General purpose tsawg carbon steel hlau
Yog qhov loj tshaj plaws tawm los ntawm hlau nyob rau hauv ntau yam, nws txoj kab nruab nrab ntawm 0.16 ~ 10mm. Nws tuaj yeem muab faib ua ob sab thiab saum ob sab, raws li txoj cai yog faib ua txias thiab ntuag ob. Cold drawn steel tensile lub zog, ua siv dav yog% 26le; 635 ~ 1000MPa; ntsia hlau nrog% 26le; 540 ~ 1320MPa. Qhov loj dua lub xaim hlau, lub zog tensile me zog. Tab sis qhov kev tsim kho ntawm txias twv hlau hlau tensile lub zog ntawm tsis pub tsawg tshaj 635MPa. Lub zog tensile ntawm annealed steel hlau yog nruab nrab ntawm 295 thiab 500 MPa. Xaiv cov ntaub ntawv raw, los ntawm cov txij nkawm uas yooj yim ntawm lub xaim los xav, kom tsis txhob muaj lub zog tensile zog, xaim kab ntawm lub me me cov ntsiab lus yuav tsum qis; tab sis qhov loj tshaj ntawm tus ntsia thawv nrog cov nyhuv, koj yuav tsum tau siv cov ntsiab lus siab, Yog li ntawd cov hlau hlau nyob rau hauv cov punch thaum dabtsi yog khoov. Feem ntau hauv cov khoom siv tsis yog ntsia hlau nrog lub phom hlau hlau, tus pas nrig hlau yuav siv cov neeg dag zog (saib cov pas nrig pas nrig ua haujlwm) thiab tsis muaj txheej txheem kho (saib lubrication carrier) kom rub tawm. Nyob rau hauv cov zus ntawm cov ntsia hlau los yog steel hlau, vim nws cov kev xav tau zoo tshaj plaws yog ntau dua, feem ntau lub tshuab tom qab cov neeg kho tshuab poob tom qab me ntsis pickling thiab los ntawm kev daj thiab kua qaub txheej kho, kom rub tawm. Raws li cov uas tsis muaj carbon steel hlau yas, cov deformation kuj me me, yog li rub ib daim duab thaum txo tus nqi txo (saib qhov txo qhov txo nqi) yuav tsum tiav, mus txog 95% los yog li ntawd. Tus nqi txo rau txhua kis yog feem ntau% 26le; 35%. Kev siv qes hluavtaws qis nyob hauv lub nkev ua ntej qhov kev kho tshav kub los yog kos duab nruab nrab ntawm cov kev kho kub nruab nrab, feem ntau siv cov tshuab ua kom rov zoo dua qub thiab siv lub tshuab hluavtaws ua kom tawg thiab taws ua kom tawg rau hauv ob txoj kev. Nruam cov cua sov ua kom sov thiab sab nraud kub-dip galvanizing los yog cov kab kos sab hauv ntawm cov kab nruam tas mus li; zoo rauv taws ua kom zoo yog siv ua haujlwm tsis siv tas li ntawm txoj kab ntau lawm.
Galvanized qes carbon steel hlau rau kev sib txuas lus overhead
Lub cev tsis txaus ntseeg tau nruj heev, yog li cov tshuaj lom neeg muaj pes tsawg leeg ntawm raw cov ntaub ntawv yuav tsum xyuas kom meej tias cov xaim xov tooj tiv thaiv tau tsim nyog. Cov hlau ntim kho, kev ntsuas thiab kev kho cua sov thiab kev siv cov qis carbon hlau yog zoo li, tab sis yuav tsum muaj cov txheej txheem zinc tuab, thiab qee tus nyob hauv cov khoom siv qis, tom qab cov xaim xaim hlau ntxig rau chromic acid, sulfuric acid Thiab nitric acid nyob rau hauv lub tov tov, yog li hais tias qhov saum npoo ntawm zinc txheej rau tsim ib tug zaj sawv los yog lub teeb daj, lub teeb ntsuab, lub teeb liab thiab lwm yam sib xyaw xim passivation film mus ntxiv txhim kho corrosion ntawm steel hlau. Galvanized hlau xaim rau kev txheeb ze. Tiav tensile lub zog ntawm 345 ~ 490MPa armored cable galvanized qes carbon hlau xaim kuj yuav tsum tau zinc txheej tiaj, thiab qee cov kuj yuav tsum tau passivation tom qab galvanizing.
Tseem ceeb ntawm kev siv qis carbon steel hlau
Muaj ob hom kev du thiab galvanized. Galvanized hlau xaim zinc thinner. Lub zog tensile ntawm tus hlau steel hlau yog% 26ge; 390MP. Lub zog tensile ntawm galvanized steel xaim.
High quality tsawg carbon cov hlau steel hlau
Ua los ntawm cov pa sib xyaw hlau, xa hauv qhov mob los yog muag muag. Hardness ntawm cov hlau tensile lub zog ntawm 540 ~ 980MPa; mos lub xeev xaim tensile lub zog ntawm 440 ~ 785MPa, qhov kev txwv uas tau txiav txim los ntawm cov hlau thiab cov kab hlau. Tshooj hla ntawm cov xaim hlau kheej kheej, square thiab hexagonal. Ntawd lub xeev ntawm cov hlau yog muab faib ua ob hom: txias twv thiab nyiaj. Silver bright wire yuav tsum muaj qhov siab dua qhov dav thiab qhov zoo ntawm qhov chaw, qhov chaw du thiab ci iab, tsis siv qhov teeb meem ntawm qhov teeb meem. Qhov kab ntawm lub xaim tau muab xa tuaj hauv lub xeev zaub mov feem ntau yog 1 hli lossis tsawg dua.
Bearing retainer thiab txias forging rau tsawg carbon cov hlau steel hlau
Yog ua los ntawm riveting steel. Qhov qis ntawm kev sib tw ntawm hlau yuav tsum tsis muaj shrinkage, npuas, stratification, nrib pleb thiab tsis yog xim hlau inclusions. Qhov lub cheeb ntawm lub xaim rau kab tuav cov kabmob yog o. 75 ~ 12. Omm, tensile lub zog ntawm 390 ~ 735MPa, tus xov tooj qhov loj thiab qhov ntim zoo ntawm qhov siab tshaj ntawm lub xeev mob khaub thuas lossis npuaj (xaim pob zeb diameter 26%; 2mm). Txias kev sib tsoo kab yog feem ntau yog ~ 16ram, kuj yuav tsum muaj qhov siab dua qhov siab, qhov chaw zoo thiab lub koom haum loj loj, lub zog tensile ntawm 420 ~ 735MPa. Ncauj tsawg dua thiab sib npaug li 2mm ntawm cov hlau mus ntsuam xyuas qhov kev sib tshooj lus, nws tus nqi yuav tsum tsawg tshaj 35% mus rau 50%. Ntsuas loj dua thiab sib npaug li 3 hli ntawm cov hlau, tiam sis tseem yuav ua rau kev sib tw txias, qhov kev xav tau ntawm cov khaub thuas txias rau qhov siab thawj ntawm qhov qauv 26divide; thaum tsis tawg thiab kab nrib pleb. Lub microstructure ntawm lub hlau yuav tsum ferrite thiab spherical pearlite, rau no cov hlau pas los yog los ntawm cov hlau pas nrig tom qab cov khoom ua tiav cov khoom siv ua kheej kheej kheej. Txhawm rau kom tau zoo zoo thiab koom haum spheroidized, los txhim kho lub toughness ntawm steel hlau, zus ntawm cov hlau forging hlau yog feem ntau siv rau hauv cov kab uas loj lub kav hlau los txhawm rau txo tus nqi tag nrho thiab tus naj npawb ntawm nruab nrab kev sib tw. Sab saum npoo zoo ntawm lub khaub thuas forged steel hlau kuj muaj feem xyuam rau qhov zoo ntawm pickling, thiab acidity ntawm xaim yog txo los ntawm pickling thiab pickling. Txhawm rau tiv thaiv kom tsis txhob muaj cov kab mob hydrogen ua rau los ntawm hydrogen embrittlement thiab cuam tshuam txog kev sib sib zog kho ntawm qhov xaim, tom qab pickling rau tag nrho ci. Tiav tiav daim duab 134, txhawm rau kom muaj qhov zoo dua nto zoo, yuav tsum tau txais ib qho kev sib tw me me txo tus nqi. Cov khoom tiav yog qhov tsawg tshaj li ntawm 60%, kom paub tseeb tias kev ua kom txias.
Cov pa roj carbon (carbon) yog ua los ntawm cov pa roj carbon monoxide hlau thiab muab xa hauv lub xeev mob khaub thuas. Rau cov cuab yeej vuam hlau, yuav tsum txo nws cov ntsiab lus ntawm hydrogen, kom tiv thaiv tau cov kab nrib pleev rau lub weld. Rau qhov kawg no, qhov uas yuav tsum muaj ntawm cov hlau xaim huv, tsis txuas nrog cov khoom siv los txo cov vuam hlau thaum lub diffusion ntawm cov ntsiab lus hydrogen. Tsis tas li ntawd, ib qho tsim nyog rau kev kos cov roj nplua nyeem kuj yog ib qho tseem ceeb kom tau txais cov kab tsis muaj hluav taws xob uas tsis muaj hluav taws xob.
