Abstract: Reasons of film breakage are analyzed from the film section of transverse direction orientation (TDO) inlet.The clipping film are realized perfectly through improving close-clip structure.

• 摘 要 ：从横拉入口处膜片状态着手分析TDO断膜原因，通过改进闭夹器结构以实现链夹在理想状态下夹膜。