PL203591B1 - Method of modification of the properties of metals and alloys in a liquid state - Google Patents

Method of modification of the properties of metals and alloys in a liquid state

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Publication number
PL203591B1
PL203591B1 PL354382A PL35438202A PL203591B1 PL 203591 B1 PL203591 B1 PL 203591B1 PL 354382 A PL354382 A PL 354382A PL 35438202 A PL35438202 A PL 35438202A PL 203591 B1 PL203591 B1 PL 203591B1
Authority
PL
Poland
Prior art keywords
alloys
metals
properties
liquid state
modification
Prior art date
Application number
PL354382A
Other languages
Polish (pl)
Other versions
PL354382A1 (en
Inventor
law Cholewa Miros
Original Assignee
Politechnika Sl Aska
Filing date
Publication date
Application filed by Politechnika Sl Aska filed Critical Politechnika Sl Aska
Priority to PL354382A priority Critical patent/PL203591B1/en
Publication of PL354382A1 publication Critical patent/PL354382A1/en
Publication of PL203591B1 publication Critical patent/PL203591B1/en

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Description

Opis wynalazku Przedmiotem wynalazku jest sposób metalurgicznej obróbki metali i stopów w stanie ciek lym. Znane s a sposoby modyfikacji np. stopów za pomoc a: sodu, fosforu, boru, tytanu lub zwi azków chemicznych w postaci gazowej. Sposób wed lug wynalazku polega na tym, ze przez obróbk e na drodze jonizacji, gazów ko- rzystnie tlenu do postaci-odpowiednio: trójatomowego lub atomowego tlenu i wprowadza si e do k apieli metalowej, przy czym na skutek wysokiej aktywno sci gazy te reaguj ac w metalu lub stopie daj a zwi az- ki, które umacniaj a zakrzep ly stop. Sposób pozwala na popraw e w lasno sci mechanicznych np. twardo sci i wytrzyma lo sci. Poza czystymi gazami jednosk ladnikowymi korzystne jest tak ze stosowanie aktywowanego powietrza. Sposób charakteryzuje si e fizycznymi i/lub chemicznymi reakcjami mi edzy ciek lymi metalami lub stopami a aktywnymi, alotropowymi odmianami gazów jak np.: ozon, atomowy azot, atomowy wo- dór i inne lub mieszaninami zawieraj acymi podobne gazy, gdzie produktami reakcji s a fazy lub zwi azki umacniaj ace metale i stopy tj. wymuszaj ace wzrost ich twardo sci i/lub wytrzyma lo sci. P r z y k l a d 1. 2 kg stopu AM-5 z dodatkiem 0,4% Ti i 0,03% B po stopieniu w piecu indukcyjnym i przegrzaniu do temperatury 1000°C przedmuchuje si e powietrzem przetworzonym w generatorze ozonu o wydaj- no sci do 0,056 mg O 3 /s w czasie 200 s, przy ci snieniu 25 Pa i przep lywie 3 • 10 3 m 3 /s. Stop odlewa si e do kokili. P r z y k l a d 2. 2 kg stopu AK-12 5 z dodatkiem 0,3% Ti i 0,03% B po stopieniu w piecu indukcyjnym i prze- grzaniu do temperatury 900° przedmuchuje si e powietrzem przetworzonym w generatorze ozonu o wydajno sci do 0,056 mgO 3 /s w czasie 240 s, przy ci snieniu 0,1 MPa i przep lywie 12,5 • 10 -3 m 3 /s. Stop odlewa si e do formy piaskowej. PLDescription of the invention The present invention relates to a method of metallurgical treatment of metals and alloys in a liquid state. There are known methods of modification of, for example, alloys with: sodium, phosphorus, boron, titanium or chemical compounds in gaseous form. The method according to the invention consists in the fact that by treatment by means of ionization, gases, preferably oxygen, to the form, respectively: tratomic or atomic oxygen, are introduced into the metal bath, and due to the high activity of these gases, they react in the metal or alloy they give rise to compounds that strengthen the clotted alloy. The method allows for the improvement of mechanical properties, e.g. hardness and strength. In addition to pure single-component gases, it is also advantageous to use activated air. The method is characterized by physical and / or chemical reactions between liquid metals or alloys and active, allotropic forms of gases, such as ozone, atomic nitrogen, atomic hydrogen and others, or mixtures containing similar gases, where the reaction products are phases or compounds strengthening metals and alloys, i.e. forcing an increase in their hardness and / or strength. Example 1. 2 kg of AM-5 alloy with the addition of 0.4% Ti and 0.03% B, after melting in an induction furnace and superheating to 1000 ° C, are blown with air processed in an ozone generator with a capacity of 0.056 mg O 3 / s during 200 s, at a pressure of 25 Pa and a flow rate of 3 • 10 3 m 3 / s. The alloy is poured into the die. Example 2. 2 kg of AK-12 alloy 5 with the addition of 0.3% Ti and 0.03% B, after melting in an induction furnace and heating to 900 ° C, are blown with air processed in an ozone generator with a capacity of 0.056 mgO 3 / s during 240 s, at a pressure of 0.1 MPa and a flow of 12.5 • 10 -3 m 3 / s. The alloy is poured into a sand mold. PL

Claims (1)

1. Zastrze zenie patentowe Sposób modyfikacji w la sciwo sci metali i stopów w stanie ciek lym, znamienny tym, ze przez ob- róbk e na drodze jonizacji, gazów korzystnie tlenu do postaci-odpowiednio: trójatomowego lub atomo- wego tlenu i wprowadza si e do k apieli metalowej, przy czym na skutek wysokiej aktywno sci gazy te reaguj ac w metalu lub stopie daj a zwiazki, które umacniaj a zakrzep ly stop. Departament Wydawnictw UP RP Cena 2,00 z l. PL1. Claim 1. A method of modifying the properties of metals and alloys in a liquid state, characterized in that by treatment by ionization of gases, preferably oxygen, to the form, respectively: tratomic or atomic oxygen, and introducing for metal bath, whereby, due to high activity, these gases react in the metal or alloy to give compounds that strengthen the solidified alloy. Publishing Department of the UP RP Price 2.00 per PLN PL
PL354382A 2002-06-10 Method of modification of the properties of metals and alloys in a liquid state PL203591B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL354382A PL203591B1 (en) 2002-06-10 Method of modification of the properties of metals and alloys in a liquid state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL354382A PL203591B1 (en) 2002-06-10 Method of modification of the properties of metals and alloys in a liquid state

Publications (2)

Publication Number Publication Date
PL354382A1 PL354382A1 (en) 2003-12-15
PL203591B1 true PL203591B1 (en) 2009-10-30

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