环氧基粘结剂对CT扫描仪旋转轴承系统稳定性的影响

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关键词：环氧树脂；粘接剂;CT扫描仪；旋转轴承；固定；稳定性；转动精度

中图分类号： TQ433.4+37 文献标志码：A 文章编号：1001-5922（2026）1-0085-04

Abstract：To investigate the efect of epoxyresin binders on the fixing stability of rotating bearing systems in CT scanners，epoxyresin-based binders were used and divided into groups with massratios of epoxy resin （EP） to carboxyl-terminated nitrile butadiene rubber （CTBN）of 4：1，5：1，and 6：1.The shear strength，peel strength，and tensile strength of the binders inthe three groups were analyzed.Rotating bearing components of CT scanners were selected，and epoxyresin-based binders wereused to replace traditional bolt fixation，with theirrotationalaccuracyand vibrationcharacteristicsanalyzed.The results showed that when theratio was 5：1，the shear strength，peel strength， and tensile strengths for samples 1 and2 of the epoxy resin-based binder were24.17 MPa，13.76 kg/（25 mm），1， 075N，and 1，1O7 N，respectively，which were significantly higher than those of the 4：1 and 6：1 ratios.When the （204号 epoxy resin-based binder was used for bonding，the rotational angle control error of the CT scanner was below 0.5∘ .The actual vibration frequency response values of the rotating bearings obtained were close to the experimental data.The epoxy resin-based binder exhibited excellnt bonding performance and could improve thefixing stability of rotating bearings in CT scanners.

Key Words：epoxy resin ; adhesive ; CT scanner ;rotating bearing;fixation ;stability ;rotational accuracy

环氧树脂基粘结剂作为一种高性能结构胶粘剂，因其优异的力学性能、化学稳定性和耐久性，在医疗设备关键部件固定中展现出独特优势[1。（剩余6249字）