FR2340496A1 - Tubes sans soudure en acier a usinabilite amelioree et leur procede de fabrication - Google Patents
Tubes sans soudure en acier a usinabilite amelioree et leur procede de fabricationInfo
- Publication number
- FR2340496A1 FR2340496A1 FR7603539A FR7603539A FR2340496A1 FR 2340496 A1 FR2340496 A1 FR 2340496A1 FR 7603539 A FR7603539 A FR 7603539A FR 7603539 A FR7603539 A FR 7603539A FR 2340496 A1 FR2340496 A1 FR 2340496A1
- Authority
- FR
- France
- Prior art keywords
- contg
- tube
- machinable
- sintering
- extruding
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0086—Conditioning, transformation of reduced iron ores
- C21B13/0093—Protecting against oxidation
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/008—Use of special additives or fluxing agents
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0235—Starting from compounds, e.g. oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lubricants (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7603539A FR2340496A1 (fr) | 1976-02-03 | 1976-02-03 | Tubes sans soudure en acier a usinabilite amelioree et leur procede de fabrication |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7603539A FR2340496A1 (fr) | 1976-02-03 | 1976-02-03 | Tubes sans soudure en acier a usinabilite amelioree et leur procede de fabrication |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2340496A1 true FR2340496A1 (fr) | 1977-09-02 |
FR2340496B1 FR2340496B1 (fr) | 1980-11-14 |
Family
ID=9168919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7603539A Granted FR2340496A1 (fr) | 1976-02-03 | 1976-02-03 | Tubes sans soudure en acier a usinabilite amelioree et leur procede de fabrication |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2340496A1 (fr) |
-
1976
- 1976-02-03 FR FR7603539A patent/FR2340496A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2340496B1 (fr) | 1980-11-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |