CN114777694A - Method for judging state change trend of hot-rolled multifunctional thickness gauge ray tube - Google Patents
Method for judging state change trend of hot-rolled multifunctional thickness gauge ray tube Download PDFInfo
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- CN114777694A CN114777694A CN202210315543.7A CN202210315543A CN114777694A CN 114777694 A CN114777694 A CN 114777694A CN 202210315543 A CN202210315543 A CN 202210315543A CN 114777694 A CN114777694 A CN 114777694A
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000005259 measurement Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000011160 research Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 19
- 239000010959 steel Substances 0.000 abstract description 19
- 238000005096 rolling process Methods 0.000 abstract description 9
- 239000000523 sample Substances 0.000 description 17
- 238000007689 inspection Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 235000012431 wafers Nutrition 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
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
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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
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Abstract
The invention discloses a method for judging the state change trend of a hot-rolled multifunctional thickness gauge ray tube, and belongs to the technical field of steel rolling large-scale measuring instruments. The invention comprises zero-mark data chart sorting and analysis: the method comprises the steps of measuring an off-line external sample by using a certain specification standard sample of the multifunctional thickness measuring instrument, acquiring energy data of the specification standard sample measured by a ray tube S1 at a certain time point, namely zero-standard data, collecting the zero-standard data of a group of ray tubes S1 within a period of time, sorting the zero-standard data, generating corresponding graphs by using the acquired zero-standard data of each group of ray tubes S1, and indicating that the energy state of the ray tubes S1 changes when the graphs suddenly change at a certain time point. Aiming at the problems in the prior art, the invention provides a method for judging the state change trend of a hot-rolled multifunctional thickness measuring instrument ray tube, which can simply, conveniently and objectively reflect the change condition of the energy state of the thickness measuring instrument ray 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 hot-rolling multifunctional thickness gauge ray tube.
Background
In the production process of hot-rolled strip steel, a multifunctional thickness measuring instrument is a very important thickness measuring instrument, can measure the transverse profile thickness of finished product strip steel, and has the measuring principle that X rays are generated by ionizing air through a ray tube and are irradiated downwards in a directional mode, the X rays penetrate through the strip steel and then reach a probe receiving end below the strip steel, and the probe receiving end is composed of more than five hundred small scintillation crystal crystals and forms a receiving end which is perpendicular to the running direction of the strip steel and covers the whole width direction of the strip steel. The probe calculates the data such as the thickness of the strip steel through the received X-ray energy.
Along with the lapse of service time, the equipment can generate system drift, which may cause errors of measured data, in order to ensure the precision of the equipment, the thickness measuring instrument needs to be subjected to annual verification, called full-standard work, the full-standard adopts various standard sample wafers (called external standard sample wafers) of the equipment to perform off-line external sample wafer measurement and verification of the equipment, and simultaneously, the parameters of the instrument are verified and adjusted, the workload is large, and the energy of the full-standard adjusted ray tube is in an optimal state. In addition, to ensure that environmental interference errors are eliminated before each strip is measured, the gauge automatically performs a simple internal sample calibration operation (the sample is installed inside the apparatus) before each strip enters the finishing stand, called zero-mark operation.
The accuracy of the thickness measuring instrument is an important parameter, and the condition of the ray tube is a key factor of the measurement accuracy of the left and right thickness measuring instruments. The mounting position of the ray tube is slightly changed under the influence of the field vibration environment in actual production, and the radiation capability is weakened due to the aging of the electrical equipment, so that the energy change of the ray tube is objectively existed.
In order to judge whether the energy of the instrument equipment and the ray tube meets the measurement requirement, in reality, technicians install a calibration frame, place actually rolled steel plates of various specifications, firstly measure and record the thickness of the steel plates by using an instrument, simultaneously manually measure and record the same steel plates by using a micrometer, compare the measurement result of the instrument with the manual measurement result of the micrometer, and deduce whether the energy of the multifunctional instrument ray tube meets the measurement requirement from the side surface. The operation is time-consuming and labor-consuming, influences the surrounding environment and measurement errors of personnel, so that the uncertainty of a judgment result is increased, and how to quantitatively evaluate the change trend of the state of the thickness measuring instrument ray tube by using a simple method is a problem which technicians have to face.
Disclosure of Invention
1. Problems to be solved
Aiming at the problems in the prior art, the invention provides a method for judging the state change trend of a hot-rolled multifunctional thickness gauge ray tube, which can simply, conveniently and objectively reflect the change condition of the energy state of the thickness gauge ray tube by analyzing the energy data of the ray tube used by the multifunctional thickness gauge, is convenient for timely maintaining key elements of the steel rolling field gauge thickness gauge equipment, and effectively prevents and reduces the fault probability of the equipment.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
The invention discloses a method for judging the state change trend of a hot-rolled multifunctional thickness gauge ray tube, which comprises the following steps of arranging and analyzing a zero-standard data chart: the method comprises the steps of taking a ray tube S1 in a multifunctional thickness gauge as a research object, carrying out off-line external sample measurement on a certain specification standard sample of the multifunctional thickness gauge by adopting the multifunctional thickness gauge, collecting energy data of the specification standard sample measured by a ray tube S1 at a certain time point, wherein the energy data are called zero-standard data, collecting and then sorting zero-standard data of a group of ray tubes S1 in a period of time by taking one month as an interval sequence, generating a corresponding chart for the collected zero-standard data of each group of ray tubes S1 by using a data software derived data function option, and when the chart changes suddenly at a certain time point, indicating that the energy state of the ray tube S1 in the multifunctional thickness gauge changes and needing important attention of a point inspection worker.
As a further improvement of the present invention, when the zero-scale data chart has a sudden change at a certain time point, the energy curve of full-scale data is required to be fully calculated, wherein the offline external sample measurement is performed by using each standard sample of the multifunctional thickness measuring instrument, and a set of energy data of each standard sample measured by the ray tube S1 at a certain time point, called full-scale data, is acquired, the full-scale data of the ray tube S1 at different time points is derived by data software, and each set of full-scale data at different time points is edited and collated to form an individual ray tube S1 energy curve, and when the trend of the energy curve of the ray tube S1 at a certain time point is obviously inconsistent with the trend of the energy curve of the ray tube S1 at other time points, the state of the ray tube S1 changes, and the point inspection and focus attention is required.
As a further improvement of the invention, when the trend of the energy curve of the ray tube S1 at a certain time point obviously changes, the state change condition of the ray tube is judged by calculating the energy ratio of the ray tube S1, wherein the full scale data of the previous year is used as the initial full scale data, and the energy value corresponding to the initial full scale data is Q0The energy value corresponding to the full standard data of the ray tube S1 at different time points derived by the data software is QnThe energy ratio of the ray tube S1 at different time points is Mn，Mn＝Qn/Qn-1When finding the energy ratio M at a certain time pointnWhen the abrupt change point occurs, it is considered as a critical point of the state change of the tube S1, and 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 Mn<0.8Mn-1If 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.
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 measuring instrument ray tube, when a point detection worker visually identifies that zero-standard data of the time point of the chart has a problem, further measures can be taken to judge in more detail, so that whether the energy state of the ray tube S1 changes or not can be preliminarily and visually judged, the error of traditional manual measurement is avoided, the quality of the state of the thickness measuring instrument ray tube can be quantitatively evaluated by a simple method, the workload of the worker is greatly reduced, and the detection efficiency is improved.
(2) When the trend of an energy curve of a tube S1 at a certain time point is obviously inconsistent with the trend of an energy curve of a tube S1 at other time points, the state of the tube S1 is changed, point inspection attention is needed, the state of the tube S1 is changed correspondingly, and a worker needs to further check whether the tube S1 needs to perform position adjustment or corresponding part replacement. Through 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 simply, conveniently and objectively reflected, key elements of the thickness measuring equipment of the steel rolling field gauge can be conveniently maintained in time, and the fault probability of the equipment can be effectively prevented and reduced.
(3) According to the method for judging the state change trend of the hot-rolled multifunctional thickness gauge ray 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 the method can play a good role in the field of large-scale thickness gauges in the steel rolling industry; meanwhile, the blank of the detection and maintenance of the high-precision thickness measuring instrument ray tube on the steel rolling site is made up, the method is simple and reliable, and the judging method can be popularized and applied to the maintenance of all large instruments using similar ray tubes in terms of application range, and has wide application prospect.
Drawings
FIG. 1 shows first full scale data Q of a ray tube S11Energy profile of (d);
FIG. 2 shows second full scale data Q of a ray tube S12Energy profile of (d);
FIG. 3 shows second full scale data Q of a ray tube S13Energy profile of (d);
FIG. 4 is a second full scale energy ratio M1A graph of (a);
FIG. 5 is a third time full scale energy ratio M1A graph of (a);
fig. 6 is a state change trend chart of the ray tube S1.
Detailed Description
For a further understanding of the invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed 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 present invention will be further described with reference to the following examples.
Example 1
The method for judging the state change trend of the hot-rolled multifunctional thickness gauge ray tube comprises the following steps of arranging and analyzing a zero-standard data chart: the multifunctional thickness measuring instrument comprises a left ray tube and a right ray tube which are respectively S1 and S2, a ray tube S1 in the multifunctional thickness measuring instrument is only used as a research object, a certain standard sample of the multifunctional thickness measuring instrument is adopted to carry out off-line external sample measurement, and energy data of the standard sample of the certain specification measured by a ray tube S1 at a certain time point are collected and called as zero standard data. The zero standard data of a group of the ray tubes S1 in a period of time are collected and then are sorted, a data exporting function option of data software is utilized to generate a corresponding chart from the collected zero standard data of each group of the ray tubes S1, when the chart suddenly changes at a certain time point, the energy state of the ray tube S1 in the multifunctional thickness measuring instrument is changed, a point inspector needs to pay attention to the point inspector at the moment, when the point inspector visually identifies that the zero standard data of the time point of the chart has a problem, further measures can be taken to judge in detail, whether the energy state of the ray tube S1 changes or not can be preliminarily and visually judged, the traditional error of manual measurement is avoided, the condition of the ray tube of the thickness measuring instrument can be quantitatively evaluated by a simple method, and the workload of workers is greatly reduced, meanwhile, the detection efficiency is improved.
When the zero standard data chart changes suddenly at a certain time point, the energy curve of the full standard data is required to be comprehensively calculated at the moment, or when the multifunctional thickness gauge is required to be comprehensively detected, the energy curve of the full standard data is also required to be comprehensively calculated generally, so that the energy state of the multifunctional thickness gauge ray tube is comprehensively detected, and the change condition of the energy state of the ray tube can be more accurately detected. The method comprises the steps of measuring off-line external samples of the multifunctional thickness measuring instrument by using various standard samples of the multifunctional thickness measuring instrument, and collecting a group of energy data of the standard samples of various specifications measured by a ray tube S1 at a certain time point, wherein the data is called full-standard data. And (4) deriving full scale data of the ray tube S1 at different time points through data software, and editing and sorting each group of full scale data at different time points to form an energy curve of the single ray tube S1. Assuming that the field environment influences are uniformly distributed, the aging states of the devices are the same, the trends of the energy curves at different time points of the devices should be the same, when the trend of the energy curve of the tube S1 at a certain time point is obviously inconsistent with the trend of the energy curve of the tube S1 at other time points, it is indicated that the state of the tube S1 changes, a point inspection focus is needed, at this time, it is indicated that the state of the tube S1 changes correspondingly, and a worker needs to further check whether the tube S1 needs to be subjected to position adjustment or corresponding accessory replacement. Through 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 simply, conveniently and objectively reflected, the key elements of the thickness gauge equipment of the steel rolling field gauge can be conveniently maintained in time, and the fault probability of the equipment can be 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 full scale data of the previous year is used as the initial full scale data,the energy value corresponding to the initial full-scale data is Q0The energy value corresponding to the full standard data of the ray tube S1 at different time points derived by the data software is QnThe energy ratio of the ray tube S1 at different time points is Mn，Mn＝Qn/Qn-1When finding the energy ratio M at a certain time pointnWhen the abrupt change point occurs, it is considered as a critical point of the state change of the tube S1, and it is necessary to adjust the position of the tube S1 or replace the tube S1. If Mn is approximately equal to Mn-1, the state of the ray tube S1 is normal; m is a group ofn<0.8Mn-1If 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.
The state of a ray tube of the thickness measuring instrument is judged and maintained under the original condition, the operation time is limited, the workload is large, the procedure is complicated, errors are easy to occur in manual operation, the working efficiency is influenced, and the integral working precision cannot be effectively guaranteed; 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 fault is effectively avoided, and the judging method can play a better role in the field of large-scale thickness measuring instruments in the steel rolling industry; meanwhile, the blank of the detection and maintenance of the high-precision thickness measuring instrument ray tube on the steel rolling site is made up, the method is simple and reliable, and the judgment method can be popularized and applied to the maintenance of all large instruments using similar ray tubes in view of application range, and has wide application prospect.
The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention.
Claims (4)
1. A method for judging the state change trend of a hot-rolled multifunctional thickness gauge ray tube is characterized by comprising the following steps: the method comprises the following steps of zero-mark data chart sorting and analysis: the method comprises the steps of taking a ray tube S1 in a multifunctional thickness gauge as a research object, adopting a certain specification standard sample of the multifunctional thickness gauge to measure an off-line external sample of the equipment, collecting energy data of the specification standard sample measured by a ray tube S1 at a certain time point, wherein the energy data are called as zero standard data, collecting the zero standard data of a group of ray tubes S1 in a period of time by taking one month as an interval sequence, arranging the zero standard data, generating a corresponding chart for the collected zero standard data of each group of ray tubes S1 by using a data software derived data function option, and when the chart changes suddenly at a certain time point, indicating that the energy state of the ray tube S1 in the multifunctional thickness gauge changes and needing attention of point detection personnel.
2. The method for judging the state change trend of the hot-rolled multifunctional thickness gauge ray tube according to claim 1, wherein the method comprises the following steps: when the zero-scale data chart has a sudden change at a certain time point, the energy curve of full-scale data is required to be comprehensively calculated, wherein the offline external sample measurement of equipment is carried out by adopting each specification standard sample of the multifunctional thickness measuring instrument equipment, a group of energy data of each specification standard sample measured by a ray tube S1 at a certain time point is collected and called as full-scale data, the full-scale data of the ray tube S1 at different time points is derived through data software, each group of full-scale data at different time points is edited and collated to form an independent energy curve of the ray tube S1, and when the trend of the energy curve of the ray tube S1 at a certain time point is obviously inconsistent with that of the energy curve of the ray tube S1 at other time points, the state of the ray tube S1 is changed, and point detection focus attention is required.
3. The method for judging the state change trend of the hot-rolled multifunctional thickness gauge ray tube according to claim 2, wherein the method comprises the following steps: 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 full-scale data of the previous year is used as initial full-scale data, and the energy value corresponding to the initial full-scale data is Q0' TongtongThe energy value corresponding to the full standard data of the ray tube S1 at different time points derived by the data software is QnThe ratio of the energy of the ray tube S1 at different time points is Mn，Mn＝Qn/Qn-1When finding the energy ratio M at a certain time pointnWhen the abrupt change point occurs, it is considered as a critical point of the state change of the tube S1, and it is necessary to adjust the position of the tube S1 or replace the tube S1.
4. The method for judging the state change trend of the hot-rolled multifunctional thickness gauge ray tube according to claim 3, wherein the method comprises the following steps: when M isn<0.8Mn-1If 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.
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