PL96071B1 - AGENT MODIFYING AND TIME EXTENDING THE EFFECT OF MODIFICATION OF ALUMINUM ALLOYS WITH EUTECTIC OR SUB-EUTECTIC SILICON - Google Patents
AGENT MODIFYING AND TIME EXTENDING THE EFFECT OF MODIFICATION OF ALUMINUM ALLOYS WITH EUTECTIC OR SUB-EUTECTIC SILICON Download PDFInfo
- Publication number
- PL96071B1 PL96071B1 PL18479475A PL18479475A PL96071B1 PL 96071 B1 PL96071 B1 PL 96071B1 PL 18479475 A PL18479475 A PL 18479475A PL 18479475 A PL18479475 A PL 18479475A PL 96071 B1 PL96071 B1 PL 96071B1
- Authority
- PL
- Poland
- Prior art keywords
- eutectic
- modification
- effect
- aluminum alloys
- sub
- Prior art date
Links
- 230000004048 modification Effects 0.000 title claims description 10
- 238000012986 modification Methods 0.000 title claims description 10
- 239000003795 chemical substances by application Substances 0.000 title claims description 9
- 230000000694 effects Effects 0.000 title claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 title claims description 6
- 230000005496 eutectics Effects 0.000 title claims description 5
- 229910052710 silicon Inorganic materials 0.000 title claims description 5
- 239000010703 silicon Substances 0.000 title claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 10
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 8
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 229910001385 heavy metal Inorganic materials 0.000 description 5
- 239000011780 sodium chloride Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 235000011164 potassium chloride Nutrition 0.000 description 4
- 239000001103 potassium chloride Substances 0.000 description 4
- 235000013024 sodium fluoride Nutrition 0.000 description 4
- 239000011775 sodium fluoride Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
Przedmiotem wynalazku jest srodek modyfiku¬ jacy i przedluzajacy czas trwania efektu modyfi¬ kacji stopów aluminium o eutektycznej lub podeu¬ tektycznej zawartosci krzemu, znajdujacy zastoso¬ wanie w odlewnictwie i hutnictwie.Dotychczas jako srodki modyfikujace stosuje sie najczesciej sód metaliczny lub mieszaniny soli, o skladzie przedstawionym w tabeli 1.Tabela 1 Lp. 1 2 3 4 Sklad chemiczny mieszanin w % ciezarowych i NaF 60 50 23 NaCl 40 27 62,5 23 KC1 23 12,5 23 CaF2 31 Znane srodki modyfikujace zapewniaja efekt mo¬ dyfikacji, o czasie trwania 15—30 minut, co w przypadku wykonywania wiekszych partii odle¬ wów jest efektem krótkotrwalym, nie gwarantuja¬ cym optymalnych wlasciwosci stopów po uplywie tego czasu.Celem wynalazku jest opracowanie srodka mody¬ fikujacego, zapewniajacego przedluzenie czasu trwania efektu modyfikacji stopów aluminium o eutektycznej lub podeutektycznej zawartosci krze- mu, co umozliwia otrzymywanie odlewów o opty¬ malnych wlasnosciach w okresie do 3 godzin po zastosowaniu srodka.Istote wynalazku stanowi srodek, zawierajacy ciezarowo 18—23°/o fluorku sodu, 40—55°/o chlorku sodu, 7—15°/o chlorku potasu i 2—45% diatomitu oraz jako substancje obciazajaca stopy metali ciez¬ kich lub sole metali ciezkich, których dodatek w ilosci 0—50% ciezarowych wprowadza sie w celu regulowania glebokosci zanurzania srodka w ciek¬ lym metalu, a przez to zmiany intensywnosci pro¬ cesu modyfikacji.Srodek, wedlug wynalazku, zapewnia przedluze¬ nie czasu trwania efektu modyfikacji do okolo 3 go¬ dzin, dzieki czemu osiaga sie bardzo drobnoziar¬ nista strukture stopów oraz wzrost wlasnosci wy¬ trzymalosciowych odlewów.Pr z y k l a d. Srodek w postaci pastylki, wpro¬ wadzony do zbiornika z cieklym stopem aluminium o eutektycznej zawartosci krzemu Ak 11, zawiera nastepujace skladniki, podane w procentach cieza¬ rowych: fluorek sodu — 26,1%, chlorek sodu — 54,7%, chlorek potasu — 10,5°/o oraz diatomit — 8,7%.Laczna masa pastylki w odniesieniu do masy wsadu metalowego wynosi 1% ciezarowy. W wy¬ niku procesu modyfikacji, trwajacego 3 godziny, uzyskuje sie stop aluminium o strukturze drobno¬ ziarnistej, wykazujacej nastepujace wlasnosci: w formie piaskowej wytrzymalosc na rozciaganie Rm 96 07196 071 3 wynosi 18 kG/mm2, a wydluzenie A5 — 4,0%, na¬ tomiast w formie metalowej — odpowiednio Rm — 23 kG/mm2, a wydluzenie A5 — 4,5%.Na rysunku przedstawiono wykres, ilustrujacy wplyw czasu po modyfikacji na wlasnosci wytrzy¬ malosciowe stopu Al 11, przy czym krzywa 1 dotyczy srodka modyfikujacego, wedlug wynalazku, a krzywa 2 dotyczy znanego modyfikatora w pos¬ taci sodu metalicznego. sodu, chlorek sodu i chlorek potasu, znamienny tym, ze zawiera 18—23% cie¬ zarowych fluorku sodu, 40—55% ciezarowych chlorku sodu, 7—15°/o ciezarowych chlorku potasu i 2—45% ciezarowych diatomitu oraz z substancji obciazajacej w postaci stopów metali ciezkich lub soli metali ciezkich w ilosci 0—50% ciezarowych.I r r r |<7 16 mt 60 IZO Czas pa modyfikacji [mirfj OZGraf. Zam. 91 (120+17 egz.) Cena 45 zl PLThe subject of the invention is an agent modifying and extending the duration of the modification effect of aluminum alloys with eutectic or hypotectic silicon content, which can be used in foundry and metallurgy. shown in Table 1. Table 1 No. 1 2 3 4 Chemical composition of mixtures in weight% and NaF 60 50 23 NaCl 40 27 62.5 23 KC1 23 12.5 23 CaF2 31 Known modifying agents provide a modification effect over time the duration of 15-30 minutes, which in the case of making larger batches of castings is a short-term effect, not guaranteeing the optimal properties of the alloys after this time. The aim of the invention is to develop a modifying measure that ensures the prolongation of the modification effect of aluminum alloys with eutectic or sub-eutectic silicon content, which makes it possible to obtain castings with optimal properties within 3 hours of The present invention is an agent containing by weight 18-23% sodium fluoride, 40-55% sodium chloride, 7-15% potassium chloride and 2-45% diatomite, and as a weighting agent for heavy metal alloys Heavy metal or heavy metal salts, the addition of which in an amount of 0-50% by weight is introduced to regulate the depth of immersion of the agent in the liquid metal, and thus change the intensity of the modification process. The agent, according to the invention, provides an extended time duration of the modification effect up to about 3 hours, thanks to which a very fine-grained structure of the alloys and an increase in the strength properties of castings are achieved.Pr cycla d. The agent in the form of a pellet, introduced into the tank with a liquid aluminum alloy with eutectic silicon content Ak 11, contains the following ingredients, given in weight percentages: sodium fluoride - 26.1%, sodium chloride - 54.7%, potassium chloride - 10.5% and diatomite - 8.7%. based on the weight of the metal charge is 1% by weight. As a result of the modification process, which takes 3 hours, an aluminum alloy with a fine grain structure is obtained, showing the following properties: in the sand form the tensile strength Rm 96 07196 071 3 is 18 kg / mm2 and the elongation A5 is 4.0% , while in the metal form - respectively Rm - 23 kg / mm 2, and elongation A5 - 4.5%. The figure shows a graph showing the effect of time after modification on the strength properties of the Al 11 alloy, with the curve 1 relating to the medium according to the invention, and curve 2 relates to the known sodium metallic modifier. sodium, sodium chloride and potassium chloride, characterized in that it contains 18-23% by weight of sodium fluoride, 40-55% by weight of sodium chloride, 7-15% by weight of potassium chloride and 2 to 45% by weight of diatomite, and loading in the form of heavy metal alloys or heavy metal salts in the amount of 0-50% of the weight. I yyy | <7 16 mt 60 IZO Modification time [mirfj OZGraf. Order 91 (120 + 17 copies) Price PLN 45 PL
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL18479475A PL96071B1 (en) | 1975-11-17 | 1975-11-17 | AGENT MODIFYING AND TIME EXTENDING THE EFFECT OF MODIFICATION OF ALUMINUM ALLOYS WITH EUTECTIC OR SUB-EUTECTIC SILICON |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL18479475A PL96071B1 (en) | 1975-11-17 | 1975-11-17 | AGENT MODIFYING AND TIME EXTENDING THE EFFECT OF MODIFICATION OF ALUMINUM ALLOYS WITH EUTECTIC OR SUB-EUTECTIC SILICON |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL96071B1 true PL96071B1 (en) | 1977-12-31 |
Family
ID=19974289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL18479475A PL96071B1 (en) | 1975-11-17 | 1975-11-17 | AGENT MODIFYING AND TIME EXTENDING THE EFFECT OF MODIFICATION OF ALUMINUM ALLOYS WITH EUTECTIC OR SUB-EUTECTIC SILICON |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL96071B1 (en) |
-
1975
- 1975-11-17 PL PL18479475A patent/PL96071B1/en unknown
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