DE1285179B - Use of a pyrophoric alloy as a material for extruded ignition stones - Google Patents
Use of a pyrophoric alloy as a material for extruded ignition stonesInfo
- Publication number
- DE1285179B DE1285179B DE1963T0023479 DET0023479A DE1285179B DE 1285179 B DE1285179 B DE 1285179B DE 1963T0023479 DE1963T0023479 DE 1963T0023479 DE T0023479 A DET0023479 A DE T0023479A DE 1285179 B DE1285179 B DE 1285179B
- Authority
- DE
- Germany
- Prior art keywords
- alloys
- extruded
- alloy
- flints
- pyrophoric
- 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.)
- Pending
Links
- 229910045601 alloy Inorganic materials 0.000 title claims description 17
- 239000000956 alloy Substances 0.000 title claims description 17
- 239000000463 material Substances 0.000 title claims description 3
- 239000011701 zinc Substances 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 11
- 239000011777 magnesium Substances 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- 229910052793 cadmium Inorganic materials 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 229910052684 Cerium Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- -1 0.45 to 1.501 Chemical compound 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000007792 addition Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910001122 Mischmetal Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
- C06C15/00—Pyrophoric compositions; Flints
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Description
Cer-Mischmetall-Eisen-Zündsteine, die im Gießverfahren hergestellt werden und einen verhältnismäßig hohen Gehalt an Cu, Mg und Zn aufweisen, haben sich seit langem im Gebrauch bewährt. Solche Zündsteine sind gut zerspanbar, sie besitzen eine glatte Oberfläche und zufolge ihres Cu-Gehaltes eine hohe Korrosionsbeständigkeit. Der Mg-Zusatz bewirkt eine geschlossene Funkengarbe und erniedrigt das spezifische Gewicht. Diese bedeutenden Vorteile solcher Legierungen haben sich bisher bei der Herstellung stranggepreßter Zündsteine nicht ausnutzen lassen, weil diese Legierungen für schwer oder gar nicht verpreßbar gehalten wurden. Nach dem Stande der Technik wird nämlich entweder ein niedriger Cu-Gehalt (maximal 0,45 0/0) [vgl. deutsche Patentschriften 1017 506, 1017 5071 oder neben maximal 0,35 0/0 Kupfer ein maximales Gewichtsverhältnis Zn : Mg (in der deutschen Patentschrift 1019 949 <__ 1,2) vorgeschrieben. In der österreichischen Patentschrift 221819 sollen zwar Legierungen mit hohem Gehalt an Cu und/oder Zn (0,3 bis 20/0); jedoch ohne Mg verpreßt werden.Cerium-mischmetal-iron flints, which are produced by casting and have a relatively high content of Cu, Mg and Zn, have long been proven in use. Such flints are easy to machine, they have a smooth surface and, due to their Cu content, they are highly corrosion-resistant. The addition of Mg creates a closed sparkle and lowers the specific weight. These significant advantages of such alloys have hitherto not been able to be exploited in the manufacture of extruded flints because these alloys were considered difficult or impossible to press. According to the state of the art, either a low Cu content (maximum 0.45%) [cf. German patents 1017 506, 1017 507 1 or, in addition to a maximum of 0.35% copper, a maximum weight ratio Zn: Mg (in German patent 1019 949 <1.2) is prescribed. In the Austrian patent specification 221819, alloys with a high content of Cu and / or Zn (0.3 to 20/0); but can be pressed without Mg.
Nunmehr wurde festgestellt, daß sich auch Ce(MM)-Fe-Legierungen strangverpessen lassen, die sowohl mehr als 0,450/0 Cu als auch namhafte Anteile an Zn und an Mg enthalten, wobei auch das in der deutschen Patentschrift 1019 949 genannte Gewichtsverhältnis Zn: Mg <1,2 überschritten werden kann.It has now been found that Ce (MM) -Fe alloys are also extruded let that contain more than 0.450 / 0 Cu as well as significant proportions of Zn and Mg included, with the weight ratio mentioned in German patent specification 1019 949 Zn: Mg <1.2 can be exceeded.
Die Erfindung betrifft die Verwendung einer pyrophoren Legierung aus 10 bis 300/, Eisen, 1 bis 5010 Magnesium, 0,5 bis 50/0 Zink und/oder Kadmium, 0,45 bis 1,501, Kupfer, Rest Cer-Mischmetall als Werkstoff für stranggepreßte Zündsteine. Erfindungsgemäß verwendbare Zündsteine können bei der Herstellung unbeabsichtigt in die Legierung gelangende Verunreinigungen enthalten. Der Zinkgehalt erfindungsgemäß verwendbarer Legierungen kann ganz oder teilweise durch Kadmium ersetzt werden.The invention relates to the use of a pyrophoric alloy of 10 to 300 /, iron, 1 to 5010 magnesium, 0.5 to 50/0 zinc and / or cadmium, 0.45 to 1.501, copper, the remainder cerium mixed metal as a material for extruded Flints. Flints which can be used according to the invention can contain impurities which inadvertently get into the alloy during manufacture. The zinc content of alloys which can be used according to the invention can be replaced entirely or partially by cadmium.
Vorzugsweise bestehen erfindungsgemäß verwendbare Legierungen aus 15 bis 250/, Fe, 2 bis 4"/, Mg, 0;5 bis 20/0 Zn und/oder Cd, 0,5 bis 0,80/0 Cu, Rest Cer-Mischmetall. Von Vorteil ist ferner, wenn in diesen Legierungen das Gewichtsverhältnis Zn : Cd zwischen 1/3 und 3 liegt.Alloys which can be used according to the invention preferably consist of 15 to 250 /, Fe, 2 to 4 "/, Mg, 0; 5 to 20/0 Zn and / or Cd, 0.5 to 0.80 / 0 Cu, Remainder cerium mischmetal. It is also advantageous if the weight ratio in these alloys Zn: Cd is between 1/3 and 3.
Somit kann mittels Strangpressens, einem bekanntlich technologisch
vorteilhaften Verfahren, erfindungsgemäß ein weiter Bereich pyrophorer Legierungen
für Zündsteine mit weitgehend abänderbaren, wertvollen Eigenschaften verwendbar
gemacht werden.
Die Beispiele 1 bis 4 sowie 5 bis 9 zeigen, wie sich der Preßdruck mit dem Verhältnis von Zn : Cd ändert. Die Beispiele 10 und 11 behandeln Legierungen mit großem Zn-Gehalt, um zu zeigen, daß auch bei extremen Zusammensetzungen innerhalb der angegebenen Grenzen die Legierungen noch verpreßbar sind. Im allgemeinen ist aber ein geringerer Zn-Gehalt vorzuziehen.Examples 1 to 4 and 5 to 9 show how the compression pressure changes with the ratio of Zn: Cd. Examples 10 and 11 deal with alloys with high Zn content to show that even with extreme compositions within the specified limits the alloys can still be pressed. In general is but a lower Zn content is preferable.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1963T0023479 DE1285179B (en) | 1963-02-15 | 1963-02-15 | Use of a pyrophoric alloy as a material for extruded ignition stones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1963T0023479 DE1285179B (en) | 1963-02-15 | 1963-02-15 | Use of a pyrophoric alloy as a material for extruded ignition stones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1285179B true DE1285179B (en) | 1968-12-12 |
Family
ID=7551009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1963T0023479 Pending DE1285179B (en) | 1963-02-15 | 1963-02-15 | Use of a pyrophoric alloy as a material for extruded ignition stones |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1285179B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1017506B (en) * | 1952-01-25 | 1957-10-10 | Goldschmidt Ag Th | Process for reducing the maximum required pressing pressure during extrusion molding of pyrophoric alloys made of mischmetal-iron |
| DE1017507B (en) * | 1955-11-22 | 1957-10-10 | Goldschmidt Ag Th | Process for reducing the maximum required pressure when extruding pyrophoric cerium (mischmetal) iron alloys |
| DE1019949B (en) * | 1955-11-30 | 1957-11-21 | Goldschmidt Ag Th | Extruded ignition stone made from a pyrophoric cerium (mixed metal) -zinc-magnesium alloy with 4 to 40% iron |
-
1963
- 1963-02-15 DE DE1963T0023479 patent/DE1285179B/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1017506B (en) * | 1952-01-25 | 1957-10-10 | Goldschmidt Ag Th | Process for reducing the maximum required pressing pressure during extrusion molding of pyrophoric alloys made of mischmetal-iron |
| DE1017507B (en) * | 1955-11-22 | 1957-10-10 | Goldschmidt Ag Th | Process for reducing the maximum required pressure when extruding pyrophoric cerium (mischmetal) iron alloys |
| DE1019949B (en) * | 1955-11-30 | 1957-11-21 | Goldschmidt Ag Th | Extruded ignition stone made from a pyrophoric cerium (mixed metal) -zinc-magnesium alloy with 4 to 40% iron |
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