GB1313865A - Method of surface treatment of iron and iron alloys - Google Patents
Method of surface treatment of iron and iron alloysInfo
- Publication number
- GB1313865A GB1313865A GB2949270A GB2949270A GB1313865A GB 1313865 A GB1313865 A GB 1313865A GB 2949270 A GB2949270 A GB 2949270A GB 2949270 A GB2949270 A GB 2949270A GB 1313865 A GB1313865 A GB 1313865A
- Authority
- GB
- United Kingdom
- Prior art keywords
- borax
- gas
- zro
- boron
- heating
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C12/00—Solid state diffusion of at least one non-metal element other than silicon and at least one metal element or silicon into metallic material surfaces
- C23C12/02—Diffusion in one step
Abstract
1313865 Treating ferrous surfaces with zirconium and boron TOYOTA JIDOSHA KOGYO K K and TOYOTA CHUO KENKYUSHO KK 17 June 1970 [9 July 1969] 29492/70 Heading C7F and C7B Boron or an alloy thereof is formed with a diffusion layer of B and Zr by (1) heating in a powder mixture, (2) heating in a gas (3) immersing in a molten bath of e.g. borax, ZrO 2 , B 4 C and NaCl or (4) electrolytically. The powder in (1) may be B 4 C 1 FeB, borax, boracic acid, Fe-Zr, ZrO 2 and ZrX 4 , where X is a halogen with an additive which may be oxides, carbonates, phosphates or cyanates of alkali and alkaline earth metals or a lumina or silicon carbide. A binder e.g. ethyl silicate may be used. The gas in (2) may be BF 3 , BCl 3 BI 3 BBr 3 , B 2 H 6 , ZrF 4 , ZrCl 4 ZrBr 4 , ZrI 4 , used with a carrier gas of hydrogen, nitrogen, helium or argon. In the electrolytic method carbon steel as the cathode is immersed in a molten bath consisting of 85% borax and 15% zirconium oxide at 900‹C. for 2 hours at a current density of 12 amps lsq. decimeter. The coated steel may be subsequently quenched and then tempered at 550‹C. Similar examples are also described.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5386369 | 1969-07-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1313865A true GB1313865A (en) | 1973-04-18 |
Family
ID=12954594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2949270A Expired GB1313865A (en) | 1969-07-09 | 1970-06-17 | Method of surface treatment of iron and iron alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1313865A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111940611A (en) * | 2020-08-07 | 2020-11-17 | 和县卜集振兴标准件厂 | Method for improving precision of alloy steel stamping die |
-
1970
- 1970-06-17 GB GB2949270A patent/GB1313865A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111940611A (en) * | 2020-08-07 | 2020-11-17 | 和县卜集振兴标准件厂 | Method for improving precision of alloy steel stamping die |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2033899A1 (en) | 1971-01-21 |
| DE2033899B2 (en) | 1975-08-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |