CN107165858B - Guide vane of water pump wheel and its processing method with self-cleaning performance - Google Patents
Guide vane of water pump wheel and its processing method with self-cleaning performance Download PDFInfo
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- CN107165858B CN107165858B CN201710538546.6A CN201710538546A CN107165858B CN 107165858 B CN107165858 B CN 107165858B CN 201710538546 A CN201710538546 A CN 201710538546A CN 107165858 B CN107165858 B CN 107165858B
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- guide vane
- parts
- vane wheel
- water pump
- cleaning treatment
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2294—Rotors specially for centrifugal pumps with special measures for protection, e.g. against abrasion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/90—Coating; Surface treatment
Abstract
Guide vane of water pump wheel and its processing method with self-cleaning performance, be related to water pump production accessory and its processing technique field, comprising the following steps: polished guide vane wheel, impregnated, impregnated using automatically cleaning treatment fluid after guide vane wheel is dried, guide vane wheel is carried out spray disinfection, carry out it is secondary impregnate, constant temperature processing.The immersion that the present invention passes through guide vane wheel from automatically cleaning treatment fluid can carry out overlay film in guide vane wheel surface, the film can be to the collision and scraping of the hard object in fluid, prevent such fluid with friction, capability from guide vane wheel surface is damaged and being destroyed, to increase the self-cleaning performance of guide vane wheel, make erosion of the guide vane wheel in the long-term use from various fluids, reduce the degree of friction, to guarantee being normally carried out for water pump transportation work, it is beneficial to extend the service life of water pump and improves the working efficiency of water pump.
Description
Technical field:
The present invention relates to water pump production accessory and its processing technique fields, and in particular to a kind of water with self-cleaning performance
Pump guide vane wheel and its processing method.
Background technique:
Water pump is a kind of pressure to increase liquid, is allowed to the machinery of transport flow, be it is a kind of be used to move liquid or
The device of specialized fluids medium is the machinery to fluid work done.Water pump has different purposes, and different conveying liquid is situated between
Matter, the range of different flows, lift, therefore, its structure type are certainly also different, and material is also different.But all
Water pump in all there is an essential component-guide vane wheel, guide vane wheel provides mobilization force by rotating for liquid, thus
The conveying for realizing liquid, but due to the difference of water pump use environment and purpose, the fluid and liquid that water pump is conveyed also not phase
Together, wherein having many liquid and fluid that can cause to damage to water pump, since the guide vane wheel in water pump is mostly metal material or rubber
Glue material is prepared, therefore can adhere on many fluids on the wheel blade of guide vane wheel when carrying out conveying liquid or fluid
Bacterium or foreign matter, especially progress drinking water or tap water convey when, after long-time use can be in guide vane wheel
Upper many bacteriums of parasitism will cause secondary pollution to drinking water after these bacteria livings are long, can also when adhering to serious
Influence the normal work and operation of water pump.
Summary of the invention:
Technical problem to be solved by the present invention lies in provide a kind of guide vane of water pump wheel with self-cleaning performance and its add
Work method increases elimination and resolution of the guide vane wheel to bur by forming layer protecting film in guide vane of water pump wheel surface
Power reduces the contaminated degree of guide vane wheel, to guarantee water pump to reduce the time-to-live of bacterium and fungi on guide vane wheel
The clean-up performance of the water of conveying avoids secondary pollution, while also ensuring that water pump normally runs and works, and is beneficial to extend water
The service life of pump and the working efficiency for improving water pump.
The following technical solution is employed for the technical problems to be solved by the invention to realize:
Guide vane of water pump wheel and its processing method with self-cleaning performance, comprising the following steps:
1, the guide vane wheel surface processed to casting is polished, until being polishing to when surface Glabrous pierces；
2, the guide vane wheel after polishing is put into automatically cleaning treatment fluid and is impregnated, guide vane wheel is totally submerged by when immersion
It heats up in automatically cleaning treatment fluid, and to from automatically cleaning treatment fluid, when rising to 70-80 DEG C from automatically cleaning treatment fluid temperature
Stop heating, then constant temperature keeps 2-3h, when immersion, carries out once inside out to guide vane wheel at interval of 0.5h, guide vane wheel when overturning
It cannot take out from automatically cleaning treatment fluid, directly be overturn under submerged state；
3, guide vane wheel is taken out after the completion of impregnating, is suspended on ventilation, naturally dry；
4, the guide vane wheel after drying is sent in sterilization room and carries out spray disinfection, using the gold after dilution when spray disinfection
Belong to working fluid fungicide to be sterilized, 1-2h is stood after spray disinfection；
5, after the completion of after sterilizing, guide vane wheel is put into automatically cleaning treatment fluid and carries out secondary immersion, when secondary immersion from
The temperature of cleaning treatment liquid is set as 80-90 DEG C, takes out after impregnating 1-2h；
6, the guide vane wheel of taking-up being sent to progress constant temperature processing in constant-temperature house, the temperature setting of constant-temperature house is 50-60 DEG C,
It is taken out after placing 30-40min in constant-temperature house；
7, re-pasteurization carried out to guide vane wheel after taking out, when sterilization, which is used in, sterilizes identical metal working fluid for the first time and kill
Microbial inoculum and method for disinfection；
8, it takes out to dry after sterilizing and can carry out assembling use；
Being prepared from automatically cleaning treatment fluid by the component of following mass fraction described in wherein: 8-10 parts of titanium dioxide, acid
4-8 parts of catalyst, 10-16 parts of molybdenum disulfide, 3-6 parts of crosslinked resin, 5-10 parts of chromiumcopper powder, 2-4 parts of benzene sulfonic acid catalyst,
3-8 parts of ethylsiloxane, -4 parts of silica 1,1.5-3 parts of flatting silica, 0.5-2 parts of vanadium iron powder, 1-3 parts of hydroxymethyl cellulose,
0.8-2 parts of ferrous ammonium, 4-7 parts of calcium oxide, 6-10 parts of zinc borate；
It is above-mentioned to be prepared by the following method from automatically cleaning treatment fluid:
1, titanium dioxide, acid catalyst, molybdenum disulfide and crosslinked resin are added in reaction kettle and are mixed, closed after mixing
It closes feed opening and fusing stirring is carried out to it, then heat preservation stands 10-30min；
2, chromiumcopper powder, benzene sulfonic acid catalyst and ethylsiloxane are added sequentially in reaction kettle after mixing evenly again
Secondary heating stops heating, is then allowed to stand 10-30min, then heat up, stops after being warming up to 75-80 DEG C after being heated up to 60-65 DEG C
Only heat up；
3, flatting silica, vanadium iron powder, hydroxymethyl cellulose, ferrous ammonium, calcium oxide and zinc borate stirring are then sequentially added
Uniformly, it is eventually adding silica at the uniform velocity to be stirred, takes out mixed liquor after stirring 20-30min and is diluted with pure water,
Being diluted to concentration is 35-40%；
The concentration of further technology, the metal working fluid fungicide is 20-25%, and metal working fluid fungicide makes
Processing need to be modified before；
Further technology, according to the mass fraction by 20-30 parts of metal when the bactericidal agent modified processing of the metal working fluid
Working fluid fungicide is warming up to after evenly mixing with 3-5 parts of hydrogen peroxide, 1-2 parts of butyl acetate and 4-8 parts of epoxy prapanol
60-65 DEG C, then mixed liquor is poured into centrifugal blender and is stirred, natural cooling after stirring；
It is above-mentioned to cooperate improved metal working fluid fungicide be to guide vane wheel surface from clearly from automatically cleaning treatment fluid
Clean ability is promoted, and prevents bacterium, fungi and flocculation material from adhering in guide vane wheel surface, to bacterium, the fungi in trandfer fluid
Put up a resistance with flocculation material, increases the self-cleaning ability using the guide vane wheel after the effect of automatically cleaning treatment fluid；
The beneficial effects of the present invention are: the immersion that guide vane wheel passes through from automatically cleaning treatment fluid can be covered in guide vane wheel surface
Film, the film can prevent such fluid with friction, capability to guide vane wheel surface the collision and scraping of the hard object in fluid
It is damaged and is destroyed, to increase the self-cleaning performance of guide vane wheel, make guide vane wheel in the long-term use from various streams
The erosion of body, reduces the degree of friction, to guarantee being normally carried out for water pump transportation work, be beneficial to extension water pump uses the longevity
Life and the working efficiency for improving water pump.
Specific embodiment:
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific example is closed, the present invention is further explained.
Embodiment 1:
Guide vane of water pump wheel and its processing method with self-cleaning performance, comprising the following steps:
1, polish the guide vane wheel surface that processes of casting, when being polishing to smooth five burr in surface until；
2, the guide vane wheel after polishing is put into automatically cleaning treatment fluid and is impregnated, guide vane wheel is totally submerged by when immersion
It heats up in automatically cleaning treatment fluid, and to from automatically cleaning treatment fluid, when rising to 70-80 DEG C from automatically cleaning treatment fluid temperature
Stop heating, then constant temperature keeps 2-3h, when immersion, carries out once inside out to guide vane wheel at interval of 0.5h, guide vane wheel when overturning
It cannot take out from automatically cleaning treatment fluid, directly be overturn under submerged state；
3, guide vane wheel is taken out after the completion of impregnating, is suspended on ventilation, naturally dry；
4, the guide vane wheel after drying is sent in sterilization room and carries out spray disinfection, using the gold after dilution when spray disinfection
Belong to working fluid fungicide to be sterilized, 1-2h is stood after spray disinfection；
5, after the completion of after sterilizing, guide vane wheel is put into automatically cleaning treatment fluid and carries out secondary immersion, when secondary immersion from
The temperature of cleaning treatment liquid is set as 80-90 DEG C, takes out after impregnating 1-2h；
6, the guide vane wheel of taking-up being sent to progress constant temperature processing in constant-temperature house, the temperature setting of constant-temperature house is 50-60 DEG C,
It is taken out after placing 30-40min in constant-temperature house；
7, re-pasteurization carried out to guide vane wheel after taking out, when sterilization, which is used in, sterilizes identical metal working fluid for the first time and kill
Microbial inoculum and method for disinfection；
8, it takes out to dry after sterilizing and can carry out assembling use；
Being prepared from automatically cleaning treatment fluid by the component of following mass fraction described in wherein: 8-10 parts of titanium dioxide, acid
4-8 parts of catalyst, 10-16 parts of molybdenum disulfide, 3-6 parts of crosslinked resin, 5-10 parts of chromiumcopper powder, 2-4 parts of benzene sulfonic acid catalyst,
3-8 parts of ethylsiloxane, -4 parts of silica 1,1.5-3 parts of flatting silica, 0.5-2 parts of vanadium iron powder, 1-3 parts of hydroxymethyl cellulose,
0.8-2 parts of ferrous ammonium, 4-7 parts of calcium oxide, 6-10 parts of zinc borate；
It is above-mentioned to be prepared by the following method from automatically cleaning treatment fluid:
1, titanium dioxide, acid catalyst, molybdenum disulfide and crosslinked resin are added in reaction kettle and are mixed, closed after mixing
It closes feed opening and fusing stirring is carried out to it, then heat preservation stands 10-30min；
2, chromiumcopper powder, benzene sulfonic acid catalyst and ethylsiloxane are added sequentially in reaction kettle after mixing evenly again
Secondary heating stops heating, is then allowed to stand 10-30min, then heat up, stops after being warming up to 75-80 DEG C after being heated up to 60-65 DEG C
Only heat up；
3, flatting silica, vanadium iron powder, hydroxymethyl cellulose, ferrous ammonium, calcium oxide and zinc borate stirring are then sequentially added
Uniformly, it is eventually adding silica at the uniform velocity to be stirred, takes out mixed liquor after stirring 20-30min and is diluted with pure water,
Being diluted to concentration is 35-40%；
The concentration of further technology, the metal working fluid fungicide is 20-25%, and metal working fluid fungicide makes
Processing need to be modified before；
Further technology, according to the mass fraction by 20-30 parts of metal when the bactericidal agent modified processing of the metal working fluid
Working fluid fungicide is warming up to after evenly mixing with 3-5 parts of hydrogen peroxide, 1-2 parts of butyl acetate and 4-8 parts of epoxy prapanol
60-65 DEG C, then mixed liquor is poured into centrifugal blender and is stirred, natural cooling after stirring.
Embodiment 2:
Guide vane of water pump wheel and its processing method with self-cleaning performance, comprising the following steps:
1, polish the guide vane wheel surface that processes of casting, when being polishing to smooth five burr in surface until；
2, the guide vane wheel after polishing is put into automatically cleaning treatment fluid and is impregnated, guide vane wheel is totally submerged by when immersion
It heats up in automatically cleaning treatment fluid, and to from automatically cleaning treatment fluid, when rising to 70-80 DEG C from automatically cleaning treatment fluid temperature
Stop heating, then constant temperature keeps 2-3h, when immersion, carries out once inside out to guide vane wheel at interval of 0.5h, guide vane wheel when overturning
It cannot take out from automatically cleaning treatment fluid, directly be overturn under submerged state；
3, guide vane wheel is taken out after the completion of impregnating, is suspended on ventilation, naturally dry；
4, the guide vane wheel after drying is sent in sterilization room and carries out spray disinfection, using the gold after dilution when spray disinfection
Belong to working fluid fungicide to be sterilized, 1-2h is stood after spray disinfection；
5, after the completion of after sterilizing, guide vane wheel is put into automatically cleaning treatment fluid and carries out secondary immersion, when secondary immersion from
The temperature of cleaning treatment liquid is set as 80-90 DEG C, takes out after impregnating 1-2h；
6, the guide vane wheel of taking-up being sent to progress constant temperature processing in constant-temperature house, the temperature setting of constant-temperature house is 50-60 DEG C,
It is taken out after placing 30-40min in constant-temperature house；
7, re-pasteurization carried out to guide vane wheel after taking out, when sterilization, which is used in, sterilizes identical metal working fluid for the first time and kill
Microbial inoculum and method for disinfection；
8, it takes out to dry after sterilizing and can carry out assembling use；
Being prepared from automatically cleaning treatment fluid by the component of following mass fraction described in wherein: 8-10 parts of titanium dioxide, acid
4-8 parts of catalyst, 10-16 parts of molybdenum disulfide, 3-6 parts of crosslinked resin, 5-10 parts of chromiumcopper powder, 2-4 parts of benzene sulfonic acid catalyst,
3-8 parts of ethylsiloxane, -4 parts of silica 1,1.5-3 parts of flatting silica, 0.5-2 parts of vanadium iron powder, 1-3 parts of hydroxymethyl cellulose,
0.8-2 parts of ferrous ammonium, 4-7 parts of calcium oxide, 6-10 parts of zinc borate；
It is above-mentioned to be prepared by the following method from automatically cleaning treatment fluid:
1, titanium dioxide, acid catalyst, molybdenum disulfide and crosslinked resin are added in reaction kettle and are mixed, closed after mixing
It closes feed opening and fusing stirring is carried out to it, then heat preservation stands 10-30min；
2, chromiumcopper powder, benzene sulfonic acid catalyst and ethylsiloxane are added sequentially in reaction kettle after mixing evenly again
Secondary heating stops heating, is then allowed to stand 10-30min, then heat up, stops after being warming up to 75-80 DEG C after being heated up to 60-65 DEG C
Only heat up；
3, flatting silica, vanadium iron powder, hydroxymethyl cellulose, ferrous ammonium, calcium oxide and zinc borate stirring are then sequentially added
Uniformly, it is eventually adding silica at the uniform velocity to be stirred, takes out mixed liquor after stirring 20-30min and is diluted with pure water,
Being diluted to concentration is 35-40%；
The concentration of further technology, the metal working fluid fungicide is 20-25%, and metal working fluid fungicide makes
Processing need to be modified before；
Further technology, according to the mass fraction by 20-30 parts of metal when the bactericidal agent modified processing of the metal working fluid
Working fluid fungicide is warming up to after evenly mixing with 3-5 parts of hydrogen peroxide, 1-2 parts of butyl acetate and 4-8 parts of epoxy prapanol
60-65 DEG C, then mixed liquor is poured into centrifugal blender and is stirred, natural cooling after stirring.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (4)
1. the processing method of the guide vane of water pump wheel with self-cleaning performance, it is characterised in that: the following steps are included:
(1) polish the guide vane wheel surface that processes of casting, when being polishing to smooth five burr in surface until；
(2) guide vane wheel after polishing is put into automatically cleaning treatment fluid and is impregnated, guide vane wheel is completely submerged in by when immersion
It in automatically cleaning treatment fluid, and heats up to automatically cleaning treatment fluid, stops rising when automatically cleaning treatment fluid temperature rises to 70-80 DEG C
Temperature, then constant temperature keeps 2-3h, when immersion, carries out once inside out to guide vane wheel at interval of 0.5h, and guide vane wheel cannot be taken when overturning
Come from cleaning treatment liquid, is directly overturn under submerged state；
(3) guide vane wheel is taken out after the completion of impregnating, is suspended on ventilation, naturally dry；
(4) guide vane wheel after drying is sent in sterilization room and carries out spray disinfection, using the metal after dilution when spray disinfection
Working fluid fungicide is sterilized, and 1-2h is stood after spray disinfection；
(5) after the completion of after sterilizing, guide vane wheel is put into automatically cleaning treatment fluid and carries out secondary immersion, automatically cleaning when secondary immersion
The temperature for the treatment of fluid is set as 80-90 DEG C, takes out after impregnating 1-2h；
(6) guide vane wheel of taking-up being sent to progress constant temperature processing in constant-temperature house, the temperature setting of constant-temperature house is 50-60 DEG C,
It is taken out after placing 30-40min in constant-temperature house；
(7) re-pasteurization is carried out to guide vane wheel after taking out, uses when sterilization and sterilizes identical metal working fluid for the first time and sterilize
Agent and method for disinfection；
(8) it takes out to dry after sterilizing and can carry out assembling use；
Wherein the automatically cleaning treatment fluid is prepared by the component of following mass fraction: 8-10 parts of titanium dioxide, acid catalyst
4-8 parts, 10-16 parts of molybdenum disulfide, 3-6 parts of crosslinked resin, 5-10 parts of chromiumcopper powder, 2-4 parts of benzene sulfonic acid catalyst, ethyl silicon
3-8 parts of oxygen alkane, -4 parts of silica 1,1.5-3 parts of flatting silica, 0.5-2 parts of vanadium iron powder, 1-3 parts of hydroxymethyl cellulose, ferrous ammonium
0.8-2 parts, 4-7 parts of calcium oxide, 6-10 parts of zinc borate.
2. the processing method of the guide vane of water pump wheel according to claim 1 with self-cleaning performance, it is characterised in that: described
Automatically cleaning treatment fluid is prepared by the following method: (1) titanium dioxide, acid catalyst, molybdenum disulfide and crosslinked resin being added
It is mixed into reaction kettle, feed opening is closed after mixing, fusing stirring is carried out to it, then heat preservation stands 10-30min；(2)
Chromiumcopper powder, benzene sulfonic acid catalyst and ethylsiloxane are added sequentially in reaction kettle heat again after mixing evenly, added
Temperature is then allowed to stand 10-30min, then heat up, stops heating after being warming up to 75-80 DEG C to stopping heating after 60-65 DEG C；(3)
Then flatting silica, vanadium iron powder, hydroxymethyl cellulose, ferrous ammonium, calcium oxide and zinc borate is sequentially added to stir evenly, finally plus
Enter silica at the uniform velocity to be stirred, take out mixed liquor after stirring 20-30min and be diluted with pure water, is diluted to concentration
For 35-40%.
3. the processing method of the guide vane of water pump wheel according to claim 1 with self-cleaning performance, it is characterised in that: described
The concentration of metal working fluid fungicide be 20-25%, metal working fluid fungicide needs to be modified processing before use.
4. the processing method of the guide vane of water pump wheel according to claim 3 with self-cleaning performance, it is characterised in that: described
According to the mass fraction by 20-30 parts of metal working fluid fungicide and 3-5 part of pair when the bactericidal agent modified processing of metal working fluid
Oxygen water, 1-2 parts of butyl acetate and 4-8 parts of epoxy prapanol are warming up to 60-65 DEG C after evenly mixing, then pour into mixed liquor
It is stirred into centrifugal blender, natural cooling after stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710538546.6A CN107165858B (en) | 2017-07-04 | 2017-07-04 | Guide vane of water pump wheel and its processing method with self-cleaning performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710538546.6A CN107165858B (en) | 2017-07-04 | 2017-07-04 | Guide vane of water pump wheel and its processing method with self-cleaning performance |
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| CN107165858A CN107165858A (en) | 2017-09-15 |
| CN107165858B true CN107165858B (en) | 2019-07-26 |
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ID=59822771
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| CN101067201A (en) * | 2007-06-12 | 2007-11-07 | 江苏大学 | Method for promoting preprocessing of copper-clad zirconium tungstate composite powder |
| CN101730727A (en) * | 2007-06-19 | 2010-06-09 | 细胞生物工程有限公司 | Method for protecting substrates and removing contaminants from such substrates |
| CN103103508A (en) * | 2011-11-14 | 2013-05-15 | 深圳富泰宏精密工业有限公司 | Surface treatment method for aluminum or aluminum alloy and product prepared thereby |
| EP2705925A2 (en) * | 2011-09-16 | 2014-03-12 | King Abdulaziz City for Science & Technology (KACST) | Method of enhancing wear resistance of the centrifugal pump parts |
| CN106480487A (en) * | 2016-09-20 | 2017-03-08 | 东南大学 | A kind of preparation method of the corrosion-resistant film layer of magnesium based metal antibacterial and mouldproof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6630198B2 (en) * | 2001-01-19 | 2003-10-07 | General Electric Co. | Methods and apparatus for washing gas turbine engines |
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2017
- 2017-07-04 CN CN201710538546.6A patent/CN107165858B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101067201A (en) * | 2007-06-12 | 2007-11-07 | 江苏大学 | Method for promoting preprocessing of copper-clad zirconium tungstate composite powder |
| CN101730727A (en) * | 2007-06-19 | 2010-06-09 | 细胞生物工程有限公司 | Method for protecting substrates and removing contaminants from such substrates |
| EP2705925A2 (en) * | 2011-09-16 | 2014-03-12 | King Abdulaziz City for Science & Technology (KACST) | Method of enhancing wear resistance of the centrifugal pump parts |
| CN103103508A (en) * | 2011-11-14 | 2013-05-15 | 深圳富泰宏精密工业有限公司 | Surface treatment method for aluminum or aluminum alloy and product prepared thereby |
| CN106480487A (en) * | 2016-09-20 | 2017-03-08 | 东南大学 | A kind of preparation method of the corrosion-resistant film layer of magnesium based metal antibacterial and mouldproof |
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| CN107165858A (en) | 2017-09-15 |
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