论赤道截面是钢球最危险的应力截面

Discussion on Equatortal section to be the Most Dangerous stress section of Ball

阐明了钢球最危险的应力截面是赤道截面的观点，指出造成赤道截面是最危险应力截面的原因是钢球环带区所固有的疏松组织，并分析了钢球环带区产生疏松组织的原因，得出了十分明确的结论。附图４ 幅，表３ 个，参考文献９ 篇。

The viewpoint is clarified that the most dangerous stress section of ball is equatorial section. It is indicated that causing equatorial section to be the most dangerous stress section is the porous structure which is inherent in the ball annulus. The reason of ball annulus producing porous structure is analyzed, and a very clear and definite conclusion is obtained.