Yooj yim
Qhov yooj yim ntawm cov yeeb nkab polyethylene tso cai rau nws ua kom nkhaus hla, hauv qab, thiab ib puag ncig cov teeb meem nrog rau kev nce siab thiab kev hloov pauv.Qee qhov xwm txheej, cov yeeb nkab hloov tau yooj yim tuaj yeem tshem tawm kev siv cov fittings thiab txo cov nqi installation zoo heev.
CHUANGRONG PE yeeb nkab tuaj yeem khoov mus rau qhov tsawg kawg nkaus ntawm 20 mus rau 40 npaug ntawm txoj kab uas hla ntawm cov yeeb nkab, uas feem ntau yog nyob ntawm SDR ntawm qee cov yeeb nkab.
Rooj : Yam tsawg kawg nkaus tso cai bend radius ntawm HDPE yeeb nkab ntawm 23℃
| SDR ntawm lub cev | Mininumallowable khoov radfus, Rmin |
| 6 7.4 ib | 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 lub nominal sab nraud txoj kab uas hla, nyob rau hauv millimeters
Lub teeb nyhav
Lub neej expectancy
Qhov ntom ntawm cov khoom PE tsuas yog 1/7 ntawm cov hlau. Qhov hnyav ntawm PE yeeb nkab yog tsawg dua li ntawm cov pob zeb cam khwb cia hlau, los yog cov yeeb nkab steel.The PE yeeb nkab yog ib qho yooj yim los tuav thiab nruab, thiab txo tus txiv neej lub zog thiab cov khoom siv yuav ua rau kev txuag nyiaj.
Lub hauv paus tsim hydrostatic rau CHUANGRONG yeeb nkab yog ua raws li cov ntaub ntawv tshawb fawb hydrostatic uas tau soj ntsuam los ntawm cov txheej txheem kev lag luam.Qhov kev coj tus cwj pwm mus sij hawm ntev rau kev tiv thaiv sab hauv yog muab los ntawm hydrostatic zog nkhaus raws li EN ISO 15494 tus qauv (saib ntu X). Daim ntawv thov txwv rau cov kav dej thiab fittings, raws li qhia nyob rau hauv daim duab siab-kub, yuav muab tau los ntawm cov nkhaus, uas qhia tau hais tias cov yeeb nkab muaj lub neej expectancy ntawm kwv yees li 50 xyoo thaum thauj dej ntawm 20 ℃. Ib puag ncig sab hauv thiab sab nraud tuaj yeem hloov pauv lub neej xav tau lossis hloov cov qauv tsim qauv pom zoo rau daim ntawv thov.
Huab cua Resistance
Thermal Properties
Huab cua ntawm cov yas tshwm sim los ntawm cov txheej txheem ntawm degradation, los yog oxidation, vim muaj kev sib xyaw ua ke ntawm ultraviolet hluav taws xob, kub kub, thiab noo noo thaum cov kav dej khaws cia hauv qhov chaw raug. Dub polyethlence yeeb nkab, muaj 2 mus rau 2.5% finely faib cov pa roj carbon dub, tuaj yeem ruaj ntseg khaws cia sab nraum feem ntau huab cua rau ntau xyoo yam tsis muaj kev puas tsuaj los ntawm ultra-violet raug. Lwm cov xim xws li dawb, xiav, daj lossis lilac tsis muaj qhov ruaj khov zoo ib yam li cov xim dub thiab lub sij hawm ntawm qhov raug yuav tsum raug txwv rau ib xyoos rau qhov zoo tshaj plaws tuav cov khoom.Nrog rau cov xim tshuab sab nrauv oxidation txheej tsim ntawm tus nqi nrawm dua li cov pa roj carbon dub
Cov kav dej PE stabilized.Cov kav dej muaj xim no tsis pom zoo rau saum av.
Cov kav dej polyethylene tuaj yeem siv tau ntawm qhov kub ntawm -50 ° C txog + 60 ° C. Thaum kub siab dua, lub zog tensile thiab nruj ntawm cov khoom raug txo yog li ntawd, thov sab laj nrog lub siab-kub daim duab. Rau qhov kub hauv qab O ° Cit yuav tsum tau xyuas kom meej tias qhov nruab nrab tsis khov, kom tsis txhob muaj kev puas tsuaj rau cov kav dej.
Zoo li tag nrho cov thermoplastics, PE qhia tau hais tias muaj ntau dua thermal expansion ntawm cov hlau. Peb cov PE muaj cov coefficient ntawm linear thermal expansion ntawm 0.15 mus rau 0.20mm / m K, uas yog 1.5 npaug tshaj qhov piv txwv. PVC. Raws li qhov no yog coj mus rau hauv tus account thaum lub sij hawm kev npaj ntawm lub installation yuav tsum tsis muaj teeb meem nyob rau hauv no hais txog.
Lub thermal conductivity yog 0.38 W / m K.Vim tias qhov tshwm sim ntawm cov khoom rwb thaiv tsev, PE piping system yog qhov tseem ceeb tshaj nyiaj txiag hauv kev sib piv rau cov txheej txheem ua los ntawm cov khoom zoo li tooj liab.
Combustion Cwj Pwm
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Polyethylene belongs rau cov plastics flammable.Qhov ntsuas cov pa oxygen yog 17%.
PE drips thiab txuas ntxiv mus hlawv yam tsis muaj khawb tom qab tshem cov nplaim taws. Qhov tseeb, cov tshuaj lom neeg raug tso tawm los ntawm txhua qhov txheej txheem hlawv. Cov pa roj carbon monoxide feem ntau yog cov khoom combustion uas txaus ntshai tshaj plaws rau tib neeg. Thaum PE hlawv, feem ntau carbon dioxide, carbon monoxide thiab dej tsim.
Qhov kub ntawm tus kheej yog 350 ℃ .
Cov tshuaj tua hluav taws tsim nyog yog dej, ua npuas ncauj, carbon dioxide lossis hmoov.
Tshuaj lom neeg tsis kam
PE kav tej zaum yuav raug puas tsuaj los ntawm cov khoom lom xws li ntsaum los yog nas. Kev tiv thaiv kev tawm tsam yog txiav txim siab los ntawm qhov nyuaj ntawm PE siv, geometry ntawm PE nto, thiab cov xwm txheej ntawm kev teeb tsa. Hauv cov kav dej me me, cov phab ntsa nyias nyias yuav raug puas tsuaj los ntawm cov kab mob hauv qhov xwm txheej hnyav. Txawm li cas los xij, kev puas tsuaj feem ntau tau hais rau termite nres hauv PE tom qab tau pom tias yog vim lwm qhov chaw ntawm kev puas tsuaj.
PE yeeb nkab tshuab feem ntau tsis cuam tshuam los ntawm cov kab mob lom hauv ob qho tib si hauv av, thiab kev siv dej hiav txwv, thiab qhov xwm txheej paraffinic ntawm PE yeeb nkab sufaces retards kev tsim ntawm marine grothes hauv kev pabcuam.
Cov khoom hluav taws xob
Vim tias qhov nqus dej tsawg ntawm PE, nws cov khoom hluav taws xob tsis tshua muaj kev cuam tshuam los ntawm kev sib cuag dej txuas ntxiv.Vim PE yog cov tsis muaj polar hydrocarbon polymer, nws yog ib qho zoo heev insulator.Cov khoom no, txawm li cas los xij, tuaj yeem ua rau muaj kev puas tsuaj loj heev. , cov teebmeem ntawm oxidizing media lossis huab cua. Qhov tshwj xeeb ntim kuj yog> 1017 Ωcm; Lub zog dielectric yog 220 kV / mm.
Vim tias muaj peev xwm txhim kho cov nqi hluav taws xob, kev ceev faj yog pom zoo thaum siv PE hauv cov ntawv thov uas muaj kev phom sij ntawm hluav taws kub lossis tawg yog geven.
CHUANGRONGyog ib lub tuam txhab sib koom ua lag luam thiab kev lag luam sib koom ua ke, tsim nyob rau xyoo 2005 uas tau tsom mus rau kev tsim cov yeeb nkab HDPE, Fittings & Valves, PPR Pipes, Fittings & Valves, PP compression fittings & Valves, thiab muag cov yas yeeb nkab vuam tshuab, yeeb nkab cuab yeej, yeeb nkab. Kho Clamp thiab lwm yam.
Yog tias koj xav tau cov ntsiab lus ntxiv, thov hu rau peb +86-28-84319855, chuangrong@cdchuangrong.com, www.cdchuangrong.com
Post lub sij hawm: Nov-14-2024
