EP0725841B1 - Use of special steel alloy for chains and chain components - Google Patents
Use of special steel alloy for chains and chain components Download PDFInfo
- Publication number
- EP0725841B1 EP0725841B1 EP94930176A EP94930176A EP0725841B1 EP 0725841 B1 EP0725841 B1 EP 0725841B1 EP 94930176 A EP94930176 A EP 94930176A EP 94930176 A EP94930176 A EP 94930176A EP 0725841 B1 EP0725841 B1 EP 0725841B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chains
- pct
- chain
- chain components
- steel alloy
- 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
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
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
Definitions
- the invention relates to the use of a stainless steel alloy with proportions of carbon, silicon, manganese, Phosphorus, sulfur, chromium, molybdenum, nickel, aluminum and Iron with production-related impurities as the rest according to the features of the claim as a material for Manufacture of chains and chain components.
- such an alloy is from US-PS 4,729,872 known. However, this does not apply to the use of such an alloy for chains or chain components.
- a conventional material for chains and chain components has the following chemical composition with regard to the essential secondary components: C. Si Mn P S Cr 0.20-0.26% ⁇ 0.25% 1.10-1.40% ⁇ 0.020% ⁇ 0.020% 0.40-0.60% Mon Ni Al Cu N 0.50-0.60% 0.90-1.10% 0.020-0.050% ⁇ 0.25% ⁇ 0.012%
- the invention is based on the use of an improved one Material alloy for the chain components and chain accessories.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Gears, Cams (AREA)
Abstract
Description
Die Erfindung betrifft die Verwendung einer Edelstahl-Legierung mit Anteilen von Kohlenstoff, Silicium, Mangan, Phosphor, Schwefel, Chrom, Molybdän, Nickel, Aluminium und Eisen mit herstellungsbedingten Verunreinigungen als Rest gemäß den Merkmalen des Patentanspruchs als Werkstoff zur Herstellung von Ketten und Kettenbauteilen.The invention relates to the use of a stainless steel alloy with proportions of carbon, silicon, manganese, Phosphorus, sulfur, chromium, molybdenum, nickel, aluminum and Iron with production-related impurities as the rest according to the features of the claim as a material for Manufacture of chains and chain components.
Grundsätzlich ist eine solche Legierung aus der US-PS 4,729,872 bekannt. Dies gilt allerdings nicht für die Verwendung einer solchen Legierung für Ketten oder Kettenbauteile.Basically, such an alloy is from US-PS 4,729,872 known. However, this does not apply to the use of such an alloy for chains or chain components.
Ein konventioneller Werkstoff für Ketten und Kettenbauteile
hat bezüglich der wesentlichen Nebenbestandteile
folgende chemische Zusammensetzung:
Man hat zur Optimierung dieses bekannten Werkstoffs zum Teil eine Einengung der angegebenen Toleranzgrenzen und zum Teil eine Überschreitung der Toleranzgrenzen für die Legierungsanteile vorgenommen, im wesentlichen jedoch die Zusammensetzung unverändert gelassen, weil neben der Festigkeit auch die notwendige Warmbehandlung der Edelstähle bei der Herstellung von Ketten und Kettenbauteilen berücksichtigt werden muß, denn insbesondere bei der Herstellung von Kettengliedern muß mit Abbrenn- und Widerstandsschweißen gearbeitet werden. Hier kommt es darauf an, daß auch in der Schweißzone der Kettenglieder die erforderlichen technologischen Eigenschaften des Werkstoffes erhalten bleiben. Außerdem muß bei der Warmbehandlung der fertigen Kette ein Kompromiß zwischen der Härte, also der Materialfestigkeit, und dem Verschleißwiderstand gefunden werden, um der bei höherer Festigkeit allgemein verminderten Zähigkeitseigen- schaften Rechnung zu tragen.One has to optimize this known material for Part of a narrowing of the specified tolerance limits and partly exceeding the tolerance limits for the Alloy proportions made, but essentially the Composition left unchanged because in addition to the Strength also the necessary heat treatment of the stainless steels in the manufacture of chains and chain components must be taken into account, especially in the case of Manufacture of chain links must be with flash-off and resistance welding be worked. Here it comes down to it indicates that also in the welding zone of the chain links required technological properties of the material remain. In addition, the heat treatment the finished chain a compromise between the Hardness, i.e. the material strength, and wear resistance to be found at higher strength generally reduced toughness properties to wear.
Um den steigenden Anforderungen an Rundstahlketten und -zubehör für den Bergbau, den sogenannten Bergbauketten, gerecht zu werden, hat man durch Geometrieveränderungen an den Kettengliedern und den Kettenbauteilen höhere Standzeiten erzielt. Man stößt dabei jedoch schnell an die geometrischen Randbedingungen, die von den Einsatzfällen vorgegeben werden. Bei Förderketten werden mit größerer Dimension größere Kettenräder erforderlich, die eine entsprechende Bauhöhe bedingen. Vor allem im Untertagebetrieb kommt es bei Förderanlagen auf die Einsparung von Einbauhöhe an, wozu man in der geometrischen Gestaltung der Kettenglieder und Kettenschlösser schon zu unterschiedlichen Mitteln, wie Abflachung von Kettengliedern oder unterschiedliche Teilungen der vertikal- und der horizontallaufenden Kettenglieder, gegriffen hat. To meet the increasing demands on round steel chains and -Accessories for mining, the so-called mining chains, One has to do justice by changing the geometry the chain links and chain components have a longer service life achieved. However, one quickly comes across the geometric ones Boundary conditions specified by the application will. Conveyor chains are larger Dimension larger sprockets required that have a corresponding Require overall height. Especially in underground operations the saving of Installation height, which is why in the geometric design the chain links and chain locks are too different Means such as flattening chain links or different divisions of the vertical and the horizontal chain links.
Die Erfindung beruht auf der Verwendung einer verbesserten Werkstofflegierung für die Kettenbauteile und das Kettenzubehör. Man erreicht mit der erfindungsgemäß zu verwendenden Legierung wegen des zusätzlichen Legierungsanteils von Wolfram eine höhere Festigkeit und Zähigkeit des für Ketten und Kettenzubehör vorgesehenen Edelstahls, ohne daß die Schmiede- und Schweißfähigkeit sowie die Warmbehandlungseigenschaften der Kette beeinträchtigt sind, was für hochfeste Ketten und Kettenbauteile, insbesondere für Bergbauketten und -zubehör eine unerläßliche Forderung ist.The invention is based on the use of an improved one Material alloy for the chain components and chain accessories. One achieves with the one to be used according to the invention Alloy because of the additional alloy content of tungsten for higher strength and toughness Chains and chain accessories provided stainless steel without the ability to forge and weld as well as the heat treatment properties the chain are compromised what for high-strength chains and chain components, especially for Mining chains and accessories are an essential requirement is.
Die erfindungsgemäß verwendete Edelstahl-Legierung für Ketten und Kettenzubehör ermöglicht bei gleichen geometrischen Abmessungen der Kettenglieder oder der Kettenbauteile ein verbessertes Leistungsvermögen, umgekehrt kann man bei gleichem Leistungsvermögen den Materialeinsatz bei Ketten und Kettenzubehör reduzieren. So ergibt sich ferner im Vergleich zu den bisher erzielten Leistungssteigerungen bei Ketten und Kettenbauteilen durch Geometrieveränderungen eine Energie- und Rohstoffeinsparung.The stainless steel alloy used according to the invention for Chains and chain accessories allow for the same geometric Dimensions of the chain links or chain components an improved performance, vice versa you can use the material with the same performance reduce chains and chain accessories. So results further compared to those achieved so far Performance increases for chains and chain components Geometry changes save energy and raw materials.
Claims (1)
- Use of a steel alloy consisting of (in weight percent)and iron, with impurities arising from manufacturing as the remainder, as material for the manufacture of chains and components of chains.0.19 to 0.26 % C< 0.25 % Si0.95 to 1.40 % Mn< 0.015 % P< 0.015 % S0.7 to 0.9 % Cr0.7 to 0.9 % Mo1.0 to 1.2 % Ni0.02 to 0.05 % Al0.2 to 0.5 % W
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4337148A DE4337148C1 (en) | 1993-10-30 | 1993-10-30 | Use of a high-grade steel alloy for chains and chain component parts |
| DE4337148 | 1993-10-30 | ||
| PCT/EP1994/003401 WO1995012692A1 (en) | 1993-10-30 | 1994-10-15 | Use of special steel alloy for chains and chain components |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0725841A1 EP0725841A1 (en) | 1996-08-14 |
| EP0725841B1 true EP0725841B1 (en) | 1998-01-07 |
Family
ID=6501457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94930176A Expired - Lifetime EP0725841B1 (en) | 1993-10-30 | 1994-10-15 | Use of special steel alloy for chains and chain components |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5562881A (en) |
| EP (1) | EP0725841B1 (en) |
| AT (1) | ATE161897T1 (en) |
| CZ (1) | CZ286056B6 (en) |
| DE (2) | DE4337148C1 (en) |
| PL (1) | PL178573B1 (en) |
| WO (1) | WO1995012692A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2733516B1 (en) * | 1995-04-27 | 1997-05-30 | Creusot Loire | STEEL AND PROCESS FOR THE MANUFACTURE OF PARTS WITH HIGH ABRASION RESISTANCE |
| ATE377095T1 (en) * | 2003-09-09 | 2007-11-15 | Pewag Austria Gmbh | USE OF A STEEL FOR PRODUCING CHAINS, METHOD FOR PRODUCING A CHAIN AND CHAIN PRODUCED THEREFROM |
| WO2006133668A1 (en) * | 2005-06-16 | 2006-12-21 | Georgsmarienhütte Gmbh | Steel for production of wearing parts for the construction machine industry |
| DE102013106990B4 (en) * | 2013-07-03 | 2018-05-30 | J. D. Theile Gmbh & Co. Kg | Chain link or chain component for mining applications |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3830054A (en) * | 1971-09-21 | 1974-08-20 | Hitachi Ltd | Link chains for motor blocks |
| JPS52126611A (en) * | 1976-04-16 | 1977-10-24 | Daiei Kogyo Co Ltd | Connection clip for chain |
| JPS5360813A (en) * | 1976-11-12 | 1978-05-31 | Kobe Steel Ltd | Steel chain with high true tensile stress |
| JPS61270355A (en) * | 1985-05-24 | 1986-11-29 | Sumitomo Metal Ind Ltd | High strength steel excelling in resistance to delayed fracture |
| JPH0765141B2 (en) * | 1985-09-18 | 1995-07-12 | 日立金属株式会社 | Tool steel for hot working |
-
1993
- 1993-10-30 DE DE4337148A patent/DE4337148C1/en not_active Expired - Lifetime
-
1994
- 1994-10-15 CZ CZ952557A patent/CZ286056B6/en not_active IP Right Cessation
- 1994-10-15 DE DE59404980T patent/DE59404980D1/en not_active Expired - Lifetime
- 1994-10-15 US US08/464,794 patent/US5562881A/en not_active Expired - Lifetime
- 1994-10-15 EP EP94930176A patent/EP0725841B1/en not_active Expired - Lifetime
- 1994-10-15 PL PL94314106A patent/PL178573B1/en unknown
- 1994-10-15 WO PCT/EP1994/003401 patent/WO1995012692A1/en active IP Right Grant
- 1994-10-15 AT AT94930176T patent/ATE161897T1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| PL178573B1 (en) | 2000-05-31 |
| DE59404980D1 (en) | 1998-02-12 |
| CZ255795A3 (en) | 1996-05-15 |
| DE4337148C1 (en) | 1994-10-27 |
| US5562881A (en) | 1996-10-08 |
| PL314106A1 (en) | 1996-08-19 |
| EP0725841A1 (en) | 1996-08-14 |
| WO1995012692A1 (en) | 1995-05-11 |
| CZ286056B6 (en) | 1999-12-15 |
| ATE161897T1 (en) | 1998-01-15 |
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