Lub cev zoo heev.Kev ua tau zoo ntawm qhov nruab nrab ntom polyethylene yog nruab nrab ntawm qhov siab thiab qis polyethylene.Nws tsis tsuas yog tuav lub rigidity thiab lub zog ntawm high density polyethylene, tab sis kuj muaj zoo saj zawg zog thiab creep kuj, thiab high ntom polyethylene yog kub.Cov yam ntxwv ntawm kev ua tau zoo fusion kev sib txuas yog qhov tsim nyog rau kev teeb tsa cov kav dej yas.
Corrosion tsis kam thiab ua haujlwm ntev.Nyob rau hauv cov ntug dej hiav txwv ntawm peb lub teb chaws, cov dej hauv av yog siab thiab cov av humidity yog siab.Kev siv cov kav dej seamless steel yuav tsum muaj kev tiv thaiv corrosion thiab sab nraud tempered rau kev teeb tsa, thiab kev pabcuam lub neej tsuas yog 30 xyoo, thaum PE kav tuaj yeem tiv taus ntau yam tshuaj lom neeg.corrosion, tsis muaj kev tiv thaiv corrosion.Tsis tas li ntawd, nws tsis txhawb nqa algal, kab mob los yog fungal kev loj hlob thiab muaj lub neej ntev ntawm 50 xyoo.
Zoo toughness thiab yooj.PE yeeb nkab yog ib hom high-tughness yeeb nkab, nws elongation ntawm so ntau tshaj 500%, nws muaj zog adaptability rau qhov tsis sib haum xeeb thiab dislocation ntawm cov yeeb nkab foundation, thiab muaj zoo seismic kuj.Nws tau lees paub tias PE yeeb nkab yog cov yeeb nkab uas muaj qhov zoo tshaj plaws kev poob siab.Muaj lus hais tias nyob rau hauv Kobe av qeeg hauv Nyij Pooj xyoo 1995, cov kav dej PE thiab cov kav dej tsuas yog cov kav dej uas tsis muaj kev puas tsuaj.Tsis tas li ntawd, qhov yooj yim ntawm cov yeeb nkab PE yog tias cov yeeb nkab PE tuaj yeem coiled, txo cov kev sib txuas ntau ntawm cov yeeb nkab fittings.Cov kev taw qhia ntawm cov yeeb nkab PE tuaj yeem hloov tau yooj yim raws li qhov yuav tsum tau ua ntawm txoj kev tsim kho.Thaum lub sij hawm tsim kho, obstacles yuav bypassed nyob rau hauv lub tso cai khoov vojvoog ntawm cov yeeb nkab kom txo tau qhov nyuaj ntawm kev tsim kho.
Lub peev xwm ncig yog loj thiab kev lag luam yog tus nqi zoo.Sab hauv phab ntsa ntawm PE yeeb nkab yog du thiab tsis scaled.Qhov sib npaug ntawm qhov sib npaug ntawm qhov chaw sab hauv ntawm PE yeeb nkab yog 1/20 ntawm cov yeeb nkab steel.Lub peev xwm txaus ntawm cov yeeb nkab PE nrog tib lub yeeb nkab txoj kab uas hla, tib qhov ntev thiab tib lub siab yog li ntawm 30% loj dua li ntawm cov yeeb nkab steel, yog li kev lag luam zoo yog pom tseeb.Piv nrog cov kav hlau hlau, PE kav dej tuaj yeem txo qhov kev nqis peev ntawm ib feem peb, thiab cov kav dej me me uas tuaj yeem coiled tuaj yeem txo qhov project nqi ntxiv., Kev sib txuas yog yooj yim, kev tsim kho yog yooj yim, thiab txoj kev muaj ntau yam.PE yeeb nkab lub cev yog lub teeb, yooj yim los tuav, yooj yim rau vuam, thiab muaj ob peb vuam pob qij txha.Thaum cov kav dej ntev ntev, cov yeeb nkab coil tuaj yeem siv los nteg cov PE yeeb nkab trench.Cov kev xav tau yog qis dua li cov yeeb nkab steel trench, thiab thaum cov kev tsim kho raug txwv, electrofusion vuam siv tau.Tsis tas li ntawd, cov txheej txheem ntawm submerging cov yeeb nkab tuaj yeem siv los tso rau hauv qab ntawm cov dej, uas txo cov kev tsim kho nyuaj thiab cov nqi tsim khoom.
Zoo sealing.PE yeeb nkab nws tus kheej yog welded thiab txuas, uas tseem ceeb kom paub meej tias tus kheej ntawm cov khoom siv interface, cov qauv thiab cov yeeb nkab lub cev nws tus kheej, thiab paub txog kev sib koom ua ke ntawm kev sib koom ua ke thiab cov yeeb nkab.Lub zog tensile thiab tawg lub zog ntawm lub interface yog siab dua li cov yeeb nkab lub cev, uas tuaj yeem tiv taus qhov kev ntxhov siab thiab kev ntxhov siab axial tsim los ntawm lub siab sab hauv.Yog li ntawd, piv nrog cov roj hmab nplhaib hom pob qij txha los yog lwm yam kev sib koom ua ke, tsis muaj qhov cuam tshuam los ntawm kev sib koom ua ke, thiab kev sib khi ua haujlwm zoo heev.
Nws yog ib qho yooj yim los tswj thiab tuaj yeem kho thiab nruab yam tsis muaj dej thiab roj.
Zoo kev nyuaj siab cracking kuj:PE cevmuaj qhov tsis tshua muaj siab rhiab heev, siab shear zog thiab segmental anti-scratch peev xwm, thiab zoo heev ib puag ncig kev nyuaj siab.Qhov kub tsis tshua muaj kev cuam tshuam zoo: qhov kub tsis tshua muaj kub ntawm PE yeeb nkab yog qhov qis heev, thiab nws tuaj yeem siv tau zoo hauv qhov kub thiab txias ntawm -60 degrees Celsius.Nyob rau sab qaum teb ntawm kuv lub teb chaws, thaum lub polyethylene faus dej muab tso rau hauv lub tshav pob thaum lub caij ntuj no, nws tau txiav txim siab tias nws tsis haum rau kev tsim kho hauv qab xoom degrees, vim hais tias cov yeeb nkab polyethylene yog yooj yim nkig.Zoo abrasion tsis kam.Kev sib piv ntawm kev hnav tsis kam ntawm cov yeeb nkab polyethylene thiab cov yeeb nkab steel qhia tau hais tias nws hnav tsis kam yog 4 npaug ntawm cov yeeb nkab steel.
Post lub sij hawm: Aug-14-2022
