yeeb nkab kws

15 Xyoo Kev Tsim Khoom

Taw qhia rau PE dej xa yeeb nkab

Polyethylene cob raws li cov khoom siv tseem ceeb ntawm cov khoom, tom qab extrusion molding dej muab polyethylene yeeb nkab hu ua PE dej yeeb nkab.

PE cov yeeb nkab tsim khoom siv?

Lub teb chaws Yelemees Como cov kab ntau lawm. Cov cuab yeej tsim khoom nrog lub ntiaj teb kev tshaj lij thev naus laus zis, nrog kev kub ceev extrusion molding, nruab nrab melting, tsis siv neeg sizing txiav, PLC tswj ntawm cov txheej txheem tsim khoom ntawm kev ua tau zoo.

PE yeeb nkab rau kev ua raws li tus txheej txheem?

Lub teb chaws tus qauv GB/T 13663-2000.

Cov xim dab tsi ntawm PE dej yeeb nkab

Cov xim saum npoo yog dub, thiab ob peb xav tau dawb. Lub raj dub muaj kab txaij xiav rau ntawm nws sab.

Cov khoom siv tshwj xeeb ntawm PE dej yeeb nkab yog dab tsi?

PE 80

Nominal siab: 0.4mpa, 0.8mpa, 1.0mpa, 1.25Mpa;

Txoj kab uas hla: φ25 ~ φ1600mm.

PEB 100

Nominal siab: 0.6mpa, 0.8mpa, 1.0mpa, 1.25Mpa, 1.6mpa;

Txoj kab uas hla: φ32 ~ φ1800mm.

PE yeeb nkab khoom yam ntxwv?

(1) Lub zog siab, zoo heev ib puag ncig kev nyuab siab tawg ua haujlwm, ua haujlwm tsis zoo.

(2) Zoo tawv thiab yoog raws, muaj zog hloov pauv mus rau lub hauv paus tsis sib xws thiab txav chaw, thiab tuaj yeem tiv taus av qeeg, cua daj cua dub thiab lwm qhov chaw hnyav.

(3) Nws muaj huab cua tiv taus zoo (suav nrog uv tsis kam) thiab lub sijhawm ua kom sov sov ntev.

(4) Corrosion tsis kam, tsis tas yuav ua los tiv thaiv kev txhim kho corrosion, ua haujlwm ntev.

(5) Sab hauv phab ntsa yog du, cov dej ntws tsis kam yog qhov me me, lub peev xwm nthuav dav yog loj, thiab kev tsim kho raug nqi.

(6) Zoo hnav tsis kam thiab hnav tsis kam.

(7) Qhov kub tsis kam tiv taus yog qhov zoo, tuaj yeem ua tau ntawm qhov kub ntawm -20–40 use siv tau zoo, kev tsim kho lub caij ntuj no tsis cuam tshuam.

(8) Hluav taws xob yaj (lossis kub yaj) kev sib txuas tau yooj yim thiab ntseeg tau, tsim kho thiab kho tau yooj yim (thaum lub sijhawm dej tsis tuaj yeem txiav tawm).

(9) Nws yog qhov tsim nyog rau kev tsim kho cov txheej txheem ib txwm muaj thiab cov thev naus laus zis tshiab tsis zoo xws li cov yeeb nkab sib tsoo, kev taw qhia kev khawb, hauv ob sab phlu, yeeb nkab tawg thiab dej hauv qab.

(10) Cov khoom siv Polyethylene tsuas yog muaj cov pa roj carbon, hydrogen ob lub ntsiab lus, tsis muaj teeb meem rau tib neeg lub cev.

(11) Kev siv thev naus laus zis thev naus laus zis thev naus laus zis zoo, tiv thaiv kev loj hlob ntawm algae, kab mob thiab kab mob, yog ntsuab, noj qab haus huv, ib puag ncig tiv thaiv ntawm cov kav dej haus

Khoom nta:

1. Txhim khu kev sib txuas: Cov kav dej xa dej polyethylene txuas nrog hluav taws xob kub yaj; Flange txuas nrog lwm cov kav dej, yooj yim thiab nrawm.

Qhov thib ob, qhov kub tsis kam tiv taus yog qhov zoo: qhov kub tsis txias embrittlement kub ntawm polyethylene yog qhov tsawg heev, tuaj yeem siv kev nyab xeeb hauv qhov kub ntawm -35 ℃ -60 ℃. Hauv kev tsim kho lub caij ntuj no, cov yeeb nkab yuav tsis tawg vim qhov cuam tshuam zoo ntawm cov khoom.

Peb, tiv thaiv tshuaj lom neeg zoo heev: HDPE kav dej tuaj yeem tiv taus qhov xeb ntawm ntau yam tshuaj lom neeg, muaj cov tshuaj nyob hauv av yuav tsis tsim kev puas tsuaj ntawm cov raj xa dej.

Plaub, tiv taus kev laus, ua haujlwm ntev: polyethylene yeeb nkab uas muaj cov pa roj carbon dub tuaj yeem khaws cia sab nraum zoov lossis siv tau 50 xyoo, yuav tsis puas los ntawm hluav taws xob ultraviolet.

Tsib, winding zoo: Qhov hloov pauv ntawm HDPE kav dej ua rau nws yooj yim khoov, kev tsim vaj tsev tuaj yeem hla dhau qhov teeb meem los ntawm kev hloov pauv cov raj xa dej, ntau zaus, kev hloov pauv ntawm cov raj xa dej tuaj yeem txo tus nqi ntawm cov yeeb nkab fittings thiab txo nqi kev teeb tsa.

Tsis tshua muaj dej tsis kam: LUB HDPE yeeb nkab muaj qhov sab hauv du thiab Manning coefficient ntawm 0.009. Cov nplaim du thiab cov yam ntxwv tsis-nplaum ntawm HDPE cov kav dej tso cai rau kev xa khoom muaj peev xwm ntau dua li cov pa tubing, thaum txo kev poob siab thiab siv dej.

Xya, yooj yim tuav: HDPE yeeb nkab yog sib zog dua li cov yeeb nkab yeeb nkab, cov yeeb nkab galvanized thiab cov yeeb nkab hlau, yooj yim los tuav thiab teeb tsa, kev teeb tsa tus nqi ntawm qhov haujlwm tau zoo heev.

Yim, ntau txoj hauv kev tsim kho: HDPE cov kav dej xa dej, ntxiv rau cov txheej txheem kev khawb av rau kev tsim kho, tab sis kuj tseem tuaj yeem siv ntau yam tshiab thev naus laus zis thev naus laus zis xws li cov yeeb nkab jacking, kev taw qhia drilling, hauv ob sab phlu, kev tsim kho cov yeeb nkab, yog li HDPE cov raj xa dej thov dav dua

 


Sijhawm Tshaj Tawm: Oct-08-2021