如何提高农民工的城市融入水平特别是心理融入水平已成为亟需解决的重要议题。本研究使用2021年中国社会状况综合调查(CSS)数据资料,运用二元logistic回归模型分析了社会保险对农民工心理融入的影响。总的来说,社会保险获得情况越好,农民工心理融入水平越高。养老、医疗保险对农民工心理融入产生积极效应,而失业、工伤保险对于农民工心理融入产生负面影响,生育保险对于农民工心理融入不存在显著影响;不同性别、新老生代,社会保险获得情况对农民工心理融入的影响存在差异。因此,建议切实加强顶层设计,统一全国农民工社会保险制度,以有效增强社会保险对农民工心理融入的正向作用,促进农民工更好地融入城市。How to improve the urban integration level of migrant workers, especially their psychological integration level, has become an important issue that needs to be addressed urgently. This study uses data from the 2021 China Social Survey (CSS) to analyse the impact of social insurance on the psychological integration of migrant workers using a binary logistic regression model. In general, the better the access to social insurance, the higher the level of psychological integration of migrant workers;old-age pension and medical insurance have a positive effect on the psychological integration of migrant workers, while unemployment and work injury insurance have a negative effect on the psychological integration of migrant workers, and maternity insurance does not show a significant effect on the psychological integration of migrant workers;the impact of access to social insurance on the psychological integration of migrant workers varies by gender, and by new and old generations. Therefore, it is recommended that the top-level design be strengthened and the national social insurance system for rural migrant workers be unified, so as to effectively enhance the positive effect of social insurance on the psycho
In this work,fow behavior and dynamic recrystallization(DRX)mechanism of a low carbon martensitic stainless bearing steel,CSS-42L,were investigated using a thermomechanical simulator under the temperature and strain rate ranges of 900 to 1100℃ and 0.1 to 20 s^(−1),respectively.The Arrhenius-type constitutive equation was established based on the fow stress curves.Moreover,the peak stress decreased with the increase in deformation temperature and the decrease in strain rate.There were two DRX mechanisms during hot deformation of the current studied steel,the main one being discontinuous dynamic recrystallization mechanism,acting through grain boundary bulging and migration,and the auxiliary one being continuous dynamic recrystallization mechanism,working through the rotation of sub-grains.On the basis of microstructural characterizations,power dissipation maps and fow instability maps,the optimized hot deformation parameters for CSS-42L bearing steel were determined as 1050℃/0.1 s^(−1) and 1100℃/1 s^(−1).