The utility model discloses a corrosion-resistant coated plastic composite steel pipe. The technical scheme essentially comprises a steel pipe body covered with an inner coating layer and an outer coating layer. A high elastic rubber buffer layer is arranged between the steel pipe body and the inner coating layer, and between the steel pipe body and the outer coating layer, and the high elastic rubber buffer layer is described. The thickness of the buffer layer is 0.3-0.6 mm, and the inner coating and the outer coating are both wear-resistant and corrosion-resistant coatings. The utility model has the advantage that the inner coating and the outer coating are set as wear-resistant and corrosion-resistant coatings, which can play a good protective role on the steel tube body, and between the steel tube body and the inner coating, and between the steel tube body and the outer coating. Setting high elastic rubber buffer layer can make the steel pipe and wear-resistant anticorrosive layer have different deformation and play a role of tensile buffer, thus avoiding the wear-resistant anticorrosive layer rupture.
【技术实现步骤摘要】
耐腐蚀涂塑复合钢管
本技术涉及一种涂塑复合钢管,更具体地说,它涉及一种耐腐蚀涂塑复合钢管。
技术介绍
环氧树脂涂料广泛应用于对钢管的腐蚀防护,但由于环氧树脂是三维网状结构,存在孔隙,使其抗渗透性差,外界腐蚀粒子容易通过涂层的孔隙达到金属基体表面,发生电化学反应,从而使其防腐蚀性能下降,现有的环氧树脂涂塑钢管的耐腐蚀性能不够理想,使用寿命短。目前,申请公布号为CN106010102A的中国专利公开了一种使用寿命长涂塑钢管,它包括钢管和涂覆在所述钢管表面的塑料防腐层,塑料防腐层的原料按重量份包括:酚醛环氧树脂32~40份,双酚A型环氧树脂62~68份,复合稀土盐12~14份,纳米二氧化硅38~42份,沸石粉1~2份,流平剂1.8~2.2份,颜料3~5份,酚类固化剂2~3份,助剂4~6份。本专利技术提出的使用寿命长涂塑钢管,具有优异的耐腐蚀性能,使用寿命长,而且耐热性能优异,但由于该组分的塑料防腐层致密性较好,使得其形变空间较小,在低温和高温环境下,由于其与钢管本体的形变量不同,发生热胀冷缩时,塑料防腐层与钢管本体的形变量不同会导致塑料防腐层发生破裂,影响涂塑复合钢管的 ...
【技术保护点】
1.一种耐腐蚀涂塑复合钢管,包括钢管本体,其特征在于:所述钢管本体上包覆有内涂覆层和外涂覆层,所述钢管本体与内涂覆层之间、钢管本体与外涂覆层之间均设有高弹态橡胶缓冲层,所述高弹态橡胶缓冲层的厚度为0.3~0.6mm,所述内涂覆层和外涂覆层均为耐磨防腐层。
【技术特征摘要】
1.一种耐腐蚀涂塑复合钢管,包括钢管本体,其特征在于:所述钢管本体上包覆有内涂覆层和外涂覆层,所述钢管本体与内涂覆层之间、钢管本体与外涂覆层之间均设有高弹态橡胶缓冲层,所述高弹态橡胶缓冲层的厚度为0.3~0.6mm,所述内涂覆层和外涂覆层均为耐磨防腐层。2.根据权利要求1所述的耐腐蚀涂塑复合钢管,其特征在于:所述耐磨防腐层为酚醛环氧...
【专利技术属性】
技术研发人员:陈慧,
申请(专利权)人:云南固特邦钢塑管道制造有限公司,
类型:新型
国别省市:云南,53
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