CN202115017U - N08028 alloy plate-steel explosive composite plate - Google Patents

Abstract

An N08028 alloy plate-steel explosive composite plate comprises an N08028 alloy plate and a steel base plate in an explosive composite manner, the thickness of the N08028 alloy plate ranges from 3mm to 10mm, the thickness of the steel base plate ranges from 60mm to 100mm, and the plate width of the alloy plate is 12,900mm*3,100(L*W). The N08028 alloy plate-steel explosive composite plate is capable of meeting the requirement for development of industries such as chemical industry and the like.

Description

N08028 alloy sheets-steel explosive clad plate

Technical field

The utility model is to produce the metallic explosive composite plate with the blast complex method, and it belongs to composite plate and makes the field.

Background technology

N08028 alloy (Alloy28) contains Cr amount up to 27% and contain the high alloy austenitic stainless steel of Mo, grows up for solving the phosphoric acid by wet process heat exchanger materials, is corrosion resistance best material in phosphoric acid by wet process is used at present.The raising of Cl-and F-content causes the material corrosion aggravation in the phosphoric acid by wet process, and with other alloy phase ratios, this alloy allows the limit that Cl-, F-increase in the phosphoric acid by wet process much bigger.The corrosion resisting property of some nickel-base alloys (like HastelloyC and HastelloyG) can't be by comparison.Hot-working and cold machining process are functional, and any heat, the cold-working operation of producing conventional austenitic stainless steel is applicable to that this alloy has no problem, and can successfully produce rod, plate, band, pipe and the silk material and the forging of various regular sizes.The Alloy28 alloy has been listed in the 8th of ASME rules, first fascicle.Plate, thin plate, band, bar and tubing are listed ASME standard SB-709 and SB-668 respectively in, and ASTM standard B-709 and B-668.The Alloy28 alloy can guarantee the service life of equipment in welded joints in the ability that welding heat affected zone has the opposing grain boundary precipitate to form.Therefore, the Alloy28 alloy is widely used in the harshnesses such as bleaching process equipment, offal treatment equipment, chemical plant, pharmaceutical factory and radioactive waste in combustion gas desufurization system, paper pulp and paper mill, the device systems of complicated corrosive atmosphere in recent years.But at home owing to receive the rare restriction with price of material; Therefore application or less is guaranteeing not reduce under the prerequisite of service life of equipment and performance employing Alloy28 alloy-steel composite board; Not only made full use of properties of materials---by the multiple layer of Alloy28 alloy as the contact corrosion medium; By the basic unit of steel, but also greatly reduce the cost of equipment, practiced thrift and used material as bearing load.Domesticly still can't produce the Alloy28 alloy so far.Until in recent years because the needs of chemical industry development just begin import Alloy28 sheet alloy; It is used for the making of pressure vessels for the chemical industry as anti-corrosion material; But consider this imported material very expensive, a lot of producers of domestic chemical industry begin one's study in recent years and make composite plate with this material as multiple layer.Have great significance this service life for economical with materials, prolongation equipment.

The utility model content

The problem that the utility model solved is, as the energy, produces Alloy28 alloy-steel composite board through the blast composite methods with explosive, to realize the requirement of production domesticization, satisfies the needs of industry development such as China's chemical industry.

The technical scheme of the utility model is: N08028 alloy sheets-steel explosive clad plate, explode compound the composition by N08028 alloy sheets and substrate steel sheet, and N08028 alloy sheets thickness is 3-10mm, substrate steel sheet thickness is 60-100mm.

On multiple layer Alloy28 alloy sheets (4), should lay explosive; The mounting arrangements that combines preset angle configuration through the explosion scene parallel method; Finally make it to realize large-area continuous welding; Satisfy the requirement of NB/T47002.2-2009 " nickel-steel composite board " standard and ASME SA-265 " nickel and nickel-base alloys clad steel plate " standard, the applying rate can reach more than 99%, minimum shear strength τ _b>=210Mpa.

The blast of Alloy28 alloy-steel composite board is compound to be that steel plate is as the basic unit of bearing load the multiple layer of Alloy28 alloy sheets as the contact corrosion medium.Because compound plate according to this to substrate accelerated motion, and forms certain bending angle in the blast recombination process under the effect of explosive energy, could form the effective combination between basic, compound plate.And the intensity of Alloy28 alloy is higher relatively; In the blast recombination process, form difficulty of bending angle; Therefore static parameter will be selected bigger explosive consumption for use; But facts have proved and adopt behind the big dose, and these jets can be trapped in the land of composite plate, influence the applying rate and the shear strength of composite plate at the compound a large amount of jets that can produce in than the process of large tracts of land composite plate of blast.For this reason, we have taked parallel method to combine preset angle configuration to arrange, increase the passing away of jet.Bigger support interval is reserved in limit portion between Alloy28 alloy and steel zone, on the Alloy28 alloy sheets, arranged thicker explosive, compound Alloy28 alloy-steel composite board of having produced about 40 ㎡ explodes.Problems such as but the support gap that two ends are reserved is too high, causes thick wavy combination easily, and while end thickness attenuate is serious; Therefore adopt the line detonation way; On the Alloy28 alloy,,, discharge to broadside to change the jet travel direction along the length center line higher explosive of lay explosion velocity continuously; Shortened the distance of jet, avoided jet to restrain in the land in the land motion.It is bigger slightly than the centre that the gap is supported in limit portion zone when base, compound plate are installed the support gap between Alloy28 alloy and the steel, and so also for the jet that arrives limit portion provides more unobstructed passage, the while also can avoid the two ends jet to pile up.Compound Alloy28 alloy-steel composite board of having produced about 40 ㎡ so low-angle installation of employing end and the line method of igniting are once exploded.

The utility model has realized that the blast of large-area Alloy28 alloy and steel is compound; Performances such as its applying rate and shear strength all can satisfy NB/T47002.2-2009 " nickel-steel composite board " standard and ASME SA-265 " nickel and nickel-base alloys clad steel plate " standard code, and the Alloy28 alloy clad steel plate of production can satisfy the needs of industry developments such as device fabrication and chemical industry dimensionally.

Description of drawings

The sketch map that Fig. 1 once explodes and installs for the utility model

Detonator 1, explosive 2, protective layer 3, Alloy28 alloy sheets 4, back-up block 5, substrate 6, basis 7.

The specific embodiment

Specify the embodiment of the utility model below.

The blast of large tracts of land Alloy28 alloy-steel plate is compound to be above layer Alloy28 alloy sheets being placed on when installing at the scene; Steel plate is the support gap, in addition as a following laminar substrate between two plates; For fear of burn compound plate face in the blast recombination process, protective layer will be thickeied 0.5mm.Alloy28 alloy sheets thickness is δ 5mm; Plate width of cloth size is 13000mm * 3200mm (L * W); Typical substrate steel sheet thickness is δ 80mm Q345R steel plate, and the plate width of cloth is of a size of 12900mm * 3100mm, and (L * W), the main body explosive of selecting for use is a powdery emulsifying explosive; The explosive parameter is: explosion velocity >=3200m/s, brisance (lead block compressed value) >=15mm.Alloy28 alloy sheets surface protects the back to arrange explosive, and flashpoint is placed on Alloy28 alloy compound plate geometric center, i.e. two intersection of diagonal, and along the long side direction center line higher explosive of lay explosion velocity continuously, as shown in Figure 1.Explode compound after by NB/T47002.2-2009 " nickel-steel composite board " standard and ASME SA-265 " nickel and nickel-base alloys clad steel plate " standard applying rate and shear strength are detected again after the fire point repair welding reconditioning, heat treatment, leveling; The applying rate reaches more than 99.9%, shear strength τ _b>=210Mpa.The utility model provides large-area Alloy28 alloy material, the energy that utilizes explosive charge to produce make it through the compound mode of exploding and steel plate between realize the composite plate of metallurgical binding.

Claims (1)

1.N08028 alloy sheets-steel explosive clad plate is characterized in that being exploded compound the composition by N08028 alloy sheets and substrate steel sheet, N08028 alloy sheets thickness is 3-10mm, and substrate steel sheet thickness is 60-100mm.

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