CN117418486A - High-strength corrosion-resistant steel corrugated pipe and preparation process thereof - Google Patents
High-strength corrosion-resistant steel corrugated pipe and preparation process thereof Download PDFInfo
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- CN117418486A CN117418486A CN202311249782.8A CN202311249782A CN117418486A CN 117418486 A CN117418486 A CN 117418486A CN 202311249782 A CN202311249782 A CN 202311249782A CN 117418486 A CN117418486 A CN 117418486A
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- 239000010935 stainless steel Substances 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 79
- 239000010959 steel Substances 0.000 claims abstract description 79
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 30
- 229910001220 stainless steel Inorganic materials 0.000 claims description 21
- 230000007797 corrosion Effects 0.000 claims description 16
- 238000005260 corrosion Methods 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 15
- 238000000227 grinding Methods 0.000 claims description 11
- 238000005242 forging Methods 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 9
- 238000007254 oxidation reaction Methods 0.000 claims description 9
- 238000005498 polishing Methods 0.000 claims description 9
- 238000004080 punching Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000004381 surface treatment Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000003490 calendering Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a high-strength corrosion-resistant steel corrugated pipe and a preparation process thereof, wherein a connecting ring A and a connecting ring B are respectively fixedly connected to two ends of the steel corrugated pipe, reinforcing assembling plates are symmetrically embedded in the inner shafts of the connecting rings, reinforcing assembling grooves are symmetrically formed in the inner shafts of the connecting rings B, assembling holes are formed in the outer parts of the reinforcing assembling plates and the outer parts of the connecting rings B, axially adjacent connecting rings A and connecting rings B are axially connected through a plurality of bolt pieces, and connecting pieces for reinforcing connectivity of the connecting rings A and the connecting rings B are arranged between the axially adjacent connecting rings A and the connecting rings B. According to the utility model, under the condition that the structure of the steel corrugated pipes is not damaged, the connecting piece is enabled to carry out primary connection on the connecting ring A and the connecting ring B, the bolt piece is enabled to carry out fastening connection on the connecting ring A and the connecting ring B, and the primary connection of the connecting piece and the fastening connection of the bolt piece are mutually matched, so that the axial connection strength between two adjacent steel corrugated pipes can be enhanced, and the overall bearing capacity is improved.
Description
Technical Field
The utility model relates to the technical field of steel corrugated pipes, in particular to a high-strength corrosion-resistant steel corrugated pipe and a preparation process thereof.
Background
The corrugated structure of the steel corrugated pipe can lead the reasonable stress and uniform load distribution of the culvert pavement. The structural form of the steel corrugated pipe product is divided into a whole shape and an assembled shape, the cross section of the steel corrugated pipe product is round, oval, horseshoe-shaped, arched and the like, the pipe diameter range of the steel corrugated pipe product is 0.3m to 12m, the processing thickness of the steel corrugated pipe product is 1.6mm to 7mm, and the steel corrugated pipe product can meet the requirements of a structure with the filling height of 0.5m to 60m on the top of the pipe. The materials required for producing the prepared steel corrugated pipe are required to meet the following conditions: (1) The required material must have stronger plasticity to be beneficial to the elastic performance and processing of the steel corrugated pipe; (2) The required materials must have stronger tensile strength and fatigue strength to ensure the normal exertion of the elastic function; (3) The required materials have stronger welding capability so as to be beneficial to the assembly between the steel corrugated pipes; (4) The required materials must have sufficient corrosion resistance to ensure the service life of the steel bellows.
Through searching, the utility model patent with the Chinese patent number of CN 210797318U discloses a steel corrugated pipe culvert end wall, which comprises an upper end wall and a lower end wall, wherein the upper end wall is of a steel corrugated plate structure, the lower end wall is of a concrete structure, the upper end wall and the lower end wall are respectively rectangular vertical plates, the lower end of the steel corrugated plate of the upper end wall is connected with the upper end of the concrete of the lower end wall through embedded foundation bolts, the lower end of the concrete of the lower end wall is fixed on the ground, opposite semicircle holes are respectively arranged in the center of the lower part of the steel corrugated plate of the upper end wall and the center of the upper part of the concrete of the lower end wall, the diameter of a round hole formed by the two semicircle holes is matched with the diameter of the steel corrugated pipe, the upper half part of the end face of the steel corrugated pipe is connected with the circumference of the semicircle hole of the steel corrugated plate of the upper end wall through bolts, and the lower half part of the end face of the steel corrugated pipe is connected with the circumference of the concrete semicircle hole of the lower end wall through anchor bolts. Compared with the prior art, the utility model patent with the Chinese patent number of CN 210797318U can be consistent with the deformation trend of the steel corrugated pipe, has strong integral deformation resistance and high strength, effectively avoids the cracking of the end wall caused by the deformation of the steel corrugated pipe, and prevents the damage of the end wall.
However, in the actual installation process of the culvert end wall of the steel corrugated pipe, when two adjacent steel corrugated pipes are axially connected through the fastening bolts, the connection strength of the connection part is weak, so that the connection part is easy to deform under the heavy pressure of an upper structure, the overall bearing capacity is reduced, and therefore, the high-strength corrosion-resistant steel corrugated pipe capable of enhancing the axial connection strength is required.
Disclosure of Invention
The utility model aims to solve the defect that the joint is easy to deform under the heavy pressure of an upper structure in the prior art, so that the integral bearing capacity is reduced, and provides a high-strength corrosion-resistant steel corrugated pipe and a preparation process thereof.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a high strength corrosion-resistant steel corrugated pipe and preparation technology, includes the steel corrugated pipe, the both ends of steel corrugated pipe are fixedly connected with go-between A and go-between B respectively, the inboard axle symmetry of go-between is inlayed and is fixed with the enhancement tooling plate, the inboard axle symmetry of go-between B has been seted up with the enhancement groove of assembling of enhancement tooling plate looks adaptation, the enhancement tooling plate with the hole of assembling has all been seted up to go-between B's outside, axially adjacent go-between A with go-between B is connected through a plurality of bolt piece axial; the connecting piece that is used for strengthening the two connectivity is provided with between the axially adjacent go-between A with go-between B, the connecting piece includes that axisymmetric seting up go-between A outside insertion groove, axisymmetric seting up go-between A inside joint groove and axisymmetric seting up go-between B outside spout mouth, the inside sliding connection of spout mouth has two slide, two the slide is close to one side joint fixedly connected with coupling spring each other, two the equal fixedly connected with arc fixture block of one side that the slide kept away from each other.
The technical scheme further comprises the following steps:
the section of the steel corrugated pipe is circular, the inner wall of the steel corrugated pipe is smooth, and the outer wall of the outer steel corrugated pipe is corrugated; the corrugated structure of the outer wall of the steel corrugated pipe can lead the reasonable stress and the uniform load distribution of the culvert pavement.
A corrosion-resistant sealing gasket can be arranged between the connecting ring A and the connecting ring B which are axially adjacent, and can be matched with the end face of the connecting ring A; the arrangement of the corrosion-resistant sealing gasket can ensure the connection tightness between the connecting ring A and the connecting ring B.
Each bolt piece comprises a fastening bolt capable of penetrating through the assembly hole, a fastening nut is connected to the external threads of the fastening bolt, and an outer gasket and an inner gasket are arranged outside the fastening bolt; the outer gasket can be attached to the outer side of the connecting ring B, the inner gasket can be attached to the inner side of the reinforced assembly plate, and openings are formed in the middle of the outer gasket and the middle of the inner gasket; after the axially adjacent reinforcing assembling plates are placed in the reinforcing assembling grooves, fastening bolts penetrate through the outer gaskets, the connecting rings B, assembling holes in the reinforcing assembling plates and the inner gaskets, fastening nuts are screwed, and then the axially adjacent connecting rings A and B can be connected.
The inserting groove is communicated with the clamping groove, and the connecting spring is positioned in the chute opening; the width of the inserting groove is similar to the shortest distance between the two arc-shaped clamping blocks, and the width of the clamping groove is similar to the longest distance between the two arc-shaped clamping blocks; the connecting ring A and the connecting ring B which are axially adjacent are butted, and the preliminary connection of the connecting ring A and the connecting ring B can be completed through the connecting piece, so that the axial connection strength between two adjacent steel corrugated pipes can be enhanced through the preliminary connection of the connecting piece and the fastening connection of the bolt piece under the condition that the steel corrugated pipe structure is not damaged.
A high-strength corrosion-resistant steel corrugated pipe manufacturing process comprises the following steps:
step one, raw material preparation: preparing a stainless steel plate, a stainless steel block and a stainless steel connecting spring with proper sizes;
step two, calendaring and forging: continuously rolling and forging the stainless steel plate with proper wall thickness by using rolling forging equipment to obtain a hot rolled stainless steel plate with high strength and high mechanical property, a reinforced assembling plate and a sliding plate;
step three, rolling a tube blank: rolling and adjusting the hot rolled stainless steel plate with high strength and high mechanical property by using rolling mill equipment to obtain a steel pipe blank, a connecting ring A and a connecting ring B with standard sizes;
step four, stamping and forming: carrying out external surface corrugated forming on the steel pipe blank with the standard size by using corrugated forming equipment to obtain the steel corrugated pipe with the standard size;
step five, polishing and grinding: performing shape polishing and grinding on the inner surface of the standard-size corrugated steel pipe by using polishing and grinding equipment, and grinding one side surface of the stainless steel block into an arc surface to obtain an arc-shaped clamping block;
step six, punching slotted holes: grooving the connecting ring A and the connecting ring B with standard sizes by using grooving equipment, and punching the reinforced assembling plate and the connecting ring B by using punching equipment to obtain the connecting ring A with an insertion groove and a clamping groove, the reinforced assembling plate with a reinforced assembling groove, a sliding notch and an assembling hole and the connecting ring B;
step seven, installation welding: the two sliding plates are slidably arranged in the sliding slot, two ends of a connecting spring are respectively welded between the two sliding plates by utilizing welding equipment, the sliding plates are welded with the straight sides of the arc-shaped clamping blocks, the reinforcing assembly plates are welded on the inner side of the connecting ring A, and the connecting ring A and the connecting ring B are respectively welded on two ends of the steel corrugated pipe;
step eight, surface treatment: the welded steel corrugated pipe is galvanized and sprayed with paint by using surface treatment equipment, so that the steel corrugated pipe with high strength, corrosion resistance and oxidation resistance is obtained;
step nine, checking a finished product: the high-strength, corrosion-resistant and oxidation-resistant steel corrugated pipe is subjected to pressure test and flaw detection by utilizing pressure test equipment and flaw detection equipment, so that the tightness of the high-strength, corrosion-resistant and oxidation-resistant steel corrugated pipe is ensured.
The utility model has the following beneficial effects:
1. according to the utility model, in the process of placing the axially adjacent reinforced assembly plates into the reinforced assembly groove, the corresponding two arc-shaped clamping blocks can be respectively clamped in the two sides of the clamping groove, namely, the connecting piece can be used for preliminarily connecting the connecting ring A and the connecting ring B, the positions of the preliminarily connected connecting ring A and connecting ring B are relatively fixed, namely, the connecting ring A and the connecting ring B are preliminarily fixed, so that the connecting ring A and the connecting ring B can be fastened and connected by subsequent bolt pieces conveniently.
2. According to the utility model, when two adjacent high-strength corrosion-resistant steel corrugated pipes are axially connected, the connecting piece can be used for preliminarily connecting the connecting ring A and the connecting ring B without damaging the structure of the steel corrugated pipes, the bolt piece is used for fastening and connecting the connecting ring A and the connecting ring B, and the preliminary connection of the connecting piece and the fastening and connecting of the bolt piece are mutually matched, so that the axial connection strength between the two adjacent steel corrugated pipes can be enhanced, and the overall bearing capacity is improved.
Drawings
FIG. 1 is a schematic view of a first external structure of a high-strength corrosion-resistant steel corrugated pipe according to the present utility model;
FIG. 2 is a schematic view of a second external structure of a high-strength corrosion-resistant steel bellows according to the present utility model;
FIG. 3 is a schematic view of a third external structure of a high-strength corrosion-resistant steel bellows according to the present utility model;
FIG. 4 is a schematic cross-sectional view of a high-strength corrosion-resistant steel bellows according to the present utility model;
FIG. 5 is a schematic view of a fourth external structure of a high-strength corrosion-resistant steel bellows according to the present utility model;
fig. 6 is an enlarged schematic view of the structure at a in fig. 5.
In the figure: 1. a steel corrugated pipe; 2. a connecting ring A; 3. a connecting ring B; 4. reinforcing the assembling plate; 5. reinforcing the assembly groove; 6. assembling holes; 7. a bolt member; 71. a fastening bolt; 72. a fastening nut; 73. an outer gasket; 74. an inner gasket; 8. a connecting piece; 81. an insertion groove; 82. a clamping groove; 83. a slide slot; 84. a slide plate; 85. a connecting spring; 86. and an arc-shaped clamping block.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As shown in fig. 1-6, the high-strength corrosion-resistant steel corrugated pipe provided by the utility model comprises a steel corrugated pipe 1, wherein the section of the steel corrugated pipe 1 is in a round shape, the inner wall of the steel corrugated pipe 1 is smooth, the outer wall of an outer steel corrugated pipe 12 is corrugated, and the corrugated structure of the outer wall of the steel corrugated pipe can enable reasonable stress and uniform load distribution of culvert pavements;
the two ends of the steel corrugated pipe 1 are fixedly connected with a connecting ring A2 and a connecting ring B3 respectively, the inner shaft of the connecting ring 2 is symmetrically embedded with a reinforcing assembling plate 4, the inner shaft of the connecting ring B3 is symmetrically provided with reinforcing assembling grooves 5 matched with the reinforcing assembling plate 4, the outer parts of the reinforcing assembling plate 4 and the connecting ring B3 are respectively provided with assembling holes 6, the axially adjacent connecting rings A2 and B3 are axially connected through a plurality of bolt pieces 7, each bolt piece 7 comprises a fastening bolt 71 capable of penetrating through the assembling holes 6, the outer part of each fastening bolt 71 is in threaded connection with a fastening nut 72, the outer part of each fastening bolt 71 is provided with an outer gasket 73 and an inner gasket 74, the outer gasket 73 can be attached to the outer side of the connecting ring B3, the inner gasket 74 can be attached to the inner side of the reinforcing assembling plate 4, the middle parts of the outer gasket 73 and the inner gasket 74 are respectively provided with holes, after the axially adjacent reinforcing assembling plates 4 are arranged in the reinforcing assembling grooves 5, the fastening bolts 71 penetrate through the outer gasket 73, the connecting ring B3, the reinforcing assembling plates 4 and the inner holes 6 and the inner gaskets 74 are tightly connected with the adjacent fastening bolts 2A, and the fastening bolts 72 can be connected with the adjacent fastening bolts 2;
when connecting the connecting ring A2 and the connecting ring B3 which are axially adjacent through a plurality of bolt pieces 7, a corrosion-resistant sealing gasket can be placed on the connecting ring A2 and the connecting ring B3 which are axially adjacent, the corrosion-resistant sealing gasket can be matched with the end face of the connecting ring A2, and the arrangement of the corrosion-resistant sealing gasket can ensure the connection tightness between the connecting ring A2 and the connecting ring B3;
be provided with the connecting piece 8 that is used for strengthening the two connectivity between axially adjacent go-between A2 and go-between B3, connecting piece 8 includes that axisymmetric seting up at the outside draw-in groove 81 of go-between A2, axisymmetric seting up at the inside joint groove 82 of go-between A2 and go-between B3, the draw-in groove 81 is linked together with draw-in groove 82, the width of draw-in groove 81 is close with the shortest distance between two arc fixture blocks 86, the width of draw-in groove 82 is close with the longest distance between two arc fixture blocks 86, the inside sliding connection of spout groove 83 has two slide 84, the common fixedly connected with coupling spring 85 of one side that two slide 84 are close to each other, coupling spring 85 is located the inside of slide slot 83, the equal fixedly connected with arc fixture block of one side that two slide 84 are kept away from each other, the preliminary connection of go-between A2 and go-between B3 of butt axis adjacent go-between can accomplish the go-between A2 and go-between B3 through connecting piece 8, under the condition that the preliminary connection of not destroying steel pipe 1 structure, the preliminary connection of connecting piece 8 and the fastening connection of two adjacent steel pipes 1 of reinforcing member 7 can be connected with the axial corrugated connection intensity of bolt 1.
In this embodiment: when preparing the high-strength corrosion-resistant steel corrugated pipe, the following steps are needed:
(1) Raw material preparation: preparing a stainless steel plate, a stainless steel block and a stainless steel connecting spring 85 with proper sizes; (2) calendaring forging: continuously rolling and forging the stainless steel plate with proper wall thickness by using rolling forging equipment to obtain a hot rolled stainless steel plate with high strength and high mechanical property, a reinforced assembled plate 4 and a sliding plate 84; (3) rolling a tube blank: rolling and adjusting the hot rolled stainless steel plate with high strength and high mechanical property by using rolling mill equipment to obtain a steel pipe blank, a connecting ring A2 and a connecting ring B3 with standard sizes; (4) stamping and forming: carrying out external surface corrugated forming on the steel pipe blank with the standard size by using corrugated forming equipment to obtain a steel corrugated pipe 1 with the standard size; and (5) polishing: performing shape polishing and grinding on the inner surface of the standard-size corrugated steel pipe 1 by using polishing and grinding equipment, and grinding one side surface of the stainless steel block into an arc surface to obtain an arc-shaped clamping block 86; (6) punching slot holes: grooving the connecting ring A2 and the connecting ring B3 with standard sizes by using grooving equipment, and punching the reinforced assembly plate 4 and the connecting ring B3 by using punching equipment to obtain the connecting ring A2 with an insertion groove 81 and a clamping groove 82, the reinforced assembly plate 4 and the connecting ring B3 with a reinforced assembly groove 5, a sliding chute opening 83 and an assembly hole 6; (7) installation welding: the two sliding plates 84 are slidably arranged in the sliding slot 83, two ends of the connecting spring 85 are respectively welded between the two sliding plates 84 by utilizing welding equipment, the sliding plates 84 are welded with the straight sides of the arc-shaped clamping blocks 86, the reinforced assembling plate 4 is welded on the inner side of the connecting ring A2, and the connecting ring A2 and the connecting ring B3 are respectively welded at two ends of the steel corrugated pipe 1; (8) surface treatment: the welded steel corrugated pipe 1 is galvanized and sprayed with paint by using surface treatment equipment, and the steel corrugated pipe 1 with high strength, corrosion resistance and oxidation resistance is obtained; (9) finished product inspection: the high-strength, corrosion-resistant and oxidation-resistant steel corrugated pipe 1 is subjected to pressure test and flaw detection by using pressure test equipment and flaw detection equipment so as to ensure the tightness of the high-strength, corrosion-resistant and oxidation-resistant steel corrugated pipe 1;
when two axially adjacent high-strength corrosion-resistant steel corrugated pipes are connected, the following operations are needed: firstly, the axially adjacent reinforcing assembling plates 4 are placed in the reinforcing assembling groove 5, in the process of placing the axially adjacent reinforcing assembling plates 4 in the reinforcing assembling groove 5, two arc-shaped clamping blocks 86 on the connecting ring B3 are abutted by the inserting groove 81, so that two sliding plates 84 slide in the sliding groove 83 towards directions close to each other and compress the connecting spring 85, when the two arc-shaped clamping blocks 86 on the connecting ring B3 completely enter the clamping groove 82, the compressed connecting spring 85 drives the two arc-shaped clamping blocks 86 to be respectively clamped on two sides of the clamping groove 82 through the two sliding plates 84, namely, the connecting piece 8 can initially connect the connecting ring A2 and the connecting ring B3;
then, the fastening bolts 71 pass through the outer gaskets 73, the connecting rings B3 and the splicing holes 6 and the inner gaskets 74 on the reinforced splicing plates 4, and the fastening nuts 72 are screwed down, so that the outer gaskets 73 are tightly attached to the outer sides of the connecting rings B3, and the inner gaskets 74 are tightly attached to the inner sides of the reinforced splicing plates 4, namely, the connecting rings A2 and the connecting rings B3 can be fastened and connected by the bolt pieces 7 at the moment;
when two high-strength corrosion-resistant steel corrugated pipes adjacent to each other in the axial direction are connected, the connecting piece 8 can be used for preliminarily connecting the connecting ring A2 and the connecting ring B3 under the condition that the structure of the steel corrugated pipe 1 is not damaged, the connecting ring A2 and the connecting ring B3 are fastened and connected by the bolt piece 7, and the axial connection strength between the two adjacent steel corrugated pipes 1 can be enhanced by mutually matching the preliminary connection of the connecting piece 8 and the fastening connection of the bolt piece 7, so that the overall bearing capacity is improved.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a high strength corrosion-resistant steel corrugated pipe, includes steel corrugated pipe (1), its characterized in that: the two ends of the steel corrugated pipe (1) are fixedly connected with a connecting ring A (2) and a connecting ring B (3) respectively, reinforcing assembling plates (4) are symmetrically embedded in the inner shaft of the connecting ring (2), reinforcing assembling grooves (5) matched with the reinforcing assembling plates (4) are symmetrically formed in the inner shaft of the connecting ring B (3), assembling holes (6) are formed in the outer parts of the reinforcing assembling plates (4) and the connecting ring B (3), and the connecting ring A (2) and the connecting ring B (3) which are axially adjacent are axially connected through a plurality of bolt pieces (7);
the connecting piece (8) used for reinforcing connectivity of the connecting ring A (2) and the connecting ring B (3) are arranged between the connecting ring A (2) and the connecting ring B (3) which are axially adjacent, the connecting piece (8) comprises an inserting groove (81) which is axially symmetrically arranged outside the connecting ring A (2), a clamping groove (82) which is axially symmetrically arranged inside the connecting ring A (2) and a sliding groove opening (83) which is axially symmetrically arranged outside the connecting ring B (3), two sliding plates (84) are connected in a sliding mode inside the sliding groove opening (83), connecting springs (85) are fixedly connected to one sides, close to each other, of the two sliding plates (84) in a mutually-far-away mode, and arc-shaped clamping blocks (86) are fixedly connected to one sides of the sliding plates (84).
2. A high strength corrosion resistant steel corrugated pipe according to claim 1, wherein: the section of the steel corrugated pipe (1) is in a round shape, the inner wall of the steel corrugated pipe (1) is smooth, and the outer wall of the outer steel corrugated pipe (12) is corrugated.
3. A high strength corrosion resistant steel corrugated pipe according to claim 1, wherein: a corrosion-resistant sealing gasket can be arranged between the connecting ring A (2) and the connecting ring B (3) which are axially adjacent, and can be matched with the end face of the connecting ring A (2).
4. A high strength corrosion resistant steel corrugated pipe according to claim 1, wherein: each bolt piece (7) comprises a fastening bolt (71) capable of penetrating through the assembling hole (6), a fastening nut (72) is connected to the outside of the fastening bolt (71) in a threaded mode, and an outer gasket (73) and an inner gasket (74) are arranged outside the fastening bolt (71).
5. The high strength corrosion resistant steel corrugated pipe according to claim 4, wherein: the outer gasket (73) can be attached to the outer side of the connecting ring B (3), the inner gasket (74) can be attached to the inner side of the reinforcing assembly plate (4), and holes are formed in the middle of the outer gasket (73) and the middle of the inner gasket (74).
6. A high strength corrosion resistant steel corrugated pipe according to claim 1, wherein: the insertion groove (81) is communicated with the clamping groove (82), and the connecting spring (85) is located in the sliding groove opening (83).
7. A high strength corrosion resistant steel corrugated pipe according to claim 1, wherein: the width of the insertion groove (81) is similar to the shortest distance between the two arc-shaped clamping blocks (86), and the width of the clamping groove (82) is similar to the longest distance between the two arc-shaped clamping blocks (86).
8. The process for preparing high-strength corrosion-resistant steel corrugated pipe according to claim 1, wherein the process comprises the following steps of: the method comprises the following steps:
step one, raw material preparation: preparing a stainless steel plate, a stainless steel block and a stainless steel connecting spring (85) with proper sizes;
step two, calendaring and forging: continuously rolling and forging the stainless steel plate with proper wall thickness by using rolling forging equipment to obtain a hot rolled stainless steel plate with high strength and high mechanical property, a reinforced assembling plate (4) and a sliding plate (84);
step three, rolling a tube blank: rolling and adjusting the hot rolled stainless steel plate with high strength and high mechanical property by using rolling mill equipment to obtain a steel pipe blank, a connecting ring A (2) and a connecting ring B (3) with standard sizes;
step four, stamping and forming: carrying out corrugated forming on the outer surface of a standard-size steel pipe blank by using corrugated forming equipment to obtain a standard-size steel corrugated pipe (1);
step five, polishing and grinding: performing shape polishing and grinding on the inner surface of a standard-size steel corrugated pipe (1) by using polishing and grinding equipment, and grinding one side surface of a stainless steel block into an arc surface to obtain an arc-shaped clamping block (86);
step six, punching slotted holes: grooving the connecting ring A (2) and the connecting ring B (3) with standard sizes by using grooving equipment, and punching the reinforced assembly plate (4) and the connecting ring B (3) by using punching equipment to obtain the connecting ring A (2) with an insertion groove (81) and a clamping groove (82), the reinforced assembly plate (4) with a reinforced assembly groove (5), a chute opening (83) and an assembly hole (6) and the connecting ring B (3);
step seven, installation welding: two sliding plates (84) are slidably arranged in a sliding slot (83), two ends of a connecting spring (85) are respectively welded between the two sliding plates (84) by utilizing welding equipment, the sliding plates (84) are welded with the straight sides of arc-shaped clamping blocks (86), a reinforcing assembling plate (4) is welded on the inner side of a connecting ring A (2), and a connecting ring A (2) and a connecting ring B (3) are respectively welded on two ends of a steel corrugated pipe (1);
step eight, surface treatment: the welded steel corrugated pipe (1) is galvanized and sprayed with paint by using surface treatment equipment, so that the high-strength, corrosion-resistant and oxidation-resistant steel corrugated pipe (1) is obtained;
step nine, checking a finished product: the high-strength, corrosion-resistant and oxidation-resistant steel corrugated pipe (1) is subjected to pressure testing and flaw detection by utilizing pressure testing equipment and flaw detection equipment, so that tightness of the high-strength, corrosion-resistant and oxidation-resistant steel corrugated pipe (1) is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311249782.8A CN117418486A (en) | 2023-09-25 | 2023-09-25 | High-strength corrosion-resistant steel corrugated pipe and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311249782.8A CN117418486A (en) | 2023-09-25 | 2023-09-25 | High-strength corrosion-resistant steel corrugated pipe and preparation process thereof |
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| CN202311249782.8A Pending CN117418486A (en) | 2023-09-25 | 2023-09-25 | High-strength corrosion-resistant steel corrugated pipe and preparation process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117955025A (en) * | 2024-03-27 | 2024-04-30 | 国网山东省电力公司莱州市供电公司 | Power supply pipeline installation fastener |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117955025A (en) * | 2024-03-27 | 2024-04-30 | 国网山东省电力公司莱州市供电公司 | Power supply pipeline installation fastener |
| CN117955025B (en) * | 2024-03-27 | 2024-05-31 | 国网山东省电力公司莱州市供电公司 | Power supply pipeline installation fastener |
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