Codsiga Dahaarka Anticorrosion Polyurea ee Dhuumaha

Marka loo eego kala duwanaanshaha heerkulka daahan, daahan budada epoxy iyo daahan polyurea anti-daxalka waxaa si caadi ah loogu isticmaali karaa deegaanka daxalka ciidda u dhexeeya -30 °C ama -25 °C ilaa 100 °C, halka qaab-dhismeedka saddex-lakabka polyetylen The heerkulka adeegga ugu badnaan ee daahan ka hortagga daxalka waa 70 ℃. Marka la eego dhumucda dahaarka, marka laga reebo labada dahaarka epoxy budada ah, dhumucda saddexda dahaar ee kale waxay dhammaan ka sarreeyaan 1mm, kaas oo loo kala saaro qaybta lakabyada qaro weyn.
Mid ka mid ah sheyga guud ee heerka dahaarka dhuumaha waa sifooyinka farsamada iyo jirka ee dahaarka, taas oo ah, xaaladda dhabta ah ee laga yaabo in ay la kulmaan habka dhismaha dhuumaha, sida tixgelinta foorarsiga dhuumaha ka dib alxanka iyo kor u qaadista hoose godka inta lagu jiro dhismaha dhuumaha fogfog. Qodobbada tusaha iska caabbinta heerkulka hooseeya waxaa loo qaabeeyey iyadoo loo eegayo dhexroorka tuubooyinka kala duwan, walxaha iska caabbinta saameynta ee daahan waxaa lagu go'aamiyaa burburka isku dhaca ee ay sababto gaadiidka dhuumaha iyo dib-u-celinta, caabbinta xoqan iyo caabbinta xoqan ee dahaarka waxaa lagu go'aamiyaa xagashada nabarrada marka dhuumaha la maro. Xiro iska caabin ah, iwm Marka laga eego guryaha kuwan, dhib ma laha daahan budada epoxy, qaab-dhismeedka saddex-lakab ah ama daahan polyurea, oo dhan waxay leeyihiin waxqabadka wanaagsan, laakiin marka la eego dhumucdiisuna daahan, polyetylen saddex-lakab ah ayaa ugu sarreeya qiimaha iska caabin ah. marka la buufiyo Qiimaha iska caabbinta ugu yar ee 14.7J ee daahan ilaalinta poliurea sidoo kale waa mid aad u fiican.

Maaddaama dahaarka dhuumaha fogaanta fog loo isticmaalo inta badan marka lagu daro ilaalinta cathodic, naqshadeyntadahaarka dhuumahatilmaamayaasha ayaa fiiro gaar ah u leh waxqabadka ka-hortagga-cathodic-ka ee dahaarka, sidaas darteed dejinta mashaariicda muddada-gaaban iyo muddada-dhexe ee ka-hortagga-cathodic, iyada oo la tixgelinayo isticmaalka dhuumaha fogaanta. Heerkulka ayaa markaa dejinaya mashruuca kala dirida heerkulka sare ee cathodic. Marka laga eego aragtida goobta index, way iska caddahay in tusaha kala-baxa anti-cathodic ee daahan epoxy uu sarreeyo, kala dirida ugu badan ee cathodic waa 8.5mm heerkulka qolka 28d, iyo kala dirida ugu badan ee cathodic heerkulka sare waa 6.5mm at 48h . Tilmaamayaasha dahaadhka HOL waa dabacsan yihiin, 12mm iyo 15m siday u kala horreeyaan.


Waqtiga boostada: Oct-12-2022