Yooj yooj
Qhov yooj yooj yim ntawm polyethylene yeeb tso cai rau nws nkhaus dua, hauv qab, thiab ib puag ncig cov nyom nrog rau kev nce qib thiab cov kev hloov pauv.Hauv qee kis, cov yeeb nkab qhov kev hloov pauv tau zoo kawg li tshem tawm cov kev siv ntawm fittings thiab ntau heev txo cov nqi teeb tsa.
Chuzgrong PE Cov yeeb nkab tuaj yeem khoov tau rau qhov hluav taws xob tsawg kawg ntawm 20 txog 40 zaug lub taub ntawm cov yeeb nkab, uas tsuas yog nyob ntawm SDR ntawm qee cov yeeb nkab.
Lub rooj : Tsawg kawg pub beNd Radius ntawm Cov Yeeb Nkab HDPE ntawm 23℃
| SDR ntawm cov yeeb nkab | MininumallowabLe khoov radfus, rmin |
| 6 7.4 | Rmin> 20 × dn rmin> 20 × dn |
| 9 | RMIN> 20 × DN * |
| 11 | RMIN> 25 × DN * |
| 13.6 RMIN> 25 × DN * | |
| 17 | RMIN> 27 × DN * |
| 21 | Rmin> 28 × DN * |
| 26 | Rmin> 35 × dn * |
| 33 | Rmin> 40 × DN * |
* DN: yog cov nominal sab nraud ntawm lub taub, hauv millimetres
Lub teeb hnyav
Lub neej cia siab
Qhov ceev ntawm PE cov khoom tsuas yog 1/7 ntawm cov hlau ntawd. Qhov hnyav ntawm PE yeeb nkab muaj tsawg dua li cov qhob nrum hlau, lossis txo tus txiv neej lub zog thiab cov cuab yeej txo yuav ua rau cov nyiaj kom txaus siab.
Tus tsim kho hydrostatic ua rau chuanegrong yeeb nkab yog raws li cov qauv kev ua lag luam hydrostatic ua haujlwm tau raug tshuaj xyuas los ntawm kev siv hluav taws xob hauv hydaj Daim ntawv thov txwv rau cov kav dej thiab cov fittings, raws li qhia hauv lub siab-shourge, uas qhia tau los ntawm cov kab nkhaus ntawm 50 xyoo thaum thauj dej ntawm 20 ℃. Sab hauv thiab sab nraud ib puag ncig tej zaum yuav hloov lub neej kev cia siab lossis hloov cov qauv pom zoo rau kev thov.
Huab Cua Kuj
Thermal Khoom
Weatherics ntawm cov plastics tshwm sim los ntawm cov txheej txheem ntawm cov teeb meem saum npoo av, muaj qhov kub thiab txias, thiab moisure thaum pipes tau khaws cia hauv cov chaw nthuav tawm. Dub Polyethlence Yeeb, Muaj 2.5% Finely faib cov pa roj carbon dub, tuaj yeem ua kom muaj kev puas tsuaj rau sab nraud ntxiv los ntawm ultras-blank yog qhov kev ua tau zoo tshaj plaws los txhim kho cov huab cua cov tsiaj ntawm cov khoom siv yas. Lwm cov xim xws li dawb, xiav, daj lossis Lilac tsis muaj qhov ruaj khov raws li lub qhov ruaj khov rau ib xyoos rau cov xim dub oxidation txheej loj hlob ntawm sai sai tus nqi dua li cov hauv carbon dub
Stabilized PE Cov pipes.Xes cov kav dej tsis pom zoo rau saum av daim ntawv thov.
Polyethylene kav tuaj yeem siv tau ntawm qhov kub thiab txias los ntawm-50 ° C rau + 60 ° C. Thaum muaj qhov kub siab dua, lub zog tensile thiab txhav ntawm cov khoom siv yog li ntawd, thov sab laj kub-ua yeeb yam. Txog qhov kub hauv qab no o ° Cit yuav tsum yog kom ua kom tau tias qhov nruab nrab tsis khov, kom tsis txhob muaj kev puas tsuaj rau cov raj xa dej.
Zoo li txhua yam thermoplastics zoo li, PE qhia tau ntau dua qhov kev nthuav dav cov hlau. Peb tus PE muaj kev sib cav ntawm linear thermal thermal thermal thermal expansion ntawm 0.15 rau 0.20mm / m, uas yog 1.5 zaug ntau dua li ntawm eG. PVC. Raws li qhov no tau coj mus rau hauv tus account thaum lub sijhawm npaj ntawm lub installation yuav tsum tsis muaj teeb meem dab tsi ntawm qhov no.
Lub thermal conductivity yog 0.38 w / m k.because ntawm lub resulation rwb thaiv tsev zog, PE piping system yog tshwj xeeb ntau dua cov khoom siv los ntawm tooj liab.
Combusction tus cwj pwm
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Polyethylene belongs rau cov flammable plastics.thoj cov pa oxygen rau 17%.
PE Drips thiab kev sib dhos kom hlawv yam tsis muaj kua muag tom qab tshem cov nplaim taws. Yeej, tshuaj lom neeg susances raug tso tawm los ntawm txhua qhov kev hlawv cov txheej txheem. Cov pa roj carbon monoxide feem ntau yog feem ntau cov khoom sib txuas ua rau tib neeg. Thaum PEG hlawv, feem ntau cov pa roj carbon dioxide, carbon monoxide thiab dej ared.
Tus kheej-ignition kub yog 350 ℃.
Cov tshuaj tua hluav taws uas sib ntaus sib tua yog dej, ua npuas ncauj, carbon dioxide lossis hmoov.
Hmoob Kev Kuj
PE kav dej yuav raug rau kev puas tsuaj los ntawm cov roj ntsha xws li cov ntsaum lossis nas. Qhov tsis kam mus tawm tsam yog txiav txim siab los ntawm kev tawv tawv ntawm PE siv, cov geometry ntawm PE Surfaces, thiab cov xwm txheej ntawm kev teeb tsa. Hauv cov kab uas hla me me, cov ntawv sau nyias phab ntsa yuav raug kev puas tsuaj los ntawm cov lus hauv cov neeg hnyav. Txawm li cas los ua kev puas tsuaj feem ntau ascribed rau tag kis tawm hauv PE tau dhau los tau pom tias yog vim lwm cov peev txheej ntawm kev puas tsuaj.
Pe yeeb cov yeeb nkab feem ntau tsis muaj kev cuam tshuam los ntawm cov kab mob muaj sia nyob hauv ob qho av, thiab cov tshuaj lom neeg ua yeeb yam ntawm PE yeeb nkab Sufaces Retards cov tub rog grothes hauv kev pabcuam.
Cov Khoom Siv Hluav Taws Xob
Vim tias cov dej nqus dej qis ntawm PE, nws cov hluav taws xob tsis muaj cuam tshuam los ntawm insulator hydocarbon.Qhov khoom siv tsis tau-, tuaj yeem ua rau muaj kuab paug , Teeb meem ntawm oxidizing media lossis huab cua. Cov ntim tshwj xeeb tiv thaiv yog> 1017 ωcm; Lub Dielectric lub zog yog 220 kV / hli.
Vim tias muaj peev xwm tsim tau cov khoom siv hluav taws xob, pom zoo thaum siv PE hauv cov ntawv thov lossis tawg yog Geven.
Chuzegrongyog kev sib koom ua lag luam thiab cov tuam txhab kev lag luam ua ke, fittings & li qub, prves, thiab muag khoom ntawm cov khoom yas wring, cov khoom siv Kho kho clamp thiab li ntawd.
Yog tias koj xav tau cov ntsiab lus ntxiv, thov hu rau peb +86-28-84319855, chuangrong@cdchuangrong.com, www.cdchuangrong.com
Lub Sijhawm Post: Nov-14-2024
