CN105568308A - Cleaning method and device for precision parts - Google Patents
Cleaning method and device for precision parts Download PDFInfo
- Publication number
- CN105568308A CN105568308A CN201511022759.0A CN201511022759A CN105568308A CN 105568308 A CN105568308 A CN 105568308A CN 201511022759 A CN201511022759 A CN 201511022759A CN 105568308 A CN105568308 A CN 105568308A
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- China
- Prior art keywords
- precision component
- cleaning liquid
- hydrocarbon
- cleaning
- precision
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- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/024—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/032—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing oxygen-containing compounds
Abstract
The invention discloses a cleaning method and a cleaning device for precision parts. The method mainly comprises the following steps: step I, using a vacuum cleaner to suck dust on the surfaces of the precision parts, and then, putting the precision parts into a cleaning tank; step II, carrying out vacuum-pumping on the cleaning tank, then, using a hydrocarbon cleaning fluid to carry out vacuum ultrasonic cleaning on the precision parts, using alcohol to spray and rinse the precision parts, and carrying out vacuum drying on the precision parts; and step III, using a water-based cleaning fluid to carry out vacuum ultrasonic cleaning on the precision parts, then, using high-purity water to spray and rinse the precision parts, and carrying out vacuum drying on the precision parts. The cleaning device for the precision parts is a device matched with the method for use. The device and the method disclosed by the invention are adopted to clean the precision parts without causing damages to the parts, so that the cleaning efficiency is high, and the cleanliness of the parts meets the needs of a precision instrument.
Description
Technical field
The present invention relates to Cleaning of Parts field, more specifically, relate to a kind of purging method and device of precision component.
Background technology
Precision parts is a kind of accessory being widely used in the industries such as automobile, communication, medical treatment, clock and watch, mobile phone, computer, with common component unlike, precision parts is more accurate, and being more applicable to some has the industry of high request to precision.In precision component processing, deposit in process, piece surface is the pollutent such as covered with dust, greasy dirt inevitably, if do not remove these pollutents, certainly will cause the impact of can not ignore, therefore need clean it the performance of precision component.But existing Cleaning of Parts technology cannot meet the clean requirement of precision component, and cleaning efficiency is low, easily causes the damage of part in cleaning process.
Summary of the invention
The present invention is intended to solve that existing Cleaning of Parts technology cannot meet that the cleaning requirement of precision component, cleaning efficiency are low, easily cause the technical problem of the damage of part in cleaning process, and provides a kind of purging method and device of new precision component.
In order to achieve the above object, present invention employs following technical scheme:
A purging method for precision component, comprises the steps: step one, draws the dust on precision component surface, then it is put into rinse bath with suction cleaner; Step 2, vacuumizes rinse bath, then with there being hydrocarbon cleaning liquid to carry out vacuum ultrasonic cleaning, then with ethanol spray, rinsing, then vacuum-drying; Step 3, carries out vacuum ultrasonic cleaning with water-base cleaning liquid, then with high purity water spray, rinsing, then vacuum-drying.
As the technical scheme that the present invention improves, in the ultrasonic cleaning process of described step 2 and step 3, part needs ceaselessly or discontinuously to shift one's position.
As the technical scheme that the present invention improves, described hydrocarbon cleaning liquid is primarily of 45 ~ 65wt% isomery dodecane hydrocarbon, and 5 ~ 16wt% PF 5070,4 ~ 15wt% fatty alcohol-polyoxyethylene ether, 15 ~ 35wt% propyl carbinol forms.
Further, described hydrocarbon cleaning liquid is primarily of 50 ~ 58wt% isomery dodecane hydrocarbon, and 10 ~ 15wt% PF 5070,6 ~ 12wt% fatty alcohol-polyoxyethylene ether, 21 ~ 28wt% propyl carbinol forms.
Preferably, described hydrocarbon cleaning liquid is primarily of 54wt% isomery dodecane hydrocarbon, and 13wt% PF 5070,8wt% fatty alcohol-polyoxyethylene ether, 25wt% propyl carbinol forms.
As the technical scheme that the present invention improves, described water-base cleaning liquid is the PBS damping fluid composition of 5 ~ 8 primarily of 0.25 ~ 2.5wt% tripoly phosphate sodium STPP, 0.25 ~ 2.5wt% sodium laurylsulfonate, 0.5 ~ 5wt% Sodium Nitrite and 90 ~ 99wt%pH.
Further, described water-base cleaning liquid is the PBS damping fluid composition of 5 ~ 8 primarily of 1 ~ 2wt% tripoly phosphate sodium STPP, 1 ~ 2wt% sodium laurylsulfonate, 1 ~ 3wt% Sodium Nitrite and 93 ~ 97wt%pH.
Further, described water-base cleaning liquid is the PBS damping fluid composition of 5 ~ 8 primarily of 1.5wt% tripoly phosphate sodium STPP, 1.5wt% sodium laurylsulfonate, 2wt% Sodium Nitrite and 95wt%pH.
A washing unit for precision component, comprise set gradually dust suction chamber, organic wash room, ethanol spray rinsing room, the first vacuum drying chamber, inorganics purge chamber, high purity water spray rinsing room, the second vacuum drying chamber; Suction cleaner is provided with in described dust suction chamber; Described organic wash room is connected with vacuum pump with inorganics purge chamber, ultrasonic cleaner is provided with in it, be placed with hydrocarbon cleaning liquid and water-base cleaning liquid respectively in described ultrasonic cleaner, below described ultrasonic cleaner, be provided with ultrasonic generator.
As the technical scheme that the present invention improves, the washing unit of described precision component also comprises fixture, described fixture is stainless steel hook or long filament suspender belt, for clamping and shifting precision component, in described organic wash room and described inorganics purge chamber, described fixture can drive described precision component top to bottom, left and right, front and rear move or rotate.
Beneficial effect
The purging method of precision component of the present invention passes through dedusting, organic matter removal dirt, spray rinsing drying, further except multistage scrubbing such as organic and inorganics dirt, spray rinsing dryings, can reach very high cleanliness factor.Because whole process does not need to carry out wiping to precision component, the damage of precision component thus effectively can be avoided.In addition, present invention employs high-effective cleansing, the hydrocarbon cleaning liquid of low toxic and environment-friendly and high-effective cleansing, hydrophilic rot-resistant water-base cleaning liquid, significantly improve the surface clearness of part, effectively prevent the water mark produced in cleaning process; In vacuum environment, carry out ultrasonic cleaning, the charge stripping efficiency of scavenging solution to greasy dirt is high, and the degree of cleaning of part are up to 100%.And hydrocarbon cleaning liquid of the present invention and water-base cleaning liquid boiling point high, not volatile under vacuum conditions, be applicable to vacuum ultrasonic cleaning.
Accompanying drawing explanation
Fig. 1 is the washing unit schematic diagram of precision component of the present invention.
Embodiment
Now by reference to the accompanying drawings the specific embodiment of the present invention is described in detail.
As shown in Figure 1, the washing unit of precision component of the present invention, comprise set gradually dust suction chamber 1, organic wash room 2, ethanol spray rinsing room 3, first vacuum drying chamber 4, inorganics purge chamber 5, high purity water spray rinsing room 6, second vacuum drying chamber 7.Suction cleaner 11 is provided with in dust suction chamber 1.Be connected with vacuum pump 24 at organic wash room 2, in it, be provided with ultrasonic cleaner 21, bottom ultrasonic cleaner 21, be provided with scavenging solution relief outlet 23, the below of ultrasonic cleaner 21 is provided with ultrasonic generator 22.The epicoele of ethanol spray rinsing room 3 is provided with shower nozzle 31, and its cavity of resorption completes the rinsing work of precision component, and epicoele completes the hydro-peening work of precision component.First vacuum drying chamber 4 is connected with vacuum pump 42, bottom the first vacuum drying chamber 4, be provided with well heater 41.Be connected with vacuum pump 54 in inorganics purge chamber 5, in it, be also provided with ultrasonic cleaner 51, bottom ultrasonic cleaner 51, be provided with scavenging solution relief outlet 53, the below of ultrasonic cleaner 51 is provided with ultrasonic generator 52.The epicoele of ethanol spray rinsing room 6 is also provided with shower nozzle 61, and its cavity of resorption completes the rinsing work of precision component, and epicoele completes the hydro-peening work of precision component.Second vacuum drying chamber 7 is connected with vacuum pump 72, bottom the second vacuum drying chamber 7, be also provided with well heater 71.In organic wash room 2, be loaded with hydrocarbon cleaning liquid, in ethanol spray rinsing room 3, be loaded with ethanol, in inorganics purge chamber 5, be loaded with water-base cleaning liquid, in high purity water spray rinsing room 6, be loaded with high purity water.In the washing unit of precision component, be also provided with fixture 8, it can be stainless steel hook or long filament suspender belt.In organic wash room 2 and inorganics purge chamber 5, fixture 8 can drive precision component top to bottom, left and right, front and rear move or rotate.Because stainless steel hook or long filament hang with the contact area of part little, the surface precision of tight part can not be affected, effectively can prevent the damage of precision component in cleaning process.
The cleaning process of precision component of the present invention is as follows.Step one, draws the dust on precision component surface with suction cleaner 11, then it is put into the organism rinse bath 21 filling hydrocarbon cleaning liquid.Step 2, organism rinse bath 21 is vacuumized, then open ultrasonic generator 22 pairs of precision components and carry out vacuum ultrasonic cleaning, then proceed in ethanol spray rinsing room 3, first with the ethanol in the cavity of resorption of ethanol spray rinsing room 3, rinsing is carried out to precision component, and then carry out hydro-peening with the shower nozzle 31 in epicoele, after washing, proceed to the first vacuum drying chamber 4, start well heater 41 and vacuum pump 42, carry out vacuum-drying.After application vacuum technique, the air in precision component surface, gap and blind hole can be made all to discharge, make clean-out system immerse each position of workpiece completely.Position due to ultrasonic generator 22 is fixing, and it easily forms stationary field, causes the cleaning blind area that the acoustic pressure of some position is little, cleaning performance is poor and cause.Thus should change the position of precision component in vacuum ultrasonic cleaning process, such as top to bottom, left and right, front and rear are moved or are rotated.Step 3, precision component is proceeded to and fills in the inorganics rinse bath 5 of water-base cleaning liquid, inorganics rinse bath 51 is vacuumized, then open ultrasonic generator 52 pairs of precision components and carry out vacuum ultrasonic cleaning, then proceed in high purity water spray rinsing room 6, first with the high purity water in the cavity of resorption of high purity water spray rinsing room 6, rinsing is carried out to precision component, and then carry out hydro-peening with the shower nozzle 61 in epicoele, the second vacuum drying chamber 7 is proceeded to after washing, start well heater 71 and vacuum pump 72, carry out vacuum-drying.
Adopt two-stage cleaning model, the degree of cleaning of precision component can be significantly improved, and the precision component after the cleaning of hydrocarbon cleaning liquid, can prevent from producing water mark in follow-up water washing process.
Hydrocarbon cleaning liquid of the present invention is primarily of 45 ~ 65wt% isomery dodecane hydrocarbon, and 5 ~ 16wt% PF 5070,4 ~ 15wt% fatty alcohol-polyoxyethylene ether, 15 ~ 35wt% propyl carbinol forms.Preferably, hydrocarbon cleaning liquid is primarily of 50 ~ 58wt% isomery dodecane hydrocarbon, and 10 ~ 15wt% PF 5070,6 ~ 12wt% fatty alcohol-polyoxyethylene ether, 21 ~ 28wt% propyl carbinol forms.More preferably, hydrocarbon cleaning liquid is primarily of 54wt% isomery dodecane hydrocarbon, and 13wt% PF 5070,8wt% fatty alcohol-polyoxyethylene ether, 25wt% propyl carbinol forms.The hydrocarbon cleaning liquid of above-mentioned formula, its boiling point is high, not easily loss in vacuum environment, and toxicity is little, high to the solubleness of greasy dirt.
Water-base cleaning liquid of the present invention is the PBS damping fluid composition of 5 ~ 8 primarily of 0.25 ~ 2.5wt% tripoly phosphate sodium STPP, 0.25 ~ 2.5wt% sodium laurylsulfonate, 0.5 ~ 5wt% Sodium Nitrite and 90 ~ 99wt%pH.Preferably, water-base cleaning liquid is the PBS damping fluid composition of 5 ~ 8 primarily of 1 ~ 2wt% tripoly phosphate sodium STPP, 1 ~ 2wt% sodium laurylsulfonate, 1 ~ 3wt% Sodium Nitrite and 93 ~ 97wt%pH.More preferably, water-base cleaning liquid is the PBS damping fluid composition of 5 ~ 8 primarily of 1.5wt% tripoly phosphate sodium STPP, 1.5wt% sodium laurylsulfonate, 2wt% Sodium Nitrite and 95wt%pH.The water-base cleaning liquid of above-mentioned formula, can go out the greasy dirt on precision component surface and the inorganics of adhesion further, good water solubility, easily Ex-all completely in follow-up high purity water rinsing and hydro-peening.
Embodiment 1
The formula of hydrocarbon cleaning liquid is:
Isomery dodecane hydrocarbon 45wt%
PF 5070 16wt%
Fatty alcohol-polyoxyethylene ether 4wt%
Propyl carbinol 35wt%
The formula of water-base cleaning liquid is:
Tripoly phosphate sodium STPP 2.5wt%
Sodium laurylsulfonate 2.5wt%
Sodium Nitrite 5wt%
PH is the PBS damping fluid 90wt% of 5 ~ 8
Precision component degree of cleaning are up to 95%.
Embodiment 2
The formula of hydrocarbon cleaning liquid is:
Isomery dodecane hydrocarbon 50wt%
PF 5070 10wt%
Fatty alcohol-polyoxyethylene ether 12wt%
Propyl carbinol 28wt%
The formula of water-base cleaning liquid is:
Tripoly phosphate sodium STPP 2wt%
Sodium laurylsulfonate 2wt%
Sodium Nitrite 3wt%
PH is the PBS damping fluid 93wt% of 5 ~ 8
Precision component degree of cleaning are up to 98%.
Embodiment 3
The formula of hydrocarbon cleaning liquid is:
Isomery dodecane hydrocarbon 54wt%
PF 5070 13wt%
Fatty alcohol-polyoxyethylene ether 18wt%
Propyl carbinol 25wt%
The formula of water-base cleaning liquid is:
Tripoly phosphate sodium STPP 1.5wt%
Sodium laurylsulfonate 1.5wt%
Sodium Nitrite 2wt%
PH is the PBS damping fluid 95wt% of 5 ~ 8
Precision component degree of cleaning are up to 100%.
Embodiment 4
The formula of hydrocarbon cleaning liquid is:
Isomery dodecane hydrocarbon 58wt%
PF 5070 15wt%
Fatty alcohol-polyoxyethylene ether 6wt%
Propyl carbinol 21wt%
The formula of water-base cleaning liquid is:
Tripoly phosphate sodium STPP 1wt%
Sodium laurylsulfonate 1wt%
Sodium Nitrite 1wt%
PH is the PBS damping fluid 97wt% of 5 ~ 8
Precision component degree of cleaning are up to 99%.
Embodiment 5
The formula of hydrocarbon cleaning liquid is:
Isomery dodecane hydrocarbon 65wt%
PF 5070 5wt%
Fatty alcohol-polyoxyethylene ether 15wt%
Propyl carbinol 15wt%
The formula of water-base cleaning liquid is:
Tripoly phosphate sodium STPP 0.25wt%
Sodium laurylsulfonate 0.25wt%
Sodium Nitrite 0.5wt%
PH is the PBS damping fluid 99wt% of 5 ~ 8
Precision component degree of cleaning are up to 96%.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the present invention is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition, although employ some specific terms in this specification sheets, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (10)
1. a purging method for precision component, is characterized in that: comprise the following steps; Step one, draws the dust on precision component surface, then it is put into rinse bath with suction cleaner; Step 2, vacuumizes rinse bath, then with there being hydrocarbon cleaning liquid to carry out vacuum ultrasonic cleaning, then with ethanol spray, rinsing, then vacuum-drying; Step 3, carries out vacuum ultrasonic cleaning with water-base cleaning liquid, then with high purity water spray, rinsing, then vacuum-drying.
2. the purging method of precision component according to claim 1, is characterized in that: in the ultrasonic cleaning process of described step 2 and step 3, and part needs ceaselessly or discontinuously to shift one's position.
3. the purging method of precision component according to claim 1 and 2, it is characterized in that: described hydrocarbon cleaning liquid is primarily of 45 ~ 65wt% isomery dodecane hydrocarbon, 5 ~ 16wt% PF 5070,4 ~ 15wt% fatty alcohol-polyoxyethylene ether, 15 ~ 35wt% propyl carbinol forms.
4. the purging method of precision component according to claim 3, is characterized in that: described hydrocarbon cleaning liquid is primarily of 50 ~ 58wt% isomery dodecane hydrocarbon, and 10 ~ 15wt% PF 5070,6 ~ 12wt% fatty alcohol-polyoxyethylene ether, 21 ~ 28wt% propyl carbinol forms.
5. the purging method of precision component according to claim 4, is characterized in that: described hydrocarbon cleaning liquid is primarily of 54wt% isomery dodecane hydrocarbon, and 13wt% PF 5070,8wt% fatty alcohol-polyoxyethylene ether, 25wt% propyl carbinol forms.
6. the purging method of precision component according to claim 1 and 2, is characterized in that: described water-base cleaning liquid is the PBS damping fluid composition of 5 ~ 8 primarily of 0.25 ~ 2.5wt% tripoly phosphate sodium STPP, 0.25 ~ 2.5wt% sodium laurylsulfonate, 0.5 ~ 5wt% Sodium Nitrite and 90 ~ 99wt%pH.
7. the purging method of precision component according to claim 6, is characterized in that: described water-base cleaning liquid is the PBS damping fluid composition of 5 ~ 8 primarily of 1 ~ 2wt% tripoly phosphate sodium STPP, 1 ~ 2wt% sodium laurylsulfonate, 1 ~ 3wt% Sodium Nitrite and 93 ~ 97wt%pH.
8. the purging method of precision component according to claim 7, is characterized in that: described water-base cleaning liquid is the PBS damping fluid composition of 5 ~ 8 primarily of 1.5wt% tripoly phosphate sodium STPP, 1.5wt% sodium laurylsulfonate, 2wt% Sodium Nitrite and 95wt%pH.
9. a washing unit for precision component, is characterized in that: comprise set gradually dust suction chamber, organic wash room, ethanol spray rinsing room, the first vacuum drying chamber, inorganics purge chamber, high purity water spray rinsing room, the second vacuum drying chamber; Suction cleaner is provided with in described dust suction chamber; Described organic wash room is connected with vacuum pump with inorganics purge chamber, ultrasonic cleaner is provided with in it, be placed with hydrocarbon cleaning liquid and water-base cleaning liquid respectively in described ultrasonic cleaner, below described ultrasonic cleaner, be provided with ultrasonic generator.
10. the purging method of precision component according to claim 9, it is characterized in that: the washing unit of described precision component also comprises fixture, described fixture is stainless steel hook or long filament suspender belt, for clamping and shifting precision component, and in described organic wash room and described inorganics purge chamber, described fixture can drive described precision component top to bottom, left and right, front and rear move or rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022759.0A CN105568308A (en) | 2015-12-28 | 2015-12-28 | Cleaning method and device for precision parts |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022759.0A CN105568308A (en) | 2015-12-28 | 2015-12-28 | Cleaning method and device for precision parts |
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| CN105568308A true CN105568308A (en) | 2016-05-11 |
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| CN201511022759.0A Pending CN105568308A (en) | 2015-12-28 | 2015-12-28 | Cleaning method and device for precision parts |
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Cited By (6)
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| CN109351726A (en) * | 2018-11-01 | 2019-02-19 | 深圳市鑫承诺环保产业股份有限公司 | Cleaning method for small-bore miniature storage tank |
| CN109880987A (en) * | 2019-01-24 | 2019-06-14 | 嘉善平盛热处理有限公司 | A kind of martensitic stain less steel machine components heat-treatment processing process |
| CN113058929A (en) * | 2021-03-09 | 2021-07-02 | 苏州市元让超声科技有限公司 | Full-automatic vacuum ultrasonic cleaning device |
| CN113287611A (en) * | 2021-02-24 | 2021-08-24 | 杭州西子卫生消毒药械有限公司 | Disinfectant wet tissue and preparation method thereof |
| CN114472350A (en) * | 2022-01-24 | 2022-05-13 | 广东金仕伦清洗技术有限公司 | Method for cleaning bottom of flip chip package |
| CN115537832A (en) * | 2022-08-31 | 2022-12-30 | 深圳市鑫承诺环保产业股份有限公司 | Hydrocarbon cleaning agent for cleaning surface of metal piece and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109351726A (en) * | 2018-11-01 | 2019-02-19 | 深圳市鑫承诺环保产业股份有限公司 | Cleaning method for small-bore miniature storage tank |
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| CN109880987A (en) * | 2019-01-24 | 2019-06-14 | 嘉善平盛热处理有限公司 | A kind of martensitic stain less steel machine components heat-treatment processing process |
| CN113287611A (en) * | 2021-02-24 | 2021-08-24 | 杭州西子卫生消毒药械有限公司 | Disinfectant wet tissue and preparation method thereof |
| CN113058929A (en) * | 2021-03-09 | 2021-07-02 | 苏州市元让超声科技有限公司 | Full-automatic vacuum ultrasonic cleaning device |
| CN114472350A (en) * | 2022-01-24 | 2022-05-13 | 广东金仕伦清洗技术有限公司 | Method for cleaning bottom of flip chip package |
| CN115537832A (en) * | 2022-08-31 | 2022-12-30 | 深圳市鑫承诺环保产业股份有限公司 | Hydrocarbon cleaning agent for cleaning surface of metal piece and preparation method thereof |
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