DE889246C - Manufacture of bearings or bearing parts from sintered iron or sponge iron - Google Patents

Manufacture of bearings or bearing parts from sintered iron or sponge iron

Info

Publication number
DE889246C
DE889246C DER3839D DER0003839D DE889246C DE 889246 C DE889246 C DE 889246C DE R3839 D DER3839 D DE R3839D DE R0003839 D DER0003839 D DE R0003839D DE 889246 C DE889246 C DE 889246C
Authority
DE
Germany
Prior art keywords
iron
bearings
sulfur
manufacture
bearing parts
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
Application number
DER3839D
Other languages
German (de)
Inventor
Gerd Dr Maassen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DER3839D priority Critical patent/DE889246C/en
Application granted granted Critical
Publication of DE889246C publication Critical patent/DE889246C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/06Sliding surface mainly made of metal
    • F16C33/14Special methods of manufacture; Running-in
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2220/00Shaping
    • F16C2220/20Shaping by sintering pulverised material, e.g. powder metallurgy

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lubricants (AREA)

Description

Herstellung von Lagern oder Lagerteilen aus Sintereisen oder Eisenschwamm Zur Verhinderung des Fressens der Gleitflächen setzt man vornehmlich bei hochbeanspruchten Lagern mit Erfolg Schwefel dem Schmiermittel zu und erzeugt so eine Masse, die als Schwefel-Compound bezeichnet wird. Die sich infolge der Reibungswärme während des Laufs. bildenden dünnen Sulfidschichten haben einen günstigeren Reibungskoeffizienten als die blanken metallischen Flächen. Aus dem Schwefel, der im Schmiermittel enthalten ist, werden dabei die abgetragenen Sulfidschichten stets aufs neue gebildet.Manufacture of bearings or bearing parts from sintered iron or sponge iron In order to prevent the sliding surfaces from seizing, it is primarily used for highly stressed Successfully store sulfur in the lubricant, creating a mass that is known as Sulfur compound is called. Due to the frictional heat during the Run. forming thin sulphide layers have a more favorable coefficient of friction than the bare metallic surfaces. From the sulfur contained in the lubricant is, the sulphide layers that have been removed are constantly being rebuilt.

Bei porösen Sintereisen- oder Schwammeisenlagern bietet aber eine Schmierung oder Tränkung mit Schwefel-Compound gegenüber der reinen Ö1-tränkung keine besonderen Vorteile, da einerseits nur sehr wenig Schwefel in die feineren Poren eindringen, andererseits die abgetragenen Sulfidschichten mangels Schwefelnachschubs nicht neu gebildet werden.In the case of porous sintered iron or sponge iron bearings, however, one Lubrication or impregnation with sulfur compound compared to pure oil impregnation no particular advantages, since on the one hand very little sulfur in the finer ones Pores penetrate, on the other hand the removed sulphide layers due to a lack of sulfur replenishment not be re-formed.

Die Erfindung besteht nun darin, daB Sintereisen- oder Eisenschwammlager oder -buchsen oder andere Teile in rohem oder fertig bearbeitetem Zustand erst vorgewärmt und dann mit geschmolzenem Schwefel getränkt werden, wodurch die Poren und Hohlräume der Lager weitgehend mit Schwefel ausgefüllt sind. Hierdurch wird die günstige Schmierwirkung des leicht erweichenden Schwefels und vornehmlich seines Reaktionsproduktes mit dem Metall,. .des Sulfids, bei .selbstschmierenden Sintereisen- oder Eisenschwänmlagern nutzbar gemacht.The invention consists in the fact that sintered iron or sponge iron bearings or bushings or other parts in the raw or finished state are first preheated and then soaked with molten sulfur, creating the pores and voids the camps are largely filled with sulfur. This is the beneficial lubricating effect the easily softening sulfur and especially its reaction product with the metal. . of sulphide, in. self-lubricating sintered iron or swan iron bearings made usable.

Bereits beim Tränken der porösen Lagerteile- mit geschmolzenem Schwefel bildet sich - je., nach . der angewendeten Temperatur und Tränkungsdauer eine mehr oder weniger dicke äußere Sulfidschicht und auch ein entsprechender Sulfidanteil im Innern des Lagerteils. Die vorteilhafte Sulfidschicht ist somit bereits vor der Inbetriebnahme des Lagers vorhanden und kann überdies, in ihrer Stärke je nach der Herstellungsart veränderlich gestaltet werden. Demgegenüber war es bei der Verwendung von Schwefel-Compound so., daß sich die Sulfidschichten erst während des Betriebes -bilden.- Ein Fressen der Lager nach der Erfindung ist somit von vornherein ausgeschlossen. Ein weiterer Vorteil besteht darin, daß der in_ den Poren und Hohlräumen an der Oberfläche frei liegende Schwefelanteil bei geringer Erwärmung des Lagers als Schmiermittel wirkt und andererseits die 1,#eübildung abgetragener Sulfidschichten hervorruft. An Stelle von Schwefel -allein kann erfindungsgemäß auch ein Gemisch von Schwefel mit anderen schmierenden- Stoffen,- z.- B. mit thermoplastischen Kunststoffen _ oder. .Paraffin, verwendet werden. Ferner ist es möglich, schwefelgetränkte Lagerteile gemäß der Erfindung nachträglich noch mit einem Schmiermittel zu versehen.Already when soaking the porous bearing parts with molten sulfur forms - depending., after. the applied temperature and soaking time one more or less thick outer sulphide layer and also a corresponding sulphide content inside the bearing part. The advantageous sulfide layer is thus already before the Commissioning of the warehouse available and can, moreover, depending on the strength of the Production method can be designed to be changeable. In contrast, it was in use of sulfur compound in such a way that the sulfide layers only form during operation -bilden.- A seizure of the bearing according to the invention is thus excluded from the outset. Another advantage is that the in_ the pores and cavities on the Surface exposed sulfur content when the bearing heats up slightly as a lubricant acts and on the other hand causes the formation of removed sulphide layers. Instead of sulfur alone, a mixture of sulfur can also be used according to the invention with other lubricating substances - e.g. with thermoplastics _ or. .Paraffin, can be used. It is also possible to use sulfur-soaked bearing parts to be subsequently provided with a lubricant according to the invention.

Claims (1)

' PATENTANSPRÜCHE: . i. Herstellung von Lagern oder Lagerteilen aus. Sintereisen oder Eisenschwamm, dadurch gekennzeichnet, daß sie im rohen oder bearbeiteten Zustand mit geschmolzenem Schwefel getränkt vverderi. z. Verfahren nach Anspruch i, dadurch gekennzeic'hnet, daß zu ihrer Tränkung ein Gemisch von Schwefel mit anderen schmierenden -Stoffen, z. B. thermoplastischen Kunststoffen oder Paraffin, verwendet wird.'PATENT CLAIMS:. i. Manufacture of bearings or warehouse parts. Sintered iron or sponge iron, characterized in that they are raw or machined State soaked with molten sulfur vverderi. z. Method according to claim i, marked by the fact that a mixture of sulfur with other to impregnate them lubricating substances, e.g. B. thermoplastics or paraffin used will.
DER3839D 1942-07-10 1942-07-10 Manufacture of bearings or bearing parts from sintered iron or sponge iron Expired DE889246C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER3839D DE889246C (en) 1942-07-10 1942-07-10 Manufacture of bearings or bearing parts from sintered iron or sponge iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER3839D DE889246C (en) 1942-07-10 1942-07-10 Manufacture of bearings or bearing parts from sintered iron or sponge iron

Publications (1)

Publication Number Publication Date
DE889246C true DE889246C (en) 1953-09-10

Family

ID=7396497

Family Applications (1)

Application Number Title Priority Date Filing Date
DER3839D Expired DE889246C (en) 1942-07-10 1942-07-10 Manufacture of bearings or bearing parts from sintered iron or sponge iron

Country Status (1)

Country Link
DE (1) DE889246C (en)

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