WAESSRIGES ABSCHRECKMEDIUM FUER METALLE UND EISENLEGIERUNGEN

An aqueous quenching agent for ferrous metals and alloys comprises from 0.1 to 30% by weight of polyalkylene glycol ether with a molecular weight of from 4,000 to 30,000, and from 0.5 to 15% of an alkanolamine salt of cinnamic acid or an oxo acid having from 7 to 13 carbon atoms as anti-corrosion ad...

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Bibliographische Detailangaben
Hauptverfasser:	OLIVIER, JAQUES, 78760 JOUARS-PONTCHARTRAIN, FR, GUERIT, PIERRE, 73003 CHAMBERY, FR, DU MANOIR, PIERRE, 73160 COGNIN, FR
Format:	Patent
Sprache:	ger
Schlagworte:	CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
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Beschreibung
Zusammenfassung:	An aqueous quenching agent for ferrous metals and alloys comprises from 0.1 to 30% by weight of polyalkylene glycol ether with a molecular weight of from 4,000 to 30,000, and from 0.5 to 15% of an alkanolamine salt of cinnamic acid or an oxo acid having from 7 to 13 carbon atoms as anti-corrosion additive, the balance being water. This quenching agent permits the calefaction phase to be reduced in length, enables the maximum rate of cooling to be at the beginning of the nuclear boiling phase, and permits of very rapid redissolution of the polyalkylene glycol deposited on the quenched metal.