Water-based quenching liquid composition and method for manufacturing metal material using same
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United States of America Patent
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Nov 23, 2021
Grant Date -
Sep 26, 2019
app pub date -
Dec 22, 2017
filing date -
Dec 27, 2016
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Abstract
Provided is a water-based quenching liquid composition which is slow in a cooling rate and is able to suppress quenching crack. The water-based quenching liquid composition is one containing water (A), a linear polyalkylene glycol compound (B), and a branched polyhydric alcohol alkylene oxide adduct (C), wherein the linear polyalkylene glycol compound (B) has a mass average molecular weight of 10,000 or more, and the branched polyhydric alcohol alkylene oxide adduct (C) is a mixed adduct of alkylene oxides having 2 to 3 carbon atoms and has a mass average molecular weight of 10,000 or more.
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