HDPE raj: yam ntxwv thiab cov kev siv

Yas accessories rau cov kav dej nyob rau hauv peb lub teb chaws hais txog rau hauv nruab nrab ntawm lub 90s ntawm lub xeem caug xyoo, tom qab uas lawv yuav luag tam sim ntawd hloov lub hlau thiab steel counterparts. Qhov no yog tshwj xeeb tshaj yog muaj tseeb ntawm cov kav dej. Nws yuav zoo li uas nyob rau hauv lub sij hawm no ntawm HDPE yeeb nkab (tus yam ntxwv uas peb piav qhia txog nram qab no), tau muaj pov thawj rau lawv tus kheej yuav tsum tau zoo, tab sis ib txhia ntawm peb tseem yog cov yas nrog ib tug tej skepticism. Wb tham ntau txog cov khoom no.

Los ntawm tej yam no hlab yog manufactured?

Lub ntau lawm technology yog xws li hais tias tus ethylene molecules crosslinking txheej txheem tshwm sim nyob rau ib tug siab ntawm 5 kg / cm ^2. Tsim cov ntaub ntawv uas nrog ib tug ntom ntawm 0,941 g / cm, muaj ib tug zoo nruj. Vim tus siv lead ua qauv, nws yog txawv opacity. Muab hais tias ethylene yog kev cob cog rua rau hauv ib tug compact molecule nrog me ntsis branching, lub dag lub zog ntawm lub resulting cov ntaub ntawv uas yog tsis tshua muaj siab. HDPE melts ntawm ib tug kub ntawm txog 130 degrees, yog li ntawd tus qauv siv ntawm cov khoom tso lawv tej kev ntshai tsis ua hauj lwm vim hais tias ntawm qhov kub thiab txias tshaj koj yuav tsum tsis txhob. Yog li, HDPE yeeb nkab, tus yam ntxwv uas yog zoo ua luaj, zoo meej rau cov private tsev mov dej systems.

Nyob rau hauv tas li ntawd, nws muaj zoo heev kuj mus acids thiab nqaijrog, uas ua rau tej kav dej pom tus neeg sib tw rau mounting kav dej tsis zoo xwb, tab sis kuj kav dej phwj. Nws yuav tsum tau muab sau tseg hais tias nws yuav kuj yuav tawg, tab sis los ntawm kev siv high-molecular tias uas yuav tsis tshwm sim nyob rau hauv tej yam tej yam kev mob. Nyob rau hauv hauv paus ntsiab lus, HDPE yeeb nkab, yam ntxwv uas yog heev siab heev, yog muaj ntaub ntawv ntawm kub txog li -50 degrees Celsius.

Nyob rau hauv tas li ntawd, HDPE yog ua ntim zaj duab xis, kav thiab rwb thaiv tsev rau high-voltage cables, nets rau ntseej, rooj tog zaum thiab cov rooj tog zaum nws tus kheej, raws li zoo raws li ib tug lossis loj daim ntawv teev cov lwm cov khoom.

Lub ntsiab yam ntxwv ntawm cov khoom

Txawm li cas los, peb xav tsis yog li ntawd ntau npaum li cas cov kev thaj chaw ntawm nets thiab accessories, raws li ncaj qha rau cov kav dej lawv tus kheej. Cia saib lawv nyob rau hauv ntau yam.

Firstly, lawv muab kev pab lub neej - yam tsawg kawg ib nrab ib xyoo pua. Chemists nyob rau hauv lub 50 lub ntawm lub xeem tiam nteg xws stability nyob rau hauv lawv tsim. Raws li peb tau hais tias, lawv yuav tsis raug txhoj puab heev tshuaj tej kev kawm. Ntxiv mus, cov kav dej ua los ntawm polyethylene yog tsis stray currents, thaum lub hlau kav yuav raug rhuav tshem los ntawm lawv rau xwb ob peb lub caij nyoog. Txawm tus nqi ntawm lawv tso hauv qab no yuav luag ib kev txiav txim ntawm magnitude: nyob rau hauv lub kawg, yog tias tsim nyog, kom tiv nrog qhov no zoo ntawm kev ua hauj lwm, txawm ib tug neeg. Thiab tag nrho cov no - HDPE yeeb nkab. Kev xyaum ntawm lawv cov kev siv tau pom hais tias txawm lub scum lawv tsis tsim, yog li ntawd yuav tsum tau mus tshum thiab kev puas tsuaj rau cov khoom yuav siv tsis nco qab.

Nco ntsoov tias txawm nyob rau hauv heev uas tsis muaj ambient kub, uas ua rau rupture ntawm standard hlau khoom, polyethylene tseem lig unharmed. Qhov no yog vim lub fact tias lub thermal conductivity ntawm no cov ntaub ntawv uas yog tsis tshua muaj tsis tshua muaj. Yog vim li cas HDPE yeeb nkab (tus yam ntxwv uas peb saib) tej zaum yuav Attendance zoo siv tsis tau tsuas yog nyob rau hauv ib tug kub tsis txias kev nyab xeeb, tab sis kuj nyob rau hauv lub Far North. Los ntawm txoj kev, txawm nyob rau hauv ib feem tsawg tsawg kub, thaum cov dej yog tseem khov hauv cov khoom, tsis muaj dab tsi txaus ntshai yuav ua li cas: ib tug polyethylene los nthuav los ntawm 5-7%, yog li ntawd cov dej khov yuav tsis tau rhuav nws li.

Cov zog muab zoo heev kuj mus waterhammer, yog li ntawd txawm cov antics ntawm pej xeem cov kev pab cuam tsis hem koj. Yog hais tias ib yam dab tsi tshwm sim, kho yuav tsis siv ib tug ntau lub sij hawm. Nyob rau hauv tas li ntawd, HDPE yeeb nkab, tus yam ntxwv uas tseem cia nws welding, nrog lub sij hawm tsis poob lub zog txawm welds.