CN203831871U - Explosive composite plate with austenite low-carbon nickel molybdenum chromium alloy plate and steel plate - Google Patents
Explosive composite plate with austenite low-carbon nickel molybdenum chromium alloy plate and steel plate Download PDFInfo
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- CN203831871U CN203831871U CN201420220526.6U CN201420220526U CN203831871U CN 203831871 U CN203831871 U CN 203831871U CN 201420220526 U CN201420220526 U CN 201420220526U CN 203831871 U CN203831871 U CN 203831871U
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Abstract
An explosive composite plate with an austenite low-carbon nickel molybdenum chromium alloy plate and a steel plate is formed by combining the austenite low-carbon nickel molybdenum chromium alloy plate and the steel plate in an explosive mode, the thickness of the austenite low-carbon nickel molybdenum chromium alloy plate is 3-8 mm, the thickness of the steel plate is 20-100 mm, the length and the width of the steel plate are 10000 mm and 2500 mm respectively, the periphery edges of the austenite low-carbon nickel molybdenum chromium alloy plate are welded to carbon steel plates, and the width of each carbon steel plate is 3-6 cm. The area of the austenite low-carbon nickel molybdenum chromium alloy plate is small, the whole area of the austenite low-carbon nickel molybdenum chromium alloy plate of the formed composite plate is effective, the edges can be well combined, and the attaching rate and shearing strength of the explosive composite plate with the austenite low-carbon nickel molybdenum chromium alloy plate and the steel plate can meet the standards of 'the second part of the explosive welding composite plate for an NB/T47002-2009 pressure container: a nickel and steel composite plate'.
Description
Technical field
The utility model is to produce metallic explosive composite plate with explosion welding method, and it belongs to composite plate and manufactures field.Especially (C4 alloy sheets) austenite low-carbon nickel molybdenum evanohm plate and steel plate explosive clad plate.
Background technology
Typical C4 alloy is a kind of standard model 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 to chloride stress cracking corrosion.Such chemical composition makes it in the time of 650-1040 DEG C, show fabulous stability, has improved the ability of anti intercrystalline corrosion, can avoid sword line corrosion susceptibility and weld heat-affected zone corrosion under suitable creating conditions.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 chemical industry, oil, the energy and environment-friendly engineering also increases gradually in recent years.But at home because the restriction that is subject to material and smelting level also cannot be produced at present, so all rely on import, therefore do not reduce under the prerequisite of service life of equipment and performance in guarantee, adopt C4 alloy-steel explosive clad plate, not only take full advantage of properties of materials---the multiple layer by C4 alloy as contact corrosion medium, basic unit by steel as bearing load, but also greatly reduce the cost of equipment, save and used material.
The R&D work of domestic C4 alloy-steel explosive clad plate is because being subject to the restriction of plied timber (because being subject to the restriction of domestic melting technique, so far still cannot produce austenite low-carbon nickel molybdenum evanohm sheet material), until just start to carry out the R&D work of C4 alloy-steel explosive clad plate from imported from America austenite low-carbon nickel molybdenum evanohm sheet material the beginning of this century, find the more general stainless intensity of C4 alloy material through a large amount of tests, case hardness is much higher, and along with domestic chemical industrial expansion, device fabrication is required also increasing for single plate area, this gives the compound very large difficulty of bringing of exploding.Due to above various reasons, so domestic use C4 alloy composite plate is considerably less, also be to rely on from the U.S. or Japanese import even if use, not only expensive, and the delivery cycle is very long, be unfavorable for like this applying of domestic C4 alloy-steel explosive clad plate equipment, be more unfavorable for the development of national industry.Therefore must autonomous innovation, develop the manufacture craft of large area C4 alloy-steel explosive clad plate, this to reducing device fabrication cost, shorten the device fabrication cycle and will play significance.Due to the edge effect of explosive clad plate, there is the marginal zone steel substrate of can not fitting in alloy-steel plate, and this part region can not form composite plate, therefore cause waste, because alloy-steel plate needs import, price is high, causes the increase of composite plate unit are cost.
Utility model content
The problem that the utility model solves is, using explosive as the energy, by method production C4 alloy-steel large area composite plate of explosive welding, to realize the requirement of production domesticization, to meet the needs of the industry developments such as China's chemical industry.Alloy sheets compared with small size can make the edge of high Cr austenite stainless steel plate be unlikely to waste, obtain be complete certified products composite plate as much as possible.Solving alloy-steel plate exists marginal zone can not fit steel substrate and the waste of the alloy-steel plate that causes.
The technical solution of the utility model is: austenite low-carbon nickel molybdenum evanohm plate and steel plate explosive clad plate, exploded compound composition by austenite low-carbon nickel molybdenum evanohm plate and steel plate, austenite low-carbon nickel molybdenum evanohm plate thickness is 3-8mm, steel plate thickness is 20-100mm, the length of steel plate and wide 10000mm and the 2500mm of being of a size of, the edge surrounding welding carbon steel sheet of austenite low-carbon nickel molybdenum evanohm plate, its width is 3-6cm.
The area of austenite low-carbon nickel molybdenum evanohm plate is slightly little, makes the austenite low-carbon nickel molybdenum evanohm plate of whole area of the composite plate of moulding all effective, and edge alloy sheets also can be better compound.
Preparation method is: between multiple layer C4 alloy and Substrate sheet (carbon steel sheet), adopt support pad to install, explosive is laid complete after on C4 alloy surface alongst in the middle of laid explosion velocity higher explosive, 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, compoundly rear fire point is carried out can making laminating rate reach more than 100% after repair welding by exploding, minimum shear strength τ
b>=210Mpa.
The blast of C4 alloy-steel explosive clad plate is compound is the one deck using austenite low-carbon nickel molybdenum evanohm plate as contact corrosion medium, and steel plate is as other one deck of bearing load.Due to compound plate in blast recombination process under the effect of explosive energy successively to substrate accelerated motion, and form certain bending angle, could form the effective combination between base, compound plate.And C4 alloy strength is higher, in blast recombination process, form bending angle more difficult, therefore static parameter must adopt large gap, little dose.But facts have proved and adopt large gap, little dose for some overlength (length is greater than 6M) effect not obvious.Because blast process can produce jet, thereby self-cleaning is carried out in base, compound plate surface, make fresh metal combination, but a plate excessive rear jet material is more and more, just can not get rid of completely to jet material behind two ends, part streams is just restrained in land, causes two ends poor bonding strength or even does not fit.Therefore adopt line detonation way, on C4 alloy, along the long side direction higher explosive of lay explosion velocity continuously, to change the direction of jet motion, discharge to broadside, shortened the distance of jet in land motion, avoid jet to restrain in land.Limit portion region supporting gap in the time that base, compound plate are installed supporting gap between C4 alloy and steel is slightly larger than centre, so also for the jet that arrives limit portion provides more unobstructed passage, also can avoid two ends jet to pile up simultaneously.So adopt end low-angle to install and the line ignition method laminating production that once explodes has gone out plate width and be of a size of C4 alloy-steel explosive clad plate of 13500mm × 3000mm (L × W).
The utility model beneficial effect is: the area of austenite low-carbon nickel molybdenum evanohm plate is slightly little, makes the austenite low-carbon nickel molybdenum evanohm plate of whole area of the composite plate of moulding all effective, and edge also can be better compound.
And all 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 for explode compound laminating rate and shear strength of large-area C4 alloy and steel, met the needs of the industry developments such as domestic chemical industry.Overcome the problem of the bad laminating of edge alloy sheets, improved the usable floor area of composite plate.
Brief description of the drawings
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, austenite low-carbon nickel molybdenum evanohm plate 4, carbon steel sheet 5, back-up block 6, steel plate (substrate) 7, basis 8.Actual finished product is the compound of austenite low-carbon nickel molybdenum evanohm plate 4 and steel plate (substrate) 7.
Austenite low-carbon nickel molybdenum evanohm plate and steel plate explosive clad plate, exploded compound composition by austenite low-carbon nickel molybdenum evanohm plate and steel plate, austenite low-carbon nickel molybdenum evanohm plate thickness is 3,5 or 8mm, steel plate thickness is 20,50 or 100mm, the length of steel plate and wide 10000mm and the 2500mm of being of a size of, the edge surrounding welding carbon steel sheet of austenite low-carbon nickel molybdenum evanohm plate, its width is 3-6cm.
Described alloy sheets is less than steel plate edge 1-2cm with the area four limit marginal dimensions identical or alloy sheets of steel plate, is greater than the area of steel plate (substrate) after welding carbon steel sheet.When alloy sheets is less than steel plate edge 1-2cm with the area four limit marginal dimensions identical or alloy sheets of steel plate, the compound part of alloy sheets is all the composite plate of certified products in use, has overcome the defect (existence of overlap) of edge foot quality.
The blast of large area C4 alloy-steel plate is compound is above austenite low-carbon nickel molybdenum evanohm plate being placed on while installing at the scene; steel plate is as a laminar substrate below; first between two plates, supporting gap strengthens and adopts 10mm; two end regions supporting gaps will slightly large employing 12mm than centre; the needs of installing to meet low-angle; and for fear of dose meeting burn compound plate face in blast recombination process greatly, protective layer also will be thickeied.Austenite low-carbon nickel molybdenum evanohm plate thickness is δ 4mm, plate width size is 13500mm × 3000mm (L × W), substrate thickness is δ 50mm Q345R steel plate, plate width is of a size of 13500mm × 3000mm (L × W), main body explosive is selected 2# rock emulsion explosive, explosion velocity >=3200mm/s.Austenite low-carbon nickel molybdenum evanohm plate 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 (seeing Fig. 1).Explode compound after, through heat treatment, leveling, after fire point repair welding reconditioning, 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, laminating rate is 100%, shear strength τ
b>=210Mpa.
1, the utility model provides the explosion welding method of C4 alloy large area clad steel plate.
2, the utility model has been taken into account respectively corrosion resistance that C4 alloy is good and the good feature of armor plate strength, 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. austenite low-carbon nickel molybdenum evanohm plate and steel plate explosive clad plate, it is characterized in that being exploded compound composition by austenite low-carbon nickel molybdenum evanohm plate and steel plate, austenite low-carbon nickel molybdenum evanohm plate thickness is 3-8mm, steel plate thickness is 20-100mm, the length of steel plate and wide 10000mm and the 2500mm of being of a size of, the edge surrounding welding carbon steel sheet of austenite low-carbon nickel molybdenum evanohm plate, its width is 3-6cm; Described austenite low-carbon nickel molybdenum evanohm plate is less than steel plate edge 1-2cm with the area four limit marginal dimensions identical or austenite low-carbon nickel molybdenum evanohm plate of steel plate, is greater than the area of steel plate after welding carbon steel sheet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420220526.6U CN203831871U (en) | 2014-04-30 | 2014-04-30 | Explosive composite plate with austenite low-carbon nickel molybdenum chromium alloy plate and steel plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420220526.6U CN203831871U (en) | 2014-04-30 | 2014-04-30 | Explosive composite plate with austenite low-carbon nickel molybdenum chromium alloy plate and steel plate |
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| CN203831871U true CN203831871U (en) | 2014-09-17 |
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| CN201420220526.6U Expired - Fee Related CN203831871U (en) | 2014-04-30 | 2014-04-30 | Explosive composite plate with austenite low-carbon nickel molybdenum chromium alloy plate and steel plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690411A (en) * | 2015-03-13 | 2015-06-10 | 安徽宝泰特种材料有限公司 | Explosive cladding structure of aluminum-titanium steel composite board and method for preparing aluminum-titanium steel composite board |
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2014
- 2014-04-30 CN CN201420220526.6U patent/CN203831871U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690411A (en) * | 2015-03-13 | 2015-06-10 | 安徽宝泰特种材料有限公司 | Explosive cladding structure of aluminum-titanium steel composite board and method for preparing aluminum-titanium steel composite board |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20190430 |