CN107042357B - A kind of base cladding plate expanding method in big thickness oxygen-free copper cladding plate explosive welding - Google Patents
A kind of base cladding plate expanding method in big thickness oxygen-free copper cladding plate explosive welding Download PDFInfo
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- CN107042357B CN107042357B CN201710160008.8A CN201710160008A CN107042357B CN 107042357 B CN107042357 B CN 107042357B CN 201710160008 A CN201710160008 A CN 201710160008A CN 107042357 B CN107042357 B CN 107042357B
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- Prior art keywords
- plate
- continuation
- cladding plate
- cladding
- thickness
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- 238000005253 cladding Methods 0.000 title claims abstract description 82
- 238000003466 welding Methods 0.000 title claims abstract description 37
- 239000002360 explosive Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 23
- 239000010949 copper Substances 0.000 title claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 230000000977 initiatory effect Effects 0.000 claims abstract description 13
- 238000005474 detonation Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000010200 validation analysis Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 abstract description 11
- 238000005476 soldering Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 201000004569 Blindness Diseases 0.000 abstract description 2
- 238000004364 calculation method Methods 0.000 abstract description 2
- 238000011002 quantification Methods 0.000 abstract description 2
- 239000007790 solid phase Substances 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 238000004880 explosion Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 241001124569 Lycaenidae Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000014987 copper Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001739 rebound effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/06—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of high energy impulses, e.g. magnetic energy
- B23K20/08—Explosive welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/24—Preliminary treatment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses the base cladding plate expanding methods in a kind of big thickness oxygen-free copper cladding plate explosive welding, comprising: (1) increases continuation plate on substrate, cladding plate；(2) size of continuation plate is calculated according to the explosive parameter of substrate, the thickness of cladding plate and use and is determined；(3) cladding plate is connected by screw bolts with continuation plate, and the connection type of substrate and continuation plate is determined according to the material of substrate, wherein oxygen-free copper cladding plate thickness h >=15mm, substrate thickness >=1.0h.Base compound plate expanding method in the explosive welding of big thickness oxygen-free copper composite plate of the invention, it is determined that bolt strength and its number calculation formula realize quantification, are conducive to eliminate blindness；The method of control initiation ends not soldering and its boundary effect has been determined, ensure that the reliable welding on four sides of composite plate.The welded rate of the composite plate of technique welding reaches 90%, substantially increase the utilization rate of base compound plate, soldering face bond strength meets the law of force of bimetallic solid phase metallurgical bonding, combination interface be it is superior in quality fine wavy, fully meet composite plate welding quality requirement.
Description
Technical field
The invention belongs to explosion welding technique fields, and in particular to a kind of cladding plate is big thickness no-oxygen copper plate, and has spy
Base cladding plate expanding method in the explosion welding method of bimetallic (316L stainless steel, oxygen-free copper) composite plate of different quality requirement.
Background technique
Thermonuclear fusion power generation test heap needs a kind of ply-metal with very special quality requirement, it is desirable that the composite plate
It is combined by 316L stainless steel plate and a kind of welding of high purity oxygen free copper plate.Using welding methods such as traditional electric welding, friction welding (FW)s,
In the presence of the device is complicated, at high cost, Weld strength is low, the problems such as microdefect easily occurs in combination interface, and explosive welding is used to have
There are welding quality height, combination interface up to metallurgical bonding.But in practice, it has been found that thickness is greater than the no-oxygen copper plate of 15mm
As the explosive welding of cladding plate, according to prior art, welded rate is very low, and reduces as cladding plate thickness increases, and causes expensive
The waste of heavy metal；According to the related patented technology for only adding continuation plate to cladding plate, and two can be led to the problem of, first is that weldering
Conjunction rate is still relatively low, second is that the no-oxygen copper plate of big thickness is difficult to realize effectively weld with continuation plate.
Summary of the invention
Goal of the invention: the deficiencies in the prior art are directed to, the object of the present invention is to provide a kind of big thickness oxygen-free coppers
Base cladding plate expanding method in cladding plate explosive welding, it is ensured that the stock utilization of composite plate is 90% or more, and soldering face combines strong
Degree meets the law of force of bimetallic solid phase metallurgical bonding, and combination interface is fine wavy.
Technical solution: in order to achieve the above-mentioned object of the invention, The technical solution adopted by the invention is as follows:
A kind of base cladding plate expanding method in big thickness oxygen-free copper cladding plate explosive welding, the oxygen-free copper cladding plate thickness h
>=15mm, substrate thickness >=1.0h, including the following contents:
(1) increase continuation plate on substrate, cladding plate；
(2) size of continuation plate is calculated according to the explosive parameter of substrate, the thickness of cladding plate and use and is determined；
(3) cladding plate is connected by screw bolts with continuation plate, and the connection type of substrate and continuation plate is determined according to the material of substrate.
Base cladding plate expanding method in big thickness oxygen-free copper cladding plate explosive welding of the invention, as shown in Figure 1-3,
1, the surrounding of cladding plate 1 is both needed to increase continuation plate (3,2 initiation ends continuation plate 2, end continuation plate side continuation plates
4), for the continuation plate of substrate in addition to thickness is different from cladding plate continuation plate, shape, size are consistent with the continuation plate of cladding plate.
2, the material of continuation plate preferably uses intensity≤Q235 intensity general steel plate；
3, shape (trapezoidal+rectangular) as shown in Figure 1, main cause 2 shape of initiation ends continuation plate and size: (1) are used
Have two, first is that the explosive payload on continuation plate is reduced, second is that making detonation wave as close possible to plane wave；(2) width B1=cladding plate
Width B, top width k=30~50mm；(3) length L1≥L0+ (2~3) h, L0For the unsteady detonation segment length of explosive used
Degree, main cause have two, and one is to ensure that and reaches effective detonation in effective soldering area explosive, two allow for cladding plate and continuation plate it
Between have a length of fit, according to test, the influence area of the transition region is 2~3h；(4) thickness h1, h-1.5mm≤h1≤h。
4, cladding plate end and two sides continuation board size: (1) the length L of end continuation plate 32, 2h >=L2≥1.5h；Thickness
h2, h-1.5mm≤h2≤ h, width B2=B-b1, b1To cooperate length of bench；(2) size of two sides continuation plate 4: L3=L4=
L2, B3=B4=L, L are the length of cladding plate, h3=h4=h2.
5, the connection of cladding plate and continuation plate uses bolt fastening, the diameter D of initiation ends bolt 51According to cladding plate thickness and fry
Medicine characteristic and L1Etc. parameters, the method combined with validation trial using preresearch estimates determine；The mechanics of preresearch estimates
Model is as follows:
As seen from Figure 1, in all connection bolts, intermediate bolt strained maximum, if middle bolt fastening it is corresponding one it is a length of
L11, width d, with a thickness of H1Strip be considered as a lever, the lever stress is as shown in Figure 4.In figure, A is the fulcrum of lever, i.e.,
The contact point of the end of the root and cladding plate step of continuation pallet rank；According to lever balance theory, there is F1·L11=F2·L2+
F3·L3+F4·L4
In formula, F1For the active force of explosive charge product suffered by lever upper surface, L2For bolt-center and fulcrum A away from
From.
F1=PS=PL0·d
In formula, P is average pressure of the explosive unsteady detonation section to continuation plate upper face, and the explosion generally used is welded
Meet explosive, P=8000-10000MPa, L0- unstable section detonation length, the d-diameter of bolt.
L11=1/2L0；
F2=K [σb]πd2/4
K is the coefficient of dynamics of tensile strength, general K >=2-10 in formula；[σb] it is working strength.
F3=F4=K [τ] π d2/4
L3=L4=1/3h
H is the thickness of continuation plate.
After obtaining the preliminary diameter of bolt using above-mentioned formula, carry out explosive welding experiment, if bolt is broken,
It is appropriate to increase the diameter of bolt, it is tested again, until bolt is not until fracture.It, can be appropriate if bolt is not broken
Reduce the diameter of bolt to be tested, to seek the minimum diameter of bolt not being broken.
Its excess-three side diameter of bolt D2=(1/4~1/3) h, the diameter system obtain according to experiment.
6, cladding plate and continuation crab bolt junction are cooperated using step, as shown in figure 3, according to continuation plate and cladding plate intensity
Matching relationship should have continuation plate step height h3With the step height h of cladding plate3' ratio be inversely proportional with intensity, intensity is lower than
The continuation plate of Q235 can use h3With h3' ratio be 1:2, with ensure continuation plate and cladding plate step root in explosive welding
It is not broken.Length of bench b1=(1.5~2) D, D are the connection diameter of bolt, in order to the fastening of bolt.
7, the shape, length and width of substrate continuation plate are consistent with cladding plate continuation plate, and thickness is more than or equal to substrate thickness
Half, in order to generate effective collision between the continuation plate of substrate and the continuation plate of cladding plate, eliminate explosive boundary absorb wave
While effect, be conducive to the rebound effect for eliminating boundary；Its connection type is depending on the solderability of continuation plate and substrate, such as easily
Normal welding is then used in soldering；Referring to the connection type of cladding plate and continuation plate if it should not weld.
The utility model has the advantages that compared with prior art, the base in the explosive welding of big thickness oxygen-free copper composite plate of the invention is multiple
Plate expanding method, it is determined that bolt strength and its number calculation formula realize quantification, are conducive to eliminate blindness；It determines
The method of control initiation ends not soldering and its boundary effect, ensure that the reliable welding on four sides of composite plate.Technique welding
The welded rate of composite plate reach 90%, substantially increase the utilization rate of base compound plate, it is solid that soldering face bond strength meets bimetallic
The law of force of phase metallurgical bonding, combination interface be it is superior in quality fine wavy, fully meet the composite plate welding quality
It is required that.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for expanding plate；
Fig. 2 is the side view for expanding plate；
Fig. 3 is the step schematic diagram for expanding plate；
Fig. 4 is lever stress model schematic.
Specific embodiment
The present invention is described further combined with specific embodiments below.
Embodiment 1
Cladding plate is having a size of 1800mm × 1000mm × 23mm C10100 no-oxygen copper plate, and substrate is 1800mm × 1000mm
The 316L stainless steel plate of × 90mm.
1) continuation plate only is added in cladding plate initiation ends, continuation plate shape is long as shown in Figure 1, the material of continuation plate is Q235
Degree is 250mm, and width is of same size with cladding plate, with a thickness of 23mm.Bolt uses M16 bolt, and quantity is 5, carries out explosion weldering
It connects, welded rate is about 70% as the result is shown.Main not soldering area occurs in end and two sides.
2) initiation ends continuation plate and the bolt used are same as above, and continuation board width in end is equal to cladding plate width, length 30mm.Two
Continuation plate length in side is equal to cladding plate length, and width is equal to 30mm.The bolt of end and two sides uses M6, and screw pitch is 12mm spiral shell
Bolt.Explosive welding is carried out, welded rate is still about 70% as the result is shown, and mainly not soldering area occurs in end and two sides, with
Aforementioned to compare, welded rate is substantially without improvement.
3) the continuation plate of cladding plate is same 2), is 50mm, shape, length in the equal additional thickness of the surrounding of substrate using welding method
Wide continuation plate identical with cladding plate continuation plate.Explosive welding is carried out, welded rate reaches 96% as the result is shown, and not soldering area is mainly sent out
Life is in initiation ends.
Embodiment 2
Cladding plate is having a size of 1800mm × 1000mm × 15mm C10100 no-oxygen copper plate, and substrate is 1800mm × 1000mm
The 316L stainless steel plate of × 45mm.
Continuation plate is added in cladding plate initiation ends, as shown in Figure 1, the material of continuation plate is Q235, length is continuation plate shape
220mm, width is of same size with cladding plate, with a thickness of 15mm.Bolt uses M12 bolt, screw pitch 22mm.End continuation board width etc.
In cladding plate width, length 25mm.Continuation plate length in two sides is equal to cladding plate length, and width is equal to 25mm；End and two sides
Bolt uses M4, and screw pitch is 8mm bolt.
It is that 30mm, shape, length and width and cladding plate continuation plate are identical in the equal additional thickness of the surrounding of substrate using welding method
Continuation plate.
Explosive welding is carried out, welded rate reaches 98% as the result is shown, and not soldering area occurs mainly in initiation ends.
Claims (6)
1. the base cladding plate expanding method in a kind of big thickness oxygen-free copper cladding plate explosive welding, the oxygen-free copper cladding plate thickness h >=
15mm, substrate thickness >=1.0h, which is characterized in that including the following contents:
(1) increase continuation plate on substrate, cladding plate；
(2) size of continuation plate is calculated according to the explosive parameter of substrate, the thickness of cladding plate and use and is determined；
(3) cladding plate is connected by screw bolts with continuation plate, and the connection type of continuation plate and substrate is to weld or use cladding plate and continuation
The identical connection type connection of plate；
Wherein, in (2), the shape of the continuation plate of cladding plate surrounding, size determination are as follows:
1) initiation ends continuation board width B1With end continuation board width B2It is equal to cladding plate width B；
2) initiation ends continuation plate length L1≥L0+ (2~3) h, L0For the unsteady detonation segment length of explosive used, top width k
=30~50mm；
3) the length L of its excess-three side continuation plate2=L3=L4, 2h >=L2≥1.5h；Thickness h2=h3=h4, h-1.5mm≤h2≤h；
4) two sides continuation board width B3=B4=L, L are cladding plate length.
2. the base cladding plate expanding method in big thickness oxygen-free copper cladding plate explosive welding according to claim 1, feature exist
In: (1) in, it is both needed to increase continuation plate in the surrounding of the cladding plate, substrate, the continuation plate of substrate is except thickness and cladding plate continuation
Plate is different outer, and shape, size are consistent with the continuation plate of cladding plate.
3. the base cladding plate expanding method in big thickness oxygen-free copper cladding plate explosive welding according to claim 1, feature exist
In the continuation plate matter is intensity≤Q235 general steel plate.
4. the base cladding plate expanding method in big thickness oxygen-free copper cladding plate explosive welding according to claim 1, feature exist
In in (3), cladding plate is connected by screw bolts with continuation plate, initiation ends diameter of bolt D1According to cladding plate thickness and explosive characteristic and L1
Parameter is determined using the method that preresearch estimates is combined with validation trial；Its excess-three side diameter of bolt D2=(1/4~1/
3)h。
5. the base cladding plate expanding method in big thickness oxygen-free copper cladding plate explosive welding according to claim 4, feature exist
In in (3), cladding plate and continuation crab bolt junction are cooperated using step, continuation plate step height h3=1/3h, length of bench b1
=(1.5~2) D, D are the connection diameter of bolt.
6. the base cladding plate expanding method in big thickness oxygen-free copper cladding plate explosive welding according to claim 1, feature exist
In shape, the length and width of substrate continuation plate are consistent with cladding plate continuation plate, and thickness is more than or equal to the half of substrate thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710160008.8A CN107042357B (en) | 2017-03-17 | 2017-03-17 | A kind of base cladding plate expanding method in big thickness oxygen-free copper cladding plate explosive welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710160008.8A CN107042357B (en) | 2017-03-17 | 2017-03-17 | A kind of base cladding plate expanding method in big thickness oxygen-free copper cladding plate explosive welding |
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| Publication Number | Publication Date |
|---|---|
| CN107042357A CN107042357A (en) | 2017-08-15 |
| CN107042357B true CN107042357B (en) | 2019-05-31 |
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| CN201710160008.8A Expired - Fee Related CN107042357B (en) | 2017-03-17 | 2017-03-17 | A kind of base cladding plate expanding method in big thickness oxygen-free copper cladding plate explosive welding |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE8003071L (en) * | 1980-04-23 | 1981-10-24 | Nitro Nobel Ab | SET FOR EXPLOSION WELDING OF THE SELECTION SUBSTANCES FOR PACKAGE ROLLING |
| CN100368136C (en) * | 2005-12-28 | 2008-02-13 | 西部金属材料股份有限公司 | Method of small surface area noble metal explosion combination |
| CN102240845B (en) * | 2011-05-27 | 2013-04-24 | 舞钢神州重工金属复合材料有限公司 | Explosive welding process for super-long and super-wide composite boards |
| CN103056508B (en) * | 2013-01-18 | 2014-11-12 | 中国人民解放军理工大学野战工程学院 | Explosive welding method for bimetal composite boards with special quality requirements |
| CN103639585B (en) * | 2013-12-21 | 2016-05-25 | 西安天力金属复合材料有限公司 | The control method of the compound middle detonator zone of thick multiple layer zirconium/titanium/steel composite board blast |
| CN104096962B (en) * | 2014-06-17 | 2016-03-09 | 王晖 | A kind of explosion welding method of composite metal plate of super thick cladding plate |
| CN104308463B (en) * | 2014-08-26 | 2017-01-11 | 西安天力金属复合材料有限公司 | Preparation method of super-long titanium/pipeline steel composite plate for oil-gas pipeline |
| CN105855686B (en) * | 2016-06-02 | 2019-06-25 | 南京钢铁股份有限公司 | A kind of mounting structure and its method of compound plate and base base explosive welding |
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