CN109978818A - A kind of appraisal procedure for poster surface yellow mud wash result - Google Patents
A kind of appraisal procedure for poster surface yellow mud wash result Download PDFInfo
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- CN109978818A CN109978818A CN201811628482.XA CN201811628482A CN109978818A CN 109978818 A CN109978818 A CN 109978818A CN 201811628482 A CN201811628482 A CN 201811628482A CN 109978818 A CN109978818 A CN 109978818A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/90—Determination of colour characteristics
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Abstract
A kind of appraisal procedure for poster surface yellow mud wash result belongs to poster surface clean assessment technique field.Data are analyzed according to the exploration and test data of a large amount of science in this laboratory, FIO (Five In One) method is proposed to assess the effect and its side effect of cleaning pollutant, wherein pollutant residual method is for assessing cleaning effect, and pH value method, color difference analysis method, wear area are than analytic approach, firmness change rate analytic approach for assessing cleaning side effect.FIO method can be comprehensive by five kinds of appraisal procedures, comprehensively judges wash result with this science.
Description
Technical field
The invention belongs to poster surface clean assessment technique fields, and in particular to one kind is for poster surface yellow mud cleaning knot
The appraisal procedure of fruit.
Background technique
Cleaning technique currently used for historical relic is relatively mature, such as adsorption desalination technology, chemical cleaning technique, steam spray
Penetrate cleaning technique, particle spraying cleaning technique, laser cleaning technique, ultrasonic cleaning technology etc..But the assessment to wash result
Unified standard is also lacked, mostly based on direct observational method, rule of thumb judges wash result, different people is to same primary cleaning
As a result it may obtain different conclusions, therefore the subjectivity of direct observational method is larger, lack scientific.In addition to cultural artifact surface
The assessment of wash result also occur surface color measurement, hardness and strength detection etc. respectively, but the judge of these methods
Excessively unilateral, the superiority and inferiority of single value cannot comprehensively judge wash result.
According to " Chinese cultural relics paleovolcanic structure criterion ", the Conservation and Renovation of cultural relics and historic sites need meet " not changing historical relic original state " and
The principle of " minimum human intervention ", the i.e. cleaning of cultural artifact surface cannot generate damage to historical relic, therefore clean and tie to historical relic
Fruit assessment is particularly significant, should reach certain cleaning effect, while being unable to overclean again, cannot generate to historical relic ontology broken
It is bad.
Summary of the invention
The present invention analyzes data, proposes FIO according to the exploration and test data of a large amount of science in this laboratory
(Five In One) method cleans the effect and its side effect of pollutant to assess, and wherein pollutant residual method is for assessing cleaning
Effect, pH value method, color difference analysis method, wear area are than analytic approach, firmness change rate analytic approach for assessing cleaning side effect.
FIO method can be comprehensive by five kinds of appraisal procedures, comprehensively judges wash result with this science.
A kind of appraisal procedure for poster surface yellow mud wash result, which is characterized in that specific implementation step is as follows:
(1) wash result is assessed respectively using five kinds of methods, according to corresponding testing result respectively by five kinds of wash results
Evaluation: pollutant residual, pH value, color difference analysis, surface abrasion area ratio, surface hardness analysis are classified as fabulous, preferable, conjunction respectively
It is lattice, poor, very poor；
It is specific as follows:
(1) pollutant remains method
In order to meet the minimum of interference principle of historical relic's protection, pollutant cleaning should use the cleaning agent of low concentration as far as possible,
To visually observe no dirt and historical relic ontology is not damaged as clean endpoint, cleaning is completed in the shortest possible time.If
Cultural artifact surface, which still remains pollutant and continues cleaning, can damage historical relic, then should stop cleaning, retain pollutant.Therefore, to dirt
The analysis for contaminating object residual rate is most important to wash result assessment.
All the time, for the cleaning of cultural artifact surface pollutant based on ocular examination, but this method by it is artificial because
Element is affected.The influence of human factor can be greatly lowered in the pollutant residual method that the invention patent proposes.Poster is come
It says, pollutant the most serious is yellow mud, and the cleaning effect of poster can be assessed with the method.
Pollutant residual rate refers to the area ratio for still having the remaining region of pollutant to account for cleaning area.Pollutant remains method
Specific steps are as follows:
1. first delimiting the region for needing to clean, the region then cleaned to needs is cleaned, the region that needs are cleaned
It is taken pictures with the region after the completion of cleaning with digital camera.
2. cleaning is completed rear surface using Photoshop software and still remains pollution by the photo after the completion of observation cleaning
The region of object with black line iris out come.
3. being calculated black line using Photoshop software and irised out region to account for the area ratio of cleaning area is that pollutant remains
Rate.
Pollutant residual rate and the corresponding relationship of wash result are as shown in table 1.
The corresponding relationship of table 1 pollutant residual rate and wash result
(2) pH value method
Acid or alkaline cleaner may cause a degree of destruction to historical relic, therefore it is required that historical relic cleaning agent to the greatest extent may be used
Can be close to neutrality, the assessment for causing cultural artifact surface acid-base property to change cleaning agent is particularly significant.After the completion of cleaning, with poster surface
The side effect of the pH change rate assessment wash result of untainted region and cleaning rear region.Specific steps are as follows:
1. according to SN/T 2302.1-2009 surface pH value measuring method using pH meter examine cleaning complete front and back poster and
The pH value of its carrier surface, operating procedure are as follows: suitable deionized water is added dropwise to tested surface with dropper, moistens tested surface sufficiently
It is wet；Flat tip electrode is perpendicularly oriented to tested surface, imposing certain pressure contacts flat tip electrode closely with wetted part；Simultaneously
Press manual time-keeping, certain time interval (180s) read test value after pH value tends towards stability；The pH value for choosing 5 points is asked
Surface pH value of the average value as cleaning front and back.
2. measuring the pH value P in the uncontaminated region in poster surface1With the pH value P after cleaning2, cleaning front and back is calculated according to formula 1
PH value change rate ψ, according to table 2 judge wash result.
The corresponding relationship of table 2pH value change rate ψ and wash result grade
(3) color difference analysis method
The consistent degree of historical relic cleaning area appearance color and uncontaminated region appearance color is also one after the completion of cleaning
Highly important index.Appearance color index after assessing cleaning using color difference analysis method.
Regulation according to GB/T 1766-2008 in relation to color difference, using general colour difference meter measure uncontaminated region original material with
Clean rear region material chromatic value.L value represents brightness, and value is from 0 (black)~100 (white), and+a indicates red, and-a is indicated
Green ,+b indicate yellow, and-b indicates blue.It can analyze whether detected material has occurred discoloration, colour fading now by chromatic value size
As and its degree.After two kinds of colors use L, a, b to demarcate respectively, total color difference Δ E=[(L1-L2)2+(a1-a2)2+(b1-b2)2]1/2,
NBS=0.92 × Δ E (wherein L1、a1、b1Refer to L, a, b value of uncontaminated region original material；L2、a2、b2Refer to cleaning rear region
L, a, b value of material).
Uncontaminated region is calculated by the calculation formula of total color difference and cleans the value of chromatism of rear region, is judged clearly according to table 3
Wash result.
The corresponding relationship of table 3 value of chromatism and wash result
| Δ E value of chromatism | NBS value of chromatism | Wash result |
| 0≤Δ E < 0.54 | 0≤Δ E < 0.5 | It is fabulous |
| 0.54≤Δ E < 3.26 | 0.5≤Δ E < 3.0 | Preferably |
| 3.26≤Δ E < 6.52 | 3.0≤Δ E < 6.0 | It is qualified |
| 6.52≤Δ E < 13.04 | 6.0≤Δ E < 12.0 | It is poor |
| ΔE≥13.04 | NBS≥12.0 | It is very poor |
(4) surface abrasion area ratio
Cleaning degree of injury caused by cultural artifact surface is assessed using surface abrasion area ratio.Surface abrasion area ratio is
Refer to that the cleaning frayed region of rear surface accounts for the area ratio of cleaning area.Since physical cleaning and chemical cleaning may be to historical relic tables
Face generates certain micro- damage, and this micro- damage naked eyes are difficult to observe, this just needs to be observed by microscope.It is specific real
Apply that steps are as follows:
It takes pictures 1. treating cleaning area using videomicroscopy and amplifying 200 times, this region is amplified again after the completion of cleaning
200 times are taken pictures.
2. cleaning is completed rear surface using Photoshop software and worn by the photo before comparison cleaning and after cleaning
Region with black line iris out come.
3. accounting for the percentage of the photo gross area using the area that Photoshop software calculating black line irises out region is surface
Abrasion.
The corresponding relationship of surface abrasion rate and wash result is as shown in table 4.Only visually observe after the completion of cleaning less than table
Surface wear could use the method, if naked eyes can observe directly surface abrasion, this Indexs measure result is considered as very poor.
The corresponding relationship of table 4 surface abrasion rate and wash result
(5) surface hardness analytic approach
Influence using the assessment cleaning of surface hardness analytic approach to historical relic mechanical property.
Leeb Hardness Tester is to impact specimen surface under certain test force effect with the impact body with certain mass, is surveyed
Stroke body is away from the impact velocity and rebound speed at specimen surface 1mm, calculation formula are as follows: HL=1000* (VB/VA), in formula:
HL-lee ' hardness symbol；VA-bulb impact velocity, m/s；VB-bulb ball rebound velocity, m/s.Reference standard " JB/T
9378-2001 Leeb Hardness Tester " the intact region of poster and cleaning rear region are detected, lee ' hardness value can be used for commenting
Estimate the surface texture of material.
Test need to select 10 test points to obtain 10 data, finally calculate average value and obtain the lee ' hardness of test object
Value.
Measure formula hardness number H in the intact region of poster1With formula hardness number H in cleaning rear region2, according to formula 2
Gauging surface firmness change rate ω judges wash result according to table 5.
The corresponding relationship of table 5 surface hardness change rate ω and wash result grade
(2) comprehensive assessment wash result, specific implementation step are as follows:
(1) above-mentioned five kinds of detection methods are utilized respectively to detect wash result, record the wash result of every kind of method:
It is fabulous, preferable, qualified, poor, very poor.
(2) FIO figure is drawn, as shown in left in Figure 2.5 side shape structures are drawn, 5 tops respectively correspond pollutant residual
Method, pH value method, color difference analysis method, surface abrasion Area Ratio Method, surface hardness analytic approach, take turns doing outward from pentagonal center
The small pentagonal configuration of four similar nestings parallel with pentagonal configuration, five points on five lines from outer to inner respectively correspond
It is fabulous, preferable, qualified, poor, very poor；
(3) corresponding vertex is found out according to the wash result of every kind of detection method respectively, find out five vertex are connected
It picks up and, the new pentagon of formation, inside is indicated with dash area；As shown in Fig. 2 right figure, the cleaning knot of five kinds of indexs in figure
Fruit respectively correspond pH value method preferably, method is poor for pollutant residual, color difference analysis method preferably, surface abrasion rate analytic approach it is qualified, hard
It is qualified to spend change rate analytic approach, the direct effect of every kind of method can be intuitively found out from figure；
(4) according to the correlation of 5 kinds of appraisal procedures and cleaning effect, the weight factor of parameter is determined using 0-4 point system
Q；0-4 point system is to widen the distance for comparing marking when each index of progress compares one by one, i.e., will weigh using rule
Want degree be dissolved into important ratio relatively in.It is important to make 4 scores if the importance of two elements differs greatly, it is unessential
Make 0 score；If the importance difference of two elements be not it is very big, it is important to make 3 scores, it is unessential to make 1 score；If two indices
The basic indifference of importance, make 2 scores respectively；Comparison score summation is necessarily equal to 4 points two-by-two；Then it is calculated according to cumulative score
Weight.
Specific as shown in table 6 through the calculating of 0-4 point system matrix, the corresponding point value of cleaning effect is as shown in table 7.
Each appraisal procedure 0-4 point system weight calculation table of table 6
7 wash result of table and corresponding point value
| Number i | 1 | 2 | 3 | 4 | 5 |
| Wash result | It is fabulous | Preferably | It is qualified | It is poor | It is very poor |
| Point value Pi | 1 | 0.8 | 0.6 | 0.4 | 0.2 |
Each index is calculated according to formula 3 using weighted mean method finally, obtains wash result comprehensive assessment value
W.Comprehensive wash result is obtained according to the corresponding relationship of table 8.
In formula, W-wash result comprehensive assessment value, QiThe weighted value of-items appraisal procedure, Pi- wash result grade pair
The point value answered.
The corresponding relationship of 8 comprehensive assessment value W of table and comprehensive wash result
Compared with existing wash result appraisal procedure, this method is had the advantage that
(1) for the wash result of poster respectively from the residual rate of pollutant, the change of cleaning rear surface acid-base property, cleaning
Variation, the cleaning abrasion, five angles of influence cleaned to poster mechanical property caused by poster of rear surface appearance color mention
Five kinds of appraisal procedures are gone out, assessment is more scientific more comprehensively.
(2) testing result of five kinds of appraisal procedures can be intuitively quickly observed by FIO figure.
(3) FIO method gives the corresponding weighted value of five kinds of appraisal procedures and the corresponding point value of wash result, passes through weighting
The method of average can be comprehensive by five kinds of appraisal procedures, obtains comprehensive wash result.
Obviously, the invention patent is not only applicable to poster, it may also be used for the wash result of other types historical relic is assessed, can
To generate various deformation, those skilled in the art directly can export or associate institute from the invention patent disclosure
There is deformation, is considered as the scope of protection of the patent of the present invention.
Detailed description of the invention
Fig. 1 is Technology Roadmap of the invention.
Fig. 2 is wash result FIO figure.
Fig. 3 cleaning technique route map.
Fig. 4 lime mud cleaning process photo.
(a) after fresh brick sample, (b) painting lime wash, (c) brushing yellow mud, (d) mechanical stripping, after (e) chemical cleaning.
Pollutant residual region after the completion of Fig. 5 cleaning.
Fig. 6 cleans front and rear surfaces microscopic appearance (200 times of amplification).
(a) after the completion of fresh lime sample, (b) cleaning, the region in black surround is the region for occurring wearing.
Fig. 7 simulation ground battle sample clean result FIO figure.
Specific embodiment
Below with reference to embodiment, the present invention will be further described, but the present invention is not limited to following embodiments.
Embodiment 1
Implementation process of the invention is further illustrated by the cleaning of poster analog sample.The cleaning technique route of poster is such as
Shown in Fig. 3.
Sample preparation: blue bricks is cut into 5cm × 5cm × 1cm sample, specimen surface applies lime wash, to simulate
Then the white font on blue bricks surface conserves 7 days under natural conditions.Lime mud is prepared after the completion of maintenance, by 60 mesh of loess
After sieve is sieved through, the water of soil quality 15% and the white lime of 5% mass are added, is applied to specimen surface after mixing evenly, thoroughly
White area is covered, is then conserved 7 days in its natural state.
Cleaning process photo is as shown in figure 4, cleaning process is as follows:
(1) Mechanical Method is successively removed: on cleaning poster when thicker lime mud, first moistening lime slurry pulp layer with distilled water
It is allowed to soft loose, then removes yellow mud layer layer by layer to yellow mud layer with a thickness of 0.5mm or so with medical surgical knife.
(2) prepare cleaning agent: then suitable carbonic acid is added in the EDETATE SODIUM salting liquid of 5% concentration of configuration into solution
Hydrogen ammonium to solution ph is between 6.5~7.5.
(3) appropriate chemical is dipped with cotton ball brush, layer surface is calcareously held in cleaning.
(4) with the small spraying hydro-peening cleaning area for filling deionized water, residual solvent is removed.
(1) wash result is assessed respectively.
(1) pollutant remains method
The pollutant residual region of specimen surface is as shown in Figure 5 after the completion of cleaning.The part that black line is irised out is still to have pollution
The remaining region of object, calculates through PhotoShop software, and the occupied pixel of pollutant residual region is 224469, cleaning area
The occupied pixel in domain be 2705717, therefore pollutant residual rate be 8.30%, according to table 1 determine, wash result be compared with
It is good.
(2) pH value method
The pH value of white area is 8.0 before brushing yellow mud, and the pH value of specimen surface is 7.4 after the completion of cleaning, and pH value becomes
Rate is
Judged according to table 2, wash result is preferable.
(3) color difference analysis method
Record brushing lime mud before and cleaning after the completion of white area L, a, b value, as shown in table 9.
The cleaning of table 9 front and back chromatic value record sheet
| Project | L | a | b |
| Before brushing lime mud | 90.2 | 1.3 | 4.4 |
| After the completion of cleaning | 87.0 | 0.8 | 3.5 |
It is computed, the value of chromatism Δ E before brushing lime mud and after the completion of cleaning is 3.36, determines cleaning effect according to table 3
Fruit is fabulous.
(4) surface abrasion area ratio analytic approach
As shown in fig. 6, the region in black surround is the region for occurring wearing.
Use Photoshop calculate constituency area account for cleaning area area be 2.92%, according to table 4 judgement wash result compared with
It is good.
(5) firmness change rate analytic approach
Superficial hardness number before brushing lime mud is 254, and hardness number is 230 after the completion of cleaning, is obtained firmly according to formula 2
Spending change rate is 9.45%, determines that wash result is preferable according to table 5.
(2) FIO method comprehensive assessment wash result is used
(1) FIO figure is drawn as shown in fig. 7, can intuitively find out every kind of appraisal procedure according to Fig. 7 according to the above analysis result
Assessment result.
(2) wash result comprehensive assessment value is calculated by formula 3.
It can determine that comprehensive wash result is good according to table 8.
Claims (2)
1. a kind of appraisal procedure for poster surface yellow mud wash result, which is characterized in that specific implementation step is as follows:
(1) wash result is assessed respectively using five kinds of methods, respectively commented five kinds of wash results according to corresponding testing result
Valence: pollutant residual, pH value, color difference analysis, surface abrasion area ratio, surface hardness analysis are classified as fabulous, preferable, conjunction respectively
It is lattice, poor, very poor；
(2) comprehensive assessment wash result, specific implementation step are as follows:
(1) above-mentioned five kinds of detection methods are utilized respectively to detect wash result, record the wash result of every kind of method: pole
It is good, preferable, qualified, poor, very poor；
(2) draw FIO figure, that is, draw 5 side shape structures, 5 tops respectively correspond pollutant residual method, pH value method, color difference analysis method,
Surface abrasion Area Ratio Method, surface hardness analytic approach, from pentagonal center take turns doing outward four it is parallel with pentagonal configuration
The small pentagonal configuration of similar nesting, five points on five lines from outer to inner respectively correspond it is fabulous, preferable, qualified, poor,
It is very poor；
(3) corresponding vertex is found out according to the wash result of every kind of detection method respectively, find out five vertex are connected
Come, the new pentagon of formation, inside is indicated with dash area；In figure the wash result of five kinds of indexs respectively correspond pH value method,
Pollutant remains method, color difference analysis method, surface abrasion rate analytic approach, firmness change rate analytic approach, can be from figure intuitively
The direct effect of every kind of method out；
(4) according to the correlation of 5 kinds of appraisal procedures and cleaning effect, the weight factor Q of parameter is determined using 0-4 point system；0-4
Point system is to widen the distance for comparing marking, i.e., when each index of progress compares one by one by significance level using rule
Be dissolved into important ratio relatively in.It is important to make 4 scores if the importance of two elements differs greatly, it is unessential to make 0 score；
If the importance difference of two elements be not it is very big, it is important to make 3 scores, it is unessential to make 1 score；If the importance of two indices
Basic indifference makes 2 scores respectively；Comparison score summation is necessarily equal to 4 points two-by-two；Then weight is calculated according to cumulative score；
Specific as shown in table 1 through the calculating of 0-4 point system matrix, the corresponding point value of cleaning effect is as shown in table 2.
Each appraisal procedure 0-4 point system weight calculation table of table 1
2 wash result of table and corresponding point value
Each index is calculated according to formula 1 using weighted mean method finally, obtains wash result comprehensive assessment value W；Root
Comprehensive wash result is obtained according to the corresponding relationship of table 3.
In formula, W-wash result comprehensive assessment value, QiThe weighted value of-items appraisal procedure, Pi- wash result grade is corresponding
Point value；
The corresponding relationship of 3 comprehensive assessment value W of table and comprehensive wash result
2. a kind of appraisal procedure for poster surface yellow mud wash result described in accordance with the claim 1, which is characterized in that five
Kind wash result evaluation: pollutant residual, pH value, color difference analysis, surface abrasion area ratio, surface hardness analysis, specific as follows:
(1) pollutant remains method
Pollutant residual rate refers to the area ratio for still having the remaining region of pollutant to account for cleaning area, and pollutant remains the specific of method
Operating procedure is as follows:
1. first delimitation needs the region cleaned, the region then cleaned to needs is cleaned, by the region for needing to clean and clearly
It is taken pictures with digital camera in region after the completion of washing；
2. cleaning is completed rear surface using Photoshop software and still remains pollutant by the photo after the completion of observation cleaning
Region with black line iris out come；
3. being calculated black line using Photoshop software and irised out region to account for the area ratio of cleaning area is pollutant residual rate；
Pollutant residual rate and the corresponding relationship of wash result are as shown in table 4.
The corresponding relationship of table 4 pollutant residual rate and wash result
(2) pH value method
After the completion of cleaning, with secondary the making in the untainted region in poster surface and the pH change rate assessment wash result of cleaning rear region
With；Specific steps are as follows:
1. examining cleaning to complete front and back poster and its load using pH meter according to SN/T 2302.1-2009 surface pH value measuring method
The pH value in body surface face, operating procedure are as follows: suitable deionized water is added dropwise to tested surface with dropper, soaks tested surface sufficiently；It will
Flat tip electrode is perpendicularly oriented to tested surface, and imposing certain pressure contacts flat tip electrode closely with wetted part；It presses simultaneously
Manual time-keeping, certain time interval 180s read test value after pH value tends towards stability；The pH value for choosing 5 points is averaged
Surface pH value as cleaning front and back；
2. measuring the pH value P in the uncontaminated region in poster surface1With the pH value P after cleaning2, the pH of cleaning front and back is calculated according to formula 2
It is worth change rate ψ, wash result is judged according to table 5；
The corresponding relationship of table 5 pH value change rate ψ and wash result grade
(3) color difference analysis method
Regulation according to GB/T 1766-2008 in relation to color difference measures uncontaminated region original material and cleaning using general colour difference meter
Rear region material chromatic value.L value represents brightness, and value indicates that-a indicates green ,+b from 0 (black)~100 (white) ,+a
Indicate yellow ,-b indicates blue.It can analyze whether detected material has occurred discoloration, discolouration phenomena and its journey by chromatic value size
Degree.After two kinds of colors use L, a, b to demarcate respectively, total color difference Δ E=[(L1-L2)2+(a1-a2)2+(b1-b2)2]1/2, NBS=
0.92 × Δ E (wherein L1、a1、b1Refer to L, a, b value of uncontaminated region original material；L2、a2、b2Refer to cleaning rear region material
L, a, b value).
Uncontaminated region is calculated by the calculation formula of total color difference and cleans the value of chromatism of rear region, and cleaning knot is judged according to table 6
Fruit；
The corresponding relationship of table 6 value of chromatism and wash result
(4) surface abrasion area ratio
It is observed by microscope, specific implementation step is as follows:
It takes pictures 1. treating cleaning area using videomicroscopy and amplifying 200 times, 200 times is amplified to this region again after the completion of cleaning
It takes pictures；
2. cleaning is completed rear surface using Photoshop software and the area worn occurs by the photo before comparison cleaning and after cleaning
Domain with black line iris out come；
3. the use of the percentage that the area that Photoshop software calculating black line irises out region accounts for the photo gross area being that surface is ground
Damage；
The corresponding relationship of surface abrasion rate and wash result is as shown in table 7；It only visually observes after the completion of cleaning and is ground less than surface
Damage could use the method, if naked eyes can observe directly surface abrasion, this Indexs measure result is considered as very poor；
The corresponding relationship of table 7 surface abrasion rate and wash result
(5) surface hardness analytic approach
Influence using the assessment cleaning of surface hardness analytic approach to historical relic mechanical property.
Leeb Hardness Tester is that specimen surface, measurement punching are impacted under certain test force effect with the impact body with certain mass
Body is hit away from the impact velocity and rebound speed at specimen surface 1mm, calculation formula are as follows: HL=1000* (VB/VA), in formula: HL-
Lee ' hardness symbol；VA-bulb impact velocity, m/s；VB-bulb ball rebound velocity, m/s；
Test need to select 10 test points to obtain 10 data, finally calculate average value and obtain the lee ' hardness value of test object；
Measure formula hardness number H in the intact region of poster1With formula hardness number H in cleaning rear region2, calculated according to formula 3
Surface hardness change rate ω judges wash result according to table 8；
The corresponding relationship of table 8 surface hardness change rate ω and wash result grade
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111069140A (en) * | 2019-11-25 | 2020-04-28 | 哈尔滨思哲睿智能医疗设备有限公司 | Verification method of medical instrument final cleaning process |
| CN112200452A (en) * | 2020-10-09 | 2021-01-08 | 中国人民解放军陆军防化学院 | Disinfection effect evaluation method |
| CN112718710A (en) * | 2020-12-30 | 2021-04-30 | 南开大学 | Method for analyzing copper substrate pollutants and laser cleaning effect thereof based on red, green and blue numerical values |
| CN113433012A (en) * | 2021-07-28 | 2021-09-24 | 陕西科技大学 | Health assessment method for ceramic cultural relics |
| CN113916800A (en) * | 2021-10-08 | 2022-01-11 | 南京航空航天大学 | Detection method for visually judging abrasion of high polymer plastic abrasive |
| CN114472386A (en) * | 2022-01-25 | 2022-05-13 | 无锡贝斯柯自动化科技有限公司 | Intelligent cleaning method and system for granular powder conveying device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111069140A (en) * | 2019-11-25 | 2020-04-28 | 哈尔滨思哲睿智能医疗设备有限公司 | Verification method of medical instrument final cleaning process |
| CN112200452A (en) * | 2020-10-09 | 2021-01-08 | 中国人民解放军陆军防化学院 | Disinfection effect evaluation method |
| CN112718710A (en) * | 2020-12-30 | 2021-04-30 | 南开大学 | Method for analyzing copper substrate pollutants and laser cleaning effect thereof based on red, green and blue numerical values |
| CN113433012A (en) * | 2021-07-28 | 2021-09-24 | 陕西科技大学 | Health assessment method for ceramic cultural relics |
| CN113916800A (en) * | 2021-10-08 | 2022-01-11 | 南京航空航天大学 | Detection method for visually judging abrasion of high polymer plastic abrasive |
| CN114472386A (en) * | 2022-01-25 | 2022-05-13 | 无锡贝斯柯自动化科技有限公司 | Intelligent cleaning method and system for granular powder conveying device |
| CN114472386B (en) * | 2022-01-25 | 2023-09-15 | 无锡贝斯柯自动化科技有限公司 | Intelligent cleaning method and system for particle powder conveying device |
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| CN109978818B (en) | 2021-08-17 |
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