石油钻具稳定器是钻井常用工具,要求有很高的安全可靠性。为保证安全可靠,综合力学性能(抗拉强度≥965 MPa,屈服强度≥758 MPa,断面收缩率≥40%,断后伸长率≥13%,冲击吸收能量≥54 J[1])要求很高。23、26、36 in等大型稳定器(以下简称大型稳定器)其体积质量较大,见图1,给热处理工作造成很大的困难。 Oil rig stabilizers are commonly used tools for drilling and require high safety and reliability. In order to ensure safety and reliability, comprehensive mechanical properties (tensile strength ≥965 MPa, yield strength ≥758 MPa, reduction of area ≥40%, elongation after fracture ≥13%, impact absorption energy ≥54 J [1]) are very demanding . 23,26,36 in and other large stabilizers (hereinafter referred to as large-scale stabilizer) the volume of the larger, shown in Figure 1, to the heat treatment caused great difficulties.