CN113718311A - Aluminum profile surface brightening treatment process - Google Patents
Aluminum profile surface brightening treatment process Download PDFInfo
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- CN113718311A CN113718311A CN202111052647.5A CN202111052647A CN113718311A CN 113718311 A CN113718311 A CN 113718311A CN 202111052647 A CN202111052647 A CN 202111052647A CN 113718311 A CN113718311 A CN 113718311A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/16—Pretreatment, e.g. desmutting
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- 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
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a surface brightening treatment process for an aluminum profile, which comprises the following steps: s1) preparing an aluminum profile: placing the aluminum ingot into an extruder to be extruded, carrying out aging treatment on the aluminum ingot after extrusion, and processing the aluminum ingot by using a numerical control machine tool after aging treatment to obtain an aluminum profile with a preset specification and size; s2) cleaning aluminum profiles: cleaning the aluminum profile with clean water, and placing the aluminum profile into a drying chamber for drying after cleaning; s3) sand washing treatment: placing the dried aluminum profile into a sand blasting machine, and then performing sand blasting treatment on the cleaned aluminum profile by using 200-mesh sand; s4) degreasing aluminum profiles: aligning a spray gun filled with a degreasing agent to the sand-washed aluminum profile for pressure jet degreasing, and after the pressure jet degreasing is finished, placing the aluminum profile into a circulating degreasing agent for immersion degreasing; can avoid the surface of the aluminum profile from being corroded to form scattered spots.
Description
Technical Field
The invention relates to the technical field of aluminum profile production, in particular to a surface brightening treatment process for an aluminum profile.
Background
The aluminum profile surface treatment process is generally an anodic oxidation process, but the aluminum profile is easy to generate surface material segregation, so that the distribution of elements on the surface of the aluminum profile is changed, the quality of an oxide film on the surface of the anodic oxidation process is defective due to obvious difference from the body property, and the aluminum profile is easy to corrode and form scattered spots under a complex environment, so that the appearance and the reliability are seriously influenced.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the existing defects and provide a surface brightening treatment process for an aluminum profile, which can avoid the surface of the aluminum profile from being corroded to form scattered spots and can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a surface brightening treatment process for an aluminum profile comprises the following steps:
s1) preparing an aluminum profile: placing the aluminum ingot into an extruder to be extruded, carrying out aging treatment on the aluminum ingot after extrusion, and processing the aluminum ingot by using a numerical control machine tool after aging treatment to obtain an aluminum profile with a preset specification and size;
s2) cleaning aluminum profiles: cleaning the aluminum profile with clean water, and placing the aluminum profile into a drying chamber for drying after cleaning;
s3) sand washing treatment: placing the dried aluminum profile into a sand blasting machine, and then performing sand blasting treatment on the cleaned aluminum profile by using 200-mesh sand;
s4) degreasing aluminum profiles: aligning a spray gun filled with a degreasing agent to the sand-washed aluminum profile for pressure jet degreasing, and after the pressure jet degreasing is finished, placing the aluminum profile into a circulating degreasing agent for immersion degreasing;
s5) acid washing: placing the degreased aluminum profile into a cleaning box, and adding sulfuric acid into the cleaning box to perform acid cleaning on the aluminum profile after the aluminum profile is placed;
s6) anodizing: placing the aluminum profile subjected to acid pickling into a reaction tank, adding electrolyte into the reaction tank, and electrifying to carry out anodic oxidation treatment on the aluminum profile after the electrolyte is added;
s7) polishing: placing the aluminum profile subjected to anodic oxidation treatment into a baking oven to bake the aluminum profile, ensuring the surface of the aluminum profile to be dry after baking, and then spraying UV (ultraviolet) glazing oil on the surface of the aluminum profile to polish the aluminum profile.
As a preferred technical scheme of the invention, the extrusion temperature is controlled to be 430-450 ℃ during extrusion, and the extrusion speed of the extruder is 10-20 m/min.
As a preferred technical scheme of the invention, the temperature in the drying chamber is 100-130 ℃, and the drying time is 10-30 min.
As a preferred technical scheme of the invention, the Rockwell hardness of the sand is 70 +/-10 HRC, and the sand adopts machine-made sand.
As a preferred technical scheme of the invention, the degreasing agent consists of 10-20 parts of sodium phosphate, 5-9 parts of potassium pyrophosphate, 4-6 parts of fatty alcohol-polyoxyethylene ether, 6-8 parts of decyl alcohol polyether glucoside, 1-3 parts of emulsified silicone oil and water.
As a preferred technical scheme of the invention, the pressure jet degreasing time is 1.5-3min, the immersion degreasing time is 3-5min, and the degreasing temperature is controlled at 40-50 ℃.
As a preferred technical scheme of the invention, the time for soaking the aluminum profile in the sulfuric acid is 0.5-1min, the cleaning box needs to be heated in the pickling process, and the temperature is controlled at 25-35 ℃.
As a preferred technical scheme of the invention, the electrolyte can be methyl ethyl carbonate or lithium hexafluorophosphate.
As a preferred technical scheme of the invention, the temperature in the baking oven is 150-250 ℃, and the baking time is 5-10 min.
As a preferred technical scheme of the invention, the UV varnish coating is carried out in a spraying chamber, and the temperature in the spraying chamber is controlled to be 8-25 ℃.
Compared with the prior art, the invention has the beneficial effects that:
1. by spraying the UV glazing oil on the surface of the aluminum profile, the glossiness of the surface of the aluminum profile can be enhanced, and the wear resistance and the waterproofness can be effectively improved, so that the service life of the aluminum profile is greatly prolonged, and the aluminum profile is more attractive;
2. by carrying out anodic oxidation treatment on the aluminum profile, the corrosion resistance of the aluminum profile can be effectively improved, the wear resistance and hardness of the aluminum profile are enhanced, the surface of the aluminum profile can be effectively protected, and spots on the surface of the aluminum profile can be avoided;
3. the surface of the aluminum profile is subjected to sand washing treatment, so that burrs on the surface of the aluminum profile and an oxide film formed by exposing the aluminum profile in the air can be effectively removed, and after the burrs and the oxide film are removed, anodic oxidation treatment is performed, so that the effect of the anodic oxidation treatment is better;
4. the pressure jet degreasing and the immersion degreasing are adopted, so that the degreasing time can be effectively prolonged, namely the contact time of the degreasing liquid and the oil stain is prolonged, and the degreasing effect is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: a surface brightening treatment process for an aluminum profile comprises the following steps:
s1) preparing an aluminum profile: placing an aluminum ingot into an extruder to be extruded, carrying out aging treatment on the aluminum ingot after extrusion, and processing the aluminum ingot by using a numerical control machine tool after aging treatment to obtain an aluminum profile with a preset specification and size, wherein the extrusion temperature needs to be controlled at 430 ℃ during extrusion, and the extrusion speed of the extruder is 10 m/min;
s2) cleaning aluminum profiles: cleaning the aluminum profile with clean water, placing the aluminum profile into a drying chamber for drying after cleaning, wherein the temperature in the drying chamber is 100 ℃, and the drying time is 10 min;
s3) sand washing treatment: placing the dried aluminum profile into a sand blasting machine, and then performing sand blasting treatment on the cleaned aluminum profile by using 200-mesh sand, wherein the Rockwell hardness of the sand is 80HRC, and the sand adopts machine-made sand;
s4) degreasing aluminum profiles: aligning a spray gun filled with a degreasing agent to a sand-washed aluminum profile, carrying out pressure jet degreasing on the aluminum profile, placing the aluminum profile into a circulating degreasing agent for immersion degreasing after the pressure jet degreasing is finished, wherein the degreasing agent is composed of 10 parts of sodium phosphate, 5 parts of potassium pyrophosphate, 4 parts of fatty alcohol polyoxyethylene ether, 6 parts of decyl alcohol polyether glucoside, 1 part of emulsified silicone oil and water, the pressure jet degreasing time is 1.5min, the immersion degreasing time is 3min, and the degreasing temperature is controlled at 40 ℃;
s5) acid washing: placing the degreased aluminum profile into a cleaning box, adding sulfuric acid into the cleaning box after the aluminum profile is placed, and carrying out acid cleaning on the aluminum profile, wherein the aluminum profile is soaked in the sulfuric acid for 0.5min, the cleaning box is required to be heated in the acid cleaning process, and the temperature is controlled at 25 ℃;
s6) anodizing: placing the aluminum profile subjected to acid pickling into a reaction tank, adding an electrolyte into the reaction tank, and electrifying to carry out anodic oxidation treatment on the aluminum profile after the electrolyte is added, wherein the electrolyte can be methyl ethyl carbonate;
s7) polishing: placing the aluminum profile subjected to anodic oxidation treatment into a baking oven to bake the aluminum profile, ensuring the surface of the aluminum profile to be dry after baking, spraying UV (ultraviolet) gloss oil on the surface of the aluminum profile to polish the aluminum profile, wherein the temperature in the baking oven is 150 ℃, the baking time is 5, the spraying UV gloss oil is sprayed in a spraying chamber, and the temperature in the spraying chamber is controlled to be 8 ℃.
Example two: a surface brightening treatment process for an aluminum profile comprises the following steps:
s1) preparing an aluminum profile: placing the aluminum ingot into an extruder to be extruded, carrying out aging treatment on the aluminum ingot after extrusion, and processing the aluminum ingot by using a numerical control machine tool after aging treatment to obtain an aluminum profile with a preset specification and size, wherein the extrusion temperature needs to be controlled at 450 ℃ during extrusion, and the extrusion speed of the extruder is 20 m/min;
s2) cleaning aluminum profiles: cleaning the aluminum profile with clean water, placing the aluminum profile into a drying chamber for drying after cleaning, wherein the temperature in the drying chamber is 130 ℃, and the drying time is 30 min;
s3) sand washing treatment: placing the dried aluminum profile into a sand blasting machine, and then performing sand blasting treatment on the cleaned aluminum profile by using 200-mesh sand, wherein the Rockwell hardness of the sand is 80HRC, and the sand adopts machine-made sand;
s4) degreasing aluminum profiles: aligning a spray gun filled with a degreasing agent to a sand-washed aluminum profile, carrying out pressure jet degreasing on the aluminum profile, placing the aluminum profile into a circulating degreasing agent for immersion degreasing after the pressure jet degreasing is finished, wherein the degreasing agent consists of 20 parts of sodium phosphate, 9 parts of potassium pyrophosphate, 6 parts of fatty alcohol polyoxyethylene ether, 8 parts of decyl alcohol polyether glucoside, 3 parts of emulsified silicone oil and water, the pressure jet degreasing time is 3min, the immersion degreasing time is 5min, and the degreasing temperature is controlled at 50 ℃;
s5) acid washing: placing the degreased aluminum profile into a cleaning box, adding sulfuric acid into the cleaning box after the aluminum profile is placed, and carrying out acid cleaning on the aluminum profile, wherein the aluminum profile is soaked in the sulfuric acid for 1min, the cleaning box needs to be heated in the acid cleaning process, and the temperature is controlled at 35 ℃;
s6) anodizing: placing the aluminum profile subjected to acid pickling into a reaction tank, adding an electrolyte into the reaction tank, and electrifying to carry out anodic oxidation treatment on the aluminum profile after the electrolyte is added, wherein the electrolyte can be lithium hexafluorophosphate;
s7) polishing: placing the aluminum profile subjected to anodic oxidation treatment into a baking oven to bake the aluminum profile, ensuring the surface of the aluminum profile to be dry after baking, spraying UV (ultraviolet) varnish on the surface of the aluminum profile to polish the aluminum profile, wherein the temperature in the baking oven is 250 ℃, the baking time is 10min, the spraying of the UV varnish is carried out in a spraying chamber, and the temperature in the spraying chamber is controlled at 25 ℃.
Example three: a surface brightening treatment process for an aluminum profile comprises the following steps:
s1) preparing an aluminum profile: placing the aluminum ingot into an extruder to be extruded, carrying out aging treatment on the aluminum ingot after extrusion, and processing the aluminum ingot by using a numerical control machine tool after aging treatment to obtain an aluminum profile with a preset specification and size, wherein the extrusion temperature is controlled at 430 ℃ during extrusion, and the extrusion speed of the extruder is 15 m/min;
s2) cleaning aluminum profiles: cleaning the aluminum profile with clean water, placing the aluminum profile into a drying chamber for drying after cleaning, wherein the temperature in the drying chamber is 120 ℃, and the drying time is 20 min;
s3) sand washing treatment: placing the dried aluminum profile into a sand blasting machine, and then performing sand blasting treatment on the cleaned aluminum profile by using 200-mesh sand, wherein the Rockwell hardness of the sand is 60HRC, and the sand adopts machine-made sand;
s4) degreasing aluminum profiles: aligning a spray gun filled with a degreasing agent to a sand-washed aluminum profile, carrying out pressure jet degreasing on the aluminum profile, placing the aluminum profile into a circulating degreasing agent for immersion degreasing after the pressure jet degreasing is finished, wherein the degreasing agent is composed of 11 parts of sodium phosphate, 6 parts of potassium pyrophosphate, 6 parts of fatty alcohol polyoxyethylene ether, 7 parts of decyl alcohol polyether glucoside, 2 parts of emulsified silicone oil and water, the pressure jet degreasing time is 2min, the immersion degreasing time is 4min, and the degreasing temperature is controlled at 45 ℃;
s5) acid washing: placing the degreased aluminum profile into a cleaning box, adding sulfuric acid into the cleaning box after the aluminum profile is placed, and carrying out acid cleaning on the aluminum profile, wherein the aluminum profile is soaked in the sulfuric acid for 1min, the cleaning box needs to be heated in the acid cleaning process, and the temperature is controlled at 30 ℃;
s6) anodizing: placing the aluminum profile subjected to acid pickling into a reaction tank, adding an electrolyte into the reaction tank, and electrifying to carry out anodic oxidation treatment on the aluminum profile after the electrolyte is added, wherein the electrolyte can be lithium hexafluorophosphate;
s7) polishing: placing the aluminum profile subjected to anodic oxidation treatment into a baking oven to bake the aluminum profile, ensuring the surface of the aluminum profile to be dry after baking, spraying UV (ultraviolet) varnish on the surface of the aluminum profile to polish the aluminum profile, wherein the temperature in the baking oven is 200 ℃, the baking time is 8min, the spraying of the UV varnish is carried out in a spraying chamber, and the temperature in the spraying chamber is controlled at 13 ℃.
Example four: a surface brightening treatment process for an aluminum profile comprises the following steps:
s1) preparing an aluminum profile: placing the aluminum ingot into an extruder to be extruded, carrying out aging treatment on the aluminum ingot after extrusion, and processing the aluminum ingot by using a numerical control machine tool after aging treatment to obtain an aluminum profile with a preset specification and size, wherein the extrusion temperature needs to be controlled at 420 ℃ during extrusion, and the extrusion speed of the extruder is 13 m/min;
s2) cleaning aluminum profiles: cleaning the aluminum profile with clean water, placing the aluminum profile into a drying chamber for drying after cleaning, wherein the temperature in the drying chamber is 125 ℃, and the drying time is 15 min;
s3) sand washing treatment: placing the dried aluminum profile into a sand blasting machine, and then performing sand blasting treatment on the cleaned aluminum profile by using 200-mesh sand, wherein the Rockwell hardness of the sand is 60HRC, and the sand adopts machine-made sand;
s4) degreasing aluminum profiles: aligning a spray gun filled with a degreasing agent to a sand-washed aluminum profile, carrying out pressure jet degreasing on the aluminum profile, placing the aluminum profile into a circulating degreasing agent for immersion degreasing after the pressure jet degreasing is finished, wherein the degreasing agent consists of 12 parts of sodium phosphate, 8 parts of potassium pyrophosphate, 5 parts of fatty alcohol polyoxyethylene ether, 7 parts of decyl alcohol polyether glucoside, 1 part of emulsified silicone oil and water, the pressure jet degreasing time is 2.5min, the immersion degreasing time is 4.5min, and the degreasing temperature is controlled at 43 ℃;
s5) acid washing: placing the degreased aluminum profile into a cleaning box, adding sulfuric acid into the cleaning box after the aluminum profile is placed, and carrying out acid cleaning on the aluminum profile, wherein the aluminum profile is soaked in the sulfuric acid for 1min, the cleaning box needs to be heated in the acid cleaning process, and the temperature is controlled at 30 ℃;
s6) anodizing: placing the aluminum profile subjected to acid pickling into a reaction tank, adding an electrolyte into the reaction tank, and electrifying to carry out anodic oxidation treatment on the aluminum profile after the electrolyte is added, wherein the electrolyte can be methyl ethyl carbonate;
s7) polishing: placing the aluminum profile subjected to anodic oxidation treatment into a baking oven to bake the aluminum profile, ensuring the surface of the aluminum profile to be dry after baking, spraying UV (ultraviolet) varnish on the surface of the aluminum profile to polish the aluminum profile, wherein the temperature in the baking oven is 170 ℃, the baking time is 7min, the spraying of the UV varnish is carried out in a spraying chamber, and the temperature in the spraying chamber is controlled at 21 ℃.
According to the invention, through carrying out sand washing treatment on the surface of the aluminum profile, burrs on the surface of the aluminum profile and an oxide film formed by exposing the aluminum profile in the air can be effectively removed, and after the burrs and the oxide film are removed, anodic oxidation treatment is carried out, so that the anodic oxidation treatment effect is better.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The aluminum profile surface brightening treatment process is characterized by comprising the following steps:
s1) preparing an aluminum profile: placing the aluminum ingot into an extruder to be extruded, carrying out aging treatment on the aluminum ingot after extrusion, and processing the aluminum ingot by using a numerical control machine tool after aging treatment to obtain an aluminum profile with a preset specification and size;
s2) cleaning aluminum profiles: cleaning the aluminum profile with clean water, and placing the aluminum profile into a drying chamber for drying after cleaning;
s3) sand washing treatment: placing the dried aluminum profile into a sand blasting machine, and then performing sand blasting treatment on the cleaned aluminum profile by using 200-mesh sand;
s4) degreasing aluminum profiles: aligning a spray gun filled with a degreasing agent to the sand-washed aluminum profile for pressure jet degreasing, and after the pressure jet degreasing is finished, placing the aluminum profile into a circulating degreasing agent for immersion degreasing;
s5) acid washing: placing the degreased aluminum profile into a cleaning box, and adding sulfuric acid into the cleaning box to perform acid cleaning on the aluminum profile after the aluminum profile is placed;
s6) anodizing: placing the aluminum profile subjected to acid pickling into a reaction tank, adding electrolyte into the reaction tank, and electrifying to carry out anodic oxidation treatment on the aluminum profile after the electrolyte is added;
s7) polishing: placing the aluminum profile subjected to anodic oxidation treatment into a baking oven to bake the aluminum profile, ensuring the surface of the aluminum profile to be dry after baking, and then spraying UV (ultraviolet) glazing oil on the surface of the aluminum profile to polish the aluminum profile.
2. The aluminum profile surface brightening process according to claim 1, characterized in that: the extrusion temperature is controlled to be 430-450 ℃ during extrusion, and the extrusion speed of the extruder is 10-20 m/min.
3. The aluminum profile surface brightening process according to claim 1, characterized in that: the temperature in the drying chamber is 100-130 ℃, and the drying time is 10-30 min.
4. The aluminum profile surface brightening process according to claim 1, characterized in that: the Rockwell hardness of the sand is 70 +/-10 HRC, and the sand adopts machine-made sand.
5. The aluminum profile surface brightening process according to claim 1, characterized in that: the degreasing agent consists of 10-20 parts of sodium phosphate, 5-9 parts of potassium pyrophosphate, 4-6 parts of fatty alcohol-polyoxyethylene ether, 6-8 parts of decyl alcohol polyether glucoside, 1-3 parts of emulsified silicone oil and water.
6. The aluminum profile surface brightening process according to claim 1, characterized in that: the pressure spray degreasing time is 1.5-3min, the immersion degreasing time is 3-5min, and the degreasing temperature is controlled at 40-50 ℃.
7. The aluminum profile surface brightening process according to claim 1, characterized in that: the time of soaking the aluminum profile in the sulfuric acid is 0.5-1min, the cleaning box needs to be heated in the pickling process, and the temperature is controlled at 25-35 ℃.
8. The aluminum profile surface brightening process according to claim 1, characterized in that: the electrolyte can be methyl ethyl carbonate or lithium hexafluorophosphate.
9. The aluminum profile surface brightening process according to claim 1, characterized in that: the temperature in the baking oven is 150-250 ℃, and the baking time is 5-10 min.
10. The aluminum profile surface brightening process according to claim 1, characterized in that: spraying UV gloss oil in a spraying chamber, wherein the temperature in the spraying chamber is controlled at 8-25 ℃.
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| CN202111052647.5A CN113718311A (en) | 2021-09-09 | 2021-09-09 | Aluminum profile surface brightening treatment process |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513587A (en) * | 2018-12-29 | 2019-03-26 | 安徽科蓝特铝业有限公司 | A kind of zero-fault zero diopter Electrostatic Spraying of powder Coatings coating method |
| CN111155156A (en) * | 2019-12-27 | 2020-05-15 | 广州市中海达测绘仪器有限公司 | Surface treatment process for aluminum profile |
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- 2021-09-09 CN CN202111052647.5A patent/CN113718311A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513587A (en) * | 2018-12-29 | 2019-03-26 | 安徽科蓝特铝业有限公司 | A kind of zero-fault zero diopter Electrostatic Spraying of powder Coatings coating method |
| CN111155156A (en) * | 2019-12-27 | 2020-05-15 | 广州市中海达测绘仪器有限公司 | Surface treatment process for aluminum profile |
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Address after: 528137 F22, first floor, building 23, No. 23, qiangye Avenue, Leping Town, Sanshui District, Foshan City, Guangdong Province (residence declaration) Applicant after: GUANGDONG XINGFA ALUMINIUM Co.,Ltd. Address before: 528061, No. 23, Ho Man Road, Nanzhuang Town, Chancheng District, Guangdong, Foshan Applicant before: GUANGDONG XINGFA ALUMINIUM Co.,Ltd. |
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Application publication date: 20211130 |
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