GB1197548A - Process for the Chemical Attack of Aluminium Alloy and Magnesium Alloy Castings by means of Acid Solutions - Google Patents
Process for the Chemical Attack of Aluminium Alloy and Magnesium Alloy Castings by means of Acid SolutionsInfo
- Publication number
- GB1197548A GB1197548A GB1332769A GB1332769A GB1197548A GB 1197548 A GB1197548 A GB 1197548A GB 1332769 A GB1332769 A GB 1332769A GB 1332769 A GB1332769 A GB 1332769A GB 1197548 A GB1197548 A GB 1197548A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- acid solutions
- chemical attack
- aluminium alloy
- magnesium alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/20—Acidic compositions for etching aluminium or alloys thereof
-
- 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
- C23F1/00—Etching metallic material by chemical means
- C23F1/02—Local etching
- C23F1/04—Chemical milling
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials For Medical Uses (AREA)
Abstract
1,197,548. Chemical mill of aluminium and magnesium alloys. FIAT SOC PER AZIONI. March 13, 1969 [March 27, 1968], No. 13327/69. Heading C7E. Aluminium and magnesium alloys are chemically milled using an aqueous solution comprising hydrochloric and hydrofluoric acids and copper sulphate, e.g. as the hydrate Cu SO 4 5H 2 O. The solution for aluminium alloys may be 70 to 80 g/l HCl, 40 to 50g/150%HF, and at least 50g/1CuSO 4 , 5H 2 O, and for magnesium alloys 16 to 32 g/l HCl, 8 to 16 g/l 50% HF, and 20 to 40 g/l Cu SO 4 5H 2 O. After milling, the parts may rinsed, degreased, rinsed, and then pickled in an aqueous solution containing 200 g/l CrO 3 and 200 g/l Ca(NO 3 ) 2 . The temperature of the solution may be 25 to 30‹C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT832210 | 1968-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1197548A true GB1197548A (en) | 1970-07-08 |
Family
ID=11126370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1332769A Expired GB1197548A (en) | 1968-03-27 | 1969-03-13 | Process for the Chemical Attack of Aluminium Alloy and Magnesium Alloy Castings by means of Acid Solutions |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1197548A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358449A (en) * | 2021-05-21 | 2021-09-07 | 昆明理工大学 | 5 xxx-series Al-Mg alloy grain boundary corrosion solution and corrosion method |
-
1969
- 1969-03-13 GB GB1332769A patent/GB1197548A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358449A (en) * | 2021-05-21 | 2021-09-07 | 昆明理工大学 | 5 xxx-series Al-Mg alloy grain boundary corrosion solution and corrosion method |
| CN113358449B (en) * | 2021-05-21 | 2023-09-26 | 昆明理工大学 | 5xxx series Al-Mg alloy grain boundary corrosive liquid and corrosion method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents |