PL73382B2 - - Google Patents
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- PL73382B2 PL73382B2 PL14751671A PL14751671A PL73382B2 PL 73382 B2 PL73382 B2 PL 73382B2 PL 14751671 A PL14751671 A PL 14751671A PL 14751671 A PL14751671 A PL 14751671A PL 73382 B2 PL73382 B2 PL 73382B2
- Authority
- PL
- Poland
- Prior art keywords
- cast iron
- weight
- molds
- composition
- iron
- Prior art date
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- 229910001018 Cast iron Inorganic materials 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 9
- 229910052791 calcium Inorganic materials 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- 229910052698 phosphorus Inorganic materials 0.000 claims description 7
- 230000035939 shock Effects 0.000 claims description 6
- 229910052787 antimony Inorganic materials 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000011572 manganese Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims 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 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000010936 titanium Substances 0.000 description 6
- 239000011575 calcium Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 milybdenum Chemical compound 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Description
Pierwszenstwo: Zgloszenie ogloszono: 15.05.1973 Opis patentowy opublikowano: 31.01.1975 73382 KI. 18b,l/08 MKP C21c 1/08 Twórcy wynalazku: Edmund Machynia, Jan Zakrzewski, Jan Barwinski Uprawniony z patentu tymczasowego: Instytut Odlewnictwa, Kraków (Polaka) Zeliwo niskostopowe odporne na wstrzasy termiczne oraz sposób jego otrzymywania Przedmiotem wynalazku jest zeliwo niskosto¬ powe odporne na wsitrzasy termiczne przeznaczo¬ ne do wykonywania form zwlaszcza form kokilo- wych, oraz sposób jego otrzymywania.Dotychczas znanym materialem do wykonywa¬ nia form kokilowych jest zeliwo szare posiadaja¬ ce strukture ferrytyczna, ferrytyczno-periityczna, perlityczna lub zeliwo stopowe zawierajace w swym skladzie drogie i deficytowe skladniki takie jak: nikiel, miedz, milibden, chrom i aluminium posiadajace w swej strukturze grafit platkowy lub sferoidalny.Otrzymanie zeliwa stopowego, a zwlaszcza sfe- roidalnego o jednorodnym skladzie chemicznym, bez wtracen niemetalicznych nie rozpuszczonych skladników stopowych wymaga zarówno stosowa¬ nia specjalnej technologii jako i odpowiedniego wyposazenia na przyklad piece elektryczne.Niska odpornosc na wstrzasy termiczne zarów¬ no zeliwa szarego jak i dotychczas znanych ga¬ tunków zeliwa stopowego powoduje mala zywot¬ nosc form kokilowych, co jest powodem czestego wylaczania ich z produkcji oraz dodatkowych kosztów zwiazanych z remontami i postojami.Celem wynalazku jest usuniecie powyzszych nie¬ dogodnosci, a mianowicie podwyzszenie odporno¬ sci zeliwa na wstrzasy termiczne, a zadaniem technicznym opracowanie skladu zeliwa, które za¬ pewniloby duza zywotnosc urzadzen narazonych na wsitrzasy termiczne, a zwlaszcza form i kokil, 10 15 30 przy zachowaniu odpowiednio wysokich wlasnosci wytrzymalosciowych.Zadanie to zostalo rozwiazane przez opracowa¬ nie odpowiedniego skladu ilosciowego i jakoscio¬ wego zeliwa niskostopowego. Zeliwo niskostopowe wedlug wynalazku uzyskuje sie przez dodanie w trakcie modyfikacji zeliwa wyjsciowego, zawie¬ rajacego w swym skladzie 2,8^3,7%, C; 1,4—3,0% Si; 0,2—1,2% Mn oraz maksymalnie 0,12%; S, anty¬ monu, tytanu i wapnia w postaci mieszaniny czy¬ stych skladnik6w lub ich stopów z zelazem, man¬ ganem, weglem i krzemem, w ilosci nie mniej¬ szej niz 0,06% ciezarowych antymonu; 0,10% cie¬ zarowych fosforu; 0,05%; ciezarowych tytanu i 0,02% ciezarowych wapnia, tak aby uzyskac w efekcie zeliwo zajwierajace 0,06—0,45% ciezaro¬ wych Sb; 0,2—0,54% ciezarowych P; 0,09—0,20% ciezarowych Ti oraz 0,O2—0,O8%; ciezarowych Ca.Modyfikacje przeprowadza sie w typowej ka¬ dzi odlewniczej, przez dodanie do zeliwa o tem¬ peraturze 1480^1i280°C modyfikatora o skladzie podanym wyzej.Ilosc wprowadzonego czynnika modyfikujacego zalezy od skladu chemicznego zeliwa wyjsciowego z tym jednak, ze ilosc wprowadzonych pierwiast¬ ków wynosi co najmniej 0,06%, ciezarowych an¬ tymonu; 0,10% ciezarowych fosforu; 0,05%, cieza¬ rowych tytanu i 0,Q2%j ciezarowych wapnia.Zeliwo wedlug wynalazku moze byc produko¬ wane w warunkach pracy kazdej odlewni ponie- 73 38273 382 waz nie wymaga stosowania specjalnego wyposa¬ zenia.Zeliwo wedlug wynalazku moze zawierac pew¬ na ilosc miedzi, niklu, chromu i aluminium z tym, ze sumaryczna ich zawartosc nie powinna prze¬ kraczac 0,8%, ciezarowych.Przyklady skladu zeliwa wedlug wynalazku: Przyklad I C = 2,9% wagowo Si = 3,0% Mn = 0,2% P = 0,50% S = 0,07% Sb = 0,06% Ti = 0,15% Ca = 0,02% Przyklad II C = 3,7% wagowo Si = 1,9% Mn = 0,8% P = 0,25% S = 0,10% Sb = 0,35% Ti = 0,09% Ca = 0,06% PL PLPriority: Application announced: May 15, 1973 Patent description was published: January 31, 1975 73382 KI. 18b, I / 08 MKP C21c 1/08 Inventors: Edmund Machynia, Jan Zakrzewski, Jan Barwinski Authorized by the provisional patent: Foundry Research Institute, Kraków (Pole) Low-alloy cast iron resistant to thermal shocks and the method of its preparation The subject of the invention is low-alloy cast iron resistant to thermal shocks, especially for making molds, and the method of its preparation. Until now, gray cast iron having a ferritic, ferritic-peritic, pearlitic structure or alloy cast iron containing in its form The composition of expensive and scarce components such as: nickel, copper, milybdenum, chromium and aluminum having in their structure flake or spheroidal graphite. ¬ special technology and appropriate equipment For example, electric furnaces. The low resistance to thermal shocks of both gray cast iron and the previously known types of alloy cast iron causes a short life of die-cast molds, which is the reason for their frequent disconnection from production and additional costs related to repairs and downtimes. The aim of the invention is to eliminate the above-mentioned inconveniences, namely to increase the resistance of cast iron to thermal shocks, and the technical task is to develop a cast iron composition that would ensure a long service life of devices exposed to thermal shock, especially molds and molds, while maintaining adequately high strength properties. This problem was solved by developing an appropriate quantitative and qualitative composition of low-alloy cast iron. According to the invention, the low-alloy cast iron is obtained by adding, during the modification, the starting cast iron, which contains in its composition 2.8 to 3.7%, C; 1.4-3.0% Si; 0.2-1.2% of Mn and maximum 0.12%; S, antimony, titanium and calcium in the form of a mixture of pure components or their alloys with iron, manganese, carbon and silicon, in an amount not less than 0.06% by weight of antimony; 0.10% by weight phosphorus; 0.05%; titanium and 0.02 weight percent calcium, so as to obtain cast iron containing 0.06-0.45 weight percent Sb; 0.2-0.54 weight% P; 0.09-0.20% weight of Ti and 0.02-0.0.8%; The modification is carried out in a typical casting pot by adding to the cast iron with a temperature of 1480 ° C and 280 ° C a modifier of the composition given above. The amount of modifying agent introduced depends on the chemical composition of the starting cast iron, but the amount of Of at least 0.06% by weight of anthymon; 0.10% by weight of phosphorus; 0.05% by weight of titanium and 0.2% by weight of calcium. a certain amount of copper, nickel, chromium and aluminum, but their total content should not exceed 0.8% by weight. Examples of cast iron composition according to the invention: Example IC = 2.9% by weight Si = 3.0% Mn = 0.2% P = 0.50% S = 0.07% Sb = 0.06% Ti = 0.15% Ca = 0.02% Example II C = 3.7% by weight Si = 1.9 % Mn = 0.8% P = 0.25% S = 0.10% Sb = 0.35% Ti = 0.09% Ca = 0.06% PL PL
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL14751671A PL73382B2 (en) | 1971-04-14 | 1971-04-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL14751671A PL73382B2 (en) | 1971-04-14 | 1971-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL73382B2 true PL73382B2 (en) | 1974-08-31 |
Family
ID=19954057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL14751671A PL73382B2 (en) | 1971-04-14 | 1971-04-14 |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL73382B2 (en) |
-
1971
- 1971-04-14 PL PL14751671A patent/PL73382B2/pl unknown
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