CN106168580A - Band hole real-time detection apparatus - Google Patents
Band hole real-time detection apparatus Download PDFInfo
- Publication number
- CN106168580A CN106168580A CN201610570654.7A CN201610570654A CN106168580A CN 106168580 A CN106168580 A CN 106168580A CN 201610570654 A CN201610570654 A CN 201610570654A CN 106168580 A CN106168580 A CN 106168580A
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- China
- Prior art keywords
- optical fiber
- fiber head
- detection apparatus
- band hole
- programmable logic
- 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.)
- Pending
Links
- 238000011897 real-time detection Methods 0.000 title claims abstract description 27
- 239000013307 optical fiber Substances 0.000 claims abstract description 98
- 238000001514 detection method Methods 0.000 claims abstract description 38
- 239000000835 fiber Substances 0.000 claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 241000222065 Lycoperdon Species 0.000 description 3
- 241000768494 Polymorphum Species 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- FJMNNXLGOUYVHO-UHFFFAOYSA-N aluminum zinc Chemical compound [Al].[Zn] FJMNNXLGOUYVHO-UHFFFAOYSA-N 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000009500 colour coating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8901—Optical details; Scanning details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
- G01N21/894—Pinholes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
- G01N2021/8918—Metal
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (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)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses band hole real-time detection apparatus, including frame, many group correlation region detection optical fiber heads, many group Intelligent optical fiber amplifiers, Programmable Logic Controller and control electronic box；Described often group correlation region detection optical fiber head includes launching fiber head and receives optical fiber head, and described launching fiber head and reception optical fiber head are relatively fixed to described frame respectively；Described many groups receive optical fiber head outfan and organize Intelligent optical fiber amplifier one_to_one corresponding with and be connected with each other respectively；Described many group Intelligent optical fiber amplifier outs are connected with described Programmable Logic Controller input；Described control electronic box electrically connects with described many group correlation region detection optical fiber heads, many group Intelligent optical fiber amplifiers and Programmable Logic Controller respectively.Relative to prior art, the band hole real-time detection apparatus detection stability and high efficiency of the present invention, installation and debugging are simple, it is possible to the hole of Pinhole-shaped size detected.
Description
Technical field
The present invention relates to strip quality control field, particularly relate to a kind of band hole real-time detection apparatus.
Background technology
Either at continuous multicolor coated steel sheet production line, or in zinc-plated or aluminum-zinc alloy panel production line, raw material
In all can some plate face hole phenomenons of existence more or less, this hole is primarily due to the plate rolling at rolling mill production line
During raw material a certain regional area phosphorus content higher or be mingled with other impurity through roll pressed stretching produce.This
Defect is unavoidable in hot rolling raw material and cold-rolling process, and can only pass through detection at galvanization production line or color coating line
Means detect and cut off hole defect plate.The hole defect that aperture is bigger can only be found when going to check by people, and at steel
When band runs with the speed of 120m/min, manually cannot pass through macroscopy needle outlet shape hole.When this faulty goods
Enter into and roof roof leaking phenomenon when color steel tile use is processed in market, can be caused, have a strong impact on product quality image commercially.
At present in the middle of production line of armor plate coated paint, it is mostly manually to check raw material and production board face by naked eyes
Hole defect, does not the most use real-time detecting system to solve band hole defect detection equipment.Detection hands of the prior art
Section can only ensure the major diameter hole detecting in band, and can not detect the Pinhole-shaped hole defect in band.
Summary of the invention
It is an object of the invention to overcome shortcoming and defect of the prior art, it is provided that a kind of band hole detects dress in real time
Put, for tinuous production, band needle pore defect is detected in real time, run through optical signal continuously to band according to material
The hole in any region of material and the defect of pin hole carry out detection and find, it is ensured that the product produced is without hole defect.
The present invention is achieved by the following technical solutions: band hole real-time detection apparatus, including frame, organizes correlation more
Formula region detection optical fiber head, many group Intelligent optical fiber amplifiers, Programmable Logic Controller and control electronic box；Described often group correlation region
Detection fiber head includes launching fiber head and receives optical fiber head, and described launching fiber head and reception optical fiber head are relatively fixed to respectively
Described frame；Described many groups receive optical fiber head outfan and organize Intelligent optical fiber amplifier one_to_one corresponding with and be connected with each other respectively；
Described many group Intelligent optical fiber amplifier outs are connected with described Programmable Logic Controller input；Described control electronic box respectively with
Described many group correlation region detection optical fiber heads, many group Intelligent optical fiber amplifiers and Programmable Logic Controller electrical connection.
Relative to prior art, the band hole real-time detection apparatus of the present invention, by correlation region detection optical fiber head
Detect steel band hole defect with Intelligent optical fiber amplifier combination, then judged by programmable controller and compare,
By communication, the signal detected is exported afterwards.The present invention detects stability and high efficiency, and installation and debugging are simple, it is possible to pin hole chi detected
The hole of very little size.
Further, described band hole real-time detection apparatus also includes a tension roll assembly and slewing rollers, described band around
Cross the correlation region detection optical fiber head that described tension roll assembly is disposed through in frame, further around crossing slewing rollers, described transmitting light
Fine head and reception optical fiber head lay respectively at the both sides of band.
Further, in described Intelligent optical fiber amplifier is arranged at described control electronic box.
Further, described many groups receive optical fiber head outfan respectively with how group Intelligent optical fiber amplifiers are connected by optical fiber.
Further, described Intelligent optical fiber amplifier includes amplifying circuit, comparison circuit and the output circuit being linked in sequence, institute
State and amplify after amplifying circuit receives the optical signal that optical fiber head inputs and transmit to comparison circuit, after comparison circuit will amplify
Optical signal is converted to into light numerical quantity, and will enter light numerical quantity and compare with preset value and obtain the signal of telecommunication, and will by output circuit
The signal of telecommunication exports to Programmable Logic Controller；Described Programmable Logic Controller exports a testing result signal.
Further, described band hole real-time detection apparatus also includes man machine interface, and described man machine interface receives described inspection
Survey consequential signal and show.
Further, described band hole real-time detection apparatus also includes light sound alarm subsystem, and detection is tied by Programmable Logic Controller
Really signal exports to light sound alarm subsystem, and controls the operation of light sound alarm subsystem.
In order to be more fully understood that and implement, describe the present invention below in conjunction with the accompanying drawings in detail.
Accompanying drawing explanation
Fig. 1 is the structure top view of the band hole real-time detection apparatus of the present invention.
Fig. 2 is the structure left view of the band hole real-time detection apparatus of the present invention.
Fig. 3 is the Programmable Logic Controller Communication Graph with man machine interface of the present invention.
Fig. 4 is that Intelligent Optical Fiber Sensor signal of the present invention is connected figure with front 32 points of Programmable Logic Controller.
Fig. 5 is that Intelligent Optical Fiber Sensor signal of the present invention is connected figure with rear 32 points of Programmable Logic Controller.
Detailed description of the invention
Please refer to Fig. 1 and Fig. 2, its be respectively the present invention band hole real-time detection apparatus structure top view and
Front view.Described band hole real-time detection apparatus includes frame 1, many group correlation region detection optical fiber heads 2, organizes intelligent optical more
Fiber amplifier, Programmable Logic Controller, control electronic box, man machine interface and light sound alarm subsystem.Described many group correlation region detection light
It is fixed on described frame 1 for fine 2.Described many group Intelligent optical fiber amplifiers organize correlation region detection optical fiber heads with described respectively
2 one_to_one corresponding are also connected by optical fiber.Described many group Intelligent optical fiber amplifier outs and described Programmable Logic Controller input
It is connected.Described man machine interface input is connected with the outfan of Programmable Logic Controller respectively with light sound alarm subsystem input.
Described control electronic box respectively with described many group correlation region detection optical fiber heads 2, Intelligent optical fiber amplifier, Programmable Logic Controller,
Man machine interface and the electrical connection of light sound alarm subsystem, for described many group correlation region detection optical fiber heads 2, Intelligent optical fiber amplifier, can
Programmable controller, man machine interface and light sound alarm subsystem are powered.
In the present embodiment, described band hole real-time detection apparatus is provided with 50 groups of correlation region detection optical fiber heads 2
With 50 groups of Intelligent optical fiber amplifiers.Described often group correlation region detection optical fiber head 2 includes launching fiber head and receives optical fiber head,
Described launching fiber head and reception optical fiber head are relatively fixed to described frame 1 respectively, enable the light beam that launching fiber hair is penetrated
Received optical fiber head to receive.
Described each Intelligent optical fiber amplifier is connected by optical fiber with each reception optical fiber head.Receive optical fiber head will receive
Optical signal be sent to Intelligent optical fiber amplifier by optical fiber.Described Intelligent optical fiber amplifier includes the amplification electricity being linked in sequence
Road, comparison circuit and output circuit.Described amplifying circuit receives the optical signal of optical fiber head input, and by after optical signal amplification
Transmitting to comparison circuit, the optical signal after comparison circuit will amplify is converted to into light numerical quantity, and will enter light numerical quantity and preset
Value compares and obtains a signal of telecommunication, and is exported the signal of telecommunication to Programmable Logic Controller by output circuit；Described Programmable Logic Controller
A testing result signal is exported according to the described signal of telecommunication.
Described Programmable Logic Controller receives the signal of telecommunication of Intelligent optical fiber amplifier output, when the output of Intelligent optical fiber amplifier
For interrupted several output signals, then hole in explanation band, then by the output of hole information to man-machine interface display, and trigger
Audible-visual annunciator.In this embodiment, described smooth sound alarm subsystem is that optoacoustic rotates alarm.Described Programmable Logic Controller includes order
The power module 71 that connects, CPU module 72,64 input module 73,16 point relay output modules 74, T-Link communication modules
75.Described man machine interface includes organizing man-machine display interface more.Testing result signal is transmitted separately to by T-Link communication module 75
Each group man-machine display interface.
In the present embodiment, described band hole real-time detection apparatus also includes tension roll assembly 3 and slewing rollers 4, an institute
State band 5 and walk around the correlation region detection optical fiber head 2 that described tension roll assembly 3 is disposed through in frame 1, further around crossing slewing rollers
4, described launching fiber head and reception optical fiber head lay respectively at the both sides of band 5.
The operation principle of described band hole real-time detection apparatus described further below:
Band 5 is walked around described jockey pulley 3 groups and through correlation region detection optical fiber head 2, start described band hole
Real-time detection apparatus, the launching fiber hair of correlation region detection optical fiber head 2 is penetrated infrared, owing to band is arranged at launching fiber
In the middle of head and reception optical fiber head, when without hole, receiving optical fiber head and can not receive infrared light, Intelligent optical fiber amplifier is without output
Signal, illustrates without hole.When receiving optical fiber head and receiving infrared light, Intelligent optical fiber amplifier has output signal, if output letter
Number it is interrupted, illustrates to find hole, Programmable Logic Controller output detections consequential signal, and be sent to man machine interface, man-machine boundary
Face shows hole, and controls optoacoustic alarm equipment alarm；If output signal is continuous print, Programmable Logic Controller is judged to band
Edge, illustrates without hole.Below to include 50 groups of correlation region detection optical fiber heads and the band of 50 groups of Intelligent optical fiber amplifiers
Illustrate as a example by hole real-time detection apparatus:
Normal condition signal shape is following, and (digitized representation each correlation region detection optical fiber head, Lycoperdon polymorphum Vitt highlights digitized representation pair
Penetrating formula region detection optical fiber head not blocked by band, the infrared luminous energy of launching fiber head is irradiated to receive optical fiber head, intelligent optical
Fiber amplifier has output signal): 01,02,03,04,05,06,07,08,09,10,11,12,13,14,15,16,17,18,19,
20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,
45,46,47,48,49,50.And two ends Lycoperdon polymorphum Vitt highlights numeral is because at detection being the edge of band, according to Programmable Logic Controller
Continuous print signal detected, be then judged as the edge of band, not exporting warning message.
When hole, through out-of-date signal shape, (digitized representation each correlation region detection optical fiber head, Lycoperdon polymorphum Vitt highlights numeral as follows
Representing correlation region detection optical fiber head not blocked by steel band, the infrared luminous energy of launching fiber head is irradiated to receive optical fiber head,
Intelligent optical fiber amplifier has output signal): 01,02,03,04,05,06,07,08,09,10,11,12,13,14,15,16,17,
18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,
43,44,45,46,47,48,49,50.The position of reference numeral 13 correlation region detection optical fiber head detects hole
Position.When hole on band, correlation region detection optical fiber head has interrupted several correlation region detection optical fiber heads to be
Having output signal, Programmable Logic Controller is judged as hole according to putting in order of input signal, and Programmable Logic Controller exports
Testing result signal, and transmit signals to man machine interface and show, show hole relevant information, trigger light acoustic alarm simultaneously
Device, controls optoacoustic alarm equipment alarm.
Relative to prior art, the present invention band hole real-time detection apparatus, by correlation region detection optical fiber
Head and Intelligent optical fiber amplifier combination detect steel band hole defect, are then judged by programmable controller and compare,
The signal output that finally will detect.The present invention detects stability and high efficiency, and installation and debugging are simple, it is possible to detect that Pinhole-shaped size is big
Little hole.
The invention is not limited in above-mentioned embodiment, if various changes or deformation to the present invention are without departing from the present invention
Spirit and scope, if these are changed and within the scope of deformation belongs to claim and the equivalent technologies of the present invention, then this
Bright being also intended to comprises these changes and deformation.
Claims (7)
1. band hole real-time detection apparatus, it is characterised in that: include frame, many group correlation region detection optical fiber heads, many groups
Intelligent optical fiber amplifier, Programmable Logic Controller and control electronic box；Described often group correlation region detection optical fiber head includes launching light
Fine head and reception optical fiber head, described launching fiber head and reception optical fiber head are relatively fixed to described frame respectively；Described many groups connect
Receive optical fiber head outfan organize Intelligent optical fiber amplifier one_to_one corresponding with and be connected with each other respectively；Described many group Intelligent optical fibers amplify
Device outfan is connected with described Programmable Logic Controller input；Described control electronic box is examined with described many group correlation regions respectively
Survey optical fiber head, many group Intelligent optical fiber amplifiers and Programmable Logic Controller electrical connection.
Band hole real-time detection apparatus the most according to claim 1, it is characterised in that: described band hole detects in real time
Device also includes a tension roll assembly and slewing rollers, and the correlation that described tension roll assembly is disposed through in frame walked around by described band
Formula region detection optical fiber head, further around crossing slewing rollers, described launching fiber head and reception optical fiber head lay respectively at the both sides of band.
Band hole real-time detection apparatus the most according to claim 1, it is characterised in that: described many group Intelligent optical fibers amplify
Device is arranged in described control electronic box.
Band hole real-time detection apparatus the most according to claim 1, it is characterised in that: it is defeated that described many groups receive optical fiber head
Go out end to be connected by optical fiber with many group Intelligent optical fiber amplifiers respectively.
5. according to the band hole real-time detection apparatus described in any claim in claim 1-4, it is characterised in that: described
Intelligent optical fiber amplifier includes amplifying circuit, comparison circuit and the output circuit being linked in sequence, and described amplifying circuit receives
Amplifying after the optical signal of optical fiber head input and transmit to comparison circuit, the optical signal after comparison circuit will amplify is converted to into light quantity
Numerical value, and light numerical quantity will be entered compare with preset value and obtain the signal of telecommunication, and by output circuit by signal of telecommunication output to the most able to programme
Controller；Described Programmable Logic Controller exports a testing result signal.
Band hole real-time detection apparatus the most according to claim 5, it is characterised in that: described band hole detects in real time
Device also includes man machine interface, and described man machine interface receives described testing result signal and shows.
Band hole real-time detection apparatus the most according to claim 5, it is characterised in that: described band hole detects in real time
Device also includes light sound alarm subsystem, and testing result signal is exported to light sound alarm subsystem by Programmable Logic Controller, and controls optoacoustic report
Alert device runs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610570654.7A CN106168580A (en) | 2016-07-18 | 2016-07-18 | Band hole real-time detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610570654.7A CN106168580A (en) | 2016-07-18 | 2016-07-18 | Band hole real-time detection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106168580A true CN106168580A (en) | 2016-11-30 |
Family
ID=58065832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610570654.7A Pending CN106168580A (en) | 2016-07-18 | 2016-07-18 | Band hole real-time detection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106168580A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733723A (en) * | 2017-03-21 | 2017-05-31 | 湖南师范大学 | Defect detecting device |
| CN113751921A (en) * | 2021-09-28 | 2021-12-07 | 长春一汽宝友钢材加工配送有限公司 | Automatic detection system for air hole defects of laser tailor-welded blank |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994018643A1 (en) * | 1993-02-02 | 1994-08-18 | Golden Aluminum Company | Method and apparatus for imaging surfaces |
| CN202354361U (en) * | 2011-11-30 | 2012-08-01 | 红塔烟草（集团）有限责任公司大理卷烟厂 | Raw cigarette paper and tipping paper joint detection device for cigarette making and tipping machine unit |
| CN103148801A (en) * | 2013-01-30 | 2013-06-12 | 青岛云路新能源科技有限公司 | Method and device for measuring plate cut of belt material on line |
| CN204733918U (en) * | 2015-06-30 | 2015-11-04 | 湖北中烟工业有限责任公司 | Cigarette machine china cypress paper nipple detecting system |
| CN204964410U (en) * | 2015-09-25 | 2016-01-13 | 广州贝晓德传动配套有限公司 | Opaque coiled material hole breakage detection device |
| CN205982117U (en) * | 2016-07-18 | 2017-02-22 | 广东华冠新型材料有限公司 | Strip hole real -time detection device |
-
2016
- 2016-07-18 CN CN201610570654.7A patent/CN106168580A/en active Pending
Patent Citations (6)
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|---|---|---|---|---|
| WO1994018643A1 (en) * | 1993-02-02 | 1994-08-18 | Golden Aluminum Company | Method and apparatus for imaging surfaces |
| CN202354361U (en) * | 2011-11-30 | 2012-08-01 | 红塔烟草（集团）有限责任公司大理卷烟厂 | Raw cigarette paper and tipping paper joint detection device for cigarette making and tipping machine unit |
| CN103148801A (en) * | 2013-01-30 | 2013-06-12 | 青岛云路新能源科技有限公司 | Method and device for measuring plate cut of belt material on line |
| CN204733918U (en) * | 2015-06-30 | 2015-11-04 | 湖北中烟工业有限责任公司 | Cigarette machine china cypress paper nipple detecting system |
| CN204964410U (en) * | 2015-09-25 | 2016-01-13 | 广州贝晓德传动配套有限公司 | Opaque coiled material hole breakage detection device |
| CN205982117U (en) * | 2016-07-18 | 2017-02-22 | 广东华冠新型材料有限公司 | Strip hole real -time detection device |
Non-Patent Citations (1)
| Title |
|---|
| 黄筱调 等: "《机电一体化技术基础及应用》", 28 February 1998, 机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733723A (en) * | 2017-03-21 | 2017-05-31 | 湖南师范大学 | Defect detecting device |
| CN113751921A (en) * | 2021-09-28 | 2021-12-07 | 长春一汽宝友钢材加工配送有限公司 | Automatic detection system for air hole defects of laser tailor-welded blank |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Xinhui District, Guangdong city of Jiangmen province 529100 Guzhou Economic Development Experimental Zone Applicant after: Hua Guan new material Limited by Share Ltd Address before: Xinhui District, Guangdong city of Jiangmen province 529100 Guzhou Economic Development Experimental Zone Applicant before: Guangdong Hua Guan New Material Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161130 |