CN1804070A - Method and apparatus for removing soluble salt particle from porous Al alloy complex - Google Patents

Method and apparatus for removing soluble salt particle from porous Al alloy complex Download PDF

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Publication number
CN1804070A
CN1804070A CN 200510134901 CN200510134901A CN1804070A CN 1804070 A CN1804070 A CN 1804070A CN 200510134901 CN200510134901 CN 200510134901 CN 200510134901 A CN200510134901 A CN 200510134901A CN 1804070 A CN1804070 A CN 1804070A
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China
Prior art keywords
alloy complex
soluble salt
aluminium alloy
porous
turning axle
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CN 200510134901
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Chinese (zh)
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CN100334238C (en
Inventor
何德坪
刘兵
何思渊
尚金堂
戴戈
黄可
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Southeast University
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Southeast University
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Abstract

The method to remove soluble salt particle in porous aluminum alloy complex comprises: preparing the complex with seepage pressure or other methods to dip in water and revolute around the rotation mechanism in water with alternative direction till its mass stable. Wherein, the said device comprises: a rotation shaft (1), a frame (4) fixed on and rotated around the shaft, a water bath (5), and a lock (3) fixed the complex (2) on frame away from the shaft. This invention has high efficiency with low cost.

Description

Remove soluble salt particulate method and device in the through-hole porous aluminium alloy complex body
Technical field
The present invention relates to a kind of working method and device of through-hole porous aluminium alloy, relate in particular to soluble salt particulate method in a kind of removal through-hole porous aluminium alloy complex body.
Background technology
In making the through-hole porous aluminium alloy process, existing scheme of removing soluble salt in through-hole porous aluminium alloy and the soluble salt complex body is hot-water soak and ultrasonic cleaning.In the hot-water soak process is to come the dissolved salt particle by ion diffusion.Because aluminium alloy is coated on the salt particle, the connecting passage between the salt particle is minimum, makes channel for ion diffusion very little, desalination effect extreme difference.Ultrasonic cleaning is based on the effect of ultrasonic cavitation, suddenly break after ultrasonic wave is forming bubble moment of (closure) gives birth between energy and surpasses 1000 barometric points, the instantaneous pressure intense impact article surface of this successive generation, dirt in body surface and the slit is peeled off rapidly, thereby purpose to the body surface Cress, but because the 3 D complex passage of porous aluminum, cause that the saturated solution of core is difficult to discharge when cleaning the salt particle of core, thereby influence cleaning performance, particularly for large-sized through-hole porous aluminium alloy complex body.These shortcomings make the circulating capacity of through-hole porous aluminium alloy reduce, and, because the existence of soluble salt increases the weight of the corrosion of through-hole porous aluminium alloy easily, and has a strong impact on the follow-up course of processing of through-hole porous aluminium alloy.
Summary of the invention
The invention provides a kind of simple, high-level efficiency, remove soluble salt particulate method and device in the through-hole porous aluminium alloy complex body cheaply.
The present invention adopts following technical scheme:
Soluble salt particulate method in a kind of removal through-hole porous aluminium alloy complex body comprises the steps:
The first step, the preparation of through-hole porous aluminium alloy complex body: earlier the soluble salt particle is placed the mould consolidation and be heated to 600 ℃ of insulations 40~50 minutes, again the fused aluminium alloy melt is poured in the mould, and infiltrate under pressure between the soluble salt particle, wait to solidify the cooling back and obtain Al alloy complex
Second step, the soluble salt particulate is removed in the through-hole porous aluminium alloy complex body: the through-hole porous aluminium alloy complex body is immersed in the water, make porous Al alloy complex turning axle around rotating mechanism in water make revolution motion, rotation mode is positive and negative alternately rotation, maximum speed of revolution is 260-1000 rev/min, till the quality of the porous Al alloy complex after the dehydration no longer changes.
A kind ofly be used for implementing removal through-hole porous aluminium alloy complex body soluble salt particulate device of the present invention, form by turning axle, framework, tank, frame fixation is on turning axle, around rotating shaft center's rotation, the through-hole porous aluminium alloy complex body is fixed on the part of framework away from turning axle by snap close, porous Al alloy complex can revolve round the sun round turning axle, and in use, framework is immersed in the water in the tank.
The present invention obtains following technique effect:
(1) from the desalting process of through-hole porous aluminium alloy and soluble salt particulate complex body, remove in the soluble salt process in the positive and negative alternate rotation, by the complexity between current and the complex body, violent relative movement, make that the soluble salt particle in the porous Al alloy with complex three-dimensional passage is removed, its desalination mechanism with current to salt particle acutely wash away, be dissolved as the master, remove soluble salt efficient height.
(2) the present invention adopt positive and negative reciprocal rotation make the relative movement of speed greatly between through-hole porous aluminium alloy and soluble salt complex body and the current, make large size complex body core soluble salt particle also can be subjected to the souring of current, thereby can remove the salt particle in the complex body fully.If only be unidirectional rotation, so, on the one hand, it is close with the through-hole porous aluminium alloy complex body that the speed of rotation of water can become gradually, makes the souring of water weaken; On the other hand, unidirectional rotation meeting forms very big whirlpool in the receptacle of dress water, and the container volume that need be filled with water is very big, has increased cost, also can cause the through-hole porous aluminium alloy complex body to surface simultaneously, has reduced flush efficiency.
(3) the present invention is by making the complex body of through-hole porous aluminium alloy and soluble salt alternately revolve round the sun around the positive and negative of turning axle in water, form the smoothness of complicated current fast, thereby make the inside of washing away porous Al alloy complex that current can be violent, thereby can remove the soluble salt particle of the large-sized porous Al alloy complex of tool inside more completely, thereby increased the efficient of removing soluble salt, significantly reduced the removal time, provided cost savings.
(4) the positive and negative alternate run process of turning axle discontinuous 10~40s can reduce the burden of the motor of driven rotary axle.
(5) if the maximum operational speed of turning axle is too small, so the intensity of souring a little less than, do not have wash away effect; Yet, if the maximum speed of revolution of turning axle is excessive, can evoke very big whirlpool, make porous Al alloy complex surface, reduce and remove soluble salt particulate efficient, also can increase the weight of the burden of motor on the other hand, increase cost; When being in 360 rev/mins~500 rev/mins rotating speed, can reach desalination effect preferably.
(6) from corrosion resistant angle, the existence of soluble salt particulate existence, particularly NaCl etc. makes the corrosion speed of porous Al alloy increase greatly easily, thereby to some degree, the present invention can also improve the corrosion resistance nature of porous Al alloy greatly.
(7) physical construction of the present invention's employing is simple, and cost is obviously much lower with respect to ultrasonic method, and effect is better.
Description of drawings
Fig. 1 is the device synoptic diagram of the embodiment of the invention 2.
Fig. 2 is that as a comparison porous Al alloy complex soaks core section figure after 23 hours in the embodiment of the invention 3.
Fig. 3 be in the embodiment of the invention 3 as a comparison porous Al alloy complex through the core section figure of ultrasonic desalination after 6 hours.
Fig. 4 is the core section figure of cleaning after 75 minutes of the embodiment of the invention 3.
Fig. 5 is porous Al alloy sample appearance figure.
Embodiment
Embodiment 1
Soluble salt particulate method in a kind of removal through-hole porous aluminium alloy complex body, comprise the steps: the first step, the preparation of through-hole porous aluminium alloy complex body: earlier the soluble salt particle is placed the mould consolidation and be heated to 600 ℃ of insulations 40~50 minutes, again the fused aluminium alloy melt is poured in the mould, and infiltrate under pressure between the soluble salt particle, in the present embodiment, but pressure adopts negative pressure, negative pressure pressure can be 10-40kPa, wait to solidify the cooling back and obtain Al alloy complex, in the present embodiment, the soluble salt particle can be NaCl, Na 3PO 4, a kind of in water-soluble salt such as KCl.
Second step, the soluble salt particulate is removed in the through-hole porous aluminium alloy complex body: the complex body of through-hole porous aluminium alloy and soluble salt is immersed in the water, make porous Al alloy complex turning axle around rotating mechanism in water make revolution motion, rotation mode is for just, reciprocal cross is for rotation, maximum speed of revolution is 260-1000 rev/min, rotating speed can be 360 rev/mins, 450 rev/mins, 500 rev/mins, 670 rev/mins, till the quality of the porous Al alloy complex after the dehydration no longer changes, in the present embodiment, can clean for some time in rotation, during as 10 minutes, porous Al alloy complex is taken off, put into centrifugal whirler rotary dehydration, weighing, put it into again to be rotated in the water and clean for some time (as 10 minutes), the weighing of dewatering again if twice quality is basic identical, can be considered and removes soluble salt particulate end of processing.
In the present embodiment, porous Al alloy complex is made the positive and negative alternately maximum speed of revolution of the revolution motion of rotation around the turning axle of rotating mechanism and is preferably 360~500 rev/mins in water.
In the present embodiment, 10~40s intermittently when the positive and negative rotation of turning axle replaces.
Embodiment 2
Soluble salt particulate device in a kind of removal through-hole porous aluminium alloy complex body, form by turning axle 1, framework 4, tank 5, framework 4 is fixed on the turning axle, turning axle is driven by electric motor, around rotating shaft center's rotation, through-hole porous aluminium alloy complex body 2 is fixed on the part of framework 4 away from turning axle by snap close 3, and porous Al alloy complex 2 can revolve round the sun round turning axle, in use, framework 4 is immersed in the water of 5 li of tanks.
Embodiment 3
Soluble salt particulate method in a kind of removal through-hole porous aluminium alloy complex body, comprise the steps: the first step, the preparation of through-hole porous aluminium alloy complex body: earlier the soluble salt particle is placed the mould consolidation and be heated to 600 ℃ of insulations 40~50 minutes, again the fused aluminium alloy melt is poured in the mould, and infiltrate under pressure between the soluble salt particle, in the present embodiment, but pressure adopts negative pressure, negative pressure pressure can be 10-40kPa, wait to solidify the cooling back and obtain Al alloy complex, in the present embodiment, the soluble salt particle can be NaCl, Na 3PO 4, a kind of in water-soluble salt such as KCl.
Second step, the soluble salt particulate is removed in the through-hole porous aluminium alloy complex body: the complex body of through-hole porous aluminium alloy and soluble salt is immersed in the water, make porous Al alloy complex turning axle around rotating mechanism in water make revolution motion, rotation mode is for just, reciprocal cross is for rotation, maximum speed of revolution is 260-1000 rev/min, rotating speed can be 360 rev/mins, 450 rev/mins, 500 rev/mins, 670 rev/mins, till the quality of the porous Al alloy complex after the dehydration no longer changes, in the present embodiment, can clean for some time in rotation, during as 10 minutes, porous Al alloy complex is taken off, put into centrifugal whirler rotary dehydration, weighing, put it into again to be rotated in the water and clean for some time (as 10 minutes), the weighing of dewatering again if twice quality is basic identical, can be considered and removes soluble salt particulate end of processing.
In the present embodiment, porous Al alloy complex is made the positive and negative alternately maximum speed of revolution of the revolution motion of rotation around the turning axle of rotating mechanism and is preferably 360~500 rev/mins in water.
In the present embodiment, in the positive and negative alternate run process of turning axle, 10~40s intermittently.
The salt particle diameter is the through-hole porous aluminium alloy of 2-2.5mm and the complex body of salt particle, complex body diameter 57mm, length 15cm.
The data that water directly soaks desalination are as follows, the water periodic replacement:
Soak time (hour) 0 1 2 3 4 6 9 23
Weight (gram) 828 802 790 780 776 768 756 710
(2) data of ultrasonic desalination (sample is positioned in the water) are as follows:
Ultrasonic time (hour) 0 1 2 3 4 5 6
Weight (gram) 830 738 690 656 630 608 596
(effect that 3 the present invention clean desalination is as follows:
Hand over, for the rotation scavenging period (minute) 0 15 30 45 60 75
Weight (gram) 828 662 552 504 488 488
Accompanying drawing 2 is that as a comparison porous Al alloy complex soaks core section figure after 23 hours in the embodiment of the invention 3.From the sectional view as can be seen: though only be that the salt particle of ragged edge is removed through soaking for a long time, core still has a large amount of salt particles.
Accompanying drawing 3 be in the embodiment of the invention 3 as a comparison porous Al alloy complex through the core section figure of ultrasonic desalination after 6 hours.From the figure as can be seen: salt particle outside after ultrasonic cleaning in 6 hours all is removed, but core has still kept salt particle.The removal of seeing the core salt particle in conjunction with the data of ultrasonic desalination is more and more difficult.
Accompanying drawing 4 is the core section figure of cleaning after 75 minutes of the embodiment of the invention 3.From the figure as can be seen: the salt particle of core is removed fully after rotation of the present invention in 75 minutes is cleaned.Reached the effect of desalination.
Mentioned core section is meant cross section, the salt particle at this position such as the easy removal near the sample center among the present invention.
Because under the certain temperature, the solubleness of soluble salt in water is certain, if through-hole porous aluminium alloy complex body sample size is bigger, soluble salt content is more, and the water of As used herein is less, then needs to refresh the water periodically, thereby can dissolve more salt, increase the desalination effect.

Claims (4)

1. remove soluble salt particulate method in the through-hole porous aluminium alloy complex body for one kind, it is characterized in that comprising the steps:
The first step, the preparation of through-hole porous aluminium alloy complex body: earlier the soluble salt particle is placed the mould consolidation and be heated to 600 ℃ of insulations 40~50 minutes, again the fused aluminium alloy melt is poured in the mould, and infiltrate under pressure between the soluble salt particle, wait to solidify the cooling back and obtain Al alloy complex
Second step, the soluble salt particulate is removed in the through-hole porous aluminium alloy complex body: the through-hole porous aluminium alloy complex body is immersed in the water, make porous Al alloy complex turning axle around rotating mechanism in water make revolution motion, rotation mode is positive and negative alternately rotation, maximum speed of revolution is 260-1000 rev/min, till the quality of the porous Al alloy complex after the dehydration no longer changes.
2. soluble salt particulate device in the removal through-hole porous aluminium alloy complex body according to claim 1, it is characterized in that forming by turning axle (1), framework (4), tank (5), framework (4) is fixed on the turning axle, around rotating shaft center's rotation, through-hole porous aluminium alloy complex body (2) is fixed on the part of framework (4) away from turning axle by snap close (3), porous Al alloy complex (2) can revolve round the sun round turning axle, in use, framework (4) is immersed in the water of tank (5) lining.
3. soluble salt particulate method in the removal through-hole porous aluminium alloy complex body according to claim 1 is characterized in that porous Al alloy complex is made the positive and negative alternately maximum speed of revolution of the revolution motion of rotation around the turning axle of rotating mechanism in water be 360~500 rev/mins.
4. soluble salt particulate method in the removal through-hole porous aluminium alloy complex body according to claim 1, when it is characterized in that the positive and negative rotation of turning axle replaces, middle intermittently 10~40s.
CNB2005101349010A 2005-12-30 2005-12-30 Method and apparatus for removing soluble salt particle from porous Al alloy complex Expired - Fee Related CN100334238C (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102146532A (en) * 2011-03-15 2011-08-10 中国科学院合肥物质科学研究院 Preparation method of composite spherical porous aluminum
CN109174814A (en) * 2018-11-05 2019-01-11 湖南迪清科技有限公司 A kind of automatic ultrasonic salt bath cleaning device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1224766A (en) * 1998-01-24 1999-08-04 江苏永钢集团 Manufacture of honeycomb metal body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102146532A (en) * 2011-03-15 2011-08-10 中国科学院合肥物质科学研究院 Preparation method of composite spherical porous aluminum
CN109174814A (en) * 2018-11-05 2019-01-11 湖南迪清科技有限公司 A kind of automatic ultrasonic salt bath cleaning device

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