IT1111158B - Corpo di cilindro di metallo duro - Google Patents
Corpo di cilindro di metallo duroInfo
- Publication number
- IT1111158B IT1111158B IT19613/78A IT1961378A IT1111158B IT 1111158 B IT1111158 B IT 1111158B IT 19613/78 A IT19613/78 A IT 19613/78A IT 1961378 A IT1961378 A IT 1961378A IT 1111158 B IT1111158 B IT 1111158B
- Authority
- IT
- Italy
- Prior art keywords
- cylinder body
- hard metal
- metal cylinder
- hard
- metal
- Prior art date
Links
- 239000002184 metal Substances 0.000 title 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
- E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/163—Rolling or cold-forming of concrete reinforcement bars or wire ; Rolls therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/08—Advancing mechanisms
- E21D23/081—Advancing mechanisms forming parts of the roof supports
- E21D23/085—Advancing mechanisms forming parts of the roof supports acting on a conveyor or a guide for the mining machine
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2703261A DE2703261B2 (de) | 1977-01-27 | 1977-01-27 | Walzenkörper aus Hartmetall |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7819613A0 IT7819613A0 (it) | 1978-01-26 |
IT1111158B true IT1111158B (it) | 1986-01-13 |
Family
ID=5999647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT19613/78A IT1111158B (it) | 1977-01-27 | 1978-01-26 | Corpo di cilindro di metallo duro |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2703261B2 (it) |
FR (1) | FR2378578A1 (it) |
IT (1) | IT1111158B (it) |
SE (1) | SE443807B (it) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1119850A (en) * | 1978-12-04 | 1982-03-16 | William M. Stoll | Roll for hot forming steel rod |
US4698884A (en) * | 1983-03-28 | 1987-10-13 | Kennametal Inc. | Roll for hot forming steel rod |
IT1282011B1 (it) * | 1996-02-07 | 1998-03-06 | Alfa Acciai S R L | Procedimento per la produzione di reti in acciaio elettrosaldate ad alta duttilita',particolarmente per l'impiego come armature |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE941869C (de) * | 1939-05-27 | 1956-04-19 | Eisen & Stahlind Ag | Verwendung von Hartmetallegierungen |
DE1019470B (de) * | 1953-12-16 | 1957-11-14 | Eisen & Stahlind Ag | Verwendung einer Hartmetallegierung |
US3512962A (en) * | 1966-01-03 | 1970-05-19 | Iit Res Inst | Cobalt-tungsten carbide alloy and process |
US3647401A (en) * | 1969-06-04 | 1972-03-07 | Du Pont | Anisodimensional tungsten carbide platelets bonded with cobalt |
-
1977
- 1977-01-27 DE DE2703261A patent/DE2703261B2/de not_active Ceased
-
1978
- 1978-01-09 FR FR7800421A patent/FR2378578A1/fr active Granted
- 1978-01-16 SE SE7800461A patent/SE443807B/sv not_active IP Right Cessation
- 1978-01-26 IT IT19613/78A patent/IT1111158B/it active
Also Published As
Publication number | Publication date |
---|---|
SE7800461L (sv) | 1978-07-28 |
FR2378578B1 (it) | 1981-07-03 |
DE2703261A1 (de) | 1978-08-03 |
SE443807B (sv) | 1986-03-10 |
DE2703261B2 (de) | 1978-11-16 |
FR2378578A1 (fr) | 1978-08-25 |
IT7819613A0 (it) | 1978-01-26 |
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