AT159939B - Wear-resistant parts of shredding machines. - Google Patents
Wear-resistant parts of shredding machines.Info
- Publication number
- AT159939B AT159939B AT159939DA AT159939B AT 159939 B AT159939 B AT 159939B AT 159939D A AT159939D A AT 159939DA AT 159939 B AT159939 B AT 159939B
- Authority
- AT
- Austria
- Prior art keywords
- sep
- wear
- resistant parts
- molybdenum
- shredding machines
- Prior art date
Links
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims description 8
- 239000011733 molybdenum Substances 0.000 claims description 8
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 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 claims description 2
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 229910000617 Mangalloy Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Crushing And Grinding (AREA)
Description
<Desc/Clms Page number 1>
Verschleissfeste Teile von Zerkleinerungsmaschinen.
Die Erfindung bezieht sich auf verschleissfeste Teile von Zerkleinerungsmaschinen u. dgl., wie Blechbacken, Mahlplatten, Mahlringe usw., aus Chrom und Molybdän enthaltenden StahHegierungen mit 10 bis 25% Mangan und 0#9 bis 1'5% Kohlenstoff, in welchen Molybdän ganz oder teilweise durch Wolfram im Verhältnis 1 : 2 ersetzt sein kann, und besteht darin, dass die Stahllegierungen ausser den üblichen Begleitstoffen, wie Silizium usw., 1'5 bis 2'5% Chrom und 0'15 bis 1% Molybdän enthalten.
Als besonders vorteilhaft haben sich verschleissfeste Teile aus einer Stahllegierung mit
EMI1.1
<tb>
<tb> 1'15 <SEP> bis <SEP> 1-30% <SEP> Kohlenstoff,
<tb> 11-50"13. <SEP> 0011/ <SEP> Mangan,
<tb> 0'25" <SEP> 0'35% <SEP> Silizium,
<tb> 1'80" <SEP> 2'20% <SEP> Chrom,
<tb> 0'20" <SEP> 0'40% <SEP> Molybdän
<tb>
erwiesen.
So haben sich z. B. erfindungsgemässe Brechbacken gegenüber den gebräuchlichen Biechbacken aus austenitischem Manganstahl mit etwa 1% Kohlenstoff und 13 bis 15% Mangan infolge ihrer höheren Verschleissfestigkeit als wesentlich leistungsfähiger erwiesen. Beispielsweise zeigten sich erfindungsgemässe Brechbacken bei der Bearbeitung von härtesten Gesteinssorten nach längerem Betrieb noch vollkommen unverändert, während gewöhnliche Brechbacken bereits nach wenigen Stunden weitgehend abgenutzt waren.
Es ist zwar schon vorgeschlagen worden, Brechbacken aus austenitischem Manganstahl herzu- stellen, der eines oder mehrere der Elemente Chrom, Wolfram oder Molybdän vorzugsweise in Mengen von 3#7% enthält. Doch haben sich Brechbacken dieser vorzugsweisen Zusammensetzung wegen zu grosser Sprödigkeit nicht bewährt.
PATENT-ANSPRÜCHE :
EMI1.2
haltenden Stahllegierungen mit 10 bis 25% Mangan und 0#9 bis 1#5% Kohlenstoff, in welchen Molybdän ganz oder teilweise durch Wolfram im Verhältnis von 1 : 2 ersetzt sein kann, dadurch gekennzeichnet, dass die Stahllegierungen 1#5 bis 2'5% Chrom und 0#15 bis 1% Molybdän enthalten.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Wear-resistant parts of shredding machines.
The invention relates to wear-resistant parts of shredding machines and the like. Like., Such as sheet metal jaws, grinding plates, grinding rings, etc., made of chromium and molybdenum-containing steel alloys with 10 to 25% manganese and 0 # 9 to 1'5% carbon, in which molybdenum is wholly or partially replaced by tungsten in a ratio of 1: 2 can, and consists in the fact that the steel alloys contain, in addition to the usual accompanying substances such as silicon etc., 1'5 to 2'5% chromium and 0'15 to 1% molybdenum.
Wear-resistant parts made from a steel alloy have proven to be particularly advantageous
EMI1.1
<tb>
<tb> 1'15 <SEP> to <SEP> 1-30% <SEP> carbon,
<tb> 11-50 "13. <SEP> 0011 / <SEP> manganese,
<tb> 0'25 "<SEP> 0'35% <SEP> silicon,
<tb> 1'80 "<SEP> 2'20% <SEP> chrome,
<tb> 0'20 "<SEP> 0'40% <SEP> molybdenum
<tb>
proven.
So z. B. breaking jaws according to the invention have been shown to be much more efficient than the conventional Biechbacken made of austenitic manganese steel with about 1% carbon and 13 to 15% manganese due to their higher wear resistance. For example, crushing jaws according to the invention were found to be completely unchanged after a long period of operation when machining the hardest types of rock, while conventional crushing jaws were largely worn out after just a few hours.
It has already been proposed to manufacture crushing jaws from austenitic manganese steel, which contains one or more of the elements chromium, tungsten or molybdenum, preferably in amounts of 3-7%. However, crushing jaws of this preferred composition have not proven themselves because they are too brittle.
PATENT CLAIMS:
EMI1.2
holding steel alloys with 10 to 25% manganese and 0 # 9 to 1 # 5% carbon, in which molybdenum can be completely or partially replaced by tungsten in a ratio of 1: 2, characterized in that the steel alloys 1 # 5 to 2'5 % Chromium and 0 # 15 to 1% molybdenum.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT159939T | 1938-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT159939B true AT159939B (en) | 1940-12-27 |
Family
ID=3650660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT159939D AT159939B (en) | 1938-03-30 | 1938-03-30 | Wear-resistant parts of shredding machines. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT159939B (en) |
-
1938
- 1938-03-30 AT AT159939D patent/AT159939B/en active
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