CN209363963U - A kind of Diffusion Welding tooling for large-scale liquid cooling framing structural member - Google Patents
A kind of Diffusion Welding tooling for large-scale liquid cooling framing structural member Download PDFInfo
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- CN209363963U CN209363963U CN201822122468.4U CN201822122468U CN209363963U CN 209363963 U CN209363963 U CN 209363963U CN 201822122468 U CN201822122468 U CN 201822122468U CN 209363963 U CN209363963 U CN 209363963U
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Abstract
The utility model discloses a kind of Diffusion Welding toolings for large-scale liquid cooling framing structural member.Including bottom plate, top plate a pair of short side plate and a pair of long side plate；Bottom plate is identical with top board structure, and inside is corresponding；The medial surface of bottom plate is plate, and lateral surface is equipped with latticed reinforcing rib, and the middle part of each grid is equipped with threaded connector；The space that a pair of long side plate and a pair of of short side plate surround is the workpiece space for placing welded part.When for welding, welded part is located on the backing plate in workpiece space, and pressing plate is placed in the top surface of welded part；Being connected through a screw thread part makes top plate, pressing plate, welded part, backing plate and bottom plate form a fixed entirety.The Diffusion Welding tooling can realize the control to the temperature and power of product using thermal expansion and cold contraction effect, and then the diffusion welding (DW) of the cold skeleton of mainframe carrier fluid is realized using conventional huge vacuum installations.
Description
Technical field
The utility model belongs to material welding technology field, and in particular to the cold skeleton welding technique of mainframe carrier fluid, specifically
It is related to the Diffusion Welding of aluminium alloy liquid cooling skeleton.
Background technique
The cold skeleton of mainframe carrier fluid is one of nuclear structure of airborne radar, it is desirable that can quickly be in extreme course of battle
Radar electric device heat dissipation, it is ensured that radar system reliability service.Therefore liquid cooling skeleton is right other than having high heat dissipation performance
The sealing reliability of its inner flow passage requires high.The cold skeleton of mainframe carrier fluid is mainly using soldering or electron beam welding at present
Both it connecing, the former weld seam reliability is poor, and latter configuration welding deformation is big, and internal liquid cooling structure precision is difficult to ensure, furthermore
Cost is higher.
A kind of good welds method of liquid cooling framing structural member is Diffusion Welding.Diffusion welding (DW) is by two feature contacts faces
On atom phase counterdiffusion make contact surface disappear so that formed an entirety, finally realize two parts welding method, weldering
Seam intensity can reach suitable with base material, and soldering reliability is high.In order to realize contact surface atom phase counterdiffusion, need to pressurize to part
Guarantee interface microscopic contact, while to heat parts, improving atom diffusion energy, meanwhile, welding process needs complete in a vacuum chamber
At.Therefore, diffusion welding (DW) device core is that control function and the at high temperature vacuum chamber of pressure loading device are cooled down with heating.By
It is limited in technology and demand, the equipment size of diffusion welding (DW) both at home and abroad is smaller at present, and large-scale liquid cooling framing structural member can not use should
Method is welded.
Utility model content
In order to realize the Diffusion Welding of large-scale liquid cooling framing structural member, the utility model provides a kind of for large-scale liquid cooling bone
The Diffusion Welding tooling of frame structural member.
A kind of Diffusion Welding tooling for large-scale liquid cooling framing structural member includes bottom plate 1, top plate 4,5 and of a pair of of short side plate
A pair of long side plate 6；
The bottom plate 1 is identical with 4 structure of top plate；The medial surface of bottom plate 1 is plate, and lateral surface is equipped with latticed reinforcement
Muscle 41 offers through-hole 42 in the middle part of each grid；The medial surface of bottom plate 1 and the medial surface of top plate 4 are corresponding, each through-hole 42
It is interior to be equipped with threaded connector；The inside of bottom plate 1 and the inside of top plate 4 are corresponding；
A pair of long side plate 6 and a pair of of short side plate 5, a pair of long side plate 6 and a pair of of short side plate 5 are fixed on the bottom plate 1
The space surrounded is the workpiece space for placing welded part；Bottom plate 1 in workpiece space is equipped with backing plate 2 and pressing plate 3；
When for welding, welded part is located on backing plate 2, and pressing plate 3 is located at the top surface of welded part, then covers top plate
4；By the threaded connector on top plate 4, the threaded connector on bottom plate 1 by top plate 4, a pair of of short side plate 5, a pair of long side plate 6
It is fixedly connected with bottom plate 1, pressing plate 3, welded part and backing plate 2 is compressed by the load threaded connector on top plate 4, make to push up
Plate 4, pressing plate 3, welded part, backing plate 2 and bottom plate 1 form a fixed entirety.
The technical solution further limited is as follows:
The pair of long side plate 6 is a pair of of parallel-plate, and a pair of of short side plate 5 is a pair of of parallel-plate, and a pair of of short side plate 5 is located at one
To between long side plate 6；By adjusting the spacing between a pair of of short side plate 5, the size for adjusting workpiece space is realized.
The top and bottom of the pair of long side plate 6, the top and bottom of a pair of short side plate 5 offer screw thread respectively
Hole makes a pair of long side plate 6, a pair of of short side plate 5 be respectively fixedly connected with bottom plate 1 and top plate by threaded hole and the cooperation of fastening screw 8
4。
Through-hole aperture in the middle part of 4 medial surface of top plate is hexagon aperture, and the fastening screw nut 10 is fixed at institute
It states in hexagon aperture.
Each grid is square, side length 150mm-250mm.
The part material of the Diffusion Welding tooling is heat resisting steel.
The welding method of Diffusion Welding tooling based on the large-scale liquid cooling framing structural member, operating procedure are as follows:
(1) welded part is plate, and welded part is placed on backing plate 2, is added at the top of welded part
Pressing plate 3, then cover top plate 4；By the fastening screw on top plate 4, the fastening screw on bottom plate 1 by top plate 4, a pair of of short side plate 5,
A pair of long side plate 6 is fixedly connected with bottom plate 1, by the effect of loading bolt 11 and fastening screw nut 10 by pressing plate 3, soldered work
Part and backing plate 2 compress；Top plate 4, pressing plate 3, welded part, backing plate 2 and bottom plate 1 is set to form a fixed entirety；And it is placed on
On welding platform in vacuum drying oven；
Welding platform plane degree is less than 0.01um；
The minimum spacing S of a pair of of short side plate 5 of welded part distance or a pair of long side plate 6 should be greater than Δ α × L × Δ T,
Δ α is the coefficient of thermal expansion differences of welded part material and 1 material of bottom plate, and L is welded part minimum circumscribed circle diameter, Δ T
For the difference for welding maximum temperature and room temperature；
(2) welded part is loaded by the loading bolt 11 on top plate 4, load torque and loading bolt 11 are apart from expansion
The distance for dissipating the vertical center line of welding tooling is directly proportional, and loading sequence is first remote rear close；Apart from the vertical of Diffusion Welding tooling
The equidistant loading bolt 11 at center loads moment of torsion etc.；
(3) vacuum drying oven is closed, vacuum degree reaches 3 × 10-2The operation that cools down afterwards is first heated in Pa, progress: in 470min, respectively
Four-stage is heated to 530 DEG C；In 165min, four-stage is cooled to 80 DEG C respectively；
(4) vacuum fire door is opened, load screw bolt 11 and fastening screw 8 are removed, take out Diffusion Welding tooling and is soldered
Part is cooled to room temperature, the workpiece for the welding completed.
The operating procedure of the welding method further limited is as follows:
Described to be loaded as load torque in the step (2), load torque is the load screw 11 apart from Diffusion Welding
The distance of the vertical centre of tooling and the product of directed force F, directed force F 250-1000N.
In the step (2), the vertical center line of Diffusion Welding tooling is the central point of bottom plate 1 and the central point of top plate 4
Between vertical join line.
In the step (3), it is evenly heated in 30min and is warming up to 250 DEG C of heat preservation 40min；The heat temperature raising in 30min
To 400 DEG C, 120min is kept the temperature；It is heated to 500 DEG C in 40min, keeps the temperature 120min；530 are heated in 30min
DEG C, keep the temperature 60min；It is cooled to 500 DEG C in 10min, keeps the temperature 30min；It is cooled to 400 DEG C in 20min, keeps the temperature 30min；?
It is cooled to 200 DEG C in 15min, keeps the temperature 30min；80 DEG C are cooled in 30min.
The advantageous effects of the utility model embody in the following areas:
1. the utility model is realized using Diffusion Welding tooling and thermal expansion and cold contraction effect to the cold skeleton knot of mainframe carrier fluid
The control of the temperature and power of component.Diffusion Welding tooling at room temperature carries out about the thickness direction of the part of two face contacts
Beam Diffusion Welding tooling and is thermally expanded in a thickness direction in temperature-rise period by weldering part, due to welding tooling
The thermal expansion coefficient of material heat resisting steel be much smaller than and by the material aluminium alloy of weldering part, therefore by weldering aluminum alloy part heat up it is swollen
Pressure during swollen by welding tooling, and as the temperature rises, it is bigger by the compressive deformation of weldering part, in welding temperature
Under, the yield strength of its aluminum alloy materials is equal to by the pressure of weldering part.It is real under the action of the pressure and temperature by weldering part
Diffusion Welding is showed.
2, diffusion welding (DW) is realized using the Diffusion Welding tooling of the utility model, avoid conventional diffusion welding (DW) and need with high temperature
The special welding equipment of pressure loading device, and then breach the vacuum-chamber dimensions limitation of conventional Diffusion Welding equipment, Jin Erli
The diffusion welding (DW) of large scale structure can be realized with conventional huge vacuum installations.
3, diffusion welding (DW) is realized using the Diffusion Welding tooling of the utility model, be by the deflection of weldering part in welding process
By the thermal expansion amount difference of weldering part and welding tooling, which can be carried out by the thickness of backing plate and pressing plate
Accuracy controlling can be improved welding quality, structure precision and the reliability of the cold framing structural member of mainframe carrier fluid.
4, diffusion welding (DW) is realized using the Diffusion Welding tooling of the utility model, a furnace more than one piece product may be implemented while welding
It connects, improves Product jointing efficiency, reduce product cost.
5, the utility model Diffusion Welding Fixture Design is reasonable, is realizing Diffusion Welding tooling to being constrained by weldering part
On the basis of, being regulated and controled by the force of load screw, avoids pressing plate and deform, guarantee is effectively bonded by weldering part with pressing plate,
And then guarantee by weldering piece surface uniform force.
6, the utility model is easy to operate, and versatility is good, the position of the short side plate by adjusting long side plate, Neng Goushi
The welding of existing various sizes part.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the A-A cross-sectional view of Fig. 2.
Fig. 4 is the partial sectional view that top plate is removed in Fig. 1.
Fig. 5 is top board structure bottom view.
Fig. 6 is the structural schematic diagram that top plate and the long side plate in side are removed in Fig. 1.
Fig. 7 is the time-temperature figure of the heating operation in vacuum drying oven.
Serial number in Fig. 1-6: bottom plate 1, backing plate 2, pressing plate 3, top plate 4, short side plate 5, long side plate 6, threaded hole 7, fastening spiral shell
Follow closely 8, liquid cooling framing structural member 9, fastening screw nut 10, loading bolt 11, latticed reinforcing rib 41, through-hole 42, hexagon aperture 43.
Specific embodiment
With reference to the accompanying drawing, by embodiment, the utility model is further described.
Embodiment 1
Referring to Fig. 1, a kind of Diffusion Welding tooling for large-scale liquid cooling framing structural member includes bottom plate 1, top plate 4, a pair of
Short side plate 5 and a pair of long side plate 6.
Referring to fig. 2, Fig. 3 and Fig. 5, bottom plate 1 are identical with 4 structure of top plate；The medial surface of bottom plate 1 is plate, on lateral surface
Equipped with latticed reinforcing rib 41, each grid is square, side length 200mm；Through-hole 42 is offered in the middle part of each grid.Bottom
The medial surface of plate 1 and the medial surface of top plate 4 are corresponding, and each through-hole 42 is provided with threaded connector.
Referring to fig. 4, a pair of long side plate 6 and a pair of of short side plate 5, a pair of long side plate 6 and a pair of of short side are fixed on bottom plate 1
The space that plate 5 surrounds is the workpiece space for placing welded part；A pair of long side plate 6 is a pair of of parallel-plate, and a pair of of short side plate 5 is one
To parallel-plate, a pair of of short side plate 5 is located between a pair of long side plate 6；By adjusting the spacing between a pair of of short side plate 5, realizes and adjust
Save the size of workpiece space.The top and bottom of a pair of long side plate 6, the top and bottom of a pair of short side plate 5 offer respectively
Threaded hole makes a pair of long side plate 6, a pair of of short side plate 5 be respectively fixedly connected with 1 and of bottom plate by threaded hole and the cooperation of fastening screw 8
Top plate 4.
Referring to Fig. 3 and Fig. 4, the bottom plate 1 in workpiece space is equipped with backing plate 2 and pressing plate 3, by loading bolt 11 and and tightly
The cooperation of nut 10 compresses pressing plate 3, welded part and backing plate 2, and the through-hole aperture in the middle part of 4 medial surface of top plate is hexagon
Aperture, fastening screw nut 10 are fixedly installed in hexagon aperture.
The making material of Diffusion Welding tooling for large-scale liquid cooling framing structural member is heat resisting steel.
Referring to Fig. 6, when for welding, by adjusting the spacing between a pair of of short side plate 5, the big of workpiece space is regulated
It is small；Backing plate 2 is placed on bottom plate 1 in workpiece space, welded part is put on backing plate 2, pressing plate 3 is placed on welded part work
The top surface of part, then cover top plate 4；It is by the fastening screw 8 on top plate 4, the fastening screw 8 on bottom plate 1 that top plate 4, a pair is short
Side plate 5, a pair of long side plate 6 are fixedly connected with bottom plate 1；By loading bolt 11 on top plate 4 and fastening screw nut 10 by pressing plate 3,
Welded part and backing plate 2 compress, make top plate 4, pressing plate 3, welded part, backing plate 2 and bottom plate 1 formed one it is fixed whole
Body.
Embodiment 2
The specific welding operating procedure of the utility model is as follows:
(1) welded part is the liquid cooling framing structural member 9 of plate, the minimum circumscribed circle diameter of liquid cooling framing structural member 9
Liquid cooling framing structural member 9 is placed on backing plate 2 by 900mm, adds pressing plate 3 at the top of liquid cooling framing structural member 9, then cover
Top plate 4.By the fastening screw 8 on top plate 4, the fastening screw 8 on bottom plate 1 by top plate 4, a pair of of short side plate 5, a pair of long side plate
6 are fixedly connected with bottom plate 1, by loading bolt 11 on top plate 4 and fastening screw nut 10 by pressing plate 3,9 and of liquid cooling framing structural member
Backing plate 2 compresses；Top plate 4, pressing plate 3, liquid cooling framing structural member 9, backing plate 2 and bottom plate 1 is set to form a fixed entirety.It is put into true
On welding platform in empty furnace, it is desirable that the flatness of welding platform is less than 0.01um.Liquid cooling framing structural member 9 is placed in the middle
Place, the spacing of a pair of of short side plate 5 of distance and a pair of long side plate 6 is equal and is 10mm, greater than Δ α × L × Δ T=
(0.000023-0.000011) × 900 × (500-20)=5.2mm.
(2) liquid cooling framing structural member 9 is loaded by the loading bolt 11 on top plate 4, load torque and load spiral shell
The distance of vertical center line of the bolt 11 apart from Diffusion Welding tooling is directly proportional, and loading sequence is first remote rear close；Apart from Diffusion Welding
The equidistant loading bolt 11 of the vertical centre of tooling loads moment of torsion etc..Loading torque is the load screw 11 apart from expansion
Dissipate the distance of the vertical centre of welding tooling and the product of directed force F, directed force F takes 500N, i.e., distance center nearest 4 plus
The load torque for carrying bolt 11 is 70NM, i.e. the load torque of 12 close loading bolts 11 of distance center second is 210NM.Expand
Dissipate vertical join line of the vertical center line of welding tooling between the central point of bottom plate 1 and the central point of top plate 4.
(3) vacuum drying oven is closed, vacuum degree reaches 3 × 10-2Pa carries out heating operation referring to Fig. 7: uniformly adding in 30min
Heat is warming up to 250 DEG C of heat preservation 40min；It is heated to 400 DEG C in 30min, keeps the temperature 120min；The heat temperature raising in 40min
To 500 DEG C, 120min is kept the temperature；It is heated to 530 DEG C in 30min, keeps the temperature 60min；It is cooled to 500 DEG C in 10min, protects
Warm 30min；It is cooled to 400 DEG C in 20min, keeps the temperature 30min；It is cooled to 200 DEG C in 15min, keeps the temperature 30min；In 30min
Inside it is cooled to 80 DEG C.
(4) vacuum fire door is opened, loading bolt 11 and fastening screw 8 are removed, takes out Diffusion Welding tooling and welded part,
It is cooled to room temperature, obtains the liquid cooling framing structural member 9 for completing welding.
Claims (6)
1. a kind of Diffusion Welding tooling for large-scale liquid cooling framing structural member, it is characterised in that: including bottom plate (1), top plate
(4), a pair of of short side plate (5) and a pair of long side plate (6)；
The bottom plate (1) is identical with top plate (4) structure；The medial surface of bottom plate (1) is plate, and lateral surface is equipped with latticed add
Strengthening tendons (41) offer through-hole (42) in the middle part of each grid；The medial surface of bottom plate (1) and the medial surface of top plate (4) are corresponding；
Threaded connector is equipped in each through-hole (42)；The inside of bottom plate (1) and the inside of top plate (4) are corresponding；
A pair of long side plate (6) and a pair of of short side plate (5), a pair of long side plate (6) and a pair of of short side are fixed on the bottom plate (1)
The space that plate (5) surrounds is the workpiece space for placing welded part；Bottom plate (1) in workpiece space is equipped with backing plate (2) and presses
Plate (3)；
When for welding, welded part is located on backing plate (2), and pressing plate (3) is located at the top surface of welded part, then covers top plate
(4)；By the threaded connector on top plate (4), the threaded connector on bottom plate (1) by top plate (4), a pair of of short side plate (5), one
Long side plate (6) is fixedly connected with bottom plate (1), passes through the cooperation of loading bolt (11) and fastening screw nut (10) on top plate (4)
Pressing plate (3), welded part and backing plate (2) are compressed, top plate (4), pressing plate (3), welded part, backing plate (2) and bottom plate are made
(1) a fixed entirety is formed.
2. a kind of Diffusion Welding tooling for large-scale liquid cooling framing structural member according to claim 1, it is characterised in that:
The pair of long side plate (6) is a pair of of parallel-plate, and a pair of of short side plate (5) is a pair of of parallel-plate, and a pair of of short side plate (5) is located at a pair
Between long side plate (6)；By adjusting the spacing between a pair of of short side plate (5), the size for adjusting workpiece space is realized.
3. a kind of Diffusion Welding tooling for large-scale liquid cooling framing structural member according to claim 1, it is characterised in that:
The top and bottom of the pair of long side plate (6), the top and bottom of a pair of short side plate (5) offer threaded hole respectively, lead to
Crossing threaded hole and fastening screw (8) cooperation makes a pair of long side plate (6), a pair of of short side plate (5) be respectively fixedly connected with bottom plate (1) and top
Plate (4).
4. a kind of Diffusion Welding tooling for large-scale liquid cooling framing structural member according to claim 1, it is characterised in that:
Through-hole aperture in the middle part of top plate (4) medial surface is hexagon aperture, and the fastening screw nut (10) is fixed at described six
In the shape aperture of side.
5. a kind of Diffusion Welding tooling for large-scale liquid cooling framing structural member according to claim 1, it is characterised in that:
Each grid is square, side length 150mm-250mm.
6. a kind of Diffusion Welding tooling for large-scale liquid cooling framing structural member according to claim 1, it is characterised in that:
The part material of the Diffusion Welding tooling is heat resisting steel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822122468.4U CN209363963U (en) | 2018-12-18 | 2018-12-18 | A kind of Diffusion Welding tooling for large-scale liquid cooling framing structural member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822122468.4U CN209363963U (en) | 2018-12-18 | 2018-12-18 | A kind of Diffusion Welding tooling for large-scale liquid cooling framing structural member |
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| Publication Number | Publication Date |
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| CN209363963U true CN209363963U (en) | 2019-09-10 |
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ID=67833101
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| CN201822122468.4U Active CN209363963U (en) | 2018-12-18 | 2018-12-18 | A kind of Diffusion Welding tooling for large-scale liquid cooling framing structural member |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396725A (en) * | 2018-12-18 | 2019-03-01 | 中国电子科技集团公司第三十八研究所 | A kind of Diffusion Welding tooling for large-scale liquid cooling framing structural member |
| CN111451661A (en) * | 2020-04-29 | 2020-07-28 | 三一重机有限公司 | Plate welding deformation control device and welding equipment |
-
2018
- 2018-12-18 CN CN201822122468.4U patent/CN209363963U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396725A (en) * | 2018-12-18 | 2019-03-01 | 中国电子科技集团公司第三十八研究所 | A kind of Diffusion Welding tooling for large-scale liquid cooling framing structural member |
| CN111451661A (en) * | 2020-04-29 | 2020-07-28 | 三一重机有限公司 | Plate welding deformation control device and welding equipment |
| CN111451661B (en) * | 2020-04-29 | 2021-11-09 | 三一重机有限公司 | Plate welding deformation control device and welding equipment |
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