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1 概况旋转成型的钢塑聚乙烯耐蚀复合容器、管道及管件,是一种新型的耐腐蚀设备.它采用进口的高性能线性低密度聚乙烯树脂(LLDPE)为主要原料,选用合理的耐蚀复合防护层配方、成型温度和耐蚀层厚度,使用先进的旋转成型(即滚塑成型)工艺.对大型容器和管道的耐蚀层内还采用了我国发明的龟甲网专利新技术,对耐蚀层实施三维空间一次成型,耐蚀层厚度为4毫米.因此,该类耐蚀产品的可设计性强,整体性能好,钢塑的结合力高,耐蚀性能、抗冲击性能和耐磨性能好,使用寿命长.采用龟甲网技术旋转成型的复合制品还可在负压的条件下应用.当前,旋转成型的钢衬聚乙烯耐蚀复合容器的管件,已在我国化工、石油、冶炼、制药、轻工、纺织、石油化工、精细化工等行业100余家企业的腐蚀防护领域中使用,应用情况良好,可取代耐蚀合金、镍铬不锈钢、橡胶衬里、聚氯乙烯衬里、钢塑冷衬复合管道等耐产品,具有较好的社会效益和经济效益.
1 Overview Rotating steel-plastic polyethylene corrosion-resistant composite containers, pipes and fittings, is a new type of corrosion-resistant equipment. It uses imported high-performance linear low density polyethylene resin (LLDPE) as the main raw material, the selection of reasonable resistance Corrosion composite layer formula, molding temperature and corrosion-resistant layer thickness, the use of advanced rotational molding (ie, rotational molding) process.For large vessels and pipe corrosion layer also used in our country invented new technology turtle net, Corrosion-resistant layer of a three-dimensional space to implement a molding, corrosion-resistant layer thickness of 4 mm.Therefore, the design of such corrosion-resistant products, the overall performance is good, high adhesion steel, corrosion resistance, impact resistance and resistance Grinding performance, long service life. The use of tortoise shell mesh technology rotary molding composite products can also be applied under negative pressure conditions.Currently, the rotation of steel lining polyethylene corrosion composite pipe fittings, in China’s chemical, petroleum, Smelting, pharmaceutical, light industry, textile, petrochemical, fine chemical industries more than 100 companies in the field of corrosion protection, good application, can replace the corrosion resistant alloy, nickel-chromium stainless steel, rubber lining, poly chloride Ethylene lining, plastic-lined composite pipe and other cold-resistant products, with good social and economic benefits.