Umbhobho ongenanto :
Umbhobho uthathwa njengongenanto ukuba awunayo i-coating enamathele kuwo. Ngokwesiqhelo, xa ukuqengqeleka kugqityiwe kwindawo yokusila intsimbi, izinto ezingenanto zithunyelwa kwindawo eyenzelwe ukukhusela okanye ukugquma izinto nge-coating oyifunayo (echazwa yimeko yomhlaba yendawo esetyenziswa kuyo loo nto). Umbhobho ongenanto lolona hlobo luqhelekileyo lombhobho olusetyenziswa kwishishini lokufaka iintsika kwaye uhlala ufakwa emhlabeni ukuze usetyenziswe kwisakhiwo. Nangona kungekho zifundo zicacileyo ezibonisa ukuba umbhobho ongenanto uzinzile ngakumbi kunombhobho ogqunyiweyo wokufaka iintsika, umbhobho ongenanto uqhelekile kwishishini lesakhiwo.
Umbhobho wokugaya isinyithi :
Ukugaya okanye ukugaya i-galvanization yenye yezona ntlobo zidumileyo zokugquma ngepayipi yentsimbi. Nokuba isinyithi ngokwaso sineempawu ezininzi ezintle xa kufikwa ekumelaneni nokugqwala kunye namandla okutsalwa, kufuneka sigqunywe nge-zinc ukuze sigqitywe ngcono. Ukugaya i-galvanization kungenziwa ngeendlela ezahlukeneyo, kuxhomekeke ekubeni le ndlela ikhona na. Nangona kunjalo, eyona ndlela idumileyo kukugaya i-hot-dip okanye i-batch dip galvanizing equka ukuntywiliselwa kombhobho wentsimbi kwibhafu ye-zinc enyibilikisiweyo. I-metallurgical reaction eyenziwe yi-alloy yombhobho wentsimbi kunye ne-zinc idala ukugqitywa kumphezulu wesinyithi okubonelela ngomgangatho ongenakugqwala ongazange ubekho kumbhobho ngaphambili. Enye inzuzo yokugaya i-galvanization ziingenelo zexabiso. Njengoko inkqubo ilula kwaye ayifuni imisebenzi emininzi yesibini kunye nokulungiswa emva kwayo, ibe lukhetho oluya kuthandwa ngabavelisi abaninzi kunye namashishini.
I-FBE - Umbhobho Wokugquma i-Fusion Bonded Epoxy Powder :
Olu phahla lombhobho lubonelela ngokhuseleko olugqwesileyo kwiipayipi ezincinci ukuya kwezinkulu ezinobukhulu obuphakathi kunye nobushushu obuphakathi bokusebenza (-30C ukuya kwi-100C). Ukusetyenziswa kwalo kusetyenziswa kakhulu kwiipayipi zeoyile, igesi, okanye zemisebenzi yamanzi. Ukunamathela okuhle kakhulu kuvumela ukumelana nokugqwala kwexesha elide kunye nokukhuselwa kombhobho. I-FBE ingasetyenziswa njengomaleko ombini obonelela ngeempawu zomzimba ezomeleleyo ezinciphisa umonakalo ngexesha lokuphathwa, ukuthuthwa, ukufakwa, kunye nokusebenza.
Umbhobho we-Epoxy Anticorrosive onamaleko omnye: Ukwaleka kwamandla ombane okuqinileyo;
Ipayipi ye-Double Layer Fusion Bonded Epoxy Anticorrosive: Umgubo we-epoxy osezantsi, uze emva koko ube ngumphezulu we-epoxy powder.
Umbhobho wokugquma we-3PE Epoxy :
Umbhobho wentsimbi ogqunywe yi-3PE Epoxy unezigqubuthelo ezi-3, eyokuqala yi-FBE coating, ephakathi yi-adhesive layer, engaphandle yi-polyethylene layer. Umbhobho wokugquma we-3PE ngomnye umkhiqizo omtsha owenziwe ngesiseko se-FBE coating ukususela ngeminyaka yoo-1980, equlethe izigqubuthelo kunye nezigqubuthelo ze-PE(polyethylene). I-3PE inokuqinisa iipropati zoomatshini zombhobho, ukumelana nombane okuphezulu, ukungangeni manzi, ukunxitywa, kunye nokulwa nokwaluphala.
Kwi-layers yokuqala yi-fusion bonded epoxy, ubukhulu bayo bungaphezulu kwe-100μm. (FBE ＞100μm）
Umaleko wesibini unamathela, nto leyo ebangela ukuba i-epoxy kunye ne-PE zibambe iileya. (AD: 170~250μm)
Ileya yesithathu yileya ze-PE eziyi-polyethylene eziluncedo ekulweni namanzi, ukumelana nombane kunye nomonakalo ochasene noomatshini. (φ300-φ1020mm)
Ngoko ke, umbhobho wokugquma we-3PE udityaniswe neenzuzo ze-FBE kunye ne-PE. Ezi zisetyenziswa kakhulu ekuthuthweni kwamanzi, igesi kunye neoyile kwimibhobho efihliweyo.
Ixesha lokuthumela: Matshi-03-2022