Cov Kav Dej Welded Rau Cov Kav Dej Roj Ntuj
Cov yeeb nkab vuam sib txuas, tseem hu uarajvuam, yog tsim los ntawm kev siv cov thev naus laus zis vuam siab heev los tsim cov khoom muaj zog. Nws muaj cov pob qij txha sib txuas ua ke los ntawm kev vuam cov hlau ua ke. Cov qauv tshwj xeeb no muab lub zog tsis muaj qhov sib piv, ua rau nws zoo tagnrho rau cov ntawv thov uas xav tau xws licov kav roj av.
Ib qho ntawm cov kev siv tseem ceeb ntawm cov yeeb nkab vuam uas muaj kauv yog kev thauj roj av. Nws tau tsim tshwj xeeb thiab tsim los kom tiv taus qhov chaw muaj kev kub ntxhov siab uas cuam tshuam nrog kev xa roj av. Cov yeeb nkab vuam uas muaj kauv ua kom muaj kev nyab xeeb thiab ua tau zoo ntawm kev xa roj av mus rau cov lag luam thiab cov neeg siv khoom, kom ntseeg tau tias muaj kev xa khoom zoo thiab txo qis kev xau lossis xwm txheej.
| Nominal Sab Nraud Txoj Kab uas hla | Phab Ntsa Nominal Thickness (hli) | ||||||||||||||
| mm | In | 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 |
| Qhov Hnyav Ib Chav Ntev (kg/m2) | |||||||||||||||
| 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 | ||||||||||
Tsis tas li ntawd,cov kav dej sib txuas ua kekuj siv dav hauv cov dej xau thiab cov kav dej ntws. Nws txoj kev tsim kho tsis xau thiab tiv taus xeb ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev thauj dej ntawm qhov chaw mus rau qhov chaw. Vim nws lub zog ruaj khov, nws tuaj yeem tiv taus cov xwm txheej nyuaj uas feem ntau ntsib hauv cov haujlwm xa dej, muab cov zej zog thiab cov lag luam nrog cov kev daws teeb meem ntev thiab txhim khu kev qha.
Hauv kev lag luam petrochemical, cov kav dej vuam uas muaj kauv ua lub luag haujlwm tseem ceeb hauv kev thauj cov roj, cov pa dej, cov roj av liquefied thiab lwm yam khoom. Nws lub zog siab thiab kev tiv thaiv corrosion ua rau nws yog qhov kev xaiv zoo rau kev thauj cov khoom siv volatile no. Txawm hais tias nws yog lub Hoobkas petrochemical loj lossis kev teeb tsa me me, cov kav dej vuam uas muaj kauv ua kom muaj kev nyab xeeb thiab ua haujlwm tau zoo ntawm cov peev txheej tseem ceeb no.
Tsis tas li ntawd xwb, cov qauv ntawm cov yeeb nkab vuam uas muaj kauv kuj siv dav heev. Nws feem ntau siv ua cov raj piling rau lub hauv paus hauv cov haujlwm tsim kho, muab kev txhawb nqa thiab kev ruaj khov tsim nyog. Lub zog ntawm cov yeeb nkab kuj ua rau nws yog thawj qhov kev xaiv rau cov choj, chaw nres nkoj, txoj kev thiab cov qauv tsev. Lawv lub peev xwm los tiv taus cov khoom hnyav thiab cov zog sab nraud ua kom muaj kev nyab xeeb thiab kev ncaj ncees ntawm cov qauv no, ua rau lawv yog ib qho tseem ceeb hauv kev tsim kho hauv nroog.
Xaus lus, cov yeeb nkab vuam uas muaj kauv (tseem hu ua cov yeeb nkab vuam) muab kev daws teeb meem ntau yam thiab ruaj khov rau ntau yam lag luam thiab cov sectors. Nws ntau yam kev siv suav nrog kev tsim dej, kev lag luam petrochemical, kev lag luam tshuaj lom neeg, kev lag luam fais fab, kev ua liaj ua teb, kev tsim kho hauv nroog, thiab lwm yam. Txawm siv rau kev thauj cov kua lossis roj, lossis rau cov hom phiaj kev tsim kho, cov yeeb nkab vuam uas muaj kauv yog qhov kev xaiv txhim khu kev qha thiab ua haujlwm tau zoo. Nrog nws lub zog tshwj xeeb, elasticity thiab corrosion tsis kam, nws tseem yog ib qho tseem ceeb hauv kev lag luam niaj hnub no.
