Anti- tuyo asiye asiye yi ay mbir yuñ mëna def ci liggéeyukaay yu bees yi ak tabax infrastructure yi. Kalite seen liggéey bi ñuy sos dafay wane ni seen liggéey ak seen liggéey. Ginaaw li ñuy laaj ci wàllu bañaale corrosion ci gasoduk yi ci petrol bi, gaz, chimique, ak ingenieur municipaal ñu ngi wéy di yokk, xaralay defar yi ñuy jëfandikoo ngir anti{3}} tuyo asiye asiye ñu ngi koy def itam. Artikle bii dafay dugg ci liggéeyu sos core ngir anti{5}} tuyo asiye asiye, di joxe jàngat bu mat sëkk ci liggéey bi ci liggéey yu am solo yi ba ci ay detay yu am solo ci wàllu xarala.
I
Anti- tuyo asiye asiye yu am solo ci benn substrat tige buñ yamale bu am benn wala ñaari layer yu anti{1}} materiyel materiel ci benn anam, defar benn structure composite bu "materialu base + anti- couche couche." Li gëna am solo ci liggéey bi mooy fexe ba xam-xam mekanik yi ci tige asiye bi (lu melni compression ak mbañeel) ci noonu lañuy doxalee ci anam wu jaar yoon, dëgëraay bi, ak stabilite chimik bu anti{5}} couche couche ngir mëna am lu yàgg {6} aar ci tuyo bi ci environmaa yi (lu melni humidité bu kawe, aside xorom, alkali, ak spray xorom).
Tige asiye bu cosaan dafay aju ci benn "rolling + soudure"-a bu tàng bi dafay tàng { 2} { 2} ràndewu wala sedd- nañu ko ci biir bu amul tubular, muy soudure wala submergered {4}arc soudure ngir forme benn yaram buy wéy. Anti {(6}} xarala yu bees yi dafay tabax ci kaw fondasioŋ bii, dafay indi yeneen corrosion ci tuyo asiye ci pajum surface, coating, wala tëye.
II. Firnde bu leer ci anam yu yomb
1. Moyt
Dooley lëkkaloo gi am ci digganté anti- couche couche ak tige asiye bi mingi aju ci setal ak buum gi ci kaw tuyo bi. Sudee diwu residuel, xumb, wala eskaal dafay des ci kaw suuf, anti{2}} materiyel bi mënul nekk ci anam wu jaar yoon, loolu mooy indi jafe-jafe yu ci melni bulging ak peeling. Kon, presatoire mooy jéego bu am solo bi njëkka am ci liggéey bi.
Liggéey yiñ def ci anam wu jaar yoon ñooy:
Dindi rust mecanical: Tegtal bu gàtt wala jumtukaayu suuf dafay jëfandikoo bu kawe- shot asiye wala suuf quartz ngir am njeexital ci kaw tuyo bi, dindi eskaal ak defar benn surface bu dëgër (bu bari dafay laaj xóotaayu ancre bu 40-100 μm).
Setu chimique: solvant organik (lu melni acetone) wala asid-base (lu melni asid fosforik) dañu koy jëfandikoo ngir dindi grease residual ak rust bu ndaw, lépp di fexe surface bi amul benn contaminant.
Day naan: air bu tàng wala nga waw infrared ngir saytu nivo bi ci kaw tige asiye bi ba ci niveau bu woyof lool (humidité<5%) to prevent bubbles during subsequent coating.
2. Anti{) formating layer: méngale liggéey yu mag yi
Buñu sukkandikoo ci xeetu anti({0}} matrision bi ak senaario aplikaasioŋ bi, mën nañu xaaj ay tige yuy tere antigne- ñaari yoon yu am solo:
(1) Ñatti polyethylene (3PE) anti{3PE) anti{3PE) {3PE)
3PE anti{1}corsion dafay boole poudre epoxy bu boole (FBE) ci suufu couche bu digg bi + couche outéra d'écrée bi". Dafay boole adhésion bu bari ci poudre epoxy bi ak jafe-jafe yi am ci environmaa bi ci polyethylene bi, te mën na nekk lu baax ci environmaa yi, lu ci melni gasoduk petroleum ak gaz. Ni ñuy doxalee mooy:
Coating: électrostatical ci poudre epoxy bu fused (diggante bu wuute.
Coating intermédiaire: Adhesif (lu melni copolymer polyethylene buñ soppi) dañu koy tàngal ci anam wu gëna neex (lu tollu ci 250 degre) ak extruder, ba noppi ñu jël ko ci biti ci couche epoxy ci moule, ak 170-250 μm;
Extrusion bi ci biti: High{- polyethylene (HDPE) dañu koy seey ba noppi di ko boole ci extruder ngir defar benn layer buy aar ci biti, ak 1.8-3.7 mm (def ci rayon ultraviolet ak yàqu-yàqu ci mekanik).
(2) Epoxy arlu anti-rrosion {- mu méngoo ak tuyo yu ndaw ak diggi {3}
Doxalin bii dafay jëfandikoo resine epoxy ak pitch ton ci këriñ bi gëna mag, ba noppi nekk anti{0}} diseer ci kaw tuyo asiye bi di broos wala dipping. Màndarga yi ci njëg yi yomb nañu, waaye dafay aju ci tàngooru environmaa bi (soxlaw lu ëpp 5 degre) ak niir, te dañu koy faral di jëfandikoo ngir ndox ak tuyo yiy wal wala ay projet yu yam ci diir bu gàtt.
(3) Sit - ab pexe buy yokk ci senaario yu amul fenn
Ci wàllu gasoduk yu woyof yiy yóbbu ñi dul- ay media (lu melni ndox mu naan), mën nañu ko jëfandikoo ci mortar simant bu centrifugal (Nwaterne mortar (Ndouter) 0.4{6} 1000) ci biir tuyo bi ci biir bi ngir defar benn layer buy lim ak dëgëraay bu 10{70mm. Ni ñuy jëfandikoo mooy njëg yu yomb te baña sol, waaye amna doole bu néew ci corrosion chimik.
1
Ginaaw ñu defaree ko, anti- coating coating dafay am controle bu dëgër:
Test thickness: Natt dëgëraay bi ci layer bu nekk jëfandikoo gauge magnetik wala ultrasonic bu dëgër (lu melni, ngir 3PE anti{3}}crosion coatrosion, coatrosion epoxy bi dafa wara gëna baax wala mu tollu ci 80 μm, te couche polyetylene bi dafa wara gëna mag wala lu tollu ci 2mm).
Test adhésion: Saytu dooley lëkkaloo gi am ci diggante anti{-ccoatr ak tuyo asiye bi jëfandikoo cross{1}hat wala pull-off (ci anam wu gëna tar wala mu tollu ci 5MPa).
Detection electrique: Scanne surface bi ci anti{- kookrrosion bu kawe-frequency, sonde bu kawe- voltage ngir gis pinoles wala yàqu-yàqu (plattène point de terre) wala mu tollu ci 25kV).
Inspection cours: Xool ni amul ay njuumte yu melni bubble, crack, ak sag, di fexe ba am surface bu nooy wala sax.
III. Process Innovation ak Njaayum ëlëg
Ak yokkute ci laaju usine yi, anam wi ñuy forme ngir am corrosion {- tuyo asiye asiye mingi jëm kanam ci anam wu gëna baax, xarala yu am xel, ak xaritoo environmaa bi:
Li ñuy woowe prefabrication: Ligné yu wéy yi dañuy boole "liggéeyu tige steel, prestreatment, ak anti{0grosion coating," di wàññi cycle de production ak gëna mëna ànd;
Defar ay mbir yu bees ci wàllu antignrosion: Aplikaasioŋ yu melni nano- mu soppi poudre epoxy ak graphene-ennhanced polyeteteteteene dafay yokk dundu corrosion (ba 50 at wala lu ëpp);
Exploration ci anam yu wert: wàññi jëfandikoo solvant organik (lu melni, wecci solvant buñ miin { 2} ngëneel yu lalu ci ndox ak ndoxu ndox- bu sukkandiko ci epoxy) dafay wàññi gaz VOC yi.
Tëjteel
Liggéeyu defar bi ngir corrosion { 0}} tuyo asiye asiye yi dafay boole xam-xam bi ci wàllu science materiel, defar mekanik, ak ingenieur chimique. Liko dalee ci tapise bi ci base bi ba ci jëfandikoo bu jaar yoon ci anti{2}korrosion coating, jéego bu nekk dafay laaj nga saytu parametre yi ak detay yi. Ak yokkute yu xarala yu bees yi, corrosion- tuyo asiye asiye du méngoo ak li ñuy laaj ci bañaale corrosion bi waaye itam def ay jéego yu am solo ci di wottu xel (lu melni defar {5}in kaptër corrosion) ak jëmmal bu woyof, di joxe ndimbal lu gëna wóor ci tabax infrastructure global.
