Panguva yekumisikidzwa uye kuiswa kwechikuva chepuratifomu yesimbi yesimbi, zvinowanzosangana kuti mapaipi kana midziyo inoda kupfuura nepapuratifomu yesimbi yakatwasuka. Kuti zvikwanise kuti michina yepombi ipfuure nepapuratifomu mushe, zvinowanzodikanwa kuti uone nzvimbo uye saizi yekuvhurika panguva yekugadzira, uye mugadziri wesimbi achaita kugadzirwa kwakasarudzika. Maitirwo ekugadzirwa kwakagadziridzwa kutanga anoda dhipatimendi rekugadzira simbi kuti ritaure uye kuchinjana ruzivo nedhipatimendi rekugadzira simbi, mupi wemidziyo, uye dhipatimendi rekuongorora nemepu. Nekuda kwezvikonzero zvakawanda zvine hukama zvinosanganisirwa, uye saizi nenzvimbo yemidziyo ine zvimwe zvekusaziva. Panguva yekuisa uye kuvaka, zvinowanzoitika kuti makomba akachengeterwa akagadziriswa haagone kusangana nezvinodiwa zvesaiti. Tichifunga nezvemamiriro ezvinhu aya, kuitira kuti ive nechokwadi chekuti chiyero chegoho chesimbi yesimbi uye kuvandudza dhizaini nekugadzira kugadzirwa kwesimbi grating. Mukugadzirwa kwazvino uye maitiro ekugadzira, mamwe maburi madiki madiki ane zvinzvimbo zvakaoma kuona haawanzo kugadzirwa uye kugadziriswa. Pane kudaro, nzira dzechipiri dzekugadzirisa dzakadai se-pa-site kuvhura, kucheka, kuputika, uye kugaya kunoitwa maererano nemamiriro ezvinhu aripo panguva yekuisa uye kuvakwa kwesimbi grating.
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 nekuda kwekudiwa kwekuiswa. Kuvapo kwezinc layer kunounza mamwe matambudziko pakutungidzwa kwegirosi resimbi.
Ongororo ye weldability ye galvanized steel grating
Galvanized steel grating ndeyekudzivirira pamusoro pesimbi yesimbi kubva pakuora uye kuwedzera hupenyu hwayo hwebasa. Chigadziko chesimbi zinc chinoputirwa pamusoro pesimbi yesimbi, uye pamusoro peiyo galvanized steel 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 ℃. Nokudaro, panguva yekugadzira, galvanized layer inonyunguduka pamberi pezvinhu zvevabereki. Mushure mekuongorora kuri pamusoro apa, zvivakwa zvemakanika uye zvemuviri zvepeji rakabatiswa zvakafanana neaya eakajairwa kabhoni simbi sheet. Musiyano chete ndewekuti pane galvanized layer pamusoro peiyo galvanized steel grating. Welding process ye 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 yewelding inofanira kunge iri padyo sezvinobvira kune zvinhu zvevabereki, uye iyo silicon yemukati muwelding tsvimbo yemoto simbi inofanirwa kudzorwa pazasi 0.2%. Kune yakaderera kabhoni simbi galvanized simbi grating, J421 / J422 kana J423 welding tsvimbo dzinofanira kushandiswa kutanga. Kana welding, edza kushandisa arc pfupi uye usarega arc ichizungunuka kudzivirira kuwedzera kwenzvimbo yakanyungudutswa ye zinc coating, simbisa kushora kweiyo workpiece uye kuderedza huwandu hwehutsi.
(2) Metallurgical electrode gasi shielded welding inoshandisa CO2 gasi shielded welding kana yakasanganiswa gasi shielded welding yakadai 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 steel grating, fume yewelding yakakura kudarika manual arc welding, saka kutarisisa kwakanyanya kunofanirwa kubhadharwa pakupedza. Zvinhu zvinokanganisa huwandu uye kuumbwa kwehutsi zvinonyanya kuitika uye kudzivirira gasi. Iyo yakakura ikozvino, kana iyo yakakura yeC02 kana 02 mune yekudzivirira gasi, iyo yakakura iyo welding fume, uye iyo Zn0 yemukati mumhepo inowedzerawo. Iyo yakanyanya Zn0 yemukati inogona kusvika pa70%. Pasi pezvinyorwa zvakafanana zvekushongedza, kudzika kwesimbi yakasvibiswa kwakakura kudarika iyo isina-galvanized steel grating.
Nguva yekutumira: Jun-25-2024