CN107475550A - A kind of continuous producing apparatus accelerated internal cooling and improve foamed aluminium uniform in foaming degree - Google Patents
A kind of continuous producing apparatus accelerated internal cooling and improve foamed aluminium uniform in foaming degree Download PDFInfo
- Publication number
- CN107475550A CN107475550A CN201710842691.3A CN201710842691A CN107475550A CN 107475550 A CN107475550 A CN 107475550A CN 201710842691 A CN201710842691 A CN 201710842691A CN 107475550 A CN107475550 A CN 107475550A
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- CN
- China
- Prior art keywords
- dry ice
- liquid nitrogen
- mixing tank
- foamed aluminium
- producing apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/005—Casting metal foams
-
- 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
- C22C1/083—Foaming process in molten metal other than by powder metallurgy
- C22C1/086—Gas foaming process
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of continuous producing apparatus accelerated internal cooling and improve foamed aluminium uniform in foaming degree, including：Mixing tank；Aluminium liquid storage tank；Adhesion agent storage tank；Liquid nitrogen or dry ice storage tank, are connected with the mixing tank, for adding liquid nitrogen or dry ice into the mixing tank；Agitator, the agitator includes agitating shaft and the more than one paddle being fixed on the agitating shaft, the upper end of the agitating shaft is rotatably assorted with the discharging opening of the liquid nitrogen or dry ice storage tank and is connected, and axle envelope part is provided between the two, on the agitating shaft liquid nitrogen or dry ice passage are provided with along its axial direction, at least one paddle is hollow-core construction and connected with the liquid nitrogen or dry ice passage, and the paddle of the hollow-core construction is provided with multiple ventholes；Mould；And transport mechanism.The present invention is simple in construction, easily makes, and equipment cost is low, and safety and environmental protection, cost is low, and can realize the continuous production of foamed aluminium, improves the pore structure uniformity of foamed aluminium.
Description
Technical field
The present invention relates to material manufacture field, relates in particular to a kind of internal cooling of accelerating and improves foamed aluminium uniform in foaming
The continuous producing apparatus of degree.
Background technology
Foamed aluminium is after adding foaming agent in pure aluminum or aluminum alloy, and the material that is formed by foam process, it is simultaneously simultaneous
Have metal and bubble feature, its density is small, high-selenium corn impact capacity is strong, high temperature resistant, fire protecting performance are strong, anticorrosive, sound insulation and noise reduction,
Low thermal conductivity, electromagnetic wave shielding are high, weatherability is strong, have filter capacity, easy processing, easy to install, forming accuracy is high, can carry out surface
Application.
The preparation technology of existing foamed aluminium is that aluminium skimmings particle and foaming agent first are mixed with into foamed aluminium blank, then will bubble
Poured into after the fusing of foam aluminium blank in mould, and cooling processing is carried out to mould, cooling obtains foamed aluminium material.
The conventional foaming agent of foamed aluminium is TiH at present2, TiH2Because of premature decomposition so that foamed aluminium is difficult to uniformly, and carry out
During cooling processing, can only gradually it cool down from outside to inside, this needs a period of time, during this period of time, bubble floating, also causes to steep
The pore structure uniformity of foam aluminium is poor.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of simple in construction, can reduce production cost, improve foamed aluminium
Pore structure uniformity, realize quantity-produced accelerate internal cooling improve foamed aluminium uniform in foaming degree continuous producing apparatus.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that：One kind accelerates internal cooling and improves foam
The continuous producing apparatus of aluminium uniform in foaming degree, including：
Mixing tank, as the mixing place of raw material, lower end is provided with discharge nozzle；
Aluminium liquid storage tank, connected with the mixing tank, for adding aluminium liquid into the mixing tank；
Adhesion agent storage tank, connected with the mixing tank, for adding adhesion agent into the mixing tank；
Liquid nitrogen or dry ice storage tank, are connected with the mixing tank, for adding liquid nitrogen or dry ice into the mixing tank；
Agitator, for being stirred to the raw material in the mixing tank, the agitator include agitating shaft and
The more than one paddle being fixed on the agitating shaft, the upper end of the agitating shaft and the liquid nitrogen or dry ice storage tank go out
Material mouth is rotatably assorted connection, and is provided with axle envelope part between the two, is provided with liquid nitrogen or dry ice passage along its axial direction on the agitating shaft, extremely
A few paddle is hollow-core construction and connected with the liquid nitrogen or dry ice passage, and the paddle of the hollow-core construction
It is provided with multiple ventholes；
Mould, for contoured foam aluminium；
And transport mechanism, mould supports thereon, for carrying mould movement.
Further, in addition to agitator elevating mechanism, for the agitator to be proposed from the mixing tank.
Further, the agitator also includes motor, connects between the output shaft of the motor and the agitating shaft
It is connected to chain belt drive structure.
Further, the agitating shaft is provided with more than two layers of the paddle, wherein the undermost paddle
Connected for hollow-core construction and with the liquid nitrogen or dry ice passage.
Further, in addition to foaming agent storage tank, the foaming agent storage tank connect with the mixing tank, for being mixed to described
Foaming agent is added in batch can.
Further, in addition to ultrasonic oscillation device, for carrying out ultrasonic vibration treatment to the mould.
Further, the mould is open-topped strip cell body, and the inside of strip cell body is along its circumference
Dividing plate provided with multiple spaced arrangements.
Further, the transport mechanism is conveyer belt.
Further, the venthole is located at the lee face of the paddle.
Further, it is coated with heat-barrier material on liquid nitrogen or the dry ice conduit wall.
Beneficial effects of the present invention are embodied in：
The present invention is simple in construction, easily makes, and equipment cost is low, using liquid nitrogen or dry ice as foaming agent, safety and environmental protection, into
This is low, and when addition liquid nitrogen or dry ice, liquid nitrogen or dry ice endothermic gasification, is cooled down from the inside of aluminium liquid, this mode drops
It is warm fast and uniformly, so as to reduce the sinking of the floating of bubble and aluminium liquid, solve uneven problem caused by foaming graded,
The pore structure uniformity of foamed aluminium is improved, in addition, it is of the invention without previously prepared foamed aluminium blank, and foamed aluminium can be realized
Continuous production, the production technology of foamed aluminium is enormously simplify, reduces production cost, there is extraordinary application prospect.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the structural representation of another embodiment of the present invention.
Fig. 3 is enlarged drawing at A.
In accompanying drawing the mark of each part for：1 mixing tank, 2 aluminium liquid storage tanks, 3 adhesion agent storage tanks, 4 liquid nitrogen or dry ice storage tank, 5
Foaming agent storage tank, 61 agitating shafts, 611 liquid nitrogen or dry ice passage, 62 paddles, 621 ventholes, 63 motor, 7 moulds,
71 dividing plates, 8 transport mechanisms, 9 agitator elevating mechanisms, 10 valves, 11 discharge nozzles, 12 cylinders or hydraulic cylinder.
Embodiment
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.It should be noted that in the feelings not conflicted
Under condition, the feature in embodiment and embodiment in the application can be mutually combined.
Referring to Fig. 2 and Fig. 3.
The present invention accelerates the continuous producing apparatus that internal cooling improves foamed aluminium uniform in foaming degree, including：
Mixing tank 1, as the mixing place of raw material, lower end is provided with discharge nozzle 11；
Aluminium liquid storage tank 2, connected with the mixing tank 1, for adding aluminium liquid into the mixing tank 1；
Adhesion agent storage tank 3, connected with the mixing tank 1, for adding adhesion agent into the mixing tank 1；
Liquid nitrogen or dry ice storage tank 4, connected with the mixing tank 1, for adding liquid nitrogen or dry ice into the mixing tank 1；
Agitator, for being stirred to the raw material in the mixing tank 1, the agitator include agitating shaft 61 with
And the more than one paddle 62 on the agitating shaft 61 is fixed on, upper end and the liquid nitrogen or the dry ice of the agitating shaft 61
The discharging opening of storage tank 4 is rotatably assorted connection, and is provided with axle envelope part between the two, on the agitating shaft 61 along its axial direction be provided with liquid nitrogen or
Dry ice passage 611, at least one paddle 62 is hollow-core construction and connected with the liquid nitrogen or dry ice passage 611, and is somebody's turn to do
The paddle 62 of hollow-core construction is provided with multiple ventholes 621；
Mould 7, for contoured foam aluminium；
And transport mechanism 8, mould 7 are supported thereon, moved for carrying mould 7.
When producing foamed aluminium using the present invention, the heating of solid aluminum feedstock is fused into aluminium liquid in aluminium liquid storage tank 2, then will
Aluminium liquid is added in mixing tank 1, and afterwards under the conditions of 650~680 DEG C, the adhesion agent in adhesion agent storage tank 3 is added into batch mixing
In tank 1, after aluminium liquid is well mixed with adhesion agent, agitator is simultaneously stretched into mixing tank 1 by turn on agitator, opens liquid nitrogen or dry ice
The discharging opening of storage tank 4, liquid nitrogen or liquid nitrogen or dry ice endothermic gasification in dry ice storage tank 4, pressure is formed, into agitating shaft 61
Liquid nitrogen or dry ice passage 611, and venthole 621 by the paddle 62 of hollow-core construction and thereon is discharged, liquid nitrogen or dry ice stream
After going out liquid nitrogen or dry ice storage tank 4, continue gradually heat absorption and gasify, big bubble is formed in aluminium liquid, these big bubbles and quilt
Agitator is smashed and forms small bubble, and here it is the foam theory of the present invention, and liquid nitrogen or dry ice heat absorption can be rapidly
Aluminium liquid is cooled, this cooling method is carried out from the inside of aluminium liquid, and cooling is fast and uniformly, so as to reduce the floating of bubble and
The sinking of aluminium liquid, when soon close to aluminium liquid freezing point (being higher than 25~35 DEG C of freezing point), aluminium liquid is discharged via discharge nozzle 11, passed
Send and multiple moulds 7 are supported by mechanism 8, during the mould 7 that transport mechanism 8 carries thereon moves, by going out
The aluminium liquid that expects pipe 11 is discharged fills each mould 7 one by one, so, as long as supplementing raw material in time, it is possible to realize foamed aluminium
Continuous production.
In specific implementation, axle envelope part selects existing conventional mechanical shaft seal, is provided with valve 10 on discharge nozzle 11, just
In the outflow of the control aluminium liquid of safety.
In the present invention, adhesion agent MnO2、Ca、Mg、SiC、Al2O3, Pb, any one or more in charcoal, addition contains
Measure as the 1.8~2.3% of aluminium liquid quality.On the one hand adhesion agent can increase the viscosity of aluminium liquid, ensure the delay of bubble, the opposing party
Face can reduce the freezing point of aluminium liquid.
In one embodiment, in addition to agitator elevating mechanism 9, for the agitator to be carried from the mixing tank 1
Go out.In specific implementation, agitator elevating mechanism 9 can select hoist engine, the conventional jacking equipment such as electric expansion bar or hydraulic cylinder.
In specific implementation, agitator elevating mechanism 9 is connected with liquid nitrogen or dry ice storage tank 4, avoids interference with the rotation of agitating shaft 61.
In one embodiment, the agitator also includes motor 63, output shaft and the stirring of the motor 63
Chain belt drive structure is connected between axle 61.Namely driving wheel is installed on the output shaft of motor 63, pacify on agitating shaft 61
Driven pulley is filled, winding driving-chain or transmission belt between driving wheel and driven pulley, 61 turns of agitating shaft is driven by motor 63 with this
It is dynamic.
Referring to Fig. 1, the present invention can also install cylinder in the bottom of motor 63 or hydraulic cylinder 12 carrys out drive motor 63
Lifting, so as to drive the agitator to lift, save agitator elevating mechanism 9.
In one embodiment, the agitating shaft 61 is provided with more than two layers of the paddle 62, wherein undermost institute
Paddle 62 is stated as hollow-core construction and is connected with the liquid nitrogen or dry ice passage 611.So design, nitrogen and carbon dioxide
Discharged from lower side, bubbling efficiency is high, and the undermost paddle 62 not only can be vented but also can stir, other each layer stirrings
Leaf 62 does not set out stomata, the effect that stirring crushes bubble is only served, in the vertical cross-section outer end of the paddle 62 is greater than
End, to increase the disturbance to aluminium liquid periphery, to reduce the centrifugal motion of aluminium liquid.
In one embodiment, in addition to ultrasonic oscillation device, for carrying out ultrasonic vibration treatment to the mould 7.
When aluminium liquid enters mould 7 and after entrance mould 7 in 15~25S, ultrasonic oscillation device is opened, in ultrasonic wave
In the presence of, bubble conglobulates certainly, and the dispersiveness of bubble is further improved, so as to improve the pore structure of foamed aluminium
Uniformity.
In one embodiment, in addition to foaming agent storage tank 5, the foaming agent storage tank 5 are connected with the mixing tank 1, are used for
Foaming agent is added into the mixing tank 1.In the present invention, although existing liquid nitrogen or dry ice use as foaming agent, specific
The existing foaming agent used can also separately be added in implementation, foaming effect can be increased, addition is generally the 30% of existing usage amount
It can reach existing foaming effect.
In one embodiment, it is coated with heat-barrier material on the wall of liquid nitrogen or dry ice passage 611.Liquid nitrogen can so be prevented
Or dry ice excessively quickly gasifies, ensure that outlet is smooth.
In one embodiment, the venthole 621 is located at the lee face of the paddle 62.So design, equally also may be used
To prevent liquid nitrogen or dry ice from excessively quickly gasifying, and it is not easy to block up into aluminium liquid.
In specific implementation, the discharging opening of aluminium liquid storage tank 2, adhesion agent storage tank 3 and foaming agent storage tank 5 is respectively connected with feed pipe,
Feed pipe is stretched into mixing tank 1, the discharging of aluminium liquid storage tank 2, adhesion agent storage tank 3, foaming agent storage tank 5 and liquid nitrogen or dry ice storage tank 4
Valve is mounted at mouthful, is easy to the adition process of safe each raw material of control.
In one embodiment, the mould 7 is open-topped strip cell body, the inside of strip cell body along its
It is circumferentially with the dividing plate 71 of multiple spaced arrangements.So design, the inner chamber of strip cell body is divided into more by multiple dividing plates 71
Individual shaping chamber, is easy to aluminium liquid continuously to flow out and be molded, and improves production effect；In specific implementation, the transport mechanism 8
It is convenient to carry out for conveyer belt, naturally it is also possible to other transport mechanisms 8, as long as can meet that carrying the steady movement of mould 7 is
Can.
In specific implementation, the mixing tank 1 is coated with insulation material, prevents that aluminium liquid quickly cools down when pouring out aluminium liquid.
In specific implementation, the tank body of liquid nitrogen or dry ice storage tank 4 is provided with regulatable firing equipment, it is convenient control liquid nitrogen and
The outflow of dry ice.
It should be understood that example as described herein and embodiment are not intended to limit the invention, this area only for explanation
Technical staff can make various modifications or change according to it, within the spirit and principles of the invention, any modification for being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. continuous producing apparatus accelerated internal cooling and improve foamed aluminium uniform in foaming degree, it is characterised in that including：Mixing tank, as the mixing place of raw material, lower end is provided with discharge nozzle；Aluminium liquid storage tank, connected with the mixing tank, for adding aluminium liquid into the mixing tank；Adhesion agent storage tank, connected with the mixing tank, for adding adhesion agent into the mixing tank；Liquid nitrogen or dry ice storage tank, are connected with the mixing tank, for adding liquid nitrogen or dry ice into the mixing tank；Agitator, for being stirred to the raw material in the mixing tank, the agitator includes agitating shaft and fixation More than one paddle on the agitating shaft, the upper end of the agitating shaft and the liquid nitrogen or the discharging opening of dry ice storage tank Be rotatably assorted connection, and is provided with axle envelope part between the two, and liquid nitrogen or dry ice passage are provided with along its axial direction on the agitating shaft, and at least one The individual paddle is hollow-core construction and connected with the liquid nitrogen or dry ice passage, and is set on the paddle of the hollow-core construction There are multiple ventholes；Mould, for contoured foam aluminium；And transport mechanism, mould supports thereon, for carrying mould movement.
- 2. accelerate the continuous producing apparatus that internal cooling improves foamed aluminium uniform in foaming degree, its feature as claimed in claim 1 It is, in addition to agitator elevating mechanism, for the agitator to be proposed from the mixing tank.
- 3. accelerating the continuous producing apparatus that internal cooling improves foamed aluminium uniform in foaming degree as claimed in claim 1 or 2, it is special Sign is that the agitator also includes motor, and chain belt biography is connected between the output shaft of the motor and the agitating shaft Dynamic structure.
- 4. accelerating the continuous producing apparatus that internal cooling improves foamed aluminium uniform in foaming degree as claimed in claim 1 or 2, it is special Sign is that the agitating shaft is provided with more than two layers of the paddle, wherein the undermost paddle is hollow-core construction And connected with the liquid nitrogen or dry ice passage.
- 5. accelerating the continuous producing apparatus that internal cooling improves foamed aluminium uniform in foaming degree as claimed in claim 1 or 2, it is special Sign is, in addition to foaming agent storage tank, and the foaming agent storage tank connects with the mixing tank, for being added into the mixing tank Foaming agent.
- 6. accelerating the continuous producing apparatus that internal cooling improves foamed aluminium uniform in foaming degree as claimed in claim 1 or 2, it is special Sign is, in addition to ultrasonic oscillation device, for carrying out ultrasonic vibration treatment to the mould.
- 7. accelerating the continuous producing apparatus that internal cooling improves foamed aluminium uniform in foaming degree as claimed in claim 1 or 2, it is special Sign is that the mould is open-topped strip cell body, and the inside of strip cell body is circumferentially with multiple phases along it Mutual spaced apart dividing plate.
- 8. accelerating the continuous producing apparatus that internal cooling improves foamed aluminium uniform in foaming degree as claimed in claim 1 or 2, it is special Sign is that the transport mechanism is conveyer belt.
- 9. accelerating the continuous producing apparatus that internal cooling improves foamed aluminium uniform in foaming degree as claimed in claim 1 or 2, it is special Sign is that the venthole is located at the lee face of the paddle.
- 10. accelerate the continuous producing apparatus that internal cooling improves foamed aluminium uniform in foaming degree as claimed in claim 1 or 2, its It is characterised by, heat-barrier material is coated with liquid nitrogen or the dry ice conduit wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710842691.3A CN107475550A (en) | 2017-09-18 | 2017-09-18 | A kind of continuous producing apparatus accelerated internal cooling and improve foamed aluminium uniform in foaming degree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710842691.3A CN107475550A (en) | 2017-09-18 | 2017-09-18 | A kind of continuous producing apparatus accelerated internal cooling and improve foamed aluminium uniform in foaming degree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107475550A true CN107475550A (en) | 2017-12-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710842691.3A Withdrawn CN107475550A (en) | 2017-09-18 | 2017-09-18 | A kind of continuous producing apparatus accelerated internal cooling and improve foamed aluminium uniform in foaming degree |
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| Country | Link |
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| CN (1) | CN107475550A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108342520A (en) * | 2018-04-12 | 2018-07-31 | 福建省农业科学院亚热带农业研究所（福建省农业科学院蔗麻研究中心） | A kind of method brown sugar syrup sanding equipment modelled after an antique and its working method |
| CN108405839A (en) * | 2018-03-28 | 2018-08-17 | 广德盛源电器有限公司 | The placing installation of brake drum in a kind of brake |
| CN113774248A (en) * | 2021-07-27 | 2021-12-10 | 薛有为 | Equipment and method for producing layered density foamed aluminum |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203002252U (en) * | 2012-10-11 | 2013-06-19 | 程涛 | Stirrer for producing foamed aluminum by blowing method |
| CN106493896A (en) * | 2016-11-30 | 2017-03-15 | 苏州恒昇海绵机械制造有限公司 | A kind of sponge bubbling machine with clean-out opening shaft |
| CN107058781A (en) * | 2017-06-16 | 2017-08-18 | 尚圣杰 | The continuous foamed new technology of metal |
-
2017
- 2017-09-18 CN CN201710842691.3A patent/CN107475550A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203002252U (en) * | 2012-10-11 | 2013-06-19 | 程涛 | Stirrer for producing foamed aluminum by blowing method |
| CN106493896A (en) * | 2016-11-30 | 2017-03-15 | 苏州恒昇海绵机械制造有限公司 | A kind of sponge bubbling machine with clean-out opening shaft |
| CN107058781A (en) * | 2017-06-16 | 2017-08-18 | 尚圣杰 | The continuous foamed new technology of metal |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405839A (en) * | 2018-03-28 | 2018-08-17 | 广德盛源电器有限公司 | The placing installation of brake drum in a kind of brake |
| CN108342520A (en) * | 2018-04-12 | 2018-07-31 | 福建省农业科学院亚热带农业研究所（福建省农业科学院蔗麻研究中心） | A kind of method brown sugar syrup sanding equipment modelled after an antique and its working method |
| CN113774248A (en) * | 2021-07-27 | 2021-12-10 | 薛有为 | Equipment and method for producing layered density foamed aluminum |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171215 |
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| WW01 | Invention patent application withdrawn after publication |