Pre insulated yeeb nkab rau hauv av txias yog ib txheej rwb thaiv tsev tsim los ntawm polyurethane ua npuas ncauj, uas muaj cov yam ntxwv zoo xws li lub teeb bulk ntom, siab zog, rwb thaiv tsev, suab rwb thaiv tsev, nplaim retardancy, txias tsis kam, anti-corrosion, tsis muaj dej nqus, thiab yooj yim. kev tsim kho sai. Nws tau dhau los ua cov khoom lag luam tsis tseem ceeb rau kev rwb thaiv tsev, dej tsis qab, sealing, thiab lwm yam lag luam xws li roj av, tshuaj, hluav taws xob, kev tsim kho, kev thauj mus los, thiab tub yees.
Txheej txheem txheej txheem
Thawj txheej: ua haujlwm steel yeeb nkab txheej
Raws li tus tsim thiab cov neeg yuav tsum tau muaj, seamless yeeb nkab (GB8163-87) kauv welded yeeb nkab (GB9711-88; SY/T5038-92) thiab ncaj seam welded yeeb nkab (GB3092-93 ) feem ntau xaiv. Tom qab qhov saum npoo ntawm cov yeeb nkab steel raug kho nrog cov cuab yeej siv tshuaj tua blasting thiab xeb tshem tawm, qhov kev tshem tawm xeb ntawm cov yeeb nkab steel tuaj yeem ncav cuag qib Sa2 hauv GB8923-1988 tus qauv, thiab qhov chaw roughness tuaj yeem ncav cuag R{{6} }}.5 micrometers hauv GB6060.5-88 tus qauv.
Ob txheej: polyurethane rwb thaiv tsev txheej
Txhaj tshuaj polyurethane ua npuas ncauj rau hauv cov kab noj hniav ntawm cov yeeb nkab steel thiab lub plhaub sab nraud nrog lub tshuab ua npuas siab siab ib zaug. Feem ntau hu ua "pipe in pipe foaming process". Nws cov haujlwm muaj xws li kev tiv thaiv dej, rwb thaiv tsev, thiab txhawb nqa tus kheej qhov hnyav ntawm cov cua sov network. Thaum qhov kub ntawm qhov nruab nrab conveying yog - 50 degree - 120 degree, rigid polyurethane ua npuas ncauj raug xaiv raws li txheej rwb thaiv tsev.
Qhov thib peb txheej: high-density polyethylene tiv thaiv txheej yog prefabricated rau hauv dub (daj) yas kav nrog ib tug tej phab ntsa thickness. Nws txoj haujlwm yog los tiv thaiv polyurethane rwb thaiv tsev txheej los ntawm kev puas tsuaj, thiab tiv thaiv corrosion thiab waterproofing.
Dab tsi yog qhov zoo ntawm pre insulated yeeb nkab rau underground cua txias?
1.Polyurethane rwb thaiv tsev kav dej muaj zog corrosion kuj, thiab ntau hom rwb thaiv tsev kav muaj qhov sib txawv corrosion kuj. Kev tsim kho tuaj yeem xaiv cov kav dej uas muaj qhov sib txawv corrosion raws li qhov nruab nrab xa los ntawm cov kav dej.
2.Polyurethane rwb thaiv tsev cov kav dej muaj qhov ua tau zoo ntawm kev rwb thaiv tsev, thiab piv rau cov kav dej ib txwm muaj, qhov kub poob qis yog txo los ntawm 25 feem pua. Kev siv lub sijhawm ntev tsis tsuas yog txuag lub zog ntau dua, tab sis kuj txo cov nqi hluav taws xob
Cim npe nrov: Tuam Tshoj pre insulated yeeb nkab rau underground cua txias manufacturers, lwm tus neeg, Hoobkas