CN203437811U - Explosion plate combining N06455 alloy steel plate and steel plate - Google Patents

Abstract

Provided is an explosion plate combining an N06455 alloy steel plate and a steel plate. The thickness of the N06455 alloy steel plate is 3-20mm, the thickness of the steel plate is 20-100mm, the length of the N06455 alloy steel plate and the length of the steel plate are respectively 3-8m, and the width of the N06455 alloy steel plate and the width of the steel plate are respectively 1-3m. The explosive cladding fitting rate and the shearing strength of N06455 alloy and steel both meet the requirements of the standard <NB/T47002-2009 the second part of explosion welding composite boards for pressure vessels: nickel-steel composite boards> and the standard of 'AEME SA-265 < nickel and nickel base alloy composite steel boards>'.

Description

The compound blast plate of N06455 alloy-steel plate and steel plate

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.

Background technology

N06455 alloy is 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 N06455 alloy improve the decay resistance to chloride stress cracking corrosion.Such chemical composition makes it in the time of 650-1040 ℃, 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 in recent years 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 in assurance, do not reduce under the prerequisite of service life of equipment and performance, adopt N06455 alloy-steel explosive clad plate, not only take full advantage of properties of materials---the multiple layer by N06455 alloy as contact corrosion medium, basic unit by steel as bearing load, but also greatly reduce the cost of equipment, saved and used material.

The R&D work of domestic N06455 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 N06455 sheet alloy), until just start to carry out from imported from America N06455 sheet alloy the R&D work of N06455 alloy-steel explosive clad plate the beginning of this century, through a large amount of tests, find the more general stainless intensity of N06455 alloy material, 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 N06455 alloy composite plate is considerably less, even if use, be also to rely on from the U.S. or Japanese import, not only expensive, and the delivery cycle is very long, be unfavorable for like this applying of domestic N06455 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 N06455 alloy-steel explosive clad plate, this to reducing device fabrication cost, shorten the device fabrication cycle and will play significance.

Utility model content

The problem that the utility model solves is, usings explosive as the energy, by the method for explosive welding, produces N06455 alloy-steel large area composite plate, to realize the requirement of production domesticization, meets the needs of the industry developments such as China's chemical industry.

The technical solution of the utility model is: the compound blast plate of N06455 alloy-steel plate and steel plate, and the thickness of N06455 alloy-steel plate is 3-20mm, and steel plate thickness is 20-100mm, and the length of N06455 alloy-steel plate and steel plate is 3～8 meters, wide 1～3 meter.

Between multiple layer N06455 alloy sheets and Substrate sheet (carbon steel sheet), adopt support pad to install, explosive is laid complete after on N06455 alloy surface alongst in the middle of laid explosion velocity higher explosive, finally make it to realize large-area continuous welding, meet < < NB/T47002-2009 pressure vessel Explosive Welding Composite Plates second portion: the requirement of nickel-steel composite board > > standard and ASME SA-265 < < nickel and nickel-base alloys clad steel plate > > standard, by exploding, compoundly rear fire point is carried out can making laminating rate reach more than 100% after repair welding, minimum shear strength T _b>=210Mpa.

The blast of N06455 alloy-steel explosive clad plate is compound is the one deck using N06455 alloy sheets 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 N06455 alloy strength is higher, in blast recombination process, form bending angle more difficult, so 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, to jet material behind two ends, just can not get 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, on N06455 alloy, along the long side direction higher explosive of lay explosion velocity continuously, to change the direction of jet motion, to broadside, discharge, shortened the distance of jet in land motion, avoid jet to restrain in land.Limit portion region supporting gap when base, compound plate are installed supporting gap between N06455 alloy and steel is slightly larger than centre, so also for arriving the jet of 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 is of a size of 13500mm * 3000mm(L * W) N06455 alloy-steel explosive clad plate.

Explode compound laminating rate and shear strength of the utility model N06455 alloy and steel all meets < < NB/T47002-2009 pressure vessel Explosive Welding Composite Plates second portion: the requirement of nickel-steel composite board > > standard and ASME SA-265 < < nickel and nickel-base alloys clad steel plate > > standard, has met 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.

The specific embodiment

Illustrate embodiment of the present utility model below.In figure, detonator 1,1# rock emulsion explosive 2, protective layer 3, N06455 alloy sheets 4, support chip 5, steel plate Q345R6, ground 7.

The blast of large area N06455 alloy-steel plate is compound is above N06455 alloy sheets 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, understand greatly burn compound plate face in blast recombination process, protective layer also will be thickeied.N06455 alloy sheets 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.N06455 alloy sheets surface is evenly arranged 2# rock emulsion explosive after being protected; in the middle of width, along length, arrange the 1# rock emulsion explosive of a high explosion velocity; its explosion velocity >=4500mm/s; medicinal strip thickness is concordant with main body explosive; width is 20mm, and fire point is placed on N06455 alloy compound plate center (see figure 1).Explode compound after, through heat treatment, leveling, after fire point repair welding reconditioning by < < NB/T47002-2009 pressure vessel Explosive Welding Composite Plates second portion: nickel-steel composite board > > standard and ASME SA-265 < < nickel and nickel-base alloys clad steel plate > > standard detect laminating rate and shear strength, laminating rate is 100%, shear strength T _b>=210Mpa.

1, the utility model provides the explosion welding method of N06455 alloy large area clad steel plate.

2, the utility model has been taken into account respectively corrosion resistance that N06455 alloy is good and the good feature of armor plate strength, and greatly reduces the manufacturing expense of the energy and equipment.

The variation that still can have size aspect of the present utility model, this does not walk out scope of the present utility model.

Claims (1)

1. The compound blast plate of 1.N06455 alloy-steel plate and steel plate, the thickness that it is characterized in that N06455 alloy-steel plate is 3-20mm, and steel plate thickness is 20-100mm, and the length of N06455 alloy-steel plate and steel plate is 3～8 meters, wide 1～3 meter.