AT149547B - Objects that are subjected to abrasive stress at elevated temperature, made of cadmium alloy aluminum alloys. - Google Patents
Objects that are subjected to abrasive stress at elevated temperature, made of cadmium alloy aluminum alloys.Info
- Publication number
- AT149547B AT149547B AT149547DA AT149547B AT 149547 B AT149547 B AT 149547B AT 149547D A AT149547D A AT 149547DA AT 149547 B AT149547 B AT 149547B
- Authority
- AT
- Austria
- Prior art keywords
- objects
- subjected
- aluminum alloys
- elevated temperature
- cadmium
- Prior art date
Links
- 229910000838 Al alloy Inorganic materials 0.000 title claims description 6
- 229910000925 Cd alloy Inorganic materials 0.000 title 1
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 229910052793 cadmium Inorganic materials 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 238000007792 addition Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Description
<Desc/Clms Page number 1>
Gegenstände, die reibender Beanspruchung bei erhöhter Temperatur unterworfen sind, aus kadmiumlegierten Aluminiumlegierungen.
Bei den meisten in Verwendung stehenden Aluminiumlegierungen für Kolben u. dgl. ist der grosse Nachteil vorhanden, dass die Kolben im normalen Zustande wohl eine hohe Brinellhärte aufweisen, jedoch bei höherer Temperatur auf bedeutend niedrigere Werte absinken und somit eine wesentliche Abnutzung des Kolbens durch die vorhandene reibende Beanspruchung eintritt.
Es wurde schon der Vorschlag gemacht, eine Legierung aus 5. 25% Kupfer, 0. 5% Mangan, 0. 55% Ferrosilizium (bestehend aus etwa 0. 44% Silizium und 0-11% Eisen), 0-1% Wolfram, 2% Magnesium und 89-6% Aluminium mit einem Zusatz von 2% Kadmium zur Herstellung von Kolben zu verwenden. Diese Legierung entspricht nicht dem Idealzustand eines erhitzten Kolbens, da wegen des geringen Siliziumgehaltes die Wärmeausdehnung zu gross und die durch den Kadiumgehalt erstrebten Vergütungswerte offenbar aus dem gleichen Grunde beim Erhitzen des Kolbens zu stark abfallen.
Durch Versuche wurde nun festgestellt, dass bei richtiger Dosierung des Kadmiumgehaltes, entsprechend der vorhandenen Aluminiummenge, Legierungen mit über 70% Aluminium, mit 6-14%, vorzugsweise 8-12% Silizium, 0-2-15% Kupfer, gegebenenfalls mit weiteren Gehalten an Nickel, Eisen, Magnesium, Chrom, Kobalt, Mangan, einzeln oder zu mehreren, bis zu etwa je 3%, als Kolbenlegierungen besonders geeignet sind. Der Kadmiumgehalt kann bei dieser Zusammensetzung 0-2-5% betragen. Diese Legierungen, die in bekannter Weise durch Wärmebehandlung (Erhitzen auf 480-5000 C, Abschrecken im heissen Wasser und nochmaliges Anlassen auf eine Temperatur auf 150 bis 170 C) vergütbar sind, behalten die durch die Vergütung erlangten Eigenschaften auch bei erhöhter Temperatur annähernd in ganzer Höhe bei.
Kadmiumlegierte Kolben weisen festgestelltermassen etwa die halbe Abnutzung auf als gleich zusammengesetzte Legierungen ohne Kadmiumzusatz.
Es konnte z. B. bei einer Aluminiumlegierung mit 11-78% Silizium, 5. 9% Kupfer, 0. 48% Eisen, 0-52% Magnesium, 1-42% Nickel, 1-20% Mangan und 0. 3% Kadmium die Brinellhärte von 96 kg/mm2 im gegossenen Zustand auf 140 kg/m im vergüteten Zustand verbessert werden. Durch Veränderung des Kadmiumgehaltes lassen sich naturgemäss bei derselben Legierung auch die Eigenschaften beeinflussen. Durch die Wärmeeinwirkung bei der Verbrennung der Kraftstoffe sinkt zwar die Härte etwas, jedoch konnte nie ein Wert unter 100 kg/mm2 beobachtet werden.
Auf Grund dieser Eigenschaften eignen sich kadmiumlegierte Aluminiumlegierungen ganz besonders für Gegenstände, die einer reibenden Beanspruchung bei erhöhter Temperatur unterworfen sind, z. B. Kolben für Brennkraftmaschinen.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Objects that are subjected to abrasive stress at elevated temperatures, made of cadmium-alloyed aluminum alloys.
Most of the aluminum alloys used for pistons, etc. The like. The big disadvantage is that the pistons in the normal state have a high Brinell hardness, but drop to significantly lower values at higher temperatures and thus significant wear of the piston occurs due to the existing frictional stress.
The proposal has already been made to use an alloy of 5.55% copper, 0.5% manganese, 0.55% ferrosilicon (consisting of about 0.44% silicon and 0-11% iron), 0-1% tungsten, Use 2% magnesium and 89-6% aluminum with an addition of 2% cadmium to make pistons. This alloy does not correspond to the ideal condition of a heated piston, because due to the low silicon content the thermal expansion is too great and the tempering values aimed for by the cadium content obviously drop too much for the same reason when the piston is heated.
Experiments have now shown that with the correct dosage of the cadmium content, according to the amount of aluminum present, alloys with over 70% aluminum, with 6-14%, preferably 8-12% silicon, 0-2-15% copper, if necessary with other contents of nickel, iron, magnesium, chromium, cobalt, manganese, individually or in groups, up to about 3% each, are particularly suitable as piston alloys. The cadmium content can be 0-2-5% in this composition. These alloys, which can be tempered in a known manner by heat treatment (heating to 480-5000 C, quenching in hot water and renewed tempering to a temperature of 150 to 170 C), retain the properties obtained through the tempering almost entirely even at elevated temperatures Height at.
Cadmium-alloyed pistons have been found to have about half the amount of wear than alloys of the same composition without the addition of cadmium.
It could e.g. B. in an aluminum alloy with 11-78% silicon, 5.9% copper, 0.48% iron, 0-52% magnesium, 1-42% nickel, 1-20% manganese and 0.3% cadmium the Brinell hardness of 96 kg / mm2 in the cast state can be improved to 140 kg / m in the quenched and tempered state. By changing the cadmium content, the properties of the same alloy can naturally also be influenced. Due to the effect of heat when the fuel is burned, the hardness decreases somewhat, but a value below 100 kg / mm2 has never been observed.
Because of these properties, cadmium-alloyed aluminum alloys are particularly suitable for objects that are subjected to abrasive stress at elevated temperatures, e.g. B. Pistons for internal combustion engines.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT149547T | 1935-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT149547B true AT149547B (en) | 1937-05-10 |
Family
ID=3645682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT149547D AT149547B (en) | 1935-05-31 | 1935-05-31 | Objects that are subjected to abrasive stress at elevated temperature, made of cadmium alloy aluminum alloys. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT149547B (en) |
-
1935
- 1935-05-31 AT AT149547D patent/AT149547B/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2230864C3 (en) | Use of an alloyed cast iron as a material for wear-resistant components | |
| DE3321074A1 (en) | BOILER TUBE WITH IMPROVED MECHANICAL STRENGTH AT HIGH TEMPERATURES, IMPROVED CORROSION RESISTANCE AT HIGH TEMPERATURES AND RESISTANCE TO EMBROIDERY DURING OPERATION | |
| AT158393B (en) | Heat-treatable magnesium alloy with aluminum and bismuth content. | |
| AT140041B (en) | Heat-resistant austenitic steel alloys. | |
| DE840920C (en) | Use of aluminum alloys for machine parts stressed by sliding friction | |
| AT136265B (en) | Aluminum-silicon alloys for pistons and cylinders in engines. | |
| AT126405B (en) | Machine parts subject to wear at high temperatures. | |
| AT135662B (en) | Chrome-aluminum steels with or without silicon for the production of non-scaling seamless tubes. | |
| AT158859B (en) | Steel components that are used at high steam temperatures above 500 ° C and high pressures. | |
| DE598548C (en) | Machine parts that are subjected to sliding stress at higher temperatures, such as pistons, piston rings, cylinders for internal combustion engines | |
| AT129734B (en) | Copper-beryllium alloy. | |
| DE478462C (en) | Pistons of prime movers | |
| AT144000B (en) | Steel alloy for objects that are resistant to particularly high pressures, e.g. B. explosion pressures, are stable and at the same time have increased resistance to wear. | |
| DE711194C (en) | Malleable cast iron for brake parts | |
| DE727808C (en) | Use of alloys consisting of 0.5 to 1.5% silicon, 0.5 to 1.5% iron, 0.05 to 0.2% aluminum, the remainder copper, in a non-precipitation hardened state for fire boxes in locomotives | |
| AT139002B (en) | Light metal pistons for internal combustion engines. | |
| AT147159B (en) | Corrosion-resistant austenitic molybdenum-chromium-nickel-iron alloys. | |
| AT139087B (en) | Alloy containing beryllium and magnesium with one or more metals of the iron group or copper as a base. | |
| DE675051C (en) | Process for the heat treatment of castings made of aluminum alloys | |
| AT147650B (en) | Use of phosphorus-containing aluminum-silicon alloys for objects that are subjected to frictional stress, especially at elevated temperatures. | |
| AT143301B (en) | Precipitation-hardenable iron alloys, in particular for the manufacture of hot tools. | |
| AT137551B (en) | Manufacture of objects that must be resistant to the attack of heated hydrogen. | |
| AT143306B (en) | Precipitation hardening alloys. | |
| DE662122C (en) | Use of copper alloys for objects with high conductivity, mechanical strength and high heat resistance | |
| AT142421B (en) | Process for the production of alloys with great hardness, high wear resistance and good cutting force. |