高密度聚乙烯外套管
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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。
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/T3682 |
0.5g/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/T3021 |
2.5±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 |
108114 |
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 |
说 明
A.聚乙烯管易老化，如露天存放宜用篷布等物遮盖，堆放处应远离高热源和火源，制成保温管后，禁止暴晒、骤冷，否则聚乙烯管易开裂，影响产品性能和使用寿命。
B.运输和穿管过程中，应避免野蛮装卸，挂钩过细、过硬、用力过猛，否则易造成聚乙烯管摔坏、划伤或撕裂。
C.管材壁厚可调整，壁厚、颜色可按用户要求生产，因管材壁厚不同，保温层厚度为约数，应按实际厚度计算。
D.与管材配套的支架、塑料塞、两头法兰盘，焊条、焊枪、热缩带等齐全。
E.表中的允许偏差是按CJ/114-2000行业标准制定的。
计算公式为：外径≤400mm时，上下偏差之和=0.1×公称壁厚+0.2
外径≥400mm时，上下偏差之和=0.15×公称壁厚+0.2