I-Anti-corrosion ye-galvanized steel pipe welding: Emva konyango lomphezulu, i-zinc yokutshiza eshushu. Ukuba igalvanizing ayinakwenzeka kwisiza, ungalandela indlela yokuthintela ukubola kwindawo: ibrashi ye-epoxy zinc-rich primer, i-epoxy micaceous iron intermediate paint, kunye ne-polyurethane topcoat. Ubukhulu bubhekisa kwimigangatho efanelekileyo.

Iimpawu zenkqubo yombhobho wentsimbi
1. Ukulungiswa kwe-sulfate galvanizing: Inzuzo ye-sulfate galvanizing kukuba ukusebenza kwangoku kuphezulu njenge-100% kunye nesantya sokubeka ngokukhawuleza, esingenakulinganiswa nezinye iinkqubo ze-galvanizing. Ngenxa yokuba icrystallization yokwambathisa ayilunganga ngokwaneleyo, isakhono sokusasazwa kunye nobuchule bokucwenga obunzulu buhlwempuzekile, ngoko kufanelekile kuphela kwimibhobho ye-electroplating kunye neengcingo ezinemilo yejometri elula. Inkqubo ye-sulfate electroplating ye-zinc-iron alloy iphucula inkqubo ye-sulfate ye-galvanizing yendabuko, igcina kuphela i-zinc sulfate yetyuwa engundoqo, kunye nokulahla amanye amacandelo. Kwifomula yenkqubo entsha, isixa esifanelekileyo setyuwa yentsimbi siyongezwa ukwenza i-zinc-iron alloy coating ukusuka kwisitya sokuqala sesinyithi. Uhlenga-hlengiso lwenkqubo alukhuthazi nje kuphela iingenelo zenkqubo yantlandlolo yobuchule obuphezulu bangoku kunye nesantya sokubeka ngokukhawuleza kodwa ikwaphucula kakhulu isakhono sokusasazwa kunye nobuchule obunzulu bokucwenga. Ngaphambili, iinxalenye eziyinkimbinkimbi azikwazi ukugqithwa, kodwa ngoku zombini iindawo ezilula kunye neziyinkimbinkimbi zinokuthi zifakwe, kwaye ukusebenza kokukhusela ku-3 ukuya ku-5 amaxesha aphezulu kunomnye wesinyithi. Ukuziqhelanisa nemveliso kubonakalise ukuba i-electroplating eqhubekayo yeengcingo kunye nemibhobho ineenkozo zokwambathisa ezicolekileyo neziqaqambileyo kunezo zakuqala, kwaye isantya sokubekwa siyakhawuleza. Ubunzima bokugquma bufikelela kwimfuno phakathi kwemizuzu emi-2 ukuya kwemi-3.

2. Ukuguqulwa kwe-sulfate zinc plating: I-sulfate electroplating ye-zinc-iron alloy igcina kuphela i-zinc sulfate yetyuwa ye-sulfate ye-zinc plating, kunye nezinto eziseleyo ezifana ne-aluminium sulfate kunye ne-alum (i-potassium aluminium sulfate) inokongezwa kunye ne-sodium hydroxide ngexesha unyango lwesisombululo seplating ukuvelisa imvula yehydroxide enganyibilikiyo ukuze isuswe; kwizongezo ze-organic, i-powdered carbon activated yongezwa kwi-adsorption kunye nokususwa. Uvavanyo lubonisa ukuba i-aluminium sulfate kunye ne-potassium aluminium sulfate kunzima ukuyisusa ngokupheleleyo ngexesha elinye, elinempembelelo ekukhanyeni kwengubo, kodwa ayinzima kwaye ingasetyenziselwa ukususwa. Ngeli xesha, ukukhanya kwengubo kunokubuyiselwa. Isisombululo sinokudibaniswa ngokubhekiselele kumxholo wamacandelo afunwa yinkqubo entsha emva kokunyanga, kwaye ukuguqulwa kugqityiwe.

3. Isantya sokubeka ngokukhawuleza kunye nokusebenza okugqwesileyo kokukhusela: Ukusebenza kwangoku kwenkqubo ye-sulfate electroplating zinc-iron alloy iphezulu njenge-100%, kwaye isantya sokumisa ngokukhawuleza asifani nayo nayiphi na inkqubo ye-galvanizing. Isantya sokuhamba sombhobho ococekileyo ngu-8-12m / min, kunye nobukhulu obuqhelekileyo bokugquma ngu-2m / min, okunzima ukufezekisa ngokuqhubekayo kwe-galvanizing. Ukwaleka kuqaqambile, kuthambile, kwaye kuthandeka emehlweni. Ngokomgangatho wesizwe we-GB/T10125 "Uvavanyo lwe-Artificial Atmosphere Test-Salt Spray Test" indlela, i-coating is intact kwaye ayitshintshi iiyure ze-72; inani elincinci lomhlwa omhlophe livela kumphezulu wengubo emva kweeyure ezingama-96.

4. Imveliso ecocekileyo ekhethekileyo: Umbhobho wensimbi owenziwe ngentsimbi uthatha inkqubo ye-sulfate electroplating zinc-iron alloy, oku kuthetha ukuba i-slots yomgca wokuvelisa i-perforated ngqo kwaye isisombululo asiqhutywa okanye siphuphuma. Inkqubo nganye yenkqubo yokuvelisa iqulethe inkqubo yokujikeleza. Izisombululo zetanki nganye, oko kukuthi isisombululo se-asidi kunye ne-alkali, isisombululo se-electroplating, kunye nesisombululo sokukhanya kunye ne-passivation, zihlaziywa kuphela kwaye zisetyenziswe kwakhona ngaphandle kokuvuza okanye ukukhutshwa ngaphandle kwenkqubo. Umgca wemveliso unamatanki okucoca ama-5 kuphela, ahlaziywa kwaye asetyenziswe rhoqo, ngokukodwa kwinkqubo yokuvelisa ngaphandle kokuveliswa kwamanzi amdaka emva kokudlula.

5. Ubuncinci bezixhobo ze-electroplating: I-electroplating yeepayipi zetsimbi ze-galvanized zifana ne-electroplating yeengcingo zobhedu, zombini i-electroplating eqhubekayo, kodwa izixhobo zokucoca zihluke. Itanki yokucwenga eyilelwe iimpawu ezibhityileyo zocingo lwentsimbi inde kwaye ibanzi kodwa ayinzulu. Ngexesha le-electroplating, ucingo lwentsimbi ludlula emngxunyeni kwaye lusasazeke kumanzi olwelo ngendlela echanekileyo, lugcina umgama omnye komnye. Nangona kunjalo, imibhobho yentsimbi efakwe isinyithi yahlukile kwiingcingo zentsimbi kwaye ineempawu zayo ezizodwa. Isixhobo setanki sinzima ngakumbi. Umzimba wetanki uqulunqwe ngamalungu aphezulu nangaphantsi. Inxalenye ephezulu yitanki yokucoca, kwaye inxalenye engezantsi isisombululo sokugcina itanki yokugcina, eyenza umzimba wetanki we-trapezoidal onqabileyo phezulu kunye nobubanzi ezantsi. Kukho umjelo we-electroplating yemibhobho yentsimbi efakwe kwi-tank yokucoca. Kukho imingxunya emibini emazantsi etanki edityaniswe kwitanki yokugcina esezantsi, kwaye yenze ujikelezo lwesisombululo seplating kunye nenkqubo yokusebenzisa kwakhona ngempompo engaphantsi kwamanzi. Ngoko ke, ukucakwa kwemibhobho yentsimbi kuyaguquguquka, kanye njengokucolwa kweengcingo zentsimbi. Ngokungafaniyo ne-electroplating yeengcingo zentsimbi, isisombululo se-electroplated galvanized steel pipes siyasebenza.