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US 10,421,924 B2Granted
Water-based coolant
AssigneeIdemitsu Kosan Co., Ltd.
InventorsMayu Hasegawa, Masahisa Goto, Katsumi Ichitani, Kenro Noguchi
Life of this patent
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Abstract
Disclosed herein is a method of using a water-based coolant for quenching or cutting a metal material. The water-based coolant is formed of: water; at least one inorganic acid salt selected from the group consisting of a carbonate, a hydrogen carbonate, a sesquicarbonate, a phosphate, a borate, a molybdate and a tungstate; a metal corrosion inhibitor; and optionally at least one of a bactericide, a water-soluble rust inhibitor, an antioxidant and a detergent dispersant.
Claims11
A method, comprising quenching or cutting a metal material using a water-based coolant consisting of:
- water;
- at least one inorganic acid salt selected from the group consisting of a carbonate, a hydrogen carbonate, a sesquicarbonate, a phosphate, a borate, a molybdate and a tungstate;
- at least one metal corrosion inhibitor selected from the group consisting of a benzotriazole compound, a benzimidazole compound, a benzothiazole compound and a benzothiadiazole compound;
- and optionally
- at least one of a bactericide and an antioxidant.
2 more elements
Dependencies are inferred from the claim text.