DE102006004783A1 - Vibration damper piston rod in steel of specific carbon and manganese content, used for engines and machines with piston rods and cylinders, comprises aluminum and titanium alloying additions - Google Patents
Vibration damper piston rod in steel of specific carbon and manganese content, used for engines and machines with piston rods and cylinders, comprises aluminum and titanium alloying additions Download PDFInfo
- Publication number
- DE102006004783A1 DE102006004783A1 DE102006004783A DE102006004783A DE102006004783A1 DE 102006004783 A1 DE102006004783 A1 DE 102006004783A1 DE 102006004783 A DE102006004783 A DE 102006004783A DE 102006004783 A DE102006004783 A DE 102006004783A DE 102006004783 A1 DE102006004783 A1 DE 102006004783A1
- Authority
- DE
- Germany
- Prior art keywords
- piston rod
- vibration damper
- steel
- engines
- cylinders
- 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- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3221—Constructional features of piston rods
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
- F16F2224/0208—Alloys
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Description
Die Erfindung betrifft eine Kolbenstange für einen Schwingungsdämpfer gemäß dem Oberbegriff von Patentanspruch 1.The The invention relates to a piston rod for a vibration damper according to the preamble of Claim 1.
Kolbenstangen für Schwingungsdämpfer bestehen häufig aus einem Stahl C35. Dieser Werkstoff weißt einen C-Gehalt von min. 0,35 % auf. Mangan ist in etwa mit 0,5 % enthalten und Aluminium beschränkt sich auf 0,03 %. C35 ist sehr gut härtbar, aber leider auch überhärtbar, so dass im Fertigungsablauf vergleichsweise häufig die Werkstoffhärte überprüft werden muss. Die Dauerfestigkeit beträgt ca. 400N/mm2. Eine Kolbenstange, die in Schwingungsdämpfer, insbesondere einem Schwingungsdämpfer in Federbeinausführung verwendet wird, unterliegt einer hohen Biegebelastung. Um diese Biegebelastungen aufnehmen zu können, ist ein bestimmter Kolbenstangendurchmesser notwendig. Der Durchmesser der Kolbenstange des Schwingungsdämpfers bestimmt wesentlich das Dämpfkraftverhalten des Schwingungsdämpfers, da das verdrängte Volumen der in den Zylinder des Schwingungsdämpfers ein- und ausfahrenden Kolbenstange durch die Dämpfventile strömen muss.Piston rods for vibration damper often consist of a steel C35. This material has a C content of min. 0.35%. Manganese is contained at about 0.5% and aluminum is limited to 0.03%. C35 can be hardened very well, but unfortunately it can also be over-hardened, so that the material hardness must be checked relatively frequently in the production process. The fatigue strength is approx. 400N / mm 2 . A piston rod used in vibration absorbers, particularly a shock absorber type vibration damper, is subject to a high bending load. To accommodate these bending loads, a certain piston rod diameter is necessary. The diameter of the piston rod of the vibration damper essentially determines the damping force behavior of the vibration damper, since the displaced volume of the piston rod entering and leaving the cylinder of the vibration damper must flow through the damping valves.
Des weiteren sollte ein Kolbenstangenwerkstoff gut schweißbar sein, da ein Kolbenzapfen vielfach als Einzelteil an die Kolbenstange angeschweißt und nicht aus dem vollen Material spanend hergestellt wird.Of further, a piston rod material should be well weldable, because a piston pin often as an individual part of the piston rod welded and not made from the full material.
Aufgabe der vorliegenden Erfindung ist es einen Werkstoff für eine Kolbenstange bereitzustellen, der eine höhere Festigkeit aufweist und zu dem schweißbar ist.task In the present invention, it is a material for a piston rod to provide a higher Has strength and is weldable to the.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, dass der Stahl der Qualität ST 52 entspricht und einen C-Gehalt von <0,25 % und einen Mn-Gehalt >1,3 % aufweist.According to the invention Task solved by that the steel of quality ST 52 and has a C content of <0.25% and a Mn content> 1.3%.
Mit dem neuen Werkstoff, der sich gut schweißen lässt kann durch Wärmebehandlung eine Dauerfestigkeit von >700N/mm2 erreicht werden. Folglich kann man den Kolbenstangendurchmesser verringern und insgesamt einen deutlich leichteren Schwingungsdämpfer erreichen. Ein wesentlicher Vorteil besteht darin, dass durch geringen C-Gehalt in Kombination mit dem Mn-Gehalt eine Überhärtung nicht möglich ist. Damit kann der Aufwand für die Härteprüfung entscheidend reduziert werden.With the new material, which can be welded well, a fatigue strength of> 700 N / mm 2 can be achieved by heat treatment. Consequently, you can reduce the piston rod diameter and achieve a much lighter vibration damper overall. A significant advantage is that overheating is not possible due to the low C content in combination with the Mn content. Thus, the effort for the hardness test can be significantly reduced.
In weiterer vorteilhafter Ausgestaltung beträgt der Al-Gehalt zwischen 0,04 und 0,06%. Mit dem Al-Gehalt kann die Eignung des Werkstoff zur spanenden Bearbeitung verbessert werden. Die Kolbenstange wird als Rohling mit einem gewissen Übermaß auf Länge geschnitten und anschließend überdreht. Der Al-Gehalt führt zu kürzeren Spänen, die in automatisierten Bearbeitungsmaschinen leichter beherrschbar sind.In Further advantageous embodiment, the Al content is between 0.04 and 0.06%. With the Al content, the suitability of the material for machining Processing to be improved. The piston rod is as a blank cut to length with a certain amount of oversize and then over-turned. The Al content leads to shorter ones Chips that are easier to control in automated processing machines.
Gemäß einem vorteilhaften Unteranspruch beträgt der Ti-Gehalt < 0,001 % beträgt. Es wird ein feinkörniges Gefüge erreicht, das sich festigkeitssteigernd auswirkt.According to one advantageous subclaim the Ti content <0.001 % is. It will be a fine grained structure achieved, which increases strength.
Anhand der folgenden Figurenbeschreibung soll die Erfindung näher erläutert werden.Based The following description of the figures, the invention will be explained in more detail.
Die
einzige Figur zeigt einen Schwingungsdämpfer
Die
Kolbenstange
Die
Kolbenstange
Ein
Mn-Gehalt von >1,3
% in Kombination mit einem C-Gehalt von 0,25 % führt dazu, dass keine Überhärtung der
Kolbenstange im Fertigungsprozess stattfinden Ein Ti-Gehalt <0,001 % fördert wiederum
ein feines Gefüge,
das sich ebenfalls festigkeitssteigernd auswirkt. Die Kolbenstange
mit dem erfindungsgemäßen Werkstoff
verfügt über eine
Dauerfestigkeit von >700N/mm2, so dass die Kolbenstange
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006004783A DE102006004783A1 (en) | 2005-03-26 | 2006-02-02 | Vibration damper piston rod in steel of specific carbon and manganese content, used for engines and machines with piston rods and cylinders, comprises aluminum and titanium alloying additions |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005014004.1 | 2005-03-26 | ||
DE102005014004 | 2005-03-26 | ||
DE102006004783A DE102006004783A1 (en) | 2005-03-26 | 2006-02-02 | Vibration damper piston rod in steel of specific carbon and manganese content, used for engines and machines with piston rods and cylinders, comprises aluminum and titanium alloying additions |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006004783A1 true DE102006004783A1 (en) | 2006-09-28 |
Family
ID=36973782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102006004783A Withdrawn DE102006004783A1 (en) | 2005-03-26 | 2006-02-02 | Vibration damper piston rod in steel of specific carbon and manganese content, used for engines and machines with piston rods and cylinders, comprises aluminum and titanium alloying additions |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102006004783A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104235360A (en) * | 2014-09-16 | 2014-12-24 | 四川金星压缩机制造有限公司 | Multilayer nano hard coating piston rod and processing process thereof |
CN112124571A (en) * | 2020-09-10 | 2020-12-25 | 中国航空工业集团公司沈阳飞机设计研究所 | Outer cylinder of aircraft landing gear, manufacturing method and aircraft landing gear |
-
2006
- 2006-02-02 DE DE102006004783A patent/DE102006004783A1/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104235360A (en) * | 2014-09-16 | 2014-12-24 | 四川金星压缩机制造有限公司 | Multilayer nano hard coating piston rod and processing process thereof |
CN104235360B (en) * | 2014-09-16 | 2016-03-23 | 四川金星清洁能源装备股份有限公司 | Multi-layer nano hard coat piston rod and processing technology |
CN112124571A (en) * | 2020-09-10 | 2020-12-25 | 中国航空工业集团公司沈阳飞机设计研究所 | Outer cylinder of aircraft landing gear, manufacturing method and aircraft landing gear |
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