DE155810C - - Google Patents
Info
- Publication number
- DE155810C DE155810C DENDAT155810D DE155810DA DE155810C DE 155810 C DE155810 C DE 155810C DE NDAT155810 D DENDAT155810 D DE NDAT155810D DE 155810D A DE155810D A DE 155810DA DE 155810 C DE155810 C DE 155810C
- Authority
- DE
- Germany
- Prior art keywords
- steel
- manganese steel
- product
- cold water
- heated
- 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.)
- Active
Links
- 229910000617 Mangalloy Inorganic materials 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000000171 quenching Effects 0.000 claims 1
- 238000010791 quenching Methods 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Manganstahlgüsse sind bisher in der Weise zähe gemacht worden, daß man sie in einen kalten Ofen legte und ganz allmählich auf etwa 650° C. erhitzte, worauf das Erhitzen schneller oder auch in mäßig schnellem Maße fortgeführt wurde, bis die Güsse Orangeglut erreichten, also etwa 926° C. Schließlich wurden sie so rasch als möglich aus dem Ofen genommen und sogleich in kaltes Wasser getaucht.Manganese steel castings have hitherto been made tough in such a way that they can be turned into one cold oven and heated very gradually to about 650 ° C., followed by heating was continued faster or at a moderate speed until the pouring orange glow reached, so about 926 ° C. Finally, they were as quickly as possible out of the Taken from the oven and immediately immersed it in cold water.
Erschöpfende Versuche. haben ergeben, daß Manganstahl mit außergewöhnlicher Zähigkeit und Festigkeit in regelbarer Weise erhalten werden kann, wenn man höhere Temperaturen als die vorgenannten anwendet.Exhausting attempts. have shown that manganese steel has exceptional toughness and strength can be obtained in a controllable manner by using higher temperatures than the aforementioned applies.
Der Stahl wird gemäß dem neuen Verfahren langsam auf etwa 750 bis 800° C. erhitzt, worauf das Erhitzen ohne Verzug beschleunigt wird, um den Stahl so rasch als möglich auf die Temperatur zu bringen, bei welcher er in kaltes Wasser getaucht werden soll. Diese Temperatur hängt nach den Erfahrungen des Erfinders· von der Natur des angewendeten Stahles und des gewünschten Produktes ab, wobei sie innerhalb gewisser Grenzen schwanken kann, und zwar liegt sie nicht unter 9400 und nicht über 11250 C, vorzugsweise zwischen. 980 und 10500 C. für Güsse und 940 bis 10000C. für geschmiedeten Manganstahl.According to the new process, the steel is slowly heated to around 750 to 800 ° C., whereupon the heating is accelerated without delay in order to bring the steel as quickly as possible to the temperature at which it is to be immersed in cold water. This temperature depends on the experience of the inventor · the nature of the applied steel and the desired product from, but may vary within certain limits, and that it is not below 940 0 and not more than 1125 0 C, preferably between. 980 and 1050 0 C. for castings and 940 to 1000 0 C. for forged manganese steel.
Es wurde gefunden, daß durch Behandlung von Manganstahl in der beschriebenen Weise der Gehalt an Härtungskohle; die in dem zähe gemachten Produkt verbleibt, gemäß der Temperatur wechselt, auf welche der Manganstahl vor seinem Eintauchen in kaltes Wasser gebracht wurde. Je geringer der Gehalt an Härtungskohle in dem fertigen Produkt ist, desto zäher und weniger hart ist das Produkt, und je größer der Gehalt an Härtungskohle ist, desto härter und weniger zäh ist das Produkt. Es ist folglich ersichtlich, daß durch geeignete und sorgfältige Regelung (z. B. durch ein Pyrometer) der Temperatur, auf welche der Manganstahl erhitzt wird, der Gehalt an vorhandener Härtungskohle in dem fertigen Produkt mit Genauigkeit geregelt werden kann, so daß zäher Manganstahl von gleichmäßigeren Eigenschaften hergestellt werden kann, als es bisher möglich war.It has been found that by treating manganese steel in the manner described the content of hardening carbon; which remains in the toughened product, according to the The temperature changes to which the manganese steel was brought before it was immersed in cold water. The lower the salary of hardening carbon in the finished product, the tougher and less hard the product and the greater the content of The hardening carbon is, the harder and less tough the product is. It can therefore be seen that by suitable and careful regulation (e.g. by a pyrometer) the temperature to which the manganese steel is heated the content of hardening carbon present in the finished product can be controlled with accuracy so that tough manganese steel of more uniform properties can be produced than before was possible.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE155810C true DE155810C (en) |
Family
ID=422248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT155810D Active DE155810C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE155810C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5720070A (en) * | 1996-03-21 | 1998-02-24 | Commonwealth Edison Company | Weld cleaning machine |
-
0
- DE DENDAT155810D patent/DE155810C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5720070A (en) * | 1996-03-21 | 1998-02-24 | Commonwealth Edison Company | Weld cleaning machine |
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