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Steel sleeve steel composite insulation steel pipe
钢套钢复合保温钢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 thermal insulation structure of steel-jacketed composite thermal insulation steel pipe can be divided into two categories:
1、内滑动式引：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. Inside sliding guide: Insulation structure is composed of working steel pipe, aluminium silicate, drag reduction layer, micro-porous calcium silicate,  gaokaot.75ix.com   cehuit.75ix.com    hualangt.75ix.com    jiaxiaot.75ix.com insulation layer, stainless steel fastening strip, aluminium foil reflective layer, polyurethane insulation layer, coated steel pipe and external anti-corrosion layer. The inner sliding heat preservation steel pipe is composed of steel pipe conveying medium + composite silicate or micro-porous calcium silicate + rigid polyurethane foam plastic + coated steel pipe + FRP shell anticorrosive protective layer structure. All kinds of pipe joint insulation treatment technology is mature and reliable.