CN103495732A - Pressing head and device for achieving densification of spray deposition porous panel and application thereof - Google Patents

Pressing head and device for achieving densification of spray deposition porous panel and application thereof Download PDF

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CN103495732A
CN103495732A CN201310462084.6A CN201310462084A CN103495732A CN 103495732 A CN103495732 A CN 103495732A CN 201310462084 A CN201310462084 A CN 201310462084A CN 103495732 A CN103495732 A CN 103495732A
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pressure head
pressurize district
nip
pressurize
district
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CN103495732B (en
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贺毅强
陈志钢
冯立超
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Huaihai Institute of Techology
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Huaihai Institute of Techology
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Abstract

The invention discloses a pressing head and device for achieving densification of a spray deposition porous panel and application of the pressing head and the device. An installation end face and a working end are arranged on the pressing head, and a first pressure keeping area, a main pressing area, a prepressing area and a second pressure keeping area are arranged at the working end in the advancing direction of the pressing head. The main pressing area is a horizontal plane, the prepressing area is a slope and inclines from the main pressing area to the installation end face, and the two pressure keeping areas are used for preventing materials from flowing when densification is achieved. The four areas where smooth transition exists are arranged on the pressing head, continuous deformation of the materials is achieved in the densification process, and no fracture can be produced. Meanwhile, the invention discloses the device which is used for achieving densification and provided with the pressing head. When the panel is machined through the device, the pressing face of the main pressing area horizontally acts on a panel blank, and the pass reduction of the pressing head is larger than the inclination height of the prepressing area of the pressing head relative to the main pressing area of the pressing head. Uniformity of the microscopic structure of the panel blank can be kept in the densification process.

Description

Jet deposition porous sheet material is densified with pressure head, device and application
Technical field
The invention belongs to the densified processing technique field of metal material, be specifically related to the densified use of a kind of jet deposition porous sheet material pressure head, device and application.
Background technology
With material formings such as casting, powder metallurgy, with the preparation method, compare, jet deposition not only has the advantage of the one step forming of casting, and the advantage that the rapid solidification cooldown rate is high is also arranged, and is a kind of the metal forming technology between casting and powder metallurgy.Though spray deposition technology has advantages of that cooldown rate is high, cost is suitable, applied widely, but the relative density of jet deposition state blank is generally 85%~90%, there are a large amount of micropores in blank, all do not reach metallurgical binding completely between particle, between bed boundary, can cause material mechanical performance to descend, particularly mechanical behavior under high temperature declines to a great extent because hole exists; Also can cause the sharply decline of crystallized ability, the jet deposition blank does not almost have moulding.Therefore must improve its mechanical property and forming property by follow-up densification technique.
CN1873043 discloses densifying processing method and the device of large jet deposited, and this scheme is application and ingot blank, compact, ring base and slab mainly.Disclosed method is the wedge shaped pressure head that adopts a facet and tapered plane smooth transition composition or inclined-plane to form, adopt common press to impose certain pressure, the jetting deposited square shaped blank in large size densified to wish in mould carries out local small deformation, facet is partly main deformed area, inclined-plane is the predeformation district, progressively to bevel direction, advance, successively suppress, mould has adopted the mode of combination die, between the passage of compressing into, progressively withdraw from wedge and press the module of stepping front end, discharge a part of space, blank is pushed ahead under the effect of the transverse component on wedge pressure pressure head inclined-plane, realize horizontal shear deformation, densified and the dual distortion of horizontal Shear Flow of comprehensive compacting downwards, finally realize the metallurgical binding under the densified and shear action of the integral body of jet deposition blank.Disclosed device comprises press pressure head and press bed, square assembling die is installed on press bed, be provided with movable composite module in square assembling die, be provided with the step-by-step movement propulsion plant on press pressure head top, be provided with slide plate on the step-by-step movement propulsion plant, be provided with wedge shaped pressure head on slide plate, be provided with the stopping means corresponding with the press pressure head on press bed.Described wedge shaped pressure head end face sub-fraction is that the plane remainder is inclined-plane, and planar section and chamfered portion adopt low-angle excessive.Described square assembling die is provided with the electric heating heater.
For jet deposition porous slab, the disclosed method of CN1873043 or the shear flow of device while push by blank, hole is elongated, dispersion and even seam, plastic deformation ability and the mechanical property of raising material; Specifically by wedge shaped pressure head, progressively accumulate small deformation and realize whole densification.The problem of its existence is:
(1) be subject to the restriction of equipment tonnage and the strength of materials, the aluminium alloy that the sheet material of large extrusion ratio and elevated temperature strength are high and composite thereof are difficult to be shaped, and the shaping processing cost is high;
(2) existing shaped as frame restriction shaping and haydite rolling owing to being subject to the equipment size impact, are difficult to the slab that forming dimension is large when shaped sheet;
(3) owing to being subject to the poor impact of deposit preform forming property, and common wedge pressure is made as two and is shaped to compression, therefore cracking easily appears in jet deposition aluminium alloy and composite slab thereof in pressing process, and pressure head is more obvious at the impression of compacting steel slab surface, and fine and close forming effect is poor.
Summary of the invention
The problem existed for prior art, one of purpose of the present invention is to provide a kind of densified pressure head of using of jet deposition metal slabs.
For this reason, the densified of jet deposition metal slabs provided by the invention is provided with end face and working end is installed with pressure head, described working end is provided with the first pressurize district, main nip, precompressed zone and the second pressurize district, and is followed successively by the first pressurize district, main nip, precompressed zone and the second pressurize district along the pressure head step direction; Described main nip is horizontal plane, described precompressed zone be inclined-plane and autonomous nip to the installation end face tilt, between described main nip and precompressed zone, be smooth transition; The material that the acting as of described the first pressurize district prevents master's nip when densified flows to the rightabout of pressure head step direction; The acting as of described the second pressurize district prevents that the material of master's nip and precompressed zone flows to the pressure head step direction when densified.
Described the first pressurize district be inclined-plane and autonomous nip to the installation end face tilt, between described the first pressurize district and pressure head sidewall, be smooth transition, between described the first pressurize district and zone of positive pressure, be smooth transition; Described the second pressurize district is horizontal plane, between described the second pressurize district and pressure head sidewall, is smooth transition, between described the second pressurize district and precompressed zone, is smooth transition.
The roughness of described main nip is less than the roughness in the first pressurize district and the second pressurize district, and the roughness of described precompressed zone is less than the roughness in the first pressurize district and the second pressurize district.
Compared with prior art, the densified advantage with pressure head of jet deposition metal slabs of the present invention is:
(1) there are two pressurize districts that surface roughness is higher in pressure head of the present invention at two ends, flowing by sheet material under the inhibition pressurize district, pressurize district of pressure head in pressing process, thereby make the slab under main nip and precompressed zone is the quasi-iso static pressing state in the three-dimensional compressive stress state in compaction process, thereby the phenomenon of cracking appears in the slab that can avoid conventional compacting distortion often to cause in pressing process.
(2) there are four continuous zones in pressure head of the present invention, uses the fillet smooth transition between each zone, and therefore in compaction process, its distortion continuously, can not cause unexpected large deformation or stress to concentrate and crack.
(3) the employing round-corner transition of adjacent nip, be conducive to prevent that steel slab surface from, due to the inhomogeneous outlet crackle of distortion, also can reduce in pressing process to occur the impression of pressure head simultaneously.Rigidity by dense material is lower, and mobile performance is better, and the knuckle between adjacent nip can suitably reduce.
(4) pressure surface of main nip and precompressed zone adopts less surface roughness, is conducive to flowing of blank surface in pressing process, produces better densified effect; It is for suppressing pressing process slab flowing along its length, make the blank in these two zones produce quasi-iso static pressing effect preferably, preventing that blank from ftractureing in pressing process that two pressurize districts adopt higher surface roughness.
(5) inclination angle, pressurize district is less, and the pressurize district suppresses the blank effect enhancing mobile along slab length, but can reduce the pressure of main nip, is unfavorable for the densified distortion of main nip blank.Rigidity by dense material is lower, and mobile performance is better, and inclination angle can reduce.
Another object of the present invention is to provide a kind of jet deposition porous sheet material densification device, this device comprises pressure head, base plate, punching block, electric calorifie installation and stopping means, and described pressure head is above-mentioned pressure head.
Be provided with the aluminium backing plate in described punching block.
Compared with prior art, the advantage of jet deposition porous sheet material densification device of the present invention is:
In the densification device of jet deposition metal slabs provided by the invention, compacting pressure head both sides have the pressurize zone, the pressurize district adopts higher surface roughness to suppress to be positioned at flowing of blank under the pressurize district, in pressing process, can effectively make the blank under pressure head master nip and precompressed zone produce three-dimensional compressive stress, improve the plastic deformation ability of blank, suppress the generation of blank crackle in pressing process.And, pressure head master nip and precompressed zone pressure surface adopt smooth finish surface, and adopt round-corner transition between main nip and precompressed zone, can reduce the resistance of pressing process surface to the blank Plastic Flow, strengthen the plastic deformation of blank under main nip and precompressed zone, the hole that shearing and Plastic Flow by blank makes the porous blank is broken and make up, realizes fine and close.In addition, device of the present invention can be realized the integral body densification of big size porous slab under the press device of low tonnage, and good by the sheet material compactness after the quasi-iso static pressing densification, relative density reaches more than 99%.
The first pressurize district and the acting in conjunction of the second pressurize district suppress material in densification process and flow along the slab length direction, aluminium backing plate by the slab termination imposes on the compression on the slab length direction simultaneously, and compression and punching block that in pressing process, pressure head is applied on the slab thickness direction be applied to the compression on the width of plate slab direction, jointly realize in densification process that main nip and precompressed zone material are in the quasi-iso static pressing state.And the suitable size in pressurize district can make blank can suppress pressing process under the effect in pressurize district in blank along the flowing of slab length direction, improve main nip and precompressed zone blank etc. the static pressure effect.
Another object of the present invention is to provide the application of the densification device of above-mentioned jet deposition metal slabs for processing metal alloy and composite board thereof, and the feature of this application is:
The pressure surface horizontal force of main nip is on the slab by compacting;
The reduction in pass of pressure head is greater than the inclined height of pressure head precompressed zone with respect to main nip.
Utilize the characteristics of the densification device processing metal sheet alloy of jet deposition metal slabs of the present invention to be:
(1) can retain the uniformity of microscopic structure in the jet deposition blank in densification process, the inhomogeneous phenomenon of densification that can avoid the densification techniques such as extruding or hot pressing to cause, obtain fine and close uniformly, particularly for particulate reinforced composite, can keep away the inhomogeneous phenomenon of enhancing distribution of particles that other method for densifying cause, thereby guarantee the uniformity of mechanical property;
(2) this fine and close method can make the blank of deformed area be out of shape under the accurate static pressure state of three-dimensional compressive stress, is conducive to improve the deformability of blank, the phenomenon of the blank cracking of avoiding occurring in common wedge shape pressing process;
(3) place pure aluminum plate between blank end and mould side wall in this fine and close method compaction process, can guarantee that length direction has certain compression in compaction process, can make again plastic deformation along its length in the slab process, make fine and close better effects if simultaneously;
(4) this fine and close method adopts successively fine and close integral body densification that realizes deposit preform of small deformation, and institute's energy requirement is little, the required fine and close equipment of large-tonnage in the time of avoiding other injection deposition blanks fine and close;
(5) this method temperature rise effect in compaction process is little, keeps lower deformation temperature, can retain the tiny characteristics of injection deposition blank microscopic structure, avoids temperature rise to cause the alligatoring of microscopic structure.
The accompanying drawing explanation
Below in conjunction with accompanying drawing and the specific embodiment, the present invention is described in further detail.
The structural representation that Fig. 1 is densification device of the present invention, each coded representation in figure: 1-pressure head, 2-slab, 3-punching block, 4-electric calorifie installation, 5-base plate;
The cutaway view that Fig. 2 is Fig. 1 shown device pressure head;
Fig. 3 is jet deposition SiCP/Al-8.5Fe-1.3V-1.7Si composite slab quasi-iso static pressing compacting front and back metallographic microstructure in embodiment 2, and wherein Fig. 3 (a) is deposited, and Fig. 3 (b) is the compacting state;
Fig. 4 is the transmission electron microscope photo after jet deposition SiCP/Al-8.5Fe-1.3V-1.7Si composite slab quasi-iso static pressing compacting densification in embodiment 2.
The specific embodiment
The densified end face of the installation with pressure head of jet deposition metal slabs of the present invention refers on pressure head the end face be installed on drive unit.
The densified operative end surface with pressure head of jet deposition metal slabs of the present invention refers to the end face contacted with metal slabs in pressing process.
Pressure head step direction of the present invention refers to the progressively moving direction of pressure head in pressing process.Complete the single compacting step distance that pressure head is pushed ahead afterwards and should be less than or equal to the size of main nip in the charge length direction.
Reduction in pass of the present invention refers to the difference of depressing height by pressure head before this height of depressing of pressure head and stopping means adjustment after the adjustment stopping means, after the stopping means adjustment, before pressure head completes the densification of a thickness of whole slab, no longer adjusts.
With reference to figure 1, metal slabs densification device of the present invention comprises pressure head 1, base plate 5, punching block 3, electric calorifie installation 4 and stopping means, described punching block is placed on base plate, described pressure head is placed in the punching block top, described electric calorifie installation is located in the sidewall of punching block, with reference to figure 2, the working face of pressure head 1 is divided into respectively the first pressurize district, main nip, precompressed zone, zone, four, the second pressurize district from a side to opposite side.In addition, it should be noted that, the ram shaft that Fig. 2 provides is T-shaped to cross sectional shape, the part that on this T-shaped pressure head, radial dimension is larger is force transmission region, the effect of force transmission region is the load of forcing press to be passed to pressure head act on by fine and close slab, and prevents run-off the straight under asymmetric reaction force that pressure head gives at slab.
The overall difference of the disclosed device of densification device of the present invention and CN1873043 has been to provide the pressure head that two pressurize districts are arranged, one end of this external blank has added an aluminium backing plate with the blank uniform thickness, suppress slab flowing at length direction, apply the compression on length direction to being pressed slab, realize the densification of blank under accurate equal pressure, the impression that is conducive to avoid the cracking of blank in pressing process and reduces steel slab surface.
Aluminium backing plate of the present invention is for limiting slab flowing along its length, the aluminium backing plate contacts all the time slab one end in compaction process, all the time the end at slab applies compression, play the mobile and distortion along its length of restriction slab, and fine aluminium is than soft by dense material, therefore also allow slab that the distortion on the certain-length direction is arranged in compaction process, improve densified effect.
Adopt the densification device of jet deposition metal slabs of the present invention to carry out densification to slab, the force transmission region of pressure head is horizontally fixed on the forcing press top shoe, so that the pressure surface horizontal force of pressure head master nip is being pressed on the slab of compacting, metal slabs for thickness at 10~30mm, the firing equipment of densification device is heated to after material plasticity is out of shape required temperature be incubated 30min before compacting, so that even by fine and close heating of plate blank.
Adopt device of the present invention to carry out the densified man-hour that adds, when the difference of its method or relevant parameter and the disclosed processing method of CN1873043 is to adopt the designed quasi-iso static pressing device of the present invention fine and close, reduction in pass need be slightly larger than the inclined height of pressure head precompressed zone with respect to main nip, to guarantee that pressure head the second pressurize district can touch steel slab surface and play inhibition slab length to mobile effect when suppressing.
Embodiment 1:
Follow technical scheme of the present invention, with reference to figure 1 and Fig. 2, the concrete structure size of the densification device of the jet deposition metal slabs of this enforcement is as follows:
Punching block is the square frame-shaped without base plate, inwall size length * wide * height is 500mm * 110mm * 180mm, and punching block thickness is 60mm, adopts 45 steels to do, on the punching block sidewall, vertical direction is evenly arranged the stainless steel electrical bar that 16 single power are 1kW, and the electrical bar external diameter is 20mm.
Base plate size is long * wide * thick is 700mm * 300mm * 180mm, and punching block thickness is 60mm, adopts 45 steels to do, and on the punching block sidewall, vertical direction is evenly arranged the stainless steel electrical bar that 16 single power are 1kW, and the electrical bar external diameter is 20mm.
The pressure head of the present embodiment adopts 45 steels to do, and the length of pressure head * wide * thick be 110mm * 90mm * 300mm, about fall head meets pressure head master pressure surface and is greater than shaped as frame punching block height 60mm to force transmission region downside height.The pressure head force transmission region is of a size of 200mm * 110mm * 80mm, two pressurize districts are size 110mm * 30mm, precompressed zone is of a size of 110mm * 20mm, main nip is of a size of 110mm * 10mm, that is to say, the first pressurize district is of a size of 30mm in the charge length direction, and the second pressurize district is of a size of 30mm in the charge length direction, main nip is of a size of 10mm in the charge length direction, and precompressed zone is of a size of 20mm in the charge length direction.Other are of a size of:
The first pressurize district with respect to the horizontal plane angle of inclination be 1 °~2 °; Precompressed zone angle of inclination with respect to the horizontal plane is 5 °~6 °;
Between the first pressurize district and pressure head sidewall, the radius of transition arc is 10mm;
Between the first pressurize district and main nip, the radius of transition arc is 20mm;
Between main nip and precompressed zone, the radius of transition arc is 20mm;
The radius of the interval transition arc of precompressed zone and the second pressurize is 20mm;
Between the second pressurize district and pressure head sidewall, the radius of transition arc is 10mm;
The roughness of precompressed zone and main nip is 0.8 μ m, and the roughness in the first pressurize district and the second pressurize district is 12.5 μ m.
Embodiment 2:
Utilize device and the portable spray co deposition device of crucible in embodiment 1 to prepare SiC p/ Al-8.5Fe-1.3V-1.7Si composite slab.
Be chosen as the β-SiC of Mechanical Crushing in this embodiment as strengthening particle, average grain diameter is about 10 μ m,
It is long * wide * thick that the jet deposition slab first is sawn into is 460mm * 120mm * 30mm, then planing operation grow up * wide * thick be the slab of 450mm * 110mm * (20~25) mm.Place the base plate of device for compactly on 6300kN forcing press platform, make base plate be positioned at the central area of pressing machine table-board, then the punching block symmetry is positioned on base plate.Slab is flat in the compacting punching block, and at an end of slab, putting into long * wide * thick is the fine aluminium slab of 50mm * 110mm * 15mm.The pressure head that obsession is used is installed on the T-slot of the top shoe of forcing press, and the direction of T-slot is consistent in the length direction of punching block, can be along the length direction translation of punching block inwall when making to suppress pressure head and sliding along T-slot.The electric calorifie installation of device for compactly connects, and set temperature covers densification device with asbestos cloth, and temperature is incubated 30min after rising to design temperature.
Before concrete compacting, measure the distance of slab top face to edge on punching block, the compacting pressure head while depressing first, be distance that pressure head enters punching block be greater than the slab upper surface on punching block along distance 1.0~2.0mm, making the drafts of depressing first is 1.0~2.0mm.
Before compacting, the compacting tool set energising is heated, for aluminum alloy slab, heating-up temperature is 450 ℃~480 ℃, cover the punching block upper surface with asbestos in heating process and guarantee that temperature is even, temperature is incubated 30min after being elevated to preset temperature, and during heating, pressure head enters the compacting punching block, should, higher than steel slab surface, to avoid slab to produce the compacting distortion at low-temperature condition, cause the slab cracking.
Steel slab surface is through planing operation, and downtrodden metal slabs original thickness is 30mm, and the fine aluminium plate thickness of slab one end equals to be pressed the original thickness of slab.
Depress first pressure head and start compacting from the end away from the fine aluminium backing plate of slab, the reduction in pass of depressing first is 5%~10%.The drafts of pressure head is controlled by stop.After single is depressed, blank produces distortion, pressure head is depressed after lifting backward precompressed zone direction translation 8~10mm again, in the translation process, the drafts of pressure head remains unchanged, and so after the pressure head translation, suppresses, and repeatedly circulation is rear until pressure head master nip contact fine aluminium backing plate, whole slab completes the compacting of a time, and drafts is 5%~10%.
After whole order of classes or grades at school completes depressing of a time 5%~10%, insulation 20min, again pressure head is moved to the end of slab away from the fine aluminium backing plate, simultaneously by regulating the height of stop, depressing of pressure head of compacting highly lowered to 1.0~2.0mm, start depressing for the first time of second compacting, after compacting, identical with the first compacting, pressure head is again depressed after precompressed zone direction translation 8~10mm, until, before pressure head master nip contact fine aluminium backing plate completes the compacting together of whole slab, the drafts of pressure head remains unchanged.So realize the multiple tracks compacting densification to slab, it is 1.0~2.0mm that per pass is suppressed fine and close drafts, when overall reduction is 12~15mm, completes the compacting to the monoblock slab, realizes the integral body densification to slab.
Finally, by the pressure head local plastic deformation that compacting produces for deposit preform, make the hole in plastic deformation zone broken, make up, thereby realize the densified of plastic deformation zone.Because the accumulation of passing through local deformation of precompressed zone realizes the integral body densification of whole deposit preform.
In the present embodiment the punching block sidewall before putting into blank, should adopt graphite machine oil to be lubricated, after convenient compacting, blank deviates from.
During the device operation, keep the main pressure surface horizontal force of pressure head in blank surface, avoid suppressing rear pressure head and stay impression in blank surface.
Single translation distance during the pressure head translation should be less than or equal to the width of main pressure surface, and the single translational movement is less than and equals 10mm, gets 8~10mm.
SiC in the present embodiment pin/Al-8.5Fe-1.3V-1.7Si composite board, as shown in Fig. 3 (a), the jet deposition blank is owing to being involved in a large amount of gas in deposition process, so in deposit preform, there are a large amount of holes in the border of deposited particles and the junction of SiC particle and matrix, and its relative density is about 80%.After quasi-iso static pressing is densified, slab obtains effective densification, as shown in Fig. 3 (b), when overall reduction reaches 50%, slab is through the plastic deformation of aximal deformation value, between deposited particles, hole makes up and has realized metallurgical binding, and the SiC particle also is combined well between matrix.In addition, the SiC particle is uniformly distributed in matrix.As can be seen from Figure 4, aluminum matrix alloy average grain size be 500~800nm, the Al in matrix 12(Fe, V) 3the Si dispersed granules is 60~100nm.
The SiC particle reinforced Al matrix composite tubing prepared by the inventive method has the SiC even particle distribution, little in the deformation process temperature rise, the disperse of matrix microscopic structure is tiny, and the SiC particle is combined with matrix alloy well, the advantages such as the close property of composite is good, surface is little without micro-flaw, impression.

Claims (6)

1. the densified pressure head of using of jet deposition metal slabs, this pressure head is provided with installs end face and working end, it is characterized in that, described working end is provided with the first pressurize district, main nip, precompressed zone and the second pressurize district, and is followed successively by the first pressurize district, main nip, precompressed zone and the second pressurize district along the pressure head step direction;
Described main nip is horizontal plane, described precompressed zone be inclined-plane and autonomous nip to the installation end face tilt, between described main nip and precompressed zone, be smooth transition;
The material that the acting as of described the first pressurize district prevents master's nip when densified flows to the rightabout of pressure head step direction;
The acting as of described the second pressurize district prevents that the material of master's nip and precompressed zone flows to the pressure head step direction when densified.
2. the densified pressure head of using of jet deposition metal slabs as claimed in claim 1, it is characterized in that, described the first pressurize district be inclined-plane and autonomous nip to the installation end face tilt, between described the first pressurize district and pressure head sidewall, be smooth transition, between described the first pressurize district and main nip, be smooth transition; Described the second pressurize district is horizontal plane, between described the second pressurize district and pressure head sidewall, is smooth transition, between described the second pressurize district and precompressed zone, is smooth transition.
3. the densified pressure head of using of jet deposition metal slabs as claimed in claim 1, it is characterized in that, the roughness of described main nip is less than the roughness in the first pressurize district and the second pressurize district, and the roughness of described precompressed zone is less than the roughness in the first pressurize district and the second pressurize district.
4. a jet deposition porous sheet material densification device, this device comprises pressure head, base plate, punching block, electric calorifie installation and stopping means, it is characterized in that, the densified pressure head of using that described pressure head is claim 1,2 or 3 described jet deposition metal slabs.
5. jet deposition porous sheet material densification device as claimed in claim 4, is characterized in that, is provided with the aluminium backing plate in described punching block.
6. the densification device of the described jet deposition metal slabs of claim 4 or 5, for the application of processing metal alloy and composite board thereof, is characterized in that, this application comprises:
The pressure surface horizontal force of main nip is on downtrodden slab;
The reduction in pass of pressure head is greater than the inclined height of pressure head precompressed zone with respect to main nip.
CN201310462084.6A 2013-09-25 2013-09-25 The densified pressure head of jet deposition metal slabs, device and application Active CN103495732B (en)

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CN112108651A (en) * 2020-09-09 2020-12-22 江苏海洋大学 3D forming equipment for irradiating solidified metal in ultraviolet light selective area
CN112757449A (en) * 2020-12-07 2021-05-07 佛山市恒力泰机械有限公司 Intermittent continuous forming method for ceramic plate production
WO2022121211A1 (en) * 2020-12-07 2022-06-16 佛山市恒力泰机械有限公司 Intermittent continuous forming method and device for ceramic plate production
CN116252035A (en) * 2023-05-15 2023-06-13 杭州沈氏节能科技股份有限公司 Step-by-step continuous diffusion welding equipment and diffusion welding method

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CN112108651A (en) * 2020-09-09 2020-12-22 江苏海洋大学 3D forming equipment for irradiating solidified metal in ultraviolet light selective area
CN112757449A (en) * 2020-12-07 2021-05-07 佛山市恒力泰机械有限公司 Intermittent continuous forming method for ceramic plate production
WO2022121211A1 (en) * 2020-12-07 2022-06-16 佛山市恒力泰机械有限公司 Intermittent continuous forming method and device for ceramic plate production
CN116252035A (en) * 2023-05-15 2023-06-13 杭州沈氏节能科技股份有限公司 Step-by-step continuous diffusion welding equipment and diffusion welding method
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