Heat treatment method of raising the hardness of structural alloy steel

Application Number: 00110769
Application Date: 2000.08.09
Publication Number: 1337473
Publication Date: 2002.02.27
Priority Information:
International: C21D1/25
Applicant(s) Name: Inst. of Mestals, Academia Sinica
Inventor(s) Name: Yang Ke;Zhang Haifeng;Wang Aimin
Patent Agency Code: 21002
Patent Agent: zhang chen
Abstract The heat-processing method for raising high-alloy constructional steel hardness is characterized by that firstly, pretreating steel structural component, then thermal refining under the condition of single-way near static high pressure, pressure range is 1.5-6.0 GPa, i.e. heating steel component under the above-mentioned high pressure to normal hardening temp., heating-insulating according to normal time, then water-quenching to room temp., then heating steel component to normal tempering temperature under the above-mentioned high pressure, heating-insulating according to normal time, and cooling to room temperature. Said invention can greatly raise the hardness of high alloy constructional steel component.