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通过对管道覆盖层机械性能(抗弯曲性、抗冲击强度、附着力、耐磨性)的全面介绍,分析影响各种性能的主要原因,提出了抗弯曲性能是覆盖层被延伸时抗机械损伤性能的尺度,它决定涂敷管现场弯曲限度和弯头的数量。覆盖层的抗冲击强度影响管子在装卸、运输和安装时可能受到的损伤程度。覆盖层的抗弯曲性能和抗冲击强度是管道建设中的关键因素,直接影响建设费用和工期。
By comprehensively introducing the mechanical properties (bending resistance, impact strength, adhesion and wear resistance) of pipe coating, the main factors that affect various properties are analyzed. It is proposed that the bending resistance is the resistance to mechanical damage when the coating is extended The scale of performance, which determines the bending limit of the coated pipe and the number of elbows. The impact strength of the cover affects the degree of damage the pipe may be subjected to during handling, transport and installation. The bending resistance and impact resistance of the covering layer are the key factors in the pipeline construction, which directly affect the construction cost and construction period.