CN114777694B - Method for judging state change trend of hot-rolled multifunctional thickness gauge tube - Google Patents
Method for judging state change trend of hot-rolled multifunctional thickness gauge tube Download PDFInfo
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- CN114777694B CN114777694B CN202210315543.7A CN202210315543A CN114777694B CN 114777694 B CN114777694 B CN 114777694B CN 202210315543 A CN202210315543 A CN 202210315543A CN 114777694 B CN114777694 B CN 114777694B
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 238000004458 analytical method Methods 0.000 claims abstract description 4
- 230000035772 mutation Effects 0.000 claims abstract description 3
- 238000001514 detection method Methods 0.000 claims description 9
- 238000004364 calculation method Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000011160 research Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 20
- 239000010959 steel Substances 0.000 abstract description 20
- 238000005096 rolling process Methods 0.000 abstract description 9
- 239000000523 sample Substances 0.000 description 20
- 238000012423 maintenance Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
- G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
- G01B15/02—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/20—Drawing from basic elements, e.g. lines or circles
- G06T11/206—Drawing of charts or graphs
Abstract
The invention discloses a method for judging the state change trend of a ray tube of a hot-rolled multifunctional thickness gauge, and belongs to the technical field of large-scale steel rolling gauges. The invention comprises zero standard data chart arrangement analysis: the method comprises the steps of carrying out off-line external sample measurement on a certain specification standard sample of equipment by adopting multifunctional thickness measuring instrument equipment, collecting energy data of the specification standard sample measured by a certain time point ray tube S1, namely zero standard data, collecting zero standard data of a group of ray tubes S1 in a period of time, then arranging the zero standard data, generating a corresponding chart by the collected zero standard data of each group of ray tubes S1, and when the chart has mutation at a certain time point, indicating that the energy state of the ray tubes S1 is changed. Aiming at the problems existing in the prior art, the invention aims to provide a judging method for judging the state change trend of the hot-rolled multifunctional thickness gauge tube, which can simply and objectively reflect the change condition of the energy state of the thickness gauge tube.
Description
Technical Field
The invention belongs to the technical field of large-scale steel rolling measuring instruments, and particularly relates to a method for judging the state change trend of a tube of a hot-rolling multifunctional thickness measuring instrument.
Background
In the production process of hot rolled strip steel, the multifunctional thickness gauge is a very important thickness gauge which can measure the transverse profile thickness of the finished strip steel, and the measuring principle is that X rays are generated by ionizing air through a ray tube, so that the X rays irradiate downwards in a directional manner, the X rays penetrate the strip steel and reach a probe receiving end below the strip steel, and the probe receiving end consists of five hundred small scintillation crystal crystals, so that a receiving end which is perpendicular to the running direction of the strip steel and covers the whole width direction of the strip steel is formed. The probe calculates the thickness and other data of the strip steel through the received X-ray energy.
Along with the lapse of service time, the equipment can take place system drift, probably leads to measuring data to appear the error, in order to guarantee the precision of equipment, need carry out the annual check-up to the calibrator, be called full standard work, full standard adopts each specification standard sample piece (called external standard sample piece) that equipment was taken by oneself to carry out the off-line external sample piece measurement check-up of equipment to check simultaneously and adjust instrument parameter, its work load is very big, the ray tube energy after full standard adjustment is the optimal state. In addition, to ensure that the environmental disturbance errors are eliminated before each steel strip is measured, the gauge automatically performs a simple internal sample calibration operation (with the sample installed inside the apparatus) before each strip enters the finishing stand, known as zero standard operation.
The accuracy of the thickness gauge is an important parameter, and the state of the tube is a key factor of the measurement accuracy of the thickness gauge. The installation position of the ray tube is slightly changed under the influence of the on-site vibration environment in actual production, and the radiation capacity is weakened due to the aging of the electric equipment, so that the energy change of the ray tube exists objectively.
In order to judge whether the energy of the instrument equipment and the ray tube meets the measurement requirement, in reality, a technician sets the actual rolled steel plates with various specifications by installing a calibration frame, firstly measures the thickness of the steel plates by using the instrument and records the thickness, simultaneously manually measures the same steel plates by using a micrometer and records the thickness, compares the measurement result of the instrument with the manual measurement result of the micrometer, and deduces whether the energy of the ray tube of the multifunctional instrument meets the measurement requirement from the side surface. Such operations are time-consuming and laborious, affect the surrounding environment, and the measurement errors of personnel, which lead to an increase in uncertainty of the judgment result, and how to quantitatively evaluate the change trend of the state of the tube of the thickness gauge by using a simple method is a problem that a technician has to face.
Disclosure of Invention
1. Problems to be solved
Aiming at the problems existing in the prior art, the invention aims to provide the judging method for judging the state change trend of the ray tube of the hot-rolled multifunctional thickness meter, and the energy data of the ray tube used by the multifunctional thickness meter is analyzed, so that the change situation of the energy state of the ray tube of the thickness meter can be reflected simply, conveniently and objectively, key elements of the thickness meter thickness measuring equipment of a steel rolling field instrument can be maintained in time conveniently, and the fault probability of the equipment can be effectively prevented and reduced.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme.
The invention relates to a method for judging the state change trend of a hot-rolled multifunctional thickness gauge ray tube, which comprises the steps of zero standard data chart arrangement analysis: the method comprises the steps of taking a ray tube S1 in a multifunctional thickness meter as a study object, adopting a certain specification standard sample piece of the multifunctional thickness meter equipment to carry out equipment offline external sample piece measurement, collecting energy data of the specification standard sample piece measured by the ray tube S1 at a certain time point, namely zero standard data, collecting zero standard data of a group of ray tubes S1 in a period of time in a sequence of one month time interval, sorting the zero standard data, generating a corresponding chart for the zero standard data of each group of the ray tubes S1 by utilizing a data software derived data function option, and indicating that the energy state of the ray tube S1 in the multifunctional thickness meter changes when the chart has abrupt change at a certain time point and the point inspection personnel is required to pay attention.
As a further improvement of the invention, when the zero standard data chart is suddenly changed at a certain time point, the full standard data energy curve is needed to carry out comprehensive calculation, wherein all standard sample sheets of the multifunctional thickness measuring instrument are adopted to carry out off-line external sample sheet measurement of the equipment, a group of energy data of all standard sample sheets measured by the ray tube S1 at a certain time point is collected and is called full standard data, the full standard data of the ray tube S1 at different time points are derived through data software, each group of full standard data at different time points is edited and arranged to form an independent ray tube S1 energy curve, and when the energy curve trend of the ray tube S1 at a certain time point is obviously inconsistent with that of the ray tube S1 at other time points, the state of the ray tube S1 is indicated to change, and point inspection focus attention is needed.
As a further improvement of the invention, the trend of the energy curve of the ray tube S1 at a certain time point appearsWhen the energy value is obviously changed, the state change condition of the ray tube is judged by calculating the energy ratio of the ray tube S1, wherein the total standard data of more than one year is used as initial total standard data, and the energy value corresponding to the initial total standard data is Q 0 The energy values corresponding to the full standard data of the ray tube S1 at different time points derived through the data software are Q n The energy ratio of the ray tube S1 at different time points is M n ，M n ＝Q n /Q n-1 When the energy ratio M at a certain time point is found n When the abrupt point occurs, it is considered as a critical point for the state change of the tube S1, and at this time, it is necessary to adjust the position of the tube S1 or replace the tube S1.
As a further improvement of the present invention, when M n <0.8M n-1 In this case, the state of the tube S1 is abnormal, and at this time, it is necessary to adjust the position of the tube S1 or replace the tube S1.
3. Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the method for judging the state change trend of the hot-rolled multifunctional thickness gauge tube, when a point inspection person intuitively recognizes that zero standard data of a chart at the time point is problematic, further measures can be taken to conduct more detailed judgment, and further whether the energy state of the tube S1 is changed or not can be judged preliminarily and intuitively, so that the traditional manual measurement error is avoided, the state of the thickness gauge tube can be quantitatively evaluated by a simple method, the workload of staff is greatly reduced, and the detection efficiency is improved.
(2) According to the method for judging the state change trend of the hot-rolled multifunctional thickness gauge tube, when the energy curve of the tube S1 at a certain time point is obviously inconsistent with the energy curve trend of the tube S1 at other time points, the state of the tube S1 is indicated to be changed, point detection is needed to pay attention, at the moment, the state of the tube S1 is indicated to be changed correspondingly, and a worker needs to check whether the tube S1 needs to be subjected to position adjustment or corresponding accessory replacement. By analyzing the energy data of the ray tube used by the multifunctional thickness gauge, the change condition of the energy state of the ray tube of the thickness gauge can be reflected simply, conveniently and objectively, key elements of the thickness gauge thickness measuring equipment of the steel rolling field instrument can be maintained in time, and the fault probability of the equipment is effectively prevented and reduced.
(3) According to the method for judging the state change trend of the hot-rolled multifunctional thickness meter tube, on one hand, manpower and material resources are saved, the working efficiency and the working quality are improved, on the other hand, the degradation trend of key elements is found in time, faults are effectively avoided, and a good effect can be exerted in the field of large-scale thickness meters in the steel rolling industry field; meanwhile, the blank of detection and maintenance of the high-precision thickness gauge tube in the steel rolling site is made up, the method is simple and reliable, and the judging method can be popularized and applied in maintenance of all large-scale gauges using similar tube from the aspect of application range, and has wide application prospect.
Drawings
Fig. 1 shows first full scale data Q of a tube S1 1 Is an energy profile of (a);
fig. 2 shows second full scale data Q of the tube S1 2 Is an energy profile of (a);
fig. 3 shows second full scale data Q of the tube S1 3 Is an energy profile of (a);
FIG. 4 shows the second full scale energy ratio M 1 Is a graph of (2);
FIG. 5 shows the third full scale energy ratio M 1 Is a graph of (2);
fig. 6 is a state change trend chart of the radiation tube S1.
Detailed Description
For a further understanding of the present invention, the present invention will be described in detail with reference to the drawings.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The invention is further described below with reference to examples.
Example 1
The method for judging the state change trend of the hot-rolled multifunctional thickness gauge ray tube of the embodiment comprises the steps of zero standard data chart arrangement analysis: the multifunctional thickness meter comprises a left tube and a right tube, which are S1 and S2 respectively, the tube S1 in the multifunctional thickness meter is only used as a research object, a certain specification standard sample piece of the multifunctional thickness meter equipment is adopted to carry out off-line external sample piece measurement of the equipment, and energy data of the specification standard sample piece measured by the tube S1 at a certain time point is collected and is called zero standard data. The zero standard data of a group of ray tubes S1 in a period of time are collected in sequence at intervals of one month, then the zero standard data of each group of ray tubes S1 are sorted, the collected zero standard data of each group of ray tubes S1 are generated into corresponding charts by utilizing data software derived data function options, when the charts have mutation at a certain time point, the change of the energy states of the ray tubes S1 in the multifunctional thickness meter is indicated, at the moment, the important attention of a checking staff is needed, when the checking staff intuitively recognizes that the zero standard data of the chart at the time point has problems, further measures can be taken to carry out more detailed judgment, further whether the energy states of the ray tubes S1 are changed or not can be judged preliminarily intuitively, the traditional manual measurement errors are avoided, the state of the ray tubes of the thickness meter can be quantitatively evaluated by a simple method, the workload of staff is greatly reduced, and meanwhile, the detection efficiency is improved.
When the zero standard data chart is suddenly changed at a certain time point, the full-scale data energy curve is needed to carry out full-scale calculation, or the full-scale data energy curve is needed to carry out full-scale calculation when the multifunctional thickness gauge is required to carry out full-scale detection, so that the full-scale detection of the energy state of the tube of the multifunctional thickness gauge is ensured, and the change condition of the energy state of the tube can be accurately detected. The off-line external sample measurement is performed by adopting each specification standard sample of the multifunctional thickness measuring instrument, and a group of energy data of each specification standard sample measured by the ray tube S1 at a certain time point is collected and is called full standard data. And the total standard data of the ray tube S1 at different time points are derived through data software, and each group of total standard data at different time points is edited and arranged to form an independent ray tube S1 energy curve. Assuming that the field environmental influences are uniformly distributed and the ageing states of the equipment are the same, the energy curve trends of different time points are the same, when the energy curve trend of the ray tube S1 at a certain time point is obviously inconsistent with the energy curve trend of the ray tube S1 at other time points, the state of the ray tube S1 is indicated to be changed, point detection is needed to pay attention to, at the moment, the state of the ray tube S1 is indicated to be correspondingly changed indeed, and a worker needs to further check whether the ray tube S1 needs to be subjected to position adjustment or corresponding accessory replacement. By analyzing the energy data of the ray tube used by the multifunctional thickness gauge, the change condition of the energy state of the ray tube of the thickness gauge can be reflected simply, conveniently and objectively, key elements of the thickness gauge thickness measuring equipment of the steel rolling field instrument can be maintained in time, and the fault probability of the equipment is effectively prevented and reduced.
When the trend of the energy curve of the ray tube S1 at a certain time point is obviously changed, the state change condition of the ray tube is judged by calculating the energy ratio of the ray tube S1, wherein the total standard data of one year above is used as initial total standard data, and the energy value corresponding to the initial total standard data is Q 0 The energy values corresponding to the full standard data of the ray tube S1 at different time points derived through the data software are Q n The energy ratio of the ray tube S1 at different time points is M n ，M n ＝Q n /Q n-1 When the energy ratio M at a certain time point is found n When the abrupt point occurs, it is considered as a critical point for the state change of the tube S1, and at this time, it is necessary to adjust the position of the tube S1 or replace the tube S1. When Mn is equal to Mn-1, the state of the tube S1 is normal; m is M n <0.8M n-1 If the state of the tube S1 is abnormal, the position of the tube S1 needs to be adjusted or the tube S1 needs to be replaced.
Judging and maintaining the state of the radial tube of the thickness gauge under the original condition, wherein the operation time is limited, the workload is large, the procedure is complicated, the manual operation is easy to generate errors, the working efficiency is affected, and the whole working precision can not be effectively ensured; according to the judging method, on one hand, manpower and material resources are saved, the working efficiency and the working quality are improved, on the other hand, the degradation trend of key elements is found in time, the occurrence of faults is effectively avoided, and the method can play a good role in the field of large-scale thickness measuring instruments in the steel rolling industry; meanwhile, the blank of detection and maintenance of the high-precision thickness gauge tube in the steel rolling site is made up, the method is simple and reliable, and the judging method can be popularized and applied in maintenance of all large-scale gauges using similar tube from the aspect of application range, and has wide application prospect.
The examples of the present invention are merely for describing the preferred embodiments of the present invention, and are not intended to limit the spirit and scope of the present invention, and those skilled in the art should make various changes and modifications to the technical solution of the present invention without departing from the spirit of the present invention.
Claims (3)
1. A method for judging state change trend of a hot-rolled multifunctional thickness gauge tube is characterized by comprising the following steps of: the method comprises the steps of zero standard data chart arrangement analysis: taking a ray tube S1 in a multifunctional thickness meter as a research object, adopting a certain specification standard sample piece of the multifunctional thickness meter equipment to carry out equipment offline external sample piece measurement, collecting energy data of the specification standard sample piece measured by the ray tube S1 at a certain time point, namely zero standard data, collecting zero standard data of a group of ray tubes S1 in a period of time in a sequence of one month time interval, sorting the zero standard data, generating a corresponding chart for the zero standard data of each group of the collected ray tubes S1 by utilizing a data deriving function option of data software, and indicating multiple functions when the chart has mutation at a certain time pointThe energy state of the ray tube S1 in the thickness gauge is changed, the important attention of a spot inspector is needed, when the trend of the energy curve of the ray tube S1 at a certain time point is obviously changed, the energy ratio of the ray tube S1 is calculated to judge the state change condition of the ray tube, wherein the total standard data of one year is taken as initial total standard data, and the energy value corresponding to the initial total standard data is Q 0 The energy values corresponding to the full standard data of the ray tube S1 at different time points derived through the data software are Q n The energy ratio of the ray tube S1 at different time points is M n ，M n ＝Q n /Q n-1 When the energy ratio M at a certain time point is found n When the abrupt point occurs, it is considered as a critical point for the state change of the tube S1, and at this time, it is necessary to adjust the position of the tube S1 or replace the tube S1.
2. The method for judging the state change trend of the hot-rolled multifunctional thickness gauge tube according to claim 1, wherein the method comprises the following steps of: when the zero standard data chart is suddenly changed at a certain time point, the energy curve of the full standard data is needed to carry out comprehensive calculation, wherein each standard sample piece of the multifunctional thickness measuring instrument is adopted to carry out off-line external sample piece measurement, a group of energy data of each standard sample piece measured by the ray tube S1 at a certain time point is collected and is called full standard data, the full standard data of the ray tube S1 at different time points are derived through data software, each group of full standard data at different time points is edited and arranged to form an independent ray tube S1 energy curve, and when the energy curve trend of the ray tube S1 at a certain time point is obviously inconsistent with that of the ray tube S1 at other time points, the state of the ray tube S1 is indicated to change, and point detection focus attention is needed.
3. The method for judging the state change trend of the hot-rolled multifunctional thickness gauge tube according to claim 2, wherein the method comprises the following steps of: when M n <0.8M n-1 If the state of the tube S1 is abnormal, the position of the tube S1 needs to be adjusted or moreAnd a tube S1.
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