VERFAHREN ZUR ULTRASCHALLBEHANDLUNG EINER ÜBEREUTEKTISCHEN SILUMIN-SCHMELZE

The invention relates to a metallurgy of light alloys in particular to methods for ultrasonic treatment of melts in a production of shaped castings from hypereutectic silumins of a piston group. The method consists of a degasification and a following modification of the melt by introducing in it mod...

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Hauptverfasser:	ESKIN, GEORGY IOSIFOVICH, SUKHOLINSKY-MESTECHKIN, SERGEI LEONIDO, SHAPIRO, BORIS MIKHELIEVICH
Format:	Patent
Sprache:	ger
Schlagworte:	ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS POWDER METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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creator	ESKIN, GEORGY IOSIFOVICH SUKHOLINSKY-MESTECHKIN, SERGEI LEONIDO SHAPIRO, BORIS MIKHELIEVICH
description	The invention relates to a metallurgy of light alloys in particular to methods for ultrasonic treatment of melts in a production of shaped castings from hypereutectic silumins of a piston group. The method consists of a degasification and a following modification of the melt by introducing in it modification additives which contain phosphorus. After the modification, the ultrasonic treatment of a melt stream is being performed and accompanied by a developed cavitation in such a way that a volume of a cavitation field conforms to a total volume of the melt passing through the area of ultrasonic treatment. The ultrasonic treatment of every element of the melt stream is performed during 0.15 s to 1.2 s depending on the concentration of said modification additives which represent 0.01 to 0.06 % of the total mass of the melt. The inventive method is directed at increasing the fatigue strength of castings at high working temperatures.
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The method consists of a degasification and a following modification of the melt by introducing in it modification additives which contain phosphorus. After the modification, the ultrasonic treatment of a melt stream is being performed and accompanied by a developed cavitation in such a way that a volume of a cavitation field conforms to a total volume of the melt passing through the area of ultrasonic treatment. The ultrasonic treatment of every element of the melt stream is performed during 0.15 s to 1.2 s depending on the concentration of said modification additives which represent 0.01 to 0.06 % of the total mass of the melt. 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The method consists of a degasification and a following modification of the melt by introducing in it modification additives which contain phosphorus. After the modification, the ultrasonic treatment of a melt stream is being performed and accompanied by a developed cavitation in such a way that a volume of a cavitation field conforms to a total volume of the melt passing through the area of ultrasonic treatment. The ultrasonic treatment of every element of the melt stream is performed during 0.15 s to 1.2 s depending on the concentration of said modification additives which represent 0.01 to 0.06 % of the total mass of the melt. 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The method consists of a degasification and a following modification of the melt by introducing in it modification additives which contain phosphorus. After the modification, the ultrasonic treatment of a melt stream is being performed and accompanied by a developed cavitation in such a way that a volume of a cavitation field conforms to a total volume of the melt passing through the area of ultrasonic treatment. The ultrasonic treatment of every element of the melt stream is performed during 0.15 s to 1.2 s depending on the concentration of said modification additives which represent 0.01 to 0.06 % of the total mass of the melt. The inventive method is directed at increasing the fatigue strength of castings at high working temperatures.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record>
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subjects	ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS POWDER METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
title	VERFAHREN ZUR ULTRASCHALLBEHANDLUNG EINER ÜBEREUTEKTISCHEN SILUMIN-SCHMELZE
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