聚乙烯夾克管
聚乙烯外套管采用高密度聚乙烯材料制成,具有*的機(jī)械強(qiáng)度和優(yōu)良的耐腐蝕性能,可以保護(hù)管材在運(yùn)輸、安裝及使用過(guò)程中避免因外界因素而造成的破壞。
制造外套管應(yīng)添加抗氧劑、紫外線穩(wěn)定劑和碳黑等。
生產(chǎn)工藝 1、上料 2、擠出 3、模具 4、冷卻 5、牽引 6、內(nèi)表面電暈處理 7、切割 8、檢驗(yàn) 9、成品 高密度聚乙烯外護(hù)管性能指標(biāo) 項(xiàng)目 | 測(cè)試方法 | 指標(biāo) | 拉伸屈服強(qiáng)度 | GB/T8004.2 | ≥19MPa | 斷裂伸長(zhǎng)率 | GB/T8004.2 | ≥350% | 密度 | GB/T1033 | ≥940Kg/m | 熔體流動(dòng)速率 | GB/T3682 | 0.5g/10min | 縱向回縮率 | GB/T6671.2 | ≤3% | 長(zhǎng)期機(jī)械性能 | GB/T6111 | >1500h | 熱穩(wěn)定性 | GB/T7391 | >20min | 碳黑含量 | GB/T3021 | 2.5±0.5% | 電暈效果 | DY試劑 | ≥50DYn/cm | 高密度聚乙烯外護(hù)管規(guī)格表 外徑mm | 標(biāo) 準(zhǔn) 型 | 薄壁型 | 對(duì)應(yīng)鋼管外徑mm | 對(duì)應(yīng)保溫層厚度mm | 對(duì)應(yīng)套袖mm | | 壁厚mm | 重量Kg | 允許偏差mm | 壁厚mm | 重量Kg | 允許偏差mm | | 92 | 2.5 | 0.675 | ±0.23 | 2.0 | 0.543 | ±0.2 | 27 34 | 30 27 | 110 | 100 | 2.5 | 0.735 | ±0.23 | 2.0 | 0.591 | ±0.2 | 34 | 31 | 110 | 110 | 2.5 | 0.811 | ±0.23 | 2.0 | 0.651 | ±0.2 | 48 | 29 | 121 | 121 | 2.5 | 0.893 | ±0.23 | 2.0 | 0.718 | ±0.2 | 57 | 30 | 125 | 125 | 2.5 | 0.924 | ±0.23 | 2.0 | 0.742 | ±0.2 | 57 60 | 31 30 | 133 | 133 | 2.5 | 0.984 | ±0.23 | 2.0 | 0.790 | ±0.2 | 57 60 | 36 34 | 142 | 142 | 3 | 1.258 | ±0.25 | 2.0 | 0.844 | ±0.2 | 76 | 31 | 155 | 150 | 3 | 1.330 | ±0.25 | 2.0 | 0.893 | ±0.2 | 76 | 35 | 165 | 155 | 3 | 1.375 | ±0.25 | 2.0 | 0.923 | ±0.2 | 89 | 31 | 165 | 161 | 3 | 1.430 | ±0.25 | 2.0 | 0.959 | ±0.2 | 89 | 34 | 175 | 165 | 3 | 1.466 | ±0.25 | 2.0 | 0.983 | ±0.2 | 89 | 36 | 175 | 171 | 3 | 1.520 | ±0.25 | 2.0 | 1.019 | ±0.2 | 89 | 39 | 180 | 175 | 3 | 1.556 | ±0.25 | 2.0 | 1.044 | ±0.2 | 108 | 31 | 180 | 180 | 3 | 1.601 | ±0.25 | 2.0 | 1.074 | ±0.2 | 108 114 | 33 31 | 188 | 188 | 3 | 1.674 | ±0.25 | 2.0 | 1.122 | ±0.2 | 114 | 35 | 200 | 194 | 3 | 1.728 | ±0.25 | 2.0 | 1.158 | ±0.2 | 108 | 41 | 200 | 200 | 3.2 | 1.899 | ±0.26 | 2.2 | 1.312 | ±0.21 | 133 | 31 | 211 | 208 | 3.2 | 1.977 | ±0.26 | 2.2 | 1.365 | ±0.21 | 133 | 35 | 219 | 211 | 3.2 | 2.005 | ±0.26 | 2.2 | 1.385 | ±0.21 | 133 | 31 | 219 | 219 | 3.2 | 2.083 | ±0.26 | 2.2 | 1.438 | ±0.21 | 133 | 40.8 | 225 | 225 | 3.5 | 2.338 | ±0.28 | 2.5 | 1.678 | ±0.23 | 140 159 | 40 30 | 238 | 230 | 3.5 | 2.391 | ±0.28 | 2.5 | 1.715 | ±0.23 | 165 | 30 | 238 | 238 | 3.5 | 2.475 | ±0.28 | 2.5 | 1.776 | ±0.23 | 159 | 37 | 245 | 245 | 3.5 | 2.549 | ±0.28 | 2.5 | 1.828 | ±0.23 | 159 | 39 | 265 | 250 | 3.9 | 2.894 | ±0.30 | 2.5 | 1.866 | ±0.23 | 159 | 43 | 265 | 265 | 3.9 | 3.071 | ±0.30 | 2.5 | 1.979 | ±0.23 | 165 | 47 | 285 | 280 | 4.4 | 3.657 | ±0.32 | 3.0 | 2.506 | ±0.25 | 165 | 53 | 290 | 285 | 4.4 | 3.724 | ±0.32 | 3.0 | 2.551 | ±0.25 | 219 | 30 | 290 | 290 | 4.4 | 3.790 | ±0.32 | 3.0 | 2.597 | ±0.25 | 219 | 32 | 302 | 300 | 4.4 | 3.923 | ±0.32 | 3.0 | 2.687 | ±0.25 | 219 | 37 | 310 | 305 | 4.4 | 3.989 | ±0.32 | 3.0 | 2.732 | ±0.25 | 219 | 40 | 310 | 310 | 4.4 | 4.055 | ±0.32 | 3.0 | 2.778 | ±0.25 | 219 | 42 | 327 | 315 | 4.9 | 4.583 | ±0.35 | 3.5 | 3.288 | ±0.27 | 219 | 44 | 327 | 325 | 4.9 | 4.730 | ±0.35 | 3.5 | 3.394 | ±0.27 | 219 | 49.5 | 335 | 327 | 4.9 | 4.760 | ±0.35 | 3.5 | 3.415 | ±0.27 | 219 | 50 | 345 | 335 | 4.9 | 4.878 | ±0.35 | 3.5 | 3.499 | ±0.27 | 219 | 54 | 345 | 345 | 4.9 | 5.026 | ±0.35 | 3.5 | 3.605 | ±0.27 | 273 | 32 | 365 | 355 | 4.9 | 5.174 | ±0.35 | 3.5 | 3.710 | ±0.27 | 273 | 37 | 365 | 361 | 5.6 | 6.002 | ±0.38 | 4.0 | 4.307 | ±0.3 | 273 | 40 | 385 | 365 | 5.6 | 6.070 | ±0.38 | 4.0 | 4.355 | ±0.3 | 273 | 42 | 385 | 381 | 5.6 | 6.340 | ±0.38 | 4.0 | 4.548 | ±0.3 | 273 | 40 | 440 | 385 | 5.6 | 6.408 | ±0.38 | 4.0 | 1.596 | ±0.3 | 273 | 52 | 440 | 400 | 6.3 | 7.480 | ±0.57 | 5.0 | 5.956 | ±0.47 | 325 | 32 | 417 | 407 | 6.3 | 7.613 | ±0.57 | 5.0 | 6.062 | ±0.47 | 325 | 35 | 420 | 417 | 6.3 | 7.803 | ±0.57 | 5.0 | 6.213 | ±0.47 | 325 | 41 | 439 | 420 | 7.0 | 8.719 | ±0.63 | 5.0 | 6.258 | ±0.47 | 325 | 42 | 439 | 433 | 7.0 | 8.994 | ±0.63 | 5.0 | 6.454 | ±0.47 | 325 | 49 | 450 | 439 | 7.0 | 9.120 | ±0.63 | 5.0 | 6.544 | ±0.47 | 325 | 52 | 450 | 450 | 7.0 | 9.352 | ±0.63 | 5.0 | 6.710 | ±0.47 | 377 | 31 | 464 | 464 | 7.0 | 9.648 | ±0.63 | 5.0 | 6.922 | ±0.47 | 377 | 31 | 470 | 470 | 7.0 | 9.775 | ±0.63 | 5.0 | 7.012 | ±0.47 | 377 | 41 | 500 | 475 | 7.0 | 9.880 | ±0.63 | 5.0 | 7.087 | ±0.47 | 377 | 44 | 500 | 485 | 7.0 | 10.091 | ±0.63 | 5.0 | 7.238 | ±0.47 | 377 | 40 | 500 | 490 | 7.0 | 10.197 | ±0.63 | 5.0 | 7.314 | ±0.47 | 377 | 51 | 500 | 500 | 7.8 | 11.579 | ±0.69 | 6.0 | 7.939 | ±0.55 | 377 | 55 | 520 | 520 | 7.8 | 12.049 | ±0.69 | 6.0 | 9.301 | ±0.55 | 426 | 41 | 525 | 525 | 7.8 | 12.166 | ±0.69 | 6.0 | 9.392 | ±0.55 | 426 | 43 | 535 | 530 | 7.8 | 12.284 | ±0.69 | 6.0 | 9.482 | ±0.55 | 426 | 46 | 550 | 535 | 7.8 | 12.402 | ±0.69 | 6.0 | 9.572 | ±0.55 | 426 | 48 | 550 | 550 | 8.8 | 14.363 | ±0.76 | 6.5 | 10.655 | ±0.58 | 426 | 55 | 568 | 568 | 8.8 | 14.841 | ±0.76 | 6.5 | 11.077 | ±0.58 | 478 | 40 | 600 | 580 | 8.8 | 15.195 | ±0.76 | 6.5 | 11.243 | ±0.58 | 478 | 44 | 600 | 590 | 8.8 | 15.425 | ±0.76 | 6.5 | 11.439 | ±0.58 | 478 | 50 | 630 | 600 | 8.8 | 15.690 | ±0.76 | 6.5 | 11.635 | ±0.58 | 478 | 54 | 655 | 622 | 8.8 | 16.274 | ±0.76 | 6.5 | 12.066 | ±0.58 | 478 | 65.5 | 655 | 630 | 9.8 | 18.331 | ±0.84 | 8.0 | 15.077 | ±0.70 | 529 | 42 | 655 | 641 | 9.8 | 18.656 | ±0.84 | 8.0 | 15.273 | ±0.70 | 529 | 48 | 655 | 655 | 9.8 | 19.069 | ±0.84 | 8.0 | 15.610 | ±0.70 | 529 | 55 | 685 | 685 | 9.8 | 19.965 | ±0.84 | 8.0 | 16.334 | ±0.70 | 529 | 70 | 710 | 700 | 9.8 | 20.695 | ±0.84 | 8.0 | 16.937 | ±0.70 | 529 | 80 | 733 | 733 | 11.1 | 24.167 | ±0.93 | 8.0 | 17.492 | ±0.70 | 630 | 43 | 760 | 740 | 11.1 | 24.401 | ±0.93 | 8.0 | 17.661 | ±0.70 | 630 | 47 | 760 | 746 | 11.1 | 24.602 | ±0.93 | 8.0 | 17.806 | ±0.70 | 630 | 50 | 760 | 750 | 11.1 | 24.736 | ±0.93 | 8.0 | 17.903 | ±0.70 | 630 | 52 | 777 | 760 | 11.1 | 25.071 | ±0.93 | 8.0 | 18.144 | ±0.70 | 630 | 57 | 777 | 777 | 11.1 | 25.640 | ±0.93 | 8.0 | 18.554 | ±0.70 | 630 | 65.5 | 795 | 795 | 11.1 | 26.212 | ±0.93 | 8.0 | 18.988 | ±0.70 | 630 | 74 | 830 | 830 | 11.1 | 27.414 | ±0.93 | 8.0 | 19.833 | ±0.70 | 720 | 47 | 850 | 850 | 12 | 30.328 | ±1.0 | 9.0 | 22.828 | ±0.77 | 720 | 56 | 885 | 885 | 12 | 31.595 | ±1.0 | 9.0 | 23.77 | ±0.77 | 720 | 73 | - | 911 | 12 | 33.730 | ±1.0 | 9.0 | 25.379 | ±0.77 | 820 | 53 | 988 | 988 | 12 | 35.232 | ±1.0 | 9.0 | 26.573 | ±0.77 | 820 | 75 | 1054 | 1044 | 14 | 43.490 | ±1.15 | 10 | 31.185 | ±0.85 | 920 | 48 | - | 1054 | 14 | 43.912 | ±1.15 | 10 | 31.486 | ±0.85 | 920 | 57 | 1095 | 1095 | 14 | 45.643 | ±1.15 | 10 | 32.732 | ±0.85 | 920 | 77 | - | 1155 | 14 | 48.477 | ±1.15 | 10 | 34.532 | ±0.85 | 1020 | 57 | 1210 | 1192 | 14 | 49.739 | ±1.15 | 10 | 35.648 | ±0.85 | 1020 | 72 | - | 1210 | 14 | 50.499 | ±1.15 | 10 | 36.191 | ±0.85 | 1020 | 95 | - | 1380 | 14 | 57.677 | ±1.15 | 10 | 41.318 | ±0.85 | 1220 | 70 | 1430 | 、說(shuō) 明 A.聚乙烯管易老化,如露天存放宜用篷布等物遮蓋,堆放處應(yīng)遠(yuǎn)離高熱源和火源,制成保溫管后,禁止暴曬、驟冷,否則聚乙烯管易開(kāi)裂,影響產(chǎn)品性能和使用壽命。 B.運(yùn)輸和穿管過(guò)程中,應(yīng)避免野蠻裝卸,掛鉤過(guò)細(xì)、過(guò)硬、用力過(guò)猛,否則易造成聚乙烯管摔壞、劃傷或撕裂。 C.管材壁厚可調(diào)整,壁厚、顏色可按用戶要求生產(chǎn),因管材壁厚不同,保溫層厚度為約數(shù),應(yīng)按實(shí)際厚度計(jì)算。 D.與管材配套的支架、塑料塞、兩頭法蘭盤,焊條、焊槍、熱縮帶等齊全。 E.表中的允許偏差是按CJ/114-2000行業(yè)標(biāo)準(zhǔn)制定的。 計(jì)算公式為:外徑≤400mm時(shí),上下偏差之和=0.1×公稱壁厚+0.2 外徑≥400mm時(shí),上下偏差之和=0.15×公稱壁厚+0.2 |