Uyawazi umahluko phakathi kwepleyiti eqengqelekayo ebandayo kunye nepleyiti eqengqeleyo eshushu yeshiti lentsimbi?Ungaqhathwa!!!

Umphezulu wepleyiti eqengqelekayo ineglosi ethile kwaye ivakala igudile, efana nekomityi yentsimbi eqhelekileyo esetyenziselwa amanzi okusela.2. Ukuba i-plate edibeneyo eshushu ayinayo i-pickled, ifana nomphezulu weentsimbi ezininzi eziqhelekileyo kwiimarike.Umhlwa onomhlwa ubomvu, kwaye umphezulu ongenamhlwa umfusa-mnyama (i-iron oxide).

Iinzuzo zokusebenza zeshiti eliqengqelekayo elibandayo kunye neshiti eliqengqelekayo elishushu zezi:

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(2) Ubungakanani obuncinci, eyona nto ibandayo ibandayo inokuqengqeleka i-0.001mm strip yentsimbi;Ukuqengqeleka okushushu ngoku kufikelela kubukhulu obuncinci be-0.78mm.

(3) Umgangatho ophezulu womphezulu, ipleyiti yentsimbi epholileyo inokuvelisa umphezulu wesipili;Umphezulu we-hot-rolled plate uneziphene ezifana ne-iron oxide kunye ne-pitting.

(4) Ishiti eliqengqelekayo linokuhlengahlengiswa ngokweemfuno zomsebenzisi weempawu zalo eziqhubayo njengamandla okuqina kunye neempawu zenkqubo ezifana neempawu zesitampu.

Ukuqengqeleka okubandayo kunye nokuqengqeleka okushushu zizinto ezimbini ezahlukeneyo zobuchwephesha bokuqengqeleka kwentsimbi, njengoko igama lisitsho, ukuqengqeleka okubandayo kukubopha intsimbi kwiqondo lobushushu begumbi, ubulukhuni bale ntsimbi bukhulu.Ukuqengqeleka okushushu kuxa intsimbi ibotshelelwa kunye kubushushu obuphezulu.Ishiti elishushu eliqengqelekayo linobulukhuni obuphantsi, ukusetyenzwa lula kunye ne-ductility elungileyo.Cold rolled sheet ubulukhuni iphezulu, processing kunzima noko, kodwa akukho lula deformation, amandla aphezulu.Amandla epleyiti eqengqelekayo eshushu asezantsi ngokwentelekiso, umgangatho womphezulu phantse (i-oxidation, ukugqiba okuphantsi), kodwa iplastiki elungileyo, ipleyiti eshinyeneyo ngokubanzi, ipleyiti eqengqelekayo ebandayo: amandla aphezulu, ukuqina okuphezulu, ukugqiba okuphezulu komphezulu, ipleyiti encinci ngokubanzi, ingasetyenziswa njenge ipleyiti yokunyathela.Ipleyiti yentsimbi eshushu eqengqelekayo, iipropathi zoomatshini zingaphantsi kakhulu kulungiso olubandayo, kwaye zingaphantsi kokwenziwa kokwenziwa, kodwa zinokuqina okungcono kunye ne-ductility.Ipleyiti yentsimbi epholileyo eqengqelekayo ngenxa yomgangatho othile wokuqina komsebenzi, ukuqina okuphantsi, kodwa inokufezekisa umlinganiselo olungileyo wokuguquguquka, osetyenziselwa ukugoba amaqhekeza entwasahlobo abandayo kunye nezinye iindawo, kwangaxeshanye kuba indawo yesivuno isondele kumandla okuqina, ukusetyenziswa kwengozi akuqikeleli, xa umthwalo udlula umthwalo ovumelekileyo uxhomekeke kwiingozi.Ngokwenkcazo, i-ingot yensimbi okanye i-billet inzima ukukhubaza kunye nokusebenza kwiqondo lokushisa.Ifudumeza ngokubanzi ukuya kwi-1100 ~ 1250℃ ukuze iqengqeleke.Le nkqubo yokuqengqeleka ibizwa ngokuba yi-hot rolling.Uninzi lwentsimbi luqengqeleka ngokuqengqeleka okushushu.Nangona kunjalo, ngenxa yokuba umphezulu wentsimbi kulula ukuvelisa i-oxide sheet kubushushu obuphezulu, umphezulu wentsimbi eshushu esongwayo urhabaxa kwaye ubungakanani buguquguquka kakhulu, ngoko ke intsimbi enomgangatho ogudileyo, ubungakanani obuchanekileyo kunye neempawu ezilungileyo zoomatshini ziyafuneka, kwaye kushushu. iimveliso ezigqityiweyo ezigqityiweyo okanye iimveliso ezigqityiweyo zisetyenziswa njengemathiriyeli ekrwada emva koko ziveliswe ngendlela ebandayo yokuqengqeleka.Ukuqengqeleka kwiqondo lobushushu begumbi ngokuqhelekileyo kuqondwa njengokuqengqeleka okubandayo.Ukusuka kwindawo yokujonga isayensi yesinyithi, umda phakathi kokuqengqeleka okubandayo kunye nokuqengqeleka okushushu kufuneka ukwahlulwe ngobushushu bokuhlaziya.Oko kukuthi, ukuqengqeleka ngaphantsi kweqondo lobushushu recrystallization kubanda rolling, kwaye rolling ngaphezu ubushushu recrystallization kushushu rolling.Ubushushu bokuhlaziya intsimbi yi-450 ~ 600 ℃.Ukuqengqeleka okushushu, njengoko igama lisitsho, iindawo eziqengqelekayo zobushushu obuphezulu, ngoko ke ukuxhathisa kwe-deformation kuncinci, kunokufikelela kwi-deformation enkulu.Ukuthatha i-steel plate rolling njengomzekelo, ubukhulu be-billet eqhubekayo yokuphosa bu malunga ne-230mm, kwaye emva kokugqithisa kunye nokugqiba ukugqiba, ubukhulu bokugqibela bu-1 ~ 20mm.Kwangaxeshanye, ngenxa yokuba ubukhulu bomlinganiselo wepleyiti yentsimbi buncinci, ukuchaneka komgangatho uphantsi ngokwentelekiso, akukho lula ukuvela ingxaki yokumila, ngakumbi ukulawula isithsaba.I-microstructure kunye neempawu ze-mechanical ze-strip zentsimbi zingalawulwa ngokulawula ubushushu obujikelezayo, ubushushu bokuqengqeleka kunye nobushushu be-crimping.Ukuqengqeleka okubandayo, ngokuqhelekileyo akukho nkqubo yokufudumeza phambi kokuqengqeleka.Nangona kunjalo, ngenxa yokuba ubukhulu be-strip buncinci, kulula ukuvela ingxaki yokumila.Ngapha koko, emva kokuba kugqitywe imveliso ebandayo, ke ngoko, ukuze kulawulwe ukuchaneka komda kunye nomgangatho womphezulu wentsimbi yomtya, kusetyenziswa inkqubo edinayo kakhulu.Umgca wokuvelisa obandayo ude, izixhobo ezininzi, inkqubo enzima.Ngokuphuculwa kweemfuno zabasebenzisi malunga nokuchaneka komlinganiselo, ukumila kunye nomgangatho womphezulu wentsimbi yentsimbi, kukho iimodeli zolawulo ezingaphezulu, iinkqubo ze-L1 kunye ne-L2 kunye neendlela zokulawula iimilo kwindawo yokusila ebandayo kune-hot rolling mill.Ngaphezu koko, ubushushu be-roller kunye ne-strip nayo isalathiso esibalulekileyo solawulo.Iimveliso ezibandayo ziqengqiwe kunye nomgca wephepha lemveliso eshushu, ngumahluko phakathi kwenkqubo yangaphambili kunye nenkqubo elandelayo, iimveliso ezishushu ziqengqiwe zizixhobo ezibandayo zeemveliso eziqengqelekayo, ezibandayo ziqengqeleka emva kokuchola umatshini wentsimbi otyibilikayo usebenzisa ilitye lokusila, ukuqengqeleka. ukubumba ukusetyenzwa okubandayo, ubukhulu becala ukuqengqeleka ipleyiti eshinyeneyo eqengqelekayo ibe ncakasana yepleyiti eqengqelekayo epholileyo, Ngokuqhelekileyo njenge-3.0mm ipleyiti eshushu eqengqelekayo kumatshini eqengqelekayo inokuvelisa i-0.3-0.7mm yekhoyili ebandayo eqengqelekayo, umgaqo ophambili kukusebenzisa umgaqo wokukhupha deformation ngenkani.


Ixesha lokuposa: Oct-09-2021