CN106525958A - Spring maintenance method - Google Patents
Spring maintenance method Download PDFInfo
- Publication number
- CN106525958A CN106525958A CN201610930734.9A CN201610930734A CN106525958A CN 106525958 A CN106525958 A CN 106525958A CN 201610930734 A CN201610930734 A CN 201610930734A CN 106525958 A CN106525958 A CN 106525958A
- Authority
- CN
- China
- Prior art keywords
- spring
- flaw detection
- magnetic
- test piece
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
- G01N27/84—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields by applying magnetic powder or magnetic ink
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention discloses a spring maintenance method. The method comprises the steps of fluorescent magnetic suspension preparing, checking on a fluorescent magnetic suspension, adjustment on a magnetizing current and maintenance on a spring by means of adjusted magnetizing current parameters and the checked fluorescent magnetic suspension. The maintenance method can accurately judge whether cracks appear on the spring or not, and the safety is guaranteed.
Description
Technical field
The present invention relates to the repair method of spring, especially locomotive with one be, the repair method of secondary spring.
Background technology
When, at rolling stock passes through guideway irregularity or when wheel is vibrated and impacted to defect, coil spring can delay
And impact, decay vibration.To make rolling stock steadily safely run, it is necessary to strictly repair journey repair system reform embodiment by locomotive
Checked and overhauled, locomotive in longtime running, due to the defect that coil spring assembles improper or raw material produce under stress it is micro-
Crackle, and fatigue crack is expanded to, and these crackle naked eyes are difficult to recognize, so carrying out full surface to locomotive one, secondary spring
Flaw detection is to ensure that the important repair method of locomotive safety running.
The content of the invention
It is an object of the invention to provide a kind of repair method of spring, the repair method of the present invention can be accurately judged to bullet
Whether spring there is crackle, it is ensured that security.
To reach above-mentioned purpose, a kind of repair method of spring comprises the steps：
（1）Flaw detection prepares；
（1.1）Get out spring magnaflux, darkroom, test piece, fluorescentmagnetic particle(powder), water-based carrier fluid, water, pyriform sediment tube, black light
Lamp, white light illumination meter, uv radiation intensity meter, magnetometer；
（2）Fluorescence magnetic flaw detection ink is prepared；
（2.1）It is 1L according to Capacity Ratio by water-based carrier fluid and water in the magnetcisuspension liquid case:35-45L mixing carries out dilute to water-based carrier fluid
Release to form liquid mixture；
（2.2）According to the ratio of the fluorescentmagnetic particle(powder) for mixing 1g-3g in 1L liquid mixtures by load weighted fluorescentmagnetic particle(powder) and liquid
In liquid dispensing container, all wetting stirs into scattered paste shape to the 5%-7% of the total capacity of mixture, is subsequently poured in magnetcisuspension liquid case fully
Stir to form fluorescence magnetic flaw detection ink；
（3）Fluorescence magnetic flaw detection ink concentration determination；
（3.1）100mL fluorescence magnetic flaw detection inks are taken in magnetcisuspension liquid case and is positioned over pyriform sediment tube, staticly settled not less than after 30min
Read magnetic precipitation capacity be fluorescence Particle content, such as fluorescence Particle content in the range of 0.2～0.6mL/100mL,
Then meet maintenance to require, such as fluorescence Particle content does not meet maintenance outside 0.2～0.6mL/100mL scopes, then and requires, need
Again prepare fluorescence magnetic flaw detection ink；
（4）Flaw detection overall sensitivity test；
（4.1）Test piece is pasted：Described test piece is with+word groove；Test piece band+word grooved surface is closely connected with the spring surface of test
Test piece is clung on the spring surface of test by blend compounds band, and the test piece with+word groove should have a line and test
Axle of spring is parallel；
（4.2）Fluorescent Magnetic Flaw Detector is tested：With uv radiation intensity meter test with spring near carry out ultraviolet irradiation, it is ultraviolet
Line irradiation level is higher than 800 μ W/c, then meet spring maintenance and require that such as Fluorescent Magnetic Flaw Detector is less than 800 μ W/c, then do not meet
Spring maintenance is required；
（4.3）White light intensity is tested：The experiment spring for being pasted with test piece is put in darkroom, it is dark with white light illumination measurement amount
White light intensity near the spring of laboratory test, such as white light intensity are less than or equal to 20Lx, then meet spring maintenance and require, such as white light
Intensity is more than 20Lx, then do not meet spring maintenance and require；
（4.4）Magnetization inspection：The qualified fluorescence magnetic flaw detection ink of Jing concentration determinations is sprayed on the spring of test for being pasted with test piece,
Resultant magnetization carried out to the spring that the test for being pasted with test piece is used using spring magnaflux, circumferentially and longitudinally magnetization is electric for observation
Whether stream meets the requirement of magnetization specification, should otherwise adjust circumference or longitudinal magnetization electric current；
（4.5）Magnetic trace is analyzed：While the spring of test magnetizes, test piece magnetic particle indications situation is observed, test piece groove should show
Show clear, complete, otherwise do not meet the requirement of maintenance；
（5）Flaw detection pretreatment；
The dust and dirt of spring surface are removed, to spring Integral shot blasting depainting, it is ensured that spring surface non-scale, greasy dirt, rust
Erosion interference flaw detection；
（6）Flaw detection operation；
（6.1) defect-detecting equipment adopts spring magnaflux, during the gripping means grips spring of spring magnaflux, spring magnetic
Two yokes of powder defectoscope are contacted well with the both ends of the surface of spring, prevent spark phenomenon；
（6.2）Before magnetization, automatic spray is taken to spring integral surface by checking qualified fluorescence magnetic flaw detection ink；Connected using wet method
Continuous method, energization magnetizing time are 1～3s, magnetize 2～3 times again, every time 0.5～1.0s after stopping spray fluorescence magnetic flaw detection ink；
（6.3）Spring surface magnetic particle indications are observed by black light lamp, when defect magnetic trace is found in checking process, in spring subscript
Remember and defect magnetic trace position, and record position, direction and the size of defect magnetic trace in detail；
（6.4）Demagnetization：Spring being demagnetized, its demagnetization effectiveness being checked using magnetometer, remanent magnetism is less than 0.5mT to spring everywhere
（5Gs）；
（7）Flaw detection inspection of quality：Spring surface does not allow the presence of any defect magnetic trace, and otherwise spring is unqualified.
Further, described water-based carrier fluid is SY-40 type concentrated type carrier fluids.
Further, the pH value of water is 7～9.
Further, adhesive tape is in intersecting parallels firm pasting along test piece surrounding.
Further, circumferential magnetization electric current presses formula I=(8～10) D calculating, and in formula, I is circumferential magnetization electric current, and D is bullet
Spring central diameter, the unit of mean diameter of coil is mm；Longitudinal magnetization electric current I0By formula I0=(8～10) d is calculated, and in formula, d is spring steel
Material diameter, the unit of spring steel material diameter is mm.
Further, the spring for one be helical spring and two be helical spring.
Further, test piece is A1-15/50 type standard test pieces.
The invention has the beneficial effects as follows：In the present invention, by step（2）The fluorescence magnetic flaw detection ink for detecting is formulated for, is led to
Cross step（3）、（4）With（5）Fluorescence magnetic flaw detection ink is verified, while adjusting out optimal magnetizing current, above-mentioned steps is obtained
To fluorescence magnetic flaw detection ink use on spring after, and using the magnetizing current adjusted, then accurately can be judged by magnetic particle indications
Go out whether spring crackle occurs, it is ensured that the security of spring.
Description of the drawings
Fig. 1 pastes the schematic diagram on the spring of test for test piece.
Fig. 2 be using spring magnaflux to be pasted with test piece test with spring carry out resultant magnetization.
Fig. 3 is the schematic diagram clamped to spring using spring magnaflux.
Specific embodiment
The present invention will be described in further detail with reference to the accompanying drawings and detailed description.
Embodiment 1.
A kind of repair method of spring, comprises the steps：
（1）Flaw detection prepares.
（1.1）Be ready to spring magnaflux, darkroom, test piece, fluorescentmagnetic particle(powder), water-based carrier fluid, water, pyriform sediment tube,
Black light lamp, white light illumination meter, uv radiation intensity meter, magnetometer.In the present embodiment, spring magnaflux is set for existing
It is standby, will not be described here；As shown in figure 1, test piece 1 is with+word groove 11, test piece 1 is A1-15/50 type standard test pieces；Described
Water-based carrier fluid is SY-40 type concentrated type carrier fluids；The pH value of water is 7～9；White light illumination is calculated as ST-80C type white light illumination meters；It is purple
External irradiation degree is calculated as UV-A type uv radiation intensity meters.
（2）Fluorescence magnetic flaw detection ink is prepared.
（2.1）It is 1L according to Capacity Ratio by water-based carrier fluid and water in the magnetcisuspension liquid case:35L mixing carries out dilute to water-based carrier fluid
Release to form liquid mixture.
（2.2）According to the ratio of the fluorescentmagnetic particle(powder) for mixing 1g in 1L liquid mixtures by load weighted fluorescentmagnetic particle(powder) and liquid
In liquid dispensing container, all wetting stirs into scattered paste shape to the 5% of the total capacity of mixture, is subsequently poured in magnetcisuspension liquid case and is sufficiently stirred for
It is formed uniformly fluorescence magnetic flaw detection ink.Fluorescentmagnetic particle(powder) has been weighed according to the ratio for mixing 1g fluorescentmagnetic particle(powder)s in 1L liquid mixtures, so
The 5% of liquid mixture total capacity is taken out from liquid mixture afterwards all to moisten in liquid dispensing container with load weighted fluorescentmagnetic particle(powder)
It is wet to stir into scattered paste shape, finally pour into and stir to form fluorescence magnetic flaw detection ink in magnetcisuspension liquid case.
（3）Fluorescence magnetic flaw detection ink concentration determination.
（3.1）100mL fluorescence magnetic flaw detection inks are taken in magnetcisuspension liquid case and is positioned over pyriform sediment tube, staticly settled and be not less than
The precipitation capacity that magnetic is read after 30min is fluorescence Particle content, and such as fluorescence Particle content is in 0.2～0.6mL/100mL
In the range of, then meet maintenance and require, such as fluorescence Particle content does not meet maintenance outside 0.2～0.6mL/100mL scopes, then and wants
Ask, need to prepare again fluorescence magnetic flaw detection ink.
（4）Flaw detection overall sensitivity test.
（4.1）Test piece 1 is pasted：By the band of test piece 1+word grooved surface, closely connected blend compounds band 3 will with 2 surface of spring of test
Test piece 1 is clung on 2 surface of spring of test, and the test piece 1 with+word groove should have a line with 2 axle of spring tested
Line A is parallel；Wherein, adhesive tape 3 is in intersecting parallels firm pasting along 1 surrounding of test piece.
（4.2）Fluorescent Magnetic Flaw Detector is tested：With uv radiation intensity meter test with spring 2 near carry out ultraviolet photograph
Penetrate, Fluorescent Magnetic Flaw Detector is higher than 800 μ W/c, then meet spring maintenance and require that such as Fluorescent Magnetic Flaw Detector is less than 800 μ W/c,
Then do not meet spring maintenance to require.
（4.3）White light intensity is tested：The spring 2 for being pasted with the test of test piece 1 is put in darkroom, white light illumination is used
White light intensity near the spring of the dark laboratory test of measurement amount, such as white light intensity are less than or equal to 20Lx, then meeting spring maintenance will
Ask, such as white light intensity is more than 20Lx, then do not meet spring maintenance and require.
（4.4）Magnetization inspection：The qualified fluorescent magnetic of Jing concentration determinations is sprayed on the spring of test for being pasted with test piece 1
Suspension；As shown in Fig. 2 the spring 2 that the test for being pasted with test piece using spring magnaflux 4 pairs is used carries out resultant magnetization, sight
The requirement whether circumferentially and longitudinally magnetizing current meets magnetization specification is examined, circumference or longitudinal magnetization electric current should be otherwise adjusted；It is circumferential
The requirement of magnetizing current and longitudinal magnetization electric current is：Circumferential magnetization electric current presses formula I=(8～10) D calculating, and in formula, I is circumferential
Magnetizing current, D are mean diameter of coil, and the unit of mean diameter of coil is mm；Longitudinal magnetization electric current I0By formula I0=(8～10) d is calculated,
In formula, d is spring steel material diameter, and the unit of spring steel material diameter is mm.
（4.5）Magnetic trace is analyzed：While the spring 2 of test magnetizes, 1 magnetic particle indications situation of test piece is observed, test piece 1
It is clear, complete that+word groove should show, does not otherwise meet the requirement of maintenance.
（5）Flaw detection pretreatment.
The dust and dirt of spring surface are removed, to spring Integral shot blasting depainting, it is ensured that spring surface non-scale, oil
Dirty, corrosion interference flaw detection；In the present embodiment, spring includes primary spring and secondary spring.
（6）Flaw detection operation.
（6.1) defect-detecting equipment adopts spring magnaflux 4, as shown in figure 3, the clamping device of spring magnaflux 4
During 41 fastening spring 10, two yokes of spring magnaflux 4 are contacted well with the both ends of the surface of spring 10, prevent spark phenomenon.
（6.2）Before magnetization, automatic spray is taken to 10 integral surface of spring by checking qualified fluorescence magnetic flaw detection ink；Using
Wet method continuity method, energization magnetizing time are 1～3s, magnetize 2～3 times again after stopping spray fluorescence magnetic flaw detection ink, every time 0.5～
1.0s。
（6.3）10 surface magnetic particle indications of spring are observed by black light lamp, when defect magnetic trace is found in checking process, in bullet
Defect magnetic trace position is drawn with marker pen on spring, and records position, direction and the size of defect magnetic trace in detail.
（6.4）Demagnetization：Spring 10 being demagnetized, its demagnetization effectiveness being checked using magnetometer, remanent magnetism does not surpass spring everywhere
Cross 0.5mT（5Gs）.
（7）Flaw detection inspection of quality：Spring surface does not allow the presence of any defect magnetic trace, and otherwise spring is unqualified.
In the present invention, by step（2）The fluorescence magnetic flaw detection ink for detecting is formulated for, by step（3）、（4）With（5）It is right
Fluorescence magnetic flaw detection ink is verified, while adjusting out optimal magnetizing current, the fluorescence magnetic flaw detection ink that above-mentioned steps are obtained is used
After on spring, and using the magnetizing current adjusted, then can be accurately judged to whether spring crackle occurs by magnetic particle indications, really
Protect the security of spring.
Embodiment 2.
A kind of repair method of spring, comprises the steps：
（1）Flaw detection prepares.
（1.1）Be ready to spring magnaflux, darkroom, test piece, fluorescentmagnetic particle(powder), water-based carrier fluid, water, pyriform sediment tube,
Black light lamp, white light illumination meter, uv radiation intensity meter, magnetometer.In the present embodiment, spring magnaflux is set for existing
It is standby, will not be described here；As shown in figure 1, test piece 1 is with+word groove 11, test piece 1 is A1-15/50 type standard test pieces；Described
Water-based carrier fluid is SY-40 type concentrated type carrier fluids；The pH value of water is 7～9；White light illumination is calculated as ST-80C type white light illumination meters；It is purple
External irradiation degree is calculated as UV-A type uv radiation intensity meters.
（2）Fluorescence magnetic flaw detection ink is prepared.
（2.1）It is 1L according to Capacity Ratio by water-based carrier fluid and water in the magnetcisuspension liquid case:40L mixing carries out dilute to water-based carrier fluid
Release to form liquid mixture.
（2.2）According to the ratio of the fluorescentmagnetic particle(powder) for mixing 2g in 1L liquid mixtures by load weighted fluorescentmagnetic particle(powder) and liquid
In liquid dispensing container, all wetting stirs into scattered paste shape to the 6% of the total capacity of mixture, is subsequently poured in magnetcisuspension liquid case and is sufficiently stirred for
It is formed uniformly fluorescence magnetic flaw detection ink.Fluorescentmagnetic particle(powder) has been weighed according to the ratio for mixing 2g fluorescentmagnetic particle(powder)s in 1L liquid mixtures, so
The 6% of liquid mixture total capacity is taken out from liquid mixture afterwards all to moisten in liquid dispensing container with load weighted fluorescentmagnetic particle(powder)
It is wet to stir into scattered paste shape, finally pour into and stir to form fluorescence magnetic flaw detection ink in magnetcisuspension liquid case.
（3）Fluorescence magnetic flaw detection ink concentration determination.
（3.1）100mL fluorescence magnetic flaw detection inks are taken in magnetcisuspension liquid case and is positioned over pyriform sediment tube, staticly settled and be not less than
The precipitation capacity that magnetic is read after 30min is fluorescence Particle content, and such as fluorescence Particle content is in 0.2～0.6mL/100mL
In the range of, then meet maintenance and require, such as fluorescence Particle content does not meet maintenance outside 0.2～0.6mL/100mL scopes, then and wants
Ask, need to prepare again fluorescence magnetic flaw detection ink.
（4）Flaw detection overall sensitivity test.
（4.1）Test piece 1 is pasted：By the band of test piece 1+word grooved surface, closely connected blend compounds band 3 will with 2 surface of spring of test
Test piece 1 is clung on 2 surface of spring of test, and the test piece 1 with+word groove should have a line with 2 axle of spring tested
Line A is parallel；Wherein, adhesive tape 3 is in intersecting parallels firm pasting along 1 surrounding of test piece.
（4.2）Fluorescent Magnetic Flaw Detector is tested：With uv radiation intensity meter test with spring 2 near carry out ultraviolet photograph
Penetrate, Fluorescent Magnetic Flaw Detector is higher than 800 μ W/c, then meet spring maintenance and require that such as Fluorescent Magnetic Flaw Detector is less than 800 μ W/c,
Then do not meet spring maintenance to require.
（4.3）White light intensity is tested：The spring 2 for being pasted with the test of test piece 1 is put in darkroom, white light illumination is used
White light intensity near the spring of the dark laboratory test of measurement amount, such as white light intensity are less than or equal to 20Lx, then meeting spring maintenance will
Ask, such as white light intensity is more than 20Lx, then do not meet spring maintenance and require.
（4.4）Magnetization inspection：The qualified fluorescent magnetic of Jing concentration determinations is sprayed on the spring of test for being pasted with test piece 1
Suspension；As shown in Fig. 2 the spring 2 that the test for being pasted with test piece using spring magnaflux 4 pairs is used carries out resultant magnetization, sight
The requirement whether circumferentially and longitudinally magnetizing current meets magnetization specification is examined, circumference or longitudinal magnetization electric current should be otherwise adjusted；It is circumferential
The requirement of magnetizing current and longitudinal magnetization electric current is：Circumferential magnetization electric current presses formula I=(8～10) D calculating, and in formula, I is circumferential
Magnetizing current, D are mean diameter of coil, and the unit of mean diameter of coil is mm；Longitudinal magnetization electric current I0By formula I0=(8～10) d is calculated,
In formula, d is spring steel material diameter, and the unit of spring steel material diameter is mm.
（4.5）Magnetic trace is analyzed：While the spring 2 of test magnetizes, 1 magnetic particle indications situation of test piece is observed, test piece 1
It is clear, complete that+word groove should show, does not otherwise meet the requirement of maintenance.
（5）Flaw detection pretreatment.
The dust and dirt of spring surface are removed, to spring Integral shot blasting depainting, it is ensured that spring surface non-scale, oil
Dirty, corrosion interference flaw detection；In the present embodiment, spring includes primary spring and secondary spring.
（6）Flaw detection operation.
（6.1) defect-detecting equipment adopts spring magnaflux 4, as shown in figure 3, the clamping device of spring magnaflux 4
During 41 fastening spring 10, two yokes of spring magnaflux 4 are contacted well with the both ends of the surface of spring 10, prevent spark phenomenon.
（6.2）Before magnetization, automatic spray is taken to 10 integral surface of spring by checking qualified fluorescence magnetic flaw detection ink；Using
Wet method continuity method, energization magnetizing time are 1～3s, magnetize 2～3 times again after stopping spray fluorescence magnetic flaw detection ink, every time 0.5～
1.0s。
（6.3）10 surface magnetic particle indications of spring are observed by black light lamp, when defect magnetic trace is found in checking process, in bullet
Defect magnetic trace position is drawn with marker pen on spring, and records position, direction and the size of defect magnetic trace in detail.
（6.4）Demagnetization：Spring 10 being demagnetized, its demagnetization effectiveness being checked using magnetometer, remanent magnetism does not surpass spring everywhere
Cross 0.5mT（5Gs）.
（7）Flaw detection inspection of quality：Spring surface does not allow the presence of any defect magnetic trace, and otherwise spring is unqualified.
In the present invention, by step（2）The fluorescence magnetic flaw detection ink for detecting is formulated for, by step（3）、（4）With（5）It is right
Fluorescence magnetic flaw detection ink is verified, while adjusting out optimal magnetizing current, the fluorescence magnetic flaw detection ink that above-mentioned steps are obtained is used
After on spring, and using the magnetizing current adjusted, then can be accurately judged to whether spring crackle occurs by magnetic particle indications, really
Protect the security of spring.
Embodiment 3.
A kind of repair method of spring, comprises the steps：
（1）Flaw detection prepares.
（1.1）Be ready to spring magnaflux, darkroom, test piece, fluorescentmagnetic particle(powder), water-based carrier fluid, water, pyriform sediment tube,
Black light lamp, white light illumination meter, uv radiation intensity meter, magnetometer.In the present embodiment, spring magnaflux is set for existing
It is standby, will not be described here；As shown in figure 1, test piece 1 is with+word groove 11, test piece 1 is A1-15/50 type standard test pieces；Described
Water-based carrier fluid is SY-40 type concentrated type carrier fluids；The pH value of water is 7～9；White light illumination is calculated as ST-80C type white light illumination meters；It is purple
External irradiation degree is calculated as UV-A type uv radiation intensity meters.
（2）Fluorescence magnetic flaw detection ink is prepared.
（2.1）It is 1L according to Capacity Ratio by water-based carrier fluid and water in the magnetcisuspension liquid case:45L mixing is carried out to water-based carrier fluid
Dilution forms liquid mixture.
（2.2）According to the ratio of the fluorescentmagnetic particle(powder) for mixing 3g in 1L liquid mixtures by load weighted fluorescentmagnetic particle(powder) and liquid
In liquid dispensing container, all wetting stirs into scattered paste shape to the 7% of the total capacity of mixture, is subsequently poured in magnetcisuspension liquid case and is sufficiently stirred for
It is formed uniformly fluorescence magnetic flaw detection ink.Fluorescentmagnetic particle(powder) has been weighed according to the ratio for mixing 3g fluorescentmagnetic particle(powder)s in 1L liquid mixtures, so
The 7% of liquid mixture total capacity is taken out from liquid mixture afterwards all to moisten in liquid dispensing container with load weighted fluorescentmagnetic particle(powder)
It is wet to stir into scattered paste shape, finally pour into and stir to form fluorescence magnetic flaw detection ink in magnetcisuspension liquid case.
（3）Fluorescence magnetic flaw detection ink concentration determination.
（3.1）100mL fluorescence magnetic flaw detection inks are taken in magnetcisuspension liquid case and is positioned over pyriform sediment tube, staticly settled and be not less than
The precipitation capacity that magnetic is read after 30min is fluorescence Particle content, and such as fluorescence Particle content is in 0.2～0.6mL/100mL
In the range of, then meet maintenance and require, such as fluorescence Particle content does not meet maintenance outside 0.2～0.6mL/100mL scopes, then and wants
Ask, need to prepare again fluorescence magnetic flaw detection ink.
（4）Flaw detection overall sensitivity test.
（4.1）Test piece 1 is pasted：By the band of test piece 1+word grooved surface, closely connected blend compounds band 3 will with 2 surface of spring of test
Test piece 1 is clung on 2 surface of spring of test, and the test piece 1 with+word groove should have a line with 2 axle of spring tested
Line A is parallel；Wherein, adhesive tape 3 is in intersecting parallels firm pasting along 1 surrounding of test piece.
（4.2）Fluorescent Magnetic Flaw Detector is tested：With uv radiation intensity meter test with spring 2 near carry out ultraviolet photograph
Penetrate, Fluorescent Magnetic Flaw Detector is higher than 800 μ W/c, then meet spring maintenance and require that such as Fluorescent Magnetic Flaw Detector is less than 800 μ W/c,
Then do not meet spring maintenance to require.
（4.3）White light intensity is tested：The spring 2 for being pasted with the test of test piece 1 is put in darkroom, white light illumination is used
White light intensity near the spring of the dark laboratory test of measurement amount, such as white light intensity are less than or equal to 20Lx, then meeting spring maintenance will
Ask, such as white light intensity is more than 20Lx, then do not meet spring maintenance and require.
（4.4）Magnetization inspection：The qualified fluorescent magnetic of Jing concentration determinations is sprayed on the spring of test for being pasted with test piece 1
Suspension；As shown in Fig. 2 the spring 2 that the test for being pasted with test piece using spring magnaflux 4 pairs is used carries out resultant magnetization, sight
The requirement whether circumferentially and longitudinally magnetizing current meets magnetization specification is examined, circumference or longitudinal magnetization electric current should be otherwise adjusted；It is circumferential
The requirement of magnetizing current and longitudinal magnetization electric current is：Circumferential magnetization electric current presses formula I=(8～10) D calculating, and in formula, I is circumferential
Magnetizing current, D are mean diameter of coil, and the unit of mean diameter of coil is mm；Longitudinal magnetization electric current I0By formula I0=(8～10) d is calculated,
In formula, d is spring steel material diameter, and the unit of spring steel material diameter is mm.
（4.5）Magnetic trace is analyzed：While the spring 2 of test magnetizes, 1 magnetic particle indications situation of test piece is observed, test piece 1
It is clear, complete that+word groove should show, does not otherwise meet the requirement of maintenance.
（5）Flaw detection pretreatment.
The dust and dirt of spring surface are removed, to spring Integral shot blasting depainting, it is ensured that spring surface non-scale, oil
Dirty, corrosion interference flaw detection；In the present embodiment, spring includes primary spring and secondary spring.
（6）Flaw detection operation.
（6.1) defect-detecting equipment adopts spring magnaflux 4, as shown in figure 3, the clamping device of spring magnaflux 4
During 41 fastening spring 10, two yokes of spring magnaflux 4 are contacted well with the both ends of the surface of spring 10, prevent spark phenomenon.
（6.2）Before magnetization, automatic spray is taken to 10 integral surface of spring by checking qualified fluorescence magnetic flaw detection ink；Using
Wet method continuity method, energization magnetizing time are 1～3s, magnetize 2～3 times again after stopping spray fluorescence magnetic flaw detection ink, every time 0.5～
1.0s。
（6.3）10 surface magnetic particle indications of spring are observed by black light lamp, when defect magnetic trace is found in checking process, in bullet
Defect magnetic trace position is drawn with marker pen on spring, and records position, direction and the size of defect magnetic trace in detail.
（6.4）Demagnetization：Spring 10 being demagnetized, its demagnetization effectiveness being checked using magnetometer, remanent magnetism does not surpass spring everywhere
Cross 0.5mT（5Gs）.
（7）Flaw detection inspection of quality：Spring surface does not allow the presence of any defect magnetic trace, and otherwise spring is unqualified.
In the present invention, by step（2）The fluorescence magnetic flaw detection ink for detecting is formulated for, by step（3）、（4）With（5）It is right
Fluorescence magnetic flaw detection ink is verified, while adjusting out optimal magnetizing current, the fluorescence magnetic flaw detection ink that above-mentioned steps are obtained is used
After on spring, and using the magnetizing current adjusted, then can be accurately judged to whether spring crackle occurs by magnetic particle indications, really
Protect the security of spring.
Claims (7)
1. a kind of repair method of spring, it is characterised in that comprise the steps：
（1）Flaw detection prepares；
（1.1）Get out spring magnaflux, darkroom, test piece, fluorescentmagnetic particle(powder), water-based carrier fluid, water, pyriform sediment tube, black light
Lamp, white light illumination meter, uv radiation intensity meter, magnetometer；
（2）Fluorescence magnetic flaw detection ink is prepared；
（2.1）It is 1L according to Capacity Ratio by water-based carrier fluid and water in the magnetcisuspension liquid case:35-45L mixing carries out dilute to water-based carrier fluid
Release to form liquid mixture；
（2.2）According to the ratio of the fluorescentmagnetic particle(powder) for mixing 1g-3g in 1L liquid mixtures by load weighted fluorescentmagnetic particle(powder) and liquid
In liquid dispensing container, all wetting stirs into scattered paste shape to the 5%-7% of the total capacity of mixture, is subsequently poured in magnetcisuspension liquid case fully
Stir to form fluorescence magnetic flaw detection ink；
（3）Fluorescence magnetic flaw detection ink concentration determination；
（3.1）100mL fluorescent magnetic magnetic flaw detection inks are taken in magnetcisuspension liquid case and is positioned over pyriform sediment tube, staticly settled not less than 30min
The precipitation capacity for reading magnetic afterwards is fluorescence Particle content, and such as fluorescence Particle content is in 0.2～0.6mL/100mL scopes
It is interior, then meet maintenance and require, such as fluorescence Particle content does not meet maintenance outside 0.2～0.6mL/100mL scopes, then and requires,
Need to prepare again fluorescence magnetic flaw detection ink；
（4）Flaw detection overall sensitivity test；
（4.1）Test piece is pasted：Described test piece is with+word groove；Test piece band+word grooved surface is closely connected with the spring surface of test
Test piece is clung on the spring surface of test by blend compounds band, and the test piece with+word groove should have a line and test
Axle of spring is parallel；
（4.2）Fluorescent Magnetic Flaw Detector is tested：With uv radiation intensity meter test with spring near carry out ultraviolet irradiation, it is ultraviolet
Line irradiation level is higher than 800 μ W/c, then meet spring maintenance and require that such as Fluorescent Magnetic Flaw Detector is less than 800 μ W/c, then do not meet
Spring maintenance is required；
（4.3）White light intensity is tested：The experiment spring for being pasted with test piece is put in darkroom, it is dark with white light illumination measurement amount
White light intensity near the spring of laboratory test, such as white light intensity are less than or equal to 20Lx, then meet spring maintenance and require, such as white light
Intensity is more than 20Lx, then do not meet spring maintenance and require；
（4.4）Magnetization inspection：The qualified fluorescence magnetic flaw detection ink of Jing concentration determinations is sprayed on the spring of test for being pasted with test piece,
Resultant magnetization carried out to the spring that the test for being pasted with test piece is used using spring magnaflux, circumferentially and longitudinally magnetization is electric for observation
Whether stream meets the requirement of magnetization specification, should otherwise adjust circumference or longitudinal magnetization electric current；
（4.5）Magnetic trace is analyzed：While the spring of test magnetizes, test piece magnetic particle indications situation is observed, test piece groove should show
Show clear, complete, otherwise do not meet the requirement of maintenance；
（5）Flaw detection pretreatment；
The dust and dirt of spring surface are removed, to spring Integral shot blasting depainting, it is ensured that spring surface non-scale, greasy dirt, rust
Erosion interference flaw detection；
（6）Flaw detection operation；
（6.1) defect-detecting equipment adopts spring magnaflux, during the gripping means grips spring of spring magnaflux, spring magnetic
Two yokes of powder defectoscope are contacted well with the both ends of the surface of spring, prevent spark phenomenon；
（6.2）Before magnetization, automatic spray is taken to spring integral surface by checking qualified fluorescence magnetic flaw detection ink；Connected using wet method
Continuous method, energization magnetizing time are 1～3s, magnetize 2～3 times again, every time 0.5～1.0s after stopping spray fluorescence magnetic flaw detection ink；
（6.3）Spring surface magnetic particle indications are observed by black light lamp, when defect magnetic trace is found in checking process, in spring subscript
Remember and defect magnetic trace position, and record position, direction and the size of defect magnetic trace in detail；
（6.4）Demagnetization：Spring being demagnetized, its demagnetization effectiveness being checked using magnetometer, remanent magnetism is less than 0.5mT to spring everywhere
（5Gs）；
（7）Flaw detection inspection of quality：Spring surface does not allow the presence of any defect magnetic trace, and otherwise spring is unqualified.
2. the repair method of spring according to claim 1, it is characterised in that：Described water-based carrier fluid is that SY-40 types are dense
Miniature carrier fluid.
3. the repair method of spring according to claim 1, it is characterised in that：The pH value of water is 7～9.
4. the repair method of spring according to claim 1, it is characterised in that：Adhesive tape is pasted in intersecting parallels along test piece surrounding
Firmly.
5. the repair method of spring according to claim 1, it is characterised in that：Circumferential magnetization electric current press formula I=(8～
10) D is calculated, and in formula, I is circumferential magnetization electric current, and D is mean diameter of coil, and the unit of mean diameter of coil is mm；Longitudinal magnetization electric current I0
By formula I0=(8～10) d is calculated, and in formula, d is spring steel material diameter, and the unit of spring steel material diameter is mm.
6. spring repair method according to claim 1, it is characterised in that：The spring is that helical spring and two is for one
Helical spring.
7. spring repair method according to claim 1, it is characterised in that：Test piece is A1-15/50 type standard test pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610930734.9A CN106525958A (en) | 2016-10-31 | 2016-10-31 | Spring maintenance method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610930734.9A CN106525958A (en) | 2016-10-31 | 2016-10-31 | Spring maintenance method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106525958A true CN106525958A (en) | 2017-03-22 |
Family
ID=58292967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610930734.9A Pending CN106525958A (en) | 2016-10-31 | 2016-10-31 | Spring maintenance method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106525958A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856234A (en) * | 2018-12-19 | 2019-06-07 | 襄阳新东特锻造有限公司 | A kind of magnetic powder inspection device and magnetic powder inspection method |
| CN109884173A (en) * | 2019-03-12 | 2019-06-14 | 大成（常熟）机械有限公司 | A kind of magnetic powder detection method connecting class product |
| CN112834608A (en) * | 2021-01-06 | 2021-05-25 | 广东核电合营有限公司 | Hole wall defect detection method for nuclear power station |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012108023A (en) * | 2010-11-18 | 2012-06-07 | Marktec Corp | Method and apparatus for measuring each component concentration in suspension to be used for wet fluorescent magnetic particle flaw detection test |
| CN103018322A (en) * | 2012-12-11 | 2013-04-03 | 南车长江车辆有限公司 | Flaw detection device of buffer spring |
| CN103076389A (en) * | 2012-12-25 | 2013-05-01 | 河北省电力公司电力科学研究院 | Magnetic powder detection method for large cast valve |
| CN204666558U (en) * | 2015-02-28 | 2015-09-23 | 江苏赛福探伤设备制造有限公司 | A kind of spring fluorescent magnetic particle inspection machine |
| CN105628787A (en) * | 2015-12-30 | 2016-06-01 | 瓦房店轴承集团有限责任公司 | Nondestructive detection method for wind power yawing and pitch-variable bearing |
-
2016
- 2016-10-31 CN CN201610930734.9A patent/CN106525958A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012108023A (en) * | 2010-11-18 | 2012-06-07 | Marktec Corp | Method and apparatus for measuring each component concentration in suspension to be used for wet fluorescent magnetic particle flaw detection test |
| CN103018322A (en) * | 2012-12-11 | 2013-04-03 | 南车长江车辆有限公司 | Flaw detection device of buffer spring |
| CN103076389A (en) * | 2012-12-25 | 2013-05-01 | 河北省电力公司电力科学研究院 | Magnetic powder detection method for large cast valve |
| CN204666558U (en) * | 2015-02-28 | 2015-09-23 | 江苏赛福探伤设备制造有限公司 | A kind of spring fluorescent magnetic particle inspection machine |
| CN105628787A (en) * | 2015-12-30 | 2016-06-01 | 瓦房店轴承集团有限责任公司 | Nondestructive detection method for wind power yawing and pitch-variable bearing |
Non-Patent Citations (2)
| Title |
|---|
| 国防科技工业无损检测人员资格鉴定与认证培训教材编审委员: "《磁粉检测》", 30 June 2004 * |
| 杨田 等: "车转向架弹簧的磁粉探伤", 《无损检测》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856234A (en) * | 2018-12-19 | 2019-06-07 | 襄阳新东特锻造有限公司 | A kind of magnetic powder inspection device and magnetic powder inspection method |
| CN109856234B (en) * | 2018-12-19 | 2023-01-17 | 襄阳新东特锻造有限公司 | Magnetic powder flaw detection device and magnetic powder flaw detection method |
| CN109884173A (en) * | 2019-03-12 | 2019-06-14 | 大成（常熟）机械有限公司 | A kind of magnetic powder detection method connecting class product |
| CN112834608A (en) * | 2021-01-06 | 2021-05-25 | 广东核电合营有限公司 | Hole wall defect detection method for nuclear power station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106525958A (en) | Spring maintenance method | |
| CN103901003A (en) | Method for detecting and monitoring cracks of mechanical parts by utilizing fluorescent quantum dots | |
| CN104406943B (en) | Pretreatment method for liquid sample in laser-induced breakdown spectrum detection technology | |
| CN203929681U (en) | A kind of superhigh precision X-fluorescence sulfur detector | |
| JP2009075098A (en) | Apparatus and method for measuring magnetic powder concentration | |
| CN202974870U (en) | Oil content analyzer in on-line water by ultraviolet fluorescence method | |
| CN110361444B (en) | Carrier type pulse eddy current detection method and device | |
| CN102788839B (en) | Magnetic or magnetic suspension display capability tester | |
| Kuznetsova et al. | How feasible is direct determination of rare earth elements in seawater by ICP-MS? | |
| CA1167748A (en) | Method and composition for inspecting steel billets with magnetic particles | |
| CN105823822B (en) | Magnetic flaw detection ink usability evaluation method for magnetic powder inspection non-destructive testing | |
| CN203455309U (en) | Magnetic suspension concentration measuring device for magnetic powder inspection | |
| CN109324034A (en) | Rolling bearing defect detecting device based on Oil Spectral Analysis and Magnetic Flux Leakage Inspecting | |
| Amend | In-situ analyses to characterize the properties and metallurgical attributes of in-service piping | |
| CN101281114A (en) | Soaking color transferring method for evaluating magnesium, aluminum and alloy corrosion resistance | |
| CN206146876U (en) | Quick detection device of boats and ships feed water total hardness | |
| Stephan et al. | Analysis of iron nanoparticles in organic solvents used in the semiconductor industry using single particle ICP-MS in reaction mode | |
| CN109060947A (en) | The detection method of steel rail defect surface angle based on leakage magnetic detection device | |
| DE102004037623A1 (en) | Apparatus and method for the spectroscopic determination of carbon | |
| CN216350490U (en) | Test block for magnetic particle testing longitudinal magnetization system performance inspection | |
| EP2703830A3 (en) | Device and method for qualitative determination of the operational state of an object to be tested | |
| CN106872915B (en) | Particle content monitoring method during flaw detection | |
| JPS61266943A (en) | Automatic flaw detecting and sorting method for fluorescent magnetic powder flaw inspection of cast parts | |
| Bakunov et al. | A Set for Magnetic Fluorescent-Penetrant Inspection. | |
| JPS62277553A (en) | Measuring method for magnetic powder concentration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |