CN203831873U - Explosive composite plate with incoloy 825 alloy plate and steel plate - Google Patents

Abstract

An explosive composite plate with an incoloy 825 alloy plate and a steel plate is formed by combining the incoloy 825 alloy plate and the steel plate in an explosive mode, the thickness of the incoloy 825 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 incoloy 825 alloy plate, and the width of each carbon steel plate is 3-6 cm. The area of the incoloy 825 alloy plate is small so that the edges of the incoloy 825 alloy plate can not be wasted, and a qualified composite plate as complete as possible is obtained.

Description

The explosive clad plate of Incoloy825 alloy sheets and steel 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.

Background technology

Incoloy825 is a kind of full austenite resisto of titanium stabilizedization processing, and has added molybdenum and copper.This alloy has stable face-centred cubic structure.Incoloy825 alloy and other Incoloy alloy are different, and its chemical composition and appropriate heat treatment have ensured that corrosion resistance is not subject to the weakening of sensitization.The anticorrosion stress-resistant cracking performance that Incoloy825 alloy characteristic feature has had; Good resistance to spot corrosion and crevice corrosion behavior; Well non-oxidizability and non-oxidizable hot acid performance; In the time of room temperature and the high temperature up to 550 DEG C, all there is good mechanical performance; There is the certification that manufacture temperature reaches the pressure vessel of 450 DEG C.Incoloy825, as a kind of general engineering alloy, has antiacid and alkali metal corrosive nature under oxidation and reducing environment.Nickelic composition makes alloy have effective stress corrosion dehiscence resistant.Corrosion resistance in various media is all fine, and as sulfuric acid, phosphoric acid, nitric acid and organic acid, alkali metal is as NaOH, potassium hydroxide and hydrochloric acid solution.The combination property that Incoloy825 is higher shows in the various nuclear burning dissolvers of corrosive medium, as sulfuric acid, nitric acid and NaOH are all processed in same equipment.

Incoloy825 sheet alloy is listed ASTM standard B-424 in.Applied widely abroad.Can ensure the service life of equipment.But at home owing to being subject to the restriction of the rare and price of material, application or less, therefore do not reduce under the prerequisite of service life of equipment and performance in guarantee, adopt Incoloy825 alloy-steel composite board, not only take full advantage of properties of materials---the multiple layer by Incoloy825 alloy as contact corrosion medium, basic unit by steel as bearing load, but also greatly reduce the cost of equipment, save and used material.But consider that this material price is very expensive, a lot of producers of domestic chemical industry are in beginning one's study with this material as multiple layer making composite plate in recent years.This is for having great significance the service life of saving material, extension device.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.This is also the reason that the lumber recovery of explosive clad plate generally can only reach 85-90%.

Utility model content

The problem that the utility model solves is, using explosive as the energy, by the method production Incoloy825 alloy-steel composite board 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: Incoloy825 alloy sheets and steel plate explosive clad plate, exploded compound composition by Incoloy825 alloy sheets and steel plate, Incoloy825 alloy sheets 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 ncoloy825 alloy sheets, its width is 3-6cm.The area of Incoloy825 alloy sheets 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.

In multiple layer Incoloy825 alloy sheets (4), should lay larger dose, be the mounting arrangements of preset angle configuration by explosion scene, finally make it to realize large-area continuous welding, meet the requirement of NB/T47002.2-2009 " pressure vessel Explosive Clad Steel Plate Part II: 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 Incoloy825 alloy-steel composite board is compound is the multiple layer using Incoloy825 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 Incoloy825 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 reserved the limit portion region between Incoloy825 alloy and steel larger support interval, on Incoloy825 alloy sheets, arrange thicker explosive, adopt the preset angle configuration laminating production that once explodes to go out the Incoloy825 alloy-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 Incoloy825 plate attenuate is too serious, therefore adopt line detonation way, on Incoloy825 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 Incoloy825 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 employing end low-angle is installed and the line method of igniting is once exploded, laminating production has gone out the Incoloy825 alloy-steel composite board of 25 ㎡ left and right.

The beneficial effects of the utility model are: the blast that has realized large-area Incoloy825 alloy and steel is compound, the performances such as its laminating rate and shear strength all can meet the requirement of NB/T47002.2-2009 " pressure vessel Explosive Clad Steel Plate Part II: nickel-steel composite board " standard and ASME SA-265 " nickel and nickel-based alloy composite steel plates " standard, and the Incoloy825 alloy clad steel plate of production can meet the needs of the industry development such as device fabrication and chemical industry dimensionally.The area of alloy sheets is slightly little, makes the alloy sheets of whole area of the composite plate of moulding all effective, and edge also can be better compound.And the lumber recovery of explosive clad plate can obviously improve.

Brief description of the drawings

Fig. 1 be the utility model once explode install schematic diagram.

Detailed description of the invention

Illustrate embodiment of the present utility model below.

In Fig. 1, detonator 1, explosive 2, protective layer 3, Incoloy825 alloy sheets 4, steel plate 5, back-up block 6, steel plate (substrate) 7, basis 8.Actual finished product is the compound of Incoloy825 alloy sheets 4 and steel plate (substrate) 7.

Incoloy825 alloy sheets and steel plate explosive clad plate, exploded compound composition by Incoloy825 alloy sheets and steel plate, Incoloy825 alloy sheets 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 Incoloy825 alloy sheets, its width is 3-6cm.(after blast, this plate may be overlap).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 Incoloy825 alloy-steel plate is compound is above layer Incoloy825 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.Incoloy825 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 Incoloy825 alloy sheets surface, and flashpoint is placed on Incoloy825 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.By NB/T47002.2-2009 " pressure vessel Explosive Clad Steel Plate Part II: nickel-steel composite board " standard and ASMESA-265 " nickel and nickel-based alloy composite steel plates " standard, laminating rate and shear strength are detected again after heat treatment, leveling and explode after compound, laminating rate reaches more than 99.9%, shear strength τ _b>=210Mpa.

The utility model provides large-area Incoloy825 alloy material, utilizes the energy of explosive to make it to realize the method for metallurgical binding by the compound mode of exploding between steel plate.

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 (2)

1.Incoloy825 alloy sheets and steel plate explosive clad plate, it is characterized in that exploding compound composition by Incoloy825 alloy sheets with steel plate, Incoloy825 alloy sheets 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 Incoloy825 alloy sheets, its width is 3-6cm.

2. Incoloy825 alloy sheets according to claim 1 and steel plate explosive clad plate, it is characterized in that described Incoloy825 alloy sheets is less than steel plate edge 1-2cm with the area four limit marginal dimensions identical or Incoloy825 alloy sheets of steel plate, after welding carbon steel sheet, be greater than the area of steel plate.