Nezve kunyudzwa kwepombi yesimbi yakanyudzwa, maitiro ekupisa-dip galvanizing anoguma mune metallurgical bond pakati pezingi nesimbi ine nhevedzano yeakasiyana iron-zinc alloys. Yakajairika hot-dip galvanizing line inoshanda seinotevera:
1. Simbi inonatswa uchishandisa caustic solution. Izvi zvinobvisa mafuta/girisi, tsvina, uye pendi.
2. Iyo caustic yekuchenesa mhinduro inosukwa.
3. Simbi inosanganiswa muine acidic solution kuti ibvise chigayo.
4. Mushonga we pickling unosukwa.
5. Flux, kazhinji zinc ammonium chloride inoshandiswa kune simbi kuti inhibit oxidation yenzvimbo yakacheneswa kana yasangana nemhepo. Iyo flux inobvumirwa kuomeswa pasimbi uye inobatsira mukuita kwemvura zinc wetting uye kunamatira kune simbi.
6. Simbi inonyikwa mubhati yezinc yakanyungudutswa uye inobatwa imomo kusvikira tembiricha yesimbi yaenzana neyokugezera.
7. Simbi inotonhodzwa mutangi rekudzima kuti ideredze tembiricha yaro uye inodzivirira kuita kusingadiwi kweiyo ichangobva kuumbwa yekuputira nemhepo.
Neunyanzvi, galvanization inzira yekunamira simbi nesimbi nedariro rezingi nekunyudza simbi mubhavhu rezinc yakanyungudutswa patembiricha inosvika 840 °F (449 °C). Kana yaiswa mumhepo, zinc yakachena (Zn) inopindirana neokisijeni (O2) kuumba zinc oxide (ZnO), iyo inowedzera kuita necarbon dioxide (CO2) kuumba zinc carbonate (ZnCO3), inowanzoita grey, yakasimba. zvinhu zvinodzivirira simbi iri pasi kubva pakuwedzera ngura mumamiriro mazhinji. Kazhinji, pombi inopisa yakanyudzwa yakanyungudutswa ine mutengo wepombi yesimbi yakakwira kupfuura mamwe marudzi akajairwa epombi ari kushandiswa nekuda kwemutengo wayo wepamusoro wekugadzira pamusika.
Kune anoshanda maapplication, semamwe masystem ekudzivirira ngura, galvanizing inonyanya kuchengetedza zvigadzirwa zvesimbi nekuita sechipinganidzo pakati pesimbi pombi nemhepo. Zvisinei, zingi isimbi yakawanda yemagetsi kana ichienzaniswa nesimbi. Ichi chimiro chakasiyana chekugadzira galvanizing. Kunyanya, kana galvanized coating ikakuvadzwa uye chigadzirwa chesimbi chaiswa mumhepo, zinc inogona kuramba ichidzivirira simbi kuburikidza ne galvanic corrosion. Uyezve, kana chipfeko ichi chikaitika kuti chakakwenywa kana kugochwa, zinc yechipiri yekudzivirira inodaidzwa kuchengetedza simbi ne galvanic chiito. Muchigayo, ukobvu hwezinki hunodzorwa nehuwandu hwenguva iyo chikamu chimwe nechimwe chinonyudzwa mubhavhu rezinc rakanyungudutswa pamwe chete nekumhanya kwainobviswa. Izwi rekuti “kunyudzwa kaviri” rinoreva zvikamu zvakakurisa kuti zvikwane mugeti rinoita kuti galvanizing kettle inyudzwe imwe nguva. Izvo hazvireve kune yakawedzera coating ukobvu. Senyanzvi yekugadzira pombi yesimbi muChina, takazvipira kugadzira marudzi akasiyana-siyana epombi yesimbi yemapurojekiti ako. Kuti uwane rumwe ruzivo, unogona kutibata chero nguva.
Tumira meseji yako kwatiri:
Nguva yekutumira: Jul-30-2018
