Dab tsi yog qhov txawv ntawm ppr cov kav dej kub thiab dej txias? Muaj ntau qhov sib txawv ntawm ppr cov kav dej kub thiab dej txias, xws li qhov sib txawv, qhov sib txawv ntawm qhov kub thiab txias tsis kam, cov khoom siv sib txawv, qhov sib txawv siab, thiab lwm yam. Cov hauv qab no yog cov lus qhia ntxaws.
1. Cov tsos ntawm ppr cov kav dej kub thiab dej txias yog txawv
Feem ntau, PPR cov yeeb nkab dej kub yog cim nrog cov kab liab, thiab PPR cov yeeb nkab dej txias yog cim nrog kab xiav, thiab muaj cov ntawv cim thiab cov cim siab. Tsis tas li ntawd, cov kav dej ntawm tib lub ntsiab lus tseem tuaj yeem paub qhov txawv ntawm cov kav dej kub thiab dej txias. Phab ntsa thickness ntawm cov kav dej txias.
2, tus naj npawb ntawm qhov kub thiab txias kuj txawv
PPR cov kav dej kub tuaj yeem tiv taus qhov kub ntawm 95 degrees, thiab tuaj yeem ncav cuag 110 degrees hauv ib qho tam sim. Cov kav dej kub tuaj yeem siv tau ntev hauv cov xwm txheej ntawm qhov kub ntawm 70 degrees thiab kev ua haujlwm siab ntawm 1.0Mpa, thiab nws lub neej kev pabcuam tuaj yeem ncav cuag ntau tshaj 50 xyoo. PPR cov kav dej txias feem ntau tsis tuaj yeem tshaj 45 degrees, txwv tsis pub ntev - ua haujlwm hauv cov dej kub yuav sai sai thiab tawg.
3. Cov khoom siv sib txawv
Cov kav dej kub yuav tsum tau ua los ntawm cov khoom siv copolymer PP-R, thiab cov kav dej txias yuav tsum tau ua los ntawm homopolymer PP-B cov ntaub ntawv. PP-R ntawm qhov kub thiab txias stability thiab zoo dua mechanical zog, zoo kub tsis tshua muaj toughness. PP-B cov ntaub ntawv tau yooj yim deformed thaum siv ntawm qhov kub thiab txias, thiab lawv lub zog yuav txo qis heev.
4. Txawv siab tsis kam
PPR cov yeeb nkab dej kub raug ntaus nrog rauj thiab tawg, thaum PPR cov yeeb nkab dej txias yuav tsuas yog flattened vim yog quab yuam thiab yuav tsis tawg.