CN2556592Y - Crack depth detector for cast blank section - Google Patents
Crack depth detector for cast blank section Download PDFInfo
- Publication number
- CN2556592Y CN2556592Y CN 02274413 CN02274413U CN2556592Y CN 2556592 Y CN2556592 Y CN 2556592Y CN 02274413 CN02274413 CN 02274413 CN 02274413 U CN02274413 U CN 02274413U CN 2556592 Y CN2556592 Y CN 2556592Y
- Authority
- CN
- China
- Prior art keywords
- amplifier
- crack depth
- blank section
- casting blank
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000523 sample Substances 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000005266 casting Methods 0.000 claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000005674 electromagnetic induction Effects 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 238000012827 research and development Methods 0.000 abstract 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 9
- 238000009749 continuous casting Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model provides a detector for detecting casting billet cross crack depth, consisting of a detection system, a display system and an alarm system. The utility model is characterized in that the detection system consists of a sensor probe and a high frequency oscillator and is connected with a half-wave geophone which is connected with an amplifier IC model -(1) while the amplifier IC model-(1) is respectively connected with the display system and the alarm system. By utilizing an electromagnetic induction principle, the utility model combines the sensor probe with the high frequency oscillator, a display and an alarm and has reasonable structure, high integration, small volume, light weight and higher sensitivity and stability, thereby being applicable in labs, research and development departments and production sites to detect cracks on casting billet, plate billet and machining parts, etc.
Description
Affiliated field
The utility model belongs to a kind of pick-up unit, specifically is a kind of casting blank section crack depth detector that is used to measure the casting blank section crack depth.
Background technology
What be used at present that the crack detection of continuous casting steel billet, slab adopts is to do sulfur print test again after the section polishing, but the steel billet that has exists segregation serious, or crackle.Being difficult in this case with the naked eye distinguish is crystal boundary or crackle on earth, can only adopt the method for high temperature pickling to judge in the past, but sample is after overpickling, much owing to being that the crystal boundary bandwidth is judged as crackle, so not only finished product is judged into waste product and cause erroneous judgement, and for work for inspection has added difficulty, even more serious is according to wrong judgement report, the processing parameter of adjusting continuous casting billet brings the continuous casting billet quality instability easily, influences problems such as ordinary production.More existing crackle detecting instruments adopt methods such as ultrasonic, current vortex, magnetic basically, but these detecting instrument structures are all very complicated, and volume is too big, and what have needs AC power, is difficult to adapt to on-the-spot environmental requirement.
Summary of the invention
The purpose of this utility model provides a kind of casting blank section crack depth detector, to solve prior art to strand, slab section inaccurate and detecting instrument complex structure and bulky problem when carrying out crack detection.
The purpose of this utility model is achieved in that it is made up of detection system and demonstration, warning system, and it is characterized in that: detection system is made up of sensor probe and high frequency oscillator, and detection system is connected with half-wave detector, half-wave detector and amplifier IC
1Connect amplifier IC
1Link to each other with display system, warning system respectively.
Concrete structure of the present utility model has, and sensor probe is that coil is led on the material around height, the coil that winds is put in the pen core L=0.88 μ H of its sensor～1.00 μ H, self-resistance R=1.2 Ω～1.8 Ω.
Concrete connected mode of the present utility model has, sensor probe and capacitor C
1Being connected in parallel on the oscillator master shakes in the loop.The A/D digital to analog converter of display system connects light-emitting diode display, the warning amplifier IC of warning system
2Device taking alarm; Amplifier IC
1Output 1 pin be divided into two-way, the one tunnel delivers to the A/D analog to digital converter of display system, the warning amplifier IC of warning system is delivered on another road
25 pin; Between high frequency oscillator and wave detector, add isolating transformer B.
The utility model has the advantages that, utilize the principle of electromagnetic induction, sensor probe and high frequency oscillator and display, alarm are combined, its rational in infrastructure, integrated level height, volume are little, in light weight, has higher sensitivity and stability, be applicable to the use of testing laboratory's check and scientific research department and production scene, can be to the crack detection of various strands, slab, machined piece etc.
Description of drawings
Accompanying drawing 1 is a structured flowchart of the present utility model;
Accompanying drawing 2 is a circuit diagram of the present utility model;
Accompanying drawing 3 is user mode figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated:
As shown in Figure 1, 2: it is made up of detection system and demonstration, warning system, it is characterized in that: detection system is made up of sensor probe 1 and high frequency oscillator, and detection system is connected with half-wave detector, half-wave detector and amplifier IC
1Connect amplifier IC
1Link to each other with display system, warning system respectively.
Sensor probe 1 is that coil is led on the material around height, the coil that winds put in the pen core, and the L=0.88 μ H of its sensor～1.00 μ H, self-resistance R=1.2 Ω～1.8 Ω, its quality factor are Q=0.008.
As shown in Figure 2, sensor probe 1 and capacitor C
1Being connected in parallel on the oscillator master shakes in the loop.The A/D digital to analog converter of display system connects light-emitting diode display, the warning amplifier IC of warning system
2Device taking alarm; Amplifier IC
1Output 1 pin be divided into two-way, the one tunnel delivers to the A/D analog to digital converter of display system, the warning amplifier IC of warning system is delivered on another road
25 pin, between high frequency oscillator and wave detector, add isolating transformer B.
As shown in Figure 1, 2, 3, the course of work of the present utility model is such, when the sensor probe 1 that is loaded with high-frequency current contacts test specimen 2, produces eddy current 3 on its surface, because sensor probe and capacitor C
1Be connected in parallel in the input circuit master as the oscillator loop that shakes, constitute oscillation circuit, the field effect transistor BG in high frequency oscillator enters operational amplifier and amplifies then.Probe placement is on sample at this moment, and the oscillation amplitude of oscillator does not change.This moment, semaphore was delivered to D2, D3 voltage multiplying rectifier through isolating transformer B, and the alternate level signal is become the level signal of direct current, and this level signal is delivered to IC
12 pin; IC
13 pin be a reference level, adjust amplifier IC
1In the W1 potentiometer of 2 pin front ends, make it IC
12, the 3 pin balances of voltage, this moment IC
1Output 1 pin be divided into two-way; One the tunnel after the conversion of the A/D of display system analog to digital converter, signal is delivered to the LED nixie display show; Warning amplifier IC is delivered on another road
25 pin, with this signal amplify drive sound, light warning part.
When sensor probe ran into crackle 4, the amplitude of oscillator changed, and its variable quantity is by the depth decision of crackle 4.Deliver to IC with signal this moment
13 pin, signal destroyed at this moment original equilibrium state, signal IC at this moment
1Deliver to the A/D analog to digital converter after the amplification after conversion, deliver to the LED nixie display, this moment, the reading of LED nixie display was exactly the actual grade of crackle; IC
1IC is delivered on another road of output
25 pin of warning amplifier, if crackle exceeded scope by artificial setting then alarm lamp was luminous this moment, hummer sounding alarm simultaneously.Point out the degree of depth of this crackle to surpass setting value, declare useless foundation as crack depth.
Claims (7)
1 one kinds of casting blank section crack depth detectors are made up of detection system and demonstration, warning system, it is characterized in that detection system is made up of sensor probe (1) and high frequency oscillator, and detection system is connected with half-wave detector, half-wave detector and amplifier IC
1Connect amplifier IC
1Link to each other with display system, warning system respectively.
2 a kind of casting blank section crack depth detectors according to claim 1, it is characterized in that described sensor probe (1) is that coil is led on the material around height, the coil that winds is put in the pen core L=0.88 μ H of its sensor～1.00 μ H, self-resistance R=1.2 Ω～1.8 Ω.
3 a kind of casting blank section crack depth detectors according to claim 1 is characterized in that sensor probe (1) and capacitor C
1Being connected in parallel on the oscillator master shakes in the loop.
4 a kind of casting blank section crack depth detectors according to claim 1 is characterized in that amplifier IC
1Output 1 pin be divided into two-way, the one tunnel delivers to the A/D analog to digital converter of display system, 5 pin of the warning amplifier IC2 of warning system are delivered on another road.
5 a kind of casting blank section crack depth detectors according to claim 1 is characterized in that the A/D digital to analog converter of display system connects light-emitting diode display.
6 a kind of casting blank section crack depth detectors according to claim 1 is characterized in that the warning amplifier IC of warning system
2Device taking alarm.
7 a kind of casting blank section crack depth detectors according to claim 1 add isolating transformer B between high frequency oscillator and wave detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274413 CN2556592Y (en) | 2002-07-25 | 2002-07-25 | Crack depth detector for cast blank section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274413 CN2556592Y (en) | 2002-07-25 | 2002-07-25 | Crack depth detector for cast blank section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2556592Y true CN2556592Y (en) | 2003-06-18 |
Family
ID=33738686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02274413 Expired - Lifetime CN2556592Y (en) | 2002-07-25 | 2002-07-25 | Crack depth detector for cast blank section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2556592Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247923A (en) * | 2014-07-18 | 2016-12-21 | 江苏省电力公司南通供电公司 | The method of work of earthing bar buried depth detector |
| CN106643465A (en) * | 2016-12-28 | 2017-05-10 | 宁波市鄞州磁泰电子科技有限公司 | Weld joint penetration depth detection method |
| CN110487165A (en) * | 2019-08-23 | 2019-11-22 | 北京石墨烯技术研究院有限公司 | Metal Crack detection sensor and system |
| CN110587107A (en) * | 2019-08-16 | 2019-12-20 | 徐州远航模具有限公司 | Equipment suitable for mould is restoreed |
| CN114252504A (en) * | 2021-12-20 | 2022-03-29 | 马鞍山钢铁股份有限公司 | Online rapid detection method and detection device for corner cracks of continuous casting slab |
| CN115561571A (en) * | 2022-01-13 | 2023-01-03 | 深圳荣耀智能机器有限公司 | Crack detection circuit, crack detection system, integrated circuit and electronic equipment |
-
2002
- 2002-07-25 CN CN 02274413 patent/CN2556592Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247923A (en) * | 2014-07-18 | 2016-12-21 | 江苏省电力公司南通供电公司 | The method of work of earthing bar buried depth detector |
| CN106247923B (en) * | 2014-07-18 | 2018-12-18 | 江苏省电力公司南通供电公司 | The working method of earthing bar buried depth detector |
| CN106643465A (en) * | 2016-12-28 | 2017-05-10 | 宁波市鄞州磁泰电子科技有限公司 | Weld joint penetration depth detection method |
| CN106643465B (en) * | 2016-12-28 | 2019-01-29 | 宁波市鄞州磁泰电子科技有限公司 | A kind of weld penetration detection method |
| CN110587107A (en) * | 2019-08-16 | 2019-12-20 | 徐州远航模具有限公司 | Equipment suitable for mould is restoreed |
| CN110487165A (en) * | 2019-08-23 | 2019-11-22 | 北京石墨烯技术研究院有限公司 | Metal Crack detection sensor and system |
| CN114252504A (en) * | 2021-12-20 | 2022-03-29 | 马鞍山钢铁股份有限公司 | Online rapid detection method and detection device for corner cracks of continuous casting slab |
| CN115561571A (en) * | 2022-01-13 | 2023-01-03 | 深圳荣耀智能机器有限公司 | Crack detection circuit, crack detection system, integrated circuit and electronic equipment |
| CN115561571B (en) * | 2022-01-13 | 2023-12-08 | 深圳荣耀智能机器有限公司 | Crack detection circuit, system, integrated circuit and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ANGANG NEW STEEL ROLLING CO., LTD. Free format text: FORMER OWNER: XINGANGTIE CO., LTD., ANSHAN IRON AND STEEL GROUP Effective date: 20061208 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: ANGANG STOCK CO., LTD. Free format text: FORMER NAME OR ADDRESS: ANGANG NEW STEEL ROLLING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 114009, No. 63, Wuyi Road, MTR Eastern District, Liaoning, Anshan Patentee after: ANGANG STEEL COMPANY LIMITED Address before: 114001 No. 31 Shengli Road, Tiedong District, Liaoning, Anshan Patentee before: Angang New Steel Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20061208 Address after: 114001 No. 31 Shengli Road, Tiedong District, Liaoning, Anshan Patentee after: Angang New Steel Co.,Ltd. Address before: 114001 No. 31 Shengli Road, Tiedong District, Liaoning, Anshan Patentee before: Angang Steel Co.,Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120725 Granted publication date: 20030618 |