CN106435229B - The preparation method and filter of filter - Google Patents
The preparation method and filter of filter Download PDFInfo
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- CN106435229B CN106435229B CN201510496578.5A CN201510496578A CN106435229B CN 106435229 B CN106435229 B CN 106435229B CN 201510496578 A CN201510496578 A CN 201510496578A CN 106435229 B CN106435229 B CN 106435229B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000002002 slurry Substances 0.000 claims abstract description 45
- 239000011148 porous material Substances 0.000 claims abstract description 35
- 238000005245 sintering Methods 0.000 claims abstract description 31
- 238000007599 discharging Methods 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000002270 dispersing agent Substances 0.000 claims description 7
- 239000002689 soil Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical class [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 claims description 4
- 239000011496 polyurethane foam Substances 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 2
- 229910052681 coesite Inorganic materials 0.000 claims description 2
- 229910052906 cristobalite Inorganic materials 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052682 stishovite Inorganic materials 0.000 claims description 2
- 229910052905 tridymite Inorganic materials 0.000 claims description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims 1
- 229910052748 manganese Inorganic materials 0.000 claims 1
- 239000011572 manganese Substances 0.000 claims 1
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 40
- 239000010813 municipal solid waste Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 2
- 238000003723 Smelting Methods 0.000 description 8
- 239000004411 aluminium Substances 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 8
- 238000001914 filtration Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 241000220317 Rosa Species 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 239000013530 defoamer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 description 1
- 229910000544 Rb alloy Inorganic materials 0.000 description 1
- 229910003978 SiClx Inorganic materials 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229910001362 Ta alloys Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 1
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 description 1
- LADUOVJEPCTFNX-UHFFFAOYSA-N [Rb].[AlH3] Chemical compound [Rb].[AlH3] LADUOVJEPCTFNX-UHFFFAOYSA-N 0.000 description 1
- QRRWWGNBSQSBAM-UHFFFAOYSA-N alumane;chromium Chemical compound [AlH3].[Cr] QRRWWGNBSQSBAM-UHFFFAOYSA-N 0.000 description 1
- RVSGESPTHDDNTH-UHFFFAOYSA-N alumane;tantalum Chemical compound [AlH3].[Ta] RVSGESPTHDDNTH-UHFFFAOYSA-N 0.000 description 1
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 150000004760 silicates Chemical group 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical group CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Filtering Materials (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The present invention provides a kind of preparation method and filter of filter.Wherein, a kind of preparation method of filter, including：It is microcellular structure to provide pore slurry and mould, the mould；The pore slurry is extruded to the mould inside；The mould for including the pore slurry is sintered；After the sintering, the mould is dismantled, the pore slurry after sintering turns into the filter.The filter produced using the method for the present invention, aperture are reduced a lot, 10 microns of field trash can be filtered to more than 74%, 6 microns of field trash filters more than 68%, and 2 microns of field trash filters more than 40%.Therefore, being mingled with molten aluminium alloy can be greatly reduced.So as to improve the purity of molten aluminium alloy.Using the filter of the present invention, simple in construction, small volume, and filter efficiency are high, improve the purity of molten aluminium alloy.
Description
Technical field
The present invention relates to the preparation method and filter of metallurgical technology, more particularly to filter.
Background technology
The aluminium alloy of high-purity is widely applied in electronic industry, such as aluminium-chromium and aluminum-titanium alloy, is as magnetic
Reflecting layer in optical medium medium；Al-zn-mg-cu alloy is as the conductor material in circuit, also may be used with aluminium-silicon, al-si-cu alloy
Using as sputtered target material, and aluminium-rubidium alloy and aluminium-tantalum alloy are then as the metallic reflector in flat-panel screens.On
Stating aluminium alloy has very high requirement to purity, consistency.
Therefore, melting filtering is needed to turn into the necessary condition of modern high performance aluminium alloy to aluminium alloy.And prior art
In aluminium alloy smelting filter performance it is bad.
The content of the invention
The present invention solves the problems, such as it is bad using the performance of aluminium alloy smelting filter of the prior art.
To solve the above problems, the present invention provides a kind of preparation method of filter, including：
Optionally, there is provided pore slurry and mould, the mould are microcellular structure；
Optionally, the pore slurry is extruded to the mould inside；
Optionally, the mould for including the pore slurry is sintered；
Optionally, after the sintering, the mould is dismantled, the pore slurry after sintering turns into the filter.
Optionally, the step of also including toasting the mould for including the pore slurry before the sintering.
Optionally, the composition of the pore slurry includes：Aluminum oxide, silica, calcium carbonate, No. 1 Suzhou soil, biphosphate
Aluminium, defoamer, dispersant, water.
Optionally, the composition of the pore slurry includes：80~103.5kg aluminum oxide, 0.5~3.28kg silica powders,
2.13~5.45kg calcium carbonate, 3~4kg1 Suzhou soils, 2~4.5kg aluminium dihydrogen phosphates, 1.0~1.5kg defoamers and 0.6~
1kg dispersants.
Optionally, the composition of the pore slurry also includes：Weight/mass percentage composition be 3~4% iron, cobalt, nickel, chromium, manganese,
Titanium, vanadium.
Optionally, the sintering includes the first sintering and the second sintering, and the first sintering temperature of first sintering is 400
~550 DEG C, the first sintered heat insulating time of first sintering is 2~3h, and the second sintering temperature of second sintering is 920
~1050 DEG C, the second sintered heat insulating time of second sintering is 2~3h.
Optionally, the size of the filter is (150~200mm) × (150~200mm) × (30~50mm), described
The aperture of filter is 0.5~0.64mm2。
Optionally, the mould is made up of polyurethane foam plastics.
The present invention also provides a kind of filter, including：
Support base；
First chamber on support base, the first chamber have charging aperture and the first discharging opening；
Positioned at the filter as described above of the first discharging opening.
Optionally, the position of the charging aperture is higher than first discharging opening.
Optionally, the filter also has second chamber, and the first chamber is integrally formed with the second chamber
Or connection, first discharging opening are provided with guiding gutter, one end of guiding gutter is connected with the filter, the other end of guiding gutter
Connect the second chamber.
Optionally, the bottom of the second chamber is provided with relief port.
Optionally, the second chamber has the second discharging opening, and second discharging opening is relative with the gating location,
And it is less than the charging aperture.
Optionally, the position of first discharging opening or second discharging opening is less than the 10~30mm of charging aperture.
Optionally, the top of the first chamber and/or the top of the second chamber have top cover.
Optionally, the top of the top cover is provided with heating element heater and the inflation inlet around the heating element heater, the top
The bottom of lid is provided with intercept net.
Compared with prior art, technical scheme has advantages below：
The filter produced using the method for the present invention, aperture are reduced a lot, can filter 10 microns of field trash
More than 74%, 6 microns of field trash filters more than 68%, and 2 microns of field trash filters more than 40%.Therefore, can subtract significantly
Being mingled with few molten aluminium alloy.So as to improve the purity of molten aluminium alloy.
Using the filter of the present invention, simple in construction, small volume, and filter efficiency are high, improve the pure of molten aluminium alloy
Degree.
Brief description of the drawings
Fig. 1 is the structural representation of the filter in the second embodiment of the present invention.
Embodiment
Inventor has found, the reason for performance of the aluminium alloy smelting filter of prior art is bad is：Melted by the device
The purity for the aluminium alloy that refining obtains is not high, and reason is as follows：
(1) aluminium easily aoxidizes, and can form the oxide-film of densification in bath surface, can protect melt.But use existing
Oxide, can be mixed into melt or even cast onto in ingot casting by the filter that some aluminium alloy smelting filters use, and form folder
It is miscellaneous.It is formation of crack to be mingled with, and perishable region, thus be mingled with processing on aluminium alloy and performance influence it is very big.Adopt
The aluminium alloy obtained with the aluminium alloy smelting filter of prior art, its internal inclusion content belong to more than 0.1%
With very high inclusion content.The size of field trash is more than 10 microns, and belonging to has very big inclusion size.Rather than
Normal high inclusion content and very big inclusion size can have a strong impact on the purity of aluminium alloy.
(2) using the aluminium alloy smelting filter smelting aluminium alloy of prior art during be also readily incorporated it is new miscellaneous
Will pollutant.For example, easily inspiration gas, especially hydrogen.The purity of aluminium alloy can be equally influenceed, and can be cast in aluminium alloy
The defects of stomata, slag inclusion are produced in part.
In addition, aluminium alloy smelting filter of the prior art is made up of multiple purification bodies of heater, existing aluminium is caused to close
Golden melting and purifying apparatus structure is complicated, volume is big.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
Embodiment one
The present embodiment provides a kind of preparation method of filter, including following five steps：
Step S1：It is microcellular structure to provide pore slurry and mould, the mould；
Step S2：The pore slurry is extruded to the mould inside；
Step S3：The mould for including the pore slurry is toasted；
Step S4：The mould containing pore slurry after baking is sintered；
Step S5：After the sintering, the mould is dismantled, the pore slurry after sintering turns into the filter.
First, step S1 is performed, there is provided pore slurry and mould, the mould are microcellular structure.
In the present embodiment, pore slurry includes：Aluminum oxide, silica, calcium carbonate, No. 1 Suzhou soil, adhesive, defoamer,
Dispersant and water.
Wherein, the composition of No. 1 Suzhou soil is：SiO2：44.96%~56.00%；Fe2O3：0.1%~0.3%；Al2O3：
34.26%~38.06%；SO3：0.66%~0.85%；K2O：0.21%~0.34%；Na2O：0.04%~0.06%；
CaO：0.04%~0.05%；MgO：0.08%~0.11%；TiO2：0.10%~1.00%.
The composition of defoamer is tributyl phosphate.In other embodiment, or other pin infusions.
The composition of dispersant is silicates (waterglass).In other embodiment, or other dispersants.
The composition of adhesive is aluminium dihydrogen phosphate.In other embodiment, or other adhesives.
Water in the present embodiment is distilled water, in other embodiment, or other kinds of water.
In the present embodiment, the ratio of each composition is as follows in pore slurry：80~103.5kg aluminum oxide, 0.5~3.28kg oxygen
SiClx powder, 2.13~5.45kg calcium carbonate, 3~4kg1 Suzhou soils, 2~4.5kg aluminium dihydrogen phosphates, 1.0~1.5kg defoamers
With 0.6~1kg dispersants.The composition of the pore slurry also includes：Weight/mass percentage composition be 3~4% iron, cobalt, nickel, chromium,
The transition elements such as manganese, titanium, vanadium.In other embodiment, the pore slurry can not also include above-mentioned transition elements.
In the present embodiment, using polyurethane foam plastic as shaping carrier, that is, mould.The mould mesh uniformly,
It is elastic preferable.After slurry is coated with, still resilient.The width of mesh of polyurethane foam plastic in the present embodiment is
(150~200mm) × (150~200mm) × (30~50mm), 0.5~0.64mm of aperture2.Mesh and aperture are too big, follow-up shape
Into filter filter effect can it is poor, mesh and aperture are too small, and the filter being subsequently formed easily is blocked, and can not form aluminium
Liquid stream is led to, and influences to cast.
It should be noted that in the present embodiment, why pore slurry is mentioned component, and reason is as follows：It is subsequently formed
Filter is with Al2O3Based on Multiple components watery suspensoid.The slurry can be bonded on foamed plastics silk screen securely.Fill
During slurry, slurry can neither it is too thick can not be too dilute.Too thick, slurry is not easy to be poured on foamed plastics silk screen；It is too dilute then in plastic wire
Online easily generation sedimentation forms uneven hanging.So it is the key point for preparing slurry to control appropriate moisture.In addition, material
It is also moderate to starch the caking property having, it is unnecessary extruding when finding that addition binding agent is excessive, slurry caking property is excessive in experiment
After slurry (purpose is to prevent embryo material from producing blind hole), the more difficult reinstatement of foamed plastics silk screen；Add binding agent very little, slurry
When caking property is too small, slurry cannot more, be more firmly bonded on foamed plastics silk screen, and after de- modeling, test block is just
There is no intensity, or even fall apart.Even if there is some strength, because the slurry that idiosome is hung up is too thin, now web frame is very delicate, whole
Body intensity is with regard to poor.
Then, step S12 is performed, the pore slurry is extruded to the mould inside, and fill the mould.
After filling the mould molding, first natural drying at room temperature.
Then, step S13 is performed to toast the mould for including the pore slurry.
In the present embodiment, after natural drying at room temperature, then toasted using the blast furnace of low-temperature heat.Baking temperature is small
In equal to 100 DEG C.
In other embodiment, protection scope of the present invention is fallen within without baking.
Then, step S14 is performed, the mould containing pore slurry after baking is sintered.
In the present embodiment, the condition of the sintering is as follows：2h is incubated at 400~550 DEG C first, afterwards 920~1050
DEG C insulation 2h.
Pore raw material lattice watter at 400~450 DEG C starts slowly to discharge, and lattice watter is quickly discharged at 450~550 DEG C.
Transformation of crystal and corresponding violent volume contraction can occur at 925~1050 DEG C.
Finally, step S15 is performed：After the sintering, the mould is dismantled, the pore slurry after sintering turns into described
Filter.
Size (150~200mm) × (150~200mm) × (30~50mm) of the filter, aperture 0.5~
0.64mm2, filter area can be used：22500~40000mm2, effective filtration volume is 675000~2000000mm3。
| Foreign particle size-μm | Filter efficiency-% |
| 2 | 40 |
| 6 | 68 |
| 10 | 74 |
With reference to figure 1 and upper table, the filter produced using the method for the present invention, 10 microns of field trash can be filtered
More than 74%, 6 microns of field trash filters more than 68%, and 2 microns of field trash filters more than 40%.Therefore, can subtract significantly
Being mingled with few molten aluminium alloy.So as to improve the purity of molten aluminium alloy.
Embodiment two
With reference to figure 1, the present invention also provides a kind of filter, including：
Support base 1；
First chamber 2 on support base 1 and the second chamber 3 being connected with first chamber 2.
First chamber 2 includes charging aperture 21 and the first discharging opening positioned at the lower section of charging aperture 21, is set in the first discharging opening
The filtration members 22 of the method production of useful embodiment one.In the present embodiment, it is provided between the first discharging opening and charging aperture 21
Rose Box 23.First discharging opening is also associated with guiding gutter 24, and the other end of guiding gutter 24 is connected in second chamber 3.Second chamber
The bottom of room 3 also has a relief port 31.The second discharging opening 32 is additionally provided with second chamber, the second discharging opening 32 goes out with first
Material mouth 31 is relative.
In the present embodiment, high purity aluminum alloy liquation flows into filtration members 22 from charging aperture 21, afterwards, by using embodiment one
Method described in filter, from filter outflow high purity aluminum alloy liquation flow out to guiding gutter 24 from the first discharging opening, it
Second chamber 3 is flowed through by by guiding gutter 24, is then overflowed from the second discharging opening 32 of second chamber.
In the present embodiment, the difference in height between the first discharging opening and charging aperture 21 is more than or equal to 500mm, can increase aluminium
The height of alloy melt, alleviate due to the nonwetting of aluminium alloy melt and filter and cause filter space hour to hinder aluminium to close
The resistance that golden melt passes through filter.
In the present embodiment, guiding gutter has 10 degree~15 degree of inclination compared with the base of first chamber 2.If tilt
Angle is too big, can impact the aluminium alloy melt of second chamber, and the aluminium alloy melt in second chamber will roll boiling, so as to meeting
Bring more oxidation impurities into, and then mix in the follow-up aluminium alloy body of casting and be more mingled with.The angle of inclination of guiding gutter is such as
Fruit is too small, and filter efficiency is too low.
In the present embodiment, in order to increase the feed speed of molten aluminium alloy, it is necessary to the second discharging opening 32 and charging aperture 21 it
Between difference in height be 10~30mm.Second discharging opening 32 is less than charging aperture 21.
In the present embodiment, molten aluminium alloy is after guiding gutter flows into second chamber, is directly overflowed from the second discharging opening 32.
Therefore, second chamber serves the effect for standing current stabilization.In addition, after melt casting process terminates, aerial drainage bandit 31 is opened, can be with
So that the residual aluminium outflow remained in inside Rose Box recycles.
In the present embodiment, it is filled between Rose Box 23 and first chamber with heat-preservation cotton, resistance to guncotton.
In the present embodiment, there is pad on the periphery of filter 22, the sealing as filter Yu Rose Box contact portion, it is ensured that
Aluminium -fre e alloy liquation by-pass flow.
With continued reference to Fig. 1, top cover 4 is provided with the top of first chamber.The top center of top cover 4 is provided with the He of heating element heater 44
Inflation inlet (the non-formula of figure) around the heating element heater, is additionally provided with handle 43 around the inflation inlet.The top cover
Bottom be provided with intercept net 41.
Wherein, heating element heater 44 act as preventing the molten aluminium alloy from being influenceed by guiding gutter temperature and producing cooling, from
And the temperature of molten aluminium alloy in first chamber is maintained, to ensure the quality of follow-up aluminium alloy.
The effect of the inflation inlet of heating element heater is to pour protective gas in first chamber 2, and the protective gas can hinder
Only molten aluminium alloy forms oxide inclusion with air contact and inhales hydrogen.The protective gas is nitrogen.
The bottom of top cover, which is provided with intercept net 41, can prevent the dust material on top cover from dropping in first chamber, so as to height
Pure aluminum alloy liquation pollutes.
In the present embodiment, lock company is carried out by lock 42 with top cover at the top of top cover.In other embodiment, other can also be passed through
Mode is attached.
The filter apparatus configuration of the present embodiment is simple, the filtration members that also there is the method using embodiment one to be formed, significantly
Reduce more than 10 microns to be mingled with, substantially increase the purity of molten aluminium alloy, while also improve filter efficiency.
In other embodiment, first chamber 2 can be integrally formed with second chamber 3.
In other embodiment, also there is at the top of second chamber 2 upper lid to fall within protection scope of the present invention.
In other embodiment, no second chamber falls within protection scope of the present invention.
In other embodiment, no top cover 4 falls within protection scope of the present invention.
There is no guiding gutter 24 to fall within protection scope of the present invention in other embodiment.
In other embodiment, no Rose Box falls within protection scope of the present invention.
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, this is not being departed from
In the spirit and scope of invention, it can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
The scope of restriction is defined.
Claims (14)
- A kind of 1. preparation method of filter, it is characterised in that including：It is microcellular structure to provide pore slurry and mould, the mould；The pore slurry is extruded to the mould inside；The mould for including the pore slurry is sintered；After the sintering, the mould is dismantled, the pore slurry after sintering turns into the filter；The composition of the pore slurry includes：80~103.5kg aluminum oxide, 0.5~3.28kg silica powders, 2.13~5.45kg Calcium carbonate, 3~4kg1 Suzhou soils, 2~4.5kg aluminium dihydrogen phosphates, 1.0~1.5kg defoamers, 0.6~1kg dispersants and Water；The composition of No. 1 Suzhou soil is：SiO2：44.96%~56.00%；Fe2O3：0.1%~0.3%；Al2O3： 34.26%~38.06%；SO3：0.66%~0.85%；K2O：0.21%~0.34%；Na2O：0.04%~0.06%； CaO：0.04%~0.05%；MgO：0.08%~0.11%；TiO2：0.10%~1.00%.
- 2. preparation method as claimed in claim 1, it is characterised in that also include before the sintering to including the pore The step of mould of slurry is toasted.
- 3. preparation method as claimed in claim 1, it is characterised in that the composition of the pore slurry also includes：Quality percentage Content is 3~4% iron or cobalt or nickel or chromium or manganese or titanium or vanadium.
- 4. preparation method as claimed in claim 1, it is characterised in that the sintering includes the first sintering and the second sintering, institute The first sintering temperature for stating the first sintering is 400~550 DEG C, and the first sintered heat insulating time of first sintering is 2~3h, institute The second sintering temperature for stating the second sintering is 920~1050 DEG C, and the second sintered heat insulating time of second sintering is 2~3h.
- 5. preparation method as claimed in claim 1, it is characterised in that the size of the filter be (150~200mm) × (150~200mm) × (30~50mm), the aperture of the filter is 0.5~0.64mm2。
- 6. preparation method as claimed in claim 1, it is characterised in that the mould is made up of polyurethane foam plastics.
- A kind of 7. filter, it is characterised in that including：Support base；First chamber on the support base, the first chamber have charging aperture and the first discharging opening；Positioned at the filter as described in claim 1~6 any one of first discharging opening.
- 8. filter as claimed in claim 7, it is characterised in that the position of the charging aperture is higher than the described first discharging Mouthful.
- 9. filter as claimed in claim 7, it is characterised in that the filter also has a second chamber, and described One chamber is integrally formed or is connected with the second chamber, and first discharging opening is provided with guiding gutter, one end of guiding gutter with The filter connection, the other end of guiding gutter connect the second chamber.
- 10. filter as claimed in claim 7, it is characterised in that the bottom of the second chamber is provided with relief port.
- 11. filter as claimed in claim 7, it is characterised in that the second chamber has the second discharging opening, and described Two discharging openings are relative with the gating location, and are less than the charging aperture.
- 12. filter as claimed in claim 11, it is characterised in that first discharging opening or second discharging opening Position is less than the 10~30mm of charging aperture.
- 13. filter as claimed in claim 11, it is characterised in that the top of the first chamber and/or described second The top of chamber has top cover.
- 14. filter as claimed in claim 13, it is characterised in that the top of the top cover is provided with heating element heater and in institute The inflation inlet around heating element heater is stated, the bottom of the top cover is provided with intercept net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510496578.5A CN106435229B (en) | 2015-08-13 | 2015-08-13 | The preparation method and filter of filter |
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| CN201510496578.5A CN106435229B (en) | 2015-08-13 | 2015-08-13 | The preparation method and filter of filter |
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| CN106435229B true CN106435229B (en) | 2018-02-16 |
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| CN101927105B (en) * | 2010-01-28 | 2012-06-27 | 湖南金联星特种材料股份有限公司 | Foamed ceramic aluminum melt filter tube, manufacturing method and filtering device |
| CN102154562A (en) * | 2011-03-16 | 2011-08-17 | 南昌航空大学 | Composite purifying box for zinc and zinc alloy melts |
| CN202925072U (en) * | 2012-11-29 | 2013-05-08 | 湖南华科机械有限公司 | Novel two-stage filter device |
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Denomination of invention: The production method and filtration device of filters Effective date of registration: 20231228 Granted publication date: 20180216 Pledgee: China Co. truction Bank Corp Yuyao branch Pledgor: NINGBO CHUANGRUN NEW MATERIALS Co.,Ltd. Registration number: Y2023980073914 |
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