1.PE yeeb nkab corrosion kuj yam ntxwv?
Polyethylene yog ib qho khoom siv tsis zoo uas tuaj yeem tiv taus corrosion ntawm ntau yam tshuaj lom neeg.Tsis muaj electrochemical corrosion, tsis muaj anti-corrosion txheej.
2. Cov yam ntxwv tsis muaj dej tsis haum ntawm PE raj?
Polyethylene yeeb nkabfeem ntau yog siv vuam kev sib txuas (kub fusion kev twb kev txuas lossis hluav taws xob fusion txuas), uas tseem ceeb kom paub meej tias tus kheej ntawm cov khoom siv sib txuas, cov qauv thiab cov yeeb nkab lub cev, thiab paub txog kev sib koom ua ke ntawm kev sib koom ua ke thiab cov yeeb nkab.Qhov kev sim ua pov thawj tias lub zog tensile thiab blasting lub zog ntawm qhov sib txuas yog siab dua li ntawm cov yeeb nkab lub cev, thiab tsis muaj teeb meem xau piv nrog cov roj hmab pob qij txha lossis lwm cov pob qij txha.
3.PE yeeb nkab siab toughness yam ntxwv?
Polyethylene yeeb nkab yog ib hom siab toughness yeeb nkab, nws elongation ntawm tawg yog feem ntau ntau tshaj 500%, lub peev xwm los hloov mus rau qhov tsis sib haum ntawm cov yeeb nkab puag yog muaj zog heev.Nws kuj yog ib hom yeeb nkab uas zoo heev los tiv thaiv seismic kev ua tau zoo.Xyoo 1995 Kobe av qeeg hauv Nyij Pooj, polyethylene roj yeeb nkab thiab cov kav dej yog cov yeeb nkab uas tsis muaj kev cia siab.Yog li ntawd, Nyiv tom qab av qeeg tau txhawb nqa kev siv PE yeeb nkab hauv cov pa roj.
4.PE raj muaj cov yam ntxwv hloov tau zoo?
Kev hloov pauv ntawm polyethylene tso cai rau cov kav dej polyethylene rov ua dua thiab nkag mus rau qhov ntev ntev yam tsis tas yuav tsum muaj ntau yam kev sib koom ua ke.Rau kev tsim kho trenchless, cov kev taw qhia ntawm cov yeeb nkab polyethylene tuaj yeem hloov tau yooj yim raws li qhov yuav tsum tau ua ntawm txoj kev tsim kho, thiab qhov loj thiab qhov loj me tuaj yeem rov qab los tom qab kev tsim kho.
5. Yuav ua li cas to taub cov yam ntxwv ntawm PE raj nrog zoo tiv thaiv khawb?
Kev khawb ua rau muaj kev ntxhov siab hauv cov khoom siv, ua rau tsis ua haujlwm ntawm cov yeeb nkab.Thaum siv tshuab trenchless, khawb yog qhov nyuaj dua kom tsis txhob, txawm tias cov yeeb nkab tshiab tau tso los yog cov yeeb nkab qub raug hloov.Nyob rau hauv xyoo tas los no, nws tau raug pov thawj tias PE80 qib polyethylene yeeb nkab muaj kev tiv thaiv zoo dua rau kev loj hlob qeeb thiab khawb tsis kam, thiab PE100 polyethylene yeeb nkab muaj kev tiv thaiv khawb zoo dua.Yog li ntawd, polyethylene yeeb nkab yog dav siv nyob rau hauv trenchless technology tsim.
6. PE yeeb nkab muaj cov yam ntxwv ntawm kev sib kis ceev ceev.
Kev tawg sai ntawm cov raj xa dej yog ib hom kev sib tsoo.Cov kab nrib pleb nce nrawm ntawm qee qhov ceev, ua rau muaj kev puas tsuaj ntawm kaum tawm meters lossis txawm ntau txhiab meters ntawm cov kav dej tam sim ntawd, thiab cov txiaj ntsig tshwm sim yog kev puas tsuaj.Thaum ntxov li xyoo 1950, muaj ntau qhov kev sib tsoo ceev ceev hauv Tebchaws Meskas cov kav dej.Kev tawg nrawm ntawm cov yeeb nkab polyethylene tsis tau pom nyob rau hauv kev xyaum.Nyob rau hauv xyoo tas los no, ntau txoj kev tshawb fawb tau ua tiav ntawm kev tawg sai ntawm cov yeeb nkab hauv ntiaj teb.Cov txiaj ntsig tau pom tias qhov tsis kam ntawm cov yeeb nkab polyethylene kom tawg tawm yog qhov zoo tshaj plaws.
Post lub sij hawm: Feb-03-2023
