GB1311690A - Boriding - Google Patents
BoridingInfo
- Publication number
- GB1311690A GB1311690A GB1311690DA GB1311690A GB 1311690 A GB1311690 A GB 1311690A GB 1311690D A GB1311690D A GB 1311690DA GB 1311690 A GB1311690 A GB 1311690A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boriding
- rare gas
- agent
- boriding agent
- titanium
- 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
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B35/00—Boron; Compounds thereof
- C01B35/02—Boron; Borides
- C01B35/023—Boron
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Products (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
1311690 Boriding agent; titanium boride INSTITUT FUR HARTEREI-TECHNIK 7 Oct 1970 47741/70 Heading C1A A boriding agent for boriding a metal comprises amorphous boron, which has previously been ignited and cooled under a rare gas (preferably arcon), as boron donor. The boriding agent is produced by igniting amorphous boron at 850‹ to 1100‹ C. for 1 to 3 hours while a rare gas is simultaneously conducted through the boron, which is thereafter cooled with the further conduction therethrough of rare gas. The boriding agent may be providing with activators which increase the thickness of the hardened skin produced by the boriding agent on the treated material. Examples of activators are alkali metal, alkaline earth metal and ammonium halides. Also an inert substance which acts as a thinner, e.g. stable oxides, talc and asbestos may be included in the boriding agent. Titanium or titanium alloy workpieces when borided by this method generally have a hardened surface with a thickness of 0À04 to 0À1 mm. comprising the titanium borides TiB 2 and TiB. During the boriding operation, which occurs at 900‹ to 1400‹ C. for at least 3 hours rare gas is constantly conducted through the boriding agent in a vessel only with an inlet and outlet for the rare gas. The material is then cooled.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4774170 | 1970-10-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1311690A true GB1311690A (en) | 1973-03-28 |
Family
ID=10446090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1311690D Expired GB1311690A (en) | 1970-10-07 | 1970-10-07 | Boriding |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1311690A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2929634A1 (en) * | 1979-07-21 | 1981-01-29 | Motoren Turbinen Union | METHOD FOR THE PRODUCTION OF TURBO BLADES FROM TITANIUM OR TITANIUM BASED ALLOY WITH A HARD SURFACE |
-
1970
- 1970-10-07 GB GB1311690D patent/GB1311690A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2929634A1 (en) * | 1979-07-21 | 1981-01-29 | Motoren Turbinen Union | METHOD FOR THE PRODUCTION OF TURBO BLADES FROM TITANIUM OR TITANIUM BASED ALLOY WITH A HARD SURFACE |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |