JP2004170212A - Method for managing flaw detection data on steel product and its system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for managing flaw detection data on steel products and its system for managing flaw detection data in such a way as to facilitate retrieval. <P>SOLUTION: A control panel 26 and a collection PC 28 are installed in a primary inspection room 16. A flaw detection signal outputted from an ultrasonic flaw detection device 10 by detecting flaws in a steel product 18 is converted, from an analog signal into a digital signal, into flaw detection data by the control panel 26. The flaw detection data is correlated with material information on the steel product 18 acquired from a host process computer 22 and collected in a collection PC 28. A management PC 36 networked to the collection PC 28 is installed in a secondary inspection room 32. The flaw detection data collected in the collection PC 28 is collectively stored in the management PC 36 with the material information. The management PC 36 is networked to a PC 42 for printing installed in a command room 40, and it is possible to print out the flaw detection data from a printer 46 by operating the PC 42 for printing . <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method and system for managing flaw detection data on steel materials, and more particularly, converts flaw detection signals obtained by flaw detection of surface flaws and internal defects on steel materials from analog signals to flaw detection data of digital signals, The present invention relates to a method and system for managing flaw detection data for steel materials in which data is stored and managed in a computer.
[0002]
[Prior art]
2. Description of the Related Art Magnetic flaw detection, ultrasonic flaw detection, and the like are performed to detect defects existing on the surface and inside of steel materials such as wire rods and steel bars. As a method of managing flaw detection data obtained by a flaw detector such as a magnetic or ultrasonic wave, although there is no literature or the like that discloses a prior art, the present applicant has implemented the following method.
[0003]
That is, as shown in FIG. 2, for example, a control panel 12 and a pen-type chart recorder 14 connected to the ultrasonic flaw detector 10 are installed in the primary inspection room 16, and the steel flaw 18 is detected by the ultrasonic flaw detector 10. Is output from the control panel 12 as an analog signal to the chart recorder 14, and the recorder 14 prints the flaw detection data (flaw detection waveform) on the recording paper 20. The control panel 12 obtains various types of material information on the detected steel material 18 from an upper process computer (upper process computer) 22 which manages the entire production line. The material information is also printed on the recording paper 20. Thus, it is possible to search for each steel material. Then, the worker goes to the primary inspection room 16 and looks at the recording paper 20 to confirm a defect shape or a part generated in the steel material 18 or to confirm a state of the ultrasonic flaw detector 10.
[0004]
[Problems to be solved by the invention]
The conventional management method described above has the following problems.
{Circle around (1)} Since the chart recorder 14 is of a mechanical type, a failure or a malfunction is likely to occur, and there is a possibility that reliable recording cannot be guaranteed.
{Circle around (2)} The steel material 18 in which a defect is found as a result of the flaw detection by the ultrasonic flaw detector 10 is taken out of a regular line and is manually operated by a worker in a secondary inspection room different from the primary inspection room 16. Re-inspection (secondary inspection) is performed by flaw detection. At this time, it is desired to collate the flaw detection data in the secondary inspection with the flaw detection data in the already performed primary inspection (inspection in the primary inspection room 16), but as described above, the flaw detection data of the primary inspection is printed. Since the recording paper 20 is in the primary inspection room 16 which is a different place from the secondary inspection room, quick collation cannot be performed.
{Circle around (3)} Since the flaw detection data is printed on the recording paper 20, an enormous amount of recording paper 20 is required, which increases the cost. Further, since the recording paper 20 needs to be stored for a predetermined period (for example, one year), a warehouse for storing an enormous amount of the recording paper 20 is required, and the storage management cost increases.
{Circle around (4)} Since the primary inspection room 16 in which the chart recorder 14 is installed is basically unmanned, the discovery when an abnormality occurs in the ultrasonic flaw detector 10 is delayed.
(5) There may be a case where the recording paper 20 on which flaw detection data corresponding to a specific steel material 18 is printed as necessary, such as a complaint from a user, but a huge amount of recording paper stored in a warehouse. It takes a lot of trouble and time to find a specific recording paper 20 from the recording paper 20, and the search operation becomes complicated.
[0005]
[Object of the invention]
The present invention has been proposed in view of the above-mentioned problems inherent in the related art, and has been proposed to appropriately solve the problem, and a method for managing flaw detection data of a steel material which can easily manage flaw detection data and The purpose is to provide the system.
[0006]
[Means for Solving the Problems]
In order to overcome the above-mentioned problems and appropriately achieve the intended purpose, a method for managing flaw detection data of steel according to the present invention includes:
Flaw detection data obtained by converting a flaw detection signal obtained by flaw-detecting a steel material with a flaw detector from an analog signal to a digital signal was collected by a collection computer in association with material information of the flaw-detected steel material, and collected by the collection computer. The flaw detection data and the material information are stored in a management computer so as to be displayed and searched.
[0007]
In order to overcome the above problems and appropriately achieve the intended purpose, a steel inspection data management system according to another invention of the present application is provided.
A system that manages flaw detection data obtained by flaw detection of steel with a flaw detector.
A control panel connected to the flaw detector and converting a flaw detection signal from the flaw detector from an analog signal to a digital signal and outputting the signal;
A collection computer capable of displaying the flaw detection data while collecting flaw detection data of the digital signal output from the control panel in association with material information of the flaw-detected steel material obtained from the upper process computer,
A management computer that stores flaw detection data and material information collected by the collection computer,
The management computer is characterized in that the stored flaw detection data and material information can be displayed and searched.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, a method and system for managing flaw detection data of a steel material according to the present invention will be described in detail below with reference to the accompanying drawings by way of preferred embodiments. It should be noted that the same members and the like already described in the related art with reference to FIG.
[0009]
FIG. 1 schematically shows a flaw detection data management system according to an embodiment. The system 24 performs a normal inspection (primary inspection) of a steel material 18 by an ultrasonic flaw detector (flaw detector) 10. A control panel 26 is provided in the primary inspection room 16 and connected to the ultrasonic flaw detector 10. The ultrasonic flaw detector 10 detects flaws in a long steel material 18 such as a wire rod or a steel bar over the entire length thereof to detect internal defects. A flaw detection signal for each of the obtained steel materials is transmitted to a control panel. 26. Then, the control panel 26 converts the flaw detection signal from the ultrasonic flaw detector 10 into flaw detection data obtained by converting an analog signal into a digital signal by a built-in A / D converter (not shown), and transmits the flaw detection signal to a collecting personal computer 28 described later. It is configured to output. In this control panel 26, a pass / fail judgment is made by comparing a threshold value set in advance and a flaw detection data for judging a defect to be defective, and the pass / fail data is also attached to the flaw detection data. Is output. Further, the threshold value is automatically set when the steel type is changed based on various kinds of material information (steel type, fusion number or joint number, etc.) on the steel material 18 to be inspected obtained from the host computer 22 which manages the entire production line. Calibration is performed so that a highly accurate pass / fail judgment is always performed.
[0010]
A collection personal computer (hereinafter, referred to as a collection PC) 28 as a collection computer is installed in the primary examination room 16, and the collection PC 28 is connected to the control panel 26 via a signal line. The flaw detection data (flaw detection waveform) output from the control panel 26 as a digital signal is collected by the collection PC 28. The flaw detection data is collected by the collection PC 28 in association with the material information of the steel material 18 obtained from the host computer 22. The collection PC 28 includes a first display 30 as a display unit, and can display flaw detection data and material information in real time. As shown in FIG. 1, the collection PC 28 is connected to a second display 34 as a display unit installed in a secondary inspection room 32 (to be described later) remote from the primary inspection room 16. The material information can also be monitored in real time in the secondary inspection room 32.
[0011]
In the flaw detection line where the flaw detection data management system 24 is installed, the steel material 18 in which a defect is found as a result of the primary inspection by the ultrasonic flaw detector 10 is taken out from the regular line and separated from the primary inspection room 16. In another secondary inspection room 32, a re-inspection (secondary inspection) is performed by hand flaw detection by an operator. The flaw detection data management system 24 includes a management personal computer (hereinafter, referred to as a management PC) 36 as a management computer installed in the secondary inspection room 32. The management PC 36 is connected to the collection PC 28 via various networks such as a wired or wireless network, and the flaw detection data collected by the collection PC 28 is collectively stored (stored) in the management PC 36 together with the material information, and a database is stored. It is configured to be constructed. The flaw detection data stored in the management PC 36 is recorded and stored, for example, on a CD / RW as a storage medium every month.
[0012]
The management PC 36 includes a display 38 as a display means, and is configured to display flaw detection data and material information in real time, or to display flaw detection data of the primary inspection at the time of the secondary inspection. Further, since the flaw detection data is stored in the management PC 36 together with the material information of the steel material 18, it is possible to easily search the flaw detection data of the steel material 18 from the material information of, for example, the melting number or the common number by operating the management PC 36. Can be.
[0013]
As shown in FIG. 1, the management PC 36 is connected to a printing personal computer (hereinafter, referred to as a printing PC) 42 as a printing computer installed in a command room 40 provided in another place in the same manner as described above. The printing PC can also read flaw detection data stored in the management PC 36 and display it on the display 44 as an accompanying display means. Further, a printer 46 is connected to the printing PC 42, and by operating the printing PC 42, the flaw detection data can be printed and output by the printer 46. It is also possible to print out the flaw detection data from the printer 46 by operating the management PC 36.
[0014]
Operation of the embodiment
Next, the operation of the method for managing flaw detection data of steel materials and the system according to the embodiment will be described. As shown in FIG. 1, the steel material 18 supplied to the primary inspection room 16 is flaw-detected by the ultrasonic flaw detector 10, and a flaw detection signal is input to the control panel 26. In the control panel 26, based on the material information obtained from the host computer 22, the pass / fail of the internal defect is determined by a threshold value calibrated according to the steel type of the steel material 18, and the flaw detection signal is converted into an analog signal. Is converted into a digital signal, and the flaw detection data is output to the collection PC 28. In the collecting PC 28, the flaw detection data output from the control panel 26 is collected in association with the material information of the corresponding steel material 18 obtained from the host computer 22. The flaw detection data and material information collected by the collection PC 28 can be monitored in real time by the displays 30 and 34 installed in the primary inspection room 16 or the second inspection room 32.
[0015]
The flaw detection data and material information collected by the collection PC 28 are stored in the management PC 36 installed in the secondary inspection room 32. The flaw detection data stored in the management PC 36 in association with the material information is recorded and stored on a CD / RW every month, for example.
[0016]
As a result of the primary inspection, the steel 18 in which an internal defect is found is supplied to the secondary inspection room 32, and information on the steel 18 is input to the management PC 36 from the host computer 22. The flaw detection data of the corresponding steel material 18 is retrieved from the stored data and automatically displayed on the display 38. Therefore, it is possible to easily collate the flaw detection data obtained by the worker's hand flaw detection performed in the secondary inspection room 32 with the flaw detection data obtained in the primary inspection.
[0017]
Further, since the material information and the flaw detection data of the steel material 18 are stored in the management PC 36 in association with each other, the operator can transfer the flaw detection data on the desired steel material 18 whose inspection has been completed to the material number such as a fusion number or a coin number. The information can be easily retrieved based on the information and displayed on the display 38. Further, by operating the printing PC 42 in the command room 40, any flaw detection data stored in the management PC 36 can be printed out from the printer 46 on paper.
[0018]
Although the primary inspection room 16 is basically unmanned, since the second display 34 connected to the collection PC 28 is installed in the secondary inspection room 32 where the worker is resident, the flawed steel material 18 Can be confirmed in real time via the display 34. Therefore, the occurrence of an abnormality such as a failure of the ultrasonic flaw detector 10 can be found at an early stage due to an abnormality of the flaw detection data displayed on the second display 34 or the like.
[0019]
In addition, the flaw detection data of the digital signal output from the control panel 26 is stored in the management PC 36 so that it can be displayed, printed and searched, so that a failure or failure can be caused like a mechanical chart recorder conventionally used. There is no possibility that reliable recording cannot be performed due to operation failure, and reliable recording is guaranteed. Furthermore, a large amount of recording paper for recording flaw detection data and a warehouse for storing the same are not required, and the cost required for storage management can be significantly reduced. In addition, even when flaw detection data accumulated in the management PC 36 is recorded and stored on a CD / WR, the CD / WR is not bulky, so that the storage space can be reduced. Further, it is easy to search for flaw detection data recorded on the CD / WR, and it is possible to quickly respond to complaints from users and the like.
[0020]
[Modification example]
In the embodiment, the case has been described in which flaw detection data obtained by flaw-detecting a steel material with an ultrasonic flaw detector is managed. It can be used for management of flaw detection data obtained by this.
[0021]
【The invention's effect】
As described above, according to the method and system for managing flaw detection data for steel materials according to the present invention, flaw detection data for steel materials is stored as a digital signal in the management computer. In comparison, reliable recording of flaw detection data can be guaranteed. Further, it is not necessary to use a large amount of recording paper or a warehouse for recording flaw detection data, so that storage management costs can be significantly reduced. Further, the search for the flaw detection data corresponding to the desired steel material can be performed easily and in a short time, and the collation of the flaw detection data at the time of re-inspection or the like is easy. Since the flaw detection data can be displayed in real time, it is possible to detect an abnormality of the flaw detector at an early stage.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing a steel inspection data management system according to a preferred embodiment of the present invention.
FIG. 2 is a schematic configuration diagram showing a method for managing flaw detection data for steel materials according to a conventional technique.
[Explanation of symbols]
10 ultrasonic flaw detector (flaw detector), 18 steel material, 26 control panel 28 collection personal computer (collection computer)
36 Management personal computer (Management computer)

Claims (2)

Flaw detection data obtained by converting a flaw detection signal obtained by flaw-detecting a steel material (18) with a flaw detector (10) from an analog signal to a digital signal is associated with material information of the flaw-detected steel material (18) and collected by a collection computer (28). ), And the flaw detection data and material information collected by the collection computer (28) are stored in a management computer (36) so as to be displayed and searchable. A system for managing flaw detection data obtained by flaw-detecting a steel material (18) with a flaw detector (10),
A control panel (26) connected to the flaw detector (10), for converting a flaw detection signal from the flaw detector (10) from an analog signal to a digital signal and outputting the signal;
The flaw detection data of the digital signal output from the control panel (26) is collected in association with the material information of the flawed steel material (18) obtained from the host process computer (22), and the flaw detection data can be displayed. A collection computer (28);
A management computer (28) for storing flaw detection data and material information collected by the collection computer (28),
A flaw detection data management system for steel materials, wherein the management computer (28) can display and search the stored flaw detection data and material information.

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