Ho Utloisisa Bohlokoa ba Mekhoa e Nepahetseng ea Welding ea Pipe bakeng sa Pipe ea Spiral Steel e Sebelisitsoeng Melaneng ea Metsi
Lipeipi tsa tšepe tsa spiralli sebelisoa haholo liphaepheng tsa metsi a ka tlas'a lefatše ka lebaka la matla a tsona a phahameng le bokhoni ba ho mamella khatello ea kantle.Liphaephe tsena li entsoe ka likhoele tsa tšepe tse kolobisitsoeng ka ho chesa tse etsang sebopeho se bilikang.Ts'ebetso ea ho cheselletsa ka spiral e sebelisetsoang ho etsa liphaephe tsena e fana ka sebopeho se setle haholo, e leng se etsang hore e be tse loketseng ho sebelisoa ka tlas'a lefatše.
| Nominal Outer Diameter | Botenya ba Lebota ka Lebitso (mm) | ||||||||||||||
| mm ka | 6.0 | 7.0 | 8.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 16.0 | 18.0 | 20.0 | 22.0 | |
| Boima ka Bolelele ba Yuniti (kg/m) | |||||||||||||||
| 219.1 | 8-5/8 | 31.53 | 36.61 | 41.65 | |||||||||||
| 273.1 | 10-3/4 | 39.52 | 45.94 | 52.30 | |||||||||||
| 323.9 | 12-3/4 | 47.04 | 54.71 | 62.32 | 69.89 | 77.41 | |||||||||
| (325) | 47.20 | 54.90 | 62.54 | 70.14 | 77.68 | ||||||||||
| 355.6 | 14 | 51.73 | 60.18 | 68.58 | 76.93 | 85.23 | |||||||||
| (377.0) | 54.89 | 63.87 | 72.80 | 81.67 | 90.50 | ||||||||||
| 406.4 | 16 | 59.25 | 68.95 | 78.60 | 88.20 | 97.76 | 107.26 | 116.72 | |||||||
| (426.0) | 62.14 | 72.33 | 82.46 | 92.55 | 102.59 | 112.58 | 122.51 | ||||||||
| 457 | 18 | 66.73 | 77.68 | 88.58 | 99.44 | 110.24 | 120.99 | 131.69 | |||||||
| (478.0) | 69.84 | 81.30 | 92.72 | 104.09 | 115.41 | 126.69 | 137.90 | ||||||||
| 508.0 | 20 | 74.28 | 86.49 | 98.65 | 110.75 | 122.81 | 134.82 | 146.79 | 158.69 | 170.56 | |||||
| (529.0) | 77.38 | 90.11 | 102.78 | 115.40 | 127.99 | 140.52 | 152.99 | 165.43 | 177.80 | ||||||
| 559.0 | 22 | 81.82 | 95.29 | 108.70 | 122.07 | 135.38 | 148.65 | 161.88 | 175.04 | 188.17 | |||||
| 610.0 | 24 | 89.37 | 104.10 | 118.77 | 133.39 | 147.97 | 162.48 | 176.97 | 191.40 | 205.78 | |||||
| (630.0) | 92.33 | 107.54 | 122.71 | 137.83 | 152.90 | 167.92 | 182.89 | 197.81 | 212.68 | ||||||
| 660.0 | 26 | 96.77 | 112.73 | 128.63 | 144.48 | 160.30 | 176.05 | 191.77 | 207.43 | 223.04 | |||||
| 711.0 | 28 | 104.32 | 121.53 | 138.70 | 155.81 | 172.88 | 189.89 | 206.86 | 223.78 | 240.65 | 257.47 | 274.24 | |||
| (720.0) | 105.65 | 123.09 | 140.47 | 157.81 | 175.10 | 192.34 | 209.52 | 226.66 | 243.75 | 260.80 | 277.79 | ||||
| 762.0 | 30 | 111.86 | 130.34 | 148.76 | 167.13 | 185.45 | 203.73 | 211.95 | 240.13 | 258.26 | 276.33 | 294.36 | |||
| 813.0 | 32 | 119.41 | 139.14 | 158.82 | 178.45 | 198.03 | 217.56 | 237.05 | 256.48 | 275.86 | 295.20 | 314.48 | |||
| (820.0) | 120.45 | 140.35 | 160.20 | 180.00 | 199.76 | 219.46 | 239.12 | 258.72 | 278.28 | 297.79 | 317.25 | ||||
| 864.0 | 34 | 147.94 | 168.88 | 189.77 | 210.61 | 231.40 | 252.14 | 272.83 | 293.47 | 314.06 | 334.61 | ||||
| 914.0 | 36 | 178.75 | 200.87 | 222.94 | 244.96 | 266.94 | 288.86 | 310.73 | 332.56 | 354.34 | |||||
| (920.0) | 179.93 | 202.20 | 224.42 | 246.59 | 286.70 | 290.78 | 312.79 | 334.78 | 356.68 | ||||||
| 965.0 | 38 | 188.81 | 212.19 | 235.52 | 258.80 | 282.03 | 305.21 | 328.34 | 351.43 | 374.46 | |||||
| 1016.0 | 40 | 198.87 | 223.51 | 248.09 | 272.63 | 297.12 | 321.56 | 345.95 | 370.29 | 394.58 | 443.02 | ||||
| (1020.0) | 199.66 | 224.39 | 249.08 | 273.72 | 298.31 | 322.84 | 347.33 | 371.77 | 396.16 | 444.77 | |||||
| 1067.0 | 42 | 208.93 | 234.83 | 260.67 | 286.47 | 312.21 | 337.91 | 363.56 | 389.16 | 414.71 | 465.66 | ||||
| 118.0 | 44 | 218.99 | 246.15 | 273.25 | 300.30 | 327.31 | 354.26 | 381.17 | 408.02 | 343.83 | 488.30 | ||||
| 1168.0 | 46 | 228.86 | 257.24 | 285.58 | 313.87 | 342.10 | 370.29 | 398.43 | 426.52 | 454.56 | 510.49 | ||||
| 1219.0 | 48 | 238.92 | 268.56 | 298.16 | 327.70 | 357.20 | 386.64 | 416.04 | 445.39 | 474.68 | 553.13 | ||||
| (1220.0) | 239.12 | 268.78 | 198.40 | 327.97 | 357.49 | 386.96 | 146.38 | 445.76 | 475.08 | 533.58 | |||||
| 1321.0 | 52 | 291.20 | 323.31 | 327.97 | 387.38 | 449.34 | 451.26 | 483.12 | 514.93 | 578.41 | |||||
| (1420.0) | 347.72 | 355.37 | 416.66 | 451.08 | 485.41 | 519.74 | 553.96 | 622.32 | 690.52 | ||||||
| 1422.0 | 56 | 348.22 | 382.23 | 417.27 | 451.72 | 486.13 | 520.48 | 554.97 | 623.25 | 691.51 | 759.58 | ||||
| 1524.0 | 60 | 373.38 | 410.44 | 447.46 | 484.43 | 521.34 | 558.21 | 595.03 | 688.52 | 741.82 | 814.91 | ||||
| (1620.0) | 397.03 | 436.48 | 457.84 | 515.20 | 554.46 | 593.73 | 623.87 | 711.11 | 789.12 | 867.00 | |||||
| 1626.0 | 64 | 398.53 | 438.11 | 477.64 | 517.13 | 556.56 | 595.95 | 635.28 | 713.80 | 792.13 | 870.26 | ||||
| 1727.0 | 68 | 423.44 | 465.51 | 507.53 | 549.51 | 591.43 | 633.31 | 675.13 | 758.64 | 841.94 | 925.05 | ||||
| (1820.0) | 446.37 | 492.74 | 535.06 | 579.32 | 623.50 | 667.71 | 711.79 | 799.92 | 887.81 | 975.51 | |||||
| 1829.0 | 72 | 493.18 | 626.65 | 671.04 | 714.20 | 803.92 | 890.77 | 980.39 | |||||||
| 1930.0 | 76 | 661.52 | 708.40 | 755.23 | 848.75 | 942.07 | 1035.19 | ||||||||
| (2020.0) | 692.60 | 741.69 | 790.75 | 888.70 | 986.41 | 1084.02 | |||||||||
| 2032.0 | 80 | 696.74 | 746.13 | 795.48 | 894.03 | 992.38 | 1090.53 | ||||||||
| (2220.0) | 761.65 | 815.68 | 869.66 | 977.50 | 1085.80 | 1192.53 | |||||||||
| (2420.0) | 948.58 | 1066.26 | 1183.75 | 1301.04 | |||||||||||
| (2540.0) | 100 | 995.93 | 1119.53 | 1242.94 | 1366.15 | ||||||||||
| (2845.0) | 112 | 1116.28 | 1254.93 | 1393.37 | 1531.63 | ||||||||||
Hlokomela:
1. Hape ho na le liphaephe tsa tšepe ka bophara ba ka ntle ka lebitso le botenya ba lebota ka lebitso pakeng tsa boholo ba tsona bo haufi bo thathamisitsoeng tafoleng, empa konteraka e tla saena.
2. Li-diameter tse ka ntle ka lebitso ka har'a masakaneng tafoleng ke li-diameter tse bolokiloeng.
E 'ngoe ea lintlha tsa bohlokoa ka ho fetisisa tsa ho sebelisa tšepe ea spiralpipe bakeng sa melapo ea metsi a ka tlas'a lefatšeke mekhoa e nepahetseng ea ho cheselletsa.Welding ke mokhoa oa ho kopanya likarolo tse peli tsa tšepe ka ho sebelisa mocheso le khatello.Bakeng sa liphaephe tsa metsi a ka tlas'a lefatše, boleng ba tjheseletsa bo ama ka ho toba botšepehi le botšepehi ba lipeipi.
E nepahetsengmekhoa ea ho kenya lipeipibakeng sa phala ea tšepe ea spiral e kenyelletsa mehato e 'maloa ea bohlokoa.Taba ea pele, bokaholimo ba phala e tla chesetsoa bo tlameha ho hloeka le ho hloka litšila tse kang litšila, oli kapa pente.Sena se tiisa hore weld e matla ebile ha e na litšila tse ka senyang matla a eona.
Ka mor'a moo, litekanyetso tsa ho tjheseletsa tse kang ho kenya mocheso, lebelo la ho tjheseletsa, le mokhoa o tlameha ho laoloa ka hloko ho finyella li-welds tsa boleng bo phahameng.Ho sebelisa lisebelisoa le mekhoa e nepahetseng ea ho cheselletsa ho bohlokoa ho thibela mefokolo e kang porosity, mapetsong, kapa khaello ea fusion, e ka senyang botšepehi ba weld.
Ho feta moo, mekhoa e nepahetseng ea ho futhumatsa le ho futhumatsa mocheso ka mor'a weld e bohlokoa bakeng sa phala ea tšepe ea spiral e sebelisoang meleng ea metsi a ka tlas'a lefatše.Preheating e thusa ho fokotsa kotsi ea ho senya le ho ntlafatsa boleng ba weld ka kakaretso, ha phekolo ea mocheso oa post-weld e imolla khatello ea kelello e setseng 'me e tiisa microstructure e tšoanang ho pholletsa le sebaka sohle sa weld.
Ntle le moo, ts'ebeliso ea mahlale a tsoetseng pele a ho tjheseletsa joalo ka lits'ebetso tsa ho tjheseletsa ka boiketsetso le liteko tse sa senyeheng li ka ntlafatsa le ho feta boleng le ts'epahalo ea welding.Theknoloji ena e thusa ho netefatsa hore maqhama a cheselitsoeng a kopana le matla a hlokahalang le litekanyetso tsa boleng ho fana ka khotso ea kelello mabapi le ts'ebetso ea nako e telele ea melapo ea metsi a ka tlas'a lefatše.
Ka kakaretso, mekhoa e nepahetseng ea ho tjheseletsa liphaephe e bohlokoa ho netefatsa botšepehi le bophelo bo bolelele ba phala ea tšepe ea spiral e sebelisoang meleng ea metsi a ka tlas'a lefatše.Ka ho latela litekanyo tse hlokahalang tsa tjheseletsa, mekhoa le mehato ea ho laola boleng, kotsi ea mefokolo le mefokolo ea welding e ka fokotsoa haholo.Sephetho ke mohala o tšepahalang le o tšoarellang oa metsi a ka tlas'a lefatše o ka mamellang teko ea nako le ho fana ka litšebeletso tsa phano ea metsi tse bolokehileng le tse sebetsang hantle.Bakeng sa lithapo tsa metsi a ka tlas'a lefatše, ho tsetela lenaneong le nepahetseng la ho cheselletsa ke mohato oa bohlokoa ho netefatsa ho ts'epahala le bophelo bo bolelele ba lipeipi.
