CN216480186U - Corrosion-resistant steel plate structure - Google Patents
Corrosion-resistant steel plate structure Download PDFInfo
- Publication number
- CN216480186U CN216480186U CN202122434922.1U CN202122434922U CN216480186U CN 216480186 U CN216480186 U CN 216480186U CN 202122434922 U CN202122434922 U CN 202122434922U CN 216480186 U CN216480186 U CN 216480186U
- Authority
- CN
- China
- Prior art keywords
- layer
- corrosion
- steel sheet
- dovetail
- resistant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010935 stainless steel Substances 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 81
- 239000010959 steel Substances 0.000 claims abstract description 81
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 239000010410 layer Substances 0.000 claims description 101
- 238000005260 corrosion Methods 0.000 claims description 46
- 230000007797 corrosion Effects 0.000 claims description 44
- 239000000758 substrate Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 13
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 239000003973 paint Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 229950011008 tetrachloroethylene Drugs 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 6
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 229920000767 polyaniline Polymers 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000005543 nano-size silicon particle Substances 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 2
- 238000005256 carbonitriding Methods 0.000 claims 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 6
- 238000011900 installation process Methods 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 239000004843 novolac epoxy resin Substances 0.000 description 2
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Images
Landscapes
- Laminated Bodies (AREA)
- Building Environments (AREA)
Abstract
The utility model discloses a corrosion-resistant steel plate structure, which relates to the technical field of steel structures and solves the problems that the surface of a steel structure is easy to corrode in long-term use and the joint of a steel plate is worn due to mechanical collision in the installation process, so that a coating is damaged and the service life of the steel structure is influenced Chemical resistance, weather resistance and the like.
Description
Technical Field
The utility model relates to the technical field of steel structures, in particular to a corrosion-resistant steel plate structure.
Background
The steel structure is a structure formed by steel materials, is one of main building structure types, and mainly comprises steel beams, steel columns, steel trusses and other members made of section steel, steel plates and the like, and the steel has the characteristics of high strength, light dead weight, good integral rigidity and strong deformability, so the steel structure is particularly suitable for building large-span, ultrahigh and extra-heavy buildings; the material has good homogeneity and isotropy, belongs to an ideal elastomer and most conforms to the basic assumption of general engineering mechanics; the material has good plasticity and toughness, can deform greatly and can bear dynamic load well; the construction period is short; the method has high industrialization degree and can be used for professional production with high mechanization degree.
The corrosion of the steel structure is one of the serious problems, when the coating material or coating of the steel structure is damaged, the interaction between the substrate material and the surrounding atmosphere environment easily causes the corrosion problems, generally including uniform corrosion, pitting corrosion, crevice corrosion, stress corrosion, corrosion fatigue and the like, which seriously threatens the normal use of the steel structure and even causes some serious life and property loss accidents.
Under the long-time external action, corrosion defects such as pulverization, cracking and the like are inevitably generated on the anticorrosive coating of the steel structure, even aging failure is generated, at the moment, the steel is easy to be in direct contact with surrounding atmosphere, water and other environment media to generate electrochemical corrosion, the corrosion development process is fast, once the corrosion occurs on the surface of the steel structure, a corroded corrosion pit can be rapidly developed from the bottom of the pit to the depth, and the corrosion of the steel is aggravated. In addition, the corrosion of the steel structure is most likely to occur at the connecting position between the components, and the steel plate is often abraded at the connecting position of the plate and the plate due to mechanical collision in the installation process, so that the coating is damaged, and the corrosion speed of the steel plate is further accelerated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: the utility model provides a corrosion-resistant steel plate structure to solve the easy corruption of steel construction surface and make the steel sheet junction suffer wearing and tearing because of mechanical collision in the installation, lead to the coating to be destroyed, influence the life's of steel construction problem.
The utility model specifically adopts the following technical scheme for realizing the purpose:
the utility model provides a corrosion-resistant steel plate structure, includes the steel sheet substrate, the coating of steel sheet substrate surface has the corrosion-resistant layer, one side of steel sheet substrate is equipped with the dovetail block, fixed connection elasticity spacing block on the dovetail block, the opposite side of steel sheet substrate be provided with the dovetail of dovetail block looks adaptation, be equipped with the spacing groove in the dovetail, elasticity spacing block and spacing groove looks adaptation, the dovetail surface reaches the steel sheet surface of dovetail place side is equipped with stand wear and tear layer.
The use and working process comprises the following steps: the corrosion-resistant layer is coated on the surface of the steel plate substrate to protect the steel plate substrate, so that the effects of good durability and good corrosion resistance are achieved; the connection between the steel plates is realized by clamping the dovetail groove through the dovetail block and clamping the elastic limiting part into the limiting groove. Specifically, the dovetail block is clamped in the dovetail groove and can slide along the dovetail groove, and the dovetail block is detachably connected in a sliding manner; the elastic limiting part is clamped into the limiting groove to play a role in positioning in the sliding process, so that the steel plate is accurately installed, and the effect of convenient installation and use is achieved; the abrasion-resistant layer is arranged at the joint of the steel plate and the steel plate, so that the corrosion-resistant layer at the joint can be prevented from being damaged in the installation process, and the corrosion-resistant effect is achieved.
Further, the corrosion-resistant layer sequentially comprises a spacing layer, a primer layer, a finish paint layer, a waterproof layer and a weather-resistant layer from bottom to top.
Further, the spacing layer is a flexible epoxy resin adhesive layer, the primer layer is an epoxy zinc-rich layer, the finish paint layer is a novolac epoxy resin layer, the waterproof layer is a polyaniline modified mica iron oxide layer, and the weather-resistant layer is a coating of a mixture of nano-silica and perchloro-ethylene resin.
Further, the thickness of the corrosion-resistant layer is 0.3-0.6 mm.
Furthermore, the elastic limiting component comprises an elastic component and a bump, the elastic component is fixed on the dovetail block, and the bump is fixedly connected to the elastic component.
Further, the upper surface of the steel plate base material is corrugated.
Further, the wear-resistant layer is a carbonitrided layer, and the thickness of the wear-resistant layer is 0.6-1.0 mm.
Furthermore, the elastic limiting parts and the limiting grooves are at least two groups.
The utility model has the following beneficial effects:
1. the dovetail grooves are connected in a sliding mode through the dovetail blocks to achieve connection among the steel plates, and the steel plates are detachably connected in the sliding mode and convenient to install and use; the elastic limiting part is clamped into the limiting groove to play a role in positioning, so that the steel plate is accurately installed; the abrasion-resistant layer is arranged at the joint of the steel plate and the steel plate, so that the corrosion-resistant layer at the joint can be prevented from being damaged in the installation process, and the corrosion-resistant effect is achieved.
2. The interlayer, the primer layer, the finish paint layer, the waterproof layer and the weather-resistant layer are adopted to carry out multiple protection on the steel plate substrate, the effects of simple process, good durability and good corrosion resistance are realized, the steel plate structure has excellent water resistance, chemical resistance and weather resistance, and the protective layer on the steel plate substrate can be widely applied to various indoor and outdoor metal substrates.
3. The spacing layer can effectively prevent the steel plate substrate from contacting with air and water, so that the substrate is prevented from being oxidized and corroded, the peeling strength of the coating can be effectively improved by taking the flexible epoxy resin adhesive as the spacing layer, and the anti-corrosion effect is further enhanced.
4. The nano titanium dioxide can improve the ultraviolet aging resistance and the heat aging resistance of the coating, and can also improve the adhesive force, the impact strength and the flexibility; the perchloroethylene resin has extremely stable chemical properties, can improve the luster and adhesive force of a coating, and has the function of corrosion resistance; the nano silicon dioxide and the perchloro-ethylene resin enable the weather-resistant layer to have good light resistance and weather resistance.
5. Compared with a common coating, the polyaniline modified mica iron oxide layer has strong corrosion resistance and permeability resistance, and plays a good role in protecting a steel plate base material.
6. The flute form has the advantage that support area is big, intensity is high, still has stronger three-dimensional sense, has building aesthetic effect concurrently, and then satisfies current market demand, has great application scope.
7. The arrangement of at least two groups of elastic limiting parts and limiting grooves has the advantages of accurate positioning, strong stability and convenient operation.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a schematic structural view of a corrosion-resistant layer of the present invention;
FIG. 4 is a schematic view of the structure of the elastic limiting member of the present invention;
reference numerals:
the material comprises, by weight, 1-a steel plate substrate, 2-a corrosion-resistant layer, 3-a dovetail block, 4-a limiting component, 5-a dovetail groove, 6-a limiting groove, 7-a wear-resistant layer, 21-a spacing layer, 22-a primer layer, 23-a finish paint layer, 24-a waterproof layer and 25-a weather-resistant layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1-2, the embodiment provides a corrosion-resistant steel plate structure, including steel plate substrate 1, steel plate substrate 1 surface coating has corrosion-resistant layer 2, one side of steel plate substrate 1 is equipped with dovetail block 3, fixed connection has elasticity stop part 4 on the dovetail block 3, the opposite side of steel plate substrate 1 is provided with dovetail 5 with dovetail block 3 looks adaptation, be equipped with spacing groove 6 in the dovetail 5, elasticity stop part 4 and 6 looks adaptations of spacing groove, the dovetail 5 surface and the steel plate surface of dovetail 5 place side are equipped with wear-resistant layer 7.
The dovetail grooves 5 are connected in a sliding mode through the dovetail blocks 3 to achieve connection among the steel plates, and the steel plates are detachably connected in the sliding mode and convenient to install and use; the elastic limiting part 4 is clamped into the limiting groove 6 to play a role in positioning, so that the steel plate is accurately installed; the abrasion-resistant layer 7 is arranged at the joint of the steel plate and the steel plate, so that the corrosion-resistant layer 2 at the joint can be prevented from being damaged in the mounting process, and the corrosion resistance effect is achieved.
Example 2
As shown in fig. 3, the corrosion-resistant layer 2 includes, in order, a spacer layer 21, a primer layer 22, a topcoat layer 23, a waterproof layer 24, and a weather-resistant layer 25, based on example 1. Further, the thickness of the corrosion-resistant layer 2 is 0.3 to 0.6 mm.
The spacing layer 21, the primer layer 22, the finish paint layer 23, the waterproof layer 24 and the weather-resistant layer 25 are adopted to carry out multiple protection on the steel plate substrate 1, so that the effects of simple process, good durability and good corrosion resistance are realized, the steel plate structure has excellent water resistance, chemical resistance and weather resistance, and the protective layer on the steel plate substrate 1 can be widely applied to various indoor and outdoor metal substrates; the spacing layer 21 can effectively prevent the steel plate base material 1 from contacting with air and water, and prevent the base material from oxidation corrosion.
Example 3
As shown in fig. 3, based on example 2, the spacing layer 21 is a flexible epoxy resin adhesive layer, the primer layer 22 is an epoxy zinc-rich layer, the topcoat layer 23 is a novolac epoxy resin layer, the waterproof layer 24 is a polyaniline-modified mica iron oxide layer, and the weather-resistant layer 25 is a coating of a mixture of nano-silica and perchloro-ethylene resin.
The spacer layer 21 has a thickness of 20-80 μm.
The flexible epoxy resin adhesive layer is at least one of bisphenol A type epoxy resin and bisphenol F type epoxy resin.
The primer layer 22 has a thickness of 80-120 μm.
The thickness of the finishing paint layer 23 is 50-125 μm.
The thickness of the waterproof layer 24 is 50-125 μm.
The weather-resistant layer 25 has a thickness of 100-150 μm.
The weathering layer 25 comprises 50-80 wt% of nano silicon dioxide and 20-50 wt% of perchloro-ethylene resin.
The flexible epoxy resin adhesive is used as the spacing layer 21, so that the peeling strength of the coating can be effectively improved, and the anti-corrosion effect is further enhanced. The nano titanium dioxide can improve the ultraviolet aging resistance and the heat aging resistance of the coating, and can also improve the adhesive force, the impact strength and the flexibility; the perchloroethylene resin has extremely stable chemical properties, can improve the luster and adhesive force of a coating, and has the function of corrosion resistance; the nano-silica and the perchloro-ethylene resin make the weather-resistant layer 25 have good light and weather resistance. Compared with a common coating, the polyaniline modified mica iron oxide layer has strong corrosion resistance and permeability resistance, and plays a good role in protecting the steel plate base material 1.
Example 4
As shown in fig. 1, the upper surface of the steel plate base material 1 was corrugated in example 1.
The flute form has the advantage that support area is big, intensity is high, still has stronger three-dimensional sense, has building aesthetic effect concurrently, and then satisfies current market demand, has great application scope.
Example 5
As shown in fig. 2, according to embodiment 1, the elastic limiting member 4 includes an elastic member fixed to the dovetail block 3 and a protrusion fixedly connected to the elastic member.
Further, the elastic component comprises a spring, elastic rubber and sponge.
Further, the protrusions are preferably of spherical configuration.
Furthermore, the elastic limiting part 4 and the limiting groove 6 are at least provided with two groups.
In the steel plate connection process, firstly, the dovetail block 3 slides along the dovetail groove 5, the elastic part is in a compression state, then, the protrusion gradually approaches the limiting groove 6 in the dovetail groove 5, at the moment, the elastic part begins to stretch, and the protrusion is bounced into the limiting groove 6, so that the positioning and installation are realized. The dovetail block 3 is provided with the same number of mounting parts corresponding to the positions, and at least two groups of elastic limiting parts 4 and limiting grooves 6, so that the positioning is accurate, the stability is high, and the operation is convenient.
The dovetail block 3 is connected with the dovetail groove 5 in a sliding mode to achieve connection between steel plates, and the steel plates are detachably connected in the sliding mode and convenient to install and use; the elastic limiting part 4 is clamped into the limiting groove 6 to play a role in positioning, so that the steel plate is accurately installed; the abrasion-resistant layer 7 is arranged at the joint of the steel plate and the steel plate, so that the corrosion-resistant layer 2 at the joint can be prevented from being damaged in the mounting process, and the corrosion resistance effect is achieved. The spacing layer 21, the primer layer 22, the finish paint layer 23, the waterproof layer 24 and the weather-resistant layer 25 are adopted to carry out multiple protection on the steel plate substrate 1, so that the effects of simple process, good durability and good corrosion resistance are realized, the steel plate structure has excellent water resistance, chemical resistance and weather resistance, and the protective layer on the steel plate substrate 1 can be widely applied to various indoor and outdoor metal substrates. The utility model achieves the effects of simple process, good durability and good corrosion resistance.
Claims (8)
1. A corrosion-resistant steel sheet structure comprising a steel sheet substrate (1), characterized in that: the coating of steel sheet substrate (1) surface has corrosion-resistant layer (2), one side of steel sheet substrate (1) is equipped with dovetail block (3), fixed connection elasticity stop part (4) are gone up in dovetail block (3), the opposite side of steel sheet substrate (1) be provided with dovetail (5) of dovetail block (3) looks adaptation, be equipped with spacing groove (6) in dovetail (5), elasticity stop part (4) and spacing groove (6) looks adaptation, dovetail (5) surface reaches the steel sheet surface of dovetail (5) place side is equipped with stand wear and tear layer (7).
2. A corrosion resistant steel sheet structure according to claim 1, wherein: the corrosion-resistant layer (2) sequentially comprises a spacing layer (21), a primer layer (22), a finish paint layer (23), a waterproof layer (24) and a weather-resistant layer (25) from bottom to top.
3. A corrosion resistant steel sheet structure according to claim 2, wherein: the interlayer (21) is a flexible epoxy resin adhesive layer, the primer layer (22) is an epoxy zinc-rich layer, the finish paint layer (23) is a phenolic epoxy resin layer, the waterproof layer (24) is a polyaniline modified mica iron oxide layer, and the weather-resistant layer (25) is a coating of a mixture of nano silicon dioxide and perchloro ethylene resin.
4. A corrosion resistant steel sheet structure according to claim 2 or 3, wherein: the thickness of the corrosion-resistant layer (2) is 0.3-0.6 mm.
5. A corrosion resistant steel sheet structure according to claim 1, wherein: the elastic limiting part (4) comprises an elastic part and a convex block, the elastic part is fixed on the dovetail block (3), and the convex block is fixedly connected on the elastic part.
6. A corrosion resistant steel sheet structure according to claim 1, wherein: the upper surface of the steel plate base material (1) is corrugated.
7. A corrosion resistant steel sheet structure according to claim 1, wherein: the wear-resistant layer (7) is a carbonitriding layer, and the thickness of the wear-resistant layer (7) is 0.6-1.0 mm.
8. A corrosion resistant steel sheet structure according to claim 1, wherein: the elastic limiting parts (4) and the limiting grooves (6) are at least two groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122434922.1U CN216480186U (en) | 2021-10-09 | 2021-10-09 | Corrosion-resistant steel plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122434922.1U CN216480186U (en) | 2021-10-09 | 2021-10-09 | Corrosion-resistant steel plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216480186U true CN216480186U (en) | 2022-05-10 |
Family
ID=81437663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122434922.1U Expired - Fee Related CN216480186U (en) | 2021-10-09 | 2021-10-09 | Corrosion-resistant steel plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216480186U (en) |
-
2021
- 2021-10-09 CN CN202122434922.1U patent/CN216480186U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203427398U (en) | Corrosion-resistant and wear-resistant composite structure | |
| CN110669415B (en) | Organic coating steel plate and manufacturing method and application thereof | |
| CN109825122B (en) | Steel structure low-surface treatment anticorrosion transparent coating and coating process | |
| CN113150642A (en) | Anticorrosive coating system for outer wall of tower cylinder of ocean wind turbine generator and coating method | |
| CN210595882U (en) | Graphene modified waterborne epoxy heavy-duty anticorrosive paint | |
| CN216480186U (en) | Corrosion-resistant steel plate structure | |
| CN112831244A (en) | Color coating paint and preparation method of color coated sheet applying color coating paint | |
| CN201520940U (en) | Composite coating bridge extension joint structure | |
| CN206204769U (en) | Weathering steel ball shaped steel bearing | |
| CN209099604U (en) | A kind of closed type floor support plate with cushion performance | |
| CN210946471U (en) | Novel ocean anticorrosive support | |
| CN112547464A (en) | Support with thermal spraying metal composite coating | |
| CN219118367U (en) | Steel structure with corrosion-resistant layer | |
| CN216683612U (en) | Novel galvanized steel sheet with strong wear resistance | |
| CN220365152U (en) | Built-in fitting for construction | |
| CN206667033U (en) | Bridge bolts the safeguard structure of system | |
| CN206527027U (en) | Bus frame anticorrosion structure | |
| CN216108043U (en) | Corrosion-resistant bridge support | |
| CN219082381U (en) | Novel high-precision high-pressure-resistant valve cover | |
| CN202952599U (en) | Colored coating steel plate with selfreparing function | |
| KR101035474B1 (en) | An eco-friendly gratings | |
| CN213501308U (en) | Anti-corrosion coating structure of metal plate | |
| CN219153896U (en) | Corrosion-resistant high-strength flood prevention door | |
| CN219749113U (en) | High-strength corrosion-resistant stainless steel plate | |
| CN216157009U (en) | Durable type aluminium veneer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220510 |