GB515455A - Improvements in or relating to the production of decorative finishes on metal products - Google Patents
Improvements in or relating to the production of decorative finishes on metal productsInfo
- Publication number
- GB515455A GB515455A GB1659338A GB1659338A GB515455A GB 515455 A GB515455 A GB 515455A GB 1659338 A GB1659338 A GB 1659338A GB 1659338 A GB1659338 A GB 1659338A GB 515455 A GB515455 A GB 515455A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reduction
- per cent
- final
- annealing
- increase
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- ing And Chemical Polishing (AREA)
- Metal Rolling (AREA)
- Laminated Bodies (AREA)
Abstract
515,455. Altering physical structure. COOK, M., MACQUARIE, C., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 2, 1938, No. 16593. [Classes 83 (ii) and 83 (iv)] Making ornamental metalwork.-Copper and copper-rich alloys are provided with a decorative surface finish by severe cold working followed by high temperature annealing to increase the grain size and then etching. The cold working effects a reduction of at least 96 per cent., may be carried out in several stages, and the heat treatment is at 1,000‹ C. If intermediate annealing at 550‹ C. be adopted, the final reduction must be 85 per cent. and final annealing temperature 1,000‹ C. The intermediate and final temperatures may be 900 and 750‹ C. respectively. Thirty to 70 per cent of the reduction may be. by cross -'rolling with intermediate annealing at 500 to 600 C. and final at 750 to 850‹ C. In another modification employing cross-rolling the penultimate annealing temperature is 450‹ C. and the penultimate reduction is from 85 to 90 per cent. Only a part of the metal surface may be treated to increase the crystal size; the whole sheet, tube &c. being cold rolled to an extent just below that required to produce the increase, and the areas where large crystals are required are then further worked by hammering or pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1659338A GB515455A (en) | 1938-06-02 | 1938-06-02 | Improvements in or relating to the production of decorative finishes on metal products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1659338A GB515455A (en) | 1938-06-02 | 1938-06-02 | Improvements in or relating to the production of decorative finishes on metal products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB515455A true GB515455A (en) | 1939-12-05 |
Family
ID=10080123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1659338A Expired GB515455A (en) | 1938-06-02 | 1938-06-02 | Improvements in or relating to the production of decorative finishes on metal products |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB515455A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112941517A (en) * | 2019-12-11 | 2021-06-11 | 日本碍子株式会社 | Article having excellent design and method for producing same |
-
1938
- 1938-06-02 GB GB1659338A patent/GB515455A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112941517A (en) * | 2019-12-11 | 2021-06-11 | 日本碍子株式会社 | Article having excellent design and method for producing same |
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