1.What yog qhov laj thawj tseem ceeb rau lub zinc txheej kom poob ntawm cov ces kaum ntawm Galvanized steel?
Ntub dej thiab reflux ntawm zinc kua yog tsis sib haum
Cov nyhuv ntse:
Lub vojvoog curius ntawm lub ces kaum yog me me, thiab lub nro nro ntawm cov kua dej zinc tiv thaiv nws los ntawm cov ntaub qhwv tag nrho → kev sib sau micro cua.
Ntau dua reflux ntawm zinc kua:
Thaum workpiece tawm cov laujkow zinc, cov zinc kua ntawm cov ces kaum dhuav dua vim muaj kev sib tsoo zinc tuab yog tsuas yog 30% ~ 50% ntawm qhov chaw
Deterioration ntawm Alloy Txheej Txheej Txheej Txheem
ζ phase has high hardness (>300hv) tab sis yog nkig thiab yooj yim tawg los ntawm sab nraud rog
Cua txias kev ua haujlwm siab
Cov cua sov dissipation tus nqi ntawm cov ces kaum yog 3 ~ 5 zaug uas ntawm lub tiaj tiaj tiaj li → qhov kev ntxhov siab ntawm zinc
Ua kev puas tsuaj
Shear Beve Muaj Mob Txias Ua Haujlwm Hardenening Txheej (Hardness Ntau Ntau Los Ntawm 20%) → Ill Diffusion
Stamping burrs (qhov siab> 0.1 hli) ua kev ntxhov siab
2.What yog cov tswv yim los ua kom zoo dua cov txheej txheem?
Kev tiv thaiv ntawm tus tsim theem
Chamfering: yam tsawg tshaj plaws ntawm curvature r ntau dua los yog sib npaug rau 2 zaug lub phaj tuab
Pre-punch ntxhov siab nyem qhov sab hauv tus khoov ceg tawv
Tsis txhob ntse kaum lub vuam vuam:
Hloov cov fillet Weld nrog K-Hom Groove (lub qhov tob tshaj lossis sib npaug rau 60 degree) los hloov txoj cai-kaum sab xis sib zog sib tshooj
Ua ntej Kev Kho Mob
Sandblasting:
Sandblasting lub zog ntawm lub ces kaum cheeb tsam yog nce los ntawm 20% (siv 0.3mm cam khwb cia steel txhaj tshuaj)
Kev ua kom electrolytic:
Ncaj qha tam sim no (5A / dm²) tau dhau los ntawm cov ces kaum los txhawb kev raug mob ntawm cov khoom nquag
3.Qhov cov ntaub ntawv tuaj yeem hloov chaw?
Cov Txheej Txheem Hauv Zos
Pre-txheej ntawm cov fab thiab npoo zinc-nickel alloy (electroplating alloy (ni cov ntsiab lus 12 ~ 15%)
Txau tom qab Galvanizing Epoxy Zinc Hmoov Primer + Polyurethane Topcoat (Tag Nrho Cov thickness 120μμμμμμμμμμON)
Substrate hloov kho • Boron microalloyed steel (b {%) yog siv rau 20mm ntau ntawm cov kev tsim ntawm ζ theem
4.What yog cov khoom kuaj thiab cov txuj ci?
Zinc Txheej Thickness: Sib Nqus Thickness Tag Huv Tibsi
Tsevneeg Khub Muaj Zog: Cov txheej txheem hla kev
Kev Ntsuam Xyuas Brittleness: Kev kuaj mob
5. Dab tsi yog cov phiaj xwm kho mob maj nrawm rau kev thaj chaw?
Kev Kho Mob ntawm Duzincification Cheeb Tsam:
Sib tsoo nrog lub kaum ntse ntse rau qib st3 (ua rau muaj xim hlau lug)
Acetone tu thiab degreasing
Kho Khoom Siv: ◦ Scraping zinc-txhuas pseudo alloy muab tshuaj txhuam (muaj 8%
Kev Tiv Thaiv Kev Tiv Thaiv: Kho cov txheej tuab=1.5}} lub sij hawm ntawm thawj zinc txheej
Sab Nraud Txheej Ntawm Epoxy Micaceyous Hlau Inflmediax