution proportion and mixes all
Even, use cement dipping machine by sponge leaching long-pending dilution aqueous acrylate glue water, adjust roller gap according to sponge thickness, it is ensured that glue liquid surface
Highly, gluing uniformity, without sealing of hole, and by multiple tracks, roller is squeezed equal glue, air draft is dehydrated, ambient temperature 15～20 DEG C, and leaching is long-pending
The moisture content < 15% of rear sponge；
5) coating metal dust
Use metal dust coating machine, the required metal dust of coating, metal dust be spherical, class is spherical or irregularly shaped ,-
325 mesh～1250 mesh, the upper powder amount of metal dust is 0.15g/cm3～0.8g/cm3, it is ensured that the upper powder of coating metal dust is uniform
Unanimously, without holiday, and removing floating powder, floating powder accounts for powder amount < 5%；
6) cutting
Require to reserve amount of contraction and processing capacity cutting required size according to product size；
7) low-temperature sintering and cracking
Being placed on graphite supporting plate by sponge after coating puts in baking oven, with 99.8% nitrogen protection, nitrogen flow 3m3/ h, 180 DEG C
It is incubated 25 min, 220 DEG C of insulation 30 min, 280 DEG C of insulation 30 min, 360 DEG C of insulation 20 min, by sponge carbonization, and makes gold
Belong to powder formation low temperature to harden, form stable foam structure；
8) oxidoreduction sintering processes
With net belt type oxidoreduction stove, oxidation panel temperature: the first warm area 360 DEG C, the second warm area 410 DEG C, 480 DEG C, three-temperature-zone,
580 DEG C, four-temperature region, the 5th temperature 650 DEG C, network speed: 14m/h,
Oxidation panel entrance door opened height 200mm, port opening height 80mm, flue damper 220mm full open, it is ensured that sponge
Carbonized bodies all gasifies,
It is to be determined by metal dust absolute melting point temperature Tm that sintering temperature sets, and sintering temperature is each constituent element in metal powder opisthosoma
0.8-0.95Tm below fusing point, decomposed ammonia: 14m3/ h, outlet nitrogen amount: 10 m3/ h, prepares porous foam metal material
Material finished product.
Described metal dust is fine copper powder, signal bronze powder, iron-copper alloy powder, monel powder or nickel chromium triangle
Alloy powder.
Described surfactant is 0P-10 or sodium lauryl sulphate.
Described defoamer is the polydimethylsiloxane defoamer in organic silicon defoamer or organic silicon modified by polyether disappears
Infusion.
Embodiment 1: use a kind of porous foam metal material preparation method of the present invention to prepare foam fine copper
By sponge cutting: 110ppi 10mm is thick, long: 500mm, width: 500mm, and graphite cake is long: 550mm, width: 550mm, thickness:
6mm；
1) de-ester roughening
Sodium hydroxide solution is prepared: 160g solid sodium hydroxide of weighing, and proceeds to, in the beaker of cleaning, add in beaker
996ml deionized water, stirs, and is heated to 30 DEG C, and sponge is totally immersed into 3min in solution, takes out, 30 DEG C of warm water adverse currents
Backwash removes alkali liquor, with rubber roll extruding part moisture, then dries up stand-by with exhaust fan；
2) surface active
Treatment fluid is prepared: deionized water 9.5kg, is initially charged 0.02kg polydimethylsiloxane defoamer, adds 0.5kg's
OP-10, stirs stand-by, is totally immersed in solution by sponge, extrudes redundant solution with rubber roll, eliminates sponge string diameter surface and opens
Power；
3) dehydration
Sponge is used exhaust fan forced dehydration, wind speed 3m/s, air quantity 1800m3/ h, moisture control is < in the range of 15%；
4) aqueous non-setting adhesive cement is soaked
Water-based glue performance indications
Composition: acrylic acid
Gu composition: 53 ± 2%
Viscosity: 2200～2500ps/25 DEG C
PH value: 79
Acrylic acid non-setting adhesive cement is allocated: meets European Union's ROHS standard and SGS detection, takes the acrylic acid aqueous non-setting adhesive cement of 1kg and add 1kg
Deionized water stirs, and uses cement dipping machine by sponge leaching long-pending dilution aqueous acrylate glue water, adjusts roller according to sponge thickness
Gap, it is ensured that glue liquid surface height, gluing uniformity, without sealing of hole, and by multiple tracks, roller is squeezed equal glue, air draft is dehydrated, environment temperature
Spend 15～20 DEG C, the moisture content < 15% of sponge after leaching is long-pending；
5) coating metal dust
Select-325 mesh aerosolization irregularly shaped fine copper powder, copper content 99.5%, pine dress ratio 2.5～3.0/cm3, use powder
Coating machine, uniformly hangs sponge one layer of fine copper powder of painting, and is removed by floating powder vibrating method, and floating powder content is less than total upper powder amount
< 5%, after upper powder, body density is 0.25～0.5g/cm3Between, without sealing of hole；
6) low-temperature sintering and cracking
Sponge after coating is placed on 550*550*6mm graphite supporting plate, sends in 180 DEG C of baking ovens, be incubated 25min, 220 DEG C of insulations
30min, 280 DEG C of insulation 30min, 360 DEG C of insulation 20min, and it is passed through 99.8% nitrogen, flow 3 m3/h；
7) oxidoreduction sintering processes
Heat-processing equipment: net belt type oxidation and sinter stove
Oxidation panel temperature: the first warm area 360 DEG C, the second warm area 420 DEG C, 520 DEG C, three-temperature-zone, 650 DEG C, four-temperature region, the 5th temperature
560 DEG C of district, network speed: 14m/h,
Reduction sintering stage temperature: the first warm area 950 DEG C, the second warm area 1030 DEG C, 960 DEG C, three-temperature-zone, four-temperature region
880 DEG C, the 5th warm area 820 DEG C, network speed: 12m/h, decomposed ammonia: 14m3/ h, outlet nitrogen amount: 10 m3/ h, preparation
Obtain foam fine copper finished product.
Embodiment 2: use a kind of porous foam metal material preparation method of the present invention to prepare foam copper ashbury metal
By sponge cutting: 110ppi 10mm is thick, long: 500mm, width: 500mm, and graphite cake is long: 550mm, width: 550mm, thickness:
6mm；
1) de-ester roughening
Sodium hydroxide solution is prepared: 160g solid sodium hydroxide of weighing, and proceeds to, in the beaker of cleaning, add in beaker
996ml deionized water.Stir, be heated to 30 DEG C, sponge is totally immersed into 3 min in solution, take out, put in clear water
Except alkali liquor, with rubber roll extruding part moisture, then dry up stand-by with exhaust fan；
2) surface active
Treatment fluid is prepared: deionized water 9.5kg is initially charged 0.02kg polydimethylsiloxane defoamer, adds the OP-of 0.5kg
10, stir stand-by, sponge is totally immersed in solution, extrudes redundant solution with rubber roll；
3) dehydration
Sponge is used exhaust fan forced dehydration, wind speed 3m/s, air quantity 1800m3/ h, moisture control is < in the range of 15%；
4) the long-pending acrylic acid aqueous non-setting adhesive cement of leaching
Acrylic acid non-setting adhesive cement is allocated: takes the acrylic acid aqueous non-setting adhesive cement of 1kg and adds 1kg deionized water and stir, is put by sponge
Entering to adjust in the glue got togather, then extrude unnecessary glue with rubber roll, and by multiple tracks, roller is squeezed equal glue, exhaust fan is dehydrated, environment
Temperature 15～20 DEG C, the moisture content < 15% of sponge after leaching is long-pending；
5) coating metal dust
Select-325 irregularly shaped pre-signal bronze powder of mesh aerosolization, metal powder constituent: 5% stannum, surplus: copper, pine dress
Ratio 2.5～3.0/cm3, use powder coating machine, sponge is uniformly hung one layer of pre-signal bronze powder of painting, and by the floating powder side of vibrating
Method is removed, and < 5%, after upper powder, body density is at 0.25～0.5g/ cm less than total upper powder amount for floating powder content3Between；
6) low-temperature sintering and cracking
Sponge after coating is placed on 550*550*6mm graphite supporting plate, sends in 180 DEG C of baking ovens, be incubated 25min, 220 DEG C of insulations
30min, 280 DEG C of insulation 30min, 360 DEG C of insulation 20min, and it is passed through 99.8% nitrogen, flow 3 m3/n；
7) oxidoreduction sintering processes
Heat-processing equipment: net belt type oxidation and sinter stove,
Oxidation panel temperature: the first warm area 360 DEG C, the second warm area 420 DEG C, 520 DEG C, three-temperature-zone, 650 DEG C, four-temperature region, the 5th temperature
560 DEG C of district, network speed: 14m/h,
Reduction sintering stage: the first warm area 820 DEG C, the second warm area: 900 DEG C, 860 DEG C, three-temperature-zone, four-temperature region: 800 DEG C, the 5th
Warm area 740 DEG C, network speed: 14m/h, decomposed ammonia: 18m3/ h, nitrogen: 20m3/ h, prepares foam copper ashbury metal finished product.
Embodiment 3: use a kind of porous foam metal material preparation method of the present invention to prepare foamed iron copper alloy
By sponge cutting: 20ppi 20mm is thick, long: 500mm, width: 500mm, and graphite cake is long: 550mm, wide: 550mm,
Thick 6mm；
1) de-ester roughening
Sodium hydroxide solution is prepared: 160g solid sodium hydroxide of weighing, and proceeds to, in the beaker of cleaning, add in beaker
996ml deionized water, stirs, and is heated to 30 DEG C, and sponge is totally immersed into 3 min in solution, takes out, puts in clear water
Except alkali liquor, with rubber roll extruding part moisture, then dry up stand-by with exhaust fan；
2) surface active:
Treatment fluid is prepared: deionized water 9.5kg is initially charged 0.02kg Polyether Modified Polysiloxanes Defoaming Agent, adds the ten of 0.5kg
Sodium dialkyl sulfate, stirs stand-by, is totally immersed in solution by sponge, extrudes redundant solution with rubber roll；
3) dehydration
Sponge is used exhaust fan forced dehydration, wind speed 3m/s, air quantity 1800m3/ h, moisture control is < in the range of 15%；
4) the long-pending acrylic acid aqueous non-setting adhesive cement of leaching
Acrylic acid non-setting adhesive cement is allocated: takes the acrylic acid aqueous non-setting adhesive cement of 1kg and adds 1kg deionized water and stir；
Sponge is put into and adjusts in the glue that gets togather, then extrude unnecessary glue with rubber roll, and by multiple tracks, roller squeezed equal glue, air draft
Fan dehydration, ambient temperature 15～20 DEG C, the moisture content < 15% of sponge after leaching is long-pending；
5) coating metal dust
Select-325 irregularly shaped pre-iron-copper alloy powders of mesh aerosolization, the composition of iron-copper powder: ferrum 70%, copper 30%, pine
Dress ratio 2.5～3.0/cm3, use powder coating machine, sponge is uniformly hung one layer of pre-iron-copper alloy powder of painting, and by floating powder with vibrating
Method is removed, and < 5%, after upper powder, body density is 0.25～0.5g/cm less than total upper powder amount for floating powder content3Between；
6) low-temperature sintering and cracking
Sponge after coating is placed on 550*550*6mm graphite supporting plate, sends in 180 DEG C of baking ovens, be incubated 25min, 220 DEG C of insulations
30min, 280 DEG C of insulation 30min, 360 DEG C of insulation 20min, and it is passed through 99.8% nitrogen, flow 3 m3/h；
7) oxidoreduction sintering processes
Heat-processing equipment: net belt type oxidation and sinter stove,
Oxidation panel temperature: the first warm area 360 DEG C, the second warm area 420 DEG C, 520 DEG C, three-temperature-zone, 650 DEG C, four-temperature region, the 5th temperature
560 DEG C of district, network speed: 12m/h,
Reduction sintering stage: the first warm area 920 DEG C, the second warm area 980 DEG C, 1050 DEG C, three-temperature-zone, 960 DEG C, four-temperature region, the 5th
Warm area 860 DEG C, network speed: 12m/h, decomposed ammonia: 15m3/ h, nitrogen: 20m3/ h, prepares foamed iron copper alloy finished product.
Embodiment 4: use a kind of porous foam metal material preparation method of the present invention to prepare nickel foam copper alloy
By sponge cutting: 10ppi 20mm is thick, long: 500mm, width: 500mm, graphite cake is long: 550mm, width: 550mm
Thick: 6mm；
1) de-ester roughening
Sodium hydroxide solution is prepared: 160g solid sodium hydroxide of weighing, and proceeds to, in the beaker of cleaning, add in beaker
996ml deionized water, stirs, and is heated to 30 DEG C, and sponge is totally immersed into 3 min in solution, takes out, puts in clear water
Except alkali liquor, with rubber roll extruding part moisture, then dry up stand-by with exhaust fan；
2) surface active:
Treatment fluid is prepared: deionized water 9.5kg is initially charged 0.02kg Polyether Modified Polysiloxanes Defoaming Agent, adds the ten of 0.5kg
Sodium dialkyl sulfate, stirs stand-by, is totally immersed in solution by sponge, extrudes redundant solution with rubber roll；
3) dehydration
Sponge is used exhaust fan forced dehydration, wind speed 3m/s, air quantity 1800m3/ h, moisture control is < in the range of 15%；
4) the long-pending acrylic acid aqueous non-setting adhesive cement of leaching
Acrylic acid non-setting adhesive cement is allocated: takes the acrylic acid aqueous non-setting adhesive cement of 1kg and adds 1kg deionized water and stir, is put by sponge
Enter to adjust in the glue that gets togather, then extrude unnecessary glue with rubber roll, and by multiple tracks, roller squeezed equal glue.Exhaust fan is dehydrated, environment
Temperature 15～20 DEG C, the moisture content < 15% of sponge after leaching is long-pending；
5) coating metal dust
Select-325 irregularly shaped pre-Ni alloy powders of mesh aerosolization, alloying component nickel 70%, copper 30%, pine dress than 2.5～
3.0/cm3,
Use powder coating machine, sponge is uniformly hung one layer of pre-monel powder of painting, and floating powder vibrating method is removed, floating
< 5%, after upper powder, body density is 0.25～0.5g/cm less than total upper powder amount for powder content3Between；
6) low-temperature sintering and cracking
Sponge after coating is placed on 550*550*6mm graphite supporting plate, sends in 180 DEG C of baking ovens, be incubated 25min, 220 DEG C of insulations
30min, 280 DEG C of insulation 30min, 360 DEG C of insulation 20min, and it is passed through 99.8% nitrogen, flow 3 m3/h；
7) oxidoreduction sintering processes
Heat-processing equipment: net belt type oxidation and sinter stove,
Oxidation panel temperature: the first warm area 360 DEG C, the second warm area 420 DEG C, 520 DEG C, three-temperature-zone, 650 DEG C, four-temperature region, the 5th temperature
560 DEG C of district, network speed: 14m/h,
Reduction sintering stage: the first warm area 920 DEG C, the second warm area 980 DEG C, 1070 DEG C, three-temperature-zone, 1010 DEG C, four-temperature region,
5th warm area 910 DEG C, network speed: 14m/h, decomposed ammonia: 18m3/ h, nitrogen: 20m3/ h, prepares nickel foam copper alloy
Finished product.
Embodiment 5: use a kind of porous foam metal material preparation method of the present invention to prepare nickel foam evanohm
By sponge cutting: 120ppi 10mm is thick, long: 500mm, width: 500mm, and graphite cake is long: 550mm, width: 550mm, thickness:
6mm,
1) de-ester roughening
Sodium hydroxide solution is prepared: 160g solid sodium hydroxide of weighing, and proceeds to, in the beaker of cleaning, add in beaker
996ml deionized water, stirs, and is heated to 30 DEG C, and sponge is totally immersed into 3 min in solution, takes out, puts in clear water
Except alkali liquor, with rubber roll extruding part moisture, then dry up stand-by with exhaust fan；
2) surface active
Treatment fluid is prepared: deionized water 9.5kg is initially charged 0.02kg polydimethylsiloxane defoamer, adds 0.5kg OP
10, stir stand-by, sponge is totally immersed in solution, extrudes redundant solution with rubber roll；
3) dehydration
Sponge is used exhaust fan forced dehydration, wind speed 3m/s, air quantity 1800m3/ h, moisture control is < in the range of 15%；
4) the long-pending acrylic acid aqueous non-setting adhesive cement of leaching
Acrylic acid non-setting adhesive cement is allocated: takes the acrylic acid aqueous non-setting adhesive cement of 1kg and adds 1kg deionized water and stir, is put by sponge
Entering to adjust in the glue got togather, then extrude unnecessary glue with rubber roll, and by multiple tracks, roller is squeezed equal glue, exhaust fan is dehydrated, environment
Temperature 15～20 DEG C, the moisture content < 15% of sponge after leaching is long-pending；
5) coating metal dust
Select-325 irregularly shaped pre-nichrome powders of mesh aerosolization, nichrome content 99.5%, pine dress than 2.5～
3.0/cm3,
Use powder coating machine, sponge is uniformly hung and is coated with one layer of prealloy 310s powder: composition: chromium 25% nickel 20% balance iron, and will
Floating powder vibrating method is removed, and < 5%, after upper powder, body density is 0.25～0.5g/cm less than total upper powder amount for floating powder content3Between；
6) low-temperature sintering and cracking
Sponge after coating is placed on 550*550*6mm graphite supporting plate, sends in 180 DEG C of baking ovens, be incubated 25min, 220 DEG C of insulations
30min, 280 DEG C of insulation 30min, 360 DEG C of insulation 20min, and it is passed through 99.8% nitrogen, flow 3 m3/h；
7) oxidoreduction sintering processes
Oxidation panel temperature: heat-processing equipment is: net belt type oxidation and sinter stove, the first warm area 360 DEG C, the second warm area 420 DEG C, the 3rd
Warm area 520 DEG C, 650 DEG C, four-temperature region, the 5th warm area: 560 DEG C, network speed: 12m/h,
Reduction sintering stage: hot oil (gas) filling device is: high temperature pushes away boat sintering furnace, the first warm area 1080 DEG C, the second warm area 1200 DEG C, the 3rd
Warm area 1260 DEG C, 1180 DEG C, four-temperature region, the 5th warm area 1100 DEG C, nitrogen gas purity 99.995%, decomposed ammonia 5 m3/ h ,
Outlet nitrogen seals 12 m3/ h, dew point :-63 DEG C, oxygen content: 5ppm, boat board size: 600*600mm*25mm, translational speed: 12
Minute/boat.
Material therefor of the present invention is readily obtained, and is commercially available prod.Sponge is polyurethane, Polymer Technology Group
Being commonly called as of the macromolecular materials such as ethyl ester, polyester base Ethyl formate, after blasting technology, percent opening reaches 98%, and even structure is consistent, then
Process through pingqie machine and sets up cutting machine and reach required size.Described surfactant is 0P-10 or sodium lauryl sulphate；Described
Defoamer be the polydimethylsiloxane defoamer in organic silicon defoamer or Polyether Modified Polysiloxanes Defoaming Agent.
Claims (4)
1. a porous foam metal material preparation method, is characterized in that, it comprises the following steps:
1) de-ester roughening
The sodium hydroxide solution of preparation molar concentration 4.0 mol/L, stirs, is heated to 30 DEG C, be totally immersed into by sponge molten
3min in liquid, takes out, and 30 DEG C of warm water countercurrent backwashings are except alkali liquor, with rubber roll extruding part moisture, then dries up stand-by with exhaust fan；
2) surface active
Preparation surface active liquid: by quality % proportioning, surfactant: 5%, defoamer: 0.2%, balance deionized water, by sponge
Immerse in surface active liquid, extrude redundant solution with rubber roll, eliminate sponge string diameter surface tension；
3) dehydration
Sponge is used exhaust fan forced dehydration, wind speed 3m/s, air quantity 1800m3/ h, moisture control is in the range of 10～15%；
4) aqueous non-setting adhesive cement is soaked
Water-based glue performance indications
Composition: acrylic acid
Gu composition: 53 ± 2%
Viscosity: 2200～2500ps/25 DEG C
PH value: 79
First acrylic acid original gelatin and deionized water are pressed 1:1 dilution proportion mix homogeneously, uses cement dipping machine by long-pending for sponge leaching dilute
Release water soluble acrylic acid glue, adjust roller gap according to sponge thickness, it is ensured that glue liquid surface height, gluing uniformity, without sealing of hole,
And by multiple tracks, roller is squeezed equal glue, air draft is dehydrated, ambient temperature 15～20 DEG C, the moisture content < 15% of sponge after leaching is long-pending；
5) coating metal dust
Use metal dust coating machine, the required metal dust of coating, metal dust be spherical, class is spherical or irregularly shaped ,-
325 mesh～1250 mesh, the upper powder amount of metal dust is 0.15g/cm3～0.8g/cm3, it is ensured that the upper powder of coating metal dust is uniform
Unanimously, without holiday, and removing floating powder, floating powder accounts for powder amount < 5%；
6) cutting
Require to reserve amount of contraction and processing capacity cutting required size according to product size；
7) low-temperature sintering and cracking
Being placed on graphite supporting plate by sponge after coating puts in baking oven, with 99.8% nitrogen protection, nitrogen flow 3m3/ h, 180 DEG C of guarantors
Temperature 25 min, 220 DEG C of insulation 30 min, 280 DEG C of insulation 30 min, 360 DEG C of insulation 20 min, by sponge carbonization, and make metal
Powder forms low temperature and hardens, and forms stable foam structure；
8) oxidoreduction sintering processes
With net belt type oxidoreduction stove, oxidation panel temperature: the first warm area 360 DEG C, the second warm area 410 DEG C, 480 DEG C, three-temperature-zone,
580 DEG C, four-temperature region, the 5th temperature 650 DEG C, network speed: 14m/h,
Oxidation panel entrance door opened height 200mm, port opening height 80mm, flue damper 220mm full open, it is ensured that sponge
Carbonized bodies all gasifies,
It is to be determined by metal dust absolute melting point temperature Tm that sintering temperature sets, and sintering temperature is each constituent element in metal powder opisthosoma
0.8-0.95Tm below fusing point, decomposed ammonia: 14m3/ h, outlet nitrogen amount: 10 m3/ h, prepares porous foam metal material
Material finished product.
A kind of porous foam metal material preparation method the most according to claim 1, is characterized in that, described metal dust
For fine copper powder, signal bronze powder, iron-copper alloy powder, monel powder or nichrome powder.
A kind of porous foam metal material preparation method the most according to claim 1, is characterized in that, described surface activity
Agent is 0P-10 or sodium lauryl sulphate.
A kind of porous foam metal material preparation method the most according to claim 1, is characterized in that, described defoamer is
Polydimethylsiloxane defoamer in organic silicon defoamer or Polyether Modified Polysiloxanes Defoaming Agent.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108364805A (en) * | 2018-02-08 | 2018-08-03 | 长安大学 | A kind of preparation method of open celled foam nickel |
| CN113799470A (en) * | 2021-04-02 | 2021-12-17 | 吉林三环新材料有限公司 | Preparation method of full-through-hole porous foamed aluminum |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277486A (en) * | 2011-08-24 | 2011-12-14 | 吉林卓尔科技股份有限公司 | Method for preparing porous foam nickel-iron-chromium alloy material |
| CN103255446A (en) * | 2013-05-28 | 2013-08-21 | 吉林市卓尔新型金属材料有限公司 | Preparation method of chromium-alloy foamed metal |
-
2016
- 2016-04-06 CN CN201610206403.0A patent/CN105803240B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277486A (en) * | 2011-08-24 | 2011-12-14 | 吉林卓尔科技股份有限公司 | Method for preparing porous foam nickel-iron-chromium alloy material |
| CN103255446A (en) * | 2013-05-28 | 2013-08-21 | 吉林市卓尔新型金属材料有限公司 | Preparation method of chromium-alloy foamed metal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108364805A (en) * | 2018-02-08 | 2018-08-03 | 长安大学 | A kind of preparation method of open celled foam nickel |
| CN113799470A (en) * | 2021-04-02 | 2021-12-17 | 吉林三环新材料有限公司 | Preparation method of full-through-hole porous foamed aluminum |
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