Ngura chena chinhu chinoitika mushure mekuita galvanizing. Basa rekudzivirira riri munzira yainorongedzerwa, inobatwa uye kuchengetwa isati yaiswa uye kushandiswa kwechigadzirwa chegalvanized. Kuvapo kwengura chena hakusi kuratidzwa kwekuita kwemarara, asi basa reavo vese vanobatanidzwa mucheni yekugovera kuona kuti zvikonzero zve chena ngura zvinozivikanwa uye njodzi dzekuitika kwayo kudzikiswa pasimbi ichangobva galvanized. Kana zvasvika kuChina inopisa yakanyikwa galvanized pombi, uko simbi ichangobva galvanized inoratidzwa kumvura yakachena (kunaya kwemvura, dova kana condensation), munzvimbo isina oxygen, mvura icharamba ichiita ne zinc uye zvishoma nezvishoma ichipedza coating. Mamiriro anonyanya kuitika panoitika ngura chena ndeyezvigadzirwa zvemarata zvakasungirirwa pamwe chete, zvakasungwa zvakasimba, kana kuti apo mvura inogona kupinda pakati pezvinhu zvogara kwenguva yakareba.
Kazhinji, mvura yakachena (H2O) haina munyu yakanyungudutswa kana zvicherwa uye zinc ichaita nekukurumidza nemvura yakachena kugadzira zinc hydroxide, chena yakawanda uye isina kugadzikana oxide ye zinc. Steel conduit ine jira rakatetepa rezinc rakasanganiswa kune substrate yesimbi. Musanganiswa uyu unopa zvinhu zvine michina yesimbi inokwidziridzwa nekudzivirirwa kwezinc. Zvisinei, kana galvanized surface yakarwiswa uye iyo zinc hydroxide compounds yakaumbwa, zvinodikanwa kubvisa zvigadzirwa zve oxide kubva pamusoro nokuti: 1) kuvapo kwavo kunodzivisa kuumbwa kwekasikisi yakagadzikana yakagadzirwa; 2) havataridzike.
Nezve inotonhora yakakungurutswa simbi mutopota, re-passivating pamusoro kwakakurudzira imwe anokosha zvikuru kurapwa simbi pombi mubasa. Kunyanya, apo kuchena kwakaitika uye chinhu chinogona kuramba chichiratidzwa chinogona kuparadzira kuora kwakafanana, kudzorerazve kwepamusoro kunogona kuitwa nekugadzirisa pamusoro nemhinduro ye5% sodium dichromate 0.1% sulfuric acid, kukwesha ne. bhurashi rewaya yakaoma kwemasekonzi makumi matatu isati yanyatsosukurudzwa pamusoro. Senyanzvi yeChina simbi inogadzira chubhu muChina, tinoda kupa akati wandei matanho akareruka anogona kudzikisa zvakanyanya kana kubvisa kuumbwa kwewhite rust sezvinotevera kune fungidziro yako:
• Chengetedza basa rakazara rakaoma
• Rongedza zvinhu kuti mweya utenderere pakati penzvimbo
• Rongedzera zvinhu zvarongerwa kuti mvura ibude
• Ropa pasi nezvinodzoreredza mvura kana zvivharo zvekuvharisa kudzivirira mwando kusanganidzana nemarara.
Tumira meseji yako kwatiri:
Nguva yekutumira: Aug-20-2018
