DE756147C - Process for cooling bearing shells - Google Patents
Process for cooling bearing shellsInfo
- 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
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)
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)
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)
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 |
-
1941
- 1941-07-04 DE DEB194769D patent/DE756147C/en not_active Expired
Patent Citations (3)
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)
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 |
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