Panguva yekumisikidzwa uye kuiswa kwechikuva chepuratifomu yesimbi yesimbi, zvinowanzosangana kuti mapaipi kana michina inoda kupfuura nepakati.simbi gratingchikuva chakatwasuka. Kuti zvikwanise kuti michina yepombi ipfuure nepapuratifomu mushe, zvinowanzodikanwa kuti uone nzvimbo uye saizi yekuvhurika panguva yekugadzira, uye mugadziri wesimbi achaita kugadzirwa kwakasarudzika. Iyo nzira yekugadzira yakagadziridzwa kutanga inoda kutaurirana kwakawanda uye kuchinjana ruzivo pakati pedhipatimendi rekugadzira simbi grating uye dhipatimendi rekugadzira simbi, mupi wemidziyo uye dhipatimendi rekuongorora uye mepu. Nekuda kwezvikonzero zvakawanda zvine hukama zvinosanganisirwa, pane kumwe kusava nechokwadi muhukuru uye chinzvimbo chemidziyo iripo. Panguva yekuisa, zvinowanzoitika kuti makomba akachengetwa akachengetwa haagone kusangana nezvinodiwa zvesaiti. Tichifunga nezvemamiriro ezvinhu aya, kuitira kuti ive nechokwadi chekuti chiyero chegoho resimbi grating uye kuvandudza dhizaini nekugadzirwa kwesimbi gratings, mune yazvino dhizaini nekugadzira maitiro, kazhinji kutaura, mamwe maburi ane madiki madhayamita anonetsa kuona haana kugadziridzwa uye kugadziriswa, asi anotsiviwa neyechipiri maitirwo ekuvhura, kucheka, welding, uye kugaya zvinoenderana nemamiriro ekuvakwa kwesimbi.
Sechinhu chitsva, galvanized simbi grating iri kuwedzera kushandiswa zvakanyanya. Galvanizing yave yakakosha nzira yekurwisa-corrosion yesimbi gratings, kwete chete nekuti zinc inogona kuumba dense inodzivirira layer pamusoro pesimbi, asiwo nekuti zingi ine cathodic kudzivirira maitiro. Kana iyo galvanized simbi grating ichiendeswa kunzvimbo, sekondari kugadzirisa uye welding dzimwe nguva inodiwa pakuiswa. Kuvapo kwezinc layer kunounza mamwe matambudziko pakutungidzwa kwegirosi resimbi.
Ongororo ye weldability ye galvanized steel gratings
Galvanized steel gratings yakaputirwa nehutu hwesimbi zinc pamusoro pesimbi yesimbi kudzivirira kuora pamusoro pesimbi yesimbi uye kuwedzera hupenyu hwayo hwebasa. Iyo pamusoro peiyo galvanized simbi grating ichave yakaita maruva. Zvinoenderana nekugadzira uye nzira dzekugadzirisa, inogona kukamurwa muzvikamu zvinotevera: ① inopisa-dip galvanized sheet; ② electrogalvanized steel sheet. Nzvimbo yekunyunguduka yezinc i419 ℃ uye nzvimbo yekubikira i907 ℃, iyo yakadzikira zvakanyanya pane inonyungudika yesimbi, 1500 ℃. Naizvozvo, panguva yekugadzira welding, iyo galvanized layer inotanga kunyungudutsa zvinhu zvevabereki. Mushure mekuongorora kuri pamusoro apa, michina uye yemuviri zvimiro zvemarata akafanana neaya akajairwa kabhoni simbi sheet. Musiyano chete ndewekuti pane zinc coating pamusoro peiyo galvanized steel grating. The welding process of galvanized steel grating
(1) Manual arc welding
Kuti uderedze utsi hwekuputira uye kudzivirira chizvarwa chekuputika kuputika uye pores, zinc layer iri padyo negorofu inofanira kubviswa isati yanyungudutswa. Nzira yekubvisa inogona kuva murazvo wekubika kana sandblasting. Nheyo yekusarudza welding tsvimbo ndeyokuti michina yesimbi ye weld inofanira kunge iri padyo sezvinobvira kune zvinhu zvevabereki, uye silicon yemukati mune yemazuva ese welding tsvimbo simbi yakanyungudutswa inofanirwa kudzorwa pazasi 0.2%. Kune yakaderera-kabhoni simbi girazi zinc simbi grating, J421/422 kana J423 welding tsvimbo dzinofanira kushandiswa kutanga. Kana welding, edza kushandisa arc pfupi uye usazunguze arc kudzivirira kuwedzera kwenzvimbo yakanyungudutswa yegalvanized layer, ita shuwa kudzivirira kwecorrosion kweiyo workpiece uye kuderedza huwandu hwehutsi.
(2) Metal arc welding
Shandisa CO2 gasi yakadzivirirwa welding kana yakasanganiswa gasi yakadzivirirwa welding seAr+CO2, Ar+02 yewelding. Iyo gasi yekudzivirira ine mhedzisiro yakakosha pane yeZn yemukati mune weld. Kana CO2 yakachena kana CO2 + 02 inoshandiswa, Zn zviri mu weld yakakwirira, nepo Ar + CO2 kana Ar + 02 inoshandiswa, Zn zviri mu weld zvakaderera. Ikozvino haina mhedzisiro paZn zvirimo mu weld. Sezvo iyo welding ikozvino inowedzera, iyo Zn yemukati mune weld inodzikira zvishoma. Paunenge uchishandisa gasi shielded welding kuti weld galvanized simbi grating, iyo welding fume yakakura kupfuura iyo yemanyorero arc welding, saka kutarisisa kwakanyanya kunofanirwa kubhadharwa pakupedza. Zvinhu zvinokanganisa huwandu uye kuumbwa kwehutsi zvinonyanya kuitika uye gasi rinodzivirira. Iyo yakakura ikozvino, kana yakakura iyo CO2 kana O2 yemukati mune inodzivirira gasi, iyo yakakura yekupisa utsi, uye iyo ZnO yemukati mumhepo inowedzerawo. Iyo yakawanda yeZnO yemukati inogona kusvika pa70%. Pasi pematanho akafanana ekushongedza, kudzika kwekupinda kwesimbi kwakakura kupfuura kweiyo isina-galvanized simbi grating.
Nguva yekutumira: Aug-16-2024