CN209999799U - Large-area double-layer metal composite plate and spherical end socket of suppression pool - Google Patents
Large-area double-layer metal composite plate and spherical end socket of suppression pool Download PDFInfo
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- CN209999799U CN209999799U CN201920480746.5U CN201920480746U CN209999799U CN 209999799 U CN209999799 U CN 209999799U CN 201920480746 U CN201920480746 U CN 201920480746U CN 209999799 U CN209999799 U CN 209999799U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses a kind large tracts of land double-deck metal composite board and suppression pool sphere head, double-deck metal composite board include explosion welding compound 304L austenitic stainless steel layer and 10CrNi3MoV low alloy high strength steel layer, double-deck metal composite board's length is 9000mm-12000mm, and the width is 3400mm-3600mm the utility model discloses a double-deck metal composite board, by 304L austenitic stainless steel and 10CrNi3MoV low alloy high strength steel large tracts of land explosion welding complex formation, have two kinds of metal material's advantage concurrently to it is big to make the whole area of composite board, does benefit to the manufacturing of main equipment component, reduces the welding seam quantity that needs a plurality of boards to splice welding, improves performance such as component intensity and the corrosion resisting ability of making.
Description
Technical Field
The utility model relates to a metal composite board technical field especially relates to kinds of large tracts of land double-deck metal composite board and suppression pool sphere head.
Background
The composite material produced by explosion cladding method or explosion welding cladding method has the advantages of the clad metal, and has been widely applied to the industrial fields of petroleum, chemical industry, metallurgy, ship, aerospace, nuclear energy and the like, and the multilayer composite metal material is produced by rolling the composite material by taking titanium and alloy thereof, nickel and alloy thereof, copper and alloy thereof, stainless steel as a composite layer and carbon steel or low alloy steel or stainless steel as a base layer and explosion welding cladding or explosion welding cladding.
304L stainless steel (a typical ultra low carbon austenitic stainless steel) is a standard model of types of universal ultra low carbon austenitic stainless steel, is widely used in the manufacture of equipment and machinery requiring a combination of corrosion resistance and good formability.A crystal structure is a face centered cubic crystal structure with about 0.030% or less carbon making 304L austenitic stainless steel suitable for welding applications.
The 10CrNi3MoV low-alloy high-strength steel is quenched and tempered heat-treated steel, and high-strength and high-toughness mechanical properties are obtained through quenching and tempering heat treatment. Meanwhile, the 10CrNi3MoV low-alloy high-strength steel belongs to low-carbon weldable alloy structural steel, is suitable for a pressure-resistant shell structure, and mainly comprises the following application occasions: the pressure-resistant shell or the nuclear reactor pressure-resistant pool structure, the ship steel structure, the seawater system, the plate-type equipment in seawater heat exchange and the like, so the market demand is strong. But the practical application is still less at present due to the limitation of materials and price.
At present, a composite plate which is prepared by combining 304L stainless steel and 10CrNi3MoV low-alloy high-strength steel and has two materials is not available, and the composite plate prepared by combining other materials is only small in area (8 square meters), so that the application occasions are limited.
For example, in an offshore platform, a compact arrangement small nuclear reactor hold-down tank structure is located outside the nuclear reactor, and is designed to suppress transient pressure spikes within the nuclear reactor vessel for a short period of time during baseline accident conditions, prevent transient overpressurization of the nuclear reactor vessel, and maintain the pressure within the nuclear reactor vessel below design values and within acceptable limits. In a conventional nuclear power facility, the raw materials of the suppression pool component are all selected from a carbon steel plate and an anticorrosive coating, and the method has the disadvantages that the anticorrosive coating has short service life and needs irregular inspection and maintenance to ensure the integrity and corrosion resistance of the coating, so that the method has a plurality of disadvantages for arranging a small nuclear reactor applied to an ocean platform for a long time.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, the suppression pool sphere head that kinds of large tracts of land double-deck metal composite board and this double-deck metal composite board made is provided.
The technical proposal adopted by the utility model for solving the technical problems is that large-area double-layer metal composite plates are provided, which comprise a 304L austenitic stainless steel layer and a 10CrNi3MoV low-alloy high-strength steel layer which are composited by explosion welding;
the length of the double-layer metal composite plate is 9000mm-12000mm, and the width of the double-layer metal composite plate is 3400mm-3600 mm.
Preferably, the 304L austenitic stainless steel layer has a thickness of 3-6 mm; the thickness of the 10CrNi3MoV low-alloy high-strength steel layer is 10-35 mm.
Preferably, the 304L austenitic stainless steel layer has a thickness of 4 mm; the thickness of the 10CrNi3MoV low-alloy high-strength steel layer is 30 mm.
Preferably, the bonding interface of the 304L austenitic stainless steel layer and the 10CrNi3MoV low-alloy high-strength steel layer is wavy.
The utility model discloses still provide kinds of suppression pond spherical head, arbitrary above adopting double-deck metal composite panel make, suppression pond spherical head includes ball lamella spare and a plurality of enclose to connect the curved surface spare that ball lamella spare periphery and meet.
Preferably, the 304L austenitic stainless steel layer of the ball-petal piece is located on its concave face;
the 304L austenitic stainless steel layer of the curved piece is located on its concave side.
Preferably, the radius R of the ball flap member is 500mm in inside diameter.
Preferably, the spherical end socket of the suppression pool comprises three curved pieces, the ball valve piece comprises three side edges, th ends of the three curved pieces are respectively butted with the three side edges, and the second end of each curved piece is butted with another adjacent curved piece.
Preferably, the side of the ball flap member is 500mm in length.
The utility model has the advantages that: the double-layer metal composite plate is formed by compositing 304L austenitic stainless steel and 10CrNi3MoV low-alloy high-strength steel through large-area explosion welding, has the advantages of two metal materials, is large in overall area, facilitates manufacturing of large-scale equipment components, reduces the number of welding seams required for welding a plurality of plates in a splicing mode, and improves the strength, corrosion resistance and other performances of the manufactured components. The spherical seal head of the suppression pool made of the double-layer metal composite plate solves the problems of short service life and the like caused by the conventional carbon steel plate and an anticorrosive coating.
Drawings
The present invention will be described with reference to the accompanying drawings and examples in which steps are performed:
fig. 1 is a schematic cross-sectional view of a double-layer metal composite plate according to an embodiment of the present invention ;
fig. 2 is a schematic structural view of a spherical head of a suppression pool according to an embodiment of the present invention ;
fig. 3 is an exploded view of the spherical head of the suppression pool shown in fig. 2.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the large-area double-layer metal composite plate according to the embodiment of the present invention has a length of 9000mm to 12000mm and a width of 3400mm to 3600mm, has a large area, and is beneficial to the manufacture of large-scale equipment members.
The double-layer metal composite plate comprises a 304L austenitic stainless steel layer 2 and a 10CrNi3MoV low-alloy high-strength steel layer 1 which are compounded by explosion welding. The bonding interface of the 304L austenitic stainless steel layer 2 and the 10CrNi3MoV low-alloy high-strength steel layer 1 is wavy.
Wherein the thickness of the 304L austenitic stainless steel layer 2 is 3-6 mm; the thickness of the 10CrNi3MoV low-alloy high-strength steel layer 1 is 10-35 mm. Alternatively, the 304L austenitic stainless steel layer 2 has a thickness of 4mm and the 10CrNi3MoV low alloy high strength steel layer 1 has a thickness of 30 mm.
The 304L austenitic stainless steel has good corrosion resistance to desalted water and seawater, the 10CrNi3MoV low-alloy high-strength steel has high strength and excellent toughness and plasticity, and the formed composite plate integrates the advantages of two metal materials and is suitable for manufacturing a compact arrangement small nuclear reactor suppression pool component and the like.
The method comprises the steps of placing a 10CrNi3MoV low-alloy high-strength steel plate as a substrate, placing a 304L austenitic stainless steel plate as a clad plate on the substrate, placing a supporting block with the height of 9mm between the two plates, laying explosive with the thickness of 45mm on the upper surface of the clad plate, arranging a detonator initiation point at the center (the intersection point of two diagonal lines) on the clad plate, initiating the detonator, transmitting the explosive chemical reaction of the explosive to the left and right on the clad plate at the detonation speed to form detonation waves, transmitting the detonation kinetic energy to the clad plate, pushing the clad plate to move towards the substrate at a high speed, forming a fixed bending angle, sequentially impacting the clad plate and the substrate at the contact point, locally generating high temperature on the interface, further forming effective interface metallurgical bonding of the substrate and the clad plate with a wavy structure, then carrying out heat treatment to remove stress, and carrying out leveling, trimming, surface treatment, ultrasonic nondestructive detection and the like according to the situation.
Will the utility model discloses a double-deck metal composite panel detects conjugation rate and shear strength according to GB/T8165 stainless steel clad steel plate and steel band standard and ASME SA-264 chromium-nickel stainless steel clad steel plate standard, and ultrasonic detection conjugation rate reaches 100%, and minimum shear strength is greater than or equal to 390Mpa, and yield strength > 580Mpa, and tensile strength > 650Mpa, the percentage elongation > 20%, 0 ℃ ballistic work > 270J, and minimum shear strength is superior to the standard requirement moreover. Therefore, the double-layer metal composite plate has high strength, excellent toughness and plasticity, excellent corrosion resistance and better processing and welding service performance, and can be used in various fields.
The utility model discloses a suppression pool spherical surface head adopts foretell double-deck metal composite panel to make, can replace conventional carbon steel board + anticorrosive coating's mode, solves the short scheduling problem of life of conventional this mode.
As shown in fig. 2 and 3, the suppression pool spherical head according to the embodiment of the present invention includes a ball flap member 10, and a plurality of curved surface members 20 surrounding and connected to the outer periphery of the ball flap member 10.
The ball flap member 10 and the curved surface member 20 are both made of a double-layer metal composite plate, and therefore both have a 304L austenitic stainless steel layer 2 and a 10CrNi3MoV low-alloy high-strength steel layer 1 as shown in fig. 1. At the connecting interface 30 between the ball flap member 10 and the curved surface member 20, the 304L austenitic stainless steel layer 2 of the ball flap member 10 is butted with the 304L austenitic stainless steel layer 2 of the curved surface member 20, and the 10CrNi3MoV low alloy high strength steel layer 1 of the ball flap member 10 is butted with the 10CrNi3MoV low alloy high strength steel layer 1 of the curved surface member 20.
In addition, the 304L austenitic stainless steel layer 2 of the ball flap piece 10 is positioned on the inner concave surface as the inner side surface, the 10CrNi3MoV low alloy high strength steel layer 1 also forms the outer side surface of the ball flap piece 10 on the back surface of the austenitic stainless steel layer 2, correspondingly, the 304L austenitic stainless steel layer 2 of the curved piece 20 is positioned on the inner concave surface as the inner side surface, and the 10CrNi3MoV low alloy high strength steel layer 1 also forms the outer side surface of the curved piece 20 on the back surface of the austenitic stainless steel layer 2.
The curvature of the ball flap member 10 is close to or a spherical curvature, and in the alternative embodiment of , the radius R of the ball flap member 10Inner diameterIs 500 mm; the side length of the ball flap member 10 may be 500 mm. Understandably, the radius R of the ball flap member 10Inner diameterNot limited to 500mm, can be increased or decreased according to the requirements of the component, such as 400mm, 600mm and the like; likewise, the length of the side edge is not limited to 500 mm.
The curved surface 20 may be a square strip with a long side longer than the side length of the ball flap 10 and a short side with a width that is the difference between the long side and the side length of the ball flap 20.
The th end of the curved member 20 can be curved to correspond to the curvature of the ball flap member 10 to mate with the ball flap member 10, and the opposite second end can be projected outside the ball flap member 10 to meet with another adjacent curved member 20, so that the plurality of curved members 20 can be joined in series to enclose the ball flap member 10 within an inner circle.
The body is formed by fixedly connecting the ball flap piece 10 and the curved piece 20 through welding after matching.
In this embodiment, as shown in fig. 2 and 3, the suppression pool spherical sealing head includes three curved members 20, the ball flap member 10 includes three sides, the th ends of the three curved members 20 are respectively butted with the three sides, and the second end of each curved member 20 is butted with another curved member 20 adjacent to the second end.
Specifically, long sides of each curved surface piece 20 are butted with the side of the ball flap piece 10, the remaining long side part extending out of the side is butted with the short side of another curved surface piece 20, and the periphery of each side of the formed suppression pool spherical end socket is neat.
It can be understood that, in the spherical end socket of the suppression pool, the ball flap members 10 are not limited to three sides, but may be four, five or more, and the curved surface members 20 are increased or decreased according to the number of the sides of the ball flap members 10.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
1, kinds of large-area double-layer metal composite plates, which is characterized by comprising a 304L austenitic stainless steel layer and a 10CrNi3MoV low-alloy high-strength steel layer which are composited by explosion welding;
the length of the double-layer metal composite plate is 9000mm-12000mm, and the width of the double-layer metal composite plate is 3400mm-3600 mm.
2. The dual layer metal composite panel according to claim 1, wherein the 304L austenitic stainless steel layer has a thickness of 3-6 mm; the thickness of the 10CrNi3MoV low-alloy high-strength steel layer is 10-35 mm.
3. The dual layer metal composite panel according to claim 2, wherein the 304L austenitic stainless steel layer has a thickness of 4 mm; the thickness of the 10CrNi3MoV low-alloy high-strength steel layer is 30 mm.
4. The dual-layer metal composite plate according to claim 1, wherein the bonding interface between the 304L austenitic stainless steel layer and the 10CrNi3MoV low-alloy high-strength steel layer is wavy.
The suppression pool spherical end socket is characterized by being manufactured by adopting the double-layer metal composite plate of any of claims 1-4, and comprising a ball valve piece and a plurality of curved surface pieces which are connected and enclosed at the periphery of the ball valve piece.
6. The suppression pool head of claim 5, wherein said 304L austenitic stainless steel layer of said ball lobe member is on its concave face;
the 304L austenitic stainless steel layer of the curved piece is located on its concave side.
7. The suppression pool spherical head of claim 5, wherein said spherical lobe member has a radius RInner diameterIs 500 mm.
8. The pool head of claim 5, wherein the pool head comprises three curved members, the ball flap member comprises three sides, the th ends of the three curved members are respectively abutted against the three sides, and the second end of each curved member is abutted against another adjacent curved member.
9. The suppression pool spherical head of claim 8, wherein said ball flap member has a side length of 500 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920480746.5U CN209999799U (en) | 2019-04-10 | 2019-04-10 | Large-area double-layer metal composite plate and spherical end socket of suppression pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920480746.5U CN209999799U (en) | 2019-04-10 | 2019-04-10 | Large-area double-layer metal composite plate and spherical end socket of suppression pool |
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| Publication Number | Publication Date |
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| CN209999799U true CN209999799U (en) | 2020-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920480746.5U Active CN209999799U (en) | 2019-04-10 | 2019-04-10 | Large-area double-layer metal composite plate and spherical end socket of suppression pool |
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| Country | Link |
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| CN (1) | CN209999799U (en) |
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- 2019-04-10 CN CN201920480746.5U patent/CN209999799U/en active Active
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