CN113406198B - Welding seam detection device for steel construction engineering - Google Patents
Welding seam detection device for steel construction engineering Download PDFInfo
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- CN113406198B CN113406198B CN202110451646.1A CN202110451646A CN113406198B CN 113406198 B CN113406198 B CN 113406198B CN 202110451646 A CN202110451646 A CN 202110451646A CN 113406198 B CN113406198 B CN 113406198B
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- 238000001514 detection method Methods 0.000 title claims abstract description 59
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 26
- 239000010959 steel Substances 0.000 title claims abstract description 26
- 238000003466 welding Methods 0.000 title claims abstract description 20
- 238000010276 construction Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 230000004224 protection Effects 0.000 claims abstract description 15
- 230000001681 protective effect Effects 0.000 claims description 26
- 238000004804 winding Methods 0.000 claims description 10
- 230000002457 bidirectional effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 230000009471 action Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 6
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009979 protective mechanism Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/267—Welds
- G01N2291/2675—Seam, butt welding
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a welding seam detection device for steel structure engineering, which comprises an outer box, a box cover and a detection pen, wherein the top of the box cover is fixedly connected with a lifting handle, a wire collecting mechanism and a protection mechanism are arranged in the outer box, an ultrasonic detector is fixedly connected to the bottom of the inner wall of the outer box and positioned on the left side of the wire collecting mechanism, a detection head is fixedly connected to the bottom of the detection pen, an illuminating lamp is fixedly connected to the top of the inner wall of the fixed cover and positioned on the periphery of the detection pen, and a limit mechanism is arranged on the right side of the bottom of the box cover. This steel construction engineering is with welding seam detection device, protection machanism and stop gear mutually support can play certain guard action to detecting pen and detecting head, in carrying this detection device in-process of transportation, reduce the possibility of detecting pen damage to effectively prolonged the device's life, receive line mechanism can prevent the work efficiency low that causes because of the connecting wire is disordered in the use, improved the practicality of device.
Description
Technical Field
The invention relates to the technical field of weld joint detection, in particular to a weld joint detection device for steel structure engineering.
Background
The steel structure engineering is mainly made of steel, mainly comprises steel beams, steel columns, steel trusses and other components made of steel sections, steel plates and the like, and each component or part is connected by adopting welding seams, bolts or rivets, so that the steel structure engineering is one of main building structure types, is simple and convenient to construct and is widely applied to the fields of large-scale plants, bridges, stadiums, super high-rise and the like due to lighter dead weight.
In steel construction engineering, in order to improve the reliability of engineering, often need detect the welding seam, but current welding seam detection device for steel construction engineering generally inconvenient carrying, the connecting wire between detecting head and the detector is inconvenient accomodate, and the circuit is disordered during the use, directly influences the efficiency that detects, reduces staff's work efficiency, and is difficult to play better guard effect to detecting head, causes detecting head damage easily to influence detection device's life.
Disclosure of Invention
(One) solving the technical problems
Aiming at the defects of the prior art, the invention provides a welding line detection device for steel structure engineering, which solves the problems that a connecting line is inconvenient to store, the line is disordered during use, the working efficiency is influenced, a good protection effect is difficult to be achieved on a detection head, and the detection head is easy to damage.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a welding seam detection device for steel construction engineering, includes outer box, case lid and detection pen, it is articulated through the hinge between outer box and the case lid to the top fixedly connected with handle of case lid, the inside of outer box is provided with wire winding mechanism and protection machanism, the bottom of outer box inner wall just is located wire winding mechanism's left side fixedly connected with ultrasonic detector, the bottom fixedly connected with detection head of detection pen to the bottom fixedly connected with fixed cover on detection pen surface, the top of fixed cover inner wall just is located the fixedly connected with light around the detection pen, the right side of case lid bottom is provided with stop gear.
The protection machanism is including fixing the frame of placing on outer bottom of the case right side, the fixed slot has been seted up to the inside of placing the frame to sliding connection has first fly leaf between the both sides of fixed slot inner wall, the equal fixedly connected with in both sides at first fly leaf top runs through to the inside bracing piece of fixed slot, two fixedly connected with protecting crust between the top of bracing piece, the equal fixedly connected with cover in both sides at first fly leaf top is established at the first spring on bracing piece surface, two the one end that first fly leaf was kept away from to first spring all with the top fixed connection of fixed slot inner wall.
Preferably, the limiting mechanism comprises a limiting groove formed in the box cover, a second movable plate is connected between two sides of the inner wall of the limiting groove in a sliding mode, and a second spring is fixedly connected between the top of the second movable plate and the top of the inner wall of the limiting groove.
Preferably, both sides of second fly leaf bottom are all fixedly connected with connecting rod, two the one end that the second fly leaf was kept away from to the connecting rod all runs through to the below of case lid, two fixedly connected with and detects the spacing frame of pen looks adaptation between the one end that the connecting rod is located the case lid below.
Preferably, the wire winding mechanism comprises a protective box fixed at the bottom of the inner wall of the outer box, a motor is fixedly connected to the back of the inner wall of the protective box, a wire winding wheel is fixedly connected to the output end of the motor, and the front of the wire winding wheel is rotationally connected with the front of the inner wall of the protective box through a rotating shaft.
Preferably, the surface fixedly connected with connecting wire of take-up pulley, the expansion end of connecting wire runs through to the outside of protective housing to with detect first fixed connection, the part that the connecting wire is located the protective housing inside twines at the surface of take-up pulley.
Preferably, the bottom fixedly connected with central processing unit of ultrasonic detector inner wall, the left side fixedly connected with display screen of case lid bottom, the top fixedly connected with control panel of ultrasonic detector.
Preferably, the output end of the control panel is electrically connected with the input end of the central processing unit through a wire, and the central processing unit is in bidirectional connection with the detection head through a connecting wire.
Preferably, the output end of the central processing unit is respectively and electrically connected with the display screen, the illuminating lamp and the input end of the motor through wires, and the central processing unit is in bidirectional connection with the ultrasonic detector through wires.
(III) beneficial effects
The invention provides a welding seam detection device for steel structure engineering. Compared with the prior art, the method has the following beneficial effects:
(1) This steel construction engineering is with welding seam detection device, be provided with protection machanism through the inside of outer box, the right side of case lid bottom is provided with stop gear, protection machanism is including fixing the frame of placing on outer box bottom right side, the fixed slot has been seted up to the inside of placing the frame, and sliding connection has first fly leaf between the both sides of fixed slot inner wall, the equal fixedly connected with in both sides at first fly leaf top runs through to the bracing piece of fixed slot inside, fixedly connected with protecting crust between the top of two bracing pieces, the equal fixedly connected with cover in both sides at first fly leaf top establishes the first spring on bracing piece surface, the one end that first fly leaf was kept away from to two first springs all with the top fixed connection of fixed slot inner wall, stop gear is including seting up the spacing groove in the case lid inside, sliding connection has the second fly leaf between the both sides of spacing groove inner wall, and fixedly connected with second connecting rod between the top of second fly leaf inner wall and the top, the one end that second fly leaf was kept away from to the second fly leaf is all run through to the below of case lid, the one end that two connecting rods are located between the one end of case lid below fixedly connected with and detect the looks adaptation and can carry the pen with the stop gear, the detection device can be reduced in the life-span to the detection device, the life-span protection device is used for detecting the pen.
(2) This welding seam detection device for steel construction engineering is provided with wire-rewinding mechanism through the inside of outer box, wire-rewinding mechanism is including fixing the protective housing in outer box inner wall bottom, the back fixedly connected with motor of protective housing inner wall, and the output fixedly connected with take-up pulley of motor, the front of take-up pulley rotates with the front of protective housing inner wall through the pivot to be connected, the fixed surface of take-up pulley is connected with the connecting wire, the expansion end of connecting wire runs through to the outside of protective housing, and with detect first fixed connection, the connecting wire is located the inside part winding of protective housing at the surface of take-up pulley, wire-rewinding mechanism can be with the connecting wire rolling in the protective housing, thereby prevent the during the use because of the work efficiency that the connecting wire is disordered causes is low, the practicality of device has been improved.
(3) This steel construction engineering welds seam detection device through the fixed cover of bottom fixedly connected with that detects the pen surface, and the top of fixed cover inner wall just is located the fixedly connected with light around detecting the pen, and the light can facilitate the user to find the welding point fast under darker environment to detection efficiency has further been improved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 2;
FIG. 4 is an enlarged view of a portion of the invention at B in FIG. 2;
FIG. 5 is a top cross-sectional view of the wire takeup mechanism of the present invention;
Fig. 6 is a schematic block diagram of the system of the present invention.
In the figure, 1 outer box, 2 case lid, 3 detection pen, 4 handles, 5 take-up mechanism, 51 protective housing, 52 motor, 53 take-up pulley, 54 connecting wire, 6 protection mechanism, 61 place frame, 62 fixed slot, 63 first fly leaf, 64 bracing piece, 65 protective housing, 66 first spring, 7 ultrasonic detector, 8 stop gear, 81 spacing groove, 82 second fly leaf, 83 second spring, 84 connecting rod, 85 spacing frame, 9 detection head, 10 fixed cover, 11 light, 12 central processing unit, 13 display screen, 14 control panel.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the embodiment of the present invention provides a technical solution: the utility model provides a welding seam detection device for steel construction engineering, includes outer case 1, case lid 2 and detects pen 3, articulates through the hinge between outer case 1 and the case lid 2 to the top fixedly connected with handle 4 of case lid 2, its characterized in that: the inside of outer case 1 is provided with wire-rewinding mechanism 5 and protection machanism 6, the bottom of outer case 1 inner wall just is located wire-rewinding mechanism 5's left side fixedly connected with ultrasonic detector 7, detect the bottom fixedly connected with detection head 9 of pen 3, and detect the fixed cover 10 of bottom fixedly connected with on pen 3 surface, the top of fixed cover 10 inner wall just is located around the detection pen 3 fixedly connected with light 11, make things convenient for the staff to find the welding point fast in darker environment, thereby be favorable to improving detection efficiency, the right side of case lid 2 bottom is provided with stop gear 8.
The protection machanism 6 is including fixing the frame 61 of placing on the outer container 1 bottom right side, the fixed slot 62 has been seted up to the inside of placing the frame 61, and sliding connection has first fly leaf 63 between the both sides of fixed slot 62 inner wall, the equal fixedly connected with in both sides at first fly leaf 63 top runs through to the inside bracing piece 64 of fixed slot 62, fixedly connected with protecting crust 65 between the top of two bracing pieces 64, the equal fixedly connected with cover in both sides at first fly leaf 63 top is established at the first spring 66 of bracing piece 64 surface, the one end that first fly leaf 63 was kept away from to two first springs 66 all with the top fixed connection of fixed slot 62 inner wall, protection machanism 6 and stop gear 8 mutually support can play certain guard action to detecting pen 3 and detection head 9, in carrying this detection device in-process, reduce the possibility of detecting pen damage, thereby effectively prolonged the life of the device.
In the embodiment of the invention, the limiting mechanism 8 comprises a limiting groove 81 arranged in the box cover 2, a second movable plate 82 is connected between two sides of the inner wall of the limiting groove 81 in a sliding manner, and a second spring 83 is fixedly connected between the top of the second movable plate 82 and the top of the inner wall of the limiting groove 81.
In the embodiment of the invention, the two sides of the bottom of the second movable plate 82 are fixedly connected with the connecting rods 84, one ends of the two connecting rods 84 far away from the second movable plate 82 penetrate through the lower part of the box cover 2, and a limiting frame 85 matched with the detection pen 3 is fixedly connected between one ends of the two connecting rods 84 located below the box cover 2.
In the embodiment of the invention, the wire collecting mechanism 5 comprises the protective box 51 fixed at the bottom of the inner wall of the outer box 1, the back of the inner wall of the protective box 51 is fixedly connected with the motor 52, the output end of the motor 52 is fixedly connected with the wire collecting wheel 53, the front of the wire collecting wheel 53 is rotationally connected with the front of the inner wall of the protective box 51 through the rotating shaft, and the wire collecting mechanism 5 can wind the connecting wire 54 in the protective box 51, so that the working efficiency is prevented from being low due to disorder of the connecting wire 54 in the use process, and the practicability of the device is improved.
In the embodiment of the invention, the surface of the take-up pulley 53 is fixedly connected with a connecting wire 54, the movable end of the connecting wire 54 penetrates through the outside of the protective box 51 and is fixedly connected with the detection head 9, and the part of the connecting wire 54 positioned in the protective box 51 is wound on the surface of the take-up pulley 53.
In the embodiment of the invention, the bottom of the inner wall of the ultrasonic detector 7 is fixedly connected with a central processor 12, the model of the central processor 12 is ARM9, the central processor is called CPU for short, is an operation core and a control core of a computer, is a final execution unit for information processing and program running, the left side of the bottom of the box cover 2 is fixedly connected with a display screen 13, and the top of the ultrasonic detector 7 is fixedly connected with a control panel 14.
In the embodiment of the present invention, the output end of the control panel 14 is electrically connected with the input end of the central processing unit 12 through a wire, and the central processing unit 12 is in bidirectional connection with the detecting head 9 through a connecting wire 54.
In the embodiment of the invention, the output end of the central processing unit 12 is respectively and electrically connected with the display screen 13, the lighting lamp and the input end of the motor 52 through wires, and the central processing unit 12 is in bidirectional connection with the ultrasonic detector 7 through wires.
When the detecting device is used, the detecting device is placed on a platform, then the box cover 2 is opened, the limiting frame 85 is separated from the top of the detecting pen 3, the limiting frame 85 loses pressure in the process, the connecting rod 84 and the second movable plate 82 lose pressure, the second spring 83 further loses pressure, at the moment, the limiting frame 85 moves towards the direction away from the box cover 2 under the resilience force of the second spring 83 until the second movable plate 82 contacts with the inner wall of the limiting groove 81, then the detecting pen 3 can be taken out from the placing frame 61, in the process, the detecting pen 3 drives the fixed cover 10 to be away from the protecting shell 65, the protecting shell 65 loses pressure, the supporting rod 64 and the first movable plate 63 further lose pressure, the first spring 66 loses tension, and therefore the protecting shell 65 moves upwards under the resilience force of the first spring 66 until the first spring 66 is rebounded to a natural state.
The motor 52 is controlled to work through the control panel 14, the motor 52 drives the take-up pulley 53 to rotate, the connecting wire 54 is released, a worker can pull out the detection pen 3, the detection head 9 is aligned with the welding seam position, the detection head 9 sends detection data to the central processing unit 12, the central processing unit 12 controls the ultrasonic detector 7 to analyze and process the data, and then the detection result is displayed through the display screen 13.
After the use is completed, the motor 52 is reversely rotated through the control panel 14, so that the wire winding wheel 53 winds the connecting wire 54 into the protective box 51, then the detection head 9 of the detection pen 3 is downwards inserted into the placement frame 61, then the box cover 2 is covered, the limit frame 85 is clamped at the tail end of the detection pen 3, and the protective mechanism 6 and the limit mechanism 8 are mutually matched to protect the detection head 9.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention 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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a welding seam detection device for steel construction engineering, includes outer case (1), case lid (2) and detects pen (3), it is articulated through the hinge between outer case (1) and case lid (2) to the top fixedly connected with handle (4) of case lid (2), its characterized in that: the automatic wire winding device is characterized in that a wire winding mechanism (5) and a protection mechanism (6) are arranged inside the outer box (1), an ultrasonic detector (7) is fixedly connected to the bottom of the inner wall of the outer box (1) and located on the left side of the wire winding mechanism (5), a detection head (9) is fixedly connected to the bottom of the detection pen (3), a fixing cover (10) is fixedly connected to the bottom of the surface of the detection pen (3), an illuminating lamp (11) is fixedly connected to the top of the inner wall of the fixing cover (10) and located on the periphery of the detection pen (3), and a limiting mechanism (8) is arranged on the right side of the bottom of the box cover (2);
The protection mechanism (6) comprises a placement frame (61) fixed on the right side of the bottom of the outer box (1), a fixed groove (62) is formed in the placement frame (61), a first movable plate (63) is connected between two sides of the inner wall of the fixed groove (62) in a sliding mode, support rods (64) penetrating into the fixed groove (62) are fixedly connected to two sides of the top of the first movable plate (63), a protection shell (65) is fixedly connected between the top ends of the two support rods (64), first springs (66) sleeved on the surface of the support rods (64) are fixedly connected to two sides of the top of the first movable plate (63), and one ends, far away from the first movable plate (63), of the two first springs (66) are fixedly connected with the top of the inner wall of the fixed groove (62);
The limiting mechanism (8) comprises a limiting groove (81) formed in the box cover (2), a second movable plate (82) is connected between two sides of the inner wall of the limiting groove (81) in a sliding mode, a second spring (83) is fixedly connected between the top of the second movable plate (82) and the top of the inner wall of the limiting groove (81), connecting rods (84) are fixedly connected to two sides of the bottom of the second movable plate (82), one ends, far away from the second movable plate (82), of the two connecting rods (84) penetrate through the lower portion of the box cover (2), limiting frames (85) matched with the detection pen (3) are fixedly connected between one ends, located below the box cover (2), of the two connecting rods (84) respectively, the wire collecting mechanism (5) comprises a protective box (51) fixed at the bottom of the inner wall of the outer box (1), a motor (52) is fixedly connected to the back face of the inner wall of the protective box (51), a wire collecting wheel (53) is fixedly connected to the output end of the motor (52), the front face of the wire collecting wheel (53) is fixedly connected to the front face of the protective box (51) through a connecting wire (54) through a rotating wire, the front face of the protective box (51) is fixedly connected to the surface of the protective box (54) through the rotating wire (54), the part of the connecting wire (54) positioned inside the protective box (51) is wound on the surface of the take-up pulley (53).
2. The welding seam detection apparatus for steel structure engineering according to claim 1, wherein: the bottom of ultrasonic detector (7) inner wall fixedly connected with central processing unit (12), the left side fixedly connected with display screen (13) of case lid (2) bottom, the top fixedly connected with control panel (14) of ultrasonic detector (7).
3. The welding seam detection apparatus for steel construction engineering according to claim 2, wherein: the output end of the control panel (14) is electrically connected with the input end of the central processing unit (12) through a lead, and the central processing unit (12) is in bidirectional connection with the detection head (9) through a connecting wire (54).
4. The welding seam detection apparatus for steel construction engineering according to claim 2, wherein: the output end of the central processing unit (12) is respectively and electrically connected with the input ends of the display screen (13), the illuminating lamp and the motor (52) through wires, and the central processing unit (12) is in bidirectional connection with the ultrasonic detector (7) through wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110451646.1A CN113406198B (en) | 2021-04-26 | 2021-04-26 | Welding seam detection device for steel construction engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110451646.1A CN113406198B (en) | 2021-04-26 | 2021-04-26 | Welding seam detection device for steel construction engineering |
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| CN113406198A CN113406198A (en) | 2021-09-17 |
| CN113406198B true CN113406198B (en) | 2024-05-07 |
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| CN202110451646.1A Active CN113406198B (en) | 2021-04-26 | 2021-04-26 | Welding seam detection device for steel construction engineering |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5583292A (en) * | 1991-03-23 | 1996-12-10 | Krautkramer Gmbh & Co. | Ultrasonic measuring process for the wall thickness curve of a weld seam of a pipe |
| CN109781857A (en) * | 2019-03-18 | 2019-05-21 | 罗建忠 | A kind of building engineering quality supervision concrete ultrasonic detector |
| CN211652706U (en) * | 2020-02-17 | 2020-10-09 | 南通市产品质量监督检验所 | Ultrasonic detection device for detecting weld joint of steel structure |
| CN211652694U (en) * | 2020-01-08 | 2020-10-09 | 唐山裕祥检测科技有限公司 | Steel construction welding seam ultrasonic detector |
-
2021
- 2021-04-26 CN CN202110451646.1A patent/CN113406198B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5583292A (en) * | 1991-03-23 | 1996-12-10 | Krautkramer Gmbh & Co. | Ultrasonic measuring process for the wall thickness curve of a weld seam of a pipe |
| CN109781857A (en) * | 2019-03-18 | 2019-05-21 | 罗建忠 | A kind of building engineering quality supervision concrete ultrasonic detector |
| CN211652694U (en) * | 2020-01-08 | 2020-10-09 | 唐山裕祥检测科技有限公司 | Steel construction welding seam ultrasonic detector |
| CN211652706U (en) * | 2020-02-17 | 2020-10-09 | 南通市产品质量监督检验所 | Ultrasonic detection device for detecting weld joint of steel structure |
Non-Patent Citations (2)
| Title |
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| 建筑钢结构焊缝超声波检测技术探究;戎锴;;门窗;20191025(第20期);全文 * |
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