Nrog rau lub advent ntawm lub caij zoo nkauj, muaj coob tus neeg yog cov tibneeg hu tauj coob decorating lawv cov nests kev hlub. Yuav ua li cas xaiv cov kav dej ntawm txoj cai yog qhov tseem ceeb rau cov neeg siv khoom. Cov neeg feem ntau xaiv cov yeeb nkab yog lub ntiaj teb sab nraud, to taub qhov zoo thiab qhov tsis zoo ntawm cov kav dej ntau, xaiv PPR cov yeeb nkab, tiam sis tsis paub yuav ua li cas xaiv cov formula nram qab no, qhia koj kom yooj yim txheeb xyuas seb PPR cov yeeb nkab zoo los yog phem.
Kov
Txawm hais tias qhov zoo nkauj zoo nkauj thiab seb puas yog qhov tsis zoo. PPR leeg yog tam sim no dawb, grey thiab ntsuab nyob rau hauv kev ua lag luam. Raws li ib txwm muaj, cov yas siv dua qub tsis tuaj yeem dawb, yog li ntawd cov neeg tau txais kev xav tias dawb yog qhov zoo, qhov tseeb, qhov kev pom no yog ib qho kev sib sab laj. Raws li kev siv technology tshiab, xim tsis yog ib qho qauv zoo rau kev txheeb xyuas PPR kav. Txawm tias lub raj zoo los sis phem, nws tsis daws qhov teeb meem, kov, qhov hais tsis sib haum yuav tsum tov nrog lwm cov impurities.
Hnov
Yog tsis hnov tsw. Cov khoom tseem ceeb ntawm cov PPR yeeb nkab yog polypropylene. Cov yeeb nkab zoo tsis muaj tsw, thiab cov neeg pluag muaj ib tus ntxhiab tsw txawv. Nws yog feem ntau yuav tsum tau blended nrog polyethylene es tsis txhob polypropylene.
pinch
PPR raj muaj lub zog hnyav thiab yuav raug ntsia rau hauv lub raj ntawm qhov yuav, tsis yog PPR raj.
砸
PPR raj zoo, "elastic" zoo, yooj yim heev rau tuav cov neeg pluag PPR raj. Tab sis qhov hardness yog tsis sib npaug zos rau qhov yooj. Yuav ua li cas zuaj qhov tawg PPR raj, cov neeg tau txais kev pab tsis ntseeg. Vim tias qee tus neeg txhaum cai tsis ua rau kom cov yeeb nkab hnyav ntxiv los ntawm kev ntxiv ntau hom impurities xws li calcium carbonate, cov yeeb nkab yog nphav tawg rau lub sijhawm ntev.
Hlawv
Ntaus thiab hlawv, zoo heev thiab tseem ceeb heev. Cov ntaub ntawv raw yog tov nrog cov yas siv dua tshiab thiab lwm yam tsis zoo. PPR raj yuav muaj pa luam yeeb dub thiab tsis hnov tsw ntxhiab. Cov khoom siv zoo yuav tsis hlawv tom qab hlawv, tsis muaj tsw, thiab cov dej ua kua raug tseem yuav huv si tom qab hlawv.
Feem ntau, nyob rau hauv cov dej hiav txwv, cov kav dej yuav raug hloov, thiab cov kav dej kub xaiv los ntawm cov tuam txhab hauv tsev thiab cov chaw ua haujlwm hauv PPR cov dej xa tuaj yuav yog cov kav dej kub hauv dej los ntawm cov dej txias. Cov kev sib cav yog vim tias cov kev tsis tau ntawm cov dej kub yeeb nkab yog siab tshaj qhov dej txias yeeb nkab, qhov txawv qhov txawv tsis loj, yog li cov dej hloov pauv mus nrog cov dej kub cov yeeb nkab. Lwm qhov tseeb yog tias txawm tias koj xav yuav qhov dej txias tub lag luam, nws yog qhov yooj yim mus yuav, vim tias cov dej khis dej txias tsuas yog siv cov cuab yeej ua lag luam, thiab tsis muab kev ua lag luam hauv tsev.
Yeeb nkab kab
Qhov taub ntawm PPR raj yuav yog los ntawm 16 hli mus rau 160mm, thiab siv lub ntsiab hauv lub tsev kho kom zoo nkauj yog 20mm, 25mm (feem ntau hu ua 4-raj, 6-raj), ntawm 4 lub raj siv ntau dua.
Phab ntsa thickness
Muaj ob hom kev 2.8 hli thiab 3.4 hli. Cov neeg lag luam yuav hais tias qhov kawg ntawm lub siab muaj peev xwm loj tshaj qhov qub. Qee cov neeg tsis xav li ntawd. Vim tias lub khw tsim tawm 2.8 phab ntsa thickness, nws yuav tsum tau sim tau tso cai. Dej siab nws tuaj yeem tiv thaiv yuav tsum tau ua raws li lub tebchaws. Yog vim li cas koj thiaj ua tau nws yog tsim 3.4; nyob rau tib lub sij hawm, lub thicker lub yeeb nkab phab ntsa, lub me me lub cheeb ntawm cov yeeb nkab, me me dej ntws.
Cov yeeb nkab PPR muab faib ua dej txias thiab kav dej kub. Qhov txawv yog qhov dej txias yeeb nkab muaj xim xiav thiab kab dej kub yog lub xaim liab.
