Pipe ea Boleng bo Phahameng ea Bophara bo Boholo
Re hlahisa liphaephe tsa boleng bo holimo tsa bophara bo boholo, e leng tharollo e nepahetseng ho fihlela litlhoko tse fetohang kamehla tsa kaho le nts'etsopele ea meralo ea motheo. Ha indasteri e ntse e bona keketseho e kholo ea boholo ba liphaephe tsa boholo ba liphaephe tsa boholo, tlhoko ea thepa e matla le e tšepahalang ha e so ka e ba ea bohlokoa hakana. Liphaephe tsa rona tsa tšepe tse bophara bo boholo tse tšetsoeng ka spiral tse entsoeng ka tšepe li etselitsoe ho tobana le liphephetso tsena, ho netefatsa ts'ebetso e phahameng le ho tšoarella lits'ebetsong tse fapaneng.
E etselitsoe ho mamella mathata a kaho e boima, boleng ba rona bo holimo,liphaephe tsa ho bokella tse bophara bo boholofana ka matla le botsitso bo hlokahalang bakeng sa tšehetso ea motheo. Theknoloji ea ho tjheseletsa e potolohang e sebelisoang ts'ebetsong ea rona ea tlhahiso e netefatsa sebopeho se se nang sekoli le se matla, e fokotsa kotsi ea ho hloleha le ho eketsa bophelo ba ts'ebeletso. Hore na u ameha mererong ea khoebo, ea bolulo kapa ea meralo ea motheo, liphaephe tsa rona tsa ho bokella ke khetho e phethahetseng ho fihlela litlhoko tsa hau.
Tlhaloso ea Sehlahisoa
| E tloaelehileng | Sehlopha sa tšepe | Sebopeho sa lik'hemik'hale | Matlo a ho thapolla | Teko ea Tšusumetso ea Charpy le Teko ea ho lahla boima ba 'mele | ||||||||||||||
| C | Si | Mn | P | S | V | Nb | Ti | CEV4)（%） | Matla a tlhahiso ea Rt0.5 Mpa | Matla a Tensile a Rm Mpa | Rt0.5/ Rm | （L0=5.65 √ S0）Ho lelefatsa A% | ||||||
| boholo | boholo | boholo | boholo | boholo | boholo | boholo | boholo | Tse ling | boholo | motsotso | boholo | motsotso | boholo | boholo | motsotso | |||
| 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 tšusumetso ea Charpy: Matla a monyang tšusumetso ea 'mele oa phaephe le seam ea weld a tla lekoa joalo ka ha ho hlokahala tekanyetsong ea pele. Bakeng sa lintlha tse qaqileng, sheba tekanyetso ea pele. Teko ea ho taboha ha boima ba lerotholi: Sebaka sa ho kuta se khethiloeng | |
| 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 mekgahlelo yohle ya tshepe, Mo e ka ba ≤ 0.35%, tlasa konteraka. | ||||||||||||||||||
| Mn Cr+Mo+V Cu+Ni4）CEV=C+6 + 5 + 5 | ||||||||||||||||||
Molemo oa sehlahisoa
E 'ngoe ea melemo e meholo ea ho sebelisa liphaephe tse nang le bophara bo boholo ke bokhoni ba tsona ba ho mamella meroalo e boima. Liphaephe tsena li etselitsoe ho mamella khatello e kholo, e leng se etsang hore li be ntle bakeng sa lits'ebetso tse tebileng tsa motheo mererong e meholo ea kaho. Bophara ba tsona bo boholo bo boetse bo eketsa ho falla ha mobu, ka hona ho ntlafatsa botsitso le ho fokotsa mathata a ho rarolla. Ho phaella moo, ts'ebetso ea ho tjheseletsa e potolohang e sebelisoang tlhahisong ea liphaephe tsena e netefatsa tlamo e matla le e tšoarellang, e fokotsa kotsi ea ho hloleha ha sebopeho.
Bofokoli ba Sehlahisoa
Litšenyehelo tsa ho hlahisa phaephe ea boleng bo holimo ea bophara bo boholo li ka ba holimo ho feta likhetho tsa setso, tse ka amang lichelete tsa projeke.
Ho phaella moo, tshebetso ya ho kenya e ka ba e rarahaneng le ho ja nako e ngata, e hlokang disebediswa tse ikgethang le basebetsi ba nang le bokgoni. Haeba e sa laolwe hantle, sena se ka baka tieho ho nako ya diprojeke.
Kopo
Lefatšeng le ntseng le hola la kaho le nts'etsopele ea meralo ea motheo, tlhoko ea thepa e matla ke ea bohlokoa ka ho fetisisa. Thepa e 'ngoe e fumaneng tlhokomelo e kholo ke phaephe ea boleng bo holimo, e bophara bo boholo. Ha merero ea kaho e ntse e eketseha ka boholo le ho rarahana, tlhoko ea litharollo tse kholo le tse tšoarellang haholoanyane tsa ho bokella e ba ea bohlokoa ka ho fetisisa.
Ka ntshetsopele e potlakileng ya merero ya ho aha ditoropo le meralo ya motheo, bophara ba diphaephe tsa ho kenya dipeipi bo ntse bo eketseha ho fihlela ditlhoko tsa boenjiniere ba sejwalejwale.phala ea tšepe e bophara bo boholoLiqubu lia hlokahala ho fana ka tšehetso le botsitso bo hlokahalang bakeng sa meaho e fapaneng joalo ka marokho, meaho le libaka tsa likepe. Liphaephe tsena li etselitsoe ho mamella meroalo e meholo le maemo a thata a tikoloho, ho netefatsa nako e telele le polokeho ea merero eo ba e tšehetsang.
Ha indasteri ea kaho e ntse e tsoela pele ho fetoha, bohlokoa ba phaephe ea boleng bo holimo ea bophara bo boholo bo ke ke ba feteletsoa. Boitlamo ba rona ba boleng le boqapi bo netefatsa hore re lula re le molekane ea tšepahalang indastering ea kaho, re fana ka thepa ea bohlokoa e hlokahalang bakeng sa meralo ea motheo ea nakong e tlang. Hore na u ameha morerong o moholo kapa morerong o monyenyane oa kaho, liphaephe tsa rona tsa bophara bo boholo li u fa matla le ts'epo eo u e hlokang.
Lipotso Tse Botsoang Khafetsa
P1: Phaephe e kgolo ya ho bokella dibopeho ke eng?
Liphaephe tse nang le bophara bo boholo ke meaho e silindara e sebelisetsoang ho tšehetsa meroalo e boima mererong ea kaho. Bophara ba tsona bo eketsehileng bo fana ka bokhoni bo boholo ba ho jara meroalo 'me bo loketse metheo e tebileng maemong a thata a mobu.
P2: Hobaneng o lokela ho kgetha diqubu tsa diphaephe tsa tshepe tse weldisitsweng ka spiral?
Liphaephe tsa tšepe tse tjheseditsweng ka ho potoloha li tsebahala ka matla a tsona a phahameng le ho tšoarella. Ts'ebetso ea ho tjheseletsa ka ho potoloha e netefatsa moalo o tsoelang pele, o ntlafatsang botšepehi ba sebopeho sa phaephe. Mokhoa ona o boetse o lumella tlhahiso ea liphaephe tsa tšepe tse bophara bo boholo ho fihlela litlhoko tse ntseng li hola tsa kaho ea sejoale-joale.
P3: Liphaephe tsena li etsoa hokae?
Liphaephe tsa rona tsa boleng bo holimo tsa ho kenya lipeipi tse kholo tse bophara bo holimo li etsoa Cangzhou, Profinseng ea Hebei. Feme ea rona e thehiloe ka 1993 'me e akaretsa sebaka sa lisekoere-mithara tse 350,000 ka thepa eohle ea RMB limilione tse 680. Re na le basebetsi ba inehetseng ba 680 ba inehetseng ho hlahiseng litharollo tsa boleng bo holimo tsa ho kenya lipeipi tse fihlelang litlhoko tse thata tsa indasteri ea kaho.
