CN112730005A - Hardness detection device and method for constructional steel member - Google Patents
Hardness detection device and method for constructional steel member Download PDFInfo
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- CN112730005A CN112730005A CN202011583894.3A CN202011583894A CN112730005A CN 112730005 A CN112730005 A CN 112730005A CN 202011583894 A CN202011583894 A CN 202011583894A CN 112730005 A CN112730005 A CN 112730005A
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- 238000001514 detection method Methods 0.000 title claims abstract description 66
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 19
- 239000010959 steel Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 238000005498 polishing Methods 0.000 claims abstract description 30
- 238000007373 indentation Methods 0.000 claims abstract description 15
- 238000010276 construction Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 229910000746 Structural steel Inorganic materials 0.000 claims 2
- 238000007542 hardness measurement Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000005070 sampling Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/32—Polishing; Etching
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/42—Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a hardness detection device and a detection method for a constructional steel member, and aims to provide the hardness detection device and the detection method for the constructional steel member, which have integrated functions and can meet the requirement of clamping sample plates in various forms and simultaneously carrying out multi-point detection. The device comprises a bracket, the upper end of the bracket is connected with a crossbeam, the lower end is connected with a clamping mechanism in a rotating manner, a chute is arranged on the crossbeam, the clamping mechanism is connected with a sample plate, the lower end of the clamping mechanism is connected with a supporting table, the sample plate is attached to the upper end of the supporting table, the chute is connected with a detection mechanism in a sliding manner, the detection mechanism is provided with a pressure guide pillar, the lower end of the pressure guide pillar is connected with a mounting disc in a rotating manner, the lower surface of the mounting disc is fixedly connected with. The invention has the beneficial effects that: clamping and detecting sample plates in any forms; the polishing, indentation and measurement functions are integrated, and the operation is simple; and the sample plate is subjected to multi-point sampling, and the detection data is accurate.
Description
Technical Field
The invention relates to the technical field related to hardness detection, in particular to a hardness detection device and a hardness detection method for a constructional steel member.
Background
In the current construction work, construction steel members are used for many times, and most of the steel members need to bear large force, so that the hardness of the steel members needs to be detected. The common detection equipment only has a detection function and mostly has a single-point detection function, and lacks necessary pretreatment functions, such as cleaning a detection surface and the like. The existing detection equipment has strict requirements on the detection form of a sample plate, can detect the form of a part of the sample plate only in a sampling mode, and has limited functions.
Disclosure of Invention
The invention provides a hardness detection device and a detection method of a building steel member, which are integrated in function and can clamp sample plates in various forms and simultaneously carry out multi-point detection, and aims to overcome the defects that in the prior art, hardness detection needs to use various devices and the detection devices can only carry out detection in a sampling mode.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a hardness detection device of constructional steel member, includes the support, the support upper end is connected with the crossbeam, and the lower extreme rotates and is connected with clamping mechanism, be provided with the spout on the crossbeam, clamping mechanism is connected with sample panel, the clamping mechanism lower extreme is connected with a supporting bench, sample panel and a supporting bench upper end subsides connect, spout sliding connection has detection mechanism, detection mechanism is provided with the pressure guide pillar, pressure guide pillar lower extreme rotates and is connected with the mounting disc, mounting disc lower surface rigid coupling has burnishing device, hardness needle and laser range unit, the laser range unit electricity is connected with the computer.
The upper end of the bracket is fixedly connected with a beam. The crossbeam is provided with a sliding groove, the sliding groove is provided with a detection mechanism, and the detection mechanism can slide in the sliding groove. The multi-point detection to the sample panel can be carried out through the sliding of the detection mechanism, so that the detection number is more accurate. The lower end of the bracket is rotatably connected with a clamping mechanism, so that the clamping and fastening of various forms of sample plates can be realized, and the hardness detection device can be used for detecting in various environments. And a sample plate is arranged between the clamping mechanisms and is clamped and fastened by the clamping mechanisms. The lower end of the clamping mechanism is connected with a supporting table which plays a supporting role for the sample plate. The detection mechanism is provided with a pressure guide pillar, the upper end of the pressure guide pillar is embedded into the chute, and the lower end of the pressure guide pillar is connected with an installation disc. The mounting disc is fixedly connected with a hardness needle, a laser ranging device and a polishing device which are uniformly distributed on the mounting disc. The polishing device is used for polishing the sample plate, the hardness is used for pressing an indentation on the sample plate, and the laser ranging device is used for measuring the diameter of the indentation. Meanwhile, the laser ranging device is electrically connected with the computer, the laser ranging device can transmit the measured data to the computer through the wire harness, and the computer can compare and calculate the measured data to obtain the hardness of the sample plate.
Preferably, the clamping mechanism comprises a pair of U-shaped clamping grooves, the openings of the U-shaped clamping grooves are opposite, the lower groove walls of the U-shaped clamping grooves are connected with an ejector block and a push block, one end of the ejector block is hinged to the lower side walls of the grooves of the U-shaped clamping grooves, and the other end of the ejector block extends into the grooves of the U-shaped clamping grooves and is in compression joint with the push block. The U-shaped clamping groove can be used for conveniently clamping a sample plate, one end of the top block is hinged to the inner bottom surface of the opening end of the U-shaped clamping groove, and the top block can rotate around the hinged position. The push block slides towards the ejector block, so that the ejector block can be ejected, and the sample plate is tightly pressed by the ejector block.
Preferably, the upper groove wall of the U-shaped clamp groove is provided with a rotating shaft, the lower end face of the bracket is provided with a connecting hole, and the rotating shaft is embedded into the connecting hole. The rotating shaft is arranged on the U-shaped clamping groove, the end part of the rotating shaft is a ball head, the ball head is sleeved with a connecting hole formed in the end face of the bottom of the support, the ball head can rotate at multiple angles in the connecting hole, the angle of the opening end of the U-shaped clamping groove is conveniently adjusted, sample plates are conveniently clamped, and clamping and fastening of the sample plates in multiple forms are guaranteed. Preferably, a threaded hole penetrating through the bottom surface of the U-shaped clamping groove is formed in the bottom of the U-shaped clamping groove, the push block is wedge-shaped, the inclined surface is a jacking inclined surface, a screw rod is rotatably connected to one end, opposite to the jacking inclined surface, of the push block, the screw rod is meshed with the threaded hole, the sample plate is connected with the U-shaped clamping groove in an inserting mode, a supporting protrusion is arranged on the upper surface of one end, extending into the U-shaped clamping groove, of the push block, a guiding inclined surface is arranged on the lower surface of the other end, the upper surface of the sample plate is in compression joint with the upper groove wall of the U-shaped clamping groove, the lower. The threaded hole is meshed with the screw rod, so that the functions of guiding and enabling the push block to feed and retreat towards the opening end of the U-shaped clamping groove can be realized. The jacking inclined plane is contacted with the guide inclined plane, the jacking inclined plane is matched with the guide inclined plane, and in the process that the pushing block feeds to the pushing block, the pushing block lifts up the inclined plane end of the pushing block, so that the pushing block realizes a clamping function, the fixing and clamping of the sample plate in the clamping device are ensured, and the sample plate is prevented from generating transverse displacement. The supporting bulge can strengthen the firmness of fastening the sample plate, so that the sample plate is fixed more firmly.
Preferably, the supporting table is a strip-shaped plate, the upper surface of the supporting table is connected with a base plate, the end face of the lower groove wall of the U-shaped clamping groove is provided with mounting holes, the two ends of the supporting table are embedded into the mounting holes, and the upper surface of the base plate is in compression joint with the lower surface of the sample plate. The setting of backing plate can guarantee that sample panel can not take place bending deformation when being pushed down by the hardness needle and form the indentation, guarantees that the indentation that the hardness needle pushed down and forms has and measuring value, guarantees data acquisition's accuracy.
Preferably, the polishing device comprises a telescopic rod and a polishing head, one end of the telescopic rod is fixedly connected with the polishing head, the other end of the telescopic rod is fixedly connected with the mounting disc, and a rotating motor is arranged in the polishing head. The telescopic link drives the rubbing head to move downwards and contact the sample plate, and the built-in rotating electrical machines of rubbing head make the rubbing head rotate and polish the sample plate, make the roughness of sample plate reach the requirement of carrying out the hardness test, guarantee the accuracy of test data.
Preferably, the hardness needle comprises a mounting rod and a spherical pressure head, and the spherical pressure head is fixedly connected to the bottom end face of the mounting rod. Adopt spherical pressure head can make the indentation into the face of sphere, but the upper surface of indentation and sample panel becomes circularly, makes things convenient for laser rangefinder to carry out the measurement of circular diameter size, and spherical pressure head adopts harder material to constitute to can leave the indentation on sample panel, guarantee that the indentation forms clearly, the accuracy of test data is guaranteed to the measurement of indentation diameter to the convenience.
Preferably, the laser ranging device comprises a mounting column and a laser, and the laser is rotatably connected to the lower end face of the mounting column. The laser can rotate on the lower end face of the mounting column, the laser emitted by the laser can measure the diameter of an indentation pressed by the hardness needle, and the accuracy of test data is guaranteed.
A detection method of a hardness detection device of a construction steel member comprises the following steps:
1) installing, namely before the hardness of the sample plate is detected, a proper backing plate needs to be padded on the supporting table, the angle of the clamping mechanism is adjusted, the sample plate is clamped by the clamping mechanism, the supporting table is clamped into the clamping mechanism, the backing plate is ensured to be attached to the sample plate, and the sample plate is fastened;
2) polishing, namely sliding the detection mechanism on the sliding chute, adjusting the detection position, and extending the telescopic rod downwards to enable the polishing head to contact the sample plate for polishing and cleaning so as to ensure that the sample plate meets the hardness detection requirement;
3) indentation, wherein the detection mechanism slides on the sliding chute, the hardness needle is adjusted above a polishing area of the sample plate to be detected, a spherical pressure head of the hardness needle is aligned to a position to be detected, the pressure guide pillar moves downwards to push the hardness needle to press downwards, and the spherical pressure head contacts the sample plate and presses out a spherical pit;
4) ranging, wherein a laser on the detection mechanism rotates on the mounting column, the diameter of the spherical pit is found and drawn by laser emitted by the laser, diameter data of the spherical pit is obtained by measurement, and the measured data is uploaded to a computer;
5) and comparing and calculating, wherein the detection mechanism slides on the sliding groove to select a plurality of different measurement positions, a plurality of data samples are obtained and are collected and sorted on a computer, and the computer calculates the hardness value of the sample plate according to the uploaded data samples and the relevant parameters such as the pressure value of the pressure guide pillar.
The invention has the beneficial effects that: the clamping mechanism can rotate at any angle, so that the device can clamp and detect sample plates in any form; polishing, indentation and measurement are integrated in the detection mechanism, and can be completed by using one device, so that the detection operation is simple; the detection mechanism can move on the cross beam, can sample the sample plate at multiple points, and has more accurate detection data.
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 in fig. 2.
In the drawings, there is shown in the drawings,
1. the device comprises a support, a beam, a pressure guide post, a laser distance measuring device, a hardness pin, a polishing device, a clamping mechanism, a supporting table, a sample plate, a connecting hole, a sliding groove, a mounting disc, a mounting column, a laser, a mounting rod, a spherical pressure head, a telescopic rod, a polishing head, a U-shaped clamping groove, a push block, a cushion plate, a rotating shaft, a threaded hole, a mounting hole, a supporting bulge, a guide inclined plane 711, a jacking inclined plane 720, a screw rod 721, a mounting plate, a mounting column, a laser, a mounting rod, a spherical pressure head, a push rod, a fixing rod.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
In the case of the example 1, the following examples are given,
as shown in fig. 1 and 2, the hardness detection device for the construction steel member comprises a bracket 1. The upper end of the bracket 1 is connected with a beam 2, and the lower end is rotatably connected with a clamping mechanism 7. The cross beam 2 is provided with a chute 20. The clamping mechanism 7 is connected with a sample plate 9. The lower end of the clamping mechanism 7 is connected with a supporting platform 8. The sample plate 9 is attached to the upper end of the support platform 8. The chute 20 is slidably connected with a detection mechanism. The detection mechanism is provided with a pressure guide post 3. The lower end of the pressure guide post 3 is rotatably connected with a mounting plate 30. The lower surface of the mounting plate 30 is fixedly connected with a polishing device 6, a hardness needle 5 and a laser ranging device 4. The laser distance measuring device 4 is electrically connected with a computer.
As shown in fig. 2 and 3, the clamping mechanism 7 includes a pair of clevis slots 70. A pair of clevis slots 70 open opposite one another. The lower groove wall of the U-shaped clamping groove 70 is connected with an ejector block 71 and a push block 72. One end of the top block 71 is hinged with the lower side wall of the U-shaped clamp groove 70, and the other end of the top block extends into the groove of the U-shaped clamp groove 70 and is in pressure joint with the push block 72. The upper groove wall of the U-shaped clamping groove 70 is provided with a rotating shaft 700. The lower end surface of the bracket 1 is provided with a connecting hole 10. The rotation shaft 700 is inserted into the coupling hole 10. The bottom of the U-shaped clamp groove 70 is provided with a threaded hole 701 that penetrates the bottom surface of the groove. The push block 72 is wedge-shaped and the inclined surface is a jacking inclined surface 720. The push block 72 is rotatably connected with a screw 721 at the end opposite to the jacking inclined plane 720. The screw 721 engages with the threaded hole 701. Sample plate 9 is inserted into clevis slot 70. The upper surface of one end of the top block 71 extending into the U-shaped clamping groove 70 is provided with a supporting protrusion 710, and the lower surface is provided with a guide inclined surface 711. The upper surface of the sample plate 9 is pressed against the upper groove wall of the U-shaped clamping groove 70, and the lower surface is pressed against the supporting protrusion 710. The guide slope 711 abuts against the knock-up slope 720. The support platform 8 is a strip-shaped plate. The upper surface of the support platform 8 is connected with a backing plate 80. The lower groove wall end surface of the U-shaped clamping groove 70 is provided with a mounting hole 702. The mounting holes 702 are fitted into both ends of the support base 8. The upper surface of the backing plate 80 is pressed against the lower surface of the sample plate 9.
As shown in fig. 1 and 2, the polishing device 6 includes a telescopic rod 60 and a polishing head 61. One end of the telescopic rod 60 is fixedly connected with the polishing head 61, and the other end is fixedly connected with the mounting disc 30. The polishing head 61 incorporates a rotating motor. The hardness pin 5 comprises a mounting rod 50 and a spherical indenter 51. The spherical pressure head 51 is fixedly connected with the bottom end surface of the mounting rod 50. The laser ranging device 4 comprises a mounting post 40 and a laser 41. The laser 41 is rotatably connected to the lower end surface of the mounting post 40.
A detection method of a hardness detection device of a construction steel member comprises the following steps:
1) during installation, before hardness detection is carried out on a sample plate 9, a proper cushion plate 80 needs to be padded on the supporting table 8, the angle of the clamping mechanism 7 is adjusted, the sample plate 9 is clamped by the clamping mechanism 7, the supporting table 8 is clamped into the clamping mechanism 7, the cushion plate 80 is tightly attached to the sample plate 9, and the sample plate 9 is fastened.
2) Polishing, detection mechanism slide on spout 20, adjust to the detection position after, telescopic link 60 downwardly extending makes burnishing head 61 contact sample panel 9, carries out the polishing clearance, makes sample panel 9 satisfy the hardness detection requirement.
3) And (3) indentation, sliding of the detection mechanism on the sliding groove 20, adjusting the hardness needle 5 to the position above the polishing area of the sample plate 9 to be detected, aligning the spherical pressure head 51 of the hardness needle 5 to the position to be detected, moving the pressure guide pillar 3 downwards, pushing the hardness needle 5 to press downwards, and enabling the spherical pressure head 51 to contact the sample plate 9 and press out a spherical pit.
4) And (3) ranging, wherein a laser 41 on the detection mechanism rotates on the mounting column 40, the laser emitted by the laser 41 finds and traces the diameter of the spherical pit, measures the diameter data of the spherical pit, and uploads the measured data to a computer.
5) And comparing and calculating, wherein the detection mechanism slides on the sliding groove 20 to select a plurality of different measurement positions, a plurality of data samples are obtained and are collected and sorted on a computer, and the computer calculates the hardness value of the sample plate 9 according to the uploaded data samples and the relevant parameters such as the pressure value of the pressure guide pillar 3.
Claims (9)
1. A hardness detection device for a construction steel member is characterized by comprising a bracket (1), the upper end of the bracket (1) is connected with a cross beam (2), the lower end is rotatably connected with a clamping mechanism (7), a sliding groove (20) is arranged on the cross beam (2), the clamping mechanism (7) is connected with a sample plate (9), the lower end of the clamping mechanism (7) is connected with a supporting table (8), the sample plate (9) is attached to the upper end of the supporting table (8), the sliding chute (20) is connected with a detection mechanism in a sliding way, the detection mechanism is provided with a pressure guide post (3), the lower end of the pressure guide post (3) is rotatably connected with a mounting disc (30), the lower surface of the mounting disc (30) is fixedly connected with a polishing device (6), a hardness needle (5) and a laser ranging device (4), and the laser ranging device (4) is electrically connected with a computer.
2. The hardness detection device for the constructional steel member as claimed in claim 1, wherein the clamping mechanism (7) comprises a pair of U-shaped clamping grooves (70), the openings of the U-shaped clamping grooves (70) are opposite, the lower groove wall of the U-shaped clamping groove (70) is connected with an ejector block (71) and a push block (72), one end of the ejector block (71) is hinged with the lower groove side wall of the U-shaped clamping groove (70), and the other end of the ejector block (71) extends into the groove of the U-shaped clamping groove (70) and is in pressure joint with the push block (72).
3. The structural steel member hardness detection device according to claim 2, wherein a rotation shaft (700) is provided on an upper groove wall of the clevis groove (70), a connection hole (10) is provided on a lower end surface of the bracket (1), and the rotation shaft (700) is inserted into the connection hole (10).
4. The apparatus for detecting the hardness of a structural steel member according to claim 2, the bottom of the U-shaped clamping groove (70) is provided with a threaded hole (701) penetrating through the bottom surface of the groove, the push block (72) is wedge-shaped, the inclined plane is a jacking inclined plane (720), one end of the push block (72) opposite to the jacking inclined plane (720) is rotatably connected with a screw rod (721), the screw (721) is meshed with the threaded hole (701), the sample plate (9) is inserted into the U-shaped clamping groove (70), the upper surface of one end of the top block (71) extending into the U-shaped clamping groove (70) is provided with a supporting bulge (710), the lower surface is provided with a guide inclined plane (711), the upper surface of the sample plate (9) is in compression joint with the upper groove wall of the U-shaped clamping groove (70), the lower surface of the sample plate is in compression joint with the supporting protrusion (710), and the guide inclined surface (711) is attached to the jacking inclined surface (720).
5. The hardness detection device for the constructional steel member as set forth in claim 2, wherein the support platform (8) is a strip-shaped plate, the backing plate (80) is connected to the upper surface of the support platform (8), the mounting holes (702) are formed in the end faces of the lower groove wall of the U-shaped clamping groove (70), the mounting holes (702) are embedded into the two ends of the support platform (8), and the upper surface of the backing plate (80) is in pressure contact with the lower surface of the sample plate (9).
6. The hardness detection device of the constructional steel member as set forth in claim 1, wherein the polishing device (6) comprises a telescopic rod (60) and a polishing head (61), one end of the telescopic rod (60) is fixedly connected with the polishing head (61), the other end of the telescopic rod is fixedly connected with the mounting plate (30), and the polishing head (61) is internally provided with a rotating motor.
7. The hardness testing device for the constructional steel member as recited in claim 1, wherein the hardness pin (5) comprises a mounting rod (50) and a spherical indenter (51), and the spherical indenter (51) is fixedly connected to the bottom end face of the mounting rod (50).
8. The device for detecting the hardness of the constructional steel member as claimed in claim 1, wherein the laser ranging device (4) comprises a mounting column (40) and a laser (41), and the laser (41) is rotatably connected to the lower end face of the mounting column (40).
9. The method of claim 1, wherein the method comprises the steps of:
mounting, namely, padding a backing plate (80) on the supporting table (8), clamping the sample plate (9) by the clamping mechanism (7), enabling the backing plate (80) to be attached to the sample plate (9), and fastening the sample plate (9);
polishing, wherein the telescopic rod (60) extends downwards, and the polishing head (61) polishes and cleans the sample plate (9);
indentation, wherein the pressure guide pillar (3) moves downwards to push the hardness pin (5) to press downwards, and the spherical pressure head (51) presses a spherical pit on the contact sample plate (9);
ranging, wherein a laser (41) measures the radius of the spherical pit;
and (5) performing comparison calculation, namely calculating the hardness value of the sample plate (9) according to the radius comparison of the spherical pits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011583894.3A CN112730005A (en) | 2020-12-28 | 2020-12-28 | Hardness detection device and method for constructional steel member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011583894.3A CN112730005A (en) | 2020-12-28 | 2020-12-28 | Hardness detection device and method for constructional steel member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112730005A true CN112730005A (en) | 2021-04-30 |
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ID=75606878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011583894.3A Withdrawn CN112730005A (en) | 2020-12-28 | 2020-12-28 | Hardness detection device and method for constructional steel member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112730005A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504140A (en) * | 2021-09-09 | 2021-10-15 | 南通诚利钢结构工程有限公司 | Hardness detection device is used in steel construction production |
| WO2023034082A1 (en) * | 2021-08-31 | 2023-03-09 | Illinois Tool Works Inc. | Systems and methods for mounting a grinder/polisher sample holder |
| CN116399739A (en) * | 2023-06-02 | 2023-07-07 | 四川蜀道建筑科技有限公司 | Concrete product intensity detection equipment |
-
2020
- 2020-12-28 CN CN202011583894.3A patent/CN112730005A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023034082A1 (en) * | 2021-08-31 | 2023-03-09 | Illinois Tool Works Inc. | Systems and methods for mounting a grinder/polisher sample holder |
| CN113504140A (en) * | 2021-09-09 | 2021-10-15 | 南通诚利钢结构工程有限公司 | Hardness detection device is used in steel construction production |
| CN113504140B (en) * | 2021-09-09 | 2021-11-26 | 南通诚利钢结构工程有限公司 | Hardness detection device is used in steel construction production |
| CN116399739A (en) * | 2023-06-02 | 2023-07-07 | 四川蜀道建筑科技有限公司 | Concrete product intensity detection equipment |
| CN116399739B (en) * | 2023-06-02 | 2023-09-22 | 四川蜀道建筑科技有限公司 | Concrete product intensity detection equipment |
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Application publication date: 20210430 |