CN115945463A - Electronic display screen production process capable of improving product quality - Google Patents
Electronic display screen production process capable of improving product quality Download PDFInfo
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- CN115945463A CN115945463A CN202211591284.7A CN202211591284A CN115945463A CN 115945463 A CN115945463 A CN 115945463A CN 202211591284 A CN202211591284 A CN 202211591284A CN 115945463 A CN115945463 A CN 115945463A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 239000011521 glass Substances 0.000 claims abstract description 91
- 238000002474 experimental method Methods 0.000 claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000009835 boiling Methods 0.000 claims abstract description 39
- 239000012459 cleaning agent Substances 0.000 claims abstract description 38
- 238000004140 cleaning Methods 0.000 claims abstract description 32
- 238000003908 quality control method Methods 0.000 claims abstract description 32
- 239000000853 adhesive Substances 0.000 claims abstract description 5
- 230000001070 adhesive effect Effects 0.000 claims abstract description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 40
- 239000003208 petroleum Substances 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 17
- 238000011156 evaluation Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 12
- 238000007689 inspection Methods 0.000 claims description 5
- 238000005070 sampling Methods 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 239000013072 incoming material Substances 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000003599 detergent Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000000370 laser capture micro-dissection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
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Abstract
The invention relates to the technical field of electronic display screen production, and discloses an electronic display screen production process for improving product quality, which comprises the following steps: s1) preparing a cleaning agent, and cleaning the ITO glass by using a plasma cleaning machine; s2) detecting the ITO glass by adopting a water drop contact angle tester, detecting and confirming whether the water drop contact angle of the ITO glass reaches a quality control standard, if so, executing a step S3), otherwise, adjusting the component proportion of the cleaning agent and repeatedly executing the step S1); and S3) attaching the ITO glass to the circuit board by adopting a binding machine and ACF conductive adhesive, performing a boiling experiment and a high-temperature high-humidity experiment, and determining whether the quality control standard is met, wherein the ITO glass is qualified if the quality control standard is met, and the ITO glass is unqualified if the quality control standard is not met. The surface of the ITO glass is cleaned by a cleaning agent, the quality of the ITO glass is controlled in a mode of detecting a water drop contact angle, and the quality of a product is detected and confirmed by a boiling experiment and a high-temperature high-humidity experiment, so that the attaching quality is improved, and poor display is reduced.
Description
Technical Field
The invention relates to the technical field of electronic display screen production, in particular to an electronic display screen production process for improving product quality.
Background
With the improvement of the technical level, more and more electronic display screens including LCDs, LCMs and OLEDs are applied to visual electronic devices in production and life, improving convenience and effectiveness of reading and operation for users.
In the prior art, ITO glass is attached to a circuit board to manufacture an electronic display screen, a conductive film of the ITO glass is only 15-30 microns thick, the cleaning difficulty is high, and the effect of adhering the conductive film to the circuit board is poor as long as oil stains are left on the surface of the conductive film, so that characters or images displayed on the electronic display screen in the using process have a defect phenomenon, and then customer complaints and goods returns are caused.
Disclosure of Invention
Aiming at the defects, the invention aims to provide an electronic display screen production process for improving the product quality, which adopts a cleaning agent to clean ITO glass and ensures the output product quality through water drop contact angle, water boiling experiment and high temperature and high humidity experiment detection.
In order to achieve the purpose, the invention adopts the following technical scheme:
a production process of an electronic display screen for improving product quality comprises the following steps:
s1) preparing a cleaning agent, adding the cleaning agent into a plasma cleaning machine, and cleaning ITO glass which is qualified by material incoming inspection by using the plasma cleaning machine;
s2) detecting the cleaned ITO glass by using a water drop contact angle tester, detecting and confirming whether the water drop contact angle of the batch of cleaned ITO glass meets the quality control standard, if so, executing the step S3), otherwise, adjusting the component proportion of the cleaning agent and repeatedly executing the step S1);
s3) attaching the ITO glass to a circuit board by using a binding machine and ACF conductive adhesive, performing a boiling experiment and a high-temperature high-humidity experiment, and determining whether the attached ITO glass meets the quality control standard without bubbles, wherein the ITO glass is qualified if the ITO glass meets the quality control standard without bubbles, and is unqualified if the ITO glass does not meet the quality control standard;
wherein, the cleaning agent comprises 10-30% of petroleum ether and 70-90% of absolute ethyl alcohol by weight percentage.
Further, step S1) is preceded by: and S0) sampling and detecting whether oil stains exist on the surface of the incoming ITO glass, and returning the whole batch of ITO glass if the oil stains exist on the surface of the incoming ITO glass.
Specifically, in the step S2), the quality control standard is that the water drop contact angle is not more than 20 degrees, and the frequency for detecting the water drop contact angle of the ITO glass is 5pcs of full detection of a first sample in batches and 5pcs of spot detection every 2 hours.
Further, the following steps are further included between the steps S2) and S3):
s2.1) if the contact angle of the water drop of the ITO glass is found to not meet the quality control standard through detection, judging that the cleaned ITO glass is unqualified;
s2.2) adjusting the content of petroleum ether in the cleaning agent;
s2.3) evaluating the cleaning performance of the cleaning agent after the petroleum ether content is adjusted through a water dropping angle detection experiment, and if the evaluation is qualified, entering the next step; if the evaluation is not qualified, the step S2.2) is carried out, and the ITO glass cleaned at the previous stage is cleaned again.
Specifically, in step S3), the quality control standard is: and (3) taking 5pcs of each electronic display screen which is dried for 30 minutes, respectively carrying out a boiling experiment and a high-temperature high-humidity experiment, and detecting and confirming that no bubble appears on the electronic display screens subjected to the two experiments.
Specifically, the experimental conditions of the poaching experiment are as follows: boiling the electronic display screen to be detected in boiling water at 100 ℃ for 2h, and detecting and confirming that no bubbles exist in the electronic display screen to be detected by using an electron microscope;
the experimental conditions of the high-temperature and high-humidity experiment are as follows: and (3) placing the electronic display screen to be detected in an environment with the humidity of RH90% and the temperature of 60 ℃ for standing for 96h, and then detecting by using an electron microscope to confirm that no bubbles exist in the electronic display screen to be detected.
Further, the following steps are included after the step S3):
s3.1) if the electronic display screen subjected to the boiling experiment and the electronic display screen subjected to the high-temperature high-humidity experiment do not have bubbles, judging that the electronic display screen product subjected to the step S3) is a qualified finished product; on the contrary, if any one of the electronic display screen subjected to the boiling experiment and the electronic display screen subjected to the high-temperature and high-humidity experiment generates bubbles, the electronic display screen product completing the step S3) is judged to be a unqualified product, the unqualified product is moved to a unqualified product bin for isolation, and then the step S2.2) is carried out, and the method further comprises the following steps after the step S2.3):
s2.3.1) evaluating the cleaning performance of the detergent after adjusting the content of petroleum ether by a water boiling experiment and a high temperature and high humidity experiment, and if the evaluation is qualified, entering the step S3); if the evaluation is not qualified, step S2.2) is performed.
The technical scheme of the invention has the beneficial effects that: according to the electronic display screen production process for improving the product quality, the surface of the ITO glass is cleaned by adopting a cleaning agent, the quality of the cleaned ITO glass is controlled in a mode of detecting a water drop contact angle, and then the electronic display screen product is confirmed to be free of bubbles through a boiling experiment and a high-temperature high-humidity experiment, so that the attaching quality of the electronic display screen is improved, and the customer complaint rate of poor display after the product is output is reduced.
Drawings
Fig. 1 is a process flow chart of the production process of the electronic display screen for improving the product quality according to the invention.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
A production process of an electronic display screen for improving product quality comprises the following steps:
s1) preparing a cleaning agent, adding the cleaning agent into a plasma cleaning machine, and cleaning ITO glass qualified by incoming material inspection by using the plasma cleaning machine;
s2) detecting the cleaned ITO glass by using a water drop contact angle tester, detecting and confirming whether the water drop contact angle of the batch of cleaned ITO glass meets the quality control standard, if so, executing the step S3), otherwise, adjusting the component proportion of the cleaning agent and repeatedly executing the step S1);
s3) attaching the ITO glass to a circuit board by using a binding machine and ACF conductive adhesive, performing a boiling experiment and a high-temperature high-humidity experiment, and determining whether the attached ITO glass meets the quality control standard without bubbles, wherein the ITO glass is qualified if the ITO glass meets the quality control standard without bubbles, and is unqualified if the ITO glass does not meet the quality control standard;
wherein, the cleaning agent comprises 10-30% of petroleum ether and 70-90% of absolute ethyl alcohol by weight percentage.
FIG. 1 is a process flow diagram of an embodiment of an LCD panel using the process for manufacturing an electronic display panel with improved product quality according to the present invention.
According to the production process of the electronic display screen for improving the product quality, disclosed by the invention, the surface of the ITO glass is cleaned by adopting a cleaning agent, the quality of the cleaned ITO glass is controlled in a mode of detecting a water drop contact angle, and then the electronic display screen product is confirmed to be free of bubbles by taking a boiling experiment and a high-temperature high-humidity experiment as detection means, so that the attachment quality of the electronic display screen is improved, and the customer complaint rate of poor display after the product is output is reduced.
The cleaning agent adopts absolute ethyl alcohol as diluent, so that the effect of petroleum ether on cleaning the ITO glass is improved; if the content of the petroleum ether exceeds 30wt%, residual petroleum ether is easily left on the surface of the conductive film of the cleaned ITO glass, the residual petroleum ether has a certain corrosion effect on LCD conductive circuits, and then air gap defects appear below the conductive film of the ITO glass attached in the using process, and when the content of the used petroleum ether is 31-35wt%, the electronic display screen cannot generate air bubbles in a boiling experiment and a high-temperature high-humidity experiment, so that the detection and discovery cannot be carried out, the later-stage use quality of the electronic display screen is influenced, and the customer complaint rate exceeds 500ppm.
Further, step S1) is preceded by: and S0) sampling and detecting whether oil stains exist on the surface of the incoming ITO glass, and returning the whole batch of ITO glass if the oil stains exist on the surface of the incoming ITO glass.
The surface of the ITO glass of the material is detected by a microscope under the condition of amplifying by 100 times, so that the phenomenon that the production quality of the electronic display screen is influenced by using the ITO glass polluted by oil stains is avoided.
Specifically, in the step S2), the quality control standard is that the water drop contact angle is not more than 20 degrees, and the frequency for detecting the water drop contact angle of the ITO glass is 5pcs of full detection of a first sample in batches and 5pcs of spot detection every 2 hours.
The contact angle of the water drop is large, which indicates that the surface of the ITO glass is polluted by hydrophobic dirt (oil/grease, etc.), and conversely, the contact angle is small, and the liquid drop is broken or spread to be thin, which indicates that the surface is cleaner. The invention defines that the cleanliness of the ITO glass with the water drop contact angle less than or equal to 20 degrees reaches the standard.
Further, the following steps are further included between the steps S2) and S3):
s2.1) if the contact angle of the water drop of the ITO glass is found to not meet the quality control standard through detection, judging that the cleaned ITO glass is unqualified;
s2.2) adjusting the content of petroleum ether in the cleaning agent;
s2.3) evaluating the cleaning performance of the cleaning agent after the petroleum ether content is adjusted through a water dropping angle detection experiment, and if the evaluation is qualified, entering the next step; if the evaluation is not qualified, the step S2.2) is carried out, and the ITO glass cleaned at the previous stage is cleaned again.
The cleaning quality of the ITO glass is confirmed by performing timing sampling inspection on the first sample of the ITO glass cleaning and the cleaning process, and if unqualified cleaning is found, the cleaning effect of the ITO glass cleaning is improved by adjusting the proportion of the cleaning agent and evaluating the cleaning performance of the cleaning agent.
Specifically, in step S3), the quality control standard is: and (3) taking 5pcs of each electronic display screen which is dried for 30 minutes, respectively carrying out a boiling experiment and a high-temperature high-humidity experiment, and detecting and confirming that no bubble appears on the electronic display screens subjected to the two experiments.
And (4) detecting and confirming the quality of the electronic display screen after the step S3) is finished through a boiling experiment and a high-temperature high-humidity experiment, and verifying the performance of the washed ITO glass adopting the cleaning agent.
Specifically, the experimental conditions of the boiling experiment are as follows: boiling the electronic display screen to be detected in boiling water at 100 ℃ for 2h, and detecting and confirming that no bubbles exist in the electronic display screen to be detected by using an electron microscope;
the experimental conditions of the high-temperature and high-humidity experiment are as follows: and (3) placing the electronic display screen to be detected in an environment with the humidity of RH90% and the temperature of 60 ℃ for standing for 96h, and then detecting by using an electron microscope to confirm that no bubbles exist in the electronic display screen to be detected.
The temperature resistance and the humidity resistance of the electronic display screen are tested through the boiling experiment and the high-temperature high-humidity experiment under the above experimental conditions.
Further, the following steps are included after the step S3):
s3.1) if the electronic display screen subjected to the boiling experiment and the electronic display screen subjected to the high-temperature high-humidity experiment do not generate bubbles, judging that the electronic display screen product subjected to the step S3) is a qualified finished product; on the contrary, if any one of the electronic display screen subjected to the boiling experiment and the electronic display screen subjected to the high-temperature and high-humidity experiment generates bubbles, the electronic display screen product completing the step S3) is judged to be a unqualified product, the unqualified product is moved to a unqualified product bin for isolation, and then the step S2.2) is carried out, and the method further comprises the following steps after the step S2.3):
s2.3.1) evaluating the cleaning performance of the cleaning agent after adjusting the content of petroleum ether by a water boiling experiment and a high temperature and high humidity experiment, and if the evaluation is qualified, entering the step S3); if the evaluation is not qualified, step S2.2) is entered.
If the electronic display screen of the poaching experiment or the high-temperature high-humidity experiment is unqualified, the cleaning performance of the cleaning agent is evaluated by the formula of the cleaning agent and the electronic display screen attached with the ITO glass is detected through the poaching experiment and the high-temperature high-humidity experiment so as to ensure the quality of output products.
Examples 1 to 3 and comparative examples 1 to 2
1. According to the raw material ratios and process parameters listed in table 1, electronic display screens of the examples and comparative examples were prepared according to the following steps:
s0) sampling and detecting that the surface of the incoming ITO glass has no oil stain, and returning the whole batch of products if the oil stain is found on the surface of the control standard;
s1) preparing a cleaning agent, adding the cleaning agent into a plasma cleaning machine, and cleaning ITO glass qualified by incoming material inspection by using the plasma cleaning machine;
s2) detecting the cleaned ITO glass by using a water drop contact angle tester, detecting and confirming whether the water drop contact angle of the batch of cleaned ITO glass meets the quality control standard, if so, executing the step S3), otherwise, adjusting the component proportion of the cleaning agent and repeatedly executing the step S1);
s2.1) if the contact angle of the water drop of the ITO glass is found to not meet the quality control standard through detection, judging that the cleaned ITO glass is unqualified;
s2.2) adjusting the content of petroleum ether in the cleaning agent;
s2.3) evaluating the cleaning performance of the cleaning agent after the petroleum ether content is adjusted through a water dropping angle detection experiment, and if the evaluation is qualified, entering the next step; if the evaluation is not qualified, the step S2.2) is carried out, and the ITO glass cleaned at the earlier stage is cleaned again;
s2.3.1) evaluating the cleaning performance of the detergent after adjusting the content of petroleum ether by a water boiling experiment and a high temperature and high humidity experiment, and if the evaluation is qualified, entering the step S3); if the evaluation is not qualified, the step S2.2) is carried out;
s3) attaching the ITO glass to a circuit board by adopting a binding machine and ACF conductive adhesive, performing a boiling experiment and a high-temperature high-humidity experiment, and determining whether the attached ITO glass meets the bubble-free quality control standard, wherein the attached ITO glass is a qualified product if the attached ITO glass meets the bubble-free quality control standard, and the attached ITO glass is an unqualified product if the attached ITO glass does not meet the bubble-free quality control standard;
s3.1) if the electronic display screen subjected to the boiling experiment and the electronic display screen subjected to the high-temperature high-humidity experiment do not have bubbles, judging that the electronic display screen product subjected to the step S3) is a qualified finished product; on the contrary, if any one of the electronic display screen subjected to the boiling experiment and the electronic display screen subjected to the high-temperature high-humidity experiment has bubbles, the electronic display screen product which finishes the step S3) is judged to be an unqualified product, the unqualified product is moved to an unqualified product bin for isolation, and then the step S2.2) is carried out;
in the step S2), the quality control standard is that the contact angle of the water drop is less than or equal to 20 degrees, and the frequency of detecting the contact angle of the water drop of the ITO glass is 5pcs of full detection of a first sample in batches and 5pcs of spot detection every 2 hours;
the experimental conditions of the poaching experiment were: boiling the electronic display screen to be detected in boiling water at 100 ℃ for 2h, and detecting and confirming that no bubbles exist in the electronic display screen to be detected by using an electron microscope;
the experimental conditions of the high-temperature and high-humidity experiment are as follows: placing the electronic display screen to be detected in an environment with the humidity of RH90% and the temperature of 60 ℃ for standing for 96h, and then detecting and confirming that no bubble exists in the electronic display screen to be detected by using an electron microscope;
in step S3), the quality control standard is as follows: and (3) taking 5pcs of each electronic display screen which is dried for 30 minutes, respectively carrying out a boiling experiment and a high-temperature high-humidity experiment, and detecting and confirming that no bubble appears on the electronic display screens subjected to the two experiments.
2. The customer complaint rate of poor display of the related electronic display screens of the examples and comparative examples was tracked and recorded.
Table 1 raw material ratios, test results and customer complaint rates showing poor results for each example and comparative example
In summary, as described in the above embodiments of the present invention, in the electronic display screen production process for improving product quality, the surface of the ITO glass is cleaned by using the cleaning agent, the quality of the cleaned ITO glass is controlled by detecting a water droplet contact angle, and then the electronic display screen product is confirmed to be bubble-free by detecting through a boiling experiment and a high temperature and high humidity experiment, so that the attachment quality of the electronic display screen is improved, and the customer complaint rate of poor display after the product is output is reduced.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (7)
1. The production process of the electronic display screen for improving the product quality is characterized by comprising the following steps of:
s1) preparing a cleaning agent, adding the cleaning agent into a plasma cleaning machine, and cleaning ITO glass qualified by incoming material inspection by using the plasma cleaning machine;
s2) detecting the cleaned ITO glass by using a water drop contact angle tester, detecting and confirming whether the water drop contact angle of the batch of cleaned ITO glass meets the quality control standard, if so, executing the step S3), otherwise, adjusting the component proportion of the cleaning agent and repeatedly executing the step S1);
s3) attaching the ITO glass to a circuit board by adopting a binding machine and ACF conductive adhesive, performing a boiling experiment and a high-temperature high-humidity experiment, and determining whether the attached ITO glass meets the bubble-free quality control standard, wherein the attached ITO glass is a qualified product if the attached ITO glass meets the bubble-free quality control standard, and the attached ITO glass is an unqualified product if the attached ITO glass does not meet the bubble-free quality control standard;
wherein, the cleaning agent comprises 10-30% of petroleum ether and 70-90% of absolute ethyl alcohol by weight percentage.
2. The process for producing an electronic display screen for improving the product quality according to claim 1, further comprising, before the step S1): and S0) sampling and detecting whether oil stains exist on the surface of the incoming ITO glass, and returning the whole batch of ITO glass if the oil stains exist on the surface of the incoming ITO glass.
3. The production process of the electronic display screen for improving the product quality as claimed in claim 1, wherein in the step S2), the quality control standard is that the contact angle of a water drop is less than or equal to 20 degrees, and the frequency for detecting the contact angle of the water drop of the ITO glass is that the first sample of the ITO glass is completely checked by 5pcs in batches and the first sample of the ITO glass is randomly checked by 5pcs every 2 hours.
4. The production process of the electronic display screen for improving the product quality of the claim 3 is characterized by further comprising the following steps between the steps S2) and S3):
s2.1) if the contact angle of the water drop of the ITO glass is found to not meet the quality control standard through detection, judging that the cleaned ITO glass is unqualified;
s2.2) adjusting the content of petroleum ether in the cleaning agent;
s2.3) evaluating the cleaning performance of the cleaning agent after the petroleum ether content is adjusted through a water dropping angle detection experiment, and if the evaluation is qualified, entering the next step; if the evaluation is not qualified, the step S2.2) is carried out, and the ITO glass cleaned at the previous stage is cleaned again.
5. The process for producing an electronic display screen for improving the product quality as claimed in claim 4, wherein in the step S3), the quality control standard is as follows: and (3) taking 5pcs of each electronic display screen which is dried for 30 minutes, respectively carrying out a boiling experiment and a high-temperature high-humidity experiment, and detecting and confirming that no bubble appears on the electronic display screens subjected to the two experiments.
6. The production process of the electronic display screen for improving the product quality of claim 5, wherein the experimental conditions of the boiling experiment are as follows: boiling the electronic display screen to be detected in boiling water at 100 ℃ for 2h, and detecting and confirming that no bubbles exist in the electronic display screen to be detected by using an electron microscope;
the experimental conditions of the high-temperature and high-humidity experiment are as follows: and (3) placing the electronic display screen to be detected in an environment with the humidity of RH90% and the temperature of 60 ℃ for standing for 96h, and then detecting by using an electron microscope to confirm that no bubbles exist in the electronic display screen to be detected.
7. The process for producing an electronic display screen for improving the product quality as claimed in claim 5, wherein the step S3) is followed by the following steps:
s3.1) if the electronic display screen subjected to the boiling experiment and the electronic display screen subjected to the high-temperature high-humidity experiment do not generate bubbles, judging that the electronic display screen product subjected to the step S3) is a qualified finished product; on the contrary, if any one of the electronic display screen subjected to the boiling experiment and the electronic display screen subjected to the high-temperature high-humidity experiment generates bubbles, the electronic display screen product which finishes the step S3) is judged to be a unqualified product, the unqualified product is moved to a unqualified product bin for isolation, and then the step S2.2) is carried out, and the following steps are further included after the step S2.3):
s2.3.1) evaluating the cleaning performance of the cleaning agent after adjusting the content of petroleum ether by a water boiling experiment and a high temperature and high humidity experiment, and if the evaluation is qualified, entering the step S3); if the evaluation is not qualified, step S2.2) is entered.
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| CN116516436A (en) * | 2023-07-03 | 2023-08-01 | 深圳市欣茂鑫实业有限公司 | Coating control method and system based on micro-arc oxidation |
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