Dahaarka polyetylen-ka-hortagga ah ee dhuumaha 3PE

Dahaarka polyethylene -ka ee ka hortagga daxalka guud ahaan waa dahaar saddex lakab ah oo polyethylene ah oo ka hortagga daxalka, oo loo soo gaabiyo 3PE. Lakabka hoose badanaa waa dahaar budada epoxy ah, lakabka dhexena waa dhejis, lakabka dibaddana waa dahaar polyethylene ah.

Qaab-dhismeedka Dahaarka Ka-hortagga

Qaab dhismeedka saddex-lakab ee polyetylen dahaarka anticorrosive waxaa loo soo gaabiyaa sida 3PE. Lakabka hoose waa daahan budada epoxy, lakabka dhexe waa xabag, lakabka sarena waa polyetylen.

Performance

Lakabka koowaad ee 3PE waa daahan epoxy, lakabka labaad waa koollo, lakabka saddexaadna waa daahan polyetylen extruded. Lakabyada ayaa si adag ugu xidhan midba midka kale si ay u sameeyaan qaab dhismeed isku dhafan, oo midba midka kale kaabaya awoodiisa. Waxay isticmaashaa xoogga isku-xidhka xooggan ee u dhexeeya budada epoxy iyo dusha tuubada birta si loo hagaajiyo adhesion; waxayna isticmaashaa xoogga farsamada ee aadka u wanaagsan, xasiloonida kiimikada, dahaarka, iska caabinta xididdada geedka, iyo iska caabbinta biyaha ee polyetylen-ka fidsan si loo hagaajiyo waxqabadkeeda guud. Tani waxay ka dhigaysaa waxqabadka guud ee daahan saddex-lakabka ah ee PE anticorrosive ka sii caan ah oo dhamaystiran, ku habboon jawi adag oo leh shuruudaha sare ee guryaha farsamada, iska caabinta carrada, iyo caabbinta biyaha ee lakabka daboolaya, sida ciidda dhagaxa, qaybaha dhagaxyada, meelaha oo leh qoyaan badan oo ciidda ah, iyo meelaha leh xididdada dhirta horumaray.

Codsiyada Shaqaalaha Cusub

Ka hor inta codsanaya daahan anticorrosive ah, dusha tuubada birta waa in la nadiifiyaa dufan, wasakh, iyo lifaaqyo kale, iyo dusha sare waa in la pretreated ka dib markii preheating tuubada birta heerkul ah 40-60 ℃. Tayada pretreatment dusha sare waa in ay la kulmaan shuruudaha Sa2.5 heerka "Surface miridhku Fasalka iyo miridhku ka saarida Fasalka Birta ka hor Rinjiyeynta" GB/T 8923, iyo qaabka barroosinka qoto dheer waa in ay gaaraan 50μm-75μm. Weld alxanka, bursyada, iyo wasakhda kale ee dusha tuubada birta ah waa in meesha laga saaraa.

Isticmaal il kulaylka aan wasakhda lahayn si aad u kululayso tuubada birta si aad u hesho heerkul daahan oo ku haboon, oo si siman u mari daahan budada epoxy dusha tuubada birta. Xabagta waa in lagu dabaqaa inta lagu jiro habka daaweynta budada epoxy. Lakabka polyetylenka waxaa lagu dahaadhay karaa iyadoo la isticmaalayo habka extrusion dheer ama habka duubista lateral. Tuubooyinka birta ee leh dhexroor magaceedu ka weyn yahay 500mm, habka duubista dambe ayaa lagula talinayaa. Markaad isticmaalayso habka duubista lateral, hubi in polyetylenka labada dhinac ee isku dhafka ah iyo polyetylenka labada dhinac ee alxanka ay si buuxda u duuban yihiin oo isku duuban yihiin, kana ilaali dusha sare ee polyetylen in la jajabiyo. Markaad isticmaalayso habka extrusion-ka dheer, waa inaysan jirin wax banaan ah oo ka jira labada dhinac ee alxanka. Ka dib marka lakabka polyetylenka la dahaadho, hubi in daaha epoxy-ga isku qasan uu si buuxda u bogsaday, ka dibna ku qabooji biyo ilaa heerkulbeeg bir ah oo aan ka sarreyn 60 ℃.

Repair

Marka cilado laga helo dhuumaha 3PE, waxyeelada ka yar ama la mid ah 30mm, waxaa lagu talinayaa in la isticmaalo shucaaca iskutallaabta ah ee dayactirka polyetylenka. Markaad hagaajinayso, marka hore ka saar wasakh meesha dhaawacan oo qallaji lakabka polyetylenka. Kadibna googooy lakabka polyetylenka ee meesha dhaawacan goobaabin, cidhifkana waa in loo rogaa xagal cad. Ka buuxi godka koollo u dhigma balastar-ka-dayactirka, ka dibna ku dheji balastarka dayactirka. Baaxadda balastarka dayactirka waa inuu xaqiijiyaa in cidhifku ugu yaraan 100mm ka fog yahay cidhifka daloolka lakabka polyetylenka. Markaad dhejisid balastarka, kuleyli markaad ku rogrogto rullaluistemadka ama ku tuuji galoofyada kulaylka u adkaysta si aad hawada uga saarto ilaa xabagta ku wareegsan balastarka dayactirka ay si siman u qulqulayaan.

Wixii waxyeelo ah oo ka badan 30mm, marka hore ka saar wasakh meesha dhaawacan, qallaji lakabka polyetylenka, oo jarjar lakabka polyetylen ee aagga dhaawacan meel wareeg ah, cidhifkuna waa in loo rogaa xagal cad. Ka buuxi godka koollo u dhigma balastar-ka-dayactirka, ka dibna ku dheji balastarka dayactirka. Ugu dambeyntii, ku duub cajalad kuleyl ah oo la yareyn karo agagaarka goobta dayactirka, iyo ballaca duubista waa inuu ahaadaa ugu yaraan 50mm ka weyn dhinac kasta oo ah balastar dayactirka.

Haddii kale, dusha waa la nadiifin karaa marka hore, ka dibna daahan epoxy dareere ah oo laba ka kooban ayaa loo isticmaali karaa anticorrosion-ka. Dhumucda filimka qallalan waa inay la mid tahay tan tuubada ugu weyn, ka dibna dhejinta dayactirka ama cajalad kuleyl ah ayaa lagu dabaqi karaa.

Posts Related:

PECOAT Dahaarka budada ee Polyethylene ee Dhuumaha Biyaha la cabbo Isku-xidhka Qufulka Daaha budada Naylon, Naylon 11 budada ah ee Kaashashka dabacsan