DE756147C - Process for cooling bearing shells - Google Patents

Process for cooling bearing shells

Info

Publication number
DE756147C
DE756147C DEB194769D DEB0194769D DE756147C DE 756147 C DE756147 C DE 756147C DE B194769 D DEB194769 D DE B194769D DE B0194769 D DEB0194769 D DE B0194769D DE 756147 C DE756147 C DE 756147C
Authority
DE
Germany
Prior art keywords
cooling
metal
bearing shells
patent specification
melting point
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
DEB194769D
Other languages
German (de)
Inventor
Hermann Schaetz
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.)
BMW Flugmotorenbau GmbH
Original Assignee
BMW Flugmotorenbau 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 BMW Flugmotorenbau GmbH filed Critical BMW Flugmotorenbau GmbH
Priority to DEB194769D priority Critical patent/DE756147C/en
Application granted granted Critical
Publication of DE756147C publication Critical patent/DE756147C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/08—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal
    • B22D19/085—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal of anti-frictional metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

Verfahren zum Kühlen von Lagerschalen Die Erfindung bezieht sich auf ein Verfahren zum Kühlen von mit Weichmetall, z. B. mit Bleibronze, ausgekleideten Lagerschalen, und zwar unmittelbar nach ihrer Herstellung.Method for cooling bearing shells The invention relates to a method of cooling with soft metal, e.g. B. lined with lead bronze Bearing shells, immediately after their manufacture.

Bekanntlich ist es zum Erzielen hoch beanspruchbarer Lagerschalen, die meist mit Bleibronze ausgegossen sind, erforderlich, daß eine feine Verteilung der Weichmetalle in den als Träger dienenden Metallen der Schalen vorhanden ist. Diese Verteilung ist, wie ebenfalls bekannt, von der Art der Kühlung abhängig. Erfolgt die Kühlung zu rasch, so entsteht zwar eine gute Verteilung des oder der Weichmetalle in den Trägermdtallen, dafür aber bringt diese Maßnahme häufig unerwünschte Rißbildungen im Lagerfutter mit sich. Wird die Kühlung zu langsam vorgenommen, wie z. B. in bekannter Weise mittels flüssiger Metalle, so tritt zwar keine Mißbildung, keine sog. Bleinetzbildung bzw. kein -Netzgefüge, dafür aber ein grobes Gefüge auf.It is well known that in order to achieve heavy-duty bearing shells, which are usually filled with lead bronze, that a fine distribution is required of the soft metals is present in the metals of the shells which serve as carriers. As is also known, this distribution depends on the type of cooling. He follows If the cooling is too rapid, the result is a good distribution of the soft metal or metals in the support metals, but this measure often leads to undesired cracking in the camp fodder. If the cooling is done too slowly, e.g. B. in known Way by means of liquid metals, then none occurs Malformation, no so-called lead network formation or no network structure, but a coarse structure.

Abgesehen von diesen Schwierigkeiten besitzen die bisherigen Kühlverfahren noch den großen -Nachteil, daß sie es nicht oder nur unter Inkaufnahme großer Schwierigkeiten ermöglichen, einigermaßen gleichmäßige Kühlverhältnisse an allen Stellen der jeweils zu kühlenden Lagerschale herzustellen.Apart from these difficulties, the previous cooling methods have suffered nor the major disadvantage that they cannot do it or only accept great difficulties allow reasonably uniform cooling conditions at all points of each to produce bearing shell to be cooled.

Die genannten Nachteile können erfindungsgemäß durch ein kombiniertes Verfahren vermieden werden. Dieses besteht darin, daß die Anfangskühlung der Lagerschalenauskleidungdurch flüssiges Metall oder Metalllegierungen mit einem niedrigeren Schmelzpunkt als das Lagermetall, jedoch oberhalb 1oo``C und die Endkühlung mit Wasser, Öl oder Luft erfolgt.The disadvantages mentioned can according to the invention by a combined Procedures are avoided. This consists in the initial cooling of the bearing shell liner liquid metal or metal alloys with a lower melting point than that Bearing metal, but above 100 ° C and the final cooling with water, oil or air he follows.

Als besonders vorteilhaft ergibt es sich, zu der ersten Kühlungsart Weichmetalle, insbesondere flüssiges Blei von vorzugsweise etwa 300 bis 30o° C, zu verwenden. Die Kühlung der Lagerschalen kann hierbei durch Eintauchen der Schalen in das bzw. die der Kühlung dienenden Metalle erfolgen. Welche Temperatur der flüssigen Metalle sich hierbei als am günstigsten erweist, ist u. a. abhängig von der Stärke der meist aus Stahl bestehenden Stützschalen der Lagerschalen.It turns out to be particularly advantageous to use soft metals, in particular liquid lead of preferably about 300 to 30 ° C., for the first type of cooling. The bearing shells can be cooled by dipping the shells into the metal or metals used for cooling. Which temperature of the liquid metals turns out to be the most favorable depends, among other things, on the thickness of the support shells of the bearing shells, which are usually made of steel.

Claims (1)

PATENTANSPRUCH: Verfahren zum Kühlen von mit Weichmetall, z. B. Bleibronze, ausgekleideten Lagerschalen unmittelbar nach ihrer Herstellung unter Verwendung eines Metalls von niedrigerem Schmelzpunkt als Kühlmittel, dadurch gekennzeichnet, daß die Anfangskühlung der Lagerschalenauskleidung durch flüssiges Metall oder Metallegierungen mit einem Schmelzpunkt oberhalb ioo° und die Endkühlung mit Wasser, Öl oder Luft erfolgt. Zur Abgrenzung des Erfindungsgegenstands vom Stand der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden: Deutsche Patentschrift N r. 697336-. französische Patentschrift Nr. 74180 u. Zusatz-Patentschrift Nr. 42o56.PATENT CLAIM: Process for cooling with soft metal, z. B. lead bronze, lined bearing shells immediately after their production using a metal with a lower melting point as a coolant, characterized in that the initial cooling of the bearing shell lining is carried out by liquid metal or metal alloys with a melting point above ioo ° and the final cooling with water, oil or air. To distinguish the subject matter of the invention from the state of the art, the following publications were considered in the granting procedure: German patent specification No. 697336-. French patent specification No. 74180 and additional patent specification No. 42o56.
DEB194769D 1941-07-04 1941-07-04 Process for cooling bearing shells Expired DE756147C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB194769D DE756147C (en) 1941-07-04 1941-07-04 Process for cooling bearing shells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB194769D DE756147C (en) 1941-07-04 1941-07-04 Process for cooling bearing shells

Publications (1)

Publication Number Publication Date
DE756147C true DE756147C (en) 1953-01-05

Family

ID=7011752

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB194769D Expired DE756147C (en) 1941-07-04 1941-07-04 Process for cooling bearing shells

Country Status (1)

Country Link
DE (1) DE756147C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE922093C (en) * 1952-02-21 1955-01-07 Rober Company Ltd Shaft bearings, especially for gas turbines

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR714180A (en) * 1931-04-01 1931-11-09 Gen Motors Corp New bearings and their manufacturing process
FR42056E (en) * 1932-05-20 1933-05-19 Gen Motors Corp New bearings and their manufacturing process
DE697336C (en) * 1937-01-29 1940-10-11 Admos Bleibronze Dr Springorum Extend non-hardenable steel existing bearing shells and a spout with a copper-lead alloy

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR714180A (en) * 1931-04-01 1931-11-09 Gen Motors Corp New bearings and their manufacturing process
FR42056E (en) * 1932-05-20 1933-05-19 Gen Motors Corp New bearings and their manufacturing process
DE697336C (en) * 1937-01-29 1940-10-11 Admos Bleibronze Dr Springorum Extend non-hardenable steel existing bearing shells and a spout with a copper-lead alloy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE922093C (en) * 1952-02-21 1955-01-07 Rober Company Ltd Shaft bearings, especially for gas turbines

Similar Documents

Publication Publication Date Title
DE1433139A1 (en) Process for the production of extruded aluminum alloys subjected to a solution annealing treatment
DE831453C (en) Copper alloys
DE756147C (en) Process for cooling bearing shells
DE683764C (en) warehouse
DE757956C (en) The use of copper-aluminum alloys for objects with high creep resistance
CH155830A (en) Alloy with a low expansion coefficient.
DE824396C (en) Process for improving the creep strength of nickel alloys
DE745810C (en) Manufacture of hot rolls
DE741829C (en) Objects resistant to hydrochloric acid, sulfuric acid or chlorine derivatives
DE670188C (en) Process for improving aluminum alloys
DE632657C (en) Alloy for objects which, when processed, must have high heat resistance
DE601620C (en) Bearing bush
DE409309C (en) Connection of valve disks with their spindles by hot pressing
DE845880C (en) Support bearing or bearing support shell made of steel to be lined with composite casting
DE935333C (en) Process for increasing the stress corrosion resistance of workpieces, especially sheet metal, made of hardenable aluminum alloys of the type Al-Mg-Zn
DE523301C (en) Copper-nickel-beryllium alloy
DE613470C (en) Method for avoiding thermal stress cracks on centrifugal casting molds
DE486937C (en) Manufacture of copper alloys
DE755986C (en) Bearing shell
DE596674C (en) Centrifugal casting mold for the manufacture of tubular bodies
DE855005C (en) Process to prevent warping during hardening of workpieces made of precipitation hardening copper-beryllium alloys
DE1145801B (en) Use of aluminum alloys as a material for the production of semi-finished or finished parts that are exposed to stress corrosion cracking
AT111236B (en) Process for the production of hardened lead alloys.
DE548837C (en) Process and core for the production of bearing shells from composite casting
DE744718C (en) Process for the heat treatment of hardenable aluminum alloys, which at the same time have a high degree of hardness and the dimensional and dimensional stability required for sliding parts at higher operating temperatures