Iplastiki -umbhobho wentsimbi ogqunywe, uhlobo olutsha lombhobho odityanisiweyo, udibanisa amandla aphezulu ombhobho wentsimbi kunye nokumelana nokugqwala kwengubo yeplastiki. Isetyenziswa ngokubanzi kunikezelo lwamanzi kunye ne-drainage, ukukhuselwa komlilo, kunye nokuveliswa kwamandla. Inkqubo yayo yokuvelisa ichaphazela ngokuthe ngqo ukusebenza kwemveliso kunye nobomi benkonzo, nto leyo eyenza ukuqonda le nkqubo kubaluleke kakhulu kubo bobabini abathengi kunye neekontraka.
Iplastiki -imveliso yombhobho wentsimbi eqatywe iqala ngonyango lwangaphambili. Okokuqala, umbhobho utyhutyha umphezulu, ngokuqhelekileyo usebenzisa i-sandblasting okanye ukudubula kwe-sandblasting ukususa i-rust, i-oxide layers, kunye namabala e-oyile, iqinisekisa inqanaba lokucoceka komphezulu we-Sa 2.5 okanye ngaphezulu. Ukufudumala, ngokuqhelekileyo kulawulwa malunga ne-200 degree, kwandisa ukunamathela kwengubo yeplastiki kumbhobho wensimbi. Unyango lwangaphambili lubalulekile ekuqinisekiseni umgangatho wokugquma; naziphi na iziphene ezikumphezulu zingakhokelela kwi-delamination yokwambathisa okanye umhlwa.
Okulandelayo kuza inkqubo yokugquma iplastiki, equka izigaba ezibini: ukugquma kwangaphakathi nangaphandle. Ukwaleka kwangaphakathi ngokuqhelekileyo kusebenzisa iindlela ezishushu-zediphu okanye iindlela zokutshiza nge-electrostatic ukubambelela ngokulinganayo umgubo weplastiki, onje ngepolyethylene (PE) kunye ne-epoxy resin (EP), kumphezulu ongaphakathi wombhobho wentsimbi. Ukushushu-inkqubo yokwambathisa idiphu ibandakanya ukuntywiliselwa umbhobho wentsimbi kubushushu obuphezulu{4}}bungumgubo weplastiki otyhidiweyo ukuze wenze ulutya oluxineneyo lwangaphakathi. Ukutshiza nge-Electrostatic kusebenzisa umgaqo we-adsorption yentlawulo ukubambelela ngokulinganayo umgubo, kulandele{6}}ukunyanga ubushushu obuphezulu. Iinkqubo zokugquma zangaphandle ziyafana, kodwa zibeke phambili ukunxiba kunye nokumelana nemozulu. I-polyethylene eguqulwayo okanye izinto ze-polypropylene zihlala zisetyenziselwa ukujamelana neemeko ezinzima zeendawo zangaphandle.
Emva kokugquma, umbhobho wensimbi ungena kwinqanaba lokunyanga. Ukushisa kokunyanga kunye nexesha kuyahluka ngokuxhomekeke kuhlobo lweplastiki. Umzekelo, i-epoxy coatings ikholisa ukunyanga kwi-200℃kwimizuzu engama-20 ukuya kwengama-30, ngelixa iingubo ze-polyethylene zifuna ubushushu obuphantsi kodwa ixesha elide. I-undercuring iya kubangela ukungonelanga kobulukhuni bokugquma, ngelixa ukugqithisa kunokubangela i-embrittlement.
Ekugqibeleni, imveliso egqityiweyo ihlolwa kunye nokupakishwa. Imveliso egqityiweyo ijongwa ngokubonakalayo, umlinganiselo wobunzima, uvavanyo lokubambelela, kunye novavanyo loxinzelelo ukuze kuqinisekiswe ukuba i-coating ifana kwaye ayinamaqamza kwaye ihlangabezana nemigangatho yobukhulu obuqhelekileyo (ngokuqhelekileyo Inkulu kuno okanye ilingana no-0.3mm kwiingubo zangaphakathi kunye ne-Greater than or ilingana no-0.5mm kwiingubo zangaphandle). Iimveliso ezifanelekileyo zilebhile kwaye zipakishwe kumanzi{4}}ukupakishwa kobungqina ukunqanda umonakalo wokwaleka ngexesha lothutho.
Inkqubo yemveliso yeplastiki{0}}yemibhobho yentsimbi egqunyiweyo idibanisa imathiriyeli yenzululwazi kunye ne-thermodynamics, ifuna ulawulo oluchanekileyo kwinyathelo ngalinye. Njengoko iimfuno zolwakhiwo lweziseko ezingundoqo zehlabathi zikhula, ukulungiswa kwale nkqubo kuya kuqhubeka nokuphucula ukusebenza kombhobho kunye nokubonelela ngezisombululo ezithembeke ngakumbi kwimarike yorhwebo lwangaphandle.
