GB1289730A - - Google Patents

Info

Publication number
GB1289730A
GB1289730A GB1289730DA GB1289730A GB 1289730 A GB1289730 A GB 1289730A GB 1289730D A GB1289730D A GB 1289730DA GB 1289730 A GB1289730 A GB 1289730A
Authority
GB
United Kingdom
Prior art keywords
die
straightening
forging
extruding
nov
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
Application number
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 filed Critical
Publication of GB1289730A publication Critical patent/GB1289730A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/584—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/02—Dies; Selection of material therefor; Cleaning thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/584—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride
    • C04B35/591—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride obtained by reaction sintering

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Products (AREA)
  • Extrusion Of Metal (AREA)
  • Metal Extraction Processes (AREA)

Abstract

1289730 Drawing; extruding; making dies and mandrels; straightening; forging D C NICHOLS 5 Nov 1970 [15 Nov 1969] 56018/69 Headings B3A B3E B3H and B3P A die or mandrel for drawing, extruding, forging or straightening has a bearing surface 11 of silicon nitride. Examples described include a tube drawing mandrel, a die for hot or cold drawing, Fig. 1, a die for the hot or cold extrusion of a bolt blank (Fig. 3, not shown) and a straightening die (Figs. 5 and 6, not shown). The silicon nitride surface may be formed by flame spraying a silicon powder followed by nitriding. Alternatively, the silicon powder, which may contain 1-5% MgO, is made into a blank which is partially nitrided, machined to the desired shape and then fully nitrided.
GB1289730D 1969-11-15 1969-11-15 Expired GB1289730A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5601869 1969-11-15

Publications (1)

Publication Number Publication Date
GB1289730A true GB1289730A (en) 1972-09-20

Family

ID=10475528

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1289730D Expired GB1289730A (en) 1969-11-15 1969-11-15

Country Status (8)

Country Link
JP (1) JPS508033B1 (en)
AT (1) AT309367B (en)
BE (1) BE758922A (en)
DE (1) DE2055169A1 (en)
FR (1) FR2074920A5 (en)
GB (1) GB1289730A (en)
NL (1) NL7016662A (en)
SE (1) SE380188B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095449A (en) * 1975-06-09 1978-06-20 The Valeron Corporation Coated punch
US4468947A (en) * 1980-12-27 1984-09-04 Ngk Spark Plug Co., Ltd. Die
US4756180A (en) * 1984-09-07 1988-07-12 Sumitomo Electric Industries, Ltd. Method of hot rolling for iron and iron alloy rods
WO1994005439A1 (en) * 1992-09-03 1994-03-17 Neumann Steel Pty. Ltd. Adjustable re-usable ceramic inserts
EP3338904A1 (en) * 2016-12-22 2018-06-27 Euromicron Werkzeuge GmbH Die and method for manufacturing the same
CN109226299A (en) * 2018-11-09 2019-01-18 东南大学 A kind of lamination self-lubrication ceramic wire-drawing die and preparation method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1443158A (en) * 1972-12-05 1976-07-21 Std Services Ltd Silon carbide for cold drawing tools

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095449A (en) * 1975-06-09 1978-06-20 The Valeron Corporation Coated punch
US4468947A (en) * 1980-12-27 1984-09-04 Ngk Spark Plug Co., Ltd. Die
US4756180A (en) * 1984-09-07 1988-07-12 Sumitomo Electric Industries, Ltd. Method of hot rolling for iron and iron alloy rods
WO1994005439A1 (en) * 1992-09-03 1994-03-17 Neumann Steel Pty. Ltd. Adjustable re-usable ceramic inserts
EP3338904A1 (en) * 2016-12-22 2018-06-27 Euromicron Werkzeuge GmbH Die and method for manufacturing the same
CN109226299A (en) * 2018-11-09 2019-01-18 东南大学 A kind of lamination self-lubrication ceramic wire-drawing die and preparation method thereof

Also Published As

Publication number Publication date
FR2074920A5 (en) 1971-10-08
BE758922A (en) 1971-04-16
NL7016662A (en) 1971-05-18
DE2055169A1 (en) 1971-05-19
SE380188B (en) 1975-11-03
JPS508033B1 (en) 1975-04-01
AT309367B (en) 1973-08-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee