JPS4984931A - - Google Patents
Info
- Publication number
- JPS4984931A JPS4984931A JP1701673A JP1701673A JPS4984931A JP S4984931 A JPS4984931 A JP S4984931A JP 1701673 A JP1701673 A JP 1701673A JP 1701673 A JP1701673 A JP 1701673A JP S4984931 A JPS4984931 A JP S4984931A
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/76—Adjusting the composition of the atmosphere
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
- C21D3/02—Extraction of non-metals
- C21D3/04—Decarburising
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Chemical Treatment Of Metals (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7204448A FR2170971A1 (en) | 1972-02-10 | 1972-02-10 | Corrosion resistant steel - by heating in moist atmosphere of nitrogen and hydrogen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4984931A true JPS4984931A (ja) | 1974-08-15 |
Family
ID=9093271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1701673A Pending JPS4984931A (ja) | 1972-02-10 | 1973-02-10 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4984931A (ja) |
| BE (1) | BE794528A (ja) |
| DE (1) | DE2305996A1 (ja) |
| FR (1) | FR2170971A1 (ja) |
| IT (1) | IT984363B (ja) |
| LU (1) | LU66991A1 (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4334938A (en) * | 1980-08-22 | 1982-06-15 | Air Products And Chemicals, Inc. | Inhibited annealing of ferrous metals containing chromium |
-
0
- BE BE794528D patent/BE794528A/xx unknown
-
1972
- 1972-02-10 FR FR7204448A patent/FR2170971A1/fr active Granted
-
1973
- 1973-02-07 DE DE19732305996 patent/DE2305996A1/de active Pending
- 1973-02-08 LU LU66991D patent/LU66991A1/xx unknown
- 1973-02-09 IT IT4730973A patent/IT984363B/it active
- 1973-02-10 JP JP1701673A patent/JPS4984931A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2170971B1 (ja) | 1974-06-28 |
| IT984363B (it) | 1974-11-20 |
| FR2170971A1 (en) | 1973-09-21 |
| DE2305996A1 (de) | 1973-08-16 |
| LU66991A1 (ja) | 1973-04-19 |
| BE794528A (fr) | 1973-05-16 |