CN1586785A - Explosion welding method for low melting point metal composite plate - Google Patents
Explosion welding method for low melting point metal composite plate Download PDFInfo
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- CN1586785A CN1586785A CN 200410050359 CN200410050359A CN1586785A CN 1586785 A CN1586785 A CN 1586785A CN 200410050359 CN200410050359 CN 200410050359 CN 200410050359 A CN200410050359 A CN 200410050359A CN 1586785 A CN1586785 A CN 1586785A
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Abstract
The present invention belongs to the field of explosion welding technology and provides one kind of explosion welding method for low melting point alloy plates. After one thin transition metal layer is set between the covering plate of low melting point metal and the base plate, once explosion welding is performed to manufacture composite low melting point metal plate. The present invention may be sued in manufacturing composite plate of Al, Mg, Pb, Sn and their alloy, and has the advantages of making thick composite low melting point alloy plate in once explosion, low cost, high production efficiency, raised upper explosion limit, increased welding parameter range and high finished product rate.
Description
Technical field
The invention belongs to the manufacturing field of composite metal plate, specially refer to a kind of explosive welding production method of low-melting-point metal composite plate.
Background technology
Explosive welding (or it is compound to explode) method has been widely used for making various composite metal plates, can produce various composite boards such as stainless steel-steel, aluminium-steel, titanium-steel, copper-steel, copper-aluminium, these composite boards are mainly used in the device fabrication of industries such as chemical industry, oil, water conservancy, power engineering.In these device fabrications, usually need to adopt aluminium, magnesium, lead, tin and alloy thereof as composite bed, yet, the fusing point of these composite beds is lower, when explosive welding, especially during the thicker composite bed of welding, it is very narrow that the welding parameter window becomes, make explosive welding become very difficult, even can cause the welding failure.With aluminium and alloy thereof and steel explosive welding is example, and " superfusion " cracking phenomena usually can take place the comparatively difficulty that general explosive welding 6mm thick aluminium coating just becomes, and has a strong impact on composite plate quality and yield rate; Common solution is to adopt the subsequent explosion welding, promptly at first on substrate, weld the aluminium sheet of 2～3mm, then on prefabricated composite plate once more the explosive welding aluminium sheet increase the thickness of aluminium composite bed, the employed aluminum steel conducting block of electrolytic aluminium is produced with this explosion weld process.And often also to adopt similar method to carry out explosive welding for magnesium, lead, tin and alloy thereof, select intermediate metal to carry out the subsequent explosion welding.The subsequent explosion welding has increased the explosive welding number of times, causes the explosive welding complex proceduresization, and processing output is descended greatly, also causes increasing greatly of production cost.
Summary of the invention
The objective of the invention is: a kind of method of an explosive welding low-melting-point metal composite plate is provided, avoids " superfusion " cracking problem, reduce the explosive welding cost, enhance productivity; Simultaneously, increase the explosive welding parameter window indirectly, reduce the welding difficulty, improve the lumber recovery of product.
Technical scheme of the present invention is, a kind of explosion welding method of low-melting-point metal composite plate: be between low-melting-point metal cladding plate 2 and substrate 4, to be furnished with transition metal thin plate 3, adopt once blast, welding forms the low-melting-point metal composite plate, transition metal thin plate 3 thickness are 0.1～3mm, transition metal thin plate 3 materials are iron, nickel, titanium, copper and alloy thereof, and transition metal thin plate 3 thickness are preferably between 0.2～1.5mm.Low-melting-point metal cladding plate 2 is aluminium, magnesium, lead, tin and alloy thereof, and transition metal thin plate 3 is materials of the same race with substrate 4.
Between basic cladding plate, directly arrange one deck and the good metal sheet of substrate compatibility, adopts an explosive welding to form the three ply board material and weld, thus " superfusion " problem during solution explosive welding low-melting-point metal.Its principle is: when explosive welding, the high speed angular impact takes place between the basic cladding plate, produce metal jet, and to follow certain heat deposition be the key that forms interfacial weld.And the size of interface deposits heat is directly proportional with basic cladding plate thickness, and when basic cladding plate thickness increased, the heat that weld interface deposited also increased thereupon; When the thickness of basic cladding plate reaches certain value, the heat that weld interface deposited is too much, will cause the transition fusing at interface, cause EXPLOSIVE WELDING INTERFACE to form thicker alloy-layer, intensity descends, cause cracking even, " superfusion " of explosive welding that Here it is ftractureed, and is also referred to as the upper limit of explosive welding parameter.For aluminium, magnesium, lead, tin class low-melting alloy, because alloy melting point is lower, the explosive welding upper limit is lower, then just easier appearance of " superfusion " cracking.The present invention arranges one deck and the good metal sheet of substrate compatibility between basic cladding plate, when explosive welding, the low-melting alloy cladding plate can at first bump against with this metal sheet, produce explosive welding, because metal sheet is very thin, deposits heat is less on the EXPLOSIVE WELDING INTERFACE between it and low-melting alloy cladding plate, and this has just improved the welding upper limit greatly.And the coating of following low-melting alloy and metal sheet formation can form explosive welding with thick substrate, bigger welding energy can be deposited on the interface of metal sheet and thick substrate, so, just can form good welding as long as the explosive welding compatibility of metal sheet and substrate is better.Therefore, when the explosive welding low-melting alloy, the optic placode material can select for use refractory metals such as steel, copper, titanium, nickel as the thin plate transition zone, also can select for use thin plate with substrate material of the same race as transition zone; The thickness of thin plate transition zone is unsuitable blocked up and thin excessively, and blocked up not having improved the purpose of welding the upper limit, crosses to approach then to be unsuitable for technological operation, and the thickness of thin plate transition zone can be preferably between 0.2～1.5mm at 0.1～3mm.
Advantage of the present invention is: 1) can use an explosive welding to make the low-melting alloy composite plate of thick coating, reduce the explosive welding cost, enhance productivity; 2) because this method can be selected different middle transition plates according to the different instructions for uses of composite plate, has good combination flexibility; 3) another advantage of this method is the middle transition plate that can adopt with substrate material of the same race, does not have the composite plate of the third material in order to manufacturing, when making conducing composite material such as aluminum steel, aluminum bronze, interface resistance is increased; 4) because the EXPLOSIVE WELDING INTERFACE deposits heat is very little, can obtain high-quality compound interface; 5) because the explosive welding upper limit is improved greatly, but the welding parameter scope is increased, reduce the explosive welding difficulty, greatly the explosive welding lumber recovery.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is an explosive welding schematic diagram of the present invention.
Among the figure, 1. explosive, 2. low-melting-point metal cladding plate, 3. transition metal thin plate, 4. substrate, 5. upper strata frame height, 6. lower floor's frame height, 7. detonation products.
The specific embodiment
Carry out the explosive welding of aluminum steel composite plate by the accompanying drawing layout.The thickness of L2 fine aluminium coating 2 is 29mm, and middle transition thin plate layer 3 adopts the 1mm general steel plate, and substrate 4 is the 40mm common carbon steel board.Explosive 1 uses the thick granular ammonium nitrate-fuel oil mixture of 40mm, and density is 0.85gcm
-3, adjust explosion velocity at 2100～2300ms
-1, upper strata frame high 5 is 8mm, and lower floor's frame high 6 is 2mm, and explosive welding is carried out the tensile strength check after cut sample, and the interface is in conjunction with firm, and fracture appears at the aluminium side, and interface tensile strength is greater than 83MPa.The explosive welding that does not have transition sheet metal 3 in contrast, the basic cladding plate in blast back flicks fully, fails to form welding.
Press the explosive welding parameter of embodiment 1, change middle transition thin plate 3 copper plate of 1.5mm into, carry out the boundary strength inspection after the explosive welding, fracture appears at the aluminium side, and interface tensile strength is greater than 83MPa.
Press the explosive welding parameter of embodiment 1, change middle transition thin plate 3 common carbon steel board of 0.5mm into, carry out the boundary strength inspection after the explosive welding, fracture appears at the aluminium side, and interface tensile strength is greater than 83MPa.
Carry out the explosive welding of plumbous titanium composite plate by the accompanying drawing layout.The thickness of pure plumbous coating 2 is 5mm, and middle transition thin plate layer 3 adopts the 0.1mm pure titanium foil, and substrate 4 is the pure titanium plate of 6mm.Explosive 1 uses the thick powdered ammonium nitrate-fuel oil explosive of 40mm, and density is 0.7gcm
-3, adjust explosion velocity at 1800～2000ms
-1, upper strata frame high 5 is 9.5mm, and lower floor's frame high 6 is 1mm, carries out the interface peel test after the explosive welding, and the interface is in conjunction with firm, and fracture appears at plumbous side.The explosive welding that does not have transition titanium foil 3 in contrast, the basic cladding plate in blast back flicks fully, fails to form welding.
Claims (5)
1. the explosion welding method of a low-melting-point metal composite plate, it is characterized in that, between low-melting-point metal cladding plate (2) and substrate (4), be furnished with transition metal thin plate (3), adopt once blast, welding forms the low-melting-point metal composite plate, and transition metal thin plate (3) thickness is 0.1～3mm.
2. the explosion welding method of a kind of low-melting-point metal composite plate according to claim 1 is characterized in that, described transition metal thin plate (3) material is iron, nickel, titanium, copper and alloy thereof.
3. the explosion welding method of a kind of low-melting-point metal composite plate according to claim 1 is characterized in that, described transition metal thin plate (3) thickness is 0.2～1.5mm.
4. the explosion welding method of a kind of low-melting-point metal composite plate according to claim 1 is characterized in that, described low-melting-point metal cladding plate (2) is aluminium, magnesium, lead, tin and alloy thereof.
5. according to the explosion welding method of claim (1), (2) or (3) described a kind of low-melting-point metal composite plate, it is characterized in that described transition metal thin plate (3) and substrate (4) are materials of the same race.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200410050359 CN1586785A (en) | 2004-08-31 | 2004-08-31 | Explosion welding method for low melting point metal composite plate |
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| CN 200410050359 CN1586785A (en) | 2004-08-31 | 2004-08-31 | Explosion welding method for low melting point metal composite plate |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992345A (en) * | 2010-08-26 | 2011-03-30 | 中国兵器工业第五二研究所 | Compound preparation method of aluminum alloy and magnesium alloy laminated plate |
| CN102059445A (en) * | 2010-12-17 | 2011-05-18 | 洛阳双瑞金属复合材料有限公司 | Explosive welding method for large-area lead-steel composite board |
| CN102198493A (en) * | 2010-03-22 | 2011-09-28 | 大连大山结晶器有限公司 | Method for manufacturing slab continuous casting mould |
| CN102814586A (en) * | 2012-08-02 | 2012-12-12 | 洛阳双瑞金属复合材料有限公司 | Method for manufacturing large and thick rare precious metal explosion-clad steel plate |
| CN104526151A (en) * | 2014-12-02 | 2015-04-22 | 太原理工大学 | Explosive welding forming method for magnesia-alumina-titanium alloy composite board |
| CN104859218A (en) * | 2015-04-21 | 2015-08-26 | 杜双双 | Thin-coat metal composite plate and production method thereof |
| CN105196640A (en) * | 2015-09-16 | 2015-12-30 | 武汉钢铁(集团)公司 | Preparation method for metal composite plate |
| CN106825899A (en) * | 2017-04-07 | 2017-06-13 | 太原理工大学 | A kind of explosive welding forming method of magnesium alloy/stainless steel clad plate |
| CN108788439A (en) * | 2018-06-15 | 2018-11-13 | 中国矿业大学 | A kind of explosion welding method of lead zinc stainless steel multilayer radiation protection composite board |
-
2004
- 2004-08-31 CN CN 200410050359 patent/CN1586785A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198493A (en) * | 2010-03-22 | 2011-09-28 | 大连大山结晶器有限公司 | Method for manufacturing slab continuous casting mould |
| CN101992345A (en) * | 2010-08-26 | 2011-03-30 | 中国兵器工业第五二研究所 | Compound preparation method of aluminum alloy and magnesium alloy laminated plate |
| CN101992345B (en) * | 2010-08-26 | 2014-04-02 | 中国兵器工业第五二研究所 | Compound preparation method of aluminum alloy and magnesium alloy laminated plate |
| CN102059445A (en) * | 2010-12-17 | 2011-05-18 | 洛阳双瑞金属复合材料有限公司 | Explosive welding method for large-area lead-steel composite board |
| CN102814586A (en) * | 2012-08-02 | 2012-12-12 | 洛阳双瑞金属复合材料有限公司 | Method for manufacturing large and thick rare precious metal explosion-clad steel plate |
| CN102814586B (en) * | 2012-08-02 | 2014-08-13 | 洛阳双瑞金属复合材料有限公司 | Method for manufacturing large and thick rare precious metal explosion-clad steel plate |
| CN104526151A (en) * | 2014-12-02 | 2015-04-22 | 太原理工大学 | Explosive welding forming method for magnesia-alumina-titanium alloy composite board |
| CN104859218A (en) * | 2015-04-21 | 2015-08-26 | 杜双双 | Thin-coat metal composite plate and production method thereof |
| CN105196640A (en) * | 2015-09-16 | 2015-12-30 | 武汉钢铁(集团)公司 | Preparation method for metal composite plate |
| CN106825899A (en) * | 2017-04-07 | 2017-06-13 | 太原理工大学 | A kind of explosive welding forming method of magnesium alloy/stainless steel clad plate |
| CN108788439A (en) * | 2018-06-15 | 2018-11-13 | 中国矿业大学 | A kind of explosion welding method of lead zinc stainless steel multilayer radiation protection composite board |
| CN108788439B (en) * | 2018-06-15 | 2021-01-29 | 中国矿业大学 | Explosive welding method for lead-zinc stainless steel multilayer radiation-proof composite board |
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