Tsamaisong ea morao-rao ea indasteri, li-coil tsa tšepe tse chesang tse chesang ke lisebelisoa tsa motheo, 'me mefuta-futa ea tsona ea mehlala le liphapang tsa ts'ebetso li ama ka ho toba tataiso ea tsoelo-pele ea liindasteri tse tlaase. Mefuta e sa tšoaneng ea li-coil tsa tšepe tse chesang tse chesang li bapala karolo e ke keng ea fetoha masimong a kaho, likoloi, matla, joalo-joalo ka lik'hemik'hale tsa bona tse ikhethang le thepa ea mochine. Lintlha tse latelang li tla shebana le ho hlahloba mefuta ea li-coil tsa tšepe tse chesang tse nang le tlhokahalo e phahameng ka ho fetisisa ea 'maraka le liphapang tsa tsona tsa mantlha.
Matla a Mantlha a Mantlha: Q235B le SS400
Q235B ke tšepe e sebelisoang ka ho fetesisa ea khabone e tlase naheng ea China, e nang le khabone e ka bang 0.12% -0.20%, 'me e na le polasetiki e ntle le thepa ea ho cheselletsa. Matla a tlhahiso ea eona ke ≥235MPa mme e sebelisoa haholo ho aha liforeimi, litšehetso tsa borokho le likarolo tse akaretsang tsa mochini. Lefapheng la kaho, li-I-beams, li-channel steels le litšepe tse ling tse entsoeng ka li-coil tsa Q235B tse chesang tse chesang li etsa chelete e fetang 60%, e tšehetsang marapo a mehaho ea litoropo.
SS400 ke tšepe ea sebopeho sa khabone e sebelisoang machabeng e nang le matla a ts'oanang le Q235B, empa taolo e thata ea sebabole le phosphorus le boleng bo holimo. Lefapheng la kaho ea likepe, li-coil tsa SS400 tse chesang li sebelisoa hangata bakeng sa likarolo tsa sebopeho sa sekepe. Ho hanyetsa ho bola ha eona metsing a leoatle ho molemo ho feta tšepe e tloaelehileng ea carbon, ho netefatsa polokeho ea maeto a leoatle.
Baemeli ba matla a phahameng: Q345B le Q960
Q345B ke tšepe e matla e tlase e nang le alloy e phahameng e nang le 1.0% -1.6% ea manganese e ekelitsoeng, 'me matla a lihlahisoa a ka holimo ho 345MPa. Ha e bapisoa le Q235B, matla a eona a eketsehile ka hoo e ka bang 50%, ha e ntse e boloka cheseletso e ntle. Boenjiniere ba borokho, li-box girders tse entsoeng ka li-coil tsa tšepe tse chesang tsa Q345B li ka fokotsa boima ba 'mele ka 20%, li fokotsa haholo litšenyehelo tsa boenjiniere. Ka 2023, kaho ea borokho ba malapeng e tla ja lithane tse fetang limilione tse 12 tsa li-coil tse chesang tse chesang tsa Q345B, e leng karolo ea 45% ea kakaretso ea tlhahiso ea mofuta ona.
Joalo ka moemeli ea tloaelehileng oa tšepe e matla e phahameng haholo, Q960 e fihlella matla a tlhahiso ea ≥960MPa ka theknoloji ea microalloying (ho eketsa vanadium, titanium le lintho tse ling) le mekhoa ea ho pholisa e laoloang le e laoloang. Lefapheng la mechine ea boenjiniere, botenya ba letsoho la crane le entsoeng ka li-coil tse chesang tse chesang tsa Q960 li ka fokotsoa ho ea ka tlase ho 6mm, 'me matla a ho jara mojaro a eketseha ka makhetlo a 3, e leng se khothalletsang ntlafatso e bobebe ea lisebelisoa tse kang liepo le li-cranes.
Benchmark e Khethehileng: SPHC le SAPH340
SPHC ke sehlahisoa sa maemo a holimo har'a litšepe tsa carbon tse tlase tse chesang. Ka ho ntlafatsa mokhoa oa ho roala ho laola boholo ba lijo-thollo, bolelele bo fihla ho feta 30%. Indastering ea lisebelisoa tsa lapeng, li-coil tsa SPHC tse chesang li sebelisoa ho etsa matlo a sehatsetsing a compressor. Ts'ebetso ea eona e tebileng ea ho taka e netefatsa hore sekhahla se tšoanelehang sa sebopeho se rarahaneng sa bokaholimo se kobehileng se feta 98%. Ka 2024, tšebeliso ea li-coil tse kolobisitsoeng ka mocheso oa SPHC tšimong ea lisebelisoa tsa lapeng e tla eketseha ka 15% selemo le selemo ho ea ho lithane tse limilione tse 3.2.
Joaloka tšepe ea mohaho oa likoloi, SAPH340 e finyella ho leka-lekana pakeng tsa matla le boima ka ho eketsa 0.15% -0.25% carbon le trace boron. Ha ho etsoa liforeimi tse ncha tsa betri ea koloi ea matla, li-coil tsa SAPH340 tse kolobisitsoeng ka hot li ka mamella meroalo e matla e fetang 500MPa le ho fihlela litlhoko tsa ts'ebetso ea ho cheselletsa sebakeng. Ka 2023, karolo ea li-coil tse kolobisitsoeng tse chesang tsa mofuta ona tse sebelisoang likoloing tse ncha tsa motlakase li fihlile ho 70% ea likarolo tsa sebopeho sa betri.
| Mohlala | Yield Strength (MPa) | Elongation (%) | Maemo a Tloaelehileng a Kopo |
| Q235B | ≥235 | ≥26 | Mehaho ea kaho, mechine e akaretsang |
| Q345B | ≥345 | ≥21 | Marokho, lijana tsa khatello |
| SPHC | ≥275 | ≥30 | Lisebelisoa tsa lapeng, likarolo tsa koloi |
| Q960 | ≥960 | ≥12 | Mechini ea boenjiniere, lisebelisoa tsa boemo bo holimo |
Haeba u batla ho tseba haholoanyane ka tšepe, ka kopo tsoela pele ho ela hloko kapa ho ikopanya le rona.
SEHLOPHA SEHLOPHA
Aterese
Sebaka sa indasteri ea ntlafatso ea Kangsheng,
Setereke sa Wuqing, toropo ea Tianjin, China.
Mohala
Motsamaisi oa Thekiso: +86 153 2001 6383
Lihora
Mantaha-Sontaha: Tšebeletso ea lihora tse 24
Nako ea poso: Apr-02-2025