Spiral seam steel pipe bakeng sa lipeipi tse ka tlas'a lefatše
ThePhala ea ka tlas'a lefatšeke pipi ea tšepe ea tšepe e entsoeng ka peeletso tse peli tse halikiloeng habeli. Pipe e etsoa ho tsoa ho koluoa ea tšepe 'me e felisoa ka mocheso o sa khaotseng ho netefatsa hore o tla tšoarella le ho phela bophelo bo bolelele.
Thepa ea mantlha ea 'mele le ea lik'hemik'hale ea lipeipi tsa tšepe (GB / T978, GB / T9711 le Api Spec11 | ||||||||||||||
Tloaelo | Sehlopha sa tšepe | Li-combants tsa lik'hemik'hale (%) | Thepa ea Tense | Charpy (V Noch) tlhahlobo ea tšusumetso | ||||||||||
c | Mn | p | s | Si | Tse ling | Ho hlahisa ka matla (MPA) | Matla a Tense (MPA) | (L0 = 5.65 √ s0) Min ho otlolla maikutlo (%) | ||||||
Max | Max | Max | Max | Max | min | Max | min | Max | D ≤ 168.33mmmmmm | D> 168.3mm | ||||
GB / t3091 -2008 | Q215a | ≤ 0.15 | 0.25 <1.20 | 0.045 | 0.050 | 0.35 | Ho eketsa NB \ TI ho latela 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 | Boikhethelo ba eketsa e 'ngoe ea NB \ V \ TI Local kapa motsoako ofe kapa ofe oa tsona | 175 | 310 | 27 | E le 'ngoe kapa tse peli tsa tekanyetso ea matla a tšusumetso le ea ho kuta e ka khethoa. Bakeng sa L555, bona Tekanyetso. | ||||
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 | Bakeng sa kgne, nb + v ≤ 0.03%; bakeng sa sehlopha sa tšepe b, ho eketsa nb + v | 172 | 310 | (L0 = 50.8mm) ho baloa ho latela foromo e latelang: E = 1944 · 1 | Ha ho na matla kapa ka bobeli ba matla a tšusumetso le sebaka se senyehileng se hlokahala e le boima bo matla. | ||||
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 |
Kaho ea pipe e hlahisitsoeng ke pepe e tiisa hore e tiile haholo ebile e hanyetsoa, e e khetholla litsamaiso tsa sistimi e ka tlas'a lefatše.
Ntle le matla le ho se bolokehe ka tlas'a lefatše ho etselitsoe ho nolofalloa ke ho kenngoa. Tsela ea Spiral seam ea fetoha le maemo ebile ea fetoha e feto-fetohang, e lumelle ho tsamaisa habonolo le ho boloka esita le sebaka se thata ka ho fetisisa. Sena se bolela hore o ka beoa lipeipi kapele le ka nepo, ho boloka nako le litšenyehelo tsa basebetsi.
Ho feta moo, tšebeliso ea lisebelisoa tsa boleng bo holimo le ho li palama e tsoetseng pele e tiisa hore lipeipi tsa sekhukhu li hanyetsanang le ho sisinyeha le mafome. Sena se bolela hore e tla boloka botšepehi ba bona le botsitso ka lilemo, esita le maemong a thata a ka tlas'a thata.


Lipipipi tsa rona tsa lefatše tse ka tlas'a lefatše li fumaneha ka boholo bo fapaneng ho fihlela litlhoko tse khethehileng tsa morero oa hau. Hore na o beha phepelo e nyane ea metsi kapa mokhoa o mongata oa indasteri, re na le ntate oa indasteri bakeng sa hao. Sehlopha sa rona sa litsebi se ka fana ka boeletsi le tšehetso e lumellanang le ts'ehetso ho u thusa ho khetha lipeipi tse lumellanang hantle le litlhoko tsa hau.
Ha ho tluoa tsamaisong ea metsi a sekhukhu, o hloka pipi eo u ka e tšepang. Ka kaho e tsoetseng pele ea spinstaral e tsoetseng pele ea spinstaral, thepa ea boleng le ho bopalatsi ba lipeo tsa lefatše tse ka tlas'a lefatše li loketseng marang-rang a phepelo ea metsi. Tšoarella, ho tšepahala ebile ho bonolo ho kenya, Phala ena e tla emisa nako, phala ena e tla u fa khotso ea kelello le ts'ebetso e phahameng.
Lirope tsohle tsa semmuso tsa leholimo ke khetho e ntle ho mang kapa mang ea hlokang ho ba le boleng bo phahameng, ea tšepahalang le e tšoarellang ea metsi. Ka mosebetsi oa hae o tsoetseng pele oa seam le setsebiMetal Pipe Wellding, lipompo tsena e fana ka matla a mangata, ho fetoha le maemo le khatello ea maikutlo. Se ke oa inehela boleng ba sistimi ea metsi a lefatše - khetha lipei tsa lefatše ka tlas'a lefatše e le tharollo eo u ka e tšepang.