钢套钢复合
Steel clad steel
钢套钢复合保温管保温结构依据滑动方式不同可分为两大类：
According to the different sliding modes, the insulation structure of steel clad steel insulation pipe can be divided into two categories
1、内滑动式：保温结构由工作钢管、硅酸铝、减阻层、微孔硅酸钙、隔热层、不锈钢紧固钢带、铝箔反射层、聚氨酯保温层、外套钢管、外防腐层组成。内滑动型保温钢管是由输送介质的钢管+复合硅酸盐或微孔硅酸钙+硬质聚氨酯泡沫塑料+外套钢管+玻璃钢壳防腐保护层结构构成。各种管件节点保温处理技术成熟，质量可靠。
1. Internal sliding type: the insulation structure is composed of working steel pipe, aluminum silicate, drag reducing layer, microporous calcium silicate, thermal insulation layer, stainless steel fastening steel strip, aluminum foil reflective layer, polyurethane insulation layer, outer steel pipe and external anti-corrosion coating. The inner sliding type heat preservation steel pipe is composed of a pipe conveying medium, a composite silicate or a microporous calcium silicate, a rigid polyurethane foam plastic, an outer steel pipe and a FRP shell anticorrosive protective layer. The heat preservation technology of various pipe joints is mature and the quality is reliable.
2、外滑动式：保温结构由工作钢管、玻璃棉保温隔热层、铝箔反射层、不锈钢紧固钢带、滑动导向支架、空气保温层、外护钢管、外防腐层组成。
2. External sliding type: the insulation structure is composed of working steel pipe, glass wool thermal insulation layer, aluminum foil reflective layer, stainless steel fastening steel strip, sliding guide bracket, air insulation layer, external steel pipe and external anti-corrosion coating.