一、热镀锌大棚管:热镀锌管是使熔融金属与铁基体反应而产生合金层,从而使基体和镀层二者相结合。先将钢管进行酸洗,为了去除钢管表面的氧化铁,酸洗后,通过氯化铵或氯化锌水溶液或氯化铵和氯化锌混合水溶液槽中进行清洗,然后送入热浸镀槽中。热镀锌具有镀层均匀,附着力强,使用寿命长等优点。热镀锌钢管基体与熔融的镀液发生复杂的物理、化学反应,形成耐腐蚀的结构紧密的锌一铁合金层。合金层与纯锌层、钢管基体融为一体。故其耐腐蚀能力强。
二、镀锌带大棚管:镀锌带管把生产热镀锌管的生产工艺做了调整。先对其制管用的带钢进行酸洗,为了去除带钢表面的氧化铁,酸洗后,通过氯化铵或氯化锌水溶液或氯化铵和氯化锌混合水溶液槽中进行清洗,然后送入热浸镀槽中。然后风干,再制成管。具有镀层均匀、光亮,镀锌量很少,比生产热镀锌管的成本低。其耐腐蚀能力比热镀锌管稍差!
OD (mm) |
Thickness (mm) | |||||||||||||||
0.5 | 0.6 | 0.8 | 1 | 1.2 | 1.4 | 1.5 | 1.6 | 1.8 | 2 | 2.2 | 2.5 | 2.8 | 3 | 3.2 | 3.5 | |
Theoretical weight (kg/m) | ||||||||||||||||
5 | 0.055 | 0.065 | 0.083 | 0.099 | ||||||||||||
8 | 0.092 | 0.109 | 0.142 | 0.173 | 0.201 | |||||||||||
10 | 0.117 | 0.139 | 0.181 | 0.222 | 0.26 | |||||||||||
12 | 0.142 | 0.169 | 0.221 | 0.271 | 0.32 | 0.366 | 0.388 | 0.41 | ||||||||
13 | 0.183 | 0.241 | 0.296 | 0.343 | 0.4 | 0.425 | 0.45 | |||||||||
14 | 0.198 | 0.26 | 0.321 | 0.379 | 0.435 | 0.462 | 0.489 | |||||||||
15 | 0.123 | 0.28 | 0.345 | 0.408 | 0.47 | 0.499 | 0.529 | |||||||||
16 | 0.228 | 0.3 | 0.37 | 0.438 | 0.504 | 0.536 | 0.568 | |||||||||
17 | 0.243 | 0.32 | 0.395 | 0.468 | 0.359 | 0.573 | 0.608 | |||||||||
18 | 0.257 | 0.339 | 0.419 | 0.497 | 0.573 | 0.61 | 0.647 | |||||||||
19 | 0.272 | 0.359 | 0.444 | 0.527 | 0.608 | 0.647 | 0.687 | |||||||||
20 | 0.287 | 0.379 | 0.469 | 0.556 | 0.642 | 0.684 | 0.726 | 0.808 | 0.888 | |||||||
21 | 0.399 | 0.493 | 0.586 | 0.677 | 0.721 | 0.765 | 0.852 | 0.937 | ||||||||
22 | 0.418 | 0.518 | 0.616 | 0.704 | 0.758 | 0.805 | 0.897 | 0.986 | 1.074 | |||||||
25 | 0.477 | 0.592 | 0.704 | 0.815 | 0.869 | 0.923 | 1.03 | 1.134 | 1.237 | 1.387 | ||||||
28 | 0.537 | 0.666 | 0.793 | 0.918 | 0.98 | 1.0412 | 1.163 | 1.282 | 1.4 | 1.572 | 1.74 | |||||
30 | 0.576 | 0.715 | 0.852 | 0.987 | 1.054 | 1.121 | 1.252 | 1.381 | 1.508 | 1.695 | 1.878 | 1.997 | ||||
32 | 0.764 | 0.911 | 1.065 | 1.128 | 1.199 | 1.341 | 1.48 | 1.617 | 1.1819 | 2.016 | 2.145 | |||||
34 | 0.814 | 0.971 | 1.125 | 1.202 | 1.278 | 1.429 | 1.578 | 1.725 | 1.942 | 2.154 | 2.293 | |||||
37 | 0.888 | 1.059 | 1.229 | 1.313 | 1.397 | 1.562 | 1.726 | 1.888 | 2.127 | 2.361 | 2.515 | |||||
38 | 0.912 | 1.089 | 1.264 | 1.35 | 1.436 | 1.607 | 1.776 | 1.942 | 2.189 | 2.43 | 2.589 | 2.746 | 2.978 | |||
40 | 0.962 | 1.148 | 1.333 | 1.424 | 1.515 | 1.696 | 1.874 | 2.051 | 2.312 | 2.569 | 2.737 | 2.904 | 3.15 | |||
45 | 1.09 | 1.3 | 1.5l | 1.61 | 1.71 | 1.92 | 2.12 | 2.32 | 2.62 | 2.91 | 3.11 | 3.3 | 3.58 | |||
46 | 1.33 | 1.54 | 1.65 | 1.75 | 1.96 | 2.17 | 2.38 | 2.68 | 2.98 | 3.18 | 3.38 | 3.668 | ||||
48 | 1.38 | 1.6l | 1.72 | 1.83 | 2.05 | 2.27 | 2.48 | 2.81 | 3.12 | 3.33 | 3.54 | 3.84 | ||||
50 | 1.44 | 1.68 | 1.79 | 1.91 | 2.14 | 2.37 | 2,59 | 2.93 | 3.26 | 3.48 | 3.69 | 4.01 |