Hauv peb lub neej niaj hnub peb feem ntau siv cov khoom raws li cov ntawv galvanized. Cov no yog, ua ntej ntawm tag nrho cov, thoob, basins, canopies ntawm lub loggias, cov kua dej ntawm lub qhov rais. Ntau yam tseem ceeb yog tsim los ntawm cov khoom siv no hauv ntau qhov kev lag luam.
Nws yog raws li cov hlau txias-kuav los tiag nrog cov ntawv sib txawv. Nws yog siv nyob rau hauv cov ntaub ntawv uas yuav tsum tau ib tug stainless, ruaj thiab yooj yim rau siv cov khoom. Galvanized ntawv mus muag nyob rau hauv yob los yog bundles, nyob rau hauv uas cov nplooj ntawv yog stacked nyob rau sab saum toj ntawm txhua lwm yam. Qhov ntev thiab qhov dav yuav txawv. Rau kev tsim khoom ntawm ntau qhov chaw, cov nplooj ntawv ntawm qhov yuav tsum tau muaj qhov ntev yog coj mus rau hauv kev ua haujlwm. Nws tuaj yeem yog xovxwm rau stamping qhov chaw ntawm qhov xav tau kev teeb tsa. Los yog lub tshuab dabtsi yog khoov uas ebbs, visors lossis lwm yam khoom tsim nyog rau kev siv hauv kev tsim kho yog khoov. Yav dhau los, ib daim hlau ntawm qhov xav tau loj yog txiav tawm ntawm yob los yog ntawv. Nws yooj yim dua los siv strip rau stamping, tshwj xeeb tshaj yog tias koj xav tau qhov me me.
Galvanized ntawv yog dav siv thiabthaum tsim lub ru tsev. Lub ru tsev seam ua los ntawm cov hlau no hloov mus rau qhov zoo nkauj thiab tsis kim heev. Ntawm no nws yog qhov zoo dua los siv cov khoom siv dov. Cov cuab yeej siv niaj hnub tso cai rau koj los ua haujlwm ncaj qha rau ntawm lub ru tsev, uas ua rau kom tag nrho cov txheej txheem nrawm heev. Tom qab ntsuas cov hlau sib npaug ntawm qhov loj ntawm lub ru tsev, lawv txiav thiab muab tso rau hauv, tam sim ntawd dov rau hauv ib lub tais.
Galvanized ntawv, qhov hnyav uas nyob ntawm qhov tuab, yuav muaj txheej tiv thaiv. Cov polyester siv rau lub hom phiaj no tsis muaj ntau yam xim, tab sis cov xim yooj yim xws li dawb, xim av, grey thiab dub tuaj yeem pom. Thaum xav tau lwm yam xim, xim yog siv. Rau qhov no, cov khoom tiav raug xa mus rau ib chav tshwj xeeb. Cov hmoov pleev xim tso cai rau koj pleev xim rau ebb lossis visor hauv ib qho xim raws li cov xim pleev xim.
Rau corrugated board, uas mus rau laj kab lossis ru tsev, ib daim ntawv galvanized ntawm ib lub thickness kuj siv. Reinforcement ribs muab cov khoom no ua lub hauv paus ruaj khov. Kev teeb tsa thiab qhov loj ntawm qhov zawj yog txiav txim siab los ntawm hom ntawm daim ntawv thiab nws daim ntawv thov ntxiv. Galvanized thoob, txawm tias tsawg thiab tsawg, tab sis kuj pom lawv siv hauv lub neej txhua hnub, tsis poob lawv txoj haujlwm rau txhuas lossis yas counterparts.
Kev kos npe, uas qhia txog daim ntawv galvanized, tso cai rau koj los txiav txim siab cov yam ntxwv ntawm cov hlau thiab cov txheej txheem ua haujlwm. Qhov twg hlau mus tom ntej txiav txim siab nws qhov kev ua tau zoo.
Table 1. Classification by purpose
| ХШ | Cold forming |
| HP Y | Cold profileing |
| PC | |
| OH | hom phiaj dav dav |
Cov khoom muag tuaj yeem muaj qhov chaw du lossis lub lattice qauv ntawm cov muaju. Nyob ntawm qhov tuab ntawm cov txheej txheej, nws yog ib txwm ua los faib cov ntawv galvanized rau hauv peb chav kawm.
Table 2. Kev faib tawm los ntawm txheej
| Cov chav kawm | txheej thickness, md. |
| 2 | 10-18 |
| 1 | 19-40 |
| R (nce) | 41-60 |
Thaum siv cov txheej txheem rau pem hauv ntej thiab sab nraub qaum siv cov chav sib txawv. Feem ntau, cov ntaub ntawv polyester coated yog dawb los yog xim av qib ib rau pem hauv ntej thiab qib ob grey rau lwm yam. Yog li ntawd, thaum txiav txim cov khoom uas ob sab yuav tsum muaj tib xim, lawv siv hmoov xim.
