DE891748C - Lead bronze with particularly fine lead distribution - Google Patents
Lead bronze with particularly fine lead distributionInfo
- Publication number
- DE891748C DE891748C DED9479D DED0009479D DE891748C DE 891748 C DE891748 C DE 891748C DE D9479 D DED9479 D DE D9479D DE D0009479 D DED0009479 D DE D0009479D DE 891748 C DE891748 C DE 891748C
- Authority
- DE
- Germany
- Prior art keywords
- lead
- bronze
- distribution
- particularly fine
- crystals
- 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
- 229910000906 Bronze Inorganic materials 0.000 title claims description 6
- 239000010974 bronze Substances 0.000 title claims description 6
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 title claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000013078 crystal Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/08—Alloys based on copper with lead as the next major constituent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Conductive Materials (AREA)
Description
Bleibronze mit besonders feiner Bleiverteilung, Bei :der Herstellung von binären Bleibronzen, d. h. von Bleibronzen, sdie keime weiterem Bestandteile ;als Kupfersund Blei haben, wächst unter bestimmten Abkühlungsbedingungen das Kupferkorn in igrorße Kristalle. Wenn die Bleibronze gleichzeitig durch besondere Schmelzungsarten sehr gia.sarm ist, so besteht die Gefahr, sdaß große Schrumpfspannungen eintreten :und sdaßentweder zwischen den Kristallen roder innerhalb, der Kristalle selbst Risse auftreten. Gemäß der vorliegenden Erfindung werden sdie Schrumpfspannungen durch die Kupferkristalle verkleinert sowie die Bleiverteilumg wesentlich ;dadurch verbessert, daß man kleine Mengen Aluminium zur binären Bleibronze zusetzt. Beispielsweise wurde die Kristallgröße einer binären Bleibronze, die im Durchschnitt im Bruch gemessen etwa z mm beträgt, auf erwa '/,()mm herabgesetzt, wenn man o, 5 0iö Aluminium zusetzte.Lead bronze with a particularly fine distribution of lead, In: the production of binary lead bronzes, ie of lead bronzes, which have additional components; as copper and lead have, the copper grain grows into large crystals under certain cooling conditions. If lead bronze is at the same time very low in heat due to special types of fusion, there is a danger that great shrinkage stresses will occur: and that cracks will appear either between the crystals or within the crystals themselves. In accordance with the present invention, the shrinkage stresses caused by the copper crystals are reduced and lead distribution is significantly improved by adding small amounts of aluminum to the binary lead bronze. For example, the crystal size is a binary lead-bronze, the measured average fracture is about z mm, /, () mm reduced when zusetzte on Erwa 'o, 5 0iö aluminum.
Die Rißg efahr und ,auch das Brechen an den groben Körnern entlang wurde auf diese Weisse vermieden.The risk of cracking and breaking along the coarse grains was avoided in this way.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED9479D DE891748C (en) | 1943-04-28 | 1943-04-28 | Lead bronze with particularly fine lead distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED9479D DE891748C (en) | 1943-04-28 | 1943-04-28 | Lead bronze with particularly fine lead distribution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE891748C true DE891748C (en) | 1953-10-01 |
Family
ID=7032876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DED9479D Expired DE891748C (en) | 1943-04-28 | 1943-04-28 | Lead bronze with particularly fine lead distribution |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE891748C (en) |
-
1943
- 1943-04-28 DE DED9479D patent/DE891748C/en not_active Expired
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