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Kantin Jirgin ERW dai cikin kwayaƙi ayyuka
Kallashi mai tsuntsuwa na cikin kwayoyin shiruwa ne kallashi mai tsuntsuwa ake yiwuwa a cikin kwayoyin shiruwa na daki, matankari, sabon rana da wani wadannan mai shiruwa. Suna iya aikawa ga kawo, tsuntsuwan girgiri da wani wadannan mai tsuntsuwan bincikenin.
Kallashi mai tsuntsuwa na cikin kwayoyin shiruwa ne kallashi mai tsuntsuwa ake yiwuwa a cikin kwayoyin shiruwa na daki, matankari, sabon rana da wani wadannan mai shiruwa. Suna iya aikawa ga kawo, tsuntsuwan girgiri da wani wadannan mai tsuntsuwan bincikenin.
Wannan suna makala jikinsu a cikin tambayaƙwar kankara ERW daga:
Labarar kasance: Kankarun ERW daga suka yi shi a cikin labarar submerged arc welding, yanzu suka sami masu amfani da watsa ne.
Mai tabbatar masu amfani: Su na soya a cikin tambayoyin tattabbanin rana, mai tabbatar masu amfani: Su na soya a cikin tambayoyin tattabbanin rana, mai tabbatar masu amfani: Su na soya a cikin tambayoyin tattabbanin rana, tambayoyin kankara na cikin gari, mai tabbatar masu amfani: Su na soya a cikin tambayoyin tattabbanin rana, tambayoyin kankara na cikin gari, tambayoyin kankara na cikin gari, tambayoyin kankara na cikin gari, tambayoyin kankara na cikin gari.
Sunan kwayoyin: Kuka na daga mai tsuntsuwar gida da kawai tare da sabon cikakken, diameter na kuka daidai, walls na kuka saboda, shirin aiki da kula rayuwa, daidai da kula mara, suka yi amfani da kula kashin. Su ne yanzu a matsayi muduwar jiki a cepparwa ta hanyar kula jiki a cepparwa.
Tsayawa na equipment: Kuka na daga mai tsuntsuwar gida suka yi amfani da equipment mai sabon cikakken, misali suna dredgers. Dredgers biyu suna: mechanical da hydraulic. Dukchi, dredgers na hydraulic suka yi amfani da water mai shirin daidai ko suka yi amfani da reamers da rake heads a kula jiki, daidai suka yi amfani da pump na jiki a so jiki a cepparwa wara kuka na daga mai tsuntsuwar gida.
Matsayiyar: Sabbin kuka na daga mai tsuntsuwar gida bane yi amfani da matsayiyar na gaban, misali GB/T 13793-2016 "Kuka na daga mai tsuntsuwar electric welded".
Talibin aikin: Ana so daidai ga talibin gida don wannan kasa da amfani da wadannan suna da alamna环境保护 requirements, talibin gida don straight seam steel pipes ana gabata daga aikin urban dredging.
Kewaye: Dredging straight seam steel pipes suka samu rubutu daidai don affordable price-yan suka samu shi a cikin urban dredging projects.
Sunan alamna: Dredged steel pipes baya ce yana so da alamna daidai, mai hadin da kan pipe, dimensional accuracy da weld quality.
Don gaba, straight seam steel pipes don urban dredging binciken yana samun rubutu daidai da economy-yan suka samu shi a cikin urban dredging projects.
| Matsakaicin matsakaici | Marufi | BS1387 | Astm a53 | ||||||||||
| inci | DN | mm | Mai girma | Taswin daidai | O.D | W,T (MM) | W.T (MM) real | O.D | W.T (MM) | ||||
| THEORETICALLY | WAN ANA | inji mai kwakwalwa | mm | A | WAN ANA | B | WAN ANA | mm | SCH40 | WAN ANA | |||
| 1/2” | 15 | 20 | 21.3 | 217 | 169 | 21.3 | 2.00 | 1.80 | 2.60 | 2.50 | 21.3 | 2.77 | 2.50 |
| 3/4” | 20 | 25 | 26.9 | 169 | 127 | 26.9 | 2.30 | 2.20 | 2.60 | 2.50 | 26.7 | 2.87 | 2.75 |
| 1” | 25 | 32 | 33.4 | 127 | 91 | 33.7 | 2.60 | 2.50 | 3.20 | 3.00 | 33.4 | 3.38 | 3.00 |
| 11/4” | 32 | 40 | 42.4 | 91 | 61 | 42.4 | 2.60 | 2.50 | 3.20 | 3.00 | 42.2 | 3.56 | 3.25 |
| 11/2” | 40 | 47 | 48.3 | 91 | 61 | 48.3 | 2.90 | 2.75 | 3.20 | 3.00 | 48.3 | 3.68 | 3.25 |
| 2” | 50 | 58 | 60.3 | 61 | 37 | 60.3 | 2.90 | 2.75 | 3.60 | 3.50 | 60.3 | 3.91 | 3.50 |
| 2 1/2” | 65 | 73 | 76.1 | 37 | 19 | 76.1 | 3.20 | 3.00 | 3.60 | 3.50 | 73 | 5.16 | 4.75 |
| 3” | 80 | 87 | 88.9 | 37 | 19 | 88.9 | 3.20 | 3.00 | 4.00 | 3.75 | 88.9 | 5.49 | 5.00 |
| 4” | 100 | 113 | 114.3 | 19 | 19 | 114.3 | 3.60 | 3.50 | 4.50 | 4.25 | 114.3 | 6.02 | 5.50 |
| 5” | 125 | 140 | 19 | 10 | 139.7 | - | - | 5.00 | 4.75 | 141.3 | 6.55 | 6.00 | |
| 6” | 150 | 165 | 19 | 7 | 165 | - | - | 5.00 | 4.75 | 168.3 | 7.11 | 6.50 | |
| 8” | 200 | 219 | 7 | 5 | 219.1 | - | - | - | - | 219.3 | 8.18 | 7.50 | |
| 10” | 250 | 273 | 5 | 3 | 273 | - | - | - | - | 273 | 9.27 | 8.50 | |
| 12” | 300 | 325 | 3 | 3 | 325 | - | - | - | - | 323.9 | 10.31 | 9.50 | |
