介绍了螺旋焊管成型器内压辊斜置小辊线接触辊型的设计方法（经验公式设计法）。
The article introduces the design methods of contact roller of internal press roller of forming machine of SSAW pipe mill(experience formula design).
结果表明，最大压应力轴向分布呈S形，原辊形会引起接触应力集中。
The calculated results indicate that the axial distributions of the maximum contact pressure have an "s" shape.
讨论了冷轧工作辊接触疲劳裂纹、剥落、夹杂物裂纹和磨损等失效形式。
The failure forms of cold work roll including contact fatigue crack, spalling, inclusion crack and wear are discussed.
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