Mokhoa oa ho hlahisa le mokhoa oa ho chesa tšepe ea tšepe ea ribbed

Mokhoa oa ho hlahisa le mokhoa oa ho chesa tšepe ea tšepe ea ribbed

Mokhoa oa morao-rao:

Mmarakeng oa hajoale oa rebar, hrb400e e ikarabella bakeng sa tse ling.Mokhoa oa ho matlafatsa microalloy ke mokhoa o ka sehloohong oa ho hlahisa hrb400e lefatšeng.Microalloy ke haholo-holo vanadium alloy kapa niobium alloy, e jang lisebelisoa tse ngata tsa alloy selemo se seng le se seng.Ka lebaka la mehloli e fokolang ea liminerale e nang le vanadium le niobium, phepelo ea likarolo tsena tsa alloy e tiile.Ka hona, haeba karolo ea alloy ea tšepe ea hrb400e e ka fokotseha, e tla hlahisa melemo e meholo ea moruo le ea sechaba.

Ho thekenoloji e teng, mohala oa tlhahiso ea lithapo tse peli ntle le ho fokotsa le ho fokotsa boholo ba leloala ka kakaretso o amohela vanadium alloy e matlafatsang ho hlahisa hrb400e, 'me boholo ba liperesente tsa vanadium ke 0.035% ho isa ho 0.045%.

Patent ea Sechaena cn104357741a e senola mofuta oa tšepe ea tšepe e hananang le tšisinyeho ea lefatše ea hrb400e le mokhoa oa eona oa tlhahiso.Ka mokhoa ona, sehlahisoa se feliloeng se hlahisoa ke leloala le fokotsang le ho fokotsa boholo, le ka etsang bonnete ba hore tšepe ea ho qetela e phuthoa ka mocheso o tlase oa 730 ~ 760 ℃ ho fumana Bakeng sa lijo-thollo tse ntle, mokhoa ona ha o loketse melapo ea tlhahiso. ntle le ho fokotsa boholo ba tshilo.Patent ea Sechaena cn110184516a e senola mokhoa oa ho lokisa oa terata e phahameng φ6mm~hrb400e sekoti se kopantsoeng.Ka thuso ea matla a matla a ho roala ha thepa, mocheso o tlase oa mocheso o qala ho tloha mocheso oa mocheso, 'me tlhahiso ntle le microalloying e phethahala.Bothata ba mokhoa ona ke hore Litlhoko tsa matla le ts'ebetso ea motlakase ea lisebelisoa tsa ho roala ka thata le tse mahareng li batla li phahame, haholo-holo bakeng sa mohala oa tlhahiso ea torsion rolling, e fokotsang bophelo ba liteko tsa lisebelisoa le ho eketsa litšenyehelo tsa tlhokomelo ea thepa. thepa, le matla a tlhahiso ea terata e phahameng φ6mm~hrb400e coil e hlahisoang ke mokhoa ona ke tlatsetso.Bongata bo sa lekaneng, ho thata ho netefatsa sekhahla sa mangolo a thuto.

Lintlha tsa ts'ebetso ea tekheniki:

Tlhahiso ea hona joale e ikemiselitse ho fana ka mokhoa oa ho hlahisa litšepe tse chesang tse nang le likhopo, haholo-holo mokhoa oa ho hlahisa likhofu tse kolobisitsoeng tse chesang bakeng sa terata e phahameng φ8~φ10mm~hrb400e, e hlōlang mefokolo e boletsoeng ka holimo ea bonono ea pele le ho fokotsa tlhahiso. litšenyehelo.

Sekema sa tekheniki sa tlhahiso ea hona joale:

Mokhoa oa tlhahiso ea tšepe ea tšepe e kolobisitsoeng e chesang, tlhaloso ea molamu oa tšepe ea ribbed ke φ8 ~ φ10mm, 'me mokhoa oa theknoloji o kenyelletsa ho futhumatsa - billeting - rolling rough - rolling medium - cooling - pre-finishing - cooling - finishing - cooling - ho ohla - Tafole ea rolara e pholileng ka moea — pokello ea li-coil — ho pholile butle;karolo ea boima ba lik'hemik'hale tsa tšepe ke c = 0.20% ~ 0.25%, si = 0.40% ~ 0.50%, mn = 1.40% ~ 1.60%, p≤0.045%, s ≤0.045%, v = 0.015% ~ 0.020%, tse ling kaofela ke Fe le likarolo tsa litšila tse ke keng tsa qojoa;mehato ea bohlokoa tshebetso kenyeletsa: mocheso sebōpi ke 1070 ~ 1130 ℃, prefinishing therola mocheso ke 970 ~ 1000 ℃, 'me ho qeta ho bilika mocheso ke 840 ~ 1000 ℃.880℃;ho beha mocheso 845 ~ 875 ℃;mocheso oa ho qetela oa ho roala o ka tlase ho mocheso oa recrystallization oa libaka tsa austenite;ho pholisa ka potlako ka fan holim'a tafole e pholileng ea moea, molumo oa moea ke 100%;Mocheso oa sekoahelo ke 640 ~ 660 ℃, mocheso oa sekoahelo sa ho boloka mocheso ke 600 ~ 620 ℃, 'me nako ea sekoahelo sa ho boloka mocheso ke 45 ~ 55s.

Molao-motheo oa ho qaptjoa: mocheso oa mocheso oa 840-880 ℃, lijo-thollo tsa austenite li lelefalitsoe ke deformation ea rolling, empa recrystallization ha e etsahale.Leha ho le joalo, lihlopha tsa deformation li hlahisoa ka har'a lithollo tsa austenite, 'me lipheletsong tsa lihlopha tsa deformation hangata li moeling oa lijo-thollo, hape ho na le lihlopha tsa deformation ka har'a lijo-thollo e le meeli e hlakileng ea lijo-thollo ho arola lithollo tsa austenite tse telele.Nakong ea phetoho ho tloha ho austenite ho ea ho ferrite, moeli o molelele oa lijo-thollo oa austenite le sebaka se bonahalang sa lijo-thollo se sebetsa e le libaka tsa nucleation bakeng sa ferrite, e leng se bakang ntlafatso ea ferrite ka mor'a phetoho.Mocheso o tlase oa ho thetheha ka leloala la ho qetela o fokotsa boima ba liloala tse kolobang le tse bohareng le liloala tsa pele ho ho qetela le ho eketsa bophelo ba ts'ebeletso ea lisebelisoa.

Liphello tse molemo tsa ho qaptjoa ke tse latelang: ka ho eketsa palo e nyenyane ea v bakeng sa ho matlafatsa microalloy, matla a lihlahisoa a ntlafatsoa, ​​v le c li etsa carbides, tse nang le pula nakong ea ho pholile ka mor'a ho koloha, 'me li bapala karolo ea ho matlafatsa pula. .Molamu oa mohala o chesang oa ho qaptjoa o na le matla a matla a 600-700mpa, matla a tlhahiso ea 420-500mpa, karolelano ea lihlahisoa tse ka bang 450mpa, le agt> 10%, e tiisang hore ho na le moeli o lekaneng.Matla a lihlahisoa a tsitsitse, 'me sekhahla sa ho tšoaneleha ha ts'ebetso se ka holimo ho 99%.Moqapi ona o rarolla bothata ba hore leloala la twist rolling le thata ho etsa rolling ea mocheso o tlase, le fokotsa litšenyehelo molemong oa ho netefatsa hore tlhahiso ea tlhahiso ha e fokotsehe, 'me e tlisa melemo e phahameng ea moruo.

Mekhoa e qaqileng

Likahare tsa boiqapelo ba hona joale li hlalositsoe hape ka tlase hammoho le lipapiso.

Mokhoa oa ho hlahisa sehlopha sa terata e phahameng φ8mm~φ10mmhrb400e likhofu tse koetsoeng.Tshebetso ea ho roala ke: mocheso o tsoelang pele: 1080 ~ 1120 ℃, ho kena pele ho qeta ho roala 1030 ~ 1060 ℃, ho kenya mocheso oa ho qetela: 850 ~ 870 ℃, mocheso o ohiang: 850 ~ 870 ℃, mocheso oa moea oa fan 100%, ho kenya sekoahelo sa insulation. mocheso 640 ~ 660 ℃, 600 ~ 620 ℃ ho tsoa sekoahelong sa ho boloka mocheso, nako e sekoahelong sa ho boloka mocheso ke 45 ~ 55s, 'me e pholile ka tlhaho.Sebopeho sa lik'hemik'hale tsa molamu oa terata oa ho qaptjoa ha hona joale o bontšoa ho Lethathamo la 1, 'me thepa ea mochine ea molamu oa mohala oa ho hlahisa moqapi oa hona joale o bontšoa ho Lethathamo la 2.

Motsoako oa lik'hemik'hale (wt%) oa molamu oa mohala oa mohlala oa tafole

Letlapa la 2 Lintho tsa mochini tsa mohlala lithupa tsa terata

Matla a tlhahiso ea terata e phahameng φ8mm ~ φ10mmhrb400e likhofu tse koetsoeng tse hlahisoang ke mokhoa oa ho qaptjoa li ka har'a 420 ~ 500mpa, agt e ka holimo ho 10%, tekanyo ea tlhahiso ea matla e ka holimo ho 1.35, 'me mohaho oa metallographic o atisa ho ferrite. le perela., ts'ebetso e tsitsitseng, matla a lekaneng a chai le agt margin, katleho ea ts'ebetso ena ke ea bohlokoa haholo ho fokotsa litšenyehelo tsa tlhahiso le ho eketsa phaello bakeng sa mela e 'meli ea tlhahiso ea torsion e nang le lisebelisoa tsa khale.

Lintlha tsa Tekheniki:
1. Mokhoa oa tlhahiso ea tšepe ea tšepe e chesang e kolobisitsoeng, tlhaloso ea molamu oa terata ke φ8mm~φ10mm, 'me mokhoa oa theknoloji o kenyelletsa ho futhumatsa - billeting - rolling rough - rolling medium - cooling - pre-finishing - cooling - finishing - cooling - spinning. – moea Cold roller tafole—ho bokella coil—ho pholile butle, ho tšoauoa ka hore: the chemical composition mass percentage of steel is c=0.20%~0.25%, si=0.40%~0.50%, mn=1.40%~1.60%, p≤ 0.045 %, s≤0.045%, v=0.015%~0.020%, tse ling kaofela ke lintho tse litšila tse ke keng tsa qojoa;mehato ea bohlokoa ea ts'ebetso e kenyelletsa: mocheso oa ho phunya ke 1070 ~ 1130 ° C, mocheso oa pele o qeta ke 970 ~ 1000 ° C, 'me ho qeta ho qeta ho etsoa.mocheso ke 840 ~ 880 ℃;mocheso o ohiang ke 845 ~ 875 ℃;mocheso oa ho qetela oa ho roala o ka tlase ho mocheso oa recrystallization oa libaka tsa austenite;e pholile ka potlako ke fan holim'a tafole e pholileng ea moea, 'me molumo oa moea ke 100%;tafole ea rolara e sirelelitsoe ka ho koala sekoaelo sa sekoaelo, mocheso oa ho kenella ka sekoaelong ke 640 ~ 660 ℃, 'me mocheso oa ho tsoa sekoaelong sa insulation ke 600 ~ 620 ℃,' me nako ea sekoaelo sa insulation ke 45 ~ 55s.

Kakaretso ea tekheniki
Mokhoa oa tlhahiso ea tšepe ea tšepe e kolobisitsoeng ka tšepe e chesang e kolobisitsoeng ka terata e chesang ke Φ8mm~Φ10mm, karolo ea boima ba lik'hemik'hale ea tšepe ke C = 0.20% ~ 0.25%, Si = 0.40% ~ 0.50% , Mn = 1.40% ~ 1.60%, P≤0.045%, S≤0.045%, V=0.015% ~ 0.020%, tse ling kaofela ke Fe le likarolo tse sa qojoeng tsa litšila;mokhoa oa ho roala ke: mocheso oa sebōpi ke 1070 ~ 1130 ℃, 'me ho qetela ho etsoa.Mocheso oa mocheso ke 970 ~ 1000 ℃, mocheso oa ho qetela ke 840 ~ 880 ℃;mocheso o ohiang ke 845 ~ 875 ℃;mocheso oa ho qetela oa ho roala o ka tlase ho mocheso oa recrystallization oa sebaka sa austenite;%;Ka mor'a ho koala sekoahelo sa sekoahelo sa rolara, mocheso oa ho kenya sekoahelo sa ho kenya letsoho ke 640 ~ 660 ℃, 'me mocheso oa ho tsoa ka sekoahelo sa ho pata ke 600 ~ 620 ℃,' me nako ea sekoahelo sa ho pata ke 45 ~ 55s.Ka ho eketsa palo e nyane ea V alloy le ho qeta ho phalla ka mocheso o tlaase, ho qaptjoa ha ho tiise feela ts'ebetso e tsitsitseng ea lisebelisoa, empa hape ho fokotsa lihlahisoa tsa alloy le litšenyehelo.