Ƙarfin Bututu Biyu Weld a cikin Aikace-aikacen Masana'antu
Biyu welded bututuan gina su tare da walda masu zaman kansu guda biyu don samar da haɗin gwiwa mai ƙarfi da aminci tsakanin sassan bututu. Wannan tsarin waldawa sau biyu yana tabbatar da cewa bututu zai iya jure wa damuwa da damuwa da za a iya fuskanta yayin aiki, yana sa ya zama abin dogara ga aikace-aikace masu mahimmanci inda rashin nasara ba zaɓi ba ne.
Ɗaya daga cikin manyan fa'idodin bututu masu walda biyu shine ikonsu na iya ɗaukar yanayin matsa lamba. Tsarin waldawa guda biyu yana haifar da haɗin kai da ƙarfi tsakanin sassan bututu, tabbatar da cewa za su iya jure wa matsalolin ciki ba tare da hadarin yatsa ko gazawa ba. Wannan ya sa su dace don aikace-aikace kamar bututun mai da iskar gas, inda amincin tsarin bututun yana da mahimmanci ga aminci da ingantaccen aiki.
Tebur 2 Babban Halayen Jiki da Sinadarai Na Bututun Karfe (GB/T3091-2008, GB/T9711-2011 da API Spec 5L) | ||||||||||||||
Daidaitawa | Karfe daraja | Abubuwan Sinadari (%) | Dukiyar Tensile | Charpy(V notch) Gwajin Tasiri | ||||||||||
c | Mn | p | s | Si | Sauran | Ƙarfin Haɓaka (Mpa) | Ƙarfin Tensile (Mpa) | (L0=5.65 √ S0)min Rawan Tsayi (%)) | ||||||
max | max | max | max | max | min | max | min | max | D ≤ 168.33mm | D = 168.3 mm | ||||
GB/T3091-2008 | Q215A | 0.15 | 0.25 | 1.20 | 0.045 | 0.050 | 0.35 | Ƙara NbVTi daidai da GB/T1591-94 | 215 |
| 335 |
| 15 | > 31 |
|
Q215B | 0.15 | 0.25-0.55 | 0.045 | 0.045 | 0.035 | 215 | 335 | 15 | > 31 | |||||
Q235A | 0.22 | 0.30 | 0.65 | 0.045 | 0.050 | 0.035 | 235 | 375 | 15 | >26 | |||||
Q235B | ≤ 0.20 | 0.30 ≤ 1.80 | 0.045 | 0.045 | 0.035 | 235 | 375 | 15 | >26 | |||||
Q295A | 0.16 | 0.80-1.50 | 0.045 | 0.045 | 0.55 | 295 | 390 | 13 | >23 | |||||
Q295B | 0.16 | 0.80-1.50 | 0.045 | 0.040 | 0.55 | 295 | 390 | 13 | >23 | |||||
Q345A | 0.20 | 1.00-1.60 | 0.045 | 0.045 | 0.55 | 345 | 510 | 13 | >21 | |||||
Q345B | 0.20 | 1.00-1.60 | 0.045 | 0.040 | 0.55 | 345 | 510 | 13 | >21 | |||||
GB/T9711-2011 (PSL1) | L175 | 0.21 | 0.60 | 0.030 | 0.030 |
| Ƙara ɗaya daga cikin abubuwan NbVTi ko kowane haɗin su | 175 |
| 310 |
| 27 | Za'a iya zaɓi ɗaya ko biyu daga cikin ma'aunin tauri na tasiri makamashi da yanki mai shear. Don L555, duba ma'auni. | |
L210 | 0.22 | 0.90 | 0.030 | 0.030 | 210 | 335 | 25 | |||||||
L245 | 0.26 | 1.20 | 0.030 | 0.030 | 245 | 415 | 21 | |||||||
L290 | 0.26 | 1.30 | 0.030 | 0.030 | 290 | 415 | 21 | |||||||
L320 | 0.26 | 1.40 | 0.030 | 0.030 | 320 | 435 | 20 | |||||||
L360 | 0.26 | 1.40 | 0.030 | 0.030 | 360 | 460 | 19 | |||||||
L390 | 0.26 | 1.40 | 0.030 | 0.030 | 390 | 390 | 18 | |||||||
L415 | 0.26 | 1.40 | 0.030 | 0.030 | 415 | 520 | 17 | |||||||
L450 | 0.26 | 1.45 | 0.030 | 0.030 | 450 | 535 | 17 | |||||||
L485 | 0.26 | 1.65 | 0.030 | 0.030 | 485 | 570 | 16 | |||||||
API 5L (PSL 1) | A25 | 0.21 | 0.60 | 0.030 | 0.030 |
| Don sa B karfe, Nb + V ≤ 0.03%; don karfe ≥ sa B, zaɓin ƙara Nb ko V ko haɗin su, da Nb + V + Ti ≤ 0.15% | 172 |
| 310 |
| (L0 = 50.8mm) da za a lissafta bisa ga dabara mai zuwa: e = 1944 · A0 .2 / U0 .0 A: Yankin samfurin a mm2 U: Ƙarfin ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙarfi a cikin Mpa | Babu ko ɗaya ko duka na tasirin tasirin da yankin yanki da ake buƙata azaman ma'aunin ƙarfi. | |
A | 0.22 | 0.90 | 0.030 | 0.030 |
| 207 | 331 | |||||||
B | 0.26 | 1.20 | 0.030 | 0.030 |
| 241 | 414 | |||||||
X42 | 0.26 | 1.30 | 0.030 | 0.030 |
| 290 | 414 | |||||||
X46 | 0.26 | 1.40 | 0.030 | 0.030 |
| 317 | 434 | |||||||
X52 | 0.26 | 1.40 | 0.030 | 0.030 |
| 359 | 455 | |||||||
X56 | 0.26 | 1.40 | 0.030 | 0.030 |
| 386 | 490 | |||||||
X60 | 0.26 | 1.40 | 0.030 | 0.030 |
| 414 | 517 | |||||||
X65 | 0.26 | 1.45 | 0.030 | 0.030 |
| 448 | 531 | |||||||
X70 | 0.26 | 1.65 | 0.030 | 0.030 |
| 483 | 565 |
Bugu da ƙari, ƙarfinsa, bututun walda biyu kuma yana iya jure matsanancin zafi, yana mai da shi dacewa da hanyoyin masana'antu iri-iri. Ko jigilar ruwan zafi ko iskar gas, ko aiki a cikin mahalli tare da yanayin zafi, bututu mai waldawa biyu yana kiyaye amincin tsarinsa da aikinsa, yana tabbatar da ingantaccen aiki a ƙarƙashin yanayi mafi ƙalubale.
Bugu da ƙari, dorewar bututu mai waldawa biyu ya sa ya zama zaɓi mai tsada don aikace-aikacen masana'antu. Ƙarfin su na jure wa lalacewa, lalata da sauran nau'ikan lalacewa yana nufin suna buƙatar ƙaramar kulawa da sauyawa, rage farashin aiki gaba ɗaya da raguwar lokaci.
Gabaɗaya, yin amfani da bututu mai waldawa biyu yana ba da fa'idodi da yawa don aikace-aikacen masana'antu, gami da ƙarfi, karko da aminci. Ƙarfinsu na ɗaukar matsanancin matsin lamba, matsanancin yanayin zafi da yanayin muhalli ya sa su dace da masana'antu da yawa daga mai da gas zuwa sarrafa sinadarai. Tare da ingantaccen aikin sa da rikodin rayuwar sabis, bututu mai walda biyu abu ne mai mahimmanci ga kowane tsarin bututun masana'antu.