CN103175749B - A kind of method of testing of automobile plastic inner and outer decorative parts scraping and wiping resistance performance - Google Patents
A kind of method of testing of automobile plastic inner and outer decorative parts scraping and wiping resistance performance Download PDFInfo
- Publication number
- CN103175749B CN103175749B CN201110440151.5A CN201110440151A CN103175749B CN 103175749 B CN103175749 B CN 103175749B CN 201110440151 A CN201110440151 A CN 201110440151A CN 103175749 B CN103175749 B CN 103175749B
- Authority
- CN
- China
- Prior art keywords
- scraping
- outer decorative
- plastic inner
- decorative parts
- automobile plastic
- 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.)
- Expired - Fee Related
Links
- 238000007790 scraping Methods 0.000 title claims abstract description 158
- 239000004033 plastic Substances 0.000 title claims abstract description 107
- 229920003023 plastic Polymers 0.000 title claims abstract description 107
- 238000010998 test method Methods 0.000 title claims abstract description 26
- 238000012360 testing method Methods 0.000 claims abstract description 115
- 238000000034 method Methods 0.000 claims abstract description 42
- 238000005259 measurement Methods 0.000 claims abstract description 24
- 230000003595 spectral effect Effects 0.000 claims description 29
- 238000001514 detection method Methods 0.000 claims description 10
- 230000004075 alteration Effects 0.000 abstract description 13
- 230000000007 visual effect Effects 0.000 abstract description 12
- 230000003678 scratch resistant effect Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 24
- 239000004743 Polypropylene Substances 0.000 description 12
- 229920001155 polypropylene Polymers 0.000 description 12
- 238000004088 simulation Methods 0.000 description 7
- 238000005070 sampling Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000012956 testing procedure Methods 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000013500 performance material Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The present invention provides the method for testing of a kind of automobile plastic inner and outer decorative parts scraping and wiping resistance performance, comprises the steps: step 1: provide automobile plastic inner and outer decorative parts model；Step 2: use the five fingers scraping tester that described automobile plastic inner and outer decorative parts model is carried out wiping operation, scrape on the surface of described automobile plastic inner and outer decorative parts model and clash square crossing point；Step 3: adopt spectrophotometric test measurement examination region centered by the square crossing point of automobile plastic inner and outer decorative parts model, drawing the value of chromatism before and after scraping of the region centered by described square crossing point, the size of described value of chromatism characterizes the scraping and wiping resistance performance of automobile plastic inner and outer decorative parts。The method of testing of the present invention is the scratch-resistant method of testing for the exploitation of automobile plastic inner and outer decorative parts, by test chromatic aberration, it is possible to more effectively characterizing improvement of visual effect, and have the high stability emulating property and test, testing cost is relatively low。
Description
Technical field
The invention belongs to the field tests of automobile plastic inner and outer decorative parts, more particularly, it relates to the method for testing of a kind of automobile plastic inner and outer decorative parts scraping and wiping resistance performance。
Background technology
Recently as people to improving constantly that automotive quality requires, the scratch resistance of automobile plastic inner and outer decorative parts is also brought into schedule gradually。And effectively to carry out relevant work, it is necessary to unified standard is weighed。If the test instrunment that the detection department of motor corporation is not correlated with and unified testing standard, just cannot effectively detect the quality of scraping and wiping resistance performance, usually need outer test of entrusting, cycle is longer, cause intra-company's inefficiency, so needing to set up the test method of the scraping and wiping resistance performance of suitable detection automobile plastic inner and outer decorative parts。
Domestic there is no the relevant patent of automobile plastic inner and outer decorative parts scratch-resistant and standard at present, in the world also but without the method for testing of the scraping and wiping resistance performance forming unified automobile plastic inner and outer decorative parts, but external each big car manufactures is meet scratch-resistant job requirement to have the testing standard of oneself, and summing up existing testing scheme probably has three kinds: 1, use the method for testings such as coating, PASS, yarn fabric color fastness；2, adopt the five fingers scraping tester to simulate actual scuffing form, re-use the width of microscope test cut；3, adopt cross to draw lattice instrument and simulate actual scuffing form, re-use the chromatic aberration before and after spectral photometric colour measuring measurement test agent scraping。
But, above-mentioned three kinds of equal Shortcomings of testing scheme: 1, about the first method of testing: coating, PASS are mainly for applicator, but coating layer thickness is relatively thin, wear-resisting test is laid particular stress in the test of yarn fabric color fastness, and the above-mentioned method of testing used is unsuitable for for the scraping and wiping resistance performance of automobile plastic inner and outer decorative parts is tested；2, about the second method of testing: automobile consumer compares the visual sensation of concern, and test scratch width can not characterize improvement of visual effect effectively, often there is identical scratch width, and improvement of visual effect differs bigger phenomenon；3, about the third method of testing: the scratch form major part of actual automobile plastic inner and outer decorative parts is relatively more random, and cut is very sparse, and the method prepares fine and closely woven latticed cut, and the emulation that simulation reality scratches is poor；And cut spacing is less, influencing each other between cut is relatively big, is unfavorable for that spectral photometric colour measuring meter is tested, is unfavorable for the stability of test, further, since grid is fine and closely woven, scraping stroke is longer, and the damage scraping finger is serious, and testing cost is higher。
Summary of the invention
Present invention seek to address that the method for testing testing scratch width in the method for testing of existing automobile plastic inner and outer decorative parts scraping and wiping resistance performance can not characterize improvement of visual effect effectively, and adopt cross to draw lattice instrument and simulate actual scuffing form, influencing each other between cut is bigger, it is unfavorable for that spectral photometric colour measuring meter is tested, it is unfavorable for the stability of test and the technical problem that testing cost is higher。
In order to solve above-mentioned technical problem, the present invention provides the method for testing of a kind of automobile plastic inner and outer decorative parts scraping and wiping resistance performance, comprises the steps:
Step 1: automobile plastic inner and outer decorative parts model is provided；
Step 2: use the five fingers scraping tester that described automobile plastic inner and outer decorative parts model is carried out wiping operation, scrape on the surface of described automobile plastic inner and outer decorative parts model and clash square crossing point；
Step 3: adopt spectrophotometric test measurement examination region centered by the square crossing point of automobile plastic inner and outer decorative parts model, drawing the value of chromatism before and after scraping of the region centered by described square crossing point, the size of described value of chromatism characterizes the scraping and wiping resistance performance of automobile plastic inner and outer decorative parts。
In the method for testing of described automobile plastic inner and outer decorative parts scraping and wiping resistance performance, every kind of automobile plastic inner and outer decorative parts product every batch randomly selects m block and tests as automobile plastic inner and outer decorative parts model, and the value of m is 1-10。
In the method for testing of described automobile plastic inner and outer decorative parts scraping and wiping resistance performance, described automobile plastic inner and outer decorative parts model is the automobile plastic inner and outer decorative parts model meeting the five fingers scraping tester, spectrophotometric test meter detection platform requirement size；Described automobile plastic inner and outer decorative parts model is smooth model, patterned template or pattern model。
In the method for testing of described automobile plastic inner and outer decorative parts scraping and wiping resistance performance, adopt the five fingers scraping tester to scrape on described automobile plastic inner and outer decorative parts model and clash the scratch grid including n square crossing point, the value of n is be more than or equal to 9, and the spacing between adjacent 2 square crossing points is more than 8mm。
In the method for testing of described automobile plastic inner and outer decorative parts scraping and wiping resistance performance, the spacing between adjacent 2 square crossing points is 8-22mm。
In the method for testing of described automobile plastic inner and outer decorative parts scraping and wiping resistance performance, the every load scraping finger of described the five fingers scraping tester is identical, is 10 ± 0.5N or 5 ± 0.5N；Scraping speed is 100 ± 5mm/s。
In the method for testing of described automobile plastic inner and outer decorative parts scraping and wiping resistance performance, in step 2, when using the five fingers scraping tester that described automobile plastic inner and outer decorative parts model is carried out wiping operation, five at least two scraped in finger of the five fingers scraping tester are selected to carry out wiping operation。
In the method for testing of described automobile plastic inner and outer decorative parts scraping and wiping resistance performance, spectral photometric colour measuring measurement is adopted to try the region centered by n square crossing point of single model, show that on single model, n the region centered by square crossing point is at swipe value of chromatism △ L1, the △ L2 of front and back ... △ Ln, then the size calculating average color difference values △ L, the △ L of single model characterizes the scratch resistance of single model。
In the method for testing of described automobile plastic inner and outer decorative parts scraping and wiping resistance performance, every kind of automobile plastic inner and outer decorative parts product every batch randomly selects m block and tests as automobile plastic inner and outer decorative parts model, and the value of m is 1-10；Adopt the spectral photometric colour measuring score Ce Shi m model, draw on m model the average color difference values △ L before and after scraping of the region centered by n square crossing point respectively, the size calculating average color difference values △ L ', the △ L ' of m model characterizes the scratch resistance of this batch of automobile plastic inner and outer decorative parts product。
In the method for testing of described automobile plastic inner and outer decorative parts scraping and wiping resistance performance, described method of testing carries out in laboratory environment, temperature is 23 ± 2 DEG C, and humidity is 50% ± 5%, and described automobile plastic inner and outer decorative parts model is standing more than 16 hours before scraping, after scraping。
The method of testing of the present invention adopts the five fingers scraping tester that described automobile plastic inner and outer decorative parts model is carried out wiping operation, scrape on the surface of described automobile plastic inner and outer decorative parts model and clash square crossing point, obtain the cut grid with reasonable cut spacing, the scraping process of simulated automotive inner and outer decorative parts；Then the spectrophotometric test measurement examination region centered by the square crossing point of automobile plastic inner and outer decorative parts model value of chromatism before and after scraping is adopted, the method of testing of the present invention is the scratch-resistant method of testing for the exploitation of automobile plastic inner and outer decorative parts, by testing chromatic aberration, can more effectively characterize improvement of visual effect, and there is the stability of high emulation property and test, compared to existing cross cross-hatching, ensure that rational cut spacing (more than 8mm, preferred 8mm-22mm), the emulation that simulation reality scratches is stronger, influencing each other between cut is less, the scratch resistance of model can be reflected more accurately, additionally, scraping stroke is shorter, the damage scraping finger is slighter, and testing cost is relatively low。
Detailed description of the invention
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment, the present invention is further elaborated。Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention。
It will be apparent to one skilled in the art that Japanese, U.S.A is that car is then more and adopts the five fingers scraping tester, test scratch width (such as: GMNAGMN3943 method of testing)；Lattice instrument, test chromatic aberration (such as: GMW14688 method of testing) drawn in Europe system car many employings cross。The five fingers scraping tester is based on following car gage design (Ford BN108-13;General GMN3943;Daimler Chrysler LP-463DD-18-01), Taber company of the U.S. produce, be generally of five and scrape finger, the five fingers scraping tester is widely used in automobile industry, mainly for detection of wearability smooth in inner and outer decorative parts of automobile, lines plastics inner and outer decorative parts；It includes stand, be arranged on stand pneumatic detection platform and five independent axostylus axostyles scrape finger (can change as required different weight and selectable scrape finger), during test, test sample is fixed in pneumatic detection platform；The finger constant perpendicular of scraping of five independent axostylus axostyles acts on test sample surface, scrape finger and be arranged on stand, operator can make that selectes to scrape the equilbrium position referring to be fixed on vertical test specimen surface by stand, so that the irregular sample of width also can be tested, it is operated by scraping finger and sample is carried out wiping operation。But, the method of testing of existing employing the five fingers scraping tester, it is adopt the five fingers scraping tester to scrape at sample surfaces to clash five cuts, simulate actual scuffing form, re-using the width of microscope test cut, test scratch width can comparatively effectively characterize wearability, but can not effectively characterize improvement of visual effect, often there is identical scratch width, and improvement of visual effect differs bigger phenomenon。And in the present invention, it is then adopt at least two in the five fingers scraping tester to scrape to refer to first scrape at specimen surface clash at least two the first cuts, then it is perpendicular to described first cut to scrape again and clash at least two the second cuts, square crossing point is clashed thus scraping on the surface of described automobile plastic inner and outer decorative parts model, may be repeated scraping, clash, to scrape on described automobile plastic inner and outer decorative parts model, the scratch grid including n square crossing point。In the preferred case, the value of n is be more than or equal to 9, spacing between adjacent 2 square crossing points is more than 8mm, owing to the five fingers scraping adjacent two spacing scraped between finger of tester are 22mm, for the ease of wiping operation, in a more preferred case, the spacing between adjacent 2 square crossing points is 8-22mm。Then adopt spectrophotometric test measurement examination region centered by described square crossing point again, draw the value of chromatism before and after scraping of the region centered by described square crossing point。
Similarly, it will be apparent to one skilled in the art that the operation principle of spectral photometric colour measuring meter, in the prior art, spectral photometric colour measuring meter is observed for employing cross is drawn the actual scuffing form of lattice instrument simulation。The spectral photometric colour measuring meter that described spectral photometric colour measuring meter selects Japan's Konica Minolta model to be CM-2500d, CM-2500d selects SCI test pattern and D65 light source, concrete test condition: 1, the viewing angle selected is 10 °, and light source is daylight source；2, measured area is 8mm(diameter), comprise specular light, light source luminescent includes all of UV-shares of pulsed Xenon arc lamp。In the present invention, adopt spectrophotometric test measurement examination region centered by the square crossing point of automobile plastic inner and outer decorative parts model, draw the value of chromatism before and after scraping of the region centered by described square crossing point, it is distinctive in that with existing cross cross cut test method, although cross cross cut test method also tests chromatic aberration, but adopt fine and closely woven cut (about 2mm), owing to the measurement diameter of spectral photometric colour measuring meter is 8mm, can produce to influence each other between the cut of cross cross cut test method。The present invention is also adopted by cut gridding method in scraping process, but ensure that rational cut spacing is (more than 8mm, preferred 8-22mm), spectral photometric colour measuring measurement any one region centered by square crossing point of color can be adopted, the emulation that simulation reality scratches is stronger, influencing each other between cut is less, and cut can reflect the scratch resistance of model more accurately；And adopt the scraping stroke that the five fingers scraping tester carries out swiping shorter, cross is drawn lattice instrument and is only included one and scrape finger, and adopt the five fingers scraping tester can use more than two even five scrape finger, adjacent two distances scraped between finger are 22mm, thus the damage scraping finger is slighter, further, the testing cost of the present invention relatively low (price of the five fingers scraping tester is 5-7 ten thousand, and the price of lattice instrument drawn in cross is 30-40 ten thousand)。
Accordingly, the invention provides the method for testing of a kind of automobile plastic inner and outer decorative parts scraping and wiping resistance performance, comprise the steps: step 1: automobile plastic inner and outer decorative parts model is provided；Specifically, it will be apparent to one skilled in the art that automobile plastic inner and outer decorative parts product includes the plastic product by technological formings such as injection mouldings, for instance: wheel cover, instrumental panel, panel etc.；This step includes: A, sampling: automobile plastic inner and outer decorative parts production becomes to meet the automobile plastic inner and outer decorative parts model of the five fingers scraping tester, spectrophotometric test meter detection platform requirement size, and described automobile plastic inner and outer decorative parts model is the various forms of plastics models such as smooth model, patterned template or pattern model。Every kind of automobile plastic inner and outer decorative parts product every batch randomly selects m block and tests as automobile plastic inner and outer decorative parts model, m can select according to concrete needs, sampling test result more at most more tends to true, but sampling is consuming time more long more at most, m=1-10 in the preferred case；B, standing: before scraping, the model chosen is placed in laboratory environment, temperature is 23 ± 2 DEG C, humidity: in 50 ± 5%, stand more than 16 hours, owing to scratch-resistant testing result is had impact by different temperature and humidities, in order to meet the stability of test, make sample have the time of abundance to stand to reach with the temperature and humidity of laboratory in laboratory environments to balance, provide the crystallization time of abundance can also to the moulding of the non-sufficient crystallising of part simultaneously。
Step 2: use the five fingers scraping tester that described automobile plastic inner and outer decorative parts model is carried out wiping operation, scrape on the surface of described automobile plastic inner and outer decorative parts model and clash square crossing point。
As it was previously stated, the five fingers scraping tester that the present invention adopts is produced by Taber company of the U.S., scrape finger including stand, the pneumatic detection platform being arranged on stand and five independent axostylus axostyles。In the present invention, this step specifically includes: A, regulate the test parameters of the five fingers scraping tester: selects appropriate payload according to practical situation, makes every to scrape and refer to that the load born is identical, be generally adopted 10 ± 0.5N or 5 ± 0.5N；Regulate the scraping speed scraping finger, meet 100 ± 5mm/s；B, stroke grid: the model (m) chosen is sequentially fixed in detection platform, adjust and scrape the relative position referred to model, adopt at least two in the five fingers scraping tester to scrape to refer to first scrape on the surface of model clash at least two the first cuts, then it is perpendicular to described first cut to scrape again and clash at least two the second cuts, model is scraped and clashes the scratch grid including n square crossing point。N can select according to concrete needs, and n value test result more at most more tends towards stability, more representative, but the test of square crossing point is consuming time more long more at most, in general, when the value of n is be more than or equal to 9, test result has had relative representativeness, thus, it is preferable to the value of n is more than 9。Because, the diameter of the range of observation of spectral photometer is 8mm, thus, in the preferred case, spacing between adjacent 2 square crossing points is more than 8mm, owing to the five fingers scraping adjacent two spacing scraped between finger of tester are 22mm, for the ease of wiping operation, in a more preferred case, the spacing between adjacent 2 square crossing points is 8-22mm。It is worth mentioning that, the required scratch grid including n square crossing point is clashed in order to scrape on described automobile plastic inner and outer decorative parts model, above-mentioned wiping operation can adopt 2-5 to scrape finger as required, and may be repeated, namely can first scrape and clash at least two the first cuts, then it is perpendicular to described first cut to scrape again and clash at least two the second cuts, it is parallel to described first cut again to scrape again and clash at least two article of the 3rd cut, it is sequentially carried out, spacing between adjacent two square crossing points can differ, but need to ensure more than 8mm, so that spectrophotometric test meter is tested。And by respectively m model being swiped, obtain the model of m the scratch grid with n square crossing point。
Step 3: adopt spectrophotometric test measurement examination region centered by the square crossing point of automobile plastic inner and outer decorative parts model, drawing the value of chromatism before and after scraping of the region centered by described square crossing point, the size of described value of chromatism characterizes the scraping and wiping resistance performance of automobile plastic inner and outer decorative parts。
As previously mentioned, spectral photometric colour measuring of the present invention is calculated as the spectral photometric colour measuring meter that Japan's Konica Minolta model is CM-2500d, CM-2500d selects SCI test pattern and D65 light source, concrete test condition: 1, the viewing angle selected is 10 °, and light source is daylight source；2, measured area is 8mm(diameter), comprise specular light, light source luminescent includes all of UV-shares of pulsed Xenon arc lamp。In the present invention, adopt spectrophotometric test measurement examination region centered by the square crossing point of automobile plastic inner and outer decorative parts model, draw the value of chromatism before and after scraping of the region centered by described square crossing point。
Specifically, comprise the steps: A, standing: be placed on laboratory environment by scraping m the model nuzzled up, temperature is 23 ± 2 DEG C, and humidity is in 50 ± 5%, stands more than 16 hours, owing to having because recrystallization, deformation cause the changes such as healing in a period of time after generation of the scratch on model, cause that the test value in during this period of time is unstable, experiments verify that, after standing 16h, cut is more stable, and then ensures the stability of test。B, test aberration: adopt spectral photometric colour measuring measurement examination to scrape the region centered by n square crossing point of the single model nuzzled up, show that on single model, n the region centered by square crossing point is at swipe value of chromatism △ L1, the △ L2 of front and back ... △ Ln, m model is repeated operation and can obtain m group (△ L1、△L2…△Ln) data。C, disposal data: calculate the average color difference values △ L, i.e. △ L in single model1、△L2…△LnMeansigma methods, the size of △ L characterizes the scratch resistance of single model。To m group (△ L1、△L2…△Ln) data are calculated, the size obtaining average color difference values △ L ', the △ L ' of m model characterizes the scratch resistance of this batch of automobile plastic inner and outer decorative parts product。
It should be noted that △ L, △ L ' value is more little, scraping and wiping resistance performance is more good。Sample cross cross-hatching is with △ L-value for 2 for standard, and the scratch performance lower than 2 is better, and the scratch performance higher than 2 is poor (cross cross-hatching)；The present inventor is according to long-term experimental result and improvement of visual effect, think that the standard of △ L, △ L ' of method of testing of the present invention is: △ L, △ L ' value is less than 1, then illustrate that the scraping and wiping resistance performance of automobile plastic inner and outer decorative parts product is better, △ L, △ L ' is worth between 1 and 2, illustrate that the scraping and wiping resistance performance of automobile plastic inner and outer decorative parts product is medium, △ L, △ L ' value higher than 2, then illustrates that the scraping and wiping resistance performance of automobile plastic inner and outer decorative parts product is poor。
In sum, the present invention adopts the five fingers scraping tester scraping model to obtain the cut grid of reasonable cut spacing (more than 8mm, it is preferably 8-22mm), the scraping process of simulated automotive inner and outer decorative parts realistically, then adopt spectral photometric colour measuring measurement sample board by any one region centered by square crossing point at the chromatic aberration of scraping front and back, simulation improvement of visual effect, thus effectively characterizing the quality of inner and outer decorative parts of automobile scraping and wiping resistance performance, reach high emulation, low cost, the results of industrial application of high efficiency, can be used to specification and the test supporting automotive plastic parts scraping and wiping resistance performance。There is following feature: 1, specific aim, the present invention be directed to the scratch-resistant method of testing of automobile plastic inner and outer decorative parts exploitation；2, effectiveness, this invention, by testing chromatic aberration, more effectively characterizes improvement of visual effect；3, emulation property, ensure that rational cut spacing in scraping process, the emulation that simulation reality scratches is relatively strong, and adopts the method for testing of simulation improvement of visual effect；4, low cost, equipment and testing cost are relatively low。
The present invention is further illustrated by the examples below。
Embodiment 1
Embodiment 1, for the method for testing of the scraping and wiping resistance performance of exterior part in the automobile plastic of the present invention is described, comprises the steps:
1, by the car panel product of injection formed dermatoglyph, choose 10 pieces and exemplarily test, by described 10 pieces of models when temperature 25 DEG C, humidity 50%, stand 24h；
2, use the five fingers scraping tester that the automobile armrest model of described 10 pieces of dermatoglyphs is carried out wiping operation, the process of wiping operation: the every load scraping finger of described the five fingers scraping tester is 10N, adopt four to scrape finger and model is carried out wiping operation, adjacent two spacing scraped between finger are 22mm, scraping speed is 100mm/s, each model is sequentially fixed on inspection platform, adjust four and scrape the relative position referred to model, carry out two and form scratch grid in the scraping in mutually perpendicular direction, described scratch grid includes 16 square crossing points, spacing between adjacent 2 square crossing points is 22mm, repetitive operation 10 times, obtain 10 pieces of models scraped；
3, the chromatic aberration before and after spectral photometric colour measuring measurement sample board scraping is adopted, record test result: adopt the region centered by 16 square crossing points on spectral photometric colour measuring measurement examination monolithic model, show that on single model, 16 regions centered by square crossing point are at swipe value of chromatism △ L1, the △ L2 of front and back ... △ L16, the size that can calculate average color difference values △ L, the △ L of single model characterizes the scratch resistance of single model；10 pieces of models of test successively, draw on 10 models the value of chromatism before and after scraping of the region centered by 16 square crossing points respectively, then the average color difference values △ L ' of 10 models is calculated, described average color difference values △ L ' is equal to 1.14, the size of △ L ' characterizes the scraping and wiping resistance performance of car panel product, average color difference values △ L ' is more little, illustrates that scraping and wiping resistance performance is more good, and test result is in Table 1。
Table 1
。
Embodiment 2
Embodiment 2 is for illustrating that in automobile plastic, the method for testing of the scraping and wiping resistance performance of exterior part is for the selection of material, the solution of the present embodiment 2 is the method for testing of the automobile plastic inner and outer decorative parts scraping and wiping resistance performance by the present invention, the scraping and wiping resistance performance of monitoring the used material of automobile plastic inner and outer decorative parts, specifically includes following step:
1, choose used material injection and go out the automobile armrest product of dermatoglyph, choose 5 pieces and exemplarily test；
2, use the five fingers scraping tester that the automobile armrest model of described 5 pieces of dermatoglyphs is carried out wiping operation, the process of wiping operation: the every load scraping finger of described the five fingers scraping tester is 10N, scraping speed is 100mm/s, adopt two to scrape finger and model is carried out wiping operation, two spacing scraped between finger are 22mm, scrape finger by these two on model, repeat secondary wiping operation, scrape the scratch of four transverse directions and the scratch of four longitudinal directions perpendicular with the scratch of these four transverse directions, the scratch of described four transverse directions and the scratch of four longitudinal directions form scratch grid, described scratch grid includes 16 square crossing points, spacing between adjacent 2 square crossing points is 11mm, successively the automobile armrest model of described 5 pieces of dermatoglyphs is carried out above-mentioned wiping operation；
3, the chromatic aberration before and after spectral photometric colour measuring measurement sample board scraping is adopted, record test result: adopt the region centered by 16 square crossing points on spectral photometric colour measuring measurement examination monolithic model, show that on single model, n the region centered by square crossing point is at swipe value of chromatism △ L1, the △ L2 of front and back ... △ L16,5 pieces of models of test successively, draw on 5 models the value of chromatism before and after scraping of the region centered by 16 square crossing points respectively, calculate the average color difference values △ L ' of 5 models；
4, the reference colour difference according to the scraping and wiping resistance performance of the automobile armrest model of dermatoglyph judges, is the material that scraping and wiping resistance performance meets requirement less than the material of standard value, does not use more than the material that standard value, scraping and wiping resistance performance are poor。
Embodiment 3
Embodiment 3 is for illustrating that in automobile plastic, the method for testing of the scraping and wiping resistance performance of exterior part for selecting between alternative materials A and material B, for selecting scraping and wiping resistance performance material more preferably；The solution of the present embodiment 3 is respectively candidate materials A and material B to be carried out scratch-resistant test, chooses and scrapes anti-scratch performance preferably material；Specifically include following step:
1, chosen material A and material B inject smooth automobile wheel cap product, choose respectively 1 piece exemplarily 1, model 2 tests；
2, use the five fingers scraping tester that described automobile wheel cap model 1 and model 2 are carried out wiping operation, the process of wiping operation: the every load scraping finger of described the five fingers scraping tester is 5N, scraping speed is 95mm/s, adopt three to scrape finger and model is carried out wiping operation, adjacent two spacing scraped between finger are 22mm, scrape finger by these three on model, scrape the scratch of three transverse directions and the scratch of three longitudinal directions perpendicular with the scratch of these three transverse directions, then the scratch of these three longitudinal directions vertical is perpendicular and bias the scratch of three transverse directions of scraping again, the scratch of described six transverse directions and the scratch of three longitudinal directions form scratch grid, described scratch grid includes 18 square crossing points, spacing between adjacent 2 square crossing points is 8mm, 14mm |, 22mm, successively described smooth automobile wheel cap model 1 and model 2 are carried out above-mentioned wiping operation；
3, the chromatic aberration before and after spectral photometric colour measuring measurement sample board 1 and model 2 scraping is adopted, record test result: adopt the region centered by 9 square crossing points on spectral photometric colour measuring measurement examination monolithic model 1, show that on single model, 9 regions centered by square crossing point are at swipe value of chromatism △ L1, the △ L2 of front and back ... △ L9, calculate the average color difference values of single model 1△L 1 ；Then the region centered by 9 square crossing points on spectral photometric colour measuring measurement examination monolithic model 2 is adopted, show that on single model, 9 regions centered by square crossing point are at swipe value of chromatism △ L1, the △ L2 of front and back ... △ L9, calculate the average color difference values of single model 2△L 2 ；
4, the average color difference values of model 1 is contrasted△L 1 Average color difference values with model 2△L 2 , average color difference values△L 2 More than average color difference values△L 1 , illustrate that the scraping and wiping resistance performance of model 1 is better, thus choose the material making model 1 as the use material of automobile wheel cap product。
Embodiment 4
When embodiment 4 increases for the requirement that the scraping and wiping resistance performance to the automotive upholstery adopting polypropylene (PP) to make is described, how to carry out the improvement of material。The solution of the present embodiment 4 is the method for testing of the automobile plastic inner and outer decorative parts scraping and wiping resistance performance by the present invention, the scraping and wiping resistance performance of the automotive upholstery that polypropylene (PP) makes in development is tested, finally to meet the improvement requirement of the scraping and wiping resistance performance of inside gadget product, specifically include following step:
1, choose used PP material and inject the model of dermatoglyph automotive upholstery product, use the five fingers scraping tester that dermatoglyph model is carried out wiping operation, use the chromatic aberration before and after spectral photometric colour measuring measurement test agent scraping, recording original test result, above-mentioned method of testing can be identical with the testing procedure of embodiment 1；
2, according to original test result, it is determined that the desired value of scraping and wiping resistance performance, draft the improving countermeasure of scraping and wiping resistance performance, used PP material is improved, obtain new PP material；
3, choose new PP and expect the model of injection moulding branching automotive upholstery product, use the five fingers scraping tester that new dermatoglyph model is carried out wiping operation；Using the chromatic aberration before and after spectral photometric colour measuring measurement sample board scraping, record test result 1, above-mentioned method of testing can be identical with the testing procedure of embodiment 1；
4, contrasting test result and the desired value of step 2, if meeting requirement, determining the improving countermeasure of this scraping and wiping resistance performance, it is determined that new PP material meets the new demand of product；If being unsatisfactory for requiring, again drafting the improving countermeasure of next scraping and wiping resistance performance, further to the existing improvement carrying out scraping and wiping resistance performance with PP material, obtaining another new PP material；
5, repeat step 3,4 operation, until determining the improving countermeasure of suitable scraping and wiping resistance performance, make new PP material meet the requirement of scraping and wiping resistance performance of new product；
By above example 1-4, can be seen that the method for testing of the scraping and wiping resistance performance of exterior part in the automobile plastic of the present invention, can effectively characterize the quality of the scraping and wiping resistance performance of automobile plastic inner and outer decorative parts, to reach the results of industrial application of high emulation property, low cost, high efficiency；The method of testing of this invention both may be used for usual test, test result also dependent on this method of testing gained, determine the improvement direction of the scraping and wiping resistance performance of material, be conducive to motor corporation to the test of exterior part, research and development and quality control in its automobile plastic。
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention。
Claims (8)
1. the method for testing of an automobile plastic inner and outer decorative parts scraping and wiping resistance performance, it is characterised in that comprise the steps:
Step 1: automobile plastic inner and outer decorative parts model is provided；
Step 2: use the five fingers scraping tester that described automobile plastic inner and outer decorative parts model is carried out wiping operation, scrape on the surface of described automobile plastic inner and outer decorative parts model and clash square crossing point；
Step 3: adopt spectral photometric colour measuring measurement examination region centered by the square crossing point of automobile plastic inner and outer decorative parts model, drawing the value of chromatism before and after scraping of the region centered by described square crossing point, the size of described value of chromatism characterizes the scraping and wiping resistance performance of automobile plastic inner and outer decorative parts；
The every load scraping finger of described the five fingers scraping tester is identical, is 10 ± 0.5N or 5 ± 0.5N；
Adopting the five fingers scraping tester to scrape on described automobile plastic inner and outer decorative parts model and clash the scratch grid including n square crossing point, the value of n is be more than or equal to 9, and the spacing between adjacent 2 square crossing points is 8-22mm。
2. the method for testing of automobile plastic inner and outer decorative parts scraping and wiping resistance performance as claimed in claim 1, it is characterised in that every kind of automobile plastic inner and outer decorative parts product every batch randomly selects m block and tests as automobile plastic inner and outer decorative parts model, and the value of m is 1-10。
3. the method for testing of automobile plastic inner and outer decorative parts scraping and wiping resistance performance as claimed in claim 1 or 2, it is characterized in that, described automobile plastic inner and outer decorative parts model is the automobile plastic inner and outer decorative parts model meeting the five fingers scraping tester, spectral photometric colour measuring meter detection platform requirement size；Described automobile plastic inner and outer decorative parts model is smooth model, patterned template or pattern model。
4. the method for testing of automobile plastic inner and outer decorative parts scraping and wiping resistance performance as claimed in claim 1, it is characterised in that scraping speed is 100 ± 5mm/s。
5. the method for testing of automobile plastic inner and outer decorative parts scraping and wiping resistance performance as claimed in claim 1, it is characterized in that, in step 2, when using the five fingers scraping tester that described automobile plastic inner and outer decorative parts model is carried out wiping operation, five at least two scraped in finger of the five fingers scraping tester are selected to carry out wiping operation。
6. the method for testing of automobile plastic inner and outer decorative parts scraping and wiping resistance performance as claimed in claim 1, it is characterized in that, spectral photometric colour measuring measurement is adopted to try the region centered by n square crossing point of single model, show that on single model, n the region centered by square crossing point is at swipe value of chromatism △ L1, the △ L2 of front and back ... △ Ln, then the size calculating average color difference values △ L, the △ L of single model characterizes the scratch resistance of single model。
7. the method for testing of automobile plastic inner and outer decorative parts scraping and wiping resistance performance as claimed in claim 1, it is characterised in that every kind of automobile plastic inner and outer decorative parts product every batch randomly selects m block and tests as automobile plastic inner and outer decorative parts model, and the value of m is 1-10；Adopt the spectral photometric colour measuring score Ce Shi m model, draw on m model the average color difference values △ L before and after scraping of the region centered by n square crossing point respectively, the size calculating average color difference values △ L ', the △ L ' of m model characterizes the scratch resistance of this batch of automobile plastic inner and outer decorative parts product。
8. the method for testing of automobile plastic inner and outer decorative parts scraping and wiping resistance performance as claimed in claim 1, it is characterized in that, described method of testing carries out in laboratory environment, temperature is 23 ± 2 DEG C, humidity is 50% ± 5%, and described automobile plastic inner and outer decorative parts model is standing more than 16 hours before scraping, after scraping。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110440151.5A CN103175749B (en) | 2011-12-26 | 2011-12-26 | A kind of method of testing of automobile plastic inner and outer decorative parts scraping and wiping resistance performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110440151.5A CN103175749B (en) | 2011-12-26 | 2011-12-26 | A kind of method of testing of automobile plastic inner and outer decorative parts scraping and wiping resistance performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103175749A CN103175749A (en) | 2013-06-26 |
| CN103175749B true CN103175749B (en) | 2016-06-22 |
Family
ID=48635758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110440151.5A Expired - Fee Related CN103175749B (en) | 2011-12-26 | 2011-12-26 | A kind of method of testing of automobile plastic inner and outer decorative parts scraping and wiping resistance performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103175749B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289945B (en) * | 2016-08-11 | 2019-06-25 | 上海大学 | Vehicle body scratch test machine |
| CN114216807A (en) * | 2022-01-30 | 2022-03-22 | 重庆长安汽车股份有限公司 | Method for testing wear resistance of automotive interior plastic part |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6520004B1 (en) * | 1998-03-11 | 2003-02-18 | E. I. Du Pont De Nemours And Company | Test apparatus and method of measuring mar resistance of film or coating |
| CN101576462A (en) * | 2009-06-15 | 2009-11-11 | 震宇（芜湖）实业有限公司 | Antifriction tester for post-processing of plastic parts |
| CN101747555A (en) * | 2008-12-16 | 2010-06-23 | 金发科技股份有限公司 | Scratch resisting polypropylene compound |
-
2011
- 2011-12-26 CN CN201110440151.5A patent/CN103175749B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6520004B1 (en) * | 1998-03-11 | 2003-02-18 | E. I. Du Pont De Nemours And Company | Test apparatus and method of measuring mar resistance of film or coating |
| CN101747555A (en) * | 2008-12-16 | 2010-06-23 | 金发科技股份有限公司 | Scratch resisting polypropylene compound |
| CN101576462A (en) * | 2009-06-15 | 2009-11-11 | 震宇（芜湖）实业有限公司 | Antifriction tester for post-processing of plastic parts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103175749A (en) | 2013-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Leach | The measurement of surface texture using stylus instruments. | |
| CN105891321B (en) | The micro-magnetic detection scaling method of ferrimagnet structural mechanical property | |
| Barini et al. | Uncertainty analysis of point-by-point sampling complex surfaces using touch probe CMMs: DOE for complex surfaces verification with CMM | |
| Anderson et al. | Repeatability and reproducibility of TEM soot primary particle size measurements and comparison of automated methods | |
| CN101806690A (en) | Method for testing physical performances of film and film-substrate interface based on nanometer indentation continuous stiffness curve | |
| Trenk et al. | The “Virtual CMM” a software tool for uncertainty evaluation–practical application in an accredited calibration lab | |
| CN103175749B (en) | A kind of method of testing of automobile plastic inner and outer decorative parts scraping and wiping resistance performance | |
| WO2014074413A1 (en) | Film thickness, refractive index, and extinction coefficient determination for film curve creation and defect sizing in real time | |
| Chen et al. | A study of process quality assessment for golf club-shaft in leisure sport industries | |
| Fleßner et al. | Assessment of the single point uncertainty of dimensional CT measurements | |
| Beaman et al. | Experimental evaluation of software estimates of task specific measurement uncertainty for CMMs | |
| Stewart et al. | Edge detection, cosmic strings and the south pole telescope | |
| CN102906851B (en) | Analyze mass spectrographic method and system | |
| Arencibia et al. | Simplified model to estimate uncertainty in CMM | |
| Dury et al. | Characterising 3D optical scanner measurement performance for precision engineering | |
| CN106558086B (en) | A kind of velocity error correction method of forest stress wave tomographic imaging | |
| WO2007041197A3 (en) | Method and system for enabling automated data analysis of multiple commensurate nondestructive test measurements | |
| CN103399974B (en) | Quantize the method comparing random vibration emulated data and experimental data | |
| CN104279956A (en) | Determination method for rock structural surface reference plane | |
| Świtaj‐Zawadka et al. | Calibration in metrological approach | |
| CN113916865A (en) | Online Raman measurement method for gas retention performance of hollow microspheres | |
| CN103983204B (en) | Utilize the method for white noise PSD collimation optical surface profiler effective spatial resolution | |
| CN105426660B (en) | A kind of Forecasting Methodology of machine components table planar residual stress field | |
| KR20020027581A (en) | Method for evaluating dynamic perspective distortion of transparent body and method for supporting designing of three-dimensional shape of transparent body | |
| Summerhays et al. | Application of simulation software to coordinate measurement uncertainty evaluation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 |