CN107502770A - A kind of production equipment accelerated internal cooling and improve foamed aluminium uniform in foaming degree - Google Patents

A kind of production equipment accelerated internal cooling and improve foamed aluminium uniform in foaming degree Download PDF

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Publication number
CN107502770A
CN107502770A CN201710841357.6A CN201710841357A CN107502770A CN 107502770 A CN107502770 A CN 107502770A CN 201710841357 A CN201710841357 A CN 201710841357A CN 107502770 A CN107502770 A CN 107502770A
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CN
China
Prior art keywords
mixing tank
dry ice
liquid nitrogen
production equipment
internal cooling
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Application number
CN201710841357.6A
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Chinese (zh)
Inventor
尚诚德
尚圣杰
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尚圣杰
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Application filed by 尚圣杰 filed Critical 尚圣杰
Priority to CN201710841357.6A priority Critical patent/CN107502770A/en
Publication of CN107502770A publication Critical patent/CN107502770A/en
Withdrawn legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D25/00Special casting characterised by the nature of the product
    • B22D25/005Casting metal foams
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/08Alloys with open or closed pores
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/08Alloys with open or closed pores
    • C22C2001/083Foaming process in molten metal other than by powder metallurgy

Abstract

The invention discloses a kind of production equipment 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;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;And mould.The present invention is using liquid nitrogen or dry ice as foaming agent, safety and environmental protection, and cost is low, and liquid nitrogen or dry ice endothermic gasification, cooled down from the inside of aluminium liquid, this mode cools fast and uniform, so as to reduce the sinking of the floating of bubble and aluminium liquid, solves uneven problem caused by foaming graded.

Description

A kind of production equipment accelerated internal cooling and improve foamed aluminium uniform in foaming degree
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 production equipment 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 accelerate internal cooling improve foamed aluminium uniform in foaming degree production equipment.
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 production equipment of aluminium uniform in foaming degree, including:
Mixing tank, the mixing place as raw material;
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;
And mould, for contoured foam aluminium, the bottom open design of the mixing tank, the bottom of the mould Portion's inwall is provided with annular groove, and the bottom of the mixing tank is inserted in the annular groove, and is provided with seal between the two.
Further, the seal is the asbestos being filled between the bottom of the mixing tank and the annular groove.
Further, in addition to mixing tank elevating mechanism, for the mixing tank to be proposed from the mould.
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 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, the present invention enormously simplify foamed aluminium without previously prepared foamed aluminium blank Production technology, production cost is reduced, 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 asbestos, 8 mixing tank elevating mechanisms, 9 agitator elevating mechanisms, 10 valves, 11 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 production equipment accelerated internal cooling and improve foamed aluminium uniform in foaming degree of the present invention, including:
Mixing tank 1, the mixing place as raw material;
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;
And mould 7, for contoured foam aluminium, the bottom open design of the mixing tank 1, the mould 7 Bottom interior wall be provided with annular groove, the bottom of the mixing tank 1 is inserted in the annular groove, and is provided with sealing between the two Part.
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), mixing tank 1 and agitator are proposed, aluminium Liquid stream enters mould 7, is molded afterwards according to existing method.
It is noted that when proposing and cooling and stirring device, the outflow of liquid nitrogen or dry ice is kept, is easy to next use.
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, the seal is to be filled between bottom and the annular groove of the mixing tank 1 Asbestos.It is convenient to implement using this design, and sealing effectiveness is reliable;Axle envelope part selects existing conventional mechanical shaft seal.
In one embodiment, in addition to mixing tank elevating mechanism 8, for by the mixing tank 1 from the mould 7 It is proposed.In specific implementation, mixing tank elevating mechanism 8 can select hoist engine, and the conventional lifting such as electric expansion bar or hydraulic cylinder is set It is standby.
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 11 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, only serves the effect that stirring crushes bubble, 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 that liquid nitrogen or dry ice are excessively quick vaporization, 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 discharge nozzle, Discharge nozzle 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 10 is mounted at mouthful, is easy to the adition process of safe each raw material of control.
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)

  1. A kind of 1. production equipment accelerated internal cooling and improve foamed aluminium uniform in foaming degree, it is characterised in that including:
    Mixing tank, the mixing place as raw material;
    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;
    And mould, for contoured foam aluminium, the bottom open design of the mixing tank, in the bottom of the mould Wall is provided with annular groove, and the bottom of the mixing tank is inserted in the annular groove, and is provided with seal between the two.
  2. 2. accelerate the production equipment that internal cooling improves foamed aluminium uniform in foaming degree as claimed in claim 1, it is characterised in that The seal is the asbestos being filled between the bottom of the mixing tank and the annular groove.
  3. 3. accelerating the production equipment that internal cooling improves foamed aluminium uniform in foaming degree as claimed in claim 1 or 2, its feature exists In, in addition to mixing tank elevating mechanism, for the mixing tank to be proposed from the mould.
  4. 4. accelerating the production equipment that internal cooling improves foamed aluminium uniform in foaming degree as claimed in claim 1 or 2, its feature exists In, in addition to agitator elevating mechanism, for the agitator to be proposed from the mixing tank.
  5. 5. accelerating the production equipment that internal cooling improves foamed aluminium uniform in foaming degree as claimed in claim 1 or 2, its feature exists In the agitator also includes motor, and chain V belt translation knot is connected between the output shaft of the motor and the agitating shaft Structure.
  6. 6. accelerating the production equipment that internal cooling improves foamed aluminium uniform in foaming degree as claimed in claim 1 or 2, its feature exists Be provided with more than two layers of the paddle in, the agitating shaft, wherein the undermost paddle be hollow-core construction and with Liquid nitrogen or dry ice the passage connection.
  7. 7. accelerating the production equipment that internal cooling improves foamed aluminium uniform in foaming degree as claimed in claim 1 or 2, its feature exists In, in addition to foaming agent storage tank, the foaming agent storage tank connect with the mixing tank, for adding foaming into the mixing tank Agent.
  8. 8. accelerating the production equipment that internal cooling improves foamed aluminium uniform in foaming degree as claimed in claim 1 or 2, its feature exists In:Also include ultrasonic oscillation device, for carrying out ultrasonic vibration treatment to the mould.
  9. 9. accelerating the production equipment that internal cooling improves foamed aluminium uniform in foaming degree as claimed in claim 1 or 2, its feature exists In:The venthole is located at the lee face of the paddle.
  10. 10. accelerate the production equipment that internal cooling improves foamed aluminium uniform in foaming degree, its feature as claimed in claim 1 or 2 It is:Heat-barrier material is coated with liquid nitrogen or the dry ice conduit wall.
CN201710841357.6A 2017-09-18 2017-09-18 A kind of production equipment accelerated internal cooling and improve foamed aluminium uniform in foaming degree Withdrawn CN107502770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710841357.6A CN107502770A (en) 2017-09-18 2017-09-18 A kind of production equipment accelerated internal cooling and improve foamed aluminium uniform in foaming degree

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Application Number Priority Date Filing Date Title
CN201710841357.6A CN107502770A (en) 2017-09-18 2017-09-18 A kind of production equipment accelerated internal cooling and improve foamed aluminium uniform in foaming degree

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CN107502770A true CN107502770A (en) 2017-12-22

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109128104A (en) * 2018-08-09 2019-01-04 云南科威液态金属谷研发有限公司 A kind of preparation facilities of low melting point foam metal, method and low melting point foam metal
CN109136619A (en) * 2018-10-09 2019-01-04 合肥斯姆雷品牌管理有限公司 It is a kind of that internal cooling foamed aluminium foamed system and method may be implemented
CN109604569A (en) * 2018-11-27 2019-04-12 安徽省鸣新材料科技有限公司 A kind of foaming foamed aluminium casting and forming device and method
CN112812266A (en) * 2021-01-05 2021-05-18 江苏铁锚玻璃股份有限公司 IPDI type transparent high-strength polyurethane plate and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102847468A (en) * 2012-10-11 2013-01-02 程涛 Mixer for producing foamed aluminium by air blowing
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
CN106955618A (en) * 2017-04-24 2017-07-18 绵竹市凯瑞机械加工有限公司 The machining mixing plant of stirring efficiency can be accelerated
CN107058781A (en) * 2017-06-16 2017-08-18 尚圣杰 The continuous foamed new technology of metal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102847468A (en) * 2012-10-11 2013-01-02 程涛 Mixer for producing foamed aluminium by air blowing
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
CN106955618A (en) * 2017-04-24 2017-07-18 绵竹市凯瑞机械加工有限公司 The machining mixing plant of stirring efficiency can be accelerated
CN107058781A (en) * 2017-06-16 2017-08-18 尚圣杰 The continuous foamed new technology of metal

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109128104A (en) * 2018-08-09 2019-01-04 云南科威液态金属谷研发有限公司 A kind of preparation facilities of low melting point foam metal, method and low melting point foam metal
CN109128104B (en) * 2018-08-09 2021-09-07 云南科威液态金属谷研发有限公司 Preparation device and method of low-melting-point foam metal and low-melting-point foam metal
CN109136619A (en) * 2018-10-09 2019-01-04 合肥斯姆雷品牌管理有限公司 It is a kind of that internal cooling foamed aluminium foamed system and method may be implemented
CN109604569A (en) * 2018-11-27 2019-04-12 安徽省鸣新材料科技有限公司 A kind of foaming foamed aluminium casting and forming device and method
CN109604569B (en) * 2018-11-27 2021-03-19 山东高速高新材料科技有限公司 Foaming-method foamed aluminum casting forming device and method
CN112812266A (en) * 2021-01-05 2021-05-18 江苏铁锚玻璃股份有限公司 IPDI type transparent high-strength polyurethane plate and preparation method thereof

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Application publication date: 20171222