CN111468689A - Ultrasonic detection device for thickness of solidified shell in continuous casting secondary cooling area - Google Patents
Ultrasonic detection device for thickness of solidified shell in continuous casting secondary cooling area Download PDFInfo
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- CN111468689A CN111468689A CN202010488009.7A CN202010488009A CN111468689A CN 111468689 A CN111468689 A CN 111468689A CN 202010488009 A CN202010488009 A CN 202010488009A CN 111468689 A CN111468689 A CN 111468689A
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- Prior art keywords
- electromagnetic ultrasonic
- fixed frame
- continuous casting
- detection device
- ultrasonic sensor
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- 238000001514 detection method Methods 0.000 title claims abstract description 31
- 238000009749 continuous casting Methods 0.000 title claims abstract description 13
- 238000001816 cooling Methods 0.000 title claims abstract description 9
- 239000007822 coupling agent Substances 0.000 claims abstract description 6
- 239000000523 sample Substances 0.000 claims abstract description 6
- 235000014676 Phragmites communis Nutrition 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 244000089486 Phragmites australis subsp australis Species 0.000 claims 1
- 238000013459 approach Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 9
- 239000010959 steel Substances 0.000 abstract description 9
- 230000008878 coupling Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 244000273256 Phragmites communis Species 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
- B22D2/005—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass for the thickness of a frozen shell
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Continuous Casting (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses an ultrasonic detection device for the thickness of a solidified blank shell in a continuous casting secondary cooling area, which comprises a fixed frame, wherein two rotating wheels which are arranged oppositely are arranged in the fixed frame, a coupling agent conveying pipe is arranged between the two rotating wheels, bearing seats are arranged on two sides of each rotating wheel, a rotating shaft penetrates between the two bearing seats and one rotating wheel, the bearing seats are fixed on the fixed frame through fixing screws, an electromagnetic ultrasonic sensor is arranged at the bottom of the coupling agent conveying pipe and connected with a sensor lead, and the electromagnetic ultrasonic sensor is provided with a single-channel transmitting and receiving integrated electromagnetic ultrasonic probe. The invention directly acts on the steel billet, the rotating wheel is contacted with the steel billet and rolls, a certain gap exists between the electromagnetic ultrasonic sensor and the steel billet, the electromagnetic ultrasonic sensor is prevented from being damaged by the steel billet, and a coupling medium is required due to the existence of the gap. The detection mechanism is provided with a coupling medium pipeline for conveying coupling liquid, so that ultrasonic conduction and cooling effects are achieved, and the sensor is prevented from being damaged by high temperature.
Description
Technical Field
The invention relates to an ultrasonic detection device for the thickness of a solidified shell in a continuous casting secondary cooling area.
Background
Steel-making enterprises have various forms for the quality detection of steel billets, including destructive detection and nondestructive detection, and the nondestructive detection also includes ray detection and ultrasonic detection. Compared with the traditional nondestructive inspection, the nondestructive inspection adopts ray detection, and because the ray detection needs a radioactive source, the nondestructive inspection has the problems of certain safety and stability, high price of the radioactive source and the like.
Disclosure of Invention
The purpose of the invention is realized by the following technical scheme: the utility model provides an ultrasonic testing device of two cold district solidification shell thicknesses of continuous casting, including fixed frame, be equipped with the rotation wheel of two relative settings in the fixed frame, two rotate and be equipped with the couplant conveyer pipe between the wheel, every both sides of rotating the wheel are equipped with the bearing frame, wear the pivot between two bearing frames and one rotation wheel, the bearing frame passes through the fixed screw to be fixed on fixed frame, the bottom of rotating the protruding fixed frame of wheel, the bottom of couplant conveyer pipe is equipped with electromagnetic ultrasonic sensor, electromagnetic ultrasonic sensor's bottom surface is higher than the bottom surface of rotating the wheel, electromagnetic ultrasonic sensor is connected with the sensor wire, electromagnetic ultrasonic sensor has single channel transmission and receives integral type electromagnetic ultrasonic probe.
The invention is further improved in that: the ultrasonic detection device realizes reciprocating linear motion by driving a double-acting air cylinder, the double-acting air cylinder is controlled by a two-position five-way single electric control electromagnetic valve group, the air cylinder extends out when the power is on, the air cylinder retracts when the power is off, and the motion speed of the double-acting air cylinder can be adjusted through a one-way throttle valve.
The invention is further improved in that the coil of the single electric control electromagnetic valve group is controlled by P L C, the magnetic switch is used for detecting the position of the piston of the cylinder, the piston in the cylinder is provided with a magnetic ring, the position of the piston is detected and reflected, when the magnetic ring in the cylinder is close to the magnetic switch, two reeds of the reed switch are magnetized and attracted mutually under the action of a magnetic field, so that a contact point is closed, a circuit is connected, when the magnetic ring is removed, the spring leaves lose magnetism, the contacts are separated, and the circuit is disconnected, and the opening and closing of the contacts provide the extending or retracting position of the piston of the cylinder.
The invention is further improved in that: the ultrasonic detection device utilizes the transmitting and receiving time difference of ultrasonic waves to carry out the online detection of the thickness of the continuous casting shell.
The invention has the beneficial effects that: the invention is a supplement to the traditional detection method, adopts the ultrasonic detection technology, particularly designs the fixing device of the electromagnetic ultrasonic detection device, and has the characteristics of nondestructive detection, high efficiency and high safety.
Description of the drawings:
FIG. 1 is a schematic structural diagram of an electromagnetic ultrasonic testing apparatus;
FIG. 2 is a side view of an electromagnetic ultrasonic testing apparatus;
reference numbers in the figures: 1-fixed frame, 2-rotating wheel, 3-couplant conveying pipe, 4-bearing seat, 5-rotating shaft, 6-fixed screw, 7-electromagnetic ultrasonic sensor and 8-sensor conducting wire.
The specific implementation mode is as follows:
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, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Elements and features described in one embodiment of the invention may be combined with elements and features shown in one or more other embodiments. It should be noted that the illustration omits illustration and description of components and processes not relevant to the present invention that are known to those of ordinary skill in the art for clarity purposes. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1 and 2, an ultrasonic detection device for thickness of a solidified shell of a continuous casting secondary cooling zone comprises a fixed frame 1, two rotating wheels 2 which are oppositely arranged are arranged in the fixed frame 1, a coupling agent conveying pipe 3 is arranged between the two rotating wheels 2, bearing seats 4 are arranged on two sides of each rotating wheel 2, a rotating shaft 5 penetrates between the two bearing seats 4 and one rotating wheel 2, the bearing seats 4 are fixed on the fixed frame 1 through fixing screws 6, the rotating wheels 2 protrude out of the bottom of the fixed frame 1, the bottom of the coupling agent conveying pipe 3 is provided with an electromagnetic ultrasonic sensor 7, the bottom surface of the electromagnetic ultrasonic sensor 7 is higher than the bottom surface of the rotating wheels 2, the electromagnetic ultrasonic sensor 7 is connected with a sensor wire 8, and the electromagnetic ultrasonic sensor 7 has a single-channel transmitting and receiving integrated electromagnetic ultrasonic probe.
The electromagnetic ultrasonic detection device realizes reciprocating linear motion by driving a double-acting cylinder, the double-acting cylinder is controlled by a two-position five-way single electric control electromagnetic valve group, the cylinder extends out when the power is on, the cylinder retracts when the power is off, the motion speed of the double-acting cylinder can be adjusted by a one-way throttle valve, a coil of the single electric control electromagnetic valve group is controlled by a P L C, a magnetic switch is used for detecting the position of a piston of the cylinder, a magnetic ring is arranged on the piston in the cylinder, the position of the piston is detected and reflected, when the magnetic ring in the cylinder is close to the magnetic switch, two reeds of a reed switch are magnetized and mutually attracted under the action of a magnetic field, a contact point is closed, a circuit is connected, when the magnetic ring is removed, the spring leaves lose magnetism, the contact point is separated, and the circuit is disconnected, and the opening and closing.
The invention adopts water column as coupling agent to measure the thickness of the high-temperature blank shell, ultrasonic longitudinal wave is emitted to the interface of a solid phase and a two-phase area to have a certain amount of reflected echo, and a mode that an emitting probe and a receiving probe are separated and symmetrically distributed on the upper side and the lower side of the continuous casting blank is adopted according to the test effect condition. The online detection mechanism utilizes the transmitting and receiving time difference of ultrasonic waves to carry out online detection on the thickness of the continuous casting blank shell.
The detection mechanism directly acts on the steel billet, the rotating wheel is in contact with the steel billet and rolls, a certain gap exists between the electromagnetic ultrasonic sensor and the steel billet, the electromagnetic ultrasonic sensor is prevented from being damaged by the steel billet, and a coupling medium is required due to the existence of the gap. The detection mechanism is provided with a coupling medium pipeline for conveying coupling liquid, so that ultrasonic conduction and cooling effects are achieved, and the sensor is prevented from being damaged by high temperature. The invention has good practical value and can play a very good application effect through the comparative analysis of experimental test data.
Finally, it should be noted that: although the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present invention. Accordingly, the appended claims are intended to include within their scope such processes, devices, means, methods, or steps.
Claims (4)
1. The utility model provides an ultrasonic testing device of two cold district solidification shell thicknesses of continuous casting which characterized in that: comprises a fixed frame (1), two rotating wheels (2) which are arranged oppositely are arranged in the fixed frame (1), a coupling agent conveying pipe (3) is arranged between the two rotating wheels (2), bearing seats (4) are arranged on two sides of each rotating wheel (2), a rotating shaft (5) penetrates between the two bearing seats (4) and one rotating wheel (2), the bearing seat (4) is fixed on the fixed frame (1) through a fixing screw (6), the rotating wheel (2) protrudes out of the bottom of the fixed frame (1), the bottom of the couplant conveying pipe (3) is provided with an electromagnetic ultrasonic sensor (7), the bottom surface of the electromagnetic ultrasonic sensor (7) is higher than the bottom surface of the rotating wheel (2), the electromagnetic ultrasonic sensor (7) is connected with a sensor wire (8), and the electromagnetic ultrasonic sensor (7) is provided with a single-channel transmitting and receiving integrated electromagnetic ultrasonic probe.
2. The ultrasonic detection device for the thickness of the continuous casting secondary cooling area solidified shell according to claim 1, characterized in that: the ultrasonic detection device realizes reciprocating linear motion by driving a double-acting air cylinder, the double-acting air cylinder is controlled by a two-position five-way single electric control electromagnetic valve group, the air cylinder extends out when the power is on, the air cylinder retracts when the power is off, and the motion speed of the double-acting air cylinder can be adjusted by a one-way throttle valve.
3. The apparatus as claimed in claim 2, wherein the coil of the single electrically controlled solenoid valve set is controlled by P L C, the magnetic switch is used to detect the position of the piston in the cylinder, a magnetic ring is mounted on the piston in the cylinder, the position of the piston is detected and reflected, when the magnetic ring in the cylinder approaches the magnetic switch, the two reeds of the reed switch are magnetized and attracted to each other due to the action of the magnetic field, the contact point is closed, the circuit is connected, when the magnetic ring is removed, the reed loses magnetism, the contact point is separated, and the circuit is disconnected, the contact point is opened and closed, and the cylinder piston is extended or retracted.
4. The ultrasonic detection device for the thickness of the continuous casting secondary cooling area solidified shell according to claim 1, characterized in that: the ultrasonic detection device utilizes the transmitting and receiving time difference of ultrasonic waves to carry out online detection on the thickness of the continuous casting shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010488009.7A CN111468689A (en) | 2020-06-02 | 2020-06-02 | Ultrasonic detection device for thickness of solidified shell in continuous casting secondary cooling area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010488009.7A CN111468689A (en) | 2020-06-02 | 2020-06-02 | Ultrasonic detection device for thickness of solidified shell in continuous casting secondary cooling area |
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| Publication Number | Publication Date |
|---|---|
| CN111468689A true CN111468689A (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010488009.7A Pending CN111468689A (en) | 2020-06-02 | 2020-06-02 | Ultrasonic detection device for thickness of solidified shell in continuous casting secondary cooling area |
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| CN (1) | CN111468689A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003194784A (en) * | 2001-12-27 | 2003-07-09 | Mitsuboshi Belting Ltd | Method of inspecting flaws of polyamide resin molded body and inspecting device thereof |
| KR20120108404A (en) * | 2011-03-24 | 2012-10-05 | (주)레이나 | Roll sensor device |
| CN202533414U (en) * | 2012-03-08 | 2012-11-14 | 中国铁道科学研究院基础设施检测研究所 | Wheel type probe with temperature control function |
| KR101696735B1 (en) * | 2015-08-05 | 2017-01-16 | 주식회사 포스코 | Apparatus for detecting casting structure of slab |
| CN108627571A (en) * | 2018-03-15 | 2018-10-09 | 奥瑞视（北京）科技有限公司 | A kind of wheel ultrasonic detection equipment of rail vehicle, system and method |
| CN212191154U (en) * | 2020-06-02 | 2020-12-22 | 马鞍山职业技术学院 | Ultrasonic detection device for thickness of solidified shell in continuous casting secondary cooling area |
-
2020
- 2020-06-02 CN CN202010488009.7A patent/CN111468689A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003194784A (en) * | 2001-12-27 | 2003-07-09 | Mitsuboshi Belting Ltd | Method of inspecting flaws of polyamide resin molded body and inspecting device thereof |
| KR20120108404A (en) * | 2011-03-24 | 2012-10-05 | (주)레이나 | Roll sensor device |
| CN202533414U (en) * | 2012-03-08 | 2012-11-14 | 中国铁道科学研究院基础设施检测研究所 | Wheel type probe with temperature control function |
| KR101696735B1 (en) * | 2015-08-05 | 2017-01-16 | 주식회사 포스코 | Apparatus for detecting casting structure of slab |
| CN108627571A (en) * | 2018-03-15 | 2018-10-09 | 奥瑞视（北京）科技有限公司 | A kind of wheel ultrasonic detection equipment of rail vehicle, system and method |
| CN212191154U (en) * | 2020-06-02 | 2020-12-22 | 马鞍山职业技术学院 | Ultrasonic detection device for thickness of solidified shell in continuous casting secondary cooling area |
Non-Patent Citations (1)
| Title |
|---|
| 王珍: "连铸二冷区凝固坯壳厚度的超声检测装置的设计与实践", 安徽冶金科技职业学院学报, vol. 30, no. 2, 30 April 2020 (2020-04-30), pages 45 - 48 * |
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