1.What cov khoom siv tshuab ntawm cov ntawv galvanized yuav tsum tau ntsib?
Tos lub zog: Qhov no txiav txim siab cov ntawv muaj peev xwm tiv taus kev tawm tsam tas mus li. Piv txwv li, cov ntawv galvanized siv rau kev ua haujlwm hauv tsev yuav tsum tau ua kom muaj zog, thaum cov khoom siv tau yooj yim ntawm cov qib siab, xws li Q235 lossis SpCC).
Lub zog tensile: qhov kev ntsuas no muaj cov ntawv ntau tshaj plaws uas muaj peev xwm siv tau rau hauv lub zog ua ntej yuav tsum tau ua txhaum cai
Kev Txom Nyem: Qhov no qhia txog cov ntawv muaj peev xwm deform plastically thiab yog tus taw qhia tseem ceeb rau kev ua (xws li khoov thiab khib nyiab). Galvanized ntawv nrog qis dhau qhov kev elongation ntau dhau yog nquag mus tawg thaum lub sijhawm sib tw. Rau cov ntawv thov uas yuav tsum tau ua, xws li cov khoom siv hluav taws xob thiab cov yeeb nkab fittings, elongation ntawm 15% lossis siab dua yog feem ntau yog feem ntau ntawm cov txheej txheem). Hardness: nws yuav tsum phim daim ntawv thov kev pab cuam. Piv txwv li, lub hardness ntawm cov ntawv galvanized siv rau ntim (thawv rau cov ntawv uas yuav tsum muaj rau kev tawm tsam kev hnav khaub ncaws (kom tsis txhob muaj cov khoom siv hluav taws xob), feem ntau cim nrog brinell hardness HB lossis Vickers Hardness HV lossis Vickers Hardness HV lossis
2.Qhov dab tsi yog tus tub ntxhais muaj nuj nqi ntawm lub galvanized txheej?
Galvanized Txheej Thickness: Qhov no yog lub hauv paus ntawm corrosion ua hauj lwm {}} cov tuab ib puag ncig, txhua qhov ntxiv rau ntawm zinc los ntawm kwv yees li 1-2 xyoos). Yuav tsum muaj kev sib txawv nyob ntawm daim ntawv thov:
Cov Kev Siv Cov Khoom Siv Hauv Tsev (xws li cov cuab yeej siv hauv tsev): Lub zinc txheej tuab yog feem ntau yuav tsum muaj ntau dua lossis sib npaug rau 80g /} {1}-
Sab nraum zoov vaum / muaj ib puag ncig (xws li arapa xim {{}} Cov piping steel thiab sib npaug los yog sib npaug zos rau ntawm 12μm / sab);
Cov ntug dej hiav txwv ib puag ncig nrog cov roj av siab (xws li cov chaw nres nkoj siab): ntau dua li 39h], thiab ua ke ntawm ib qho tuab zinc txheej thiab passivation yuav siv tau.
Galvanized txheej nplaum: Zinc txheej yuav tsum ua kom haum rau lub substrate; Txwv tsis pub, nws yuav tev tawm (piv txwv li, zinc txheej yuav tev thaum khoov duav, yog li poob nws txoj kev tiv thaiv corrosion). Qhov no feem ntau yog kuaj tau los ntawm "khoov ntsuas": lub galvanized ntawv yog bent 180℃(lossis ntawm ib tus qauv kaum). Kev txais yog txiav txim siab los ntawm qhov tsis ua rau flaking lossis tawg hauv cov txheej zinc. Kev ua tiav passivation (xav tau nyob rau hauv qee cov ntawv thov): Tom qab lub galvanizing, xws li chromate passivation lossis chromium passive (xws li ua kom tsis txhob muaj tshuaj lom neeg ua haujlwm (tshwj xeeb tshaj yog ua rau ntsev tsuag thiab dej noo). Qhov no yuav tsum yog kuaj cov tshuaj ntsev: piv txwv li, hauv nruab nrab, lub sijhawm dawb yuav tsum muaj ntau dua los yog sib npaug nrog 96 teev (tawm sab nraud).
Corrosion tiv thaiv tsis sib xws: Cov kab Zinc yuav tsum tau npog cov ntawv pov thawj kom tsis txhob muaj cov "ploj plating" (qhov twg substrate yog ncaj qha rau xeb thiab raug rau cov muaj xeb ncaj qha). Qhov no tuaj yeem kuaj xyuas tau los ntawm kev ntsuam xyuas "tso tawm tshwj xeeb (xws li tooj liab sulfate daws teeb meem sai sai (liab me ntsis qhia cov hlau liab, qhia tias cov plhaw tawg).
3.Yuav ua li cas cov ntawv zoo ntawm cov ntawv galvanized cuam tshuam rau nws cov tsos thiab kev haum rau kev ua tiav?
Tsis muaj qhov pom tseeb: lub saum npoo yuav tsum pub dawb ntawm cov kab nrib pleb, tev, tawg, suav, lossis khawb. Cov tsis zoo no tsis tsuas yog cuam tshuam rau cov tsos tab sis kuj puas yog kev ncaj ncees ntawm zinc txheej ntawm zinc txheej (piv txwv, khawb tau yooj yim corrode). Qhov no muaj tseeb tshwj xeeb rau "cov ntawv thov raug xws li cov khoom siv kho kom zoo nkauj thiab vaj tse khoom zoo li cov khoom siv hluav taws xob, qhov uas xav tau" thawj zaug, lub ntsiab lus tsis pom kev).
Zinc Txheej Kev Lom Zem: Ntxiv rau kom muaj kev sib txawv ntawm cov txheej txheem ntawm cov txheej txheem galvanizing (xws li "me me)" lossis " Zam kev tshaj tawm ntau dhau los lossis ntom ntom ntom nti, uas tuaj yeem ua rau tsis xwm yeem thiab cuam tshuam ntxiv cov duab liab qab (cov txiv ntoo tsis sib xws tuaj yeem ua rau cov xim tsis sib xws).
Nto Roughness: saum npoo yuav tsum ua kom haum rau daim ntawv thov. Piv txwv li, cov ntawv galvanized siv rau luam ntawv / laminated cov yeeb yaj kiab (xws li tsawg dua los yog sib npaug ntawm 1.6μm) kom tsis txhob muaj kev sib tw uas cuam tshuam cov ntawv luam tawm. Rau cov txheej txheem qhov chaw uas tsis tas yuav ua tiav theem nrab, cov roughness tuaj yeem so.
4.How yog tus txheej txheem yoog tau ntawm galvanized qhia?
Machinability:
Dabtsi yog khoov / stamping: yuav tsum ua kom tiav ntawm "tsis muaj zinc txheej thiab tsis muaj zinc txheej nkhaus" (raws li tau hais los saum no, qhov no nyob ntawm elongation thiab Zinc Txheej Txheem Adhesion).
Txiav / Txiav: txiav cov npoo yuav tsum yog du thiab tawg} Cov teeb meem yooj yim (kom tsis txhob muaj cov kab mob corrosion
Weldability: yog tias vuam yuav tsum tau (xws li rau lub tsev steel qauv thiab cov khoom siv tshuab), cov ntawv galvanized yuav tsum tau raws li kev xav tau vuam. Zinc Vinc Vacor yuav tsim tawm thaum vuam, yog li Weld Porosity thiab kev tawg yuav tsum raug zam. Ib qho txheej txheem vuam tsim nyog (xws li Arc ARB VUAM) feem ntau yuav tsum tau, thiab weld seam yuav tsum tau rov ua nrog corrosion tiv thaiv tom qab vuam.
Paintability: Yog hais tias ntxiv txheej (xws li txau lossis pleev xim rau cov roj (dawb ntawm cov khaubncaws sab nraud povtseg Qhov no tuaj yeem kuaj xyuas tau los ntawm kev kuaj "adhesion," xws li tus ntoo khaub lig- Txiav cov txheej detachment.
5.Qhov yog tus yuam sij "tseem ceeb uas tseem ceeb tshaj plaws" ua ntej rau cov xwm txheej sib txawv?
Cov khoom siv kho kom zoo nkauj / Cov Khoom Siv Hauv Tsev: Kev qhia txog qhov tsis zoo (qhov tsis muaj zog (haum rau kev tiv thaiv corrosion (qauv zinc txheej tuab).
Sab nrauv kos duab / Muaj: Muaj kev cuam tshuam corrosion tsis kam (thoj txau, ua lub zog (anti {{{{deformation).
Automotive / Neeg Khonical cov khoom siv (tensile muaj zog, hardness), zinc txheej adhesion (tsis muaj tev duab thaum ua), thiab weldability.
Cov kev xav tau corrosive (ntug dej hiav txwv): cov tseem ceeb tshaj plaws