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Lihlahisoa

Round Steels (Round Bar Steel)

Tšepe e chitja ke tšepe e telele, e tiileng e nang le sephara se chitja.Litlhaloso tsa eona li hlahisoa ka bophara, yuniti mm (mm), joalo ka "50mm" e bolela bophara ba tšepe e chitja ea 50mm.


Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Paramethara

Lebitso la Sehlahiswa

Tšoaea

Tlhaloso ↓mm Maemo a Phethahatso
Litšepe tsa sebopeho sa carbon Q235B 28-60 GB/T 700-2006
Matla a phahameng a tšepe ea tšepe e tlase

Q345B, Q355B

28-60 GB/T 1591-2008GB/T 1591-2018

Quality carbon structural tšepe

20#, 45#, 50#, 65Mn 28-60 GB/T 699-2015
Mohaho alloy tšepe 20Cr, 40Cr, 35CrMo, 42CrMo 28-60 GB/T 3077-2015
Bell e nang le tšepe 9SiCr (GCr15) 28-60 GB/T 18254-2002
Tšepe ea pinion 20CrMnTi 28-60 GB/T 18254-2002

Sehlopha ka mokhoa
Tšepe e chitja e khetholloa e le e chesang e phuthoang, e ferekaneng le e huloang ka serame.Tšepe e chitja e chesang e boholo ba 5.5-250 mm.Har'a tsona: 5.5-25 limilimithara tse nyenyane tse pota-potileng tšepe haholo-holo ho li-strips tse otlolohileng ka mekotla ea phepelo, e atisang ho sebelisoa bakeng sa ho matlafatsa mekoallo, liboutu le likarolo tse sa tšoaneng tsa mechine;Ts'epe e chitja e kholo ho feta 25 mm, e sebelisoang haholo ha ho etsoa likarolo tsa mochini, billet ea tšepe ea seamless, joalo-joalo.
E arotsoe ka sebopeho sa lik'hemik'hale
Tšepe ea carbon e ka aroloa ka tšepe e tlaase ea carbon, tšepe ea carbon e mahareng le tšepe e phahameng ea carbon ho latela sebopeho sa eona sa lik'hemik'hale (ke hore, carbon content).
(1) Tšepe e bonolo
E boetse e tsejoa e le tšepe e bonolo, carbon content ho tloha 0.10% ho 0.30% Low carbon steel e bonolo ho amohela mefuta e fapaneng ea ts'ebetso e kang ho forging, welding le cutting, hangata e sebelisoang ha ho etsoa liketane, rivets, bolts, shafts, joalo-joalo.
(2) Tšepe ea khabone e mahareng
Likahare tsa carbon 0,25% ~ 0.60% carbon steel.Ho na le tšepe ea sedative, tšepe ea semi-sedative, tšepe e belang le lihlahisoa tse ling.Ntle le khabone, e boetse e na le palo e nyane ea manganese (0.70% ~ 1.20%).Ho ea ka boleng ba sehlahisoa se arotsoe ka tšepe e tloaelehileng ea carbon structural le tšepe ea boleng bo phahameng ba carbon.Ts'ebetso e ntle ea mocheso le ho itšeha, ts'ebetso e mpe ea welding.Matla le boima li phahame ho feta tšepe e tlaase ea carbon, empa polasetiki le ho tiea li tlase ho feta tšepe e tlaase ea carbon.Lisebelisoa tse chesang tse chesang le tse batang li ka sebelisoa ka ho toba ntle le phekolo ea mocheso kapa ka mor'a phekolo ea mocheso.The medium carbon steel after quenching and tempering e na le thepa e ntle e phethahetseng ea mochini.Ho thatafala ka ho fetisisa ho fihletsoeng ke HRC55(HB538), σb ke 600 ~ 1100MPa.Kahoo boemong ba matla a mahareng a ts'ebeliso e fapaneng, tšepe ea carbon e bohareng ke eona e sebelisoang ka ho fetesisa, ntle le joalo ka thepa ea moaho, empa hape le palo e kholo e sebelisoang ha ho etsoa likarolo tse fapaneng tsa mochini.
(3) Tšepe e phahameng ea carbon
Hangata e bitsoa tool steel, carbon content e tloha ho 0.60% ho ea ho 1.70% 'me e ka thatafalloa le ho halefa.Lihamore le li-crowbars li entsoe ka tšepe e nang le carbon content ea 0.75%.Lisebelisoa tsa ho seha tse kang drill, tap, reamer, joalo-joalo li entsoe ka tšepe e nang le carbon content ea 0.90% ho ea ho 1.00%.

Ho hlophisoa ka boleng ba tšepe
Ho latela boleng ba tšepe e ka aroloa ka tšepe e tloaelehileng ea k'habone le tšepe ea boleng bo holimo.
(1) Litšepe tse tloaelehileng tsa k'habone, tse tsejoang hape e le tšepe e tloaelehileng ea khabone, li na le meeli e pharaletseng mabapi le litaba tsa khabone, mefuta ea ts'ebetso le litaba tsa phosphorus, sebabole le likarolo tse ling tse setseng.Chaena le linaheng tse ling, e arotsoe ka mekhahlelo e meraro ho ea ka maemo a ho fana ka tiisetso: Sehlopha sa A tšepe ke tšepe e nang le thepa e tiisitsoeng ea mochine.Litšepe tsa Sehlopha sa B (Litšepe tsa Sehlopha sa B) ke litšepe tse nang le lik'hemik'hale tse tiisitsoeng.Litšepe tse khethehileng (Litšepe tsa Sehlopha sa C) ke litšepe tse tiisang thepa ea mochini le metsoako ea lik'hemik'hale, 'me hangata li sebelisoa ha ho etsoa likarolo tsa bohlokoa tsa sebopeho.Chaena e hlahisa le ho sebelisa tšepe ea A3 ka ho fetisisa (tšepe ea Sehlopha sa A No.3) e nang le carbon content e ka bang 0.20%, e sebelisoang haholo-holo meahong ea boenjiniere.
Lisebelisoa tse ling tsa carbon structural li boetse li eketsa trace aluminium kapa niobium (kapa lintho tse ling tse etsang carbide) ho etsa likaroloana tsa nitride kapa carbide, e le ho fokotsa kholo ea lijo-thollo, ho matlafatsa tšepe, ho boloka tšepe.Chaena le linaheng tse ling, e le ho finyella litlhoko tse khethehileng tsa tšepe ea setsebi, metsoako ea lik'hemik'hale le thepa ea tšepe e tloaelehileng ea carbon e fetotsoe, kahoo ho ntshetsa pele letoto la tšepe e tloaelehileng ea carbon bakeng sa tšebeliso ea litsebi (e kang borokho, kaho, rebar, tšepe ea sekepe sa khatello, joalo-joalo).
(2) Ha ho bapisoa le tšepe e tloaelehileng ea carbon structural, litaba tsa sebabole, phosphorus le lintho tse ling tse se nang tšepe tse entsoeng ka tšepe ea boleng bo phahameng ba carbon li tlaase.Ho ea ka lik'habone le tšebeliso ea mefuta e fapaneng, mofuta ona oa tšepe o arotsoe ka mekhahlelo e meraro:
① Ka tlase ho 0.25% C ke tšepe e tlase ea khabone, haholo e nang le khabone e ka tlase ho 0.10% ea 08F,08Al, ka lebaka la ho taka ha eona e tebileng e tebileng le ho cheseha 'me e sebelisoa haholo joalo ka likarolo tse tebileng tsa ho taka joalo ka likoloi, makotikoti..... Etc. 20G ke thepa e ka sehloohong bakeng sa li-boilers tse tloaelehileng.Ntle le moo, tšepe e bonolo e boetse e sebelisoa haholo joalo ka tšepe ea carburizing, e sebelisoang ha ho etsoa mechini.
②0.25 ~ 0.60% C ke tšepe e bohareng ea k'habone, e sebelisoang haholo maemong a ho futhumatsa, ho etsa likarolo indastering ea tlhahiso ea mechini.
(3) Ho feta 0.6% C ke tšepe e phahameng ea carbon, e sebelisoang haholo ha ho etsoa liliba, likere, meqolo, joalo-joalo.
Ho latela dikahare tse fapaneng tsa manganese, e ka arolwa ka dikahare tse tlwaelehileng tsa manganese (0.25 ~ 0.8%) le dikahare tse phahameng tsa manganese (0.7 ~ 1.0% le 0.9 ~ 1.2%) sehlopha sa tšepe.Manganese e ka ntlafatsa ho thatafala ha tšepe, ea matlafatsa ferrite, ea ntlafatsa matla a tlhahiso, matla a ho tsitsa le ho roala khanyetso ea tšepe.Hangata, "Mn" e eketsoa ka mor'a boemo ba tšepe e nang le lintho tse ngata tsa manganese, tse kang 15Mn le 20Mn, ho e khetholla ho tloha ho tšepe ea carbon e nang le lintho tse tloaelehileng tsa manganese.


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