CN117388062A - Pressure resistance detecting system based on stainless steel pipe - Google Patents
Pressure resistance detecting system based on stainless steel pipe Download PDFInfo
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 181
- 239000010935 stainless steel Substances 0.000 title claims abstract description 181
- 238000005452 bending Methods 0.000 claims abstract description 109
- 230000006835 compression Effects 0.000 claims abstract description 55
- 238000007906 compression Methods 0.000 claims abstract description 55
- 238000012512 characterization method Methods 0.000 claims abstract description 51
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 12
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- 238000012360 testing method Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000004566 building material Substances 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
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- 238000005259 measurement Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
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- G01N2203/067—Parameter measured for estimating the property
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Abstract
The invention relates to the field of intelligent detection, in particular to a stainless steel pipe-based compression resistance detection system, which comprises the steps of calculating bending parameters according to a plurality of characteristic points on the outline of a steel pipe in a stainless steel pipe image through an electric control module, calculating fracture parameters based on echo signal frequency, calculating bending resistance characterization parameters, and dividing the bending state of the stainless steel pipe; collecting pressure values born by a stainless steel pipe, dividing the compression-resistant state of the stainless steel pipe based on the pressure values, and performing temperature test on the stainless steel pipe in a first compression-resistant state, wherein the temperature test comprises the steps of controlling a temperature control module to cool the stainless steel pipe, controlling the pressure module to continuously apply pressure to the stainless steel pipe, calculating the variable quantity of the corresponding bending-resistant characterization parameters of the stainless steel pipe before and after cooling, and judging whether the compression resistance of the stainless steel pipe is qualified or not based on the variable quantity; the invention monitors the state of the stainless steel pipe in real time, considers the influence of temperature on the compression resistance of the stainless steel pipe, and has higher compression resistance detection accuracy on the stainless steel pipe.
Description
Technical Field
The invention relates to the field of intelligent detection, in particular to a stainless steel tube-based pressure resistance detection system.
Background
In the production, installation and use processes of the stainless steel pipe, the compression resistance is a key technical index; the compressive property of the stainless steel tube directly affects the application reliability and safety of the stainless steel tube in various fields;
chinese patent publication No.: CN114923783a discloses a building material pressure resistance detecting device capable of automatically feeding building materials; the technical implementation scheme is as follows: the utility model provides a building material compressive property detection device, is including placing seat, mounting bracket, pneumatic cylinder, briquetting, feeding mechanism and positioning mechanism, places the seat top and is provided with the mounting bracket with bolt fastening, and the mounting bracket top is provided with the pneumatic cylinder with bolt fastening, is provided with the briquetting on the pneumatic cylinder telescopic link, places the seat top and is provided with feeding mechanism, places the seat downside and is provided with positioning mechanism. According to the invention, the building material is pushed by the sliding frame, so that the effect of automatically pushing the building material to the right side of the top of the placement seat is achieved, and the building material is effectively limited by the positioning block;
however, in the prior art, the influence of temperature on the compression resistance of the stainless steel pipe is not considered, and the stainless steel pipe has wide application environment, so that the stainless steel pipe has different temperatures under different environments, particularly, the temperature difference is converted during outdoor application, the compression resistance of the stainless steel pipe is influenced by the temperature, and the influence degrees of the steel pipes with different specifications are different.
Disclosure of Invention
In order to solve the problem that the influence of temperature change on the stainless steel tube is not considered in the prior art when the pressure resistance detection is carried out, the invention provides a pressure resistance detection system based on the stainless steel tube, which comprises the following components:
the pressure module is used for fixing the stainless steel tube and applying pressure to the stainless steel tube;
the temperature control module is used for cooling the stainless steel tube;
the acquisition module comprises an image acquisition unit which is arranged on the outer side of the stainless steel tube and used for acquiring images of the stainless steel tube, and an ultrasonic tester which is arranged on the outer side of the stainless steel tube, used for transmitting ultrasonic waves and used for detecting echo signals;
the electric control module is respectively connected with the pressure module, the temperature control module and the acquisition module;
the electronic control module is used for calculating bending parameters according to a plurality of characteristic points on the steel tube outline in the stainless steel tube image acquired by the acquisition module, calculating fracture parameters based on the echo signal frequency acquired by the acquisition module, calculating bending resistance characterization parameters based on the bending parameters and the fracture parameters, and dividing the bending state of the stainless steel tube based on the bending resistance characterization parameters;
responding to a preset condition, collecting a pressure value born by a stainless steel pipe, and dividing the compression-resistant state of the stainless steel pipe based on the pressure value, wherein the preset condition is that the stainless steel pipe is converted from a second bending state to a first bending state;
the method comprises the steps of performing temperature test on the stainless steel pipe in a first compression-resistant state, controlling the temperature control module to cool the stainless steel pipe, controlling the pressure module to continuously apply pressure to the stainless steel pipe, calculating the variable quantity of the corresponding bending-resistant characterization parameters of the stainless steel pipe before and after cooling, and judging whether the compression resistance of the stainless steel pipe is qualified or not based on the variable quantity.
Further, the electronic control module calculates a bending parameter according to formula (1),
in the formula (1), E represents a bending parameter, xi represents a displacement amount of an i-th point in the steel pipe profile after pressure is applied, and n represents the number of characteristic points on the steel pipe profile in the obtained stainless steel pipe image.
Further, the electronic control module calculates fracture parameters according to the formula (2);
D＝|I-I 0 | (2)
in the formula (2), D represents a fracture parameter, I represents the frequency of an echo signal after pressure is applied, I 0 Representing the initial echo signal frequency.
Further, the electronic control module calculates bending resistance characterization parameters according to the formula (3);
K＝D×E×γ (3)
in the formula (3), K represents an bending resistance characteristic parameter, D represents a fracture characteristic parameter, E represents a bending characteristic parameter, and γ represents a conversion coefficient.
Further, the electric control module divides the bending state of the stainless steel tube based on the bending-resistant characterization parameter, wherein,
if the bending resistance characterization parameter is larger than the preset bending resistance characterization parameter threshold, the electric control module divides the bending state of the stainless steel tube into a first bending state,
and if the bending resistance characterization parameter is smaller than or equal to a preset bending resistance characterization parameter threshold, the electric control module divides the bending state of the stainless steel tube into a second bending state.
Further, the electronic control module divides the compression-resistant state of the stainless steel tube based on the pressure value, wherein,
if the pressure value is larger than a preset pressure threshold value, judging that the compression state of the stainless steel tube is a first compression state;
and if the pressure value is smaller than or equal to a preset pressure threshold value, judging that the compression state of the stainless steel tube is a second compression state.
Further, the electric control module controls the temperature control module to cool the stainless steel tube, wherein the surface temperature of the stainless steel tube is reduced to a preset temperature.
Further, the electric control module calculates the variation of the bending resistance characterization parameters corresponding to the stainless steel tube before and after cooling,
ΔK＝|K 2 -K 1 | (4)
in the formula (4), delta K represents the variation of the bending resistance characterization parameter of the stainless steel tube, K 2 Represent the bending resistance characterization parameter after temperature adjustment, K 1 And the characteristic parameter of bending resistance before temperature adjustment is represented.
Further, the electronic control module judges whether the compressive resistance of the stainless steel tube is qualified or not based on the variation, wherein,
and if the variation is smaller than a preset variation threshold, judging that the compression resistance of the stainless steel tube is qualified.
Further, the electronic control module is also connected with an external display screen and used for displaying the judging result of the electronic control module.
Compared with the prior art, the method and the device have the advantages that the electric control module calculates the bending parameters according to a plurality of characteristic points on the outline of the steel pipe in the stainless steel pipe image, calculates the fracture parameters based on the echo signal frequency, calculates the bending resistance characterization parameters, and divides the bending state of the stainless steel pipe; collecting pressure values born by a stainless steel pipe, dividing the compression-resistant state of the stainless steel pipe based on the pressure values, and performing temperature test on the stainless steel pipe in a first compression-resistant state, wherein the temperature test comprises the steps of controlling a temperature control module to cool the stainless steel pipe, controlling the pressure module to continuously apply pressure to the stainless steel pipe, calculating the variable quantity of the corresponding bending-resistant characterization parameters of the stainless steel pipe before and after cooling, and judging whether the compression resistance of the stainless steel pipe is qualified or not based on the variable quantity; according to the invention, the state of the stainless steel pipe is monitored in real time, the influence of temperature on the compression resistance of the stainless steel pipe is considered, and the compression resistance detection accuracy of the stainless steel pipe is higher;
particularly, the fracture parameter is calculated based on the echo signal frequency acquired by the acquisition module, and the fracture parameter is calculated, so that the fracture parameter is difficult to observe in time by naked eyes when microscopic changes are generated in the stainless steel pipe, and the echo signal frequency is changed when the microscopic changes are generated in the stainless steel pipe through ultrasonic detection, so that the internal change condition of the stainless steel pipe can be accurately identified through calculation of the fracture parameter, and the compression resistance of the stainless steel pipe is accurately detected;
in particular, the electronic control module calculates an anti-bending characterization parameter based on the bending parameter and the fracture parameter; whether the stainless steel pipe deforms or not can be identified through the bending parameters, whether the stainless steel pipe breaks or not can be identified through the breaking parameters, the state of the stainless steel pipe can be accurately identified by calculating the bending resistance characterization parameters, further the bending resistance characterization parameters are calculated, the tendency of bending deformation is characterized, and the compression resistance of the stainless steel pipe is accurately detected;
in particular, the electric control module judges whether the compression resistance of the stainless steel pipe is qualified or not based on the variable quantity of the bending resistance characterization parameter, and the stainless steel pipe is widely applied, so that the temperature environment of the stainless steel pipe is required to be adjusted to be lower in order to ensure that the stainless steel pipe still has higher compression resistance in a low-temperature environment, when the stainless steel pipe is in the lower-temperature environment, the same pressure value is applied, the influence of the temperature on the stainless steel pipe is judged according to the variable quantity of the bending resistance characterization parameter of the stainless steel pipe, when the variable quantity of the bending resistance characterization parameter of the stainless steel pipe is smaller, the influence of the temperature on the stainless steel pipe is smaller, and the compression resistance of the stainless steel pipe in different temperature environments is considered, so that the compression resistance detection of the stainless steel pipe is more comprehensive and accurate.
Drawings
Fig. 1 is a structural diagram of a stainless steel pipe-based pressure resistance detection system according to an embodiment of the invention.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements 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, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1, which is a structural diagram of a stainless steel pipe-based pressure resistance detection system according to an embodiment of the present invention, the pressure resistance detection system of the stainless steel pipe includes:
the pressure module is used for fixing the stainless steel tube and applying pressure to the stainless steel tube;
the temperature control module is used for cooling the stainless steel tube;
the acquisition module comprises an image acquisition unit which is arranged on the outer side of the stainless steel tube and used for acquiring images of the stainless steel tube, and an ultrasonic tester which is arranged on the outer side of the stainless steel tube, used for transmitting ultrasonic waves and used for detecting echo signals;
the electric control module is respectively connected with the pressure module, the temperature control module and the acquisition module;
the electronic control module is used for calculating bending parameters according to a plurality of characteristic points on the steel tube outline in the stainless steel tube image acquired by the acquisition module, calculating fracture parameters based on the echo signal frequency acquired by the acquisition module, calculating bending resistance characterization parameters based on the bending parameters and the fracture parameters, and dividing the bending state of the stainless steel tube based on the bending resistance characterization parameters;
responding to a preset condition, collecting a pressure value born by a stainless steel pipe, and dividing the compression-resistant state of the stainless steel pipe based on the pressure value, wherein the preset condition is that the stainless steel pipe is converted from a second bending state to a first bending state;
the method comprises the steps of performing temperature test on the stainless steel pipe in a first compression-resistant state, controlling the temperature control module to cool the stainless steel pipe, controlling the pressure module to continuously apply pressure to the stainless steel pipe, calculating the variable quantity of the corresponding bending-resistant characterization parameters of the stainless steel pipe before and after cooling, and judging whether the compression resistance of the stainless steel pipe is qualified or not based on the variable quantity.
Specifically, the specific structure of the pressure module is not limited, the pressure module can be composed of a press machine and a clamping device, the clamping device clamps the stainless steel tube, and the press machine applies pressure to a preset position, which is the prior art and is not repeated.
Specifically, the specific structure of the acquisition module is not limited, the image acquisition unit only needs to acquire the stainless steel tube image, and the image acquisition unit can be an industrial CCD camera, which is the prior art and is not repeated.
Specifically, the specific structure of the electronic control module is not limited, and the electronic control module can be composed of logic components, wherein the logic components can be field programmable components, computers, microprocessors in the computers and the like, and the details are not repeated here.
Specifically, the invention does not limit the specific structure of the temperature control module, and only needs to realize cooling of the stainless steel tube, and no description is repeated.
Specifically, the electronic control module calculates a bending property parameter according to formula (1),
in the formula (1), E represents a bending parameter, xi represents a displacement amount of an i-th point in the steel pipe profile after pressure is applied, and n represents the number of characteristic points on the steel pipe profile in the obtained stainless steel pipe image.
Specifically, the electronic control module calculates a fracture parameter according to formula (2);
D＝|I-I 0 | (2)
in the formula (2), D represents a fracture parameter, I represents the frequency of an echo signal after pressure is applied, I 0 Representing the initial echo signal frequency.
Specifically, the fracture parameter is calculated based on the echo signal frequency obtained by the acquisition module, and the fracture parameter is calculated, so that the fracture parameter is difficult to observe in time by naked eyes when microscopic changes are generated in the stainless steel pipe, and the echo signal frequency is changed when the microscopic changes are generated in the stainless steel pipe through ultrasonic detection, so that the internal change condition of the stainless steel pipe can be accurately identified through calculation of the fracture parameter, and the compression resistance of the stainless steel pipe is accurately detected.
Specifically, the electronic control module calculates bending resistance characterization parameters according to the formula (3);
K＝D×E×γ (3)
in the formula (3), K represents an bending resistance characteristic parameter, D represents a fracture characteristic parameter, E represents a bending characteristic parameter, and γ represents a conversion coefficient.
Specifically, the electronic control module calculates an anti-bending characterization parameter based on the bending parameter and the fracture parameter; the stainless steel pipe can be identified whether to deform or not through the bending parameters, whether the stainless steel pipe is broken or not can be identified through the breaking parameters, the state of the stainless steel pipe can be accurately identified by calculating the bending-resistant characterization parameters, and the pressure resistance of the stainless steel pipe can be accurately detected.
In particular, the electric control module divides the bending state of the stainless steel tube based on bending resistance characterization parameters, wherein,
if the bending resistance characterization parameter is larger than the preset bending resistance characterization parameter threshold, the electric control module divides the bending state of the stainless steel tube into a first bending state,
and if the bending resistance characterization parameter is smaller than or equal to a preset bending resistance characterization parameter threshold, the electric control module divides the bending state of the stainless steel tube into a second bending state.
Specifically, in this embodiment, the preset bending-resistant characteristic parameter threshold is obtained through experimental measurement, the stainless steel pipe which meets the compression-resistant standard and has known compression resistance is detected, the bending-resistant characteristic parameter when the press reaches the compression resistance is obtained, and the average value is taken and recorded as the preset bending-resistant characteristic parameter threshold.
In particular, the electronic control module divides the compression-resistant state of the stainless steel tube based on the pressure value, wherein,
if the pressure value is larger than a preset pressure threshold value, judging that the compression state of the stainless steel tube is a first compression state;
and if the pressure value is smaller than or equal to a preset pressure threshold value, judging that the compression state of the stainless steel tube is a second compression state.
Specifically, the preset pressure threshold is a preset pressure threshold obtained by measuring the pressure resistance values of a plurality of stainless steel pipes in advance and recording the average value of the pressure resistance values as the preset pressure threshold.
Specifically, the electric control module controls the temperature control module to cool the stainless steel pipe, wherein the surface temperature of the stainless steel pipe is reduced to a preset temperature.
Specifically, the preset temperature is minus 20 ℃.
In particular to the electric control module which calculates the variation of the corresponding bending resistance characterization parameters of the stainless steel tube before and after cooling,
ΔK＝|K 2 -K 1 | (4)
in the formula (4), delta K represents the variation of the bending resistance characterization parameter of the stainless steel tube, K 2 Represent the bending resistance characterization parameter after temperature adjustment, K 1 And the characteristic parameter of bending resistance before temperature adjustment is represented.
Specifically, the electronic control module judges whether the compressive resistance of the stainless steel pipe is qualified or not based on the variation, wherein,
and if the variation is smaller than a preset variation threshold, judging that the compression resistance of the stainless steel tube is qualified.
Specifically, the preset variation threshold is obtained by measuring the variation of bending resistance characterization parameters of a plurality of stainless steel pipes meeting the compression resistance standard at different temperatures in advance, and taking the average value as the preset variation threshold.
Specifically, the electric control module judges whether the compression resistance of the stainless steel pipe is qualified or not based on the variable quantity of the bending resistance characterization parameter, and the stainless steel pipe is widely applied, so that the temperature environment of the stainless steel pipe is required to be adjusted to be lower in order to ensure that the stainless steel pipe still has higher compression resistance in a low-temperature environment, when the stainless steel pipe is in the lower-temperature environment, the same pressure value is applied, the influence of the temperature on the stainless steel pipe is judged according to the variable quantity of the bending resistance characterization parameter of the stainless steel pipe, when the variable quantity of the bending resistance characterization parameter of the stainless steel pipe is smaller, the influence of the temperature on the stainless steel pipe is smaller, and the compression resistance of the stainless steel pipe in different temperature environments is considered, so that the compression resistance detection of the stainless steel pipe is more comprehensive and accurate.
Specifically, the electronic control module is also connected with an external display screen and used for displaying the judging result of the electronic control module.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
Claims (10)
1. A stainless steel pipe-based pressure resistance detection system, comprising:
the pressure module is used for fixing the stainless steel tube and applying pressure to the stainless steel tube;
the temperature control module is used for cooling the stainless steel tube;
the acquisition module comprises an image acquisition unit which is arranged on the outer side of the stainless steel tube and used for acquiring images of the stainless steel tube, and an ultrasonic tester which is arranged on the outer side of the stainless steel tube, used for transmitting ultrasonic waves and used for detecting echo signals;
the electric control module is respectively connected with the pressure module, the temperature control module and the acquisition module;
the electronic control module is used for calculating bending parameters according to a plurality of characteristic points on the steel tube outline in the stainless steel tube image acquired by the acquisition module, calculating fracture parameters based on the echo signal frequency acquired by the acquisition module, calculating bending resistance characterization parameters based on the bending parameters and the fracture parameters, and dividing the bending state of the stainless steel tube based on the bending resistance characterization parameters;
responding to a preset condition, collecting a pressure value born by a stainless steel pipe, and dividing the compression-resistant state of the stainless steel pipe based on the pressure value, wherein the preset condition is that the stainless steel pipe is converted from a second bending state to a first bending state;
the method comprises the steps of performing temperature test on the stainless steel pipe in a first compression-resistant state, controlling the temperature control module to cool the stainless steel pipe, controlling the pressure module to continuously apply pressure to the stainless steel pipe, calculating the variable quantity of the corresponding bending-resistant characterization parameters of the stainless steel pipe before and after cooling, and judging whether the compression resistance of the stainless steel pipe is qualified or not based on the variable quantity.
2. The stainless steel tube-based pressure resistance detection system according to claim 1, wherein the electronic control module calculates a bending property parameter according to formula (1),
in the formula (1), E represents a bending parameter, xi represents a displacement amount of an i-th point in the steel pipe profile after pressure is applied, and n represents the number of characteristic points on the steel pipe profile in the obtained stainless steel pipe image.
3. The stainless steel pipe-based pressure resistance detection system according to claim 1, wherein the electronic control module calculates a fracture parameter according to formula (2);
D＝|I-I 0 | (2)
in the formula (2), D represents a fracture parameter, I represents the frequency of an echo signal after pressure is applied, I 0 Representing the initial echo signal frequency.
4. The stainless steel tube-based pressure resistance detection system according to claim 1, wherein the electronic control module calculates a bending resistance characterization parameter according to formula (3);
K＝D×E×γ (3)
in the formula (3), K represents an bending resistance characteristic parameter, D represents a fracture characteristic parameter, E represents a bending characteristic parameter, and γ represents a conversion coefficient.
5. The stainless steel tube-based pressure resistance detection system according to claim 4, wherein the electronic control module divides the bending state of the stainless steel tube based on the bending-resistant characteristic parameter,
if the bending resistance characterization parameter is larger than the preset bending resistance characterization parameter threshold, the electric control module divides the bending state of the stainless steel tube into a first bending state,
and if the bending resistance characterization parameter is smaller than or equal to a preset bending resistance characterization parameter threshold, the electric control module divides the bending state of the stainless steel tube into a second bending state.
6. The stainless steel tube-based pressure resistance detection system according to claim 5, wherein the electronic control module divides the pressure resistance state of the stainless steel tube based on the pressure value, wherein,
if the pressure value is larger than a preset pressure threshold value, judging that the compression state of the stainless steel tube is a first compression state;
and if the pressure value is smaller than or equal to a preset pressure threshold value, judging that the compression state of the stainless steel tube is a second compression state.
7. The stainless steel pipe-based pressure resistance detection system according to claim 1, wherein the electronic control module controls the temperature control module to cool the stainless steel pipe, wherein the surface temperature of the stainless steel pipe is reduced to a preset temperature.
8. The stainless steel tube-based pressure resistance detection system according to claim 1, wherein the electronic control module calculates the variation of the corresponding bending resistance characterization parameters of the stainless steel tube before and after cooling,
ΔK＝|K 2 -K 1 | (4)
in the formula (4), delta K represents the variation of the bending resistance characterization parameter of the stainless steel tube, K 2 Represent the bending resistance characterization parameter after temperature adjustment, K 1 And the characteristic parameter of bending resistance before temperature adjustment is represented.
9. The stainless steel tube-based crushing resistance detection system according to claim 8, wherein the electronic control module determines whether the crushing resistance of the stainless steel tube is acceptable based on the variation, wherein,
and if the variation is smaller than a preset variation threshold, judging that the compression resistance of the stainless steel tube is qualified.
10. The stainless steel pipe-based pressure resistance detection system according to claim 1, wherein the electronic control module is further connected to an external display screen for displaying a determination result of the electronic control module.
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