Ngartos Pentingna Prosedur Welding Pipa anu Leres pikeun Pipa Baja Spiral Anu Dipaké dina Jalur Cai Ground
Pipa baja spiralloba dipaké dina pipelines cai taneuh alatan kakuatan tinggi na kamampuhan pikeun tahan tekanan éksternal.Pipa-pipana didamel tina jalur gulungan baja anu digulung panas anu ngawangun bentuk spiral.Prosés las spiral dipaké pikeun rancang pipa ieu nyadiakeun integritas struktural alus teuing, sahingga idéal pikeun aplikasi jero taneuh.
| Diaméter Luar Nominal | Ketebalan Tembok Nominal (mm) | ||||||||||||||
| mm Di | 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 | |
| Beurat Per Unit Panjang （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 | ||||||||||
Catetan:
1. Ogé sadia nyaéta pipa baja dina diaméterna luar nominal jeung ketebalan témbok nominal antara ukuran padeukeut maranéhanana didaptarkeun dina tabél, tapi contractshall ditandatanganan.
2. Diaméter luar nominal dina kurung dina tabél ditangtayungan diaméterna.
Salah sahiji aspék pangpentingna ngagunakeun baja spiralpipa pikeun saluran cai bawah tanahnyaeta prosedur las ditangtoskeun.Las nyaéta prosés ngagabung dua bagian logam ku cara nerapkeun panas sarta tekanan.Pikeun pipelines cai jero taneuh, kualitas las langsung mangaruhan integritas sakabéh jeung reliabilitas pipa nu.
Leresprosedur las pipepikeun pipa baja spiral ngalibetkeun sababaraha léngkah kritis.Kahiji, beungeut pipa nu rék dilas kudu beresih jeung bébas tina sagala rereged kayaning kokotor, minyak, atawa cet.Ieu ensures yén weld téh kuat tur bébas tina najis nu bisa kompromi kakuatan na.
Salajengna, parameter las kayaning input panas, speed las, sarta téhnik kudu taliti dikawasa pikeun ngahontal welds kualitas luhur.Ngagunakeun bahan las ditangtoskeun jeung téhnik mangrupa kritik pikeun nyegah defects kayaning porosity, retakan, atawa kurangna fusi, nu bisa kompromi integritas weld nu.
Sajaba ti, preheating ditangtoskeun jeung prosedur perlakuan panas pos-las penting pikeun pipa baja spiral dipaké dina garis cai taneuh.Preheating mantuan ngurangan résiko retakan sarta ngaronjatkeun kualitas weld sakabéh, bari perlakuan panas pos-las relieves stresses residual tur ensures hiji mikrostruktur seragam sakuliah wewengkon weld.
Salaku tambahan, panggunaan téknologi las canggih sapertos prosés las otomatis sareng tés non-destructive tiasa langkung ningkatkeun kualitas sareng reliabilitas las.Téknologi ieu ngabantosan mastikeun yén sambungan anu dilas nyumponan kakuatan sareng standar kualitas anu dipikabutuh pikeun nyayogikeun katenangan ngeunaan kinerja jangka panjang garis cai taneuh.
Kasimpulanana, prosedur las pipa anu leres penting pikeun mastikeun integritas sareng umur panjang pipa baja spiral anu dianggo dina garis cai taneuh.Ku nuturkeun parameter las anu diperyogikeun, téknik sareng ukuran kontrol kualitas, résiko cacad sareng gagal las tiasa dikirangan sacara signifikan.Hasilna nyaéta garis cai taneuh anu dipercaya sareng awét anu tiasa tahan uji waktos sareng nyayogikeun jasa pangiriman cai anu aman sareng efisien.Pikeun garis cai jero taneuh, investasi dina program las ditangtoskeun mangrupakeun hambalan kritis dina mastikeun reliabiliti sakabéh tur umur panjang tina pipa nu.
