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由于要求高速度、高记录密度和全自动化等,希望电子计算机用磁带比以前有更高的可靠性。为得到长寿命的磁带,我们研究了由环境的温湿度和使用时的滑动等所引起的磁带磨损、物理变形、粘连现象、信号漏失与它们的材料之间的关系。从而弄清了相适应的材料条件。明确了在残留伸长方面,带基薄膜的拉伸程度是重要因素;在卷曲方面,涂层的热收缩性和背层厚度的平衡是重要因素。并且,从材料分析的结果搞清了粘连原因,同时,还提出了关于涂层粘连性的有效评价方法。对粘合剂,研究了柔软性,交链结构等对运行耐久性的影响。明确了由旋转磨擦环测得的动摩擦系数和由磁带装置所作的信号漏失试验之间的关系,结出了相适应的涂层强度。
Due to the demands for high speed, high recording density and full automation, it is hoped that electronic computer tapes will have higher reliability than ever before. In order to obtain a long-life tape, we studied the relationship between tape wear, physical deformation, blocking phenomenon, signal loss and their material caused by the temperature and humidity of the environment and the sliding at the time of use. To clarify the conditions of the material to adapt. It is clear that the degree of stretching of the base film is an important factor in residual elongation and that the balance between the heat shrinkability of the coating and the thickness of the back layer is an important factor in terms of curling. And, from the material analysis results to find out the cause of adhesion, but also proposed an effective evaluation of the adhesion of the coating. For adhesives, the effects of softness, cross-linking structure, etc. on run durability were investigated. The relationship between the dynamic friction coefficient measured by the rotating friction ring and the signal leakage test by the tape device is clarified, and the coating strength is obtained.