Method of repairing a peel strip on a pipe heat shrink band
By using epoxy resin composition and adhesive in combination, the problem of poor repair effect at the peeling strip position of heat shrink tape is solved, achieving high strength, low cost and fast repair effect, extending the service life of pipeline and maintaining the performance and aesthetics of anti-corrosion layer.
CN122407923APending Publication Date: 2026-07-17PIPECHINA SOUTH CHINA CO +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- PIPECHINA SOUTH CHINA CO
- Filing Date
- 2026-04-23
- Publication Date
- 2026-07-17
Smart Images
Figure CN122407923A_ABST
Abstract
本发明涉及一种管道热收缩带上剥离条的修复方法，所述修复方法包括如下步骤：对凹坑和剥离条进行清洁处理，得到清洁后凹坑和清洁后剥离条；在所述清洁后凹坑中涂覆环氧树脂组合物，待环氧树脂组合物表干后，对所述清洁后剥离条进行烘烤处理，待清洁后剥离条内侧的热熔胶初步熔化后，在剥离条内部涂覆胶黏剂，然后立即对清洁后剥离条与凹坑进行压合；所述胶黏剂包括丙烯酸酯改性聚合物和活性组分；在剥离条的四周涂覆胶黏剂，形成修补层，待胶黏剂表干后，在剥离条的外围安装一条与热收缩带规格相同的第二热收缩带。本发明通过环氧树脂组合物和胶黏剂的配合使用，使得修复后粘接强度高。
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