SE7800461L - Valskroppar av hardmetall - Google Patents

Valskroppar av hardmetall

Info

Publication number
SE7800461L
SE7800461L SE7800461A SE7800461A SE7800461L SE 7800461 L SE7800461 L SE 7800461L SE 7800461 A SE7800461 A SE 7800461A SE 7800461 A SE7800461 A SE 7800461A SE 7800461 L SE7800461 L SE 7800461L
Authority
SE
Sweden
Prior art keywords
wheels
carbon
carbon wheels
Prior art date
Application number
SE7800461A
Other languages
English (en)
Other versions
SE443807B (sv
Inventor
O Jung
F Kiefer
H Menne
W Schmidt
Original Assignee
Arbed
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Arbed filed Critical Arbed
Publication of SE7800461L publication Critical patent/SE7800461L/sv
Publication of SE443807B publication Critical patent/SE443807B/sv

Links

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)
SE7800461A 1977-01-27 1978-01-16 Valskropp av hardmetall pa basis av volframkarbid och kobolt SE443807B (sv)

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
SE7800461L true SE7800461L (sv) 1978-07-28
SE443807B SE443807B (sv) 1986-03-10

Family

ID=5999647

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7800461A SE443807B (sv) 1977-01-27 1978-01-16 Valskropp av hardmetall pa basis av volframkarbid och kobolt

Country Status (4)

Country Link
DE (1) DE2703261B2 (sv)
FR (1) FR2378578A1 (sv)
IT (1) IT1111158B (sv)
SE (1) SE443807B (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
IT1111158B (it) 1986-01-13
IT7819613A0 (it) 1978-01-26
FR2378578A1 (fr) 1978-08-25
DE2703261A1 (de) 1978-08-03
FR2378578B1 (sv) 1981-07-03
DE2703261B2 (de) 1978-11-16
SE443807B (sv) 1986-03-10

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