Kwimisebenzi yemizi-mveliso, ingakumbi kwicandelo leoyile negesi, ukuthembeka kwemibhobho yentsimbi kubaluleke kakhulu. Enye yezona ndlela zisebenzayo zokuqinisekisa ukuba le mibhobho ihlala ixesha elide kwaye ihlala ixesha elide kukusebenzisa ii-fusion bonded epoxy (FBE) coatings. Ukuqonda imigangatho ye-FBE coating kubalulekile kuye nabani na obandakanyeka ekuthengweni, ekufakweni okanye ekugcinweni kwemibhobho yamanzi yentsimbi kunye nezixhobo.
Iingubo ze-FBE zisetyenziswa kakhulu kwiintlobo ngeentlobo zeepayipi zentsimbi, kuquka iipayipi ze-SSAW (Spiral Submerged Arc Welded), iipayipi ze-ERW (Electric Resistance Welded), iipayipi ze-LSAW (Longitudinal Submerged Arc Welded), iipayipi ezingenamthungo, kunye nezixhobo ezahlukeneyo ezifana neengqiniba, ii-tee, kunye nee-reducers. Injongo ephambili yezi ngubo kukubonelela ngokhuseleko lokugqwala, okubalulekileyo ukugcina ubume besakhiwo sepayipi ixesha elide.
Yintoni iUkwaleka kwe-FBE?
I-FBE coating yi-thermosetting epoxy powder efakwa kumphezulu wombhobho wentsimbi. Inkqubo yokufaka ibandakanya ukufudumeza umbhobho ukuya kubushushu obuthile uze emva koko ufake i-epoxy powder, enyibilikisayo kwaye yenze ikhonkco eliqinileyo nomphezulu wombhobho wentsimbi. Le nkqubo idala i-coating egudileyo, eqinileyo nemelana neekhemikhali enokumelana neemeko ezinzima zokusingqongileyo.
Ukubaluleka kwemigangatho yokugquma ye-FBE
Ukuthobela imigangatho yokugquma ye-FBE kubalulekile ngenxa yezi zizathu zilandelayo:
1. Ukumelana nokugqwala: Umsebenzi ophambili we-FBE coating kukukhusela intsimbi ekugqwaleni. Imigangatho efanelekileyo iqinisekisa ukuba i-coating isetyenziswa ngokuchanekileyo kwaye ihlangabezana neemfuno zobukhulu kunye nokunamathela okufunekayo ukubonelela ngokhuseleko olufanelekileyo.
2. Uqinisekiso loMgangatho: Ngokulandela imigangatho emiselweyo, abavelisi banokuqinisekisa umgangatho weemveliso zabo. Oku kubaluleke kakhulu kwiinkampani ezivelisa imibhobho yentsimbi emininzi, umzekelo, inkampani enempahla iyonke eyi-680 yezigidi zeeyuan, imveliso yonyaka eyi-400,000 yeetoni zeemibhobho zentsimbi ezijikelezayo, kunye nexabiso lemveliso eliyi-1.8 yeebhiliyoni zeeyuan.
3. Ukuthobela imithetho: Amashishini amaninzi alawulwa ngokungqongqo kwezixhobo kunye neenkqubo asebenza kuzo. Ukuthobela imigangatho yokugquma ye-FBE kunceda iinkampani ukuba ziphephe imiba yezomthetho kwaye zigcine udumo lwazo kwimarike.
4. Ihlala ixesha elide kwaye ithembekile: Ukusetyenziswa ngokufanelekileyo kwengubo ye-FBE kunokwandisa ubomi benkonzo yemibhobho yentsimbi. Oku kuthembeka kubalulekile kumashishini axhomekeke kule mibhobho ukuthutha amanzi, ioyile kunye negesi.
IsitshixoImigangatho yokugquma ye-FBE
Xa ucinga ngeengubo ze-FBE, kubalulekile ukuqonda iikhrayitheriya eziphambili zokusetyenziswa kwazo:
- I-ASTM D638: Lo mgangatho uchaza iipropati zokuxinana kweeplastiki (kuquka neengubo ze-FBE) ukuqinisekisa ukuba ziyakwazi ukumelana noxinzelelo oludibana nalo xa zisetyenziswa.
- ASTM D3359: Lo mgangatho uvavanya ukunamathela kwengubo kwi-substrate, nto leyo ibalulekileyo ekuqinisekiseni ukuba ingubo ye-FBE ihlala ingaguquki ngokuhamba kwexesha.
- AWWA C213: Lo mgangatho ujongana ngqo neemfuno ze-epoxy coatings ezidityaniswe ne-fusion kwimibhobho yamanzi yentsimbi, unika isikhokelo sokusetyenziswa, ukuhlolwa, kunye novavanyo.
ukuququmbela
Ngamafutshane, ukuqonda imigangatho yokugquma ye-FBE kubalulekile kuye nabani na obandakanyeka kushishino lweepayipi zentsimbi. Ukugxila ekukhuseleni ukugqwala, ukuqinisekiswa komgangatho, kunye nokuthotyelwa kwemithetho, le migangatho idlala indima ebalulekileyo ekuqinisekiseni ubomi benkonzo kunye nokuthembeka kweepayipi zentsimbi kunye nezixhobo. Iinkampani ezibeka ixabiso eliphezulu ekuthobeleni le migangatho, njengalezo zinamandla okuvelisa kunye neempahla, azinakuphucula kuphela umgangatho wemveliso kodwa ziqinise isikhundla sazo kwimarike ekhuphisanayo. Njengoko imfuno yeepayipi zentsimbi ezihlala ixesha elide nezithembekileyo iqhubeka ikhula, ukubaluleka kweengubo ze-FBE kunye nemigangatho yokusetyenziswa kwazo kuya kuqhubeka kukhula.
Ixesha leposi: Juni-11-2025