CN217007116U - Flat butt weld contrast test block of clad steel sheet for bridge - Google Patents
Flat butt weld contrast test block of clad steel sheet for bridge Download PDFInfo
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- CN217007116U CN217007116U CN202122768913.6U CN202122768913U CN217007116U CN 217007116 U CN217007116 U CN 217007116U CN 202122768913 U CN202122768913 U CN 202122768913U CN 217007116 U CN217007116 U CN 217007116U
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Abstract
The utility model relates to a composite steel plate flat plate butt weld joint test block for a bridge, which comprises a stainless steel clad plate (1), a carbon steel substrate (2) and a coating layer (3) which are sequentially arranged from top to bottom, wherein a weld joint fusion area (4) is arranged in the middle of the stainless steel clad plate (1) and the carbon steel substrate (2), a plurality of transverse through holes (5) are arranged in the weld joint fusion area (4), and the transverse through holes (5) are arranged at intervals from top to bottom. According to the composite steel plate flat plate butt weld reference block for the bridge, the surface of a stainless steel composite plate and the surface of a carbon steel coating layer are respectively selected as detection surfaces, and quality detection and after-service maintenance detection of the composite steel plate flat plate butt weld in the bridge manufacturing stage can be performed.
Description
Technical Field
The utility model relates to a composite steel plate flat plate butt weld contrast test block for a bridge, and belongs to the technical field of nondestructive testing of bridge steel structures.
Background
The thin stainless steel plate and the carbon steel substrate form a whole by adopting a certain process for the composite steel plate for the bridge, when the composite steel plate is used as a bridge deck plate of the bridge, the corrosion resistance and the oxidation resistance of the stainless steel and the mechanical properties of the carbon steel, such as high strength, high toughness and impact resistance, are combined, the corrosion resistance of the bridge deck plate can be improved on the basis of ensuring the mechanical property requirements of the steel bridge deck plate, such as strength, rigidity and the like, and the thickness of the stainless steel and the carbon steel commonly used in the bridge of the composite steel plate is 3mm +16mm or 3mm +20 mm. Along with the application of the composite steel plate in the industrial fields of bridges and the like, the research on the detection standard and the detection method also draws corresponding attention, and the GB/T7734-2015 ultrasonic detection method for the composite steel plate specifies that the ultrasonic detection method is suitable for detecting the combination quality of the composite surface of a rolled composite steel plate and an explosion-welded composite steel plate with the basic thickness of more than 4mm, and adopts a single-crystal probe or a double-crystal probe longitudinal wave pulse method to evaluate and grade the combination part by bottom waves or defect waves. The relevant granted utility model patents are: a composite weld ultrasonic wave adjusts test block (CN208795700U), a test block (CN208696591U) that is used for composite weld to compare, a test block (CN209946081U) that is used for compound steel sheet weld ultrasonic testing, etc., but the compound steel sheet preparation of big thickness has certain degree of difficulty.
The ultrasonic phased array technology can provide detection images for visually displaying defects and can be stored for a long time, and a reasonably applicable reference block is needed when the ultrasonic phased array detection technology is applied to the composite steel plate flat butt weld for the bridge, so that the composite steel plate butt weld reference block for the bridge is provided.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a reference block for a butt weld of a composite steel plate for a bridge in the prior art, which can be used for ultrasonic phased array detection or ultrasonic detection of the butt weld of the composite steel plate in the bridge manufacturing stage, and can also be used for maintenance detection of the butt weld of the composite steel plate after the bridge is in service.
The technical scheme adopted by the utility model for solving the problems is as follows: the utility model provides a dull and stereotyped butt weld contrast test block of clad steel plate for bridge, it includes stainless steel clad plate, carbon steel base plate and the application layer that top-down arranged gradually, stainless steel clad plate and carbon steel base plate middle part are provided with the weld fusion district, be provided with a plurality of horizontal through-holes in the weld fusion district, a plurality of horizontal through-holes are interval arrangement from top to bottom.
Optionally, the number of the transverse through holes is 3-4.
Optionally, the diameter of the transverse through hole is 2 mm.
Optionally, the quantity of horizontal through-hole is 4, and top-down is first horizontal through-hole, the horizontal through-hole of second, the horizontal through-hole of third and the horizontal through-hole of fourth in proper order, first horizontal through-hole centre of circle is apart from contrast test block upper surface 3.0mm, the horizontal through-hole centre of circle of second is apart from contrast test block upper surface 8.0mm, the horizontal through-hole centre of circle of third is apart from contrast test block upper surface 13.0mm, the horizontal through-hole of fourth is apart from contrast test block lower surface 3.0 mm.
Optionally, when the thickness of the carbon steel substrate is less than 18mm, no transverse through hole is arranged in the weld joint fusion zone.
Optionally, the preparation process of the coating layer sequentially comprises substrate treatment, primer spraying, intermediate paint spraying and finish paint spraying.
Optionally, the overall thickness of the reference block is 50 mm.
Compared with the prior art, the utility model has the advantages that:
according to the composite steel plate flat plate butt weld reference block for the bridge, the surface of a stainless steel composite plate and the surface of a carbon steel coating layer are respectively selected as detection surfaces, and quality detection and after-service maintenance detection of the composite steel plate flat plate butt weld in the bridge manufacturing stage can be performed.
Drawings
Fig. 1 is a schematic structural diagram of a composite steel plate flat plate butt weld reference block for a bridge.
Wherein:
stainless steel clad plate 1
Coating layer 3
A transverse through hole 5.
Detailed Description
As shown in fig. 1, the composite steel plate flat plate butt weld comparison test block for the bridge comprises a stainless steel clad plate 1, a carbon steel substrate 2 and a coating layer 3 which are sequentially arranged from top to bottom, wherein a weld fusion area 4 is arranged in the middle of the stainless steel clad plate 1 and the carbon steel substrate 2, a plurality of transverse through holes 5 are arranged in the weld fusion area 4, and the plurality of transverse through holes 5 are arranged at intervals from top to bottom;
the number of the transverse through holes 5 is 3-4, and the diameter of each transverse through hole 5 is 2 mm;
the number of the transverse through holes 5 is preferably 4, the transverse through holes are a first transverse through hole 51, a second transverse through hole 52, a third transverse through hole 53 and a fourth transverse through hole 54 from top to bottom in sequence, the center of the first transverse through hole 51 is 3.0mm away from the upper surface of the comparison test block, the center of the second transverse through hole 52 is 8.0mm away from the upper surface of the comparison test block, the center of the third transverse through hole 53 is 13.0mm away from the upper surface of the comparison test block, and the center of the fourth transverse through hole 54 is 3.0mm away from the lower surface of the comparison test block;
when the thickness of the carbon steel substrate 2 is less than 18mm, no transverse through hole 5 is arranged in the weld joint fusion zone 4;
the preparation process of the coating layer 3 comprises the steps of substrate treatment, primer spraying, intermediate paint spraying and finish paint spraying in sequence;
the overall thickness of the reference block was 50 mm.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides a dull and stereotyped butt weld reference block of clad steel plate for bridge which characterized in that: the welding line welding device comprises a stainless steel clad plate (1), a carbon steel substrate (2) and a coating layer (3) which are sequentially arranged from top to bottom, wherein a welding line fusion area (4) is arranged in the middle of the stainless steel clad plate (1) and the carbon steel substrate (2), a plurality of transverse through holes (5) are arranged in the welding line fusion area (4), and the plurality of transverse through holes (5) are arranged at intervals from top to bottom.
2. The composite steel plate flat plate butt weld comparison test block for the bridge according to claim 1, which is characterized in that: the number of the transverse through holes (5) is 3-4.
3. The composite steel plate flat plate butt weld comparison test block for the bridge according to claim 1, which is characterized in that: the diameter of the transverse through hole (5) is 2 mm.
4. The composite steel plate flat plate butt weld comparison test block for the bridge according to claim 2, which is characterized in that: the quantity of violently through-hole (5) is 4, and top-down is first violently through-hole (51), horizontal through-hole of second (52), horizontal through-hole of third (53) and horizontal through-hole of fourth (54) in proper order, first violently through-hole (51) centre of a circle is apart from contrast test block upper surface 3.0mm, horizontal through-hole of second (52) centre of a circle is apart from contrast test block upper surface 8.0mm, horizontal through-hole of third (53) centre of a circle is apart from contrast test block upper surface 13.0mm, horizontal through-hole of fourth (54) is apart from contrast test block lower surface 3.0 mm.
5. The composite steel plate flat plate butt weld comparison test block for the bridge according to claim 1, which is characterized in that: when the thickness of the carbon steel substrate (2) is smaller than 18mm, a transverse through hole (5) is not arranged in the welding seam fusion area (4).
6. The composite steel plate flat plate butt weld comparison test block for the bridge according to claim 1, which is characterized in that: the overall thickness of the reference block was 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122768913.6U CN217007116U (en) | 2021-11-12 | 2021-11-12 | Flat butt weld contrast test block of clad steel sheet for bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122768913.6U CN217007116U (en) | 2021-11-12 | 2021-11-12 | Flat butt weld contrast test block of clad steel sheet for bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217007116U true CN217007116U (en) | 2022-07-19 |
Family
ID=82381057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122768913.6U Active CN217007116U (en) | 2021-11-12 | 2021-11-12 | Flat butt weld contrast test block of clad steel sheet for bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217007116U (en) |
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2021
- 2021-11-12 CN CN202122768913.6U patent/CN217007116U/en active Active
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