DE29824794U1 - Cold drawn wire and spring - Google Patents

Cold drawn wire and spring

Info

Publication number
DE29824794U1
DE29824794U1 DE29824794U DE29824794U DE29824794U1 DE 29824794 U1 DE29824794 U1 DE 29824794U1 DE 29824794 U DE29824794 U DE 29824794U DE 29824794 U DE29824794 U DE 29824794U DE 29824794 U1 DE29824794 U1 DE 29824794U1
Authority
DE
Germany
Prior art keywords
max
cold drawn
drawn wire
slag
wire
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 - Lifetime
Application number
DE29824794U
Other languages
German (de)
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.)
Suzuki Garphyttan AB
Original Assignee
Suzuki Garphyttan AB
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
Priority claimed from SE9704753A external-priority patent/SE9704753L/en
Application filed by Suzuki Garphyttan AB filed Critical Suzuki Garphyttan AB
Publication of DE29824794U1 publication Critical patent/DE29824794U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/005—Manufacture of stainless steel
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/16—Remelting metals
    • C22B9/18—Electroslag remelting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/02—Hardening by precipitation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (5)

1. Kaltgezogener Draht aus ausscheidungshärtbarem bzw. wärme­ behandelbarem, nichtrostendem bzw. korrosionsbeständigem Stahl, der außer Eisen in Gewichtsprozent folgende Bestand­ teile enthält:
0,065-0,11% C
von Spuren bis zu max. 1,2% Si
0,2-1,3% Mn
15,8-18,2% Cr
6,0-7,9% Ni
0,5-1,5% Al
insgesamt max. 2% anderer möglicher Legierungselemente, der dadurch hergestellt ist, dass eine Metallschmelze mit der genannten chemischen Zusammensetzung in Block-, Barren- oder Strangform gegossen ist, die zerteilbar bzw. auftrennbar ist,
dass aus dem Block, Barren oder Strang, vorzugsweise nach der Wärmebearbeitung in die Form von Elektroden, durch Elektro-Schlacken-Umschmelzen (ESU) ESU-Barren gebildet sind,
dass die ESU-Barren mit abschließendem Drahtziehen wärmebe­ arbeitet, anschließend zur Herstellung eines gebeizten gezogenen Drahtes beizbehandelt, so dass sich in einer Oberflächenschicht bis zu 1 mm Tiefe (berechnet von der Oberfläche) in einen zentralen Längsbereich durch den Draht keine größeren Schlacke- oder Ascheeinschlüsse als 30 µm, vorzugsweise von nicht mehr als 20 µm, befinden, und dass der Draht mit einer Flächenreduktion von mindestens 30% kaltgezogen ist.1. Cold drawn wire made of precipitation hardenable or heat treatable, rustproof or corrosion resistant steel, which contains the following components in addition to iron in percent by weight:
0.065-0.11% C
from traces to max. 1.2% Si
0.2-1.3% Mn
15.8-18.2% Cr
6.0-7.9% Ni
0.5-1.5% Al
total max. 2% of other possible alloy elements, which is produced by casting a molten metal with the chemical composition mentioned in block, ingot or strand form, which can be split or separated,
that ESU bars are formed from the block, bars or strand, preferably after heat processing into the form of electrodes, by electro-slag remelting (ESR),
that the ESU ingot works with final wire drawing, then treated to produce a pickled drawn wire, so that in a surface layer up to 1 mm deep (calculated from the surface) in a central longitudinal area through the wire no major inclusions of slag or ash than 30 microns, preferably not more than 20 microns, and that the wire is cold drawn with a reduction in area of at least 30%. 2. Kaltgezogener Draht nach Anspruch 1, dadurch gekennzeichnet, dass dieser in einer Oberflächenschicht von 1 mm Tiefe keine Schlacke- oder dergleichen Einschlüsse als CaO, Al2O3 und MgO-Typ mit mehr als 30 µm, vorzugsweise mit weniger als 25 µm Größe aufweist und durch ESU-Umschmelzen des Stahlmaterials vor dem Warmwalzen und dem Kaltwalzen zur Drahtform hergestellt ist.2. Cold drawn wire according to claim 1, characterized in that in a surface layer of 1 mm depth no slag or similar inclusions as CaO, Al 2 O 3 and MgO type with more than 30 µm, preferably with less than 25 µm in size has and is made by ESU remelting the steel material before hot rolling and cold rolling to wire shape. 3. Kaltgezogener Draht nach Anspruch 2, dadurch gekennzeichnet, dass die Oberflächenschicht in Zonen größer als 100 µm frei ist von Konzentrationen kleiner Schlacke- und oder der­ gleichen Einschlüsse.3. Cold drawn wire according to claim 2, characterized, that the surface layer is free in zones larger than 100 µm is of concentrations of small slag and or same inclusions. 4. Kaltgezogener Draht nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der ausscheidungshärtbare, nichtrostende Stahl ausser Eisen folgende Bestandteile in Gewichtsprozent aufweist
0,03-0,1%, vorzugsweise 0,075-0,09% C
0,1-0,8%, vorzugsweise 0,2-0,7% Si
0,5-1,1%, vorzugsweise 0,7-1,0% Mn
max. 0,05%, vorzugsweise max. 0,03% P
max. 0,04%, vorzugsweise max. 0,02% S
16,0-17,4%, vorzugsweise 16,5-17,0% Cr
6,8-7,8%, vorzugsweise 7,0-7,75% Ni
0,6-1,3%, vorzugsweise 0,75-1,0% Al
max. 0,5% Mo
max. 0,5% Co
max. 0,5% Cu
max. 0,1%, vorzugsweise max. 0,050% N
max. 0,2%, vorzugsweise max. 0,01% Ti.4. Cold drawn wire according to one of claims 1 to 3, characterized in that the precipitation-hardenable, stainless steel has the following components in addition to iron in percent by weight
0.03-0.1%, preferably 0.075-0.09% C
0.1-0.8%, preferably 0.2-0.7% Si
0.5-1.1%, preferably 0.7-1.0% Mn
Max. 0.05%, preferably max. 0.03% P
Max. 0.04%, preferably max. 0.02% S
16.0-17.4%, preferably 16.5-17.0% Cr
6.8-7.8%, preferably 7.0-7.75% Ni
0.6-1.3%, preferably 0.75-1.0% Al
Max. 0.5% Mo
Max. 0.5% Co
Max. 0.5% Cu
Max. 0.1%, preferably max. 0.050% N
Max. 0.2%, preferably max. 0.01% Ti. 5. Feder, hergestellt durch Spinnen bzw. Drücken eines kalt­ gezogenen Drahts nach einem der Ansprüche 1 bis 4, der anschließend durch Behandlung bei einer Temperatur von 450 bis 500°C für 0,5 bis 2 Stunden ausscheidungsgehärtet ist.5. Spring made by spinning or pressing a cold drawn wire according to any one of claims 1 to 4, the then by treatment at a temperature of 450 is precipitation hardened to 500 ° C for 0.5 to 2 hours.
DE29824794U 1997-12-17 1998-12-08 Cold drawn wire and spring Expired - Lifetime DE29824794U1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9704753A SE9704753L (en) 1997-12-17 1997-12-17 Ways to make cold drawn wire of ESR remelted stainless steel and cold drawn wire
EP98963686A EP1042516B1 (en) 1997-12-17 1998-12-08 Cold drawn wire and method for the manufacturing of such wire

Publications (1)

Publication Number Publication Date
DE29824794U1 true DE29824794U1 (en) 2002-09-05

Family

ID=26152823

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29824794U Expired - Lifetime DE29824794U1 (en) 1997-12-17 1998-12-08 Cold drawn wire and spring

Country Status (1)

Country Link
DE (1) DE29824794U1 (en)

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20021010

R150 Term of protection extended to 6 years

Effective date: 20020905

R151 Term of protection extended to 8 years

Effective date: 20050124

R158 Lapse of ip right after 8 years

Effective date: 20070703