CN100493808C - Explosion welding repairing method of infusible rare metal composite board - Google Patents
Explosion welding repairing method of infusible rare metal composite board Download PDFInfo
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- CN100493808C CN100493808C CNB2007101308433A CN200710130843A CN100493808C CN 100493808 C CN100493808 C CN 100493808C CN B2007101308433 A CNB2007101308433 A CN B2007101308433A CN 200710130843 A CN200710130843 A CN 200710130843A CN 100493808 C CN100493808 C CN 100493808C
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Abstract
An explode welding repairing method which is hard to dilute metal compound board, firstly, the thickness of hard-diluting metal board is larger than the original board material by 0.5 to 1mm, the area of board material is larger than a defect zone by 20 to 60 mm2; secondly, proceed fine polishing to the compound board at the position under epair; thirdly, put rare metals on the surface under epair, the compound board under epair is made as the lower layer of base board; fourthly, the rare metal board and a placode under epair, the enlarged supporting gas between the two boards adopts edge supporting, the gap is of 7 to 10mm and laid in parallel; fifthly, the rare metal board surface after protecting is distributed with explode evenly, the protecting layer uses lubricate resin adding thinner, the thickness of the protecting layer equals to 0.5 to 1mm; sixthly, the size of the fire point is controlled below the diameter of 15mm; seventhly, after exploding compound, the invention is level to the main material after heat process, flattening and repairing and abrasion of the connection edge.
Description
Technical field
The present invention relates to the reparation and the preparation of a series of metal composite boards, especially repair defective composite metal plate, belong to composite metal plate and make the field with the blast complex method.
Background technology
Composite metal plate is widely used in industries such as oil, chemical industry, pharmacy, boats and ships, electric power, metallurgy at present, continuous development along with material science and equipment manufacturing technology, just more and more use infusible uncommon metal composite board in the deep-etching equipment in the process units such as acetic acid, nitric acid, hydrochloric acid, urea, hydrogen peroxide, polyformaldehyde and haloflex, this series composite plate has very strong decay resistance and very high economy.This series composite plate is because the plied timber price is higher, in case the defective that the equipment that influences uses appears in material in composite metal plate manufacturing and use, reparation will be a very big difficult problem, probably because of a slight defective causes composite plate or equipment scrapping, because infusibility rare (comprising precious metal and the alloy) metal and the ordinary steel overwhelming majority can not carry out repair by welding with common welding method.
Therefore, under the prerequisite of service life that guarantees not reduce composite metal plate and performance, adopt the method for explosive welding to repair the advantage that has not only made full use of explosive welding, but also greatly reduce maintenance cost, saved and used material.
Summary of the invention
The present invention seeks to, address the above problem, as the energy, repair infusible uncommon metal composite board, to satisfy the needs of this series metal composite plate in manufacturing and use by the method for explosive welding with explosive.
Technical scheme of the present invention is: the explosion welding repair method of infusible uncommon metal composite board, and 1, earlier prepare the refractory metal plate thickness and be slightly larger than former sheet material 0.5-1mm, sheet material is greater than defect area 40mm; 2, then the composite surface at this refractory metal plate compound plate and place to be repaired being carried out finishing polish handles; 3, the rare metal plate is placed on above the plate surface to be repaired, composite plate to be repaired is as a following laminar substrate, and 4, the explosive welding reparation of infusible uncommon metal composite board, the thickness of rare metal plate is 1.5-16mm, substrate is the basic unit of composite plate, thick 8-100mm; 5, at first supporting the gap between rare metal plate and substrate two plates to be repaired strengthens and adopts the edge to support, gap 7-10mm, parallel placement, compound plate be greater than defect area 20mm, to satisfy the whole average needs of the stressed distribution of sheet material, guarantees that final repairing area once welds to finish; 6, rare metal plate surface is protected the back and is evenly arranged rock explosive, and overcoat adds diluent with lubricating grease, overcoat thickness=0.5-1mm.The main body explosive is especially selected the 2# rock explosive for use, explosion velocity 2200～3500mm/s, dose 3.9～4.1g/cm
27, the selection of fire point position will help the air-flow discharge (fire point especially is positioned at the plate center) between binder course, and the size of fire point is controlled at below the φ 15mm; 8, blast compound after, carry out reconditioning through heat treatment, leveling, connection edge to concordant with mother metal.
Adopt support pad to install between rare metal plate (comprising sheet materials such as alloy) and the basic unit's carbon steel sheet, put explosive on upper berth, rare metal plate surface, finally make it to realize large-area continuous welding, satisfy ASTM B898 " activity and refractory metal composite plate standard ", GB/T8547-2006 " titanium-steel composite board ", GB/T8546-1997 " titanium-stainless steel clad plate ", by can making the applying rate reach 99% after the explosive welding one-shot forming, minimum shear strength τ
b〉=196Mpa.
The explosive welding of the explosion welding repair method of infusible uncommon metal composite board of the present invention is the top layer of rare metal as load surface, and the composite plate steel plate is as other one deck of bearing load.Explosive welding is to be the energy with the explosive, in the moment of igniting, explosive potential chemical energy, promptly be converted into luminous energy, acoustic energy, heat energy and mechanical energy.Exploding compound is exactly heat energy and the mechanical energy of utilizing explosive to discharge, under the effect of high-voltage pulse load, make compound plate under the effect of explosive energy successively to substrate accelerated motion, and form certain bending angle, form interatomic combination between base, compound plate.And in type composite plate, carrying out the explosive welding reparation, the jet jet exhaust of explosive welding moment is the most difficult, so static parameter must adopt big gap, little dose.
Description of drawings
The schematic diagram that Fig. 1 explodes and installs for the present invention,
Detonating explosive 1,2, No. 2 rock explosives 3 of detonator, overcoat 4, zirconium plate (or alloy sheets) 5, support chip 6, rejected region 7, zirconium steel clad steel plate 8, ground 9 among the figure
The specific embodiment
Specify embodiments of the present invention below:
The explosion welding repair method of infusible uncommon metal composite board is: when installing at the scene with the rare metal clad steel plate as a following laminar substrate, the rare metal plate is placed on above the rejected region, at first support the gap between two plates and strengthen employing 8mm, the edge supports gap, parallel placement, compound plate greater than defect area 20mm, to satisfy the whole average needs of the stressed distribution of sheet material, guaranteeing that final repairing area once welds finishes, and for fear of explosive meeting burn compound plate face in the blast recombination process, overcoat will be thickeied 0.5-1mm.The thickness of rare metal plate is at 1.5-16mm, and substrate thickness is the 8-100mm steel plate, and the main body explosive is selected the 2# rock explosive for use, explosion velocity 2200～3500mm/s.Rare metal plate surface is protected the back and is evenly arranged the 2# rock explosive, and fire point is placed on rare metal compound plate center (see figure 1).Explode compound after, concordant through heat treatment, leveling, the reconditioning of connection edge with mother metal, press ASTM B898 " activity and refractory metal composite plate standard ", GB/T8547-2006 " titanium-steel composite board ", GB/T8546-1997 " titanium-stainless steel clad plate ", after explosive welding-inferior moulding, can make minimum shear strength τ
b〉=196Mpa.
The explosive welding reparation of uncommon metal composite board is after reconditioning is concordant with mother metal, carry out Non-Destructive Testing, restoring area edge penetration (UT) detects, reach JB4730.5-2005 " infiltration of bearing device Non-Destructive Testing the 5th part detects " I level requirement, the applying rate reaches 99%, satisfies the relevant criterion requirement of material and facility.
The compound relevant criterion that all reaches of titanium plate, zirconium plate or same tool steel plate that the infusible uncommon metal composite board of the above embodiment of the present invention adopts.
Claims (2)
1, the explosion welding repair method of infusible uncommon metal composite board is characterized in that 1), the thickness of preparing refractory metal plate compound plate is greater than former sheet material 0.5-1mm, described compound plate area is greater than defect area 20-60mm
22), the composite surface at this refractory metal plate compound plate and place to be repaired being carried out finishing polish handles; 3), described compound plate is placed on above the composite surface to be repaired, composite plate to be repaired is as a following laminar substrate; 4), support the gap between described compound plate and substrate two plates to be repaired and strengthen, adopt the edge to support gap 7-10mm, parallel placement; 5), explosive is evenly arranged after adding overcoat in rare metal plate compound plate surface, overcoat adds diluent with lubricating grease, overcoat thickness=0.5-1mm, 6), the size of fire point is controlled at below the φ 15mm, fire point is positioned at refractory metal plate compound plate center, explosion velocity 2200～3500mm/s, dose 3.9～4.1g/cm
2, adopt the 2# rock explosive; 7), blast compound after, concordant through heat treatment, leveling, the reconditioning of connection edge with substrate.
2, the explosion welding repair method of infusible uncommon metal composite board according to claim 1 is characterized in that the thickness 1.5-16mm of rare metal plate compound plate, and the groundwork thickness of described composite plate is 8-100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101308433A CN100493808C (en) | 2007-08-16 | 2007-08-16 | Explosion welding repairing method of infusible rare metal composite board |
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| CNB2007101308433A CN100493808C (en) | 2007-08-16 | 2007-08-16 | Explosion welding repairing method of infusible rare metal composite board |
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| CN101108444A CN101108444A (en) | 2008-01-23 |
| CN100493808C true CN100493808C (en) | 2009-06-03 |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837511B (en) * | 2010-05-19 | 2012-04-25 | 南京三邦金属复合材料有限公司 | Explosive welding method of SAF2507 alloy composite 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 |
| CN102794607B (en) * | 2012-08-10 | 2014-12-31 | 西安天力金属复合材料有限公司 | Manufacturing method for large-scale tantalum/zirconium/titanium/steel compound plate |
| 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 |
| CN103586574B (en) * | 2013-10-16 | 2015-10-21 | 太原理工大学 | A kind of explosive welding forming method of magnadure composite plate |
| 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 |
| CN103658972B (en) * | 2013-12-21 | 2016-01-13 | 西安天力金属复合材料有限公司 | The surface protecting material of compound plate and application in a kind of explosive welding |
| CN103909339B (en) * | 2014-03-24 | 2016-01-20 | 陕西科技大学 | The explosive welding (EW) shaped device of titanium material and ordinary low-alloy steel compound end socket |
| CN104588862B (en) * | 2014-12-24 | 2017-01-25 | 洛阳双瑞金属复合材料有限公司 | Explosive welding method for superaustenitic stainless steel and chromium-molybdenum steel |
| CN105397265A (en) * | 2015-11-18 | 2016-03-16 | 南京三邦新材料科技有限公司 | Large-area silver-steel explosive welding composite steel structure and preparation method thereof |
| CN105643127B (en) * | 2016-02-29 | 2017-12-22 | 西安天力金属复合材料有限公司 | A kind of preparation method of polysilicon refining equipment large format silver/steel composite board |
| US11110539B2 (en) * | 2016-08-05 | 2021-09-07 | Honda Motor Co., Ltd. | Methods and joints for welding sheets of dissimilar materials |
| CN108145304A (en) * | 2017-12-21 | 2018-06-12 | 安徽宝泰特种材料有限公司 | The restorative procedure of titanium-steel explosive clad plate local delamination |
| CN112589253A (en) * | 2020-12-14 | 2021-04-02 | 安徽宝泰特种材料有限公司 | Explosion method for solving problem of non-fusion of medium-thickness tube plate gap |
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Application publication date: 20080123 Assignee: Nanjing Duble Metal Equipment Engineering Co., Ltd. Assignor: Nanjing Sanbom Metal Clad Material Co., Ltd. Contract record no.: 2013320000122 Denomination of invention: Explosion welding repair method of infusible uncommon metal composite board Granted publication date: 20090603 License type: Exclusive License Record date: 20130315 |
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Address after: Jiangning District of Nanjing City, Jiangsu province 211155 Wang Zhen Heng Cloud Road No. 248 Patentee after: Nanjing three novel material Science and Technology Ltd. of nation Address before: Jiangning District of Nanjing City, Jiangsu province 211155 Wang Zhen Heng Cloud Road No. 248 Patentee before: Nanjing Sanbom Metal Clad Material Co., Ltd. |
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