CN113005458A - Low-corrosivity aluminum alloy chemical polishing solution - Google Patents
Low-corrosivity aluminum alloy chemical polishing solution Download PDFInfo
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- CN113005458A CN113005458A CN202110203431.8A CN202110203431A CN113005458A CN 113005458 A CN113005458 A CN 113005458A CN 202110203431 A CN202110203431 A CN 202110203431A CN 113005458 A CN113005458 A CN 113005458A
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- Prior art keywords
- polishing solution
- aluminum alloy
- sodium
- acid
- chloride
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- 238000005498 polishing Methods 0.000 title claims abstract description 33
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 25
- 239000000126 substance Substances 0.000 title claims abstract description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000005260 corrosion Methods 0.000 claims abstract description 14
- 230000007797 corrosion Effects 0.000 claims abstract description 14
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 11
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 16
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 16
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 12
- 239000004094 surface-active agent Substances 0.000 claims description 9
- BAERPNBPLZWCES-UHFFFAOYSA-N (2-hydroxy-1-phosphonoethyl)phosphonic acid Chemical compound OCC(P(O)(O)=O)P(O)(O)=O BAERPNBPLZWCES-UHFFFAOYSA-N 0.000 claims description 8
- 239000002202 Polyethylene glycol Substances 0.000 claims description 8
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 8
- 239000008139 complexing agent Substances 0.000 claims description 8
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 8
- 239000003112 inhibitor Substances 0.000 claims description 8
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 8
- 229920001223 polyethylene glycol Polymers 0.000 claims description 8
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims description 6
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 claims description 6
- 229920002873 Polyethylenimine Polymers 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 4
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 4
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 claims description 4
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 claims description 4
- 239000001103 potassium chloride Substances 0.000 claims description 4
- 235000011164 potassium chloride Nutrition 0.000 claims description 4
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 claims description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 2
- UNMYWSMUMWPJLR-UHFFFAOYSA-L Calcium iodide Chemical compound [Ca+2].[I-].[I-] UNMYWSMUMWPJLR-UHFFFAOYSA-L 0.000 claims description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- 229910001622 calcium bromide Inorganic materials 0.000 claims description 2
- 239000001110 calcium chloride Substances 0.000 claims description 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 2
- WGEFECGEFUFIQW-UHFFFAOYSA-L calcium dibromide Chemical compound [Ca+2].[Br-].[Br-] WGEFECGEFUFIQW-UHFFFAOYSA-L 0.000 claims description 2
- 229910001640 calcium iodide Inorganic materials 0.000 claims description 2
- 229940046413 calcium iodide Drugs 0.000 claims description 2
- 239000004202 carbamide Substances 0.000 claims description 2
- 235000013877 carbamide Nutrition 0.000 claims description 2
- OTCKOJUMXQWKQG-UHFFFAOYSA-L magnesium bromide Chemical compound [Mg+2].[Br-].[Br-] OTCKOJUMXQWKQG-UHFFFAOYSA-L 0.000 claims description 2
- 229910001623 magnesium bromide Inorganic materials 0.000 claims description 2
- BLQJIBCZHWBKSL-UHFFFAOYSA-L magnesium iodide Chemical compound [Mg+2].[I-].[I-] BLQJIBCZHWBKSL-UHFFFAOYSA-L 0.000 claims description 2
- 229910001641 magnesium iodide Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 235000009518 sodium iodide Nutrition 0.000 claims description 2
- 239000011684 sodium molybdate Substances 0.000 claims description 2
- 235000015393 sodium molybdate Nutrition 0.000 claims description 2
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims description 2
- 235000019830 sodium polyphosphate Nutrition 0.000 claims description 2
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 abstract description 22
- 239000004033 plastic Substances 0.000 abstract description 22
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 6
- 238000007517 polishing process Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 29
- 229910052782 aluminium Inorganic materials 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 239000002131 composite material Substances 0.000 description 9
- 238000003756 stirring Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 241001268993 Heterochrosis Species 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 230000002087 whitening effect Effects 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- UYAOBGRCBZBHDR-UHFFFAOYSA-N [P].S(O)(O)(=O)=O Chemical compound [P].S(O)(O)(=O)=O UYAOBGRCBZBHDR-UHFFFAOYSA-N 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 241000276489 Merlangius merlangus Species 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F3/00—Brightening metals by chemical means
- C23F3/02—Light metals
- C23F3/03—Light metals with acidic solutions
Abstract
The invention discloses a low-corrosivity aluminum alloy chemical polishing solution, which does not contain sulfuric acid, only contains phosphoric acid and can solve the problem of corrosion of the polishing solution to plastic in the polishing process of an aluminum-plastic combined part due to weakened acidity.
Description
The technical field is as follows:
the invention relates to a low-corrosivity aluminum alloy chemical polishing solution.
Background art:
the aluminum-plastic composite material is a novel material which is formed in recent years, a layer of nano-pore oxide layer is formed on the surface of an aluminum alloy, and molten plastic is injected into nano-pores through intramembrane injection molding to form the aluminum-plastic composite material, so that the weight can be reduced, and the electromagnetic shielding can be reduced.
The traditional aluminum alloying polishing solution is a phosphorus, sulfur and nitric acid three-acid system or a phosphorus-sulfuric acid system, and the polishing solution has strong acidity due to the fact that the polishing solution contains strong acid. In the traditional three-acid or phosphorus-sulfuric acid polishing solution, the plastic of the aluminum-plastic composite material is easy to be corroded by strong acid, so that the problems of plastic whitening, heterochrosis, mottling and the like are caused. How to solve the problems of plastic whitening, heterochrosis, mottle and the like when the aluminum-plastic composite material is polished becomes a new technical subject.
The invention content is as follows:
the invention aims to provide a low-corrosivity aluminum alloy chemical polishing solution, which solves the problems of plastic whitening, heterochrosis and mottling during chemical polishing of an aluminum-plastic composite material.
In order to solve the problems, the invention adopts the following technical scheme:
in a first aspect of the present invention, an aluminum alloy polishing solution is provided, which comprises phosphoric acid, a complexing agent, an accelerator, a corrosion inhibitor, and a surfactant. The polishing solution comprises, by mass, 100 parts of the total amount of the polishing solution, 70-90 parts of phosphoric acid, 1-2 parts of a complexing agent, 2-5 parts of an accelerator, 0.5-2 parts of a corrosion inhibitor and 0.1-1 part of a surfactant.
Further, the complexing agent is selected from hydroxyethylidene diphosphonic acid, nitrilotriacetic acid and ethylenediaminetetraacetic acid, preferably hydroxyethylidene diphosphonic acid.
The complexing agent accelerates the solution of various metal ions of the aluminum alloy on one hand, and prevents the metal ions from forming precipitates on the surface of the aluminum alloy to influence the polishing effect on the other hand.
Further, the accelerator is selected from the group consisting of potassium chloride, calcium chloride, sodium chloride, magnesium chloride, potassium bromide, calcium bromide, sodium bromide, magnesium bromide, potassium iodide, calcium iodide, sodium iodide and magnesium iodide, preferably magnesium chloride.
The polishing solution chemically polishes the surface of the aluminum alloy, a certain corrosion speed is required to be reached, and the accelerator destroys the aluminum alloy passivation film and accelerates the corrosion and dissolution of the aluminum alloy.
Further, the corrosion inhibitor is selected from thiourea, urea, sodium polyphosphate, hexamethylenetetramine, sodium molybdate and sodium tungstate, and thiourea is preferred.
When the aluminum piece is moved out of the chemical polishing solution into the air, the polishing solution is unevenly adhered to the surface of the aluminum alloy, uneven corrosion is easily caused under the high-temperature aerobic condition, and the corrosion inhibitor forms an organic passivation film on the surface of the aluminum alloy, so that the uneven corrosion can be prevented.
Further, the surfactant is selected from the group consisting of polyethyleneimine, polyvinyl alcohol, polyacrylamide and polyethylene glycol, preferably polyethylene glycol, having a molecular weight of greater than 5000 and less than 500000.
The surface active agent reduces the surface tension of the polishing solution, so that bubbles generated in the polishing process can escape, and pinhole pocking is avoided.
In a second aspect of the present invention, a method for preparing an aluminum alloy polishing solution is provided, which comprises the following steps:
s1, adding a complexing agent, an accelerator, a corrosion inhibitor and a surfactant into pure water in proportion, and stirring until the complexing agent, the accelerator, the corrosion inhibitor and the surfactant are completely dissolved;
s2, mixing the aqueous solution and phosphoric acid in proportion, and stirring uniformly;
s3, adding the aluminum foil into the mixed solution obtained in the step 2, heating until the aluminum foil is completely dissolved, adjusting the specific gravity, and heating the solution to 80-90 ℃ to obtain the polishing solution.
Compared with the traditional phosphorus, sulfur and nitric acid polishing solution or phosphorus and sulfur polishing solution, the polishing solution does not contain strong acid, so that the acidity is greatly reduced, the plastic of the aluminum-plastic composite material is not corroded, and the problems of whitish, different colors, mottling and the like of the plastic are avoided.
The specific implementation mode is as follows:
the invention is further illustrated by the following comparative examples.
Embodiment 1, a low-corrosiveness aluminum alloy polishing solution, comprising the following components: 700g of phosphoric acid, 10g of hydroxyethylidene diphosphonic acid, 20g of magnesium chloride, 5g of thiourea and 1g of polyethylene glycol (M.W20000).
The preparation method comprises the following steps: adding 10g of hydroxyethylidene diphosphonic acid, 20g of magnesium chloride, 5g of thiourea and 1g of polyethylene glycol (M.W20000) into a beaker, adding 50mL of pure water, stirring uniformly, adding 700g of phosphoric acid, stirring uniformly, heating to 80 ℃, adding 8g of pure aluminum sheet until the aluminum sheet is completely dissolved, and obtaining the low-corrosivity aluminum alloy polishing solution.
Embodiment 2, a low-corrosiveness aluminum alloy polishing solution, comprising the following components: 800g of phosphoric acid, 20g of hydroxyethylidene diphosphonic acid, 30g of magnesium chloride, 8g of thiourea and 2g of polyethylene glycol (M.W20000).
The preparation method comprises the following steps: adding 20g of hydroxyethylidene diphosphonic acid, 30g of magnesium chloride, 8g of thiourea and 2g of polyethylene glycol (M.W20000) into a beaker, adding 50mL of pure water, stirring uniformly, adding 800g of phosphoric acid, stirring uniformly, heating to 80 ℃, adding 8g of pure aluminum sheet until the aluminum sheet is completely dissolved, and obtaining the low-corrosivity aluminum alloy polishing solution.
Comparative example 1, a low-corrosiveness aluminum alloy polishing solution, comprising the following components: 700g of phosphoric acid, 200g of sulfuric acid, 10g of nitrilotriacetic acid, 20g of potassium chloride, 5g of hexamethylenetetramine and 1g of polyethyleneimine (M.W20000).
The preparation method comprises the following steps: adding 10g of nitrilotriacetic acid, 20g of potassium chloride, 5g of hexamethylenetetramine and 1g of polyethyleneimine (M.W20000) into a beaker, adding 50mL of pure water, stirring uniformly, adding 700g of phosphoric acid and 200g of sulfuric acid, stirring uniformly, heating to 80 ℃, and adding 8g of pure aluminum sheet until the aluminum sheet is completely dissolved to obtain the low-corrosivity aluminum alloy polishing solution.
And (3) placing the prepared polishing solution in a beaker, heating to 80 ℃, soaking the cleaned aluminum alloy plastic composite part in the polishing solution for 50 seconds, taking out the aluminum alloy plastic composite part, standing for 15 seconds, washing with clear water, removing dust by ultrasonic waves for 1 minute, and cleaning and drying.
The brightness, flatness and plastic corrosion of the aluminum alloy plastic composite parts of examples 1 and 2 and comparative example 1 are shown in Table 1
TABLE 1
| Lightness of light | Flatness of | Plastic whiting | Plastic cement with different colors | Plastic mottle | |
| Example 1 | Superior food | Superior food | Is free of | Is free of | Is free of |
| Example 2 | Superior food | Superior food | Is free of | Is free of | Is free of |
| Comparative example 1 | Superior food | Superior food | Is provided with | Is provided with | Is provided with |
The above-described embodiments are merely illustrative and not restrictive, and various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and the appended claims are intended to be included within the scope of the following claims.
Claims (6)
1. The low-corrosivity aluminum alloy chemical polishing solution is characterized by comprising phosphoric acid, a complexing agent, an accelerator, a corrosion inhibitor and a surfactant.
2. The process according to claim 1, wherein the complexing agent is selected from the group consisting of hydroxyethylidene diphosphonic acid, nitrilotriacetic acid and ethylenediaminetetraacetic acid, preferably hydroxyethylidene diphosphonic acid.
3. The accelerator according to claim 1, which is selected from the group consisting of potassium chloride, calcium chloride, sodium chloride, magnesium chloride, potassium bromide, calcium bromide, sodium bromide, magnesium bromide, potassium iodide, calcium iodide, sodium iodide and magnesium iodide, preferably magnesium chloride.
4. The corrosion inhibitor according to claim 1, selected from thiourea, urea, sodium polyphosphate, hexamethylenetetramine, sodium molybdate and sodium tungstate, preferably thiourea.
5. The composition according to claim 1, wherein the surfactant is selected from the group consisting of polyethyleneimine, polyvinyl alcohol, polyacrylamide, and polyethylene glycol, preferably polyethylene glycol.
6. The surfactant of claim 5 having a molecular weight greater than 5000 and less than 500000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110203431.8A CN113005458A (en) | 2021-02-24 | 2021-02-24 | Low-corrosivity aluminum alloy chemical polishing solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110203431.8A CN113005458A (en) | 2021-02-24 | 2021-02-24 | Low-corrosivity aluminum alloy chemical polishing solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113005458A true CN113005458A (en) | 2021-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110203431.8A Pending CN113005458A (en) | 2021-02-24 | 2021-02-24 | Low-corrosivity aluminum alloy chemical polishing solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113005458A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114606498A (en) * | 2022-05-12 | 2022-06-10 | 中唯精密工业有限公司 | Plasma nano polishing solution and polishing method of cast aluminum alloy workpiece |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104498967A (en) * | 2014-12-31 | 2015-04-08 | 苏州禾川化学技术服务有限公司 | Multifunctional aluminum material corrosion-inhibition polishing pickling agent |
| CN105386058A (en) * | 2015-11-05 | 2016-03-09 | 深圳市鑫鸿达清洗技术有限公司 | Automatic aluminum alloy polishing solution based on phosphoric acid system |
| CN108486573A (en) * | 2018-05-29 | 2018-09-04 | 贾红瑞 | A kind of environment-friendly type stainless steel chemical polishing solution and its preparation and polishing method |
| CN110219004A (en) * | 2019-07-08 | 2019-09-10 | 周兆梅 | A kind of aluminum alloy chemically polishing fluid and its polishing method |
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2021
- 2021-02-24 CN CN202110203431.8A patent/CN113005458A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104498967A (en) * | 2014-12-31 | 2015-04-08 | 苏州禾川化学技术服务有限公司 | Multifunctional aluminum material corrosion-inhibition polishing pickling agent |
| CN105386058A (en) * | 2015-11-05 | 2016-03-09 | 深圳市鑫鸿达清洗技术有限公司 | Automatic aluminum alloy polishing solution based on phosphoric acid system |
| CN108486573A (en) * | 2018-05-29 | 2018-09-04 | 贾红瑞 | A kind of environment-friendly type stainless steel chemical polishing solution and its preparation and polishing method |
| CN110219004A (en) * | 2019-07-08 | 2019-09-10 | 周兆梅 | A kind of aluminum alloy chemically polishing fluid and its polishing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114606498A (en) * | 2022-05-12 | 2022-06-10 | 中唯精密工业有限公司 | Plasma nano polishing solution and polishing method of cast aluminum alloy workpiece |
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Application publication date: 20210622 |