CN109759592A - Powder metallurgic method prepares the foaming machine and foamed system of foam metal - Google Patents

Powder metallurgic method prepares the foaming machine and foamed system of foam metal Download PDF

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Publication number
CN109759592A
CN109759592A CN201910049391.9A CN201910049391A CN109759592A CN 109759592 A CN109759592 A CN 109759592A CN 201910049391 A CN201910049391 A CN 201910049391A CN 109759592 A CN109759592 A CN 109759592A
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China
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foaming
plate
rib
foam metal
burner hearth
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CN201910049391.9A
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CN109759592B (en
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刘源
丁祥
万坦
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Tsinghua University
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Tsinghua University
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Abstract

The present invention provides the foaming machine that a kind of powder metallurgic method prepares foam metal, including foaming furnace and first conveyor structure;The side of foaming furnace has opening, has burner hearth inside foaming furnace, burner hearth is for accommodating foaming mould;First conveyor structure is set in burner hearth, is used to support and is guided the foaming mould in from the harness motion to the burner hearth.

Description

Powder metallurgic method prepares the foaming machine and foamed system of foam metal
Technical field
The present invention relates to foaming machine and foaming systems that foam metal field, especially powder metallurgic method prepare foam metal System.
Background technique
Aluminum alloy foam sandwich structure is a kind of porous structure functional material, has excellent physical property and mechanical property, Such as lightweight, energy-absorbing, damping, buffering, sound-proof sound-absorbing, heat-insulated, electromagnetic shielding;It can satisfy system loss of weight, structural bearing and function Many-sided performance requirement such as energy integration adapts to the fields such as the following aerospace, automobile manufacture, rail traffic to structure function material The requirement of material has wide exploitation and application prospect.
Currently, mainly preparing aluminum alloy foam sandwich structure by bonding/welding and powder metallurgic method, the two compares For, bonding/welding mainly passes through flux foaming and air blast, can produce relatively large sized foamed aluminium sandwich layer, later period Relatively large sized aluminum alloy foam sandwich structure is prepared by the bonding or welding with panel.But bonding/welding lacks Point, which is that aluminum alloy foam sandwich structural core layer/panel combination uniformity for preparing is poor, intensity is low, causes mechanical property relatively poor, And the high temperature resistant, corrosion resistance at interface cohesion are poor.Powder metallurgic method is current processability stabilization, excellent foamed aluminium The preferable method of sandwich structure, not only realizes the metallurgical bonding between sandwich layer/panel, and fundamentally solves bonding The high temperature resistant of product prepared by method, corrosion resistance difference and it is easy to aging the disadvantages of.
However, the aluminum alloy foam sandwich structure size of country's powder metallurgic method preparation is relatively little at present, it is exclusively used in big ruler The foaming machine of very little aluminum alloy foam sandwich structure, which has no, to be had been reported that;Also, it is sent out closest to large scale aluminum alloy foam sandwich structure The prior heat treatment furnace of bubble equipment generallys use the design of movable hearth box bottom, this requires heat insulation effect and thermo parameters method severe For the foaming machine at quarter, it cannot meet the requirements completely.Meanwhile when preparing large scale foam metal, the volume of foaming mould Larger, heavier-weight needs to consume very big manpower, and the residual temperature of the mold after foaming can cause certain danger to operator Danger, therefore, traditional foaming machine is not suitable for the preparation of large scale foam metal, needs to redesign manufacture and is used to prepare greatly The foaming machine of size bubbles metal.
Summary of the invention
Based on this, it is necessary to provide a kind of foaming machine and hair suitable for powder metallurgic method preparation large scale foam metal Bubble system.
The present invention provides the foaming machine that a kind of powder metallurgic method prepares foam metal,
Including foaming furnace and first conveyor structure;
The side of the foaming furnace has opening, has burner hearth inside the foaming furnace, the burner hearth is for accommodating foaming Mold;
The first conveyor structure is set in the burner hearth, is used to support and is guided the foaming mould from the opening It moves in the burner hearth.
It in one of the embodiments, further include transport device, the transport device is movably arranged at the foaming Outside furnace, the transport device includes second conveyor structure, and one end of the second conveyor structure can be with the first conveyor Structure is connected close to one end of the opening, is used to support and the foaming mould is guided to move to described open outside the foaming furnace Mouthful.
The second conveyor structure and the first conveyor structure be horizontally disposed in one of the embodiments, and height phase Deng making the foaming mould being capable of horizontal movement outside the foaming furnace and in the burner hearth.
At least one of the first conveyor structure and the second conveyor structure are to slide in one of the embodiments, Slot, guide rail or conveyer belt.
The foaming furnace further includes multiple heaters in one of the embodiments, and the multiple heater is set to institute Inboard wall of burner hearth is stated, and the multiple heater is spatially symmetric.
The foaming furnace further includes the temperature-control heat couple being arranged in the burner hearth and thermometric in one of the embodiments, Thermocouple, close to the heater, the tail end of the temperature-control heat couple is electrically connected in gauge outfit, described on the temperature-control heat couple top Gauge outfit and the temperature-control heat couple pass through program co- controlling fire box temperature and the temperature of the monitoring heater, the thermometric heat Galvanic couple be it is multiple, be distributed in the side of the temperature-control heat couple, for detect inside the burner hearth different location temperature and its with The temperature difference of the heater.
The foaming furnace further includes fire door in one of the embodiments, and the fire door is located at the outside of the opening, institute Stating fire door can in the horizontal direction or vertical direction is moved to and blocks the opening completely.
In one of the embodiments, include any one of the above foaming machine and foaming mould,
The foaming mould includes top cover and pedestal,
The top cover is spill, with horizontally disposed first plate, the first side wall being vertically arranged, protrudes from the first side The limiting section of wall outer surface and the first rib for protruding from first plate upper surface;
The edge of first plate is connect with the lower edge of the first side wall;
The pedestal includes horizontally disposed second plate, the second sidewall being vertically arranged and protrudes from second plate Second rib of lower surface;
The lower edge of the second sidewall is connect with second plate, and the second sidewall is at least partially surrounding described Simultaneously cavity is collectively formed with second plate in second plate;
The first side wall and first plate can be placed in the cavity, the first side wall and described second Side wall contact, and the top edge of the second sidewall is contacted with the limiting section, and the top cover is collectively formed with the pedestal Foam chamber.
In one of the embodiments, first rib perpendicular to the first plate and/or second rib perpendicular to Second plate.
At least one of first rib and second rib are set as multiple in one of the embodiments,;
The multiple first rib be parallel to each other or the multiple first rib at least two intersect;
The multiple second rib be parallel to each other or the multiple second rib at least two intersect.
First rib is uniformly distributed or second muscle on first plate in one of the embodiments, Item is uniformly distributed on second plate or first rib and second rib are respectively in first plate and institute It states and is uniformly distributed on the second plate.
In one of the embodiments, the foaming mould bottom have multiple idler wheels, the idler wheel can slidably with The first conveyor structure is contacted and is moved in the burner hearth.
The foaming mould further includes hangers in one of the embodiments, and the hangers is fixed on the foaming mould The pedestal the second sidewall outer surface and the top cover first plate upper surface.
First conveyor structure is arranged in foaming machine described in the embodiment of the present invention in the burner hearth of foaming furnace, so that foaming mould Burner hearth can easily be entered or be taken out from burner hearth, the preparation suitable for large scale foam metal.
Detailed description of the invention
Fig. 1 is the main view that the powder metallurgic method of the embodiment of the present invention prepares the foaming machine of foam metal;
Fig. 2 is the right view that the powder metallurgic method of the embodiment of the present invention prepares the foaming machine of foam metal;
Fig. 3 is the main view that the powder metallurgic method of the embodiment of the present invention prepares the foamed system of foam metal;
Fig. 4 is the right view that the powder metallurgic method of another embodiment of the present invention prepares the foamed system of foam metal;
Fig. 5 is that the foaming mould for the foamed system that powder metallurgic method provided in an embodiment of the present invention prepares foam metal decomposes The schematic front view of state;
Fig. 6 is the foaming mould combination for the foamed system that powder metallurgic method provided in an embodiment of the present invention prepares foam metal The schematic front view of state;
Fig. 7 is the foaming mould combination for the foamed system that powder metallurgic method provided in an embodiment of the present invention prepares foam metal The schematic side view of state.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, by the following examples, it and combines attached Figure, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only to explain this hair It is bright, it is not intended to limit the present invention.
Refering to fig. 1 with Fig. 2, the embodiment of the present invention provides the foaming machine that a kind of powder metallurgic method prepares foam metal, packet Include foaming furnace 60 and first conveyor structure 610.The side of foaming furnace 60 has opening 620, has burner hearth inside foaming furnace 60 630, burner hearth 630 is for accommodating foaming mould.First conveyor structure 610 is set in burner hearth 630, is used to support and is guided described Foaming mould moves in the burner hearth from the opening 620.
Foaming machine described in the embodiment of the present invention, by the way that first conveyor structure 610 is arranged in burner hearth 630, so that foaming Mold can easily enter burner hearth 630 or take out from burner hearth 630, suitable for the preparation of large scale foam metal, such as spy Not Shi Yongyu size be greater than or equal to 30cm × 30cm and be less than or equal to 60cm × 60cm foaming mould and size it is corresponding Foam metal.
Optionally, the foaming furnace 60 of the foaming machine further includes fire door 601, and the fire door 601 is located at the opening 620 Outside, the fire door 601 can in the horizontal direction or vertical direction be moved to block completely it is described opening 620.For example, as schemed Shown in 2, the fire door 601 is set to the top of the opening 620, can move vertically downwards, to open close to described Mouthfuls 620 to blocking the opening 620 completely.For another example the fire door 601 also can be set in horizontal high with the opening 620 Equal position is spent, and is located at the left side (or right side) of the opening, and can slide into the right (or to the left) and block completely The opening 620.
First conveyor structure 610 may be provided at the lower wall of burner hearth 630.The transporting direction of first conveyor structure 610, such as Length direction can extend to the most inboard of the burner hearth 630 from the opening 620.
Foaming machine may also include transport device 70.Transport device 70 is movably arranged at outside the foaming furnace 60.Fortune Defeated device 70 includes second conveyor structure 710, and one end of second conveyor structure 710 can be leaned on the first conveyor structure 610 One end linking of the nearly opening 620, is used to support and to guide the foaming mould to move to outside the foaming furnace 60 described Opening 620.The foaming mould as used in the technique for using powder metallurgic method preparation large scale foam metal usually has very Big volume and be metal material, the heavier-weight of foaming mould, transport device 70 can make foaming mould in foaming furnace 60 Outside is easier to transport.
Second conveyor structure 710 is connected with the first conveyor structure 610, can make foaming mould directly from transport device 70 slide into the burner hearth 630 of foaming furnace 60.Second conveyor structure 710 may be provided at the top of transport device 70.Second transport The transporting direction of mechanism 710, such as length direction can extend to the other end from one end of transport device 70.It is preferred real one It applies in example, second conveyor structure 710 and first conveyor structure 610 are horizontally disposed and highly equal, are sending out the foaming mould And it being capable of horizontal movement in burner hearth 630 outside bubble furnace 60.Optionally, in first conveyor structure 610 and second conveyor structure 710 extremely It is few a kind of for sliding slot, guide rail or conveyer belt.
Preferably, the bottom of transport device 70 can install idler wheel, correspondingly, the ground of the operation room in production foam metal Face can be laid with sliding slot or guide rail, make the more flexible simplicity of movement of the foaming mould 10 in operation room.
In one embodiment, foaming furnace 60 further includes multiple heaters 660, and heater 660 is set in the burner hearth 630 Wall, and multiple heaters 660 are spatially symmetric.For example, the side wall in the left and right sides of 630 inner wall of burner hearth is each uniformly One or more heaters 660 are set;Or respectively equably setting is one or more for the side wall in the two sides up and down of 630 inner wall of burner hearth Heater 660;Or one or more heaters 660 are respectively equably set in four side walls up and down of 630 inner wall of burner hearth.When For heater 660 when being set as one on each side wall, this heater 660 can be located at the center of corresponding side wall.When For heater 660 when being set as multiple on each side wall, the heater 660 of the heater 660 on each side wall can be with mutual Parallel or array distribution form is evenly arranged on each corresponding side wall.Multiple heaters 660 are evenly arranged in On each side wall of 630 inner wall of burner hearth, is conducive to the foaming presoma in foaming mould and is heated evenly simultaneously even foaming, form bubble The uniform foam metal in hole, to improve the mechanical property of foam metal.Preferably, the inner wall of the burner hearth 630 is by thermal insulation material It constitutes.
In one embodiment, foaming furnace 60 further includes multiple thermocouples, and the thermocouple includes 640 He of temperature-control heat couple Temperature thermocouple 650, temperature-control heat couple 640 and temperature thermocouple 650 are arranged in burner hearth 630, and temperature-control heat couple 640 is arranged In 630 top of burner hearth and close to heater 660, the tail end of the temperature-control heat couple 640 passes through electric wire and gauge outfit (not shown) electricity Connection, the gauge outfit and the temperature-control heat couple 640 pass through 630 temperature of program co- controlling burner hearth and the monitoring heater 660 temperature.Temperature thermocouple 650 is set as multiple, and is distributed in the side of the temperature-control heat couple 640, for detecting furnace The real time temperature of 630 inside different location of thorax.For example, temperature-control heat couple 640 can be set in the center of 630 upper side wall of burner hearth, Temperature thermocouple 650 is set to 630 upper side wall of burner hearth, and is uniformly distributed around temperature-control heat couple 640, optionally, each survey It is equal with the distance between temperature-control heat couple 640 to warm galvanic couple 650.Use temperature-control heat couple 640 and the thermometric heat being distributed in this way Galvanic couple 650 can equably measure the difference between the temperature of each region in burner hearth 630 and the temperature of heater 60, make The temperature obtained in foaming furnace 60 can be accurately controlled, so that the temperature in foaming furnace 60 everywhere is consistent, to guarantee to produce Foam metal abscess homogeneity, to guarantee the mechanical property of foam metal product.
Preferably, the inner wall of the burner hearth 630 is made of thermal insulation material.
In one embodiment, foaming machine further includes control cabinet 80, the heater 660 of control cabinet 80 and foaming furnace 60 and Thermocouple electrical connection, for controlling the operation of foaming furnace 60.Specifically, the hair that control cabinet 80 is measured according to temperature-control heat couple 640 The actual temperature at other positions of the burner hearth 630 that the temperature of hot body 660 is measured with temperature thermocouple 650 is compared, thus logical It crosses intelligent program 660 temperature of heater in foaming furnace 60 is adjusted, so that each area in the burner hearth of foaming furnace 60 The temperature in domain is consistent, to guarantee the uniformity of the blowing temperature of each region of large-sized foaming mould, to guarantee foam The stability of the abscess of metal each region, to promote the mechanical property of foam metal.
Refering to Fig. 3 and Fig. 4, the present invention also provides a kind of foamed system for being used to prepare large scale foam metal, including it is preceding State any one foaming machine and foaming mould 10.Refering to Fig. 5 to Fig. 7, foaming mould 10 includes top cover 100 and pedestal 200.
The top cover 100 is spill, with horizontally disposed first plate 110, the first side wall 120, convex being vertically arranged Limiting section 130 for 120 outer surface of the first side wall and the first rib 140 for protruding from 110 upper surface of the first plate. The edge of first plate 110 is connect with the lower edge of the first side wall 120.
The pedestal 200 includes horizontally disposed second plate 210, the second sidewall 220 being vertically arranged and protrudes from institute State the second rib 240 of 210 lower surface of the second plate.The lower edge of the second sidewall 220 and second plate 210 connect It connects, and sky is collectively formed at least partially surrounding second plate 210 and with second plate 210 in the second sidewall 220 Chamber 230.
The first side wall 120 and first plate 110 can be placed in the cavity 230, the first side wall 120 contact with the second sidewall 220, and the top edge of the second sidewall 220 is abutted with the limiting section 130, make described Foam chamber 300 is collectively formed in top cover 100 and the pedestal 200.
When using large scale foaming mould 10, if increasing the thickness of the first plate 110 and the second plate, it is easy to cause Heat is difficult to quickly reach foam chamber, and the foaming mould 10 that powder metallurgic method of the present invention prepares foam metal passes through on the top of spill The recessed portion setting of lid protrudes from the rib of the upper surface of the first plate 110 of top cover, and the pedestal being used cooperatively with top cover 200 settings protrude from the rib of 210 lower surface of the second plate, so that preparing large scale foam metal by powder metallurgic method When, the thickness without increasing the first plate 110 and the second plate 210 can effectively inhibit the first plate 110 in use process With the thermal deformation of the second plate 210, heat is set to run through the first plate 110 and the second plate 210 arrival foam chamber, to make Foam metal has preferable abscess homogeneity, improves the mechanical property of foam metal.Simultaneously also efficiently avoid due to During heating and cooling shape occurs for foaming mould 10 caused by the thickness of the first plate 110 and the second plate 210 reduces Become, and then ensure that the dimensional stability for the foam metal produced.
Preferably, first rib 140 is perpendicular to the first plate 110 and/or second rib 240 perpendicular to institute The second plate 210 is stated, with the thermal deformation of the first plate 110 of more efficient inhibition and/or the second plate 210, and keeps heat quick And it equably conducts to the first plate 110 and/or the second plate 210.
Preferably, the first rib 140 is uniformly distributed in the upper surface of the first plate 110, can not only make foaming mould 10 With uniform heat-conductive characteristic, moreover it is possible to inhibit the thermal change of the first plate 110 while not increasing by the first 110 thickness of plate Shape.For the same purpose, the second rib 240 is preferably also uniformly distributed in 210 lower surface of the second plate.It is highly preferred that the One rib 140 and the second rib 240 are uniformly distributed on the first plate 110 and the second plate 210 respectively.First rib, 140 He The quantity of second rib 240 may respectively be one or more.By taking the first rib 140 as an example, when the first rib 140 is set as one When, first rib 140 can be set in the middle of the first plate 110, by the first plate 110 be bisected into two it is equal Region;When the first rib 140 is set as multiple, the multiple first rib 140 can be arranged in parallel and at equal intervals, Huo Zhesuo At least two stated in multiple first ribs 140 intersect, for example, with the shape of Chinese character " well " or Chinese character " rice " intersection.It is more A first rib 140 can be divided into multiple groups, and the first rib 140 between each group intersects setting, the first rib 140 in every group It is parallel to each other and is arranged at equal intervals.Second rib 240 can mode identical with the first rib 140 second plate 210 is set On, it repeats no more.
The area of first plate 110 and the second plate 210 can be determined according to the actual production demand of foam metal.? Traditional foam metallurgy method is prepared in the method for large-sized foam metal, and traditional foaming mould 10 is easy in high temperature foaming Apparent deformation occurs in the process and during the demoulding of foam metal product is cooling, leads to the ruler of foam metal product Very little stability is poor, and the service life of foaming mould 10 can also shorten.Foaming mould 10 in the embodiment of the present invention passes through first The setting of rib 140 and the second rib 240 can not increase by 210 thickness of the first plate 110 and the second plate to avoid the above problem The first plate 110 and the second plate 210 for making large area while spending also have preferable dimensional stability.For example, of the invention In foaming mould 10 be particularly suitable for preparing area more than or equal to 300mm × 300mm, preferably lower than or equal to 600mm × The foam metal of 600mm.Optionally, the area of the first plate 110 and the second plate 210 be greater than or equal to respectively 300mm × 300mm, and preferably lower than or equal to 600mm × 600mm, the area of the foam chamber 300 of foaming mould 10 in the horizontal direction are big In or equal to 300mm × 300mm and preferably lower than or equal to 600mm × 600mm.
For the first plate 110 area respectively in 300mm × 300mm to the embodiment between 600mm × 600mm, can Selection of land, the first rib 140 are set as multiple, and multiple first ribs 140 can be parallel to each other on the first plate 110.When multiple When first rib 140 is parallel to each other, the mutual spacing of the multiple first rib 140 is preferably 80mm to 100mm, multiple The width of any of first rib 140 is preferably 6mm to 10mm, it is preferable that between multiple first ribs 140 are mutual Away from equal.Multiple second ribs 240 can mode identical with the first rib 140 be arranged on the second plate 210, it is no longer superfluous It states.The width of first rib 140 or the second rib 240 refers to the bottom surface that it connect with the first plate 110 or the second plate 210 Width.Optionally, the longitudinal cross-section of the first rib 140 or the second rib 240 can be the shapes such as triangle, semicircle or rectangle Shape.
The quantity of first rib 140 and the second rib 240 is respectively preferably 4 to 6.By taking the first rib 140 as an example, first Rib 140 can be parallel to each other and be arranged at equal intervals.In another embodiment, 1 first can be distributed on the first plate 110 First rib 140 in direction and the first rib 140 of 3 to 5 second directions vertical with the first rib 140 of first direction; In another embodiment, can be distributed on the first plate 110 first direction that 2 are parallel to each other the first rib 140 and with First rib 140 of 2 to 4 vertical second directions of the first rib 140 of first direction;In another embodiment, 4 to 6 The direction of first rib 140 is different, and forms a common crosspoint, it is preferable that crosspoint is located at each first rib 140 midpoint.Multiple second ribs 240 can mode identical with the first rib 140 be arranged on the second plate 210, no It repeats again.Preferably, distribution form and second rib 240 of first rib 140 on the first plate 110 are in the second plate 210 On distribution form it is corresponding.
Optionally, limiting section 130 can be flanging, convex block, convex hook etc., and the top cover 100 can be made steadily to be placed on institute Pedestal 200 is stated, and the first plate 110 is spaced a predetermined distance with the second plate 210.In the assembled state of foaming mould 10, first Side wall 120 can with second sidewall 220 against, it is preferable that the top cover 100 was formed in the horizontal direction with the pedestal 200 It is full of cooperation, so that foaming presoma will not splash out during foaming from the top of foaming mould 10.
Interval between first plate 110 and the second plate 210 can be carried out according to the needs of production of foam metal Selection.In one embodiment, the top edge of the first side wall 120 is arranged in limiting section 130, then can pass through the first of different height Side wall 120, i.e., the top cover 100 of different cup depths, prepares the foam metal of different-thickness size.
The cooperation of the shape of the first side wall 120 and second sidewall 220, can be respectively curved surface or plane.When the first plate 110 When the shapes such as being round or oval respectively with the second plate 210, the first side wall 120 and second sidewall 220 can be respectively to cut Face is the cylinder of arc;When the first plate 110 and the second plate 210 are respectively rectangle or other polygons, the first side wall 120 Multiple planar sub- side walls interconnected can be respectively included with second sidewall 220.
Preferably, at least one end of 140 length direction of the first rib is contacted with the inner surface of the first side wall 120, more preferably The both ends on ground, 140 length direction of the first rib are contacted with the first side wall 120, for example, when the first plate 110 is rectangle, the The both ends of one rib 140 can be opposite with the first side wall 120 two sub- side walls contact.It is also preferable that the second rib 240 At least one end of length direction is contacted with the inner surface of second sidewall 220, it is highly preferred that the two of 240 length direction of the second rib End is contacted with the inner surface of second sidewall 220.
Optionally, when 220 part of second sidewall surrounds the second plate 210, pedestal 200 further includes liquid barrier 500, keeps off liquid First side of plate 500 is not connect by the edge that second sidewall 220 surrounds with the second plate 210, liquid barrier 500 with the first side phase Pair the second side be higher than the second plate 210 in the horizontal direction, in order to which the presoma that foams is put into foam chamber 300, and sending out Foam chamber 300 is not flowed out during bubble, while not influencing the demoulding of the foam metal after foaming.Preferably, liquid barrier 500 with The angle of horizontal direction is between 15 ° to 30 °, and the length of liquid barrier 500 can be selected according to actual needs, works as liquid barrier 500 it is smaller with the angle of horizontal direction when, the longer liquid barrier 500 of length can be used, when liquid barrier 500 and horizontal direction When angle is larger, the shorter liquid barrier 500 of length can be used.In one embodiment, the first plate 110 and the second plate 210 For the rectangular slab of dimensional fits, second sidewall 220 includes three sub- side walls, is connect respectively with three sides of the second plate 210, from Three directions surround the second plate 210, and the first of liquid barrier 500 connect while with the 4th of the second plate 210 the.
Optionally, foaming mould 10 further includes chassis 400, the lower surface company of the upper end of chassis 400 and the second plate 210 It connects, is used to support pedestal 200.Chassis 400 can be individual structure, can also be integrally formed with pedestal 200, pedestal 200 The environment in the temperature field that height can be in foaming process according to foaming mould 10 is adjusted, for example, by adjusting bottom The height of seat 200 makes foaming mould 10 be located at 630 center of burner hearth of foaming furnace 60 in foaming process, makes foaming mould 10 300 thermally equivalent of foam chamber, to further increase the homogeneity of the inner cell of foam metal.Preferably, the chassis 400 Height is greater than the height of the second rib 240, that is, guarantees that the second rib 240 is not directly contacted with foaming furnace 60.
Optionally, 10 bottom of foaming mould have multiple idler wheels, the idler wheel can slidably with the first conveyor Structure 610 is contacted and is moved in the burner hearth 630.To reduce the friction between foaming mould 10 and first conveyor structure 610.It can Selection of land, foaming mould 10 further include hangers (not shown), and hangers is fixed on the outer surface of the foaming mould 10.Preferably, it hangs Ear is set as multiple, is distributed in the outer surface of the second sidewall 220 of the pedestal 200 of foaming mould 10, is used for foaming mould 10 When being taken out from burner hearth 630, foaming mould 10 is caught on external device and is hauled out outward, operator is avoided directly to touch foaming mould 10 bring security risks.The hangers can also be distributed in the upper surface of the first plate 110 of top cover 100, facilitate external device Tool catches on the top cover of foaming mould 10, convenient for the demoulding of foam metal product.
The present invention also provides a kind of application methods of above-mentioned foaming machine, comprising the following steps: the second sidewall 220 with The cavity 230 that second plate 210 is formed, top cover 100 is placed in the cavity 230, foam chamber is collectively formed with pedestal 300, then foaming mould 10 is transported by transport device 70 to the corresponding opening of fire door 601 of foaming furnace 60, and make the One transport establishment 610 and second conveyor structure 710 dock, and are further pushed into foaming mould 10 along first conveyor structure 610 In the burner hearth 630 of foaming furnace 60 and fire door 601 is closed, heats foaming mould 10 in foaming furnace 60, is reached with furnace heating To blowing temperature and after keeping the temperature a period of time, fire door 601 is opened, the metal precursor to be foamed containing foaming agent is passed through into hair The opening for steeping 500 end of liquid barrier of mold 10 promotes foam chamber 300 to foam;Foaming mould 10 is taken out in completion to be foamed, Demould foam metal after cooling.Metal precursor containing foaming agent can be metal powder is mixed with foaming agent after It is encapsulated in after metal case by rolling green body.Metal powder for example can be metallic aluminium powder or Al alloy powder.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (13)

1. the foaming machine that a kind of powder metallurgic method prepares foam metal, which is characterized in that including foaming furnace and first conveyor Structure;
The side of the foaming furnace has opening, has burner hearth inside the foaming furnace, the burner hearth is for accommodating foaming mould;
The first conveyor structure is set in the burner hearth, is used to support and is guided the foaming mould from the harness motion In to the burner hearth.
2. the foaming machine that powder metallurgic method according to claim 1 prepares foam metal, which is characterized in that further include fortune Defeated device, the transport device are movably arranged at outside the foaming furnace, and the transport device includes second conveyor structure, institute The one end for stating second conveyor structure can be connected with the first conveyor structure close to one end of the opening, be used to support and draw It leads the foaming mould and moves to the opening outside the foaming furnace.
3. the foaming machine that powder metallurgic method according to claim 2 prepares foam metal, which is characterized in that described second Transport establishment and the first conveyor structure are horizontally disposed and highly equal, make the foaming mould outside the foaming furnace and institute Stating being capable of horizontal movement in burner hearth.
4. the foaming machine that powder metallurgic method according to claim 2 prepares foam metal, which is characterized in that described first At least one of transport establishment and the second conveyor structure are sliding slot, guide rail or conveyer belt.
5. the foaming machine that powder metallurgic method according to claim 1 prepares foam metal, which is characterized in that the foaming Furnace further includes multiple heaters, and the multiple heater is set to the inboard wall of burner hearth, and the multiple heater is spatially It is symmetric.
6. the foaming machine that powder metallurgic method according to claim 5 prepares foam metal, which is characterized in that the foaming Furnace further includes the temperature-control heat couple being arranged in the burner hearth and temperature thermocouple, and the temperature-control heat couple top is close to the hair The tail end of hot body, the temperature-control heat couple is electrically connected with gauge outfit, and the gauge outfit and the temperature-control heat couple are controlled jointly by program The temperature of fire box temperature processed and the monitoring heater, the temperature thermocouple be it is multiple, be distributed in the temperature-control heat couple Side, the temperature difference for detecting the burner hearth inside different location temperature and its with the heater.
7. the foaming machine that powder metallurgic method according to claim 1 prepares foam metal, which is characterized in that the foaming Furnace further includes fire door, and the fire door is located at the outside of the opening, and the fire door can in the horizontal direction or vertical direction translates To blocking the opening completely.
8. the foamed system that a kind of powder metallurgic method prepares foam metal, which is characterized in that including according to claim 1 in 7 Described in any item foaming machines and foaming mould,
The foaming mould includes top cover and pedestal,
The top cover is spill, with horizontally disposed first plate, the first side wall being vertically arranged, is protruded from outside the first side wall The limiting section on surface and the first rib for protruding from first plate upper surface;
The edge of first plate is connect with the lower edge of the first side wall;
The pedestal includes horizontally disposed second plate, the second sidewall being vertically arranged and protrudes from the second plate following table Second rib in face;
The lower edge of the second sidewall is connect with second plate, and the second sidewall is at least partially surrounding described second Simultaneously cavity is collectively formed with second plate in plate;
The first side wall and first plate can be placed in the cavity, the first side wall and the second sidewall Contact, and the top edge of the second sidewall is contacted with the limiting section, makes the top cover and the pedestal that foaming be collectively formed Chamber.
9. the foamed system that powder metallurgic method according to claim 8 prepares foam metal, which is characterized in that described first Rib is perpendicular to the first plate and/or second rib perpendicular to second plate.
10. the foamed system that powder metallurgic method according to claim 8 prepares foam metal, which is characterized in that described At least one of one rib and second rib are set as multiple;
The multiple first rib be parallel to each other or the multiple first rib at least two intersect;
The multiple second rib be parallel to each other or the multiple second rib at least two intersect.
11. the foamed system that powder metallurgic method according to claim 8 prepares foam metal, which is characterized in that described One rib is uniformly distributed on first plate or second rib is uniformly distributed on second plate or described First rib and second rib are uniformly distributed on first plate and second plate respectively.
12. the foamed system that powder metallurgic method according to claim 8 prepares foam metal, which is characterized in that the hair Steeping mold bottom has multiple idler wheels, and the idler wheel can be contacted slidably with the first conveyor structure and move to the furnace In thorax.
13. the foamed system that powder metallurgic method according to claim 8 prepares foam metal, which is characterized in that the hair Steep mold further include hangers, the hangers be fixed on the second sidewall of the pedestal of the foaming mould outer surface and The upper surface of first plate of the top cover.
CN201910049391.9A 2019-01-18 2019-01-18 Foaming equipment and foaming system for preparing foam metal by powder metallurgy method Expired - Fee Related CN109759592B (en)

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