GB1414746A - Process of nitriding ferrous parts - Google Patents
Process of nitriding ferrous partsInfo
- Publication number
- GB1414746A GB1414746A GB948173A GB948173A GB1414746A GB 1414746 A GB1414746 A GB 1414746A GB 948173 A GB948173 A GB 948173A GB 948173 A GB948173 A GB 948173A GB 1414746 A GB1414746 A GB 1414746A
- Authority
- GB
- United Kingdom
- Prior art keywords
- parts
- nitriding
- nitriding atmosphere
- carrier gas
- gas
- 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/24—Nitriding
- C23C8/26—Nitriding of ferrous surfaces
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Catalysts (AREA)
Abstract
1414746 Gas nitriding ferrous parts MIDLAND-ROSS CORP 27 Feb 1973 [13 April 1972] 9481/73 Heading C7U Ferrous parts are nitrided by placing in a furnace and heating to 1,000F to 1200F in a nitriding atmosphere consisting of a non-combustible carrier gas and 5 to 25% by volume of ammonia, the hydrogen content of the nitriding atmosphere being maintained between 3% and 10% by volume by introducing additional non-combustible carrier gas while withdrawing portions of the nitriding atmosphere, the parts being subjected to the nitriding atmosphere for ¢ to 10 hours until a compound layer of complex nitrides of a thickness of approximately 0.0005" and composed principally of epsilon phase iron nitride exists at the surface of the parts. The carrier gas may be of composition 95-97% nitrogen, ¢-1¢% carbon monoxide and 2-4% hydrogen and may be obtained by reacting air with methane or natural gas and removing CO 2 and water from the resulting mixture.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24382472A | 1972-04-13 | 1972-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1414746A true GB1414746A (en) | 1975-11-19 |
Family
ID=22920283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB948173A Expired GB1414746A (en) | 1972-04-13 | 1973-02-27 | Process of nitriding ferrous parts |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5317982B2 (en) |
| KR (1) | KR800000216B1 (en) |
| AU (1) | AU473425B2 (en) |
| BR (1) | BR7302525D0 (en) |
| CA (1) | CA991963A (en) |
| DE (1) | DE2315165B2 (en) |
| ES (1) | ES412463A1 (en) |
| FR (1) | FR2179879B1 (en) |
| GB (1) | GB1414746A (en) |
| IN (1) | IN138930B (en) |
| IT (1) | IT981703B (en) |
| RO (1) | RO62628A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2429845A1 (en) * | 1978-06-27 | 1980-01-25 | Honda Motor Co Ltd | PRE-TREATMENT PROCESS BY GENTLE NITRURATION OF A SUBSTRATE TO BE PAINTED |
| FR2461019A1 (en) * | 1979-07-09 | 1981-01-30 | Honda Motor Co Ltd | Gas phase soft nitriding metal workpieces - using gas mixt. contg. relatively low amt. of ammonia |
| WO2013002633A1 (en) * | 2011-06-30 | 2013-01-03 | Robert Bosch Gmbh | Manufacturing method for a drive belt ring component |
| CN107010610A (en) * | 2017-06-13 | 2017-08-04 | 王兆兵 | A kind of energy-efficient high purity silicon nitride manganese production system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2173513B (en) * | 1985-02-25 | 1989-06-14 | Lucas Ind Plc | Making of steel component |
| NL1039971C2 (en) * | 2012-12-24 | 2014-06-25 | Bosch Gmbh Robert | Heat treatment process in a manufacturing method of a ring set for a drive belt. |
-
1973
- 1973-01-17 CA CA161,449A patent/CA991963A/en not_active Expired
- 1973-02-27 GB GB948173A patent/GB1414746A/en not_active Expired
- 1973-03-08 AU AU53106/73A patent/AU473425B2/en not_active Expired
- 1973-03-08 ES ES412463A patent/ES412463A1/en not_active Expired
- 1973-03-27 DE DE19732315165 patent/DE2315165B2/en not_active Withdrawn
- 1973-03-28 IT IT22269/73A patent/IT981703B/en active
- 1973-04-04 JP JP3862173A patent/JPS5317982B2/ja not_active Expired
- 1973-04-09 BR BR732525A patent/BR7302525D0/en unknown
- 1973-04-10 FR FR7312762A patent/FR2179879B1/fr not_active Expired
- 1973-04-10 KR KR7300570A patent/KR800000216B1/en active
- 1973-04-12 IN IN866/CAL/73A patent/IN138930B/en unknown
- 1973-04-12 RO RO7300074462A patent/RO62628A/en unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2429845A1 (en) * | 1978-06-27 | 1980-01-25 | Honda Motor Co Ltd | PRE-TREATMENT PROCESS BY GENTLE NITRURATION OF A SUBSTRATE TO BE PAINTED |
| FR2461019A1 (en) * | 1979-07-09 | 1981-01-30 | Honda Motor Co Ltd | Gas phase soft nitriding metal workpieces - using gas mixt. contg. relatively low amt. of ammonia |
| WO2013002633A1 (en) * | 2011-06-30 | 2013-01-03 | Robert Bosch Gmbh | Manufacturing method for a drive belt ring component |
| CN103732782A (en) * | 2011-06-30 | 2014-04-16 | 罗伯特·博世有限公司 | Manufacturing method for a drive belt ring component |
| CN107010610A (en) * | 2017-06-13 | 2017-08-04 | 王兆兵 | A kind of energy-efficient high purity silicon nitride manganese production system |
| CN107010610B (en) * | 2017-06-13 | 2023-09-19 | 王兆兵 | High-efficiency energy-saving high-purity manganese nitride production system |
Also Published As
| Publication number | Publication date |
|---|---|
| CA991963A (en) | 1976-06-29 |
| AU5310673A (en) | 1974-09-12 |
| FR2179879B1 (en) | 1976-05-21 |
| DE2315165A1 (en) | 1973-10-18 |
| DE2315165B2 (en) | 1977-01-20 |
| BR7302525D0 (en) | 1974-06-27 |
| IT981703B (en) | 1974-10-10 |
| KR800000216B1 (en) | 1980-03-22 |
| JPS4917328A (en) | 1974-02-15 |
| FR2179879A1 (en) | 1973-11-23 |
| AU473425B2 (en) | 1976-06-24 |
| RO62628A (en) | 1978-03-15 |
| JPS5317982B2 (en) | 1978-06-12 |
| ES412463A1 (en) | 1976-05-01 |
| IN138930B (en) | 1976-04-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |