DE102006054022A1 - Saw chain for motor chain saw, has incisor, which are surface-recompensed to saw chain by nitrating method or by another surface hardness method, and carbonitriding, gas nitrating or plasma nitriding is used in nitrating method - Google Patents
Saw chain for motor chain saw, has incisor, which are surface-recompensed to saw chain by nitrating method or by another surface hardness method, and carbonitriding, gas nitrating or plasma nitriding is used in nitrating method Download PDFInfo
- Publication number
- DE102006054022A1 DE102006054022A1 DE200610054022 DE102006054022A DE102006054022A1 DE 102006054022 A1 DE102006054022 A1 DE 102006054022A1 DE 200610054022 DE200610054022 DE 200610054022 DE 102006054022 A DE102006054022 A DE 102006054022A DE 102006054022 A1 DE102006054022 A1 DE 102006054022A1
- Authority
- DE
- Germany
- Prior art keywords
- saw chain
- saw
- nitrating
- chain
- nitriding
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005121 nitriding Methods 0.000 title claims abstract description 25
- 210000004283 incisor Anatomy 0.000 title claims abstract description 18
- 238000005256 carbonitriding Methods 0.000 title claims abstract description 4
- 230000000802 nitrating effect Effects 0.000 title abstract 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims abstract description 3
- 239000012299 nitrogen atmosphere Substances 0.000 claims abstract description 3
- 230000035515 penetration Effects 0.000 claims description 7
- 238000004381 surface treatment Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 230000036346 tooth eruption Effects 0.000 claims 1
- 239000002023 wood Substances 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
- B27B33/14—Saw chains
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D63/00—Dressing the tools of sawing machines or sawing devices for use in cutting any kind of material, e.g. in the manufacture of sawing tools
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Description
Die Erfindung betrifft eine Sägekette für Motorkettensägen und ein Verfahren zur Herstellung einer oberflächenvergüteten Sägekette.The The invention relates to a saw chain for motor chainsaws and a method for producing a surface-treated saw chain.
Insbesondere die Sägeketten von Motorkettensägen, die sowohl für den professionellen täglichen Einsatz, sowie für den Heimwerkermarkt, angeboten werden, bestehen aus ungehärtetem Stahl. Kommen derartige Sägeketten mit vereistem Holz oder mit dem Erdreich in Berührung, so werden deren nicht gehärtete Schneidezähne sehr schnell stumpf und erfordern ein aufwändiges Nachschleifen. Daneben gibt es für dien Profibereich, insbesondere für die Sicherheitsdienste Sägeketten mit Hartemetall-Schneidezähnen, die wesentlich länger scharf bleiben und auch bei Berührung mit harten Gegenständen weniger schnell stumpf werden. Diese Ketten sind jedoch sehr aufwändig zu fertigen und daher sehr teuer. Die Verwendung von ungehärteten Schneidezähnen hat dabei aber den Vorteil, dass diese bei Belastung weniger leicht brechen, wodurch für den Benutzer ein geringeres Verletzungsrisiko besteht. Gehärtete und damit spröde Schneidezähne erfordern dagegen zusätzliche Schutzkleidung wegen der genannten Bruchgefahr.Especially the saw chains of motor chain saws, which both for the professional daily Use, as well as for The home improvement market, are made of unhardened steel. Come such saw chains they are not in contact with icy wood or soil hardened incisors blunt very quickly and require a complex regrinding. Besides Is available for the professional sector, in particular for the security services saw chains with hard metal incisors that much longer Stay sharp and touch with hard objects less quickly become dull. However, these chains are very expensive too finished and therefore very expensive. The use of uncured incisors has but with the advantage that they are less easily when loaded break, making for the User has a lower risk of injury. Hardened and so brittle Incisors require however, additional Protective clothing because of the mentioned risk of breakage.
Der Erfindung liegt die Aufgabe zugrunde, eine Sägekette für Motorkettensägen zu schaffen, die kostengünstig herstellbar ist und sowohl eine gute Schneidleistung hat, als auch eine möglichst lange Lebensdauer besitzt.Of the Invention has for its object to provide a saw chain for motor chain saws, the cost-effective can be produced and both has a good cutting performance, as well one possible has a long life.
Die Lösung dieser Aufgabe erhält man durch die im Patenanspruch 1 angegebenen Merkmale. Die Sägekette besitzt demgemäß wenigstens oberflächenvergütete Schneidezähne, und zwar indem diese mittels eines Nitrierverfahrens oberflächenvergütet sind. Die Anwendung eines Nitrierverfahrens hat dabei den großen Vorteil, dass lediglich mit einer verhältnismäßen geringen Eindringtiefe eine sehr harte Oberfläche für die Schneidezähne erreicht wird, dass aber gleichzeitig das Kernmaterial der Schneidezähne ungehärtet bleibt und damit nicht spröde und bruchgefährdet ist. In Versuchen wurde festgestellt, dass derart oberflächenvergütete Schneidezähne auch bei problematischen Anwendungen wie beim Sägen gefrorenen Holzes, eine vielfach höhere Lebensdauer haben, als die gleichen Schneidezähne ohne eine entsprechende Oberflächenvergütung mittels eines Nitrierverfahrens.The solution receives this task one by the features specified in claim 1. The saw chain accordingly has at least surface-coated incisors, and although they are surface-treated by means of a nitriding process. The use of a nitriding process has the great advantage that only with a relatively small Penetration reaches a very hard surface for the incisors but at the same time the core material of the incisors remains uncured and so not brittle and at risk of breakage is. In experiments it was found that such surface-coated incisors also in problematic applications such as sawing frozen wood, one many times higher Have lifespan, as the same incisors without a corresponding Surface treatment by means of a nitriding process.
Mit der erfindungsgemäßen Sägekette wird somit eine an sich sehr kostengünstig herstellbare Sägekette in ihren Sägeeigenschaften und in ihrer Haltbarkeit um ein vielfaches verbessert, wobei das Nitrierverfahren einen äußerst geringen Kostenaufwand darstellt.With the saw chain according to the invention thus becomes a very cost-effectively producible saw chain in their sawing properties and improved their durability by a multiple, the nitriding method a very small one Cost represents.
Weitere Versuche haben auch gezeigt, dass Sägeketten aus einem einfachen Werkzeugstahl sehr vorteilhaft auch in ihrer Gesamtheit einem solchen Nitrierverfahren zur Oberflächenvergütung unterzogen werden können. Dabei verbessert sich der Korrosionsschutz für die gesamte Kette und es werden auch bessere Gleiteigenschaften entlang dem Schwert der Motorkettensäge erreicht. Dadurch ergibt sich eine höhere Sägeleistung.Further Trials have also shown that saw chains are made of a simple one Tool steel very advantageous in its entirety such Nitriding process subjected to surface treatment can be. This improves the corrosion protection for the entire chain and it also better sliding properties are achieved along the sword of the motor chainsaw. This results in a higher Sawing.
Ein besonderer Vorteil der im Nitrierverfahren oberflächenvergüteten Schneidezähne besteht darin, dass diese problemlos nachgeschliffen werden können, wobei oftmals die Eindringtiefe der Oberflächenvergütung so groß ist, dass auch nach dem Nachschleifen noch eine Oberflächenvergütung mit den entsprechenden positiven Eigenschaften vorhanden ist.One particular advantage of the surface-treated in the nitriding surface incisors is that they can be reground easily, often the depth of penetration the surface coating so is great that even after regrinding still a surface finish with the corresponding positive properties is present.
Das Nitrierverfahren kann in einer Stickstoffatmosphäre durchgeführt werden. Mögliche Nitrierverfahren sind beispielsweise karbonitrieren oder gasnitrieren oder plasmanitrieren. Die dadurch erzielte gehärtete Oberfläche kann beispielsweise eine Eindringtiefe von 0,1-0,3 mm haben. Werden die Kettenglieder und die Schneidezähne separat einem Nitrierverfahren unterzogen, so können hier unterschiedliche Oberflächenvergütungen beispielsweise durch unterschiedlich lange Nitrierzeiten erreicht werden. Um eine verbesserte Nachschleifmöglichkeit für die Schneidezähne zu erhalten, können hier Oberflächenvergütungen mit einer etwas höheren Eindringtiefe zweckmäßig sein, während die Kettenglieder selbst mit ihren Lagerflächen einem kürzeren Nitrierverfahren unterzogen werden können.The Nitriding process can be carried out in a nitrogen atmosphere. Possible nitriding processes For example, they are carbonitriding or gas nitriding or plasma nitriding. The achieved thereby hardened surface may for example have a penetration depth of 0.1-0.3 mm. Become the chain links and the incisors are separately nitrided subjected, so can here different surface finishes, for example by different lengths of nitriding times can be achieved. To an improved To be able to reground the incisors, can here surface finishes with a slightly higher penetration depth be expedient while the chain links themselves with their bearing surfaces a shorter nitriding process can be subjected.
Als
technologische Hintergrundinformation wird auf die
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200610054022 DE102006054022B4 (en) | 2006-11-16 | 2006-11-16 | Saw chain for motor chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200610054022 DE102006054022B4 (en) | 2006-11-16 | 2006-11-16 | Saw chain for motor chain saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE102006054022A1 true DE102006054022A1 (en) | 2008-05-21 |
| DE102006054022B4 DE102006054022B4 (en) | 2012-05-24 |
Family
ID=39311186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200610054022 Revoked DE102006054022B4 (en) | 2006-11-16 | 2006-11-16 | Saw chain for motor chain saw |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102006054022B4 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013203630A1 (en) * | 2013-03-04 | 2014-09-04 | Robert Bosch Gmbh | Guiding device for machine tool separating device, particularly portable hand machine tool separating device, for guiding cutting strip, has guide element with nitriding hardness area which has nitriding hardness depth |
| DE102018125464B4 (en) * | 2018-10-15 | 2022-09-29 | PiKa GbR (Vertretungsberechtigter Gesellschafter: Markus Pittroff, 91278 Pottenstein) | Saw chain for working wood and plastic and method for manufacturing a saw link |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT323221B (en) * | 1970-09-18 | 1975-06-25 | Schoeller Bleckmann Stahlwerke | STEEL ALLOY FOR SAWS |
| DE3017519C2 (en) * | 1979-05-07 | 1992-01-09 | Blount, Inc. (N.D.Ges.D. Staates Delaware), Portland, Oreg., Us |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2853542A1 (en) * | 1978-12-12 | 1980-06-26 | Kodak Ag | Surface treatment of steel workpieces - by nitriding and then applying black phosphate coating which is impregnated with lubricant, esp. for mfg. camera components |
| DE3739940A1 (en) * | 1987-11-25 | 1989-06-08 | Kloeckner Humboldt Deutz Ag | Surface-hardened crankshafts for high-performance engines |
| DE19744512A1 (en) * | 1997-10-09 | 1999-04-15 | August Huechelbach Kg C | Base sheet or base material for a master blade, circular saw blade, separating saw blade, circular knife, machine knife |
-
2006
- 2006-11-16 DE DE200610054022 patent/DE102006054022B4/en not_active Revoked
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT323221B (en) * | 1970-09-18 | 1975-06-25 | Schoeller Bleckmann Stahlwerke | STEEL ALLOY FOR SAWS |
| DE3017519C2 (en) * | 1979-05-07 | 1992-01-09 | Blount, Inc. (N.D.Ges.D. Staates Delaware), Portland, Oreg., Us |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006054022B4 (en) | 2012-05-24 |
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| OP8 | Request for examination as to paragraph 44 patent law | ||
| R016 | Response to examination communication | ||
| R016 | Response to examination communication | ||
| R018 | Grant decision by examination section/examining division | ||
| R082 | Change of representative |
Representative=s name: OTT & SEBASTIAN, PATENTANWALTSKANZLEI, DE Representative=s name: ABACUS PATENTANWAELTE, DE Representative=s name: OTT & SEBASTIAN, PATENTANWALTSKANZLEI, 72108 ROTTE |
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| R026 | Opposition filed against patent |
Effective date: 20120823 |
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| R082 | Change of representative |
Representative=s name: ABACUS PATENTANWAELTE, DE |
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| R037 | Decision of examining division or of federal patent court revoking patent now final |
Effective date: 20140722 |
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| R107 | Publication of grant of european patent rescinded |
Effective date: 20141002 |