Karfe welded bututu na gada tulin an yi su da zafi birgima karfe tsiri coils a matsayin bututu blanks, sau da yawa warmed kuma spirally kafa, kuma sanya biyu submerged baka waldi ko high mita waldi. Ana amfani da su don tarin tushe a cikin gine-ginen gine-gine, docks, gadoji.
Karfe bututu don tara gada abu ne da ba makawa a cikin ginin gada. Yana da halaye na babban ƙarfi, juriya na lalata, da kyakkyawan juriya da matsawa. Irin wannan bututun ƙarfe ana yin ta ne ta na'ura mai jujjuyawar farantin. Ana jujjuya shi cikin siffa mai karkace sau da yawa kuma an haɗa shi a gefen farantin don samar da tsari mai tsayi mai kama da bututu. Karkace bututun karfe ana amfani da ko'ina a gada tarawa saboda su sauki samar da dace yi. Yin amfani da tulin bututun karfe na karkace na iya rage tsawon lokacin gini da rage tsadar gine-gine, kuma saboda karfin juriya da matsawa da yake da shi, yana iya kara karfin juriya na jigilar gada.
Kafin gina bututun ƙarfe na karkace, za a yi gwajin gwaji na zahiri da na sinadarai don tabbatar da ingancinsu ya dace da ma'auni. Har ila yau, bututun ƙarfe na karkace za su yi amfani da tsarin sanyaya mai ma'ana yayin aikin samarwa don guje wa fashewar ciki da inganta ingancin bututun ƙarfe a fannoni da yawa. Dangane da sarrafawar samarwa, za a ba da hankali ga kula da zafin jiki na dumama, isasshen lokacin riƙewa da daidaita saurin abin nadi, duk waɗannan don haɓaka ƙarfin filastik da ingancin gabaɗaya na bututun ƙarfe mai kauri mai kauri.
Bugu da kari, ana kuma amfani da bututun karfe mai karkata zuwa cikin tekun karkashin ruwa, kamar wajen gina gadoji, da jiragen ruwa, dandali na teku da sauran ayyuka. Kwancen tsarin, juriyar lalata da sauƙi na gina bututun ƙarfe na karkace sun sa su zama kayan da aka fi so don tarawa cikin ruwa. Ana iya haɗa shi ta hanyar haɗin zaren ko walda don inganta aikin gini.
Gabaɗaya, bututun ƙarfe na karkata zuwa gada suna taka muhimmiyar rawa wajen gina gada da sauran ayyukan injiniyan ruwa saboda fa'idodi da yawa da suke da shi, kuma tare da haɓakar fasaha, ikon aikace-aikacen su da rawar da suke takawa za su yi girma da girma.
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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