CN109321378A - A kind of chemical and cleaning method of aluminum piston area carbon - Google Patents
A kind of chemical and cleaning method of aluminum piston area carbon Download PDFInfo
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- CN109321378A CN109321378A CN201811301107.4A CN201811301107A CN109321378A CN 109321378 A CN109321378 A CN 109321378A CN 201811301107 A CN201811301107 A CN 201811301107A CN 109321378 A CN109321378 A CN 109321378A
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
-
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/06—Phosphates, including polyphosphates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/08—Silicates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/008—Polymeric surface-active agents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/29—Sulfates of polyoxyalkylene ethers
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
Abstract
The invention belongs to mechanical engineering fields, more particularly to the chemical and cleaning method of a kind of aluminum piston area carbon, chemical of the invention, in terms of mass fraction, raw material includes following part, 30~40 parts of alkyl phenol polyoxyethylene ether (TX-10), 25~30 parts of fatty alcohol polyoxyethylene ether (AEO-9), 25~30 parts of sodium n-alkylbenzenesulfonate (LAS), 15~20 parts of fatty alcohol-ether sodium sulfate (AES), 12~15 parts of sodium metasilicate, 7~10 parts of sodium tripolyphosphate, 500~600 parts of water；When cleaning, part to be cleaned is put into the chemical and is cleaned by ultrasonic, cleaning temperature is 50~60 DEG C, and the ultrasonic cleaning time is 2.5~3.5h, and power is 600~650W；Relative to existing chemical cleaning agent prescription, cleaning agent formula cleaning efficiency of the invention is better than the cleaning efficiency of existing formula, and cleans to aluminum piston area carbon very thorough.
Description
Technical field
The invention belongs to mechanical engineering fields, and in particular to a kind of chemical of aluminum piston area carbon and cleaning
Method.
Background technique
Currently, rapid growth trend is presented in China's car ownership, waste and old engine " eats it for many enterprises
It is tasteless, hesitate to discard ", and realize that remanufacturing for engine is the effective way built a resource-conserving and environment-friendly society.
European car industry development shows that remanufacturing for engine is a kind of effective strategy, can promote Engine Industry
Sustainable development, it can reduce the energy and resource consumption significantly and protect environment.In general, the automobile production chamber of commerce mentions for new car
For the guarantee period, if engine, which is under warranty, occurs catastrophe failure, producer can provide a completely new engine for car owner, to more
The engine changed, which remanufacture, to convert heat into mechanical energy as engine to avoid unnecessary waste, piston
Core part, be engine reconstruction important component, and the removing of aluminum piston area carbon be piston recycle
Biggest obstacle, therefore cleaning piston area carbon is then that engine reproduces essential link.In addition, finding automobile in investigation
The aluminum piston of numerous carbon distributions is directly changed discarding in actual operation by maintenance system after sale, is not only caused to car owner huge
Huge economic loss also exacerbates social waste, therefore the recycling for improving carbon distribution aluminum piston is significant.
Metal cleaning formulation mainly has organic solvent formula, alkaline solution formula and water base metal cleaning agent to be formulated three kinds.
Wherein organic solvent is fine to the cleaning effect of greasy dirt, but most of organic solvents all have volatile and incendive disadvantage,
There are biggish security risk, organic solvent mostly all have certain toxicity, for a long time contact can make human body to a certain degree by
To damage, and higher cost is cleaned, waste liquid is more intractable, is not suitable for a large amount of in the industrial production use.Alkaline cleaner effect
Fruit is good, at low cost, and is widely used, but has stronger corrosivity to operator's skin.Water base metal cleaning agent it is clear
It is also lower to wash efficiency, cleaning effect is ideal not enough.Therefore it needs to develop the cleaning that a kind of cleaning efficiency is high and cleaning effect is good
Agent.
Summary of the invention
In order to overcome the above-mentioned problems of the prior art, the purpose of the present invention is to provide a kind of aluminum piston surface areas
The chemical and cleaning method of carbon, chemical cleaning rate through the invention is high, and cleaning effect is good.
The purpose of the present invention is achieved through the following technical solutions:
A kind of chemical of aluminum piston area carbon, in terms of mass fraction, raw material includes following component:
30~40 parts of alkyl phenol polyoxyethylene ether, 25~30 parts of fatty alcohol polyoxyethylene ether, sodium n-alkylbenzenesulfonate 25
~30 parts, 15~20 parts of fatty alcohol-ether sodium sulfate, 12~15 parts of sodium metasilicate, 7~10 parts of sodium tripolyphosphate, 500~600 parts of water.
In terms of mass fraction, raw material includes following component:
35 parts of alkyl phenol polyoxyethylene ether, 28 parts of fatty alcohol polyoxyethylene ether, 27 parts of sodium n-alkylbenzenesulfonate, fatty alcohol
18 parts of ether sodium sulfate, 13 parts of sodium metasilicate, 8 parts of sodium tripolyphosphate, 550 parts of water.
In terms of mass fraction, raw material includes following component:
40 parts of alkyl phenol polyoxyethylene ether, 30 parts of fatty alcohol polyoxyethylene ether, 30 parts of sodium n-alkylbenzenesulfonate, fatty alcohol
20 parts of ether sodium sulfate, 15 parts of sodium metasilicate, 10 parts of sodium tripolyphosphate, 600 parts of water.
A kind of cleaning method of aluminum piston area carbon, is carried out by above-mentioned chemical.
Detailed process is as follows for the cleaning method:
Part to be cleaned is put into the chemical and is cleaned by ultrasonic, cleaning temperature is 50~60 DEG C,
The ultrasonic cleaning time is 2.5~3.5h, and power is 600~650W.
It is cleaned by ultrasonic using interval method, specifically, ultrasonic cleaning is divided into several cleaning frequencies, each cleaning week
Phase is 15 minutes, and in each cleaning frequency, preceding 10min impregnates part, and rear 5min is cleaned by ultrasonic part.
Compared with prior art, the invention has the following beneficial technical effects:
Used in the chemical of aluminum piston area carbon of the present invention fatty alcohol polyoxyethylene ether (alias AEO-9,
HLB value is 13.5, and cloud point is 80-88 DEG C) it is a kind of nonionic surfactant, there is excellent infiltration, profit to metal contamination
Wet, emulsification and washing effect, biological degradability is good, while it also has low bubble, reaches good cost performance, each with other
The surfactant compounds such as anionoid, nonionic are in use, have outstanding synergistic effect, so selecting it as water base clear
One of surfactant in lotion；Alkyl phenol polyoxyethylene ether (alias TX-10, HLB value 12.5, cloud point 61-67 simultaneously
DEG C), there is wetting well, emulsification, dispersion and dirt-removing power to the dirt of metal hard surface, possess good hard water resistance and anti-
Antistatic property；Surfactant of the invention uses above two surfactant compound, compares for single surfactant,
The surfactant properties being used in compounding are more preferable, can reduce the use total amount of surfactant, and can be reduced the dirt to environment
Dye.Sodium n-alkylbenzenesulfonate (LAS) anionic surfactant is a kind of mixture, and main component is linear alkyl benzene sulfonic acid
Sodium contains the auxiliary elements such as some increasing net agents, bleaching agent, fluorescent whitening agent, corrosion inhibitor, foam modifier, enzyme.Fatty alcohol ether
Sodium sulphate (AES) is soluble easily in water, has excellent decontamination, emulsification, foam performance and hard water resistance performance, mild washing property is not
Skin can be damaged.Sodium metasilicate and sodium tripolyphosphate in the present invention, use as metal inhibitor and cleaning additive, and utilize it
Synergistic effect improve cleaning effect.In terms of the selection of reagent, low cost, non-hazardous human body, pollution-free is mainly followed
Environment, efficient, high quality principle.
The cleaning method of aluminum piston area carbon of the invention, due to being carried out using chemical of the invention, by
The beneficial effect of aforementioned present invention chemical is it is found that the clear rate of cleaning method prepared by the present invention is better than the clear of existing formula
Rate is washed, and aluminum piston area carbon is cleaned very thorough.
Further, in cleaning method of the invention, first part to be cleaned is put into chemical of the invention into
Then row impregnates to be cleaned by ultrasonic again, cleaning temperature is 50~60 DEG C, and ultrasonic cleaning power is 600~650W, time
For 2.5~3.5h, aluminum piston area carbon can be cleaned very thorough.It is because of are as follows: (1) ultrasonic wave using ultrasonic cleaning
The workpiece of cleaning does not have the limitation of type, and since cavitation bubble can occur in very narrow region, this more to have
Conducive to irregular to shape, structure is complicated and has the workpiece of counterbore clean without dead angle；(2) since ultrasonic cleaning is easy system
At the cleaning equipment of meet demand, so automation and large-scale use may be implemented in ultrasonic cleaning, and then reduce labour
Use and reduce labor intensity.Meanwhile there can be the cleaning medium of rotten candle effect to avoid worker exposure, and then avoid this kind of
Clean damage of the medium to human body；(3) ultrasonic cleaning has that the time is short, speed is fast, at low cost, cleaning effect is good and cost performance
High feature.
Further, it is contemplated that the case where factory's batch cleans and cleans cost is cleaned by ultrasonic, phase using interval method
Than supersonic wave cleaning machine service life can be extended in ultrasound always in ultrasonic cleaning process, have effect at low cost good
The advantages of, aluminum piston area carbon cleans the more thorough of ground.
Detailed description of the invention
Fig. 1 is to clean 15 minutes rear piston surface carbon distribution images using chemical cleaning agent prescription of the present invention；
Fig. 2 handles the piston-top surface carbon distribution that picture calculates using matlab for Fig. 1 piston face and retains spirogram；
Fig. 3 is to clean 105 minutes rear piston surface carbon distribution images using chemical cleaning agent prescription of the present invention；
Fig. 4 handles the piston-top surface carbon distribution that picture calculates using matlab for Fig. 3 piston face and retains spirogram；
Fig. 5 is to clean 135 minutes rear piston surface carbon distribution images using chemical cleaning agent prescription of the present invention；
Fig. 6 handles the piston-top surface carbon distribution that picture calculates using matlab for Fig. 5 piston face and retains spirogram；
Fig. 7 is to clean 165 minutes rear piston surface carbon distributions using chemical cleaning agent prescription of the present invention to retain spirogram；
Fig. 8 is the piston-top surface carbon distribution image that Fig. 7 piston face handles that picture is calculated using matlab；
Fig. 9 is to clean 180 minutes rear piston surface carbon distribution images using chemical cleaning agent prescription of the present invention；
Figure 10 handles the piston-top surface carbon distribution that picture calculates using matlab for Fig. 7 piston face and retains spirogram.
Specific embodiment
It is next with reference to the accompanying drawings and examples that the present invention is further illustrated.
The chemical of aluminum piston area carbon of the invention, in terms of mass fraction, raw material includes following component:
30~40 parts of alkyl phenol polyoxyethylene ether (TX-10), 25~30 parts of fatty alcohol polyoxyethylene ether (AEO-9), straight chain
25~30 parts of sodium alkyl benzene sulfonate (LAS), 15~20 parts of fatty alcohol-ether sodium sulfate (AES), 12~15 parts of sodium metasilicate, tripolyphosphate
7~10 parts of sodium, 500~600 parts of water.
In the preparation, process is as follows for the chemical of aluminum piston area carbon of the invention:
In terms of mass fraction, by 30~40 parts of TX-10,25~30 parts of AEO-9,12~15 parts of sodium metasilicate, 7~10
The sodium tripolyphosphate of part, LAS and 15~20 of 25~30 parts part of AES are added in 500~600 parts of water, are uniformly mixing to obtain
The chemical of the aluminum piston area carbon.
The cleaning method of aluminum piston area carbon of the invention, is carried out by above-mentioned chemical.
As the preferred embodiment of the invention, the detailed process of cleaning method are as follows: part to be cleaned is put into describedization
It learns and is cleaned by ultrasonic in cleaning agent, cleaning temperature is 50~60 DEG C, and the ultrasonic cleaning time is 2.5~3.5h, and power is
600~650W.
As the preferred embodiment of the invention, it is cleaned by ultrasonic using interval method, specifically, ultrasonic cleaning is divided into
Several cleaning frequencies, each cleaning frequency are 15 minutes, in each cleaning frequency, are impregnated to part within first 10 minutes, rear 5
Minute is cleaned by ultrasonic part.
To obtain preferable ultrasonic cleaning parameters, referring to Fig.1~Figure 10, using chemical cleaning agent prescription of the invention to aluminium
Top piston is cleaned, and the photo of different time sections carbon cleaning is recorded, and assesses remaining carbon distribution using matlab image procossing
Amount:
(1) five experiments are carried out in total, and experimental subjects is the aluminium top piston of the same removal piston ring；
(2) experiment is utilized respectively chemical of the invention every time, and is heated to 50 DEG C simultaneously using supersonic wave cleaning machine
Piston is first soaked in inventive formulation cleaning solution by constant temperature；Cleaning process is divided into several cleaning frequencies, each cleaning week
Phase is 15 minutes, in this 15 minutes, is impregnated to piston within first 10 minutes, and latter 5 minutes using ultrasonic cleaning；
(3) it (generally every one or several cleaning frequencies, is carried out after the cleaning frequency subsequent at regular intervals
Calculating operation) using matlab processing picture, piston-top surface carbon distribution amount retained is calculated, finally determines suitable scavenging period.
Embodiment 1
In the present embodiment, in terms of mass fraction, by 35 parts of TX-10,28 parts of AEO-9,13 parts of sodium metasilicate, 8 part three
Polyphosphate sodium, LAS and 18 of 27 parts part of AES are added in 550 parts of water, stir evenly and obtain aluminum piston area carbon
Chemical；
Piston to be cleaned is put into the chemical prepared and is cleaned by ultrasonic using interval method, is cleaned by ultrasonic
55 DEG C of temperature, ultrasonic cleaning power is 600W, and the time is 3 hours, and after the completion of cleaning, in 180min, carbon distribution amount retained is
The 1.93% of carbon distribution amount retained when 15min, the blocky carbon distribution for being attached to piston face is cleaned up completely substantially (such as Fig. 9 and
10)。
Embodiment 2
In the present embodiment, in terms of mass fraction, by 35 parts of TX-10,28 parts of AEO-9,13 parts of sodium metasilicate, 8 part three
Polyphosphate sodium, LAS and 18 of 27 parts part of AES are added in 550 parts of water, stir evenly and obtain aluminum piston area carbon
Chemical；
Piston to be cleaned is put into always on ultrasound in the chemical prepared to be cleaned by ultrasonic, is cleaned by ultrasonic
Temperature is 55 DEG C, and ultrasonic cleaning power is 600W, and the time is 50 minutes 2 hours, and after the completion of cleaning, piston face carbon deposition quantity is
The 1.67% of carbon distribution amount retained when 15min substantially cleans up the blocky carbon distribution for being attached to piston face completely.
Embodiment 3
In the present embodiment, in terms of mass fraction, by 30 parts of TX-10,25 parts of AEO-9,12 parts of sodium metasilicate, 7 part three
Polyphosphate sodium, LAS and 15 of 25 parts part of AES are added in 500 parts of water, stir evenly and obtain aluminum piston area carbon
Chemical；
Piston to be cleaned is put into the chemical prepared and is cleaned by ultrasonic using interval method, ultrasonic cleaning temperature
Degree is 50 DEG C, and ultrasonic cleaning power is 600W, and the time is 2.5 hours, after the completion of cleaning, when piston face carbon deposition quantity is 15min
The 2.66% of carbon distribution amount retained substantially cleans up the blocky carbon distribution for being attached to piston face completely.
Embodiment 4
In the present embodiment, in terms of mass fraction, by 40 parts of TX-10,30 parts of AEO-9,15 parts of sodium metasilicate, 10 part three
Polyphosphate sodium, LAS and 20 of 30 parts part of AES are added in 600 parts of water, stir evenly and obtain aluminum piston area carbon
Chemical；
Piston to be cleaned is put into the chemical prepared and is cleaned by ultrasonic using interval method, ultrasonic cleaning temperature
Degree is 60 DEG C, and ultrasonic cleaning power is 600W, and total scavenging period is 3.5 hours, and after the completion of cleaning, piston face carbon deposition quantity is
The 2.19% of carbon distribution amount retained when 15min substantially cleans up the blocky carbon distribution for being attached to piston face completely.
Embodiment tests two kinds of cleaning processes for remanufacturing Piston Carbon cleaning process in piston, according to experiment
As a result the Piston Carbon cleaning appraisement system based on matlab software has been formulated, it can be deduced that 1 cleaning effect of example is better than reality
Example 3 and example 4, wherein the formula of the chemical in example 1 is optimized on the basis of formula in example 3 and example 4
Arrive, and the cleaning effect of example 1 and example 2 is not much different, from energy consumption cost, cleaning efficiency, cleaning effect each side
Face is analyzed, and the cleaning process of ultrasonic cleaning is the preferable cleaning process in this experiment after aqueous cleaning agent impregnates.
Claims (6)
1. a kind of chemical of aluminum piston area carbon, which is characterized in that in terms of mass fraction, aluminum piston surface area
The raw material of the chemical of carbon includes following component:
30~40 parts of alkyl phenol polyoxyethylene ether, 25~30 parts of fatty alcohol polyoxyethylene ether, sodium n-alkylbenzenesulfonate 25~30
Part, 15~20 parts of fatty alcohol-ether sodium sulfate, 12~15 parts of sodium metasilicate, 7~10 parts of sodium tripolyphosphate, 500~600 parts of water.
2. a kind of chemical of aluminum piston area carbon according to claim 1, which is characterized in that with mass parts
Number meter, raw material includes following component:
35 parts of alkyl phenol polyoxyethylene ether, 28 parts of fatty alcohol polyoxyethylene ether, 27 parts of sodium n-alkylbenzenesulfonate, fatty alcohol ether sulphur
18 parts of sour sodium, 13 parts of sodium metasilicate, 8 parts of sodium tripolyphosphate, 550 parts of water.
3. a kind of chemical of aluminum piston area carbon according to claim 1, which is characterized in that with mass parts
Number meter, raw material includes following component:
40 parts of alkyl phenol polyoxyethylene ether, 30 parts of fatty alcohol polyoxyethylene ether, 30 parts of sodium n-alkylbenzenesulfonate, fatty alcohol ether sulphur
20 parts of sour sodium, 15 parts of sodium metasilicate, 10 parts of sodium tripolyphosphate, 600 parts of water.
4. a kind of cleaning method of aluminum piston area carbon, which is characterized in that by described in claims 1 to 3 any one
Aluminum piston area carbon chemical carry out.
5. a kind of cleaning method of aluminum piston area carbon according to claim 4, which is characterized in that the cleaning side
Detailed process is as follows for method:
Part to be cleaned is put into the chemical and is cleaned by ultrasonic, cleaning temperature is 50~60 DEG C, ultrasound
Scavenging period is 2.5~3.5h, and power is 600~650W.
6. a kind of cleaning method of aluminum piston area carbon according to claim 5, which is characterized in that use interval method
It is cleaned by ultrasonic, specifically, ultrasonic cleaning is divided into several cleaning frequencies, each cleaning frequency is 15 minutes, Mei Geqing
It washes in the period, preceding 10min impregnates part, and rear 5min is cleaned by ultrasonic part.
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| CN201811301107.4A CN109321378A (en) | 2018-11-02 | 2018-11-02 | A kind of chemical and cleaning method of aluminum piston area carbon |
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| CN201811301107.4A CN109321378A (en) | 2018-11-02 | 2018-11-02 | A kind of chemical and cleaning method of aluminum piston area carbon |
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| CN103184460A (en) * | 2013-03-11 | 2013-07-03 | 江苏云瀚股份有限公司 | Preparation method for cleaning agent for high-temperature carbon deposit in combustion chamber of all- aluminium engine |
| CN105969545A (en) * | 2016-05-27 | 2016-09-28 | 北京科宇泰技术开发有限公司 | Aircraft engine cleansing agent and preparing method thereof |
| CN108004046A (en) * | 2017-12-21 | 2018-05-08 | 苏州赛源微电子有限公司 | A kind of method for being cleaned by ultrasonic integrated circuit plate |
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