PL130236B1 - Alloy cast iron resistant to impact-abrasive wear,especially for grinding meadiums for ball mills - Google Patents
Alloy cast iron resistant to impact-abrasive wear,especially for grinding meadiums for ball millsInfo
- Publication number
- PL130236B1 PL130236B1 PL22719080A PL22719080A PL130236B1 PL 130236 B1 PL130236 B1 PL 130236B1 PL 22719080 A PL22719080 A PL 22719080A PL 22719080 A PL22719080 A PL 22719080A PL 130236 B1 PL130236 B1 PL 130236B1
- Authority
- PL
- Poland
- Prior art keywords
- cast iron
- impact
- grinding
- abrasive wear
- meadiums
- Prior art date
Links
- 229910001018 Cast iron Inorganic materials 0.000 title claims description 11
- 229910045601 alloy Inorganic materials 0.000 title description 3
- 239000000956 alloy Substances 0.000 title description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 239000011651 chromium Substances 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 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 5
- 239000010703 silicon Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000005266 casting Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- -1 chromium copper-manganese-copper Chemical compound 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Description
Przedmiotem wynalazku jest zeliwo stopowe o bardzo wysokiej odpornosci na zuzycie udarowo- scierne, majace zastosowanie na odlewane elemen¬ ty maszyn, pracujace w warunkach ciaglego i in¬ tensywnego scierania przy jednoczesnym wystepo¬ waniu zróznicowanych obciazen dynamicznych zwlaszcza na mielniki do mlynów rozdrabniajacych rudy metali, klinkier, wegiel i inine.Znany jest caly szereg tworzyw odlewniczych na mielniki, zawierajacych na przyklad 1,5% wegla, 0,6% krzemu, 1,3% manganu, 1,2% chromu, 0,5% molibdenu, 0,5% wanadu. Cecha charakterystyczna tych materialów jest dominujacy wplyw pierwiast¬ ków stopowych na hartownosc odlewów, ich trwa¬ losc, rozkruiszaLnosc oraz inne wlasnosci uzytkowe.Znany jest z opisu wynalazku dla swiadectwa autorskiego ZSRR nr 378 493 stop zawierajacy w procentach wagowych 1,5—4,3% wegla, 1,5—5,0% manganu, 0,4—1,2% krzemu, 12,0—30,0% chromu, reszte zelaza.Zeliwo wedlug wynalazku zawiera w procentach wagowych 1,5—2,5% wegla, ponizej 1,0% krzemu, 2,0—4,0% manganu, 12,0—16,0% chromu, 0,1—0,5% miedzi i reszte zelaza.Odlewy wykonane z wyzej wymienionego chro- mowo-manganowo-miedziowego zeliwa, nalezy ob¬ robic cieplnie przez wyzarzanie w temperaturze 950°C i chlodzenie na powietrzu. 10 15 20 25 2 Zeliwo wedlug wynalazku przy zastosowaniu wlasciwej technologii wykonywania odlewów oraz przeprowadzenia dodatkowej obróbki cieplnej za¬ pewnia otrzymanie odpowiedniej jakosci odlewów o wysokiej twardosci, dobrej odpornosci na roz- kruszende, a przez to wysokiej odpornosci na zu¬ zycie udarowo-scierne.Przyklad I. C — 2,18%, Si — 0,80%, Mn — 3,40%, Cu — 0,23%, Cr — 12,31%, Fe — reszta.Zeliwo w etanie surowym po odlaniu posiada nastepujace wlasnosci HV = 541 i Rm = 290,4 MPa.Po obróbce cieplnej zeliwo posiada nastepujace wlasnosci HV = 796 i Rm = 396,4 MPa.Przyklad II. C — 2,48%, Si — 0,96%, Mn — 3,90%, Cu — 0,10%, Cr — 14,80%, Fe — reszta.Zeliwo w stanie surowym po odlaniu posiada nastepujace wlasnosci: HV = 440 i Rm = 322,3 MPa.Po obróbce cieplnej zeliwo posiada nastepujace wlasnosci: HV = 810, R m =390,5 MPa.Zastrzezenie patentowe Zeliwo odporne na zuzycie udlarowo-scierne, zwlaszcza na mielniki do mlynów kulowych, zawie¬ rajace w procentach wagowych 1,5—2,5% wegla, 2,0—4,0% manganu, 12,0—16,0% chromu i ponizej 1,0% krzemu, reszta zelazo, znamienne tym, ze zawiera 0,1—0,5% miedzi. 130 236 PLThe subject of the invention is an alloy cast iron with a very high resistance to impact and abrasive wear, applicable to cast machine elements, operating in conditions of continuous and intense abrasion with simultaneous occurrence of various dynamic loads, especially for metal ore grinding mills, clinker, carbon and others. There is a wide range of grinding materials such as 1.5% carbon, 0.6% silicon, 1.3% manganese, 1.2% chromium, 0.5% molybdenum, 0, 5% vanadium. A characteristic feature of these materials is the dominant effect of alloying elements on the hardenability of the castings, their durability, roughening properties and other functional properties. It is known from the description of the invention for the USSR copyright certificate No. 378,493 an alloy containing in percent by weight 1.5-4.3 % carbon, 1.5-5.0% manganese, 0.4-1.2% silicon, 12.0-30.0% chromium, residual iron. According to the invention, cast iron contains 1.5-2.5% by weight % carbon, less than 1.0% silicon, 2.0-4.0% manganese, 12.0-16.0% chromium, 0.1-0.5% copper and residual iron. Castings made of the above-mentioned chromium copper-manganese-copper cast iron, must be heat treated by annealing at 950 ° C and cooling in air. The cast iron according to the invention, with the use of the appropriate technology for making castings and carrying out additional heat treatment, ensures the obtaining of appropriate quality castings with high hardness, good resistance to fracture, and thus high resistance to impact and abrasive wear. Example I. C - 2.18%, Si - 0.80%, Mn - 3.40%, Cu - 0.23%, Cr - 12.31%, Fe - the rest. Cast iron in crude form after casting has the following properties HV = 541 and Rm = 290.4 MPa. After heat treatment, cast iron has the following properties HV = 796 and Rm = 396.4 MPa. Example II. C - 2.48%, Si - 0.96%, Mn - 3.90%, Cu - 0.10%, Cr - 14.80%, Fe - the rest. The raw cast iron, after casting, has the following properties: HV = 440 and Rm = 322.3 MPa. After heat treatment, the cast iron has the following properties: HV = 810, R m = 390.5 MPa. Patent claim Cast iron resistant to impact-abrasive wear, especially for ball mills, containing in percentages by weight 1.5-2.5% carbon, 2.0-4.0% manganese, 12.0-16.0% chromium and less than 1.0% silicon, the remainder iron, characterized in that it contains 0, 1 - 0.5% copper. 130 236 PL
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL22719080A PL130236B1 (en) | 1980-10-08 | 1980-10-08 | Alloy cast iron resistant to impact-abrasive wear,especially for grinding meadiums for ball mills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL22719080A PL130236B1 (en) | 1980-10-08 | 1980-10-08 | Alloy cast iron resistant to impact-abrasive wear,especially for grinding meadiums for ball mills |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL227190A1 PL227190A1 (en) | 1982-04-13 |
| PL130236B1 true PL130236B1 (en) | 1984-07-31 |
Family
ID=20005388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL22719080A PL130236B1 (en) | 1980-10-08 | 1980-10-08 | Alloy cast iron resistant to impact-abrasive wear,especially for grinding meadiums for ball mills |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL130236B1 (en) |
-
1980
- 1980-10-08 PL PL22719080A patent/PL130236B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL227190A1 (en) | 1982-04-13 |
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