EP0336189A2 - Utilisation d'un outil de tréfilage en carbure de silicium - Google Patents

Utilisation d'un outil de tréfilage en carbure de silicium Download PDF

Info

Publication number
EP0336189A2
EP0336189A2 EP89104917A EP89104917A EP0336189A2 EP 0336189 A2 EP0336189 A2 EP 0336189A2 EP 89104917 A EP89104917 A EP 89104917A EP 89104917 A EP89104917 A EP 89104917A EP 0336189 A2 EP0336189 A2 EP 0336189A2
Authority
EP
European Patent Office
Prior art keywords
silicon carbide
wire drawing
weight
wire
drawing tool
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.)
Withdrawn
Application number
EP89104917A
Other languages
German (de)
English (en)
Other versions
EP0336189A3 (fr
Inventor
Heinz Eichas
Kilian Dr. Dipl.-Ing. Friederich
Ulf Dr. Dipl.-Min. Dworak
Dieter Dr. Dipl.-Ing. Fingerle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Feldmuehle AG
Original Assignee
Feldmuehle AG
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 Feldmuehle AG filed Critical Feldmuehle AG
Publication of EP0336189A2 publication Critical patent/EP0336189A2/fr
Publication of EP0336189A3 publication Critical patent/EP0336189A3/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B21C3/04—Dies; Selection of material therefor; Cleaning thereof with non-adjustable section
    • 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
    • B21C9/00—Cooling, heating or lubricating drawing material
    • B21C9/02—Selection of compositions therefor
    • 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
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
    • B21C1/14—Drums, e.g. capstans; Connection of grippers thereto; Grippers specially adapted for drawing machines or apparatus of the drum type; Couplings specially adapted for these drums
    • 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

Definitions

  • the present invention relates to the use of a wire drawing tool made of silicon carbide in a method for drawing metal wire.
  • the wire drawing tools mentioned in the patent claims and description of the present application are to be understood as meaning the so-called wire drawing cones but also the tandem devices consisting of a large number of individual drawing rings provided with a separate drive.
  • the wire to be deformed wraps around each drawing ring, passes a drawing die and is then drawn to the next drawing ring, which rotates at a higher speed.
  • the wire drawing cones are also driven and are either solid or assembled from several drawing rings by assembly.
  • the wire to be deformed is drawn through a drawing die to the smallest diameter of the wire drawing cone and from there through another drawing die to the smallest one Diameter of the second wire drawing cone. From there, the wire passes through the next drawing die to the next larger diameter of the first wire cone, through another drawing die to the next larger diameter of the second wire drawing cone, etc., until the desired wire diameter is achieved.
  • a wire drawing device consists of several pairs of wire drawing cones.
  • the present invention has set itself the task of solving the present problem and provides the features of claim 1.
  • the excellent suitability of wire drawing tools made of silicon carbide in a wire drawing process of coated metal wire is probably due to the good thermal conductivity and the high hardness of silicon carbide.
  • the good thermal conductivity leads to the dissipation of the heat inevitably generated to the drawing liquid, so that thermal stresses which lead to damage to the structural structure practically do not occur.
  • the smooth surface which should preferably have a value expressed as the center roughness R a ⁇ 0.05 ⁇ m when the wire drawing tools are started up, is not only retained as a result, but is further increased during the wire drawing process.
  • the perfectly maintained smooth surface of the wire drawing tools causes a metal wire coated with highly sensitive and deformable - so-called ductile metals - in particular steel wire with a coating based on copper / zinc alloys its surface leaves the wire drawing device smooth and undamaged.
  • the use of wire drawing tools made of silicon carbide when drawing metal-coated wires also enables the use of the low-fat and low-oil emulsions which are usually used for the wire drawing of these wires for the tire industry.
  • the invention overcomes the disadvantage of insufficient corrosion resistance in wire drawing tools made of hardened steel or with a hard metal coating, such as were previously used in the wire drawing of so-called tire cord.
  • Si-infiltrated silicon carbide with an average grain size of 3 to 55 ⁇ m, preferably with an average grain size of 5 to 25 ⁇ m, has proven to be particularly suitable for achieving particularly wear-resistant surfaces in wire drawing tools, and an average grain size of has been found for silicon carbide sintered without pressure ⁇ 10 ⁇ m is shown to be particularly suitable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Ceramic Products (AREA)
  • Lubricants (AREA)
  • Inorganic Fibers (AREA)
EP19890104917 1988-04-07 1989-03-18 Utilisation d'un outil de tréfilage en carbure de silicium Withdrawn EP0336189A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3811608 1988-04-07
DE3811608 1988-04-07
DE3832706A DE3832706C1 (fr) 1988-04-07 1988-09-27
DE3832706 1988-09-27

Publications (2)

Publication Number Publication Date
EP0336189A2 true EP0336189A2 (fr) 1989-10-11
EP0336189A3 EP0336189A3 (fr) 1990-10-17

Family

ID=25866761

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890104917 Withdrawn EP0336189A3 (fr) 1988-04-07 1989-03-18 Utilisation d'un outil de tréfilage en carbure de silicium

Country Status (4)

Country Link
EP (1) EP0336189A3 (fr)
JP (1) JPH01299708A (fr)
KR (1) KR890015793A (fr)
DE (1) DE3832706C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2801229A1 (fr) * 1999-11-19 2001-05-25 Karl Simon Gmbh Et Co Kg Tringle pivotante pour serrure a tringles pivotantes et son procede de fabrication

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB732735A (en) * 1952-05-12 1955-06-29 Pennzoil Co Improvements in or relating to cold metal reduction by rolling, drawing or extruding
GB1068110A (en) * 1964-12-31 1967-05-10 Feldmuehle Ag Improvements in and relating to drawing cones
DE2119039A1 (de) * 1970-04-30 1971-11-11 Coors Porcelain Co Verbunddrehkopf
DE3615861A1 (de) * 1985-05-20 1986-11-20 Toshiba Ceramics Co., Ltd., Tokio/Tokyo Sinterkoerper auf basis des siliciumcarbid und verfahren zu seiner herstellung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2307655B2 (de) * 1973-02-16 1979-11-22 Feldmuehle Ag, 4000 Duesseldorf Werkstoff für auf Verschleiß beanspruchte Teile bei rinförmigen Werkzeugen, sowie ein Verfahren zu deren Herstellung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB732735A (en) * 1952-05-12 1955-06-29 Pennzoil Co Improvements in or relating to cold metal reduction by rolling, drawing or extruding
GB1068110A (en) * 1964-12-31 1967-05-10 Feldmuehle Ag Improvements in and relating to drawing cones
DE2119039A1 (de) * 1970-04-30 1971-11-11 Coors Porcelain Co Verbunddrehkopf
DE3615861A1 (de) * 1985-05-20 1986-11-20 Toshiba Ceramics Co., Ltd., Tokio/Tokyo Sinterkoerper auf basis des siliciumcarbid und verfahren zu seiner herstellung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2801229A1 (fr) * 1999-11-19 2001-05-25 Karl Simon Gmbh Et Co Kg Tringle pivotante pour serrure a tringles pivotantes et son procede de fabrication

Also Published As

Publication number Publication date
DE3832706C1 (fr) 1989-04-27
EP0336189A3 (fr) 1990-10-17
KR890015793A (ko) 1989-11-25
JPH01299708A (ja) 1989-12-04

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