Karfe welded bututu na tarawa ana yin su da zafi-birgima mai tsiri tsiri a matsayin bututu blanks, sau da yawa warmed da karkace kafa, kuma sanya biyu submerged baka waldi ko high-mita waldi. Ana amfani da su don bututun ƙarfe don tarin tushe a cikin gine-ginen gine-gine, docks, gadoji, da dai sauransu.
Karfe bututu don tarawa bututun karfe ne mai karkace wanda aka yi shi da coils na karfe a matsayin albarkatun kasa, ana fitar da shi a yanayin zafi na yau da kullun, kuma ana walda shi ta hanyar sarrafa walda mai fuska biyu ta atomatik.
(1) Raw kayan sun hada da karfe tsiri nada, walda waya da juyi. Dole ne a yi bincike mai tsauri na zahiri da na sinadarai kafin a fara amfani da su.
(2) Kai da wutsiya na tsiri na ƙarfe suna haɗe-haɗe ta hanyar amfani da wayoyi guda ɗaya ko wayoyi biyu na nutsewar baka. Bayan an jujjuya shi cikin bututun ƙarfe, ana amfani da walda ta atomatik ta atomatik don gyara walda.
(3) Kafin a kafa, an daidaita karfen tsiri, an gyara shi, an tsara shi, an tsaftace shi, ana jigilar shi kuma an riga an lankwasa shi.
(4) Ana amfani da ma'aunin matsin lamba na lantarki don sarrafa matsa lamba na silinda a ɓangarorin biyu na isar da sako don tabbatar da sufuri mai sauƙi na tsiri.
(5) Ɗauki iko na waje ko ƙirƙirar abin nadi na ciki.
(6) Ana amfani da na'urar sarrafa ratar walda don tabbatar da cewa tazarar walda ta cika buƙatun walda. Diamita na bututu, adadin kashewa da tazarar walda duk ana sarrafa su sosai.
(7) Dukansu walda na ciki da na waje suna amfani da injinan walda lantarki na Lincoln na Amurka don walƙiyar walda mai-ɗaya ko wayoyi biyu don samun ingantaccen ingancin walda.
(8) Dukkanin waldawan da aka kammala an duba su ta hanyar yanar gizo mai ci gaba da mai gano lahani ta atomatik na ultrasonic, yana tabbatar da ɗaukar hoto mara lahani na 100% na karkace welds. Idan akwai lahani, zai ƙararrawa ta atomatik da alamar fesa, don ma'aikatan samarwa su iya daidaita sigogin tsari a kowane lokaci don kawar da lahani a cikin lokaci.
(9) Yi amfani da injin yankan plasma na iska don yanke bututun ƙarfe zuwa guda ɗaya.
(10) Bayan yanke cikin bututun ƙarfe guda ɗaya, kowane nau'in bututun ƙarfe dole ne a yi tsarin dubawa na farko don bincika kaddarorin injin, abun da ke tattare da sinadarai, yanayin haɗuwa na walda, ingancin saman bututun ƙarfe, da gwaji marasa lalacewa. don tabbatar da cewa tsarin yin bututun ya cancanta. Daga nan ne kawai za a iya sanya shi a hukumance a samarwa.
(11) Wuraren da ke da ci gaba da alamun gano lahani na sonic akan welds za su sake yin gwajin ultrasonic da X-ray na hannu. Idan da gaske akwai nakasu sai a gyara su sannan a sake duba su ba tare da lalacewa ba har sai an tabbatar an kawar da nakasun.
(12) Tilas ne a duba bututun da tarkacen ginshiƙan ginshiƙai da haɗin gwiwa masu siffa T masu tsaka-tsaki na walda ɗin karkace, dole ne a duba su ta talabijin ko fim na X-ray.
(13) Kowanne bututun karfe ya yi gwajin matsa lamba na hydrostatic, kuma an rufe matsin lamba. Matsin gwajin da lokaci ana sarrafa shi ta hanyar na'urar gano ma'aunin ruwa na bututun ƙarfe. Ana buga sigogin gwaji ta atomatik kuma ana yin rikodin su.
(14) An ƙera ƙarshen bututun don sarrafa daidaitaccen tsayin fuska na ƙarshen, kusurwar bevel da baki mara kyau.
OD | Kauri Wall (mm) | ||||||||||||
inch | mm | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
8 | 219 | 26.88 | 32.02 | 37.10 | 42.13 | ||||||||
9 | 245 | 30.09 | 35.86 | 41.59 | 47.26 | ||||||||
10 | 273 | 33.55 | 40.01 | 46.42 | 52.78 | 59.10 | 65.36 | ||||||
12.5 | 325 | 39.96 | 47.70 | 55.40 | 63.04 | 70.64 | 78.18 | ||||||
14 | 377 | 46.37 | 55.40 | 64.37 | 73.30 | 82.18 | 91.09 | ||||||
16 | 426 | 52.41 | 62.65 | 72.83 | 82.97 | 93.05 | 103.09 | ||||||
18 | 478 | 58.82 | 70.34 | 81.81 | 93.23 | 104.60 | 115.92 | ||||||
20 | 529 | 65.11 | 77.89 | 90.61 | 103.29 | 115.92 | 128.49 | 141.02 | 153.50 | 165.93 | |||
24 | 630 | 92.83 | 108.05 | 123.22 | 138.33 | 153.40 | 168.42 | 183.39 | 198.31 | ||||
28 | 720 | 106.12 | 123.59 | 140.97 | 158.31 | 175.60 | 192.84 | 210.02 | 227.16 | ||||
32 | 820 | 120.95 | 140.85 | 160.70 | 180.50 | 200.26 | 219.96 | 239.62 | 259.22 | ||||
36 | 920 | 135.74 | 158.10 | 180.43 | 202.70 | 224.92 | 247.09 | 269.21 | 291.28 | ||||
40 | 1020 | 150.54 | 175.36 | 200.16 | 224.89 | 249.58 | 274.22 | 298.81 | 323.34 | 347.82 | 396.66 | 445.29 | |
44 | 1120 | 219.89 | 247.09 | 274.24 | 301.35 | 328.40 | 335.40 | 382.36 | 436.12 | 489.69 | |||
48 | 1220 | 239.62 | 269.29 | 297.90 | 328.47 | 357.99 | 387.46 | 416.88 | 475.58 | 534.08 | |||
52 | 1320 | 259.35 | 291.48 | 323.57 | 355.60 | 387.59 | 419.52 | 451.41 | 515.04 | 578.47 | |||
56 | 1420 | 279.08 | 313.68 | 348.23 | 382.73 | 417.18 | 451.58 | 485.94 | 485.94 | 622.86 | |||
60 | 1520 | 298.81 | 335.87 | 372.89 | 409.86 | 446.77 | 483.64 | 520.46 | 593.95 | 667.25 | |||
64 | 1620 | 318.53 | 358.08 | 397.55 | 436.98 | 476.37 | 515.70 | 554.99 | 633.41 | 711.64 | |||
68 | 1720 | 338.26 | 380.26 | 422.21 | 464.11 | 505.96 | 547.76 | 589.52 | 672.87 | 756.03 | |||
72 | 1820 | 402.46 | 446.87 | 491.24 | 535.56 | 579.82 | 624.04 | 715.33 | 800.42 | ||||
76 | 1920 | 424.65 | 471.53 | 518.37 | 565.15 | 611.88 | 658.57 | 751.79 | 844.81 | ||||
80 | 2020 | 446.85 | 496.20 | 545.49 | 594.74 | 643.94 | 693.09 | 791.25 | 889.20 | ||||
2030 | 449.07 | 499.16 | 584.21 | 598.29 | 647.15 | 697.24 | 795.98 | 894.53 |
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