CN107470253A - Superfinishing cleaning before composite component PVD plated films - Google Patents
Superfinishing cleaning before composite component PVD plated films Download PDFInfo
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- CN107470253A CN107470253A CN201710581336.5A CN201710581336A CN107470253A CN 107470253 A CN107470253 A CN 107470253A CN 201710581336 A CN201710581336 A CN 201710581336A CN 107470253 A CN107470253 A CN 107470253A
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- vacuum
- cleaning
- water
- superfinishing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses superfinishing cleaning before a kind of composite component PVD plated films, include vacuum ultrasonic cleaning, vacuum ultrasonic rinsing, vacuum cuts water cleaning, vacuum cuts the hydrocarbon ultrasonic cleaning of liquid, vacuum, wide slow moving water-removal, steam bath are washed, is dried in vacuo and the cleaning step of plasma, can be thoroughly dirty in aqua, spot and crack by cutting of showing of product, help to ensure postorder PVD plating film qualities.
Description
Technical field
The invention belongs to cleaning technique, and in particular to a kind of cleaning.
Background technology
At present, the surface wax of the composite component such as ceramic component, glass assembly, metal plastic component, glue, oil and crevice place are dirty
Dirt cleaning technological process be：Ultrasonic wave aqueous-base cleaning → ultrasonic pure water rinsing → ultrahigh vacuum processing → ultrasonic wave is water base clear
Wash → ultrasonic pure water rinsing → ultrahigh vacuum processing → ultrasonic wave aqueous-base cleaning → ultrasonic pure water rinsing → ultrahigh vacuum at
Reason → ultrasonic wave aqueous-base cleaning → ultrasonic pure water rinsing → vacuum drying.Cleaning agent needed for cleaning is environment protection water-based cleaning
Agent, its main constituents are surfactant, auxiliary agent or DI (ion) water etc..By the emulsification of surfactant, infiltration, clear
The effect such as property and soda acid chemical reaction such as wash, cleaned by multiple tracks pure water, be finally reached the purpose on cleaning surface；And pass through
Ultrahigh vacuum processing, to the dirty extraction of component crack etc., then is cleaned up.
Shortcoming be present in existing cleaning：1st, PVD plated films being carried out after technique cleaning, quality is unstable, ineffective,
Acceptance rate is about 50~80%.2nd, cleaning agent replacement frequency is fast, and surfactant can not recycle, and has sewage discharge, sewage
Intractability is big, and cost is high.3rd, cleaning agent is contacted for a long time, body can be harmful to.
The content of the invention
In order to solve the defects of prior art is present, it is an object of the invention to provide a kind of cleaning performance is good, process is smart
Superfinishing cleaning before the high composite component PVD plated films of letter, acceptance rate.
Realizing the technical scheme that above-mentioned purpose uses is：Superfinishing cleaning before a kind of composite component PVD plated films, includes
Vacuum ultrasonic cleaning, vacuum ultrasonic rinsing, vacuum cuts water cleaning, vacuum cuts the hydrocarbon ultrasonic cleaning of liquid, vacuum, pulls slowly
Water, steam bath washes, is dried in vacuo and the cleaning step of plasma, each mutually arranged combination application of cleaning step.
Further, the cleaning step also includes spray+aeration, and 90~240s of spray in DI water is first placed in workpiece,
Then it is aerated 120~360s under conditions of vacuum is -100Kpa.
The cleaning step is also super dry including vacuum, and workpiece is in vacuum 5 × 10-3~7 × 10-3Under conditions of pa, dry
600~1800s.
The vacuum cuts water cleaning combination vacuum and cuts liquid cleaning, and combination vacuum drying is washed in the steam bath, and the vacuum surpasses
Sound wave rinsing combination wide slow moving water-removal.
The vacuum cuts water cleaning combination vacuum and cuts liquid cleaning, first puts workpiece under conditions of vacuum is -80Kpa
20~70Hz of throwing above and below inside aqua (G-100W) is cut in hydrocarbon, 180~420s of water is cut, product is shown dirty, water stain
And cleaning agent etc. enters line replacement and departs from layering, product surface is cut aqua covering, and then workpiece is in the bar that vacuum is -100Kpa
Under part, it is placed in vacuum and cuts 20~70Hz of throwing above and below inside liquid, vacuum cuts 180~420s of liquid, and hydrocarbon aqua of cutting contains CnH2n+2
Saturated aliphatic hydrocarbon and surfactant.
The steam bath wash combination vacuum drying, workpiece vacuum be -90Kpa under conditions of, be placed in temperature 110~
20~50s is washed in bath inside 130 DEG C of hydrocarbon vapors (G-100D), then vacuum be -100~-102Kpa and temperature 110~
Under conditions of 130 DEG C, 400~600s is dried.
Workpiece, is first placed in by the vacuum ultrasonic rinsing combination wide slow moving water-removal under conditions of super wave sound frequency 40KHz
20~70Hz of throwing up and down inside DI water, rinses 180~420s, after having been rinsed inside last one of DI water slowly hand basket with up to
To wide slow moving water-removal effect.
The vacuum ultrasonic cleaning, workpiece are placed under conditions of vacuum is -40Kpa and super wave sound frequency 40KHz
20~70Hz of throwing up and down inside environment-friendly cleaning agent (GCL-6015), cleans 180~420s, wetting to greasy dirt, wax, glue etc.,
Emulsification, cleaning action, the environment-friendly cleaning agent contain surfactant and auxiliary agent.
The hydrocarbon vacuum ultrasonic cleaning of vacuum, workpiece is in the bar that vacuum is -90Kpa and ultrasonic frequency 40KHz
Under part, 20~60Hz of throwing up and down is placed in inside agent for carbon hydrogen detergent (G-100D), 180~420s is cleaned, is cut what product showed
Dirty in aqua, spot and crack washes, and the agent for carbon hydrogen detergent contains decane and alcohol ether.
The cleaning also configures circulation Distallation systm, is run always under auto state and is distilled to recover agent for carbon hydrogen detergent,
To ensure the cleanliness factor of agent for carbon hydrogen detergent, in favor of ensureing quality, energy saving resources, cost is reduced.
Compared with prior art, by wetting of the environmentally friendly environment-friendly cleaning agent (GCL-6015) to greasy dirt, wax, glue etc., emulsification,
Cleaning action, enter back into and cut aqua groove (G-100W), dirty, water stain and cleaning agent that product shows etc. is entered into line replacement departs from
Layering (thing separated again lower floor), product surface is cut aqua covering, then into the hydrocarbon vacuum ultrasonic of vacuum
(G-100D) and high vacuum dry repeat function are cleaned, and passes through the super dry effect of one of vacuum again, thoroughly shows product
That cuts in aqua, spot and crack dirty washes.Afterwards again by vacuum ultrasonic cleaning (GCL-6015), vacuum ultrasonic
Ripple rinsing (DI water), vacuum drying thoroughly clean up on surface, and last clean product enters back into plasma cleaning, more helps
In guarantee postorder PVD plating film qualities.
Implementing the present invention has advantages below：
1st, cleaning agent is agent for carbon hydrogen detergent, and boiling point height (172 DEG C or so), volatilization is slow, and agent for carbon hydrogen detergent is harmless, right
Environment influence is minimum, and cleaning agent has strong permeability and cleaning force, has special effect to the crack of sub-assembly, and PVD is plated after cleaning
Film quality is improved and stably, acceptance rate is greatly improved to more than 97%.
2nd, can Full-automatic circulation be distilled to recover utilize, typically only need to add, no discharging of waste liquid, cost substantially reduces, full mistake
The process cleaned in journey using water is few, and does Sewage treatment utilization, and it is few to produce waste liquid amount.
Embodiment
It is the step of superfinishing cleaning before the composite component PVD plated films of preferred embodiment：
1st, vacuum ultrasonic is cleaned.Workpiece is placed in ring under conditions of vacuum is -40Kpa and super wave sound frequency 40KHz
20~70Hz of throwing up and down is protected inside cleaning agent (GCL-6015), cleans 180~420s, to the soaking of greasy dirt, wax, glue etc., breast
Change, cleaning action.Environment-friendly cleaning agent GCL-6015, main component are surfactant and auxiliary agent.It is hydrocarbon to cut aqua G-100W, master
Composition is wanted to contain CnH2n+2Saturated chain hydro carbons cleaning agent and surfactant.
2nd, spray+aeration.90~240s of spray in DI water is first placed in workpiece, then in the bar that vacuum is -100Kpa
120~360s is aerated under part.
3rd, vacuum ultrasonic rinses.Workpiece is placed in DI under conditions of vacuum is -40Kpa and super wave sound frequency 40KHz
20~70Hz of throwing above and below inside water, rinses 180~420s.
4th, vacuum cuts water vacuum and cuts liquid.First workpiece is placed under conditions of vacuum is -80Kpa and hydrocarbon cuts aqua (G-
100W) the inside throwing 20~70Hz up and down, cuts 180~420s of water, and dirty, water stain and cleaning agent that product shows etc. is put
Disengaging layering is changed, product surface is cut aqua covering.Then workpiece is placed in vacuum and cut under conditions of vacuum is -100Kpa
20~70Hz of throwing, vacuum cut 180~420s of liquid up and down inside liquid.
5th, the hydrocarbon vacuum ultrasonic cleaning of vacuum.Workpiece is in the condition that vacuum is -90Kpa and ultrasonic frequency 40KHz
Under, 20~60Hz of throwing up and down is placed in inside agent for carbon hydrogen detergent (G-100D), 180~420s is cleaned, water is cut by what product showed
Dirty in agent, spot and crack washes.Configuration circulation Distallation systm, is distilled to recover agent for carbon hydrogen detergent always, to ensure
The cleanliness factor of agent for carbon hydrogen detergent.
6th, combination vacuum drying is washed in steam bath.Workpiece is placed in temperature 110~130 under conditions of vacuum is -90Kpa
20~50s is washed in bath inside DEG C hydrocarbon vapor (G-100D), then in the condition that vacuum is 110~130 DEG C of -100Kpa and temperature
Under, dry 420~600s.Agent for carbon hydrogen detergent G-100D, main component contain decane and alcohol ether.Hydrocarbon cleaning is distilled to recover always
Agent, in favor of ensureing quality, energy saving resources, reduce cost.
7th, vacuum is super dry.Workpiece is in vacuum 5 × 10-3pa、6×10-3Pa or 7 × 10-3Under conditions of pa, dry 600~
1800s。
8th, secondary vacuum ultrasonic wave cleans.Workpiece is put under conditions of vacuum is -40Kpa and super wave sound frequency 40KHz
20~70Hz of throwing above and below environment-friendly cleaning agent (GCL-6015) the inside, cleans 180~420s.
9th, vacuum ultrasonic rinsing and wide slow moving water-removal.Workpiece is first placed in DI water under conditions of super wave sound frequency 40KHz
20~70Hz of throwing above and below the inside, rinses 180~420s.Then under conditions of super wave sound frequency 40KHz, it is placed in inside DI water
20~70Hz of upper and lower throwing, rear slowly hand basket has finally been rinsed together to reach wide slow moving water-removal effect.
10th, it is dried in vacuo.Workpiece is under conditions of vacuum is -100Kpa, left and right 20~40Hz of throwing, dry 420~
600s。
11st, plasma cleaning.Workpiece cleans 180~360s in volume 100~400ml plasma gas.
It is the step of superfinishing cleaning before the composite component PVD plated films of most preferred embodiment：
1st, a vacuum ultrasonic cleaning.Workpiece is put under conditions of vacuum is -40Kpa and super wave sound frequency 40KHz
20~70Hz of throwing above and below environment-friendly cleaning agent (GCL-6015) the inside, cleans 180~420s, to the profit of greasy dirt, wax, glue etc.
Wet, emulsification, cleaning action.Environment-friendly cleaning agent GCL-6015, main component are surfactant and auxiliary agent.It is hydrocarbon to cut aqua G-
100W, main component contain CnH2n+2Saturated aliphatic hydrocarbon cleaning agent and surfactant.
2nd, spray+aeration.90~240s of spray in DI water is first placed in workpiece, then in the bar that vacuum is -100Kpa
120~360s is aerated under part.
3rd, vacuum ultrasonic rinses.Workpiece is placed in DI under conditions of vacuum is -40Kpa and super wave sound frequency 40KHz
20~70Hz of throwing above and below inside water, rinses 180~420s.
4th, vacuum cuts water.Workpiece is placed in hydrocarbon cut on aqua (G-100W) the inside under conditions of vacuum is -80Kpa
20~70Hz of lower throwing, cuts 180~420s of water, and dirty, water stain and cleaning agent that product shows etc. is entered into line replacement departs from layering,
Product surface is cut aqua covering.
5th, vacuum cuts liquid.Workpiece under conditions of vacuum is -100Kpa, be placed in vacuum cut inside liquid up and down throwing 20~
70Hz, vacuum cut 180~420s of liquid.
6th, the hydrocarbon vacuum ultrasonic cleaning of a vacuum.Workpiece is -90Kpa's and ultrasonic frequency 40KHz in vacuum
Under the conditions of, 20~60Hz of throwing up and down is placed in inside agent for carbon hydrogen detergent (G-100D), 180~420s is cleaned, product is shown
That cuts in aqua, spot and crack dirty washes.Configuration circulation Distallation systm, every the hydrocarbon vacuum ultrasonic of 8~10h vacuum
Agent for carbon hydrogen detergent is distilled to recover after ripple cleaning, to ensure the cleanliness factor of agent for carbon hydrogen detergent.
7th, combination vacuum drying is washed in primary steam bath.Workpiece vacuum be -90Kpa under conditions of, be placed in temperature 110~
20~50s is washed in bath inside 130 DEG C of hydrocarbon vapors (G-100D), is then 110~130 DEG C of -101Kpa and temperature in vacuum
Under the conditions of, dry 420~600s.Agent for carbon hydrogen detergent G-100D, main component contain CnH2n+2.Distilled back after 2~4 baths are washed
Agent for carbon hydrogen detergent is received, to utilize surplus agent for carbon hydrogen detergent, energy saving resources, reduces cost.
8th, the hydrocarbon vacuum ultrasonic cleaning of secondary vacuum.Workpiece is -90Kpa's and ultrasonic frequency 40KHz in vacuum
Under the conditions of, 20~60Hz of throwing up and down is placed in inside agent for carbon hydrogen detergent (G-100D), cleans 180~420s.
9th, combination vacuum drying is washed in indirect steam bath.Workpiece vacuum be -90Kpa under conditions of, be placed in temperature 110~
20~50s is washed in bath inside 130 DEG C of hydrocarbon vapors (G-100), is then -101Kpa and the bar of 110~130 DEG C of temperature in vacuum
Under part, 400~600s is dried.
10th, vacuum is super dry.Workpiece is in vacuum 5 × 10-3pa、6×10-3Pa or 7 × 10-3Under conditions of pa, 600 are dried
~1800s.
11st, secondary vacuum ultrasonic wave cleans.Workpiece vacuum be -40Kpa and super wave sound frequency 40KHz under conditions of,
20~70Hz of throwing up and down is placed in inside environment-friendly cleaning agent (GCL-6015), cleans 180~420s.
12nd, vacuum ultrasonic rinses.Workpiece is placed in inside DI water throwing up and down under conditions of super wave sound frequency 40KHz
20~70Hz, rinse 180~420s.
13rd, wide slow moving water-removal.Workpiece has rinsed rear slowly hand basket to reach wide slow moving water-removal effect inside last one of DI water.
14th, it is dried in vacuo.Workpiece is under conditions of vacuum is -100Kpa, left and right 20~40Hz of throwing, dry 420~
600s。
15th, plasma cleaning.Workpiece cleans 180~360s in volume 100~400ml plasma gas.
Claims (10)
1. superfinishing cleaning before a kind of composite component PVD plated films, include vacuum ultrasonic cleaning, vacuum ultrasonic rinsing,
Vacuum cuts water cleaning, vacuum cuts the hydrocarbon ultrasonic cleaning of liquid, vacuum, wide slow moving water-removal, steam bath are washed, be dried in vacuo and plasma it is clear
Wash step, it is characterised in that：The mutually arranged combination application of each cleaning step.
2. superfinishing cleaning before composite component PVD plated films according to claim 1, it is characterised in that the cleaning step is also
Including spray+aeration, 90~240s of spray in DI water is first placed in workpiece, is then exposed under conditions of vacuum is -100Kpa
120~360s of gas.
3. superfinishing cleaning before composite component PVD plated films according to claim 1, it is characterised in that the cleaning step is also
Super dry including vacuum, workpiece is in vacuum 5 × 10-3~7 × 10-3Under conditions of pa, 600~1800s is dried.
4. superfinishing cleaning before composite component PVD plated films according to claim 1, it is characterised in that the vacuum cuts water
Cleaning combination vacuum cuts liquid cleaning, and combination vacuum drying, the vacuum ultrasonic rinsing combination wide slow moving water-removal are washed in the steam bath.
5. superfinishing cleaning before composite component PVD plated films according to claim 4, it is characterised in that the vacuum cuts water
Cleaning combination vacuum cuts liquid cleaning, is first placed under conditions of vacuum is -80Kpa and hydrocarbon cuts aqua (G-100W) workpiece
The inside throwing 20~70Hz up and down, cuts 180~420s of water, and dirty, water stain and cleaning agent that product shows etc. is entered into line replacement takes off
From layering, product surface is cut aqua covering, and then workpiece is placed in vacuum and cut in liquid under conditions of vacuum is -100Kpa
20~70Hz of throwing, vacuum cut 180~420s of liquid up and down in face, and hydrocarbon aqua of cutting contains CnH2n+2 saturated aliphatic hydrocarbons and surface-active
Agent.
6. superfinishing cleaning before composite component PVD plated films according to claim 4, it is characterised in that the steam bath is washed
Combination vacuum drying, workpiece are placed in 110~130 DEG C of hydrocarbon vapors (G-100D) of temperature under conditions of vacuum is -90Kpa
20~50s is washed in the inside bath, then under conditions of vacuum is 110~130 DEG C of -100~-102Kpa and temperature, dry 400~
600s。
7. superfinishing cleaning before composite component PVD plated films according to claim 4, it is characterised in that the vacuum ultrasonic
Ripple rinsing combination wide slow moving water-removal, first by workpiece under conditions of super wave sound frequency 40KHz, be placed in inside DI water upper and lower throwing 20~
70Hz, 180~420s is rinsed, rear slowly hand basket has been rinsed inside last one of DI water to reach wide slow moving water-removal effect.
8. superfinishing cleaning before composite component PVD plated films according to claim 1, it is characterised in that the vacuum ultrasonic
It is inner to be placed in environment-friendly cleaning agent (GCL-6015) under conditions of vacuum is -40Kpa and super wave sound frequency 40KHz for cleaning, workpiece
20~70Hz of throwing above and below face, cleans 180~420s, wetting, emulsification, cleaning action to greasy dirt, wax, glue etc., the environmental protection
Cleaning agent contains surfactant and auxiliary agent.
9. superfinishing cleaning before composite component PVD plated films according to claim 1, it is characterised in that the vacuum is hydrocarbon true
Empty ultrasonic wave cleaning, workpiece are placed in agent for carbon hydrogen detergent (G- under conditions of vacuum is -90Kpa and ultrasonic frequency 40KHz
100D) the inside throwing 20~60Hz up and down, cleans 180~420s, and cutting of showing of product is dirty in aqua, spot and crack
Dirt washes, and the agent for carbon hydrogen detergent contains decane and alcohol ether.
10. superfinishing cleaning before composite component PVD plated films according to claim 1, it is characterised in that also configure circulation and steam
System is evaporated, is run always under auto state and is distilled to recover agent for carbon hydrogen detergent, to ensure the cleanliness factor of agent for carbon hydrogen detergent, in favor of protecting
Hinder quality, energy saving resources, reduce cost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710581336.5A CN107470253A (en) | 2017-07-17 | 2017-07-17 | Superfinishing cleaning before composite component PVD plated films |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710581336.5A CN107470253A (en) | 2017-07-17 | 2017-07-17 | Superfinishing cleaning before composite component PVD plated films |
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| Publication Number | Publication Date |
|---|---|
| CN107470253A true CN107470253A (en) | 2017-12-15 |
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ID=60595184
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710581336.5A Pending CN107470253A (en) | 2017-07-17 | 2017-07-17 | Superfinishing cleaning before composite component PVD plated films |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108728859A (en) * | 2018-06-28 | 2018-11-02 | 深圳市鑫承诺环保产业股份有限公司 | Metallic combination part cleaning method and cleaning equipment |
| CN108856071A (en) * | 2018-06-02 | 2018-11-23 | 山东富祥动力股份有限公司 | A kind of porous, multichannel auto parts and components cleaning system |
| CN109904478A (en) * | 2019-01-22 | 2019-06-18 | 安徽明天氢能科技股份有限公司 | A kind of fuel battery double plates process of surface treatment |
| CN112792042A (en) * | 2020-10-29 | 2021-05-14 | 深圳市鑫承诺环保产业股份有限公司 | Environment-friendly cleaning process for metal piece adhered with grinding particles |
| CN114250434A (en) * | 2021-12-24 | 2022-03-29 | 安徽纯源镀膜科技有限公司 | Pretreatment process for vacuum coating of piston ring |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856071A (en) * | 2018-06-02 | 2018-11-23 | 山东富祥动力股份有限公司 | A kind of porous, multichannel auto parts and components cleaning system |
| CN108728859A (en) * | 2018-06-28 | 2018-11-02 | 深圳市鑫承诺环保产业股份有限公司 | Metallic combination part cleaning method and cleaning equipment |
| CN109904478A (en) * | 2019-01-22 | 2019-06-18 | 安徽明天氢能科技股份有限公司 | A kind of fuel battery double plates process of surface treatment |
| CN112792042A (en) * | 2020-10-29 | 2021-05-14 | 深圳市鑫承诺环保产业股份有限公司 | Environment-friendly cleaning process for metal piece adhered with grinding particles |
| CN114250434A (en) * | 2021-12-24 | 2022-03-29 | 安徽纯源镀膜科技有限公司 | Pretreatment process for vacuum coating of piston ring |
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