高密度聚乙烯外套管聚乙烯外套管采用高密度聚乙烯材料制成，具有极高的机械强度和优良的耐腐蚀性能，可以保护管材在运输、安装及使用过程中避免因外界因素而造成的破坏。制造外套管应添加抗氧剂、紫外线稳定剂和碳黑等。公司拥有厂房面积6000平方米，厂区配有24m龙门吊两台，车间配有20m行车两台，HDPE夹克管生产线十条，具备年产HDPE夹克管800Km、预制聚氨酯直埋管400Km、玻璃钢聚氨酯直埋管300Km、预制钢套蒸汽直埋管100Km的生产力。生产工艺1、上料2、挤出3、模具4、冷却5、牵引6、内表面电晕处理7、切割8、检验9、成品高密度聚乙烯外护管性能指标项目测试方法指标拉伸屈服强度GB/T8004.2≥19MPa断裂伸长率GB/T8004.2≥350%密度GB/T1033≥940Kg/m3熔体流动速率GB/T36820.5g/10min纵向回缩率GB/T6671.2≤3%长期机械性能GB/T6111>1500h热稳定性GB/T7391>20min碳黑含量GB/T30212.5±0.5%电晕效果DY试剂≥50DYn/cm高密度聚乙烯外护管规格表外径mm标准型薄壁型对应钢管外径mm对应保温层厚度mm对应套袖mm壁厚mm重量Kg允许偏差mm壁厚mm重量Kg允许偏差mm922.50.675±0.232.00.543±0.2273430271101002.50.735±0.232.00.591±0.234311101102.50.811±0.232.00.651±0.248291211212.50.893±0.232.00.718±0.257301251252.50.924±0.232.00.742±0.2576031301331332.50.984±0.232.00.790±0.25760363414214231.258±0.252.00.844±0.2763115515031.330±0.252.00.893±0.2763516515531.375±0.252.00.923±0.2893116516131.430±0.252.00.959±0.2893417516531.466±0.252.00.983±0.2893617517131.520±0.252.01.019±0.2893918017531.556±0.252.01.044±0.21083118018031.601±0.252.01.074±0.2108114333118818831.674±0.252.01.122±0.21143520019431.728±0.252.01.158±0.2108412002003.21.899±0.262.21.312±0.21133312112083.21.977±0.262.21.365±0.21133352192113.22.005±0.262.21.385±0.21133312192193.22.083±0.262.21.438±0.2113340.82252253.52.338±0.282.51.678±0.2314015940302382303.52.391±0.282.51.715±0.23165302382383.52.475±0.282.51.776±0.23159372452453.52.549±0.282.51.828±0.23159392652503.92.894±0.302.51.866±0.23159432652653.93.071±0.302.51.979±0.23165472852804.43.657±0.323.02.506±0.25165532902854.43.724±0.323.02.551±0.25219302902904.43.790±0.323.02.597±0.25219323023004.43.923±0.323.02.687±0.25219373103054.43.989±0.323.02.732±0.25219403103104.44.055±0.323.02.778±0.25219423273154.94.583±0.353.53.288±0.27219443273254.94.730±0.353.53.394±0.2721949.53353274.94.760±0.353.53.415±0.27219503453354.94.878±0.353.53.499±0.27219543453454.95.026±0.353.53.605±0.27273323653554.95.174±0.353.53.710±0.27273373653615.66.002±0.384.04.307±0.3273403853655.66.070±0.384.04.355±0.3273423853815.66.340±0.384.04.548±0.3273404403855.66.408±0.384.01.596±0.3273524404006.37.480±0.575.05.956±0.47325324174076.37.613±0.575.06.062±0.47325354204176.37.803±0.575.06.213±0.47325414394207.08.719±0.635.06.258±0.47325424394337.08.994±0.635.06.454±0.47325494504397.09.120±0.635.06.544±0.47325524504507.09.352±0.635.06.710±0.47377314644647.09.648±0.635.06.922±0.47377314704707.09.775±0.635.07.012±0.47377415004757.09.880±0.635.07.087±0.47377445004857.010.091±0.635.07.238±0.47377405004907.010.197±0.635.07.314±0.47377515005007.811.579±0.696.07.939±0.55377555205207.812.049±0.696.09.301±0.55426415255257.812.166±0.696.09.392±0.55426435355307.812.284±0.696.09.482±0.55426465505357.812.402±0.696.09.572±0.55426485505508.814.363±0.766.510.655±0.58426555685688.814.841±0.766.511.077±0.58478406005808.815.195±0.766.511.243±0.58478446005908.815.425±0.766.511.439±0.58478506306008.815.690±0.766.511.635±0.58478546556228.816.274±0.766.512.066±0.5847865.56556309.818.331±0.848.015.077±0.70529426556419.818.656±0.848.015.273±0.70529486556559.819.069±0.848.015.610±0.70529556856859.819.965±0.848.016.334±0.70529707107009.820.695±0.848.016.937±0.705298073373311.124.167±0.938.017.492±0.706304376074011.124.401±0.938.017.661±0.706304776074611.124.602±0.938.017.806±0.706305076075011.124.736±0.938.017.903±0.706305277776011.125.071±0.938.018.144±0.706305777777711.125.640±0.938.018.554±0.7063065.579579511.126.212±0.938.018.988±0.706307483083011.127.414±0.938.019.833±0.70720478508501230.328±1.09.022.828±0.77720568858851231.595±1.09.023.77±0.7772073-9111233.730±1.09.025.379±0.77820539889881235.232±1.09.026.573±0.7782075105410441443.490±1.151031.185±0.8592048-10541443.912±1.151031.486±0.8592057109510951445.643±1.151032.732±0.8592077-11551448.477±1.151034.532±0.85102057121011921449.739±1.151035.648±0.85102072-12101450.499±1.151036.191±0.85102095-13801457.677±1.151041.318±0.851220701430)