1. PE 100 lossis PE 80
PE100 yog hais txog qib, PE100 qib, PE100 (100 ~ 1.0Mpa) yog qhov tsawg kawg nkaus uas yuav tsum tau muaj zog (MRS) ntawm polyethylene raw cov ntaub ntawv tom qab sib npaug ntawm cov qib, raws li GB/T18252 los txiav txim cov khoom thiab 20 degree , 50 xyoo, kev kwv yees Raws li lub zog hydrostatic σLPL sib thooj rau qhov tshwm sim ntawm 97.5 feem pua, MRS hloov dua siab tshiab, thiab MRS tau muab faib los ntawm 10 kom tau txais cov naj npawb ntawm cov khoom siv. Feem ntau, muaj PE100, PE80 thiab lwm yam.
2. DN thiab DE
Dab tsi yog qhov txawv ntawm DN thiab DE ntawm PE yeeb nkab cim? Ntawm qee qhov ntawm peb cov duab kos duab, peb tuaj yeem pom tias cov kav dej PE qee zaum cim nrog DE thiab qee zaum cim nrog DN. Qhov ntawd txhais li cas?
Thaum ntxov tshaj plaws, DN hais txog lub nominal txoj kab uas hla. Piv txwv li, nyob rau hauv daim ntawv thov ntawm steel kav, nws yog hais txog lub puab txoj kab uas hla. Thaum DN tau siv nyob rau hauv qhov ntxov tshaj plaws PE yeeb nkab tsim, peb kuj defaulted rau lub puab kab. Piv txwv li, PE yeeb nkab ntawm DN100 yeej yog hais txog lub puab txoj kab uas hla. PE yeeb nkab nrog txoj kab uas hla ntawm 110.
Txawm li cas los xij, tom qab qhov kev tso tawm zaum kawg ntawm GB/T13663-2000 los ntawm General Administration of Quality Supervision, Inspection and Quarantine, DE thiab DN tau koom ua ke kom xa mus rau sab nraud ntawm PE yeeb nkab, uas txhais tau hais tias ob qho tib si DN200 thiab DE200 xa mus rau sab nraud ntawm cov yeeb nkab PE.
3. Mpa
Mpa yog hais txog qib siab, thiab PE kav feem ntau muab faib ua tsib theem, xws li {{0}}.6Mpa, 0.8Mpa, 1.0Mpa, 1.25Mpa, thiab 1.6 Mpa. Piv txwv li, 0.6Mpa txhais tau hais tias PE yeeb nkab tuaj yeem tiv taus qhov siab ntawm 6 kg; 1.6Mpa txhais tau hais tias PE yeeb nkab tuaj yeem tiv taus qhov siab ntawm 16 kg.
4. SDR
SDR hais txog txoj kab uas hla mus rau phab ntsa piv ntawm cov yeeb nkab, uas yog, sab nraud faib los ntawm phab ntsa thickness sib npaug 11, lub sij hawm lub npe yog tus qauv loj piv. Piv txwv li, SDR11, uas txhais tau hais tias qhov sib piv ntawm sab nraud mus rau phab ntsa thickness SDR ntawm PE kav.