CN204712552U - C4 alloy sheets and steel plate explosive clad plate - Google Patents
C4 alloy sheets and steel plate explosive clad plate Download PDFInfo
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- CN204712552U CN204712552U CN201320471212.9U CN201320471212U CN204712552U CN 204712552 U CN204712552 U CN 204712552U CN 201320471212 U CN201320471212 U CN 201320471212U CN 204712552 U CN204712552 U CN 204712552U
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Abstract
C4 alloy sheets and steel plate explosive clad plate, be made up of C4 alloy sheets and steel plate Explosion composite, and C4 alloy sheets thickness is 3-8mm, and steel plate thickness is 20-100mm.The length of steel plate and be widely of a size of 10000mm × 2500mm, the length of C4 alloy sheets and the length of the corresponding steel plate of wide difference and wide 95-99%.The area of the utility model C4 alloy sheets is slightly little, and the C4 alloy sheets making the whole area of shaping composite plate is all effective, and edge also can better compound.And C4 alloy and steel Explosion composite laminating rate and shear strength all meet " Part II of NB/T47002-2009 pressure vessel Explosive Welding Composite Plates: nickel-steel composite board " standard.
Description
Technical field
The utility model produces metallic explosive composite plate with explosion welding method, and it belongs to composite plate and manufactures field.Especially C4 alloy sheets and steel plate explosive clad plate.
Background technology
C4 alloy is the standard model of a kind of austenite low-carbon nickel-molybdenum-evanohm, and this alloy composition main feature is low-carbon (LC), silicon, iron, tungsten, and the constituent content of high Ni, Mo makes C4 alloy improve the decay resistance corroded chloride stress cracking.Such chemical composition makes it show fabulous stability when 650-1040 DEG C, improves the ability of anti intercrystalline corrosion, can avoid sword line corrosion susceptibility and weld heat-affected zone corrosion under suitable manufacturing condition.Be mainly used in flue gas desulphurization system, pickling and acid regeneration factory, acetic acid and agricultural chemicals production, titanium dioxide production (chlorine method), metallide etc.Therefore the application in recent years in chemical industry, oil, the energy and environment-friendly engineering also increases gradually.But at home owing to also cannot produce at present by the restriction of material and smelting level, so all rely on import, therefore under guarantee does not reduce the prerequisite of service life of equipment and performance, adopt C4 alloy-steel explosive clad plate, not only take full advantage of properties of materials---by the cladding of C4 alloy as contact corrosion medium, by the basic unit of steel as bearing load, but also greatly reduce the cost of equipment, saved and used material.
Domestic C4 alloy-steel explosive clad plate R&D work is because the restriction by plied timber is (because of the restriction by domestic melting technique, so far still C4 sheet alloy cannot be produced), until the beginning of this century just starts the R&D work carrying out C4 alloy-steel explosive clad plate from imported from America C4 sheet alloy, find that stainless intensity that C4 alloy material is more general, case hardness are much higher through a large amount of tests, and along with domestic chemical industrial expansion, device fabrication is required also increasing for single plate area, and this brings very large difficulty to Explosion composite.Due to above various reasons, so domestic use C4 alloy composite plate is considerably less, even if use also is rely on from the U.S. or Japanese import, not only expensive, and the delivery cycle is very long, be unfavorable for applying of domestic C4 alloy-steel Explosion composite board device like this, be more unfavorable for the development of national industry.Therefore necessary autonomous innovation, develops the manufacture craft of large area C4 alloy-steel explosive clad plate, and this will play significance to reduction device fabrication cost, shortening device fabrication cycle.
Utility model content
The problem that the utility model solves is, using explosive as the energy, produces C4 alloy-steel large area composite plate by the method for explosive welding, to realize the requirement of domesticizing, meets the needs of the industry developments such as China's chemical industry.
The technical solution of the utility model is: C4 alloy sheets and steel plate explosive clad plate, is made up of C4 alloy sheets and steel plate Explosion composite, and C4 alloy sheets thickness is 3-8mm, and steel plate thickness is 20-100mm.
Steel plate and C4 alloy sheets length and wide size reach 10000mm × 2500mm.The length of C4 alloy sheets and the length of the corresponding steel plate of wide difference and wide 95-99%.
The area of C4 alloy sheets is slightly little, and the C4 alloy sheets making the whole area of shaping composite plate is all effective, and edge also can better compound.
Preparation method is: after adopting between cladding C4 alloy and Substrate sheet (carbon steel sheet) that support pad is installed, explosive is laid and completing on C4 alloy surface alongst in the middle of the higher explosive of laid explosion velocity, finally make it to realize large-area continuous welding, meet the requirement of " NB/T47002-2009 pressure vessel Explosive Welding Composite Plates Part II: nickel-steel composite board " standard and ASME SA-265 " nickel and nickel-base alloys clad steel plate " standard, laminating rate can be made to reach more than 100% after carrying out repair welding to fire point after Explosion composite, minimum shear strength T
b>=210Mpa.
The Explosion composite of C4 alloy-steel explosive clad plate is using C4 alloy sheets one deck as contact corrosion medium, and steel plate is as other one deck of bearing load.Due to compound plate in Explosion composite process under the effect of explosive energy successively to substrate accelerated motion, and form certain bending angle, the effective combination between base, compound plate could be formed.And C4 alloy strength is higher, form bending angle more difficult in Explosion composite process, therefore static parameter must adopt wide arc gap, small pit goaf.But facts have proved that to adopt wide arc gap, small pit goaf not obvious for some overlength (length is greater than 6M) effect.Because blast process can produce jet, thus self-cleaning is carried out to base, compound plate surface, fresh metal is combined, but a plate excessive rear jet material gets more and more, behind two ends, jet material just can not be got rid of completely, part streams is just restrained in land, causes two ends poor bonding strength or even does not fit.Therefore adopt line detonation way, along the long side direction explosive that lay explosion velocity is higher continuously on C4 alloy, to change the direction of jet motion, discharge to broadside, shorten the distance that jet moves in land, avoid jet to restrain in land.Edge region supports gap when base, compound plate installation supporting gap between C4 alloy and steel is slightly larger than centre, and the jet so also for arriving edge provides more unobstructed passage, and two ends jet also can be avoided to pile up simultaneously.So adopt end low-angle to install and line ignition method Explosion composite has been produced plate width and is of a size of 13500mm × 3000mm(L × W) C4 alloy-steel explosive clad plate.
The utility model beneficial effect is: the area of C4 alloy sheets is slightly little, and the C4 alloy sheets making the whole area of shaping composite plate is all effective, and edge also can better compound.
And large-area C4 alloy and steel Explosion composite laminating rate and shear strength are all met to the requirement of " NB/T47002-2009 pressure vessel Explosive Welding Composite Plates Part II: nickel-steel composite board " standard and ASME SA-265 " nickel and nickel-base alloys clad steel plate " standard, meet the needs of the industry developments such as domestic chemical industry.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the utility model blast is installed.
Detailed description of the invention
Illustrate embodiment of the present utility model below.
In figure, detonator 1, explosive 2, protective layer 3, C4 alloy sheets 4, back-up block 5, steel plate (substrate) 6, basis 7.Actual finished product is the compound of C4 alloy sheets 4 and steel plate (substrate) 6.
The Explosion composite of large area C4 alloy-steel plate is above C4 alloy sheets being placed on when installing at the scene; steel plate is as a laminar substrate below; first between two plates, supporting gap strengthens and adopts 10mm; region supports gap, two ends will slightly large employing 12mm than centre; to meet the needs that low-angle is installed; and to burn in Explosion composite process greatly compound plate face in order to avoid dose, protective layer also will thicken.C4 alloy sheets thickness is δ 4mm, plate width size is 13500mm × 3000mm(L × W), substrate thickness is δ 50mm Q345R steel plate, and plate width is of a size of 13500mm × 3000mm(L × W), 2# rock emulsion explosive selected by main body explosive, explosion velocity >=3200mm/s.C4 alloy sheets surface is evenly arranged 2# rock emulsion explosive after being protected; in the middle of width, arrange the 1# rock emulsion explosive of a high explosion velocity along length, its explosion velocity >=4500mm/s, medicinal strip thickness is concordant with main body explosive; width is 20mm, and fire point is placed on C4 alloy compound plate center (see figure 1).After Explosion composite, through heat treatment, leveling, by " NB/T47002-2009 pressure vessel Explosive Welding Composite Plates Part II: nickel-steel composite board " standard and ASME SA-265 " nickel and nickel-base alloys clad steel plate " standard, laminating rate and shear strength are detected after fire point repair welding reconditioning, laminating rate is 100%, shear strength T
b>=210Mpa.
1, the utility model provides the explosion welding method of C4 alloy large area clad steel plate.
2, the utility model has taken into account the good corrosion resistance of C4 alloy and the good feature of armor plate strength respectively, and greatly reduces the manufacturing expense of the energy and equipment.
The utility model comprises the above explanation of embodiment, is not to limit the utility model, and simple improvement does not exceed protection domain of the present utility model.
Claims (1)
1.C4 alloy sheets and steel plate explosive clad plate, it is characterized in that being made up of C4 alloy sheets and steel plate Explosion composite, C4 alloy sheets thickness is 3-8mm, and steel plate thickness is 20-100mm; The length of steel plate and be widely of a size of 10000mm × 2500mm, the length of C4 alloy sheets and the length of the corresponding steel plate of wide difference and wide 95-99%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471212.9U CN204712552U (en) | 2013-08-02 | 2013-08-02 | C4 alloy sheets and steel plate explosive clad plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471212.9U CN204712552U (en) | 2013-08-02 | 2013-08-02 | C4 alloy sheets and steel plate explosive clad plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204712552U true CN204712552U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320471212.9U Expired - Fee Related CN204712552U (en) | 2013-08-02 | 2013-08-02 | C4 alloy sheets and steel plate explosive clad plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN204712552U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345249A (en) * | 2015-12-08 | 2016-02-24 | 安徽宝泰特种材料有限公司 | Dual-phase steel/titanium composite board explosive welding forming method |
| CN106624328A (en) * | 2015-11-03 | 2017-05-10 | 南京和畅新材料有限公司 | Method for explosive welding for niobium-steel compound plate |
-
2013
- 2013-08-02 CN CN201320471212.9U patent/CN204712552U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624328A (en) * | 2015-11-03 | 2017-05-10 | 南京和畅新材料有限公司 | Method for explosive welding for niobium-steel compound plate |
| CN105345249A (en) * | 2015-12-08 | 2016-02-24 | 安徽宝泰特种材料有限公司 | Dual-phase steel/titanium composite board explosive welding forming method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20170802 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |