CN203831868U - Explosive composite plate with NS 312 alloy plate and steel plate - Google Patents

Abstract

An explosive composite plate with an NS 312 alloy plate and a steel plate is formed by combining the NS 312 alloy plate and the steel plate in an explosive mode, the thickness of the NS 312 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, carbon steel plates are welded to the peripheral edges of the NS 312 alloy plate, and the width of each carbon steel plate is 3-6 cm. The area of the NS 312 alloy plate is equal to that of the steel plate or the size of the peripheral edges of the alloy plate is smaller than that of the edges of the steel plate by 1-2 cm, and the area of the NS 312 alloy plate is larger than that of the steel plate (base plate) after being welded to the carbon steel plates. The area of the NS 312 alloy plate is equal to that of the steel plate or the size of the peripheral edges of the alloy plate is smaller than that of the edges of the steel plate by 1-2 cm, so that when the explosive composite plate is used, the parts combined with the NS 312 alloy plate are all qualified composite plates, and the quality defect (existence of trimmings) of the edges is overcome.

Description

NS312 alloy sheets and steel plate explosive clad plate

Technical field

The utility model is to produce metallic explosive composite plate with blast complex method, and it belongs to composite plate and manufactures field.Especially NS312 alloy sheets and steel plate explosive clad plate.

Background technology

NS312 alloy is nickel-chromium-iron-based solid solution strengthened alloy, has good high-temperature corrosion resistance and antioxygenic property, good cold and hot working and welding technological properties, at 700 ℃, has below satisfied heat resistance and high plasticity.NS312 alloy all has corrosion resistance for various corrosive mediums.The composition of chromium makes this alloy than nickel 99.2 (alloy 200) and nickel 99.2 (alloy 201, low-carbon (LC)), have better corrosion resistance under oxidizing condition.Meanwhile, higher nickel content makes alloy in reducing condition and alkaline solution, have good corrosion resistance, and can effectively prevent chloro-iron stress corrosion cracking.NS312 alloy has good corrosion resistance in the organic acids such as acetic acid, acetic acid, formic acid, stearic acid, has medium corrosion resistance in inorganic acid.In the high-purity water once using with secondary cycle, there is very outstanding corrosion resistance in nuclear reactor.Especially outstanding performance is the corrosion that can resist dry chlorine gas and hydrogen chloride, and application of temperature reaches 650 ℃.At high temperature, the alloy of annealed state and solution treatment state has good anti-oxidant spalling resistance and high strength in air.This alloy also can be resisted ammonia and nitriding, carburizing atmosphere, but alloy can be subject to the corrosion of partial oxidation medium when Redox Condition alternately changes.

NS312 sheet alloy is listed ASTM standard B-168 in.But at home owing to being subject to the restriction of material and price, application or less, so do not reduce under the prerequisite of service life of equipment and performance in assurance, adopts NS312 plate/steel plate composite plate, not only takes full advantage of properties of materials---by explosive welding; Multiple layer by NS312 alloy as contact corrosion medium, the basic unit by steel as bearing load, but also greatly reduce the cost of equipment.

The NS312/ steel composite board of domestic pressure containers relies on mostly from external import at present, not only expensive, and the delivery cycle is very long, is unfavorable for like this applying of China NS312/ steel composite board equipment, is more unfavorable for the development of national industry.Therefore must autonomous innovation, develop the manufacture craft of large face NS312/ steel composite board, this to reducing device fabrication cost, shorten the device fabrication cycle and will play significance.This is also that the lumber recovery of explosive clad plate generally can only reach the reason of 85-90%.

Utility model content

The problem that the utility model solves is, usings explosive as the energy, by the method for exploding compound, produces NS312/ steel composite board, to realize the requirement of production domesticization, meets the needs of the industry developments such as China's chemical industry.Greatly improve the lumber recovery of explosive clad plate.

The technical solution of the utility model is: NS312 alloy sheets and steel plate explosive clad plate, by NS312 alloy sheets and steel plate, exploded compound composition, and NS312 alloy sheets thickness is 3-8mm, steel plate thickness is 20-100mm; The length of steel plate and wide size are respectively 10000mm and 2500mm, the edge surrounding welding carbon steel sheet of NS312 alloy sheets, and its width is 3-6cm.

NS312 alloy sheets can be used compared with small size and can make the edge of NS312 alloy sheets be unlikely to waste, is complete certified products composite plate as much as possible.

In multiple layer NS312 alloy sheets (4), should lay larger dose, the mounting arrangements that is preset angle configuration by explosion scene, finally make it to realize large-area continuous welding, meet NB/T47002.2-2009 < < pressure vessel Explosive Clad Steel Plate second portion: the requirement of nickel-steel composite board > > standard and ASME SA-265 < < nickel and nickel-based alloy composite steel plates > > standard, laminating rate can reach more than 99%, minimum shear strength τ _b>=210Mpa.

The blast of NS312/ steel composite board is compound is the multiple layer using NS312 alloy sheets as contact corrosion medium, and steel plate is as the basic unit of bearing load.Due to compound plate in blast recombination process under the effect of explosive energy according to this to substrate accelerated motion, and form certain bending angle, could form the effective combination between base, compound plate.And the intensity of NS312 alloy is relatively high, in blast recombination process, form bending angle more difficult, therefore static parameter will be selected larger explosive consumption, but facts have proved and adopt a large amount of jets that can produce after large dose in the process of the compound larger area composite plate of blast, and these jets can be trapped in the land of composite plate, affect laminating rate and the shear strength of composite plate.For this reason, we have taked parallel method to arrange in conjunction with preset angle configuration, increase the passing away of jet.By the reserved larger support interval in the limit portion region between NS312 alloy and steel, on NS312 alloy sheets, arrange thicker explosive, adopt the preset angle configuration laminating production that once explodes to go out the NS312/ steel composite board of 10 ㎡ left and right.But the reserved supporting gap in two ends is too high, cause laminating ripple thick, not even laminating, and the problem such as NS312 plate attenuate is too serious, therefore adopt line detonation way, on NS312 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 NS312 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 employing end low-angle is installed and the line method of igniting is once exploded, laminating production has gone out the NS312/ steel composite board of 25 ㎡ left and right.

It is compound that the utility model has been realized the blast of large-area NS312 alloy and steel, the performances such as its laminating rate and shear strength all can meet NB/T47002.2-2009 < < pressure vessel Explosive Clad Steel Plate second portion: the requirement of nickel-steel composite board > > standard and ASME SA-265 < < nickel and nickel-based alloy composite steel plates > > standard, the NS312 alloy clad steel plate of production can meet the needs of the industry developments such as device fabrication and chemical industry dimensionally.Overcome the problem of the bad laminating of edge alloy sheets, improved the usable floor area of composite plate.

Accompanying drawing explanation

Fig. 1 is the schematic diagram that the utility model once explodes and installs.

Detonator 1, explosive 2, protective layer 3, NS312 alloy sheets 4, carbon steel sheet 5, back-up block 6, steel plate (substrate) 7, basis 8.

The specific embodiment

Illustrate embodiment of the present utility model below.

NS312 alloy sheets and steel plate explosive clad plate, NS312 alloy sheets and the steel plate compound composition that explodes, NS312 alloy sheets thickness is 3,5 or 8mm, steel plate thickness is 20,50 or 100mm; The length of steel plate and wide size are respectively 10000mm and 2500mm, the edge surrounding welding carbon steel sheet of NS312 alloy sheets, and its width is 3-6cm.NS312 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.The part that when NS312 alloy sheets is less than steel plate edge 1-2cm with the area four limit marginal dimensions identical or alloy sheets of steel plate, NS312 alloy sheets is closed again is in use all the composite plate of certified products, has overcome the defect (existence of overlap) of edge foot quality.

The blast of large area NS312/ steel plate is compound is above layer NS312 alloy sheets being placed on while installing at the scene; steel plate is as a laminar substrate below; it between two plates, is supporting gap; in addition; the compound dose that explodes will strengthen; and for fear of the compound plate face of burning in blast recombination process, protective layer also will be thickeied.NS312 alloy sheets thickness is δ 4mm, plate width size is 10050mm * 2550mm (L * W), substrate thickness is δ 50mm Q345R steel plate, plate width is of a size of 10000 * 2500mm (L * W), the main body explosive of selecting is modified ammonium nitrate-fuel oil explosive, the parameter of modified ammonium nitrate-fuel oil explosive is: explosion velocity >=3200m/s, brisance (lead block compressed value) >=15mm.Rear layout explosive is protected on NS312 alloy sheets surface, and flashpoint is placed on NS312 alloy compound plate center, i.e. two cornerwise intersection points, and along the long side direction center line higher explosive of lay explosion velocity continuously, as shown in Figure 1.And explode compound by after heat treatment, leveling again by NB/T47002.2-2009 < < pressure vessel Explosive Clad Steel Plate second portion: nickel-steel composite board > > standard and ASME SA-265 < < nickel and nickel-based alloy composite steel plates > > standard detect laminating rate and shear strength, laminating rate reaches more than 99.9%, shear strength τ _b>=210Mpa.

The utility model provides large-area NS312 alloy material, utilize the energy of explosive to make it by the compound mode of exploding and steel plate between realize the method for metallurgical binding.

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.NS312 alloy sheets and steel plate explosive clad plate, is characterized in that being exploded compound composition by NS312 alloy sheets and steel plate, and NS312 alloy sheets thickness is 3-8mm, and steel plate thickness is 20-100mm; The length of steel plate and wide size are respectively 10000mm and 2500mm, the edge surrounding welding carbon steel sheet of NS312 alloy sheets, and its width is 3-6cm; NS312 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 after welding carbon steel sheet.