DE4206427C2 - Use of a steel for the production of cutter knives - Google Patents

Use of a steel for the production of cutter knives

Info

Publication number
DE4206427C2
DE4206427C2 DE19924206427 DE4206427A DE4206427C2 DE 4206427 C2 DE4206427 C2 DE 4206427C2 DE 19924206427 DE19924206427 DE 19924206427 DE 4206427 A DE4206427 A DE 4206427A DE 4206427 C2 DE4206427 C2 DE 4206427C2
Authority
DE
Germany
Prior art keywords
steel
cutter knives
production
cutter
knives
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
DE19924206427
Other languages
German (de)
Other versions
DE4206427A1 (en
Inventor
Hans-Joachim Wagner
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.)
BESTAR STAHLHANDELS GmbH
Original Assignee
BESTAR STAHLHANDELS GmbH
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 BESTAR STAHLHANDELS GmbH filed Critical BESTAR STAHLHANDELS GmbH
Priority to DE19924206427 priority Critical patent/DE4206427C2/en
Priority to EP93102921A priority patent/EP0559073A1/en
Publication of DE4206427A1 publication Critical patent/DE4206427A1/en
Application granted granted Critical
Publication of DE4206427C2 publication Critical patent/DE4206427C2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B02C18/20—Sickle-shaped knives
    • 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • 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
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • 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
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Accessories And Tools For Shearing Machines (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Description

Die Erfindung betrifft die Verwendung eines Stahls, der in seinen Eigenschaften hochfest, möglichst verschleißfest, zäh und korrosionsbeständig ist, für die Herstellung von Kuttermessern.The invention relates to the use of a steel, the high-strength in its properties, as wear-resistant as possible, tough and resistant to corrosion, for manufacturing of cutter knives.

Kuttermesser werden zur Zerkleinerung und Mischung von Fleisch und Fettgewebe verwendet, beispielsweise bei der Herstellung von Brühwurstbräten. Kuttermesser müssen unterschiedlichste mechanische Anforderungen erfüllen, da sie das Material sowohl schneiden, mischen wie auch scheren. Diese mechanischen Anforderungen bedingen auch besondere Werkstoffanforderungen.Cutter knives are used for crushing and mixing of Meat and fatty tissue used, for example in the Production of cooked sausages. Cutter knives need meet a wide variety of mechanical requirements, because they both cut, mix and mix the material scissors. These mechanical requirements also require special material requirements.

Beim Schneiden von Fleisch und Fett treten entsprechende Flüssigkeiten auf, die insbesondere salzartig oder säureartig sind. Entsprechend wird von einem Kuttermesser eine gute Korrosionsbeständigkeit gefordert. Weiter werden Kuttermesser in Rotationsmaschinen mit hohen Drehzahlen eingesetzt. Dies bedingt eine entsprechende Zähigkeit. Eine möglichst gleichbleibende Schneideigenschaft geht mit einer Forderung nach einer hohen Härte einher. Dabei sollen aber möglichst auch dann keine Beschädigungen auftreten, wenn die zu bearbeitenden Fleischstücke größere mechanische Widerstände entgegensetzen, wie beispielsweise Knochenteile oder tiefgefrorene Fleischteile. Darüber hinaus sollen natürlich auch die Anforderungen an eine hohe Produktivität erfüllt sein, was werkstoffmäßig einen guten Verschleißwiderstand erfordert im Hinblick auf eine möglichst hohe Standzeit.When cutting meat and fat occur appropriate Liquids, in particular salt-like or acidic are. Accordingly, from a cutter knife a good corrosion resistance required. Continue to be Cutter knives in rotary machines with high speeds used. This requires a corresponding toughness. A consistent cutting property goes accompanied by a demand for high hardness. there but should not be damaged occur when the pieces of meat to be processed larger oppose mechanical resistance, such as Bone parts or frozen meat parts. In addition, of course, the requirements to be met at a high productivity, what material Good wear resistance is required with regard to on the highest possible service life.

Derartiger Stahl ist bereits aus der DE-PS 39 37 031 bekannt. Der dort in seiner Zusammensetzung angegebene Stahl hat aber in der Praxis die gewünschten Ergebnisse nicht in jeder Hinsicht erbracht.Such steel is already known from DE-PS 39 37 031 known. The specified there in its composition  However, steel has the desired results in practice not provided in every way.

Es besteht daher ein Bedürfnis, einen anderen Stahl zur Verwendung für die Herstellung von Kuttermessern anzugeben.There is therefore a need to use a different steel Use for the manufacture of cutter knives.

Zur Lösung dieser Aufgabe schlägt die Erfindung vor, einen Stahl mit folgender Analyse zu verwenden (in Gew.-%):To solve this problem, the invention proposes to use a steel with the following analysis (in% by weight):

C|= 0,68 - 0,75%C | = 0.68 - 0.75% SiSi = weniger als 1,00%= less than 1.00% MnMn = weniger als 1,00%= less than 1.00% VV = 0,5 - 0,7%= 0.5 - 0.7% MoMo = 1,71 - 2,00%= 1.71 - 2.00% NbNb = 0,70 - 0,86%= 0.70 - 0.86% CrCr = 14,0 - 15,00%= 14.0 - 15.00% FeFe = Rest= Rest

Ein Stahl gemäß vorgenannter Analyse läßt sich überraschend gut für Kuttermesser einsetzen, da die teilweise unterschiedlichen Zielrichtungen wie hoher Verschleißwiderstand und gute Zähigkeitseigenschaften bei vor allem guter Korrosionsbeständigkeit von dem genannten Stahl im Hinblick auf die Anwendung bei Kuttermessern optimiert sind. Bei relativ niedrigem Kohlenstoffgehalt ergibt sich durch einen gegenüber dem Stand der Technik angehobenen Chrom- und Molybdängehalt eine Verbesserung der Korrosionsbeständigkeit. Da beide Legierungselemente aber auch Karbidbildner sind, wird der Karbidanteil in Verbindung mit der Nb-Zuleitung erhöht, der Verschleißwiderstand steigt. Gleichzeitig ist durch die Wahl eines relativ niedrigen Gehaltes an Kohlenstoff und Vanadium die Bildung großer Vanadium-Karbide verhindert, so daß als Verschleißträger die feineren Chrom- und Molybdänkarbide vorrangig werden. Der Stahl zeichnet sich gegenüber bekannten für die Herstellung von Kuttermessern verwendeten Stählen durch einen hohen Verschleißwiderstand in Verbindung mit einer hohen Zähigkeit bei verbesserter Korrosionsbeständigkeit aus.A steel according to the aforementioned analysis can be surprising good for cutter knife use, since the partial different objectives such as high wear resistance and good toughness properties in particular good corrosion resistance of said steel in Optimized for use with cutter knives are. At relatively low carbon content results raised by a relative to the prior art Chromium and molybdenum content improves the Corrosion resistance. As both alloying elements but carbide are also, the carbide content in Connection with the Nb feed line increases, the wear resistance increases. At the same time, by choosing one relatively low content of carbon and vanadium prevents the formation of large vanadium carbides, so that  as a wear carrier, the finer chromium and molybdenum carbides become a priority. The steel is opposite known used for the production of cutter knives Steels due to a high wear resistance in Compound with a high toughness at improved Corrosion resistance.

Claims (2)

1. Verwendung eines Chrom-Molybdänstahls, bestehend aus (in Gew.-%) 0,68 - 0,75% C,
weniger als 1% Si,
weniger als 1% Mn,
1,71 - 2,00% Mo,
0,5 - 0,7% V,
0,70 - 0,86% Nb,
14,0 - 15,0% Cr und
Eisen mit erschmelzungsbedingten Verunreinigungen als Rest,als Werkstoff zur Herstellung von Kuttermessern.1. Use of a chromium-molybdenum steel, consisting of (in% by weight) 0.68-0.75% C,
less than 1% Si,
less than 1% Mn,
1.71-2.00% Mo,
0.5-0.7% V,
0.70 - 0.86% Nb,
14.0 - 15.0% Cr and
Iron with melting impurities as the remainder, as a material for making cutter knives. 2. Verwendung eines Stahls nach Anspruch 1, bestehend aus 0,7% C, 0,5% Si, 0,5% Mn, 1,8% Mo, 0,8% Nb, 14,5% Cr, 0,5-0,7% Vanadium und Eisen mit erschmelzungsbedingten Verunreinigungen als Rest, für den Zweck nach Anspruch 1.2. Use of a steel according to claim 1, consisting of 0.7% C, 0.5% Si, 0.5% Mn, 1.8% Mo, 0.8% Nb, 14.5% Cr, 0.5-0.7% vanadium and iron with melting Impurities as rest, for the purpose Claim 1.
DE19924206427 1992-02-29 1992-02-29 Use of a steel for the production of cutter knives Expired - Lifetime DE4206427C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19924206427 DE4206427C2 (en) 1992-02-29 1992-02-29 Use of a steel for the production of cutter knives
EP93102921A EP0559073A1 (en) 1992-02-29 1993-02-25 Use of a steel for the manufacturing of cutter knives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924206427 DE4206427C2 (en) 1992-02-29 1992-02-29 Use of a steel for the production of cutter knives

Publications (2)

Publication Number Publication Date
DE4206427A1 DE4206427A1 (en) 1993-09-02
DE4206427C2 true DE4206427C2 (en) 1994-02-03

Family

ID=6452958

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19924206427 Expired - Lifetime DE4206427C2 (en) 1992-02-29 1992-02-29 Use of a steel for the production of cutter knives

Country Status (2)

Country Link
EP (1) EP0559073A1 (en)
DE (1) DE4206427C2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE301656B (en) * 1967-06-30 1968-06-17 Sandvikens Jernverks Ab
EP0020793B1 (en) * 1979-06-08 1984-12-12 Henrik Giflo High-strength stainless steel, well suited for polishing and resistant to acids
DE3901470C1 (en) * 1989-01-19 1990-08-09 Vereinigte Schmiedewerke Gmbh, 4630 Bochum, De Cold-working steel and its use
DE3937031C1 (en) * 1989-11-07 1990-09-13 Steffens Walter Gmbh Co Conversion of work material to martensitic chromium steel - for prepn. of sharp knives

Also Published As

Publication number Publication date
EP0559073A1 (en) 1993-09-08
DE4206427A1 (en) 1993-09-02

Similar Documents

Publication Publication Date Title
DE3117539C2 (en)
DE2722972C2 (en) High-speed steel containing nitrogen produced using the powder metallurgy process
DE69218779T2 (en) POWDER METALLURGICALLY PRODUCED FAST WORK STEEL
EP0214679B2 (en) Oxidation-resistant hard metal alloy
DE2908656A1 (en) Sintered carbide
DE2937460C2 (en)
DE4206427C2 (en) Use of a steel for the production of cutter knives
DE60011115T2 (en) STEEL MATERIAL, ITS USE AND MANUFACTURE
DE2922638C2 (en)
EP0105861B1 (en) High speed steel alloy
DE3101701A1 (en) WEAR-RESISTANT CAST IRON
DE1680437C2 (en) Anti-skid studs, in particular for vehicle tires
DE69021941T2 (en) Sulphurized stainless austenitic steel with increased machinability.
DE2945431C1 (en) Use of an alloy for flame spraying
EP0632139A1 (en) Application of a hot working steel
DE3718771C2 (en) Process for producing an automatic bar steel
DE3304821C2 (en) Use of a non-magnetic alloy as a material for electromagnetic stirring rollers
DE2243009A1 (en) HEAT-RESISTANT AND ABRASION RESISTANT Sintered ALLOY
DE3626435C2 (en)
DE1533337B1 (en) ALLOY WHITE CAST IRON
DE3883990T2 (en) USE OF TOOL STEEL FOR TOOLS FOR SHAPING THE MOTOR VEHICLE BLADE STEEL.
EP0205417B1 (en) Steel, particularly for hot-working tools
DE3937031C1 (en) Conversion of work material to martensitic chromium steel - for prepn. of sharp knives
DE102005062911B4 (en) Composite doctor blade with powder metallurgical produced working edge
DE1558649C2 (en) Use of a corrosion-resistant steel for the manufacture of razor blades

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
R071 Expiry of right
R071 Expiry of right