CN109047766A - A kind of foaming metal manufacturing device using plasma spraying - Google Patents
A kind of foaming metal manufacturing device using plasma spraying Download PDFInfo
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- CN109047766A CN109047766A CN201810729594.8A CN201810729594A CN109047766A CN 109047766 A CN109047766 A CN 109047766A CN 201810729594 A CN201810729594 A CN 201810729594A CN 109047766 A CN109047766 A CN 109047766A
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- Prior art keywords
- foaming
- carrier
- melting pipeline
- melting
- tracheae
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
- B22F3/1121—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers
- B22F3/1125—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers involving a foaming process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2201/00—Treatment under specific atmosphere
- B22F2201/10—Inert gases
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Coating By Spraying Or Casting (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention discloses a kind of foaming metal manufacturing device using plasma spraying, comprising: mixing vessel generates the mixture of metal powder, blowing agent powder and thickener powder；Funnelform hopper, the enlarged portion above hopper receive the mixture of mixing vessel investment, connect narrow funnel pipe below enlarged portion, be connected to the bulge of melting pipeline one end；Screw rod, the driving portion that one end connection drives its rotation to promote, the other end protrude into the bulge of melting pipeline one end；Melting pipeline and the carrier tracheae connecting with the melting pipeline, melting pipeline receive the fusant formed after the metal powder in the mixture melts from the screw rod, and carrier tracheae provides meltallizing kinergety for the fusant；Foaming mould and the conveyer belt for transporting foaming mould, foaming mould are connected to melting pipeline and foam under the action of foaming agent and carrier gas to fusant, and foaming mould is transported subsequent cooling zone and discharge area by the conveyer belt.
Description
Technical field
It is specifically a kind of using differential such as metal and foaming agents as raw material, utilization the invention belongs to foaming metal manufacturing device
The device of plasma spraying manufacture foaming metal.
Background technique
Foaming metal is prepared under normal circumstances commonly using aluminium, for example prepares foaming aluminum, is utilized under aluminium molten condition
Foaming agent generates foaming gas to generate air entrapment, obtains the material more than light and stomata.Foaming metal has absorption to impact, light weight
Change, porous characteristic is widely used in aircraft, automotive field, power station, the heat exchanger field of power supply group, semiconductor or
The heat release of various electronic products, the noise reduction machine of large scale equipment, the catalysis of chemical plant, the component of space flight and aviation industry, impact are inhaled
Receive device, fuel cell, filter, shock absorbent, electromagnetic wave shielding, the multiple fields such as Discussion on architecture dress material.Previous foaming metal
It is the dissolution for passing through metal using crucible, cumulative, foaming, cooling process manufactures.In order to improve the performance of foaming metal, Korea Spro
Nowadays occasional is mixed using the technology of its domestic publication 2013-0106894 with CNT graphene etc. for state.
Previous methods using crucible manufacture foaming metal are high-temperature fusions, since the oxidation of metal generates brittleness, with
The activity of foaming agent (such as titantium hydride TiH2), can become highly unstable.Representative foaming agent titantium hydride (TiH2) is mixed into molten
When melting metal, vigorous reaction, titanium (Ti) and hydrogen (H2) are separated into gas, cause foaming agent premature degradation, and the leakage of hydrogen makes
Pore opening changes very greatly, and according to the position of foaming metal, the difference of Density Distribution is also very big.And due to the stomata of foaming metal
It can only be adjusted with the mixing velocity of foaming agent and molten metal, actually be unable to control titanium (Ti) and hydrogen (H2) decomposition causes
Pore opening and Density Distribution situation.
It after foaming metal product is put into foaming agent in molten metal first, is put into the mold of certain specification, does blocking
Shape.But since stomata and Density Distribution are uneven, can not all be adapted in product, first after its bulk cutting, understand
The uniform part of size and Density Distribution of stomata, then pore opening and the non-uniform part of Density Distribution are removed, thus cause
Processing charges increases, and cutting residue increases, and wastes raw material, reduces earning rate.
Summary of the invention
Goal of the invention: the purpose of the present invention is researching and developing a kind of foaming metal manufacturing device using plasma spraying, so that foaming
The pore opening and Density Distribution of metal are uniform, reduce processing charges, and residue is cut in reduction.
Technical solution: to achieve the goals above, the present invention provides a kind of foaming metal manufacturing device using plasma spraying,
Include:
Mixing vessel, the mixing vessel generate the mixture of metal powder, blowing agent powder and thickener powder；
Funnelform hopper, the enlarged portion above the hopper receive the mixture of mixing vessel investment, the enlarged portion
Lower section connects narrow funnel pipe, is connected to the bulge of melting pipeline one end；
Screw rod, the driving portion that one end connection drives its rotation to promote, the other end protrude into the expansion of melting pipeline one end
Portion, transfer are kneaded the mixture put into from funnel pipe；
Melting pipeline and the carrier tracheae connecting with the melting pipeline, the melting pipeline receive institute from the screw rod
The fusant formed after the metal powder in mixture melts is stated, the carrier tracheae provides meltallizing for the fusant and moves energy
Amount；
Foaming mould and the conveyer belt for transporting foaming mould, the foaming mould are connected to and are foaming with the melting pipeline
It foams under the action of agent and carrier gas to fusant, foaming mould is transported subsequent cooling zone and row by the conveyer belt
Area out.
The mixing vessel is up and down and to roll or mechanical vibration, or to rock and shake combination
Movement；
The screw rod can be an axis or multiaxis screw rod, the driving portion of one end connection as power-driven mechanism,
It drives screw rod to rotate to the other end to promote, transfer is kneaded the mixture put into from funnel pipe；
The melting pipeline is encased with melting heating cloth, and the melting heating cloth can be heated in a manner of high-frequency induction；
The foaming mould is located in the Freight Office comprising conveyer belt, and the Freight Office is divided into foaming zone and cooling zone；?
The foaming zone, non-active gas form positive pressure, i.e. internal pressure is higher than external pressure, prevent in unnecessary air entrance
Portion；The molten metal forms the first foaming metal after foaming in foaming mould, be transported to cooling zone by conveyer belt；Cold
But area, by way of circularly cooling, the first foaming metal it is cooling after form the second foaming metal, then by conveyer belt by the
Two foaming metals are transported to the discharge area outside Freight Office.
Preferably, the carrier tracheae is 2, is connected to the melting pipeline two sides；A wherein carrier tracheae
End connect carrier gas supply unit, in addition the end connection of carrier tracheae is adjustable the carrier gas flow and pressure
Adjust gate valve；It is described melting pipeline (31) side and with screw rod (22) coupling part at be additionally provided with temperature sensor
(33), the engineering temperature of measurement melting pipeline (31) interior fusant；
Preferably, the carrier tracheae is 1, is connected to the melting pipeline side；The end of the carrier tracheae connects
Carrier gas supply unit is connect, the adjustment gate valve for being adjustable carrier gas flow and pressure is additionally provided on the carrier tracheae；Described molten
Melt the side of pipeline (31) and be additionally provided with temperature sensor (33) at screw rod (22) coupling part, measurement melting pipeline (31)
The engineering temperature of interior fusant；
Preferably, it is additionally provided with carrier gas bleed pipe, the melting pipeline is encased by carrier gas bleed pipe, the carrier tracheae
With one or more connection of carrier gas bleed pipe；
Preferably, the cooling zone, the refrigeration being supplied to by the refrigerant supply unit outside Freight Office and the tracheae that freezes
Gas carries out circularly cooling；The refrigeration gas is non-active gas, can prevent the oxidation of the first foaming metal；
Preferably, the foaming mould includes mould upstream and mold lower part and the melting with the melting pipeline connection
Object input port；The mould upstream includes multiple exhaust outlets；The fusant input port is located at the mould upstream or the mould
Has any place in lower part or both contact portion.
The advantages of the present invention: the present invention is the foaming metal manufacturing device using plasma spraying, metal powder
And the differential such as foaming agent meltallizing together with non-active gas, pore opening and Density Distribution are uniform, reduce processing charges, inhibit to cut
Cut the generation of residue；In addition, utilizing non-active gas in foaming metal forming process, the oxygen of foaming metal can be prevented
Change.
Detailed description of the invention
Fig. 1 is foaming metal manufacturing device overall structure diagram of the invention；
Fig. 2 is the perspective view of the foaming mould of the embodiment of the present invention one；
Fig. 3 is the schematic diagram of the 2nd fusing department of the embodiment of the present invention two；
Fig. 4 is the schematic diagram of the 3rd fusing department of the embodiment of the present invention three；
Fig. 5 is the foaming aluminum schematic diagram of internal structure that present invention manufacture obtains；
Fig. 6 is the schematic diagram of internal structure that obtained foaming aluminum is manufactured by conventional crucibles method one；
Fig. 7 is the schematic diagram of internal structure that obtained foaming aluminum is manufactured by conventional crucibles method two.
Appended drawing reference:
10: mixing vessel；20: hopper；201: enlarged portion；202: hopper pipeline；
21: driving portion；22: screw rod；30: the 1 fusing departments；30a: the 2 fusing department；
30b: the 3 fusing department；31: melting pipeline；310: bulge；32: melting heating cloth；
33: temperature sensor；34: carrier gas supply unit；35: carrier tracheae；36: adjustment gate valve；
37: carrier gas bleed pipe；40: Freight Office；41: foaming heating part；42: conveyer belt；
43: the 1；44: the 2；50: refrigeration gas supply unit；51: refrigeration tracheae；
60: foaming mould；61: mould upstream；62: mold lower part；63: fusant input port；
64: exhaust outlet；A: foaming zone；B: cooling zone；C: discharge area.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, combined with specific embodiments below with experiment number
According to the present invention will be described in detail.
A kind of foaming metal manufacturing device using plasma spraying, comprising:
Mixing vessel, the mixing vessel generate the mixture of metal powder, blowing agent powder and thickener powder；
Funnelform hopper, the enlarged portion above the hopper receive the mixture of mixing vessel investment, the enlarged portion
Lower section connects narrow funnel pipe, is connected to the bulge of melting pipeline one end；
Screw rod, the driving portion that one end connection drives its rotation to promote, the other end protrude into the expansion of melting pipeline one end
Portion, transfer are kneaded the mixture put into from funnel pipe；
Melting pipeline and the carrier tracheae connecting with the melting pipeline, the melting pipeline receive institute from the screw rod
The fusant formed after the metal powder in mixture melts is stated, the carrier tracheae provides meltallizing for the fusant and moves energy
Amount；
Foaming mould and the conveyer belt for transporting foaming mould, the foaming mould are connected to and are foaming with the melting pipeline
It foams under the action of agent and carrier gas to fusant, foaming mould is transported subsequent cooling zone and row by the conveyer belt
Area out.
Preferably, the carrier tracheae is 2, is connected to the melting pipeline two sides；A wherein carrier tracheae
End connect the carrier gas supply unit, in addition the end connection of a carrier tracheae is adjustable the carrier gas flow and pressure
The adjustment gate valve of power；It is described melting pipeline (31) side and with screw rod (22) coupling part at be additionally provided with temperature sensor
(33), the engineering temperature of measurement melting pipeline (31) interior fusant；
Preferably, the manufacturing device, the carrier tracheae are 1, are connected to the melting pipeline side；The carrier
The end of tracheae connects the carrier gas supply unit, is additionally provided with the tune for being adjustable carrier gas flow and pressure on the carrier tracheae
Whole gate valve；It is described melting pipeline (31) side and with screw rod (22) coupling part at be additionally provided with temperature sensor (33),
The engineering temperature of measurement melting pipeline (31) interior fusant；
Preferably, it is additionally provided with carrier gas bleed pipe, the melting pipeline is encased by carrier gas bleed pipe, the carrier tracheae
With one or more connection of carrier gas bleed pipe；
Preferably, the cooling zone, the refrigeration being supplied to by the refrigerant supply unit outside Freight Office and the tracheae that freezes
Gas recycle cold；The refrigeration gas is non-active gas, can prevent the oxidation of the first foaming metal；
Preferably, the foaming mould includes mould upstream and mold lower part and the melting with the melting pipeline connection
Object input port；The mould upstream includes multiple exhaust outlets；The fusant input port is located at the mould upstream or the mould
Has any place in lower part or both contact portion.
Examples set forth below can be deformed into other states, and the scope of the present invention is confined to following embodiments incessantly.
The embodiment of the present invention is to have the people of usual knowledge in this field and more comprehensively illustrating and provide.In addition, top,
The term of lower part, the Locations such as front is only related with the content of drawing.In fact, foaming metal device can selected arbitrarily
It selects property side to be used up, in actual use, direction in space is changed according to the direction and rotation of manufacturing device.
The foaming metal manufacturing device of the embodiment of the present invention, by the powder of metal, foaming agent etc. and non-active gas one
Meltallizing is played, pore opening and Density Distribution are uniform, reduce processing charges, and cutting residue is inhibited to occur.For this purpose, using above-mentioned
The manufacturing process of device detailed description foaming metal.Foaming metal is internal leachy metal, such as foaming aluminum, generally have 90~
The specific gravity of 95% porosity and 0.2~1.0 range.
Fig. 1 is the schematic diagram of the foaming metal manufacturing device (100) of the embodiment of the present invention one.It is not in stringent ratio
Device figure, for the convenience illustrated, it is understood that there may be do not have the constituent element occurred on drawing.
According to Fig. 1, foaming metal manufacturing device (100) is by mixing vessel (10), and hopper (20), screw rod (22), the 1st is molten
Melt portion (30), Freight Office (40) and refrigerator supply unit (50) are constituted.The metal powder of mixing vessel (10) formation differential state,
The mixed mixture (PM) such as blowing agent powder, thickening agents powder.The metal powder is by single metal or above-mentioned single metal
Alloy powder constitute, aluminium and its alloy are its representatives.Aluminium and its alloy are the representatives to contribute to the lightweight of its material
Property metal material, not only lightweight, relative to synthetic resin or timber, tension stress and wearability are also relatively strong.The metal powder
The average particle size at end is about 50~500 μm, within the scope of the present invention, be may be adjusted to smaller than average particle size.
The foaming agent includes but is not limited to titantium hydride (TiH2), is hydrogenated pick (ZrH2), polyvinyl alcohol, polyurethane, vinegar
Acid, phenolic resin, cellulose, sodium phosphate, sodium chloride, calcium chloride, sodium acetate, two iron of chlorination etc., wherein titantium hydride is best.Institute
Two or more foaming agents can be combined into according to the type and usage of metal by stating foaming agent.There is calcium in above-mentioned thickener, chlorine,
Nitrogen, oxygen, carbon dioxide, water, argon etc. are more more useful than calcium.The thickener can be combined according to the type and usage of metal
At two or more thickeners.The average particle size of above-mentioned foaming agent and thickener is probably 50~500 μm, in scope of the invention
It inside may be adjusted to smaller than average particle size.
It is inner in mixing vessel (10), put into the metal of differential state, foaming agent, thickener, mixing vessel (10) up and down,
It rolls, makes mixed uniformly mixture.The present invention limits to above-mentioned motion mode incessantly, wants without departing from of the invention
Point, the personnel for having knowledge belonging to the present invention can be carried out the deformation of multiplicity.Such as by the mechanical shake of mixing vessel (10)
It is dynamic to make mixture (PM) or additionally apply flexibly above-mentioned vibration mode.In addition, mixture (PM) can also be additionally plus combination
Agent keeps the performance of foaming metal of the invention more preferable.
Finely dispersed mixture (PM) is put into hopper (20) using mixing vessel (10), mixture (PM) is through punishment in advance
The enlarged portion (201) on bucket (20) top, passes through the hopper pipeline (202) of lower narrow with funnel shaped, and mixture (PM) is supplied
It is given to bulge (310) and screw rod (22) one end of melting pipeline one end.The driving that screw rod (22) is connected by one end
The same driving portion of motor (21) drives rotation, and when screw rod (22) rotation promotes, mixture (PM) is shifted into the 1st fusing department
(30).Screw rod (22) can use an axis spiral that multiaxis spiral can also be used to improve dispersibility.Above-mentioned multiaxis spiral is 2
Kind or more spiral in the same direction establish.Screw rod (22) can start in room temperature, according to circumstances, to be lower than above-mentioned hair
The decomposition temperature of infusion preheats.Screw rod (22) compounding mixture (PM) simultaneously transfers the mixture (PM).It is mixed according to these
Refining, metal powder, blowing agent powder, thickener powder obtain relatively uniform mixing.
1st fusing department (30) includes melting pipeline (31), melting heating cloth (32), temperature sensor (33), carrier gas confession
It gives portion (34), carrier tracheae (35) and adjustment gate valve (36).Melting pipeline (31) is connect with screw rod (22), in mixture (PM)
Metal powder melt after fusant (M) meltallizing for being formed be supplied to the foaming moulds (60) of Freight Office (40).Melting heating cloth
(32) melting pipeline (31) is encased, is instant heating, is heated using high-frequency induction, the melting pipeline (31) of metal material is put into
In melting heating cloth (32) of coiled type, then electric current is passed to, melting pipeline (31) surface nearby generates eddy current heating.
Above-mentioned metal powder can be heated to the degree sufficiently melted by the internal engineering temperature of melting pipeline (31).Aluminium powder
End maintains 620~680 DEG C of engineering temperature, melts aluminium powder.When above-mentioned engineering temperature is such as lower than 620 DEG C, fusant (M) is sticked
Degree is high, is difficult meltallizing, is such as higher than 680 DEG C, then the formation rate of stomata reduces.Melting heating cloth (32) instant heating makes above-mentioned engineering
Temperature is reached for most preferably with most fast speed.In addition to aluminium, other metal powders are also that equally, melting heating cloth (32) keeps temperature anxious
Speed rises the melting engineering temperature for reaching respective metal powder.The engineering temperature melts the side of pipeline (31) to be arranged in
And it is preferably measured with the temperature sensor (33) of screw rod (22) coupling part.Fusant (M) is rapidly to melt in this way, described
Foaming agent is evenly distributed in fusant (M).
Carrier tracheae (35) is from the carrier gas that carrier gas supply unit (34) is supplied to melting pipeline (31) with defined speed
Degree sprays.The carrier gas is the non-active gas such as argon (Ar), as nitrogen (N2) etc., therefore in metal powders melt, no
It aoxidizes.In addition, the carrier gas due to the ejection of defined speed, be fusant (M) meltallizing to foaming mould (60) when
Kinergety is provided.Using carrier gas as the means of transport of mobile fusant (M), it is preceding fast that foaming is occurred into for the foaming agent
Speed is moved to fusant (M) in foaming mould (60).In addition, the diameter of melting pipeline (31) is less than screw rod (22) diameter,
Make the foaming of fusant (M) not instead of in melting pipeline (31), is carried out in Mold (60).On the one hand, the carrier gas can
Voluntarily cause foaming effect, the fusant (M) put into foaming mould (60) contributes to form stomata, i.e., in foaming mould (60)
In put into fusant (M) and carrier gas simultaneously；On the other hand, foaming mould (60) is inner foam when, fusant (M) is inner uniformly to be divided
Scattered foaming agent plays a major role, and carrier gas also partially plays the role of forming stomata.
The flow and pressure of the carrier gas are controlled by adjustment gate valve (36).Carrier tracheae (35) is 2, is connected to
The two sides of pipeline (31) are melted, wherein the end of a carrier tracheae (35) connects carrier gas supply unit (34), another carrier
End setting adjustment gate valve (36) of tracheae (35)；The carrier tracheae (35) of carrier gas supply unit (34) is connected, for fusant
(M) direction induction is inner to Mold (60), is tiltably connected in melting pipeline (31), this inclination makes the wherein carrier
The flow direction of gas is towards foaming mould (60).This fusant (M) by melting is transplanted on foaming mould by carrier gas
(60) method is plasma spraying.About foaming mould (60), then it is described in detail.
It can foam in fusant (M) meltallizing to foaming mould (60).Illustrated with titantium hydride (TiH2), titantium hydride
(TiH2) titanium (Ti) and hydrogen (H2) are resolved into, hydrogen (H2) obtains the first foaming metal (FMl) in the inner formation stomata of fusant (M).
Under normal circumstances, the first foaming metal (FMl) will increase more than 10 times than fusant (M) volume.Configured with hair around mold (60)
It steeps heating part (41), maintains uniform blowing temperature needed for above-mentioned foaming process.The best heating of foaming heating part (41)
Mode is high frequency, but other methods are also feasible.If foaming heating part (41) is high-frequency heating mode, foaming mould (60) then makes
With the metal material of similar stainless steel.
In addition, foaming mould (60) can be placed in Freight Office (40) in the form of conveyer belt etc. existing on conveyer belt (42).
Different temperature is arranged in foaming heating part (41) in each stage, when transferring foaming mould (60), above-mentioned foaming process is maintained to stablize.
When necessary, the 1st (43) are set in Freight Office (40), the foaming mould (60) that foaming process terminates is passed through.This foamed
The place that journey is formed is foaming zone (A).Foaming zone (A) maintains positive pressure preferably by non-active gas, i.e. internal pressure is higher than
External pressure prevents unnecessary air from entering inside.
Then, the foaming mould (60) of the first foaming metal (FM1) terminated containing foaming process is transplanted on cooling zone
(B).The refrigeration that cooling field (B) is supplied to by Freight Office (40) external refrigerant supply unit (50) and refrigeration tracheae (51)
Gas recycle cold.The refrigeration gas is the non-active gas of similar argon (Ar), nitrogen (N2), can prevent the first foaming metal
(FM1) oxidation.
For the circulation for the gas that freezes, settable 2nd (44) in the end of cooling field (B).By cooling field (B),
One foaming metal (FM1) becomes the second foaming metal (FM2).Make the cooling in cooling field (B) transfer foaming mould (60)
Process is formed more stablely.The foaming mould (60) for terminating the cooling procedure is transplanted on discharge area (C), passes through discharge area
(C) foaming mould (60) is after the external dismantling of Freight Office (40), then decomposes the second foaming metal (FM2).
The foaming metal manufacturing device of embodiment according to the present invention, in the inner gold of mixing vessel (10) and screw rod (22)
The powder such as category, foaming agent, thickener are uniformly mixed, and metal powder is melt into rapidly fusant (M) in melting pipeline (31), are foamed
The decomposition of agent is only carried out foaming mould (60) is inner, and at this moment, the foaming agent is evenly distributed fusant (M) is inner, pore opening
And the Density Distribution of position is uniform.When needing using foaming metal, do not have to cutting foaming metal, the hair for cutting residue can be made
It is raw to minimize, reduce processing charges；Again because non-active gas is used as carrier gas and refrigeration gas, foaming metal can be prevented
Oxidation.
Fig. 2 is the perspective diagram of the foaming mould (60) of the manufacturing device (100) of embodiment to illustrate the invention, this system
Device (100) are made with reference to Fig. 1.
According to Fig. 2, foaming mould (60) is made of mould upstream (61) and mold lower part (62), is embodied and is formed the second foaming
The space of metal (FM2).Under one side or upper die (61) and mold including mould upstream (61) or mold lower part (62)
The part that portion (62) connects is equipped with the fusant input port (63) with melting pipeline (31) connection.Mould upstream (61) preferably includes
It is located at several exhaust outlets (64) on the top of mould upstream (61).Exhaust outlet (64) is nonactive occurring in foaming mould (60)
It is external that gas such as hydrogen (H2) etc. is rejected to foaming mould (60).Although not expressing in figure, the Freight Office (40) of foaming zone (A) has
The standby ability that above-mentioned gas can be disposed.
Fig. 3 is the schematic diagram of the 2nd fusing department (30a) in the manufacturing device (100) of the embodiment of the present invention two.2nd fusing department
It is other identical as the 1st fusing department (30) except the structure that (30a) is constituted in addition to carrier tracheae (35).
According to Fig. 3, the carrier tracheae (35) of the 2nd fusing department (30a) is one, is connected to melting pipeline (31) side.It carries
The end of body tracheae (35) is connected with carrier gas supply unit (34), the inner flow for having control vector gas of carrier tracheae (35) and pressure
Adjustment gate valve (36).2nd fusing department (30a) embodies simpler construction than the 1st fusing department (30).Only the 2nd fusing department
The precision of the flow adjustment of the carrier gas of (30a) may be with the 1st fusing department (30) slightly difference.
Fig. 4 is the schematic diagram of the 3rd fusing department (30b) in the manufacturing device (100) of the embodiment of the present invention three.In addition to carrier gas
The structure of bleed pipe (37) is other identical as the 2nd fusing department (30a).In order to illustrate more clearly of the 3rd fusing department (30b), add
Side view.
According to Fig. 4, the 3rd fusing department (30b) includes carrier gas supply unit (34), carrier tracheae (35) and the load of connection therewith
Body gas blowout outlet pipe (37).Carrier tracheae (35) includes the adjustment gate valve (36) for adjusting carrier gas flow and pressure.3rd fusing department
Exterior arrangement melting heating cloth (32) of the melting pipeline (31) of (30b) and carrier gas bleed pipe (37).Melting heating cloth (32)
Configuration is near screw rod (22), and carrier gas bleed pipe (37) configuration is in the direction close to Freight Office (40).That is, carrier gas sprays
Pipe (37) surrounds the outside of melting pipeline (31).Carrier tracheae (35) can be glued in one or more of carrier gas bleed pipe (37)
Patch connection, Fig. 4 is in case where being pasted at one.
The carrier gas of 3rd fusing department (30b) is sprayed by carrier gas bleed pipe (37), with the 1st fusing department (30) and the 2nd
Fusing department (30a) is variant.The specifically carrier gas of the 1st fusing department (30) and the 2nd fusing department (30a) is supplied directly to melting tube
Road (31), but the carrier gas of the 3rd fusing department (30b) is the surface direction supply by melting the fusant (M) of pipeline (31a).
3rd fusing department (30b) supplies carrier gas to the surface direction of fusant (M), and the flowing of fusant (M) is than the 1st fusing department
(30) and the 2nd fusing department (30a) is more stable.Within the scope of the present invention, the carrier gas includes molten in supply melting pipeline
Melt all carrier gas on the surface of object (M) or the fusant (M) by melting pipeline.
Fig. 5 is the foaming aluminum schematic diagram of internal structure that embodiment through the invention is manufactured using plasma spraying, in the past
Crucible method one and crucible method two manufacture foaming aluminum schematic diagram of internal structure be Fig. 6 and Fig. 7.The foaming agent being put into accounts for entirely
The weight percent of mixture is 1.3%, and foaming engineering temperature is 620 DEG C.In addition, the carrier that the embodiment of the present invention uses
Gas and refrigerant gas are argon (Ar).
According to Fig. 6 and Fig. 7, previous crucible method one and the case where crucible method two are that the variation of pore opening is big respectively,
Or the position Density Distribution of foaming metal is widely different.That is, crucible method is first is that big and small gas cell distribution is uneven, crucible
For method second is that according to the difference of position, gas cell distribution is different, and global density is unevenly distributed.On the contrary according to Fig.7, of the invention
Embodiment obtains foaming aluminum, and whole pore opening and Density Distribution are uniform.This is that foaming agent passes through mixing vessel (10), screw rod
(22) it after being uniformly kneaded, is evenly distributed in fusant (M), foams under foaming agent effect in foaming mould (60), so that
Density Distribution of the pore opening uniformly and on different location is uniform.
More than, although the present invention is described in detail with optimal case study on implementation, the present invention is not limited to above-mentioned implementation
Case has the personnel of the usual knowledge in this field that can deform a variety of situations in technical thought range of the invention.
Claims (10)
1. a kind of foaming metal manufacturing device using plasma spraying characterized by comprising
Mixing vessel, the mixing vessel generate the mixture of metal powder, blowing agent powder and thickener powder；
Funnelform hopper, the enlarged portion above the hopper receive the mixture of mixing vessel investment, below the enlarged portion
Narrow funnel pipe is connected, is connected to the bulge of melting pipeline one end；
Screw rod, the driving portion that one end connection drives its rotation to promote, the other end protrude into the bulge of melting pipeline one end, move
It send, be kneaded the mixture put into from funnel pipe；
Melting pipeline and the carrier tracheae connecting with the melting pipeline, the melting pipeline receive described mixed from the screw rod
The fusant formed after the metal powder in object melts is closed, the carrier tracheae provides meltallizing kinergety for the fusant；
Foaming mould and the conveyer belt for transporting foaming mould, the foaming mould be connected to the melting pipeline and in foaming agent and
It foams under the action of carrier gas to fusant, foaming mould is transported subsequent cooling zone and discharge by the conveyer belt
Area.
2. the foaming metal manufacturing device according to claim 1 using plasma spraying, which is characterized in that the mixing vessel
It is up and down and to roll or mechanical vibration, or to rock and shake combination movement.
3. the foaming metal manufacturing device according to claim 1 using plasma spraying, which is characterized in that the screw rod is
One axis or multiaxis screw rod.
4. the foaming metal manufacturing device according to claim 1 using plasma spraying, which is characterized in that the melting pipeline
It is encased with melting heating cloth, the melting heating cloth is heated in a manner of high-frequency induction.
5. the foaming metal manufacturing device according to claim 1 using plasma spraying, which is characterized in that the foaming mould
In the Freight Office comprising conveyer belt, the Freight Office is divided into foaming zone and cooling zone；In the foaming zone, non-active gas
Form positive pressure；The molten metal forms the first foaming metal after foaming in foaming mould, be transported to cooling by conveyer belt
Area；In cooling zone, by way of circularly cooling, the second foaming metal is formed after the first foaming metal is cooled down, then pass through fortune
Second foaming metal is transported to the discharge area outside Freight Office by defeated band.
6. the foaming metal manufacturing device according to claim 1 using plasma spraying, which is characterized in that the carrier tracheae
It is 2, is connected to the melting pipeline two sides；Wherein the end of a carrier tracheae connects carrier gas supply unit, in addition
The end connection of a piece carrier tracheae is adjustable the adjustment gate valve of the carrier gas flow and pressure；The one of the melting pipeline
Side and be additionally provided with temperature sensor at screw rod coupling part, the engineering temperature of fusant in measurement melting pipeline.
7. the foaming metal manufacturing device according to claim 1 using plasma spraying, which is characterized in that the carrier tracheae
It is 1, is connected to the melting pipeline side；The end of the carrier tracheae connects carrier gas supply unit, the carrier tracheae
On be additionally provided with the adjustment gate valve for being adjustable carrier gas flow and pressure；It is described melting pipeline side and with screw rod interconnecting piece
It is being additionally provided with temperature sensor respectively, the engineering temperature of fusant in measurement melting pipeline.
8. the foaming metal manufacturing device according to claim 7 using plasma spraying, which is characterized in that be additionally provided with carrier gas
Bleed pipe, the melting pipeline are encased by carrier gas bleed pipe, the carrier tracheae and carrier gas bleed pipe one or more
Connection.
9. the foaming metal manufacturing device according to claim 1 using plasma spraying, which is characterized in that the cooling zone,
Circularly cooling is carried out by the refrigerant supply unit outside Freight Office and the refrigeration gas that tracheae is supplied to that freezes；The refrigeration gas is
Non-active gas can prevent the oxidation of the first foaming metal.
10. the foaming metal manufacturing device according to claim 1 using plasma spraying, which is characterized in that the foaming mould
Tool includes mould upstream and mold lower part and the fusant input port with the melting pipeline connection；The mould upstream includes
Multiple exhaust outlets；The fusant input port is located at appointing in the mould upstream or the mold lower part or both contact portion
At meaning.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2018-0054041 | 2018-05-11 | ||
| KR1020180054041A KR102099632B1 (en) | 2018-05-11 | 2018-05-11 | Apparatus of manufacturing foamed metal by thermal spray |
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| CN109047766A true CN109047766A (en) | 2018-12-21 |
| CN109047766B CN109047766B (en) | 2021-03-16 |
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| CN201810729594.8A Active CN109047766B (en) | 2018-05-11 | 2018-07-05 | Foamed metal manufacturing device using meltallizing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109759592A (en) * | 2019-01-18 | 2019-05-17 | 清华大学 | Powder metallurgic method prepares the foaming machine and foamed system of foam metal |
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| KR20190129420A (en) | 2019-11-20 |
| KR102099632B1 (en) | 2020-04-13 |
| CN109047766B (en) | 2021-03-16 |
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