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US 2009/0288743 A1Published application
Polymeric quenchant, manufacture thereof, and method for quenching steel
AssigneesIndustrial Technology Research Institute, Gelie Co., Ltd.
InventorsGeorge Ho, Li-Kuei Lin, Wen-Faa Kuo
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Abstract
A polymeric quenchant. The polymeric quenchant comprises an inorganic nanoparticle, a water-soluble polymer, and water, wherein a weight ratio of the inorganic nanoparticle, water-soluble polymer and water is about 0.05-5:1-5:100. The cooling rate of steel during a quenching process can be adjusted by regulating the components and ratios of the adjusted by regulating the components and ratios of the polymeric quenchant to achieve desirable steel properties.
Claims5
A method for quenching steel, comprising:
- providing a steel;
- heating the steel;
- and
- quenching the steel using a polymeric quenchant, wherein the steel has a temperature of maximum cooling rate exceeding 500° C., and a cooling rate at 300° C. less than 30° C./sec during the quenching.
1 more element
Dependencies are inferred from the claim text.