PPR lub raj
A. Ua ntej tshaj plaws, saib cov tsos. Cov yeeb yaj kiab muaj txiaj ntsig zoo nkauj tsis muaj kev sib txig, ua tiav logos, thiab cov npe khoom ntawm cov khoom siv; cov khoom lag luam qis dua tsis tuaj yeem ua qhov no. Vim tias cov kav dej muaj txiaj ntsig siv 100% nkag PPR cov khoom nyoos, thiab cov kav dej qis siv tsuas yog siv ib feem ntawm PPR raw khoom, muaj qhov sib txawv ntawm kev ua tau zoo ntawm ob.
B. Kev nruj: PPR cov kav dej ntawm qhov zoo muaj qhov tawv zoo thiab tuaj yeem yooj yim khoov rau hauv lub voj voog tsis muaj qhov tawg, thaum cov kav dej qis dua yog nkig thiab tawg tam sim ntawd tom qab khoov.
C. Kev nthuav dav thiab kev thau tawm: Cov raj xa dej muaj peev xwm tseem tuaj yeem tswj tau qhov nyuaj ntawm qhov dej kub, thaum cov kav dej qis dua tau muag ntawm 60 degrees dej kub.
D. Kev pab lub neej: 50-xyoo lav rau cov khoom lag luam zoo, tsuas yog 5-6 xyoo rau cov khoom lag luam qis dua.
Aluminium-yas puas raj
A. Tshawb cov tsos ntawm cov khoom
Kev ua tau zoo los ntawm cov yeeb yaj kiab txhuas feem ntau ua rau du ntawm sab nraud, thiab lub cim, qhov tshwj xeeb, siv qhov kub thiab txias, thiab tus naj npawb ntawm cov ntsuas ntawm cov yeeb nkab phab ntsa tau cim meej meej. Cov chaw tsim khoom kuj luam tawm tus lej ntau lawm ntawm cov yeeb nkab phab ntsa los npaj rau kev soj ntsuam cov khoom kom zoo txhua lub sijhawm; cov khoom lag luam tau ntim zoo thiab ntim khoom Cov logos muaj ntau yam nyob rau saum toj saud kuj tau pom tseeb, thiab lub chaw tsim khoom' s npe, chaw nyob, xov tooj, thiab lwm yam tau luam tawm ntawm cov haujlwm tseem ceeb. Cov khoom lag luam qis thiab qis qis feem ntau muaj qhov ntxhib sab nraud, tsis meej lossis tsis tiav, kos ntim yooj yim, thiab thaj chaw tsis paub lossis xov tooj.
B. Cov txheej txhuas tsis tuaj yeem tsis quav ntsej
Ib qho zoo-txhuas-txheej yas yeeb nkab tau vuam thaum sib tshooj ntawm txhuas txheej, thiab txhuas txheej thiab yas txheej sib xyaw ua ke tsis muaj teeb meem. Qee cov txheej txheem aluminium tsis txuas, thiab qee txheej txhuas thiab yas ua qauv ntau txheej thiab tsis nruj.
Plaub qhov los qhia koj kom paub qhov tseeb thiab tsis tseeb PPR cov kav dej
Saib mus rau yav dhau los: zoo PP-R dej yeeb nkab muaj qhov ci ci thiab oily, thiab qhov tsis zoo PP-R dej yeeb nkab muaj xim tsis zoo li qub vim cov yas qis dua lossis txawm siv cov hmoov ua hmoov. Ntu txiav yog qhuav thiab roj-dawb, thiab nws hnov zoo li ntxiv chalk grey.
Qhov thib ob kov: sab hauv thiab sab nrauv phab ntsa ntawm cov yeeb yaj kiab zoo PP-R dej yog du, tsis muaj qhov tsis sib luag, thiab sab hauv phab ntsa ua tsis tau zoo PP-R dej yeeb nkab yog ntxhib thiab tsis ncaj.
Peb kab: Qhov nyhav tshaj ntawm cov dej zoo PP-R kav dej hnyav dua qhov hnyav dua li cov dej tsis zoo PP-R dej kav dej. Txij li feem ntau ntawm cov yeeb yaj kiab zoo-PP-R hlau yeeb fittings muaj cov ntawv tooj liab nrog ntau tshaj peb qhov tsis muaj dej tsis muaj lub qhov rooj (cov ntsiab lus tooj yog ntau dua li ntawm 50%) 8) Lub qhov tooj yog ntev dua hauv qhov loj me thiab thicker, yog li qhov hnyav hnyav dua li qhov qis tshaj PP-R yeeb nkab qhov.
Plaub hlawv: Khoom siv zoo PP-R yog cov khoom siv hydrocarbon saw txuas. Thaum cov nplaim hluav taws kub dua li ntawm 800 degrees Celsius, nyob rau hauv kev sib txuas zoo tagnrho thiab muaj cov pa oxygen txaus, kev sib txuas lus tsuas yog tso tawm los ntawm cov pa roj carbon dioxide thiab dej nqus. Yuav tsum tsis txhob muaj ntxhiab tsw thiab Residue, qis dej PP-R dej yeeb nkab tau muab sib xyaw nrog cov yas qis thiab lwm yam cuam tshuam, yuav muaj tus ntxhiab tsw thiab khib thaum hlawv. Nws tuaj yeem paub los ntawm kev txiav cov ntawv los ntawm PP-R dej yeeb nkab thiab hlawv nws nrog lub teeb ci.
