Anti-corrosive Polyethylene Txheej rau 3PE Pipeline
Cov txheej polyethylene tiv thaiv xeb feem ntau yog peb txheej txheej polyethylene tiv thaiv xeb, luv ua 3PE. Txheej hauv qab feem ntau yog epoxy hmoov txheej, txheej nruab nrab yog cov nplaum, thiab txheej sab nraud yog polyethylene txheej.
Anticorrosive Txheej Txheej Txheem
Peb txheej txheej polyethylene anticorrosive txheej yog abbreviated li 3PE. Cov txheej hauv qab yog epoxy hmoov txheej, nruab nrab txheej yog nplaum, thiab txheej txheej yog polyethylene.
Performance
Thawj txheej ntawm 3PE yog epoxy txheej, txheej thib ob yog nplaum, thiab txheej thib peb yog extruded polyethylene txheej. Cov khaubncaws sab nraud povtseg yog nruj nreem khi rau ib leeg los ua ib qho kev sib xyaw ua ke, ua kom muaj zog ntawm ib leeg. Nws siv lub zog sib txuas ntawm epoxy hmoov thiab steel yeeb nkab nto los txhim kho adhesion; thiab siv cov khoom siv zoo heev, tshuaj lom neeg ruaj khov, rwb thaiv tsev, tiv thaiv cov hauv paus nkag, thiab dej tsis kam ntawm extruded polyethylene los txhim kho nws cov kev ua tau zoo tag nrho. Qhov no ua rau tag nrho cov kev ua tau zoo ntawm peb-txheej PE anticorrosive txheej yog qhov tseem ceeb thiab dav, haum rau qhov hnyav ib puag ncig nrog cov kev xav tau siab rau cov khoom siv kho tshuab, kev ntxhov siab hauv av, thiab dej tsis kam ntawm txheej txheej, xws li gravel av, ntu pob zeb, thaj chaw. nrog cov av noo siab cov ntsiab lus, thiab thaj chaw nrog tsim cov cag ntoo.
Daim ntawv thov
Ua ntej siv cov tshuaj tiv thaiv kab mob, qhov saum npoo ntawm cov yeeb nkab steel yuav tsum tau ntxuav cov roj, av, thiab lwm yam, thiab qhov chaw yuav tsum tau pretreated tom qab preheating cov yeeb nkab steel ntawm qhov kub ntawm 40-60 ℃. Qhov zoo ntawm kev kho kom zoo yuav tsum ua tau raws li qhov yuav tsum tau ua ntawm Sa2.5 qib "Nto Hlau Qib thiab xeb tshem tawm qib ntawm cov hlau ua ntej pleev xim" GB / T 8923, thiab cov qauv thauj tog rau nkoj qhov tob yuav tsum ncav cuag 50μm-75μm. Weld slag, burrs, thiab lwm yam impurities nyob rau saum npoo ntawm cov yeeb nkab steel yuav tsum tau muab tshem tawm.
Siv cov cua sov uas tsis muaj kuab paug los ua kom sov cov yeeb nkab steel rau qhov tsim nyog txheej kub, thiab sib npaug siv cov epoxy hmoov txheej rau saum npoo ntawm cov yeeb nkab steel. Cov nplaum yuav tsum tau siv thaum lub sij hawm epoxy hmoov curing txheej txheem. Cov txheej txheem polyethylene tuaj yeem coated siv cov txheej txheem longitudinal extrusion los yog txheej txheem wrapping. Rau cov yeeb nkab steel nrog lub nominal txoj kab uas hla ntau dua 500mm, cov txheej txheem wrapping yog pom zoo. Thaum siv cov txheej txheem qhwv sab nraud, xyuas kom meej tias cov polyethylene ntawm ob sab ntawm qhov sib tshooj thiab cov polyethylene ntawm ob sab ntawm cov vuam yog dov thiab compacted, thiab tiv thaiv cov polyethylene txheej saum npoo los ntawm crushed. Thaum siv cov txheej txheem longitudinal extrusion, yuav tsum tsis muaj voids ntawm ob sab ntawm weld. Tom qab txheej txheej polyethylene yog coated, xyuas kom meej tias cov fused epoxy txheej yog kho kom zoo, thiab tom qab ntawd txias nws nrog dej rau cov yeeb nkab steel kub tsis siab tshaj 60 ℃.
kho
Thaum pom qhov tsis xws luag ntawm 3PE kav dej, rau kev puas tsuaj tsawg dua lossis sib npaug ntawm 30mm, nws raug nquahu kom siv hluav taws xob txuas txuas txuas polyethylene kho thaj ua rau thaj. Thaum kho, ua ntej tshem tawm cov av ntawm qhov chaw puas thiab ua rau cov txheej txheem polyethylene. Tom qab ntawd txiav cov polyethylene txheej ntawm qhov chaw puas rau hauv lub voj voog, thiab cov ntug yuav tsum tig mus rau hauv lub kaum sab xis. Sau lub qhov nrog cov nplaum uas phim qhov kho thaj chaw, thiab tom qab ntawd lo rau qhov kho thaj. Qhov loj ntawm qhov kho thaj yuav tsum xyuas kom meej tias cov ntug yog tsawg kawg yog 100mm deb ntawm ntug ntawm lub qhov hauv cov txheej polyethylene. Thaum tuav lub thaj, ua kom sov thaum dov nws nrog cov menyuam los yog nyem nws nrog cov hnab looj tes tiv thaiv tshav kub kom tshem tawm cov cua kom txog thaum cov nplaum nyob ib ncig ntawm qhov kho qhov sib npaug.
Rau kev puas tsuaj ntau dua 30mm, ua ntej tshem tawm cov av ntawm qhov chaw puas, ua kom cov txheej txheej polyethylene, thiab txiav cov txheej polyethylene ntawm qhov chaw puas rau hauv lub voj voog, thiab ntug yuav tsum tig mus rau hauv lub kaum sab xis. Sau lub qhov nrog cov nplaum uas phim qhov kho thaj chaw, thiab tom qab ntawd lo rau qhov kho thaj. Thaum kawg, qhwv lub tshav kub shrinkable daim kab xev nyob ib ncig ntawm qhov chaw kho, thiab lub wrapping dav yuav tsum yog tsawg kawg yog 50 hli loj tshaj txhua sab ntawm kho thaj.
Xwb, qhov chaw tuaj yeem raug ntxuav ua ntej, thiab tom qab ntawd ob lub ntsiab lus ua kua epoxy txheej tuaj yeem siv los tiv thaiv corrosion. Lub thickness ntawm zaj duab xis qhuav yuav tsum yog tib yam li cov raj xa dej loj, thiab tom qab ntawd kho thaj chaw los yog cov ntaub ntawv kub shrinkable tuaj yeem siv tau.
Nyob zoo sawv ntxov,
peb xav tau PE txheej nrog European Food pom zoo thiab American FDA.
Qhov zoo tshaj plaws txog,
Andre