1.What yog cov yam ntxwv ua tau zoo ntawm DX52D substrate?
Cov khoom siv hauv paus tshuaj lom neeg
Cov pa roj carbon (c) Cov ntsiab lus: Qes roj av (C tsawg dua li lossis sib npaug rau 0.12%) yog qhov yooj yim. Cov ntsiab lus carbon ntau dua yuav ua rau cov hauv paus khoom siv tawv tawv thiab txo qis dua, ua rau nws raug kev tawg tau thaum lub sijhawm sib tw tom qab. Ntau dhau cov ntsiab lus muaj roj carbon monoxide tsawg, thaum txhim kho duas, tej zaum yuav ua rau muaj zog hauv qab ntawm "52" MPA cov khoom tsim tawm {{tus kabmob muaj peev xwm.
Cov neeg tawg nkoj (S, P): Sulfur (s) ua rau "kub brittleness" hauv cov hlau, ua rau nws nquag tawg thaum lub siab high {}} kub galvanizing (450 degree). Phosphorus (p) ua rau "txias brittleness," ua rau nws nquag tawg thaum khoov ntawm qis kub. Siab - zoo hom khoom (xws li baosteel) nruj me ntsis los tswj hwm s tsawg dua los yog sib npaug ntawm 0.025% thiab p tsawg dua lossis sib npaug nrog 0.035%. Txawm li cas los xij, cov chaw tsim khoom me yuav pom qhov tsis txaus ntseeg tshaj qhov kev txwv vim lax raw khoom tswj, cuam tshuam rau tag nrho cov kev ua tau zoo. Cov Khoom Siv Ruging Rolling Txheej Txheem
Cold tshem tawm txo: thaum tandem txias dov, lub zeb txoj kev "txo" (qhov feem pua ntawm cov hlau billet yuav tsum tau qhia meej meej. Kev txo ntau dhau tuaj yeem ua rau sab hauv cov kev ntxhov siab ntau hauv cov khoom siv, ua rau nws xav tsis thoob thaum ua kom txias tom qab galvanizing. Tsawg dhau qhov txo tau tuaj yeem ua rau cov noob coarse thiab tsis txaus siab rau lub zog.
Annealing txheej txheem: tom qab dov tawm, txuas ntxiv annealing yog yuav tsum tau tshem tawm sab hauv kev ntxhov siab. Yog hais tias qhov kub tsis tshua muaj qhov kub dhau (tsawg dua 700 degree), kev nyuaj siab tsis tau tso tawm tag nrho, ua cov Galvanized coil tau rau lub caij nplooj ntoos hlav thaum lub sijhawm stamping. Kev kub dhau heev tuaj yeem ua rau muaj kev loj hlob ntau dhau thiab txo qis duction.
2.Yow yog Zinc Txheej Thickness thiab kev sib haum cuam tshuam kev ua tau zoo?
Zinc Txheej Txheej Nyhav: Cov qib zinc txheej tshwj xeeb rau DX52D yog zinc txheej hnyav ntawm 60g / m2 ntawm ob sab) thiab Z100 (100g / M2). Thicker zinc txheej ua kom zoo dua corrosion (piv txwv li, z100 muaj 2-3 xyoos lub sijhawm kom tiaj tiaj tshaj). Txawm li cas los xij, ntau dhau zinc co co co co co co) (piv txwv li, z275) cov nqi thiab tuaj yeem cuam tshuam cov qauv siv stamping.
Air knife control: After galvanizing, excess zinc liquid is blown off using an "air knife" (high-pressure nitrogen). Tsis sib haum siab los yog ntau dhau ntawm cov kauj tuaj yeem ua rau tsis sib xws
3.Yog ua li cas ua ntej - kev kho mob cuam tshuam kev ua tau zoo?
Ua ntej Galvanizing, lub substrate nto yuav tsum tau huv si roj, teev, thiab lwm yam paug. Qhov no feem ntau cuam tshuam nrog cov alkaline ntxuav (degreing) → acid ntxuav (descaling) → yaug (deycidifying (deacidifying txheej txheem.
Yog tias tsis tiav kev ntxuav roj lossis cov nplai ntawm cov txheej txheem "dub"
4.How tshaj tawm - kev ua cuam tshuam nrog machining kev ua haujlwm ntawm DX52D?
Daim tawv nqaij dhau los
Daim ntawv hla daim ntawv hla yog siv qhov tsawg -}} txo yob cov txheej txheem (1% -3%) kom tiav galvanized coils. Nws cov haujlwm muaj xws li:
Tshem tawm cov "los toj siab" ntawm cov galvanized txheej (tiv thaiv kab hauv qab thaum lub sij hawm tom qab, uas tuaj yeem cuam tshuam cov tsos);
Txhim kho nto roughness (ua rau saum npoo smoother thiab yooj yim rau pleev xim lossis laminate).
Cov tawv nqaij tsis txaus ntseeg yuav tawm "zinc spangles" nyob rau saum npoo ntawm Galvanized chev, tshwm sim hauv cov xim sib txawv tom qab pleev xim. Kev ua kom ntau dhau los yuav puas tsuaj rau cov txheej zinc, ua rau microcracks ua rau microcracks. Kev Kho Mob Passivation
Qee cov qauv DX52D qauv dhau "Chromate passo
Lub Hom Phiaj: Ntxiv txhim kho corrosion tsis kam (cov neeg ua yeeb yaj kiab sib cais cais noo noo thiab tiv thaiv "dawb-
Kev cuam tshuam: Yog hais tias passivation zaj duab xis yog ib yam nkaus lossis tsis sib xws, galvanized cheil yuav sai sai {}}} Cov pa vaum pooj (xws li nyob rau ntawm ntug hiav txwv). Cov kev daws teeb meem tseem ceeb dua tuaj yeem ua rau "craters" (xim nplaum "(pleev xim rau cov xim ntxiv) thaum lub sijhawm tha xim tom ntej.
5.Txhua khaws cia thiab kev thauj mus los cuam tshuam rau DX52D kev ua tau zoo li cas?
Vaum thiab kub: ntev - sij hawm cia hauv ib puag ncig nrog cov av noo kom dhau los ua cov dej noo thiab xeb, ua rau nws txoj kev xeb. Kev kub siab (ntau dua 40 degree) tuaj yeem nrawm qhov kev ua tsis taus ntawm cov zaj duab xis passive.
Stacking: Yog hais tias lub coil hnyav yog hnyav heev (piv txwv li, dhau 20 tons yooj yim deformiation thaum tom qab tom qab tom qab tom qab), cuam tshuam rau kev ua qhov raug. Tsis muaj spacers nruab nrab ntawm coils, qhov saum npoo yuav tau yooj yim khawb, ua rau muaj kev ncaj ncees ntawm zinc txheej.