Zvinonyatsozivikanwa kuti kunaka kwegalvanized square uye rectangular chubhuuye nzira yekuisa inobata zvakananga kugadzikana kwezvivako zvesimbi.
Parizvino, zvinhu zvekutsigira pamusika zvinonyanya kabhoni simbi. Izvo zvigadzirwa zvekabhoni simbi zvinowanzoita Q235 uye Q345, izvo zvinorapwa nekupisa galvanizing. Rutsigiro rwakagadzirwa ne strip simbi coil kuburikidza nekutonhora kukotama, welding, kupisa galvanizing uye mamwe maitiro. Kazhinji, ukobvu hunofanira kunge hwakakura kupfuura 2mm, uye kunyanya kune dzimwe nzvimbo dzemahombekombe, dzakakwirira-kukwira uye dzimwe nzvimbo dzine mhepo nenzvimbo, zvinokurudzirwa kuti ukobvu haufanire kunge uri pasi pe2.5mm, zvikasadaro pane njodzi yekubvarura simbi. yekubatanidza nzvimbo.
Muzvivakwa zvakakura zvekuvaka, zvecarbon steel galvanized square uye rectangular pombi, yakawanda sei iyo zinc coating inofanirwa kusvikwa kuti isangane nezvinodiwa zvezvakatipoteredza corrosion service life?
Sezvo isu tese tinoziva, ukobvu hwekupisa-dip galvanizing yakakosha mhando uye technical index yegalvanized square pipe, iyo yakabatana nekuchengetedzwa uye kusimba kwechimiro. Kunyangwe paine mwero yenyika uye yehunyanzvi, iyo isina kukodzera zinc coating ukobvu hwerutsigiro ichiri dambudziko rakapararira rehunyanzvi rerutsigiro.
Iyo inopisa-dip galvanizing process chirongwa chakagadzikana uye chakavimbika chesimbi chepamusoro chekurapa kurwisa ngura kwezvakatipoteredza. Pane zvinhu zvakawanda zvinokanganisa kupisa-dip galvanizing, senge kuumbwa kwesimbi substrate, mamiriro ekunze (akadai sekukasharara), kushushikana kwemukati meiyo substrate, uye akati wandei saizi. Munguva iyi, kukora kwe substrate kune hukuru hukuru pahupamhi hwekupisa-dip galvanizing. Kazhinji, kukora kwendiro, ndiko kukura kwekukora kweiyo inopisa-dip galvanizing. Tsigiro ine ukobvu hwe 2.0mm inotorwa semuenzaniso kuratidza kuti yakawanda sei gobvu ye zinc coating inodiwa kugutsa kwezvakatipoteredza corrosion sevhisi zvinodikanwa zvehupenyu.
Fungidzira kuti ukobvu hwechigadziko chekutsigira i2mm, zvinoenderana neyakajairwa GBT13192-2002 inopisa galvanizing standard.
Ndeupi hukobvu hwemalata epaipi inodiwa kuti isangane nehupenyu hwesevhisi zvinodiwa?
Galvanized square pipe
Zvinoenderana nezvinodiwa zverudzi rwenyika, ukobvu hwe2mm base zvinhu haufanirwe kuve pasi pe45 μ m. Ukobvu hwakafanana hahufanire kunge huri pasi pe55 μ m. Zvinoenderana nemhedzisiro yeatmospheric exposure test yakaitwa neJapan Hot Dip Galvanizing Association kubva muna 1964 kusvika 1974. Chii chinonzi galvanized layer ye galvanized square pombi inodiwa kusangana nehupenyu hwesevhisi zvinodiwa. ?
Kana ikaverengerwa zvinoenderana nechiyero chenyika, zinc yemukati i55x7.2=396g/m2,
Hupenyu hwesevhisi hunowanikwa munzvimbo ina dzakasiyana ndeye:
Heavy industrial zone: 8.91 makore, ane gore negore corrosion degree ye40.1;
Coastal zone: 32.67 makore, ine gore negore corrosion degree ye10.8;
Kunze: 66.33 makore, ane gore negore corrosion degree ye5.4;
Urban area: 20.79 makore, ine gore negore corrosion degree ye17.5
Kana ikaverengwa maererano ne photovoltaic service life yemakore makumi maviri nemashanu
Zvino kutevedzana kwemazoni mana kunenge:
1002.5270135437.5, kureva 139 μ m, 37.5 μ m, 18.75 μ m, 60.76 μ m.
Naizvozvo, pakugoverwa kwenzvimbo dzemumaguta, ukobvu hwezinc coating hunofanira kunge huine 65 μ M hunonzwisisika uye hunodiwa, asi kune inorema maindasitiri nzvimbo, kunyanya idzo dzine acid uye alkali corrosion, zvinokurudzirwa kuti ukobvu hwegalvanized square pombi. uye zinc coating inofanira kuwedzerwa zvakakodzera.
Nguva yekutumira: Sep-21-2022
