Liphaephe tsa Piling tsa Diameter tse kholo tse cheselitsoeng
Lilemong tsa morao tjena, tlhokeho ea liphaephe tsa tšepe tse bokellaneng liindastering tse fapaneng e eketsehile haholo.Ka kholo e potlakileng ea kaho le ntlafatso ea meaho, bophara ba peipi ea ho bokellae ntse e ba kgolo le ho feta.Ka hona, tlhokeho ya boleng bo phahameng spiral welded khōlō bophara tšepe phala liqubu tsa e ba bohlokoa haholo.
Khamphaning ea rona, re hlokometse tlhoko ena e ntseng e hola mme ra theha tharollo e holimo ho fihlela litlhoko tsa 'maraka - liqubu tsa rona tse kholo tsa lipeipi tsa tšepe tse bophara bo boholo.Liphaephe tsena tse bokellaneng li etselitsoe ho fana ka matla a mantlha a ho jara liteishene tsa metsi a tebileng, ho li etsa karolo ea bohlokoa morerong ofe kapa ofe oa kaho ea maoatleng.
Standard | Kereiti ea tšepe | Sebopeho sa lik'hemik'hale | Thepa ea tensile | Teko ea Charpy Impact le Teko ea ho theola boima ba 'mele | ||||||||||||||
C | Si | Mn | P | S | V | Nb | Ti | CEV4) (%) | Rt0.5 Mpa Ho hlahisa matla | Rm Mpa Tensile Matla | Rt0.5/ Rm | (L0=5.65 √ S0 )Elongation A% | ||||||
max | max | max | max | max | max | max | max | Tse ding | max | min | max | min | max | max | min | |||
L245MB | 0.22 | 0.45 | 1.2 | 0.025 | 0.15 | 0.05 | 0.05 | 0.04 | 1) | 0.4 | 245 | 450 | 415 | 760 | 0.93 | 22 | Teko ea phello ea Charpy: Matla a ho monya matla a 'mele oa liphaephe le seam ea weld e tla lekoa joalo ka ha ho hlokahala maemong a mantlha.Bakeng sa lintlha, sheba maemo a mantlha.Teko ea ho theola boima ba 'mele: Sebaka sa boikhethelo sa ho kuta | |
GB/T9711-2011 (PSL2) | L290MB | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | 1) | 0.4 | 290 | 495 | 415 | 21 | |||
L320MB | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | 1) | 0.41 | 320 | 500 | 430 | 21 | ||||
L360MB | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | 1) | 0.41 | 360 | 530 | 460 | 20 | |||||||
L390MB | 0.22 | 0.45 | 1.4 | 0.025 | 0.15 | 1) | 0.41 | 390 | 545 | 490 | 20 | |||||||
L415MB | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 1)2)3 | 0.42 | 415 | 565 | 520 | 18 | |||||||
L450MB | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 1)2)3 | 0.43 | 450 | 600 | 535 | 18 | |||||||
L485MB | 0.12 | 0.45 | 1.7 | 0.025 | 0.015 | 1)2)3 | 0.43 | 485 | 635 | 570 | 18 | |||||||
L555MB | 0.12 | 0.45 | 1.85 | 0.025 | 0.015 | 1)2)3 | Puisano | 555 | 705 | 625 | 825 | 0.95 | 18 | |||||
Hlokomela: | ||||||||||||||||||
1)0.015 ≤ Altot < 0.060;N ≤ 0.012;AI—N ≥ 2—1;Cu ≤ 0.25;Ni ≤ 0.30;Cr ≤ 0.30;Mo ≤ 0.10; | ||||||||||||||||||
2)V+Nb+Ti ≤ 0.015% | ||||||||||||||||||
3) Bakeng sa limaraka tsohle tsa tšepe, Mo e ka ≤ 0.35%, tlas'a konteraka. | ||||||||||||||||||
Mong Cr+Mo+V Ke+Ni4)CEV=C+6 + 5 + 5 |
Ea ronaspiral welded steel pipe qubuli etsoa ho sebelisoa theknoloji ea morao-rao ho mamella maemo a thata ka ho fetisisa.Ebang ke kaho ea borokho, kaho ea litsela, meaho e phahameng kapa ts'ebeliso efe kapa efe e hlokang motheo o tšepahalang, liphaephe tsa rona tsa ho bokella li loketse.
Se khethollang liphaephe tsa rona tsa ho bokellana ke boleng ba tsona bo ikhethang le ho tšoarella nako e telele.Re utloisisa bohlokoa ba motheo o matla le o tsitsitseng, ke ka lebaka leo re eang nako e telele ho netefatsa hore liphaephe tsa rona tse kholo tsa lipeipi tsa tšepe tse bophara li finyella litekanyetso tse phahameng ka ho fetisisa tsa bokhabane.Ka kaho ea bona e tiileng le theknoloji e tsoetseng pele ea ho tjheseletsa, liphaephe tsa rona tsa ho bokellana li hahiloe hore li tšoarelle, ho u fa khotso ea kelello ka ho tseba hore morero oa hau o tšehetsoa ke theknoloji e ntle ka ho fetisisa indastering.
Ho feta moo, liphaephe tsa rona tsa ho bokella li fumaneha ka boholo bo fapaneng ho fihlela litlhoko tse ikhethileng tsa projeke ea hau.Hore na o hloka phala e kholo e cheselitsoeng ka bophara kapa boholo bo nyane, re ka fana ka tharollo e phethahetseng ho litlhoko tsa hau.
Ho feta moo, re motlotlo haholo ka boitlamo ba rona ba ho boloka tikoloho.Lithako tsa rona tsa lipeipi tsa tšepe tse entsoeng ka tšepe tse entsoeng ka spiral li entsoe ka mekhoa e metle ea tikoloho, ho etsa bonnete ba hore ha li fihlelle feela litekanyetso tsa boleng bo holimo empa hape li latela melao e thata ea tikoloho.Sena se bolela hore ha u khetha liphaephe tsa rona tsa ho bokella, ha u tsetele feela ka tharollo ea motheo e ka tšeptjoang le e tšoarellang, empa hape u kenya letsoho bokamosong bo botala, bo tsitsitseng haholoanyane.
Ka kakaretso, liphaephe tsa rona tsa ho bokella, ho kenyelletsa le liphaephe tsa tšepe tse cheselitsoeng ka spiral, ke mohlala oa bokhabane indastering.Ka boleng ba bona bo ke keng ba lekanngoa, ho tšoarella le ho boloka tikoloho, ke khetho e phethahetseng bakeng sa morero leha e le ofe o hlokang motheo o tšepahalang.Ka hona, ha ho tluoa mabapi le litlhoko tsa hau tsa lipeipi tsa ho bokella, k'hamphani ea rona ke khetho ea hau e ntle ka ho fetisisa.Re ikemiselitse ho u fa tharollo e molemohali bakeng sa litlhoko tsohle tsa hau tsa mantlha.