Kusokonezedwa ndi zosankha zonse za pulasitiki? Kusankha yolakwika kungayambitse kuchedwa kwa ntchito, kutayikira, ndi kukonza kodula. Kumvetsetsa zoyika za PP ndikofunikira pakusankha gawo loyenera.

Zopangira PP ndi zolumikizira zopangidwa kuchokera ku polypropylene, thermoplastic yolimba komanso yosunthika. Amagwiritsidwa ntchito makamaka kujowina mapaipi muzinthu zomwe zimafuna kulekerera kutentha kwakukulu komanso kukana kwambiri kwa mankhwala, kuwapanga kukhala abwino kwa mafakitale, ma labotale, ndi ntchito zamadzi otentha.

Posachedwapa ndinayimba foni ndi Budi, woyang'anira zogula ku Indonesia. Ndi katswiri wa PVC koma anali ndi kasitomala watsopano wofunsa "Ma compression a PP"Kukonzanso kwa labotale. Budi sanali wotsimikiza kwathunthu za kusiyana kwakukulu komanso nthawi yoti avomereze PP pa PVC yemwe amadziwa bwino kwambiri. Ankada nkhawa ndi kupereka malangizo olakwika. Mkhalidwe wake ndi wofala. Akatswiri ambiri amadziwa mtundu umodzi kapena iwiri ya zida zapaipi koma amapeza kuti mitundu yambiri ya pulasitiki ndi yolemetsa. thyola zomwe zimapangitsa kuti zopangira PP zikhale gawo lofunikira pamapaipi amakono.

Kodi PP ndi chiyani?

Muyenera kulumikiza mapaipi kuti mupeze ntchito yovuta, koma simukudziwa ngati PVC ingathe kuigwira. Kugwiritsa ntchito zinthu zolakwika kungayambitse kulephera kwadongosolo komanso kukonzanso kokwera mtengo.

Kuyika kwa PP ndi chingwe cholumikizira chopangidwa kuchokera ku pulasitiki ya polypropylene. Zomwe zimafunikira kwambiri ndikukhazikika kwa kutentha kwambiri (mpaka 180 ° F kapena 82 ° C) komanso kukana kwambiri ma acid, alkalis, ndi mankhwala ena owononga, ndichifukwa chake amasankhidwa pa PVC yokhazikika m'malo enaake.

Tikayang'ana mozama pakuyenerera kwa PP, timayang'ana kwenikweni mawonekedwe a polypropylene palokha. MosiyanaZithunzi za PVC, yomwe imatha kukhala yolimba ndi mankhwala ena kapena kupunduka pa kutentha kwakukulu, PP imasunga kukhulupirika kwake. Izi zimapangitsa kukhala chinthu chopitira ku zinthu monga mizere ya zinyalala za mankhwala mu labotale yaku yunivesite kapena malupu ozungulira madzi otentha mnyumba yamalonda. Ndinafotokozera Budi kuti pamene onse PVC ndiZithunzi za PPkulumikiza mapaipi, ntchito zawo ndi zosiyana kwambiri. Mumagwiritsa ntchito PVC pomanga mapaipi amadzi ozizira. Mumagwiritsa ntchito PP pamene kutentha kapena mankhwala akukhudzidwa. Nthawi yomweyo anamvetsa. Sikuti "chabwino," koma chomwe chirichida choyenerapa ntchito yeniyeni imene kasitomala wake ayenera kuchita.

PP vs. PVC Fittings: Kuyerekezera Mwamsanga

Kuti chisankhocho chimveke bwino, apa pali kufotokozera kosavuta komwe chinthu chilichonse chimawala.

Kodi PP ikutanthauza chiyani pakupanga mapaipi?

Mukuwona zilembo "PP" pamndandanda wazogulitsa, koma akutanthauza chiyani pamakina anu? Kunyalanyaza ma code azinthu kungapangitse kuti mugule chinthu chomwe sichoyenera.

Mu mapaipi, PP imayimira Polypropylene. Ndilo dzina la polima la thermoplastic lomwe limagwiritsidwa ntchito kupanga chitoliro kapena kuyenerera. Chizindikirochi chimakuwuzani kuti mankhwalawa amapangidwira kukhazikika, kukana kwamankhwala, komanso magwiridwe antchito pamatenthedwe okwera, kusiyanitsa ndi mapulasitiki ena monga PVC kapena PE.

Polypropylene ndi gawo la banja lazinthu zotchedwathermoplastics. Mwachidule, izi zikutanthauza kuti mutha kutenthetsa mpaka kusungunuka, kuziziziritsa, ndikuzitenthetsanso popanda kuwonongeka kwakukulu. Katunduyu amapangitsa kuti zikhale zosavuta kupanga mawonekedwe ovuta ngati ma tee-fittings, ma elbows, ndi ma adapter kudzera mu jekeseni. Kwa woyang'anira kugula monga Budi, kudziwa "PP" kumatanthauza polypropylene ndi sitepe yoyamba. Chotsatira ndikumvetsetsa kuti pali mitundu yosiyanasiyana ya PP. Awiri ofala kwambiri ndiPP-H(Homopolymer) ndi PP-R (Random Copolymer). PP-H ndiyokhazikika ndipo imagwiritsidwa ntchito nthawi zambiri pamafakitale. PP-R ndi yosinthika kwambiri ndipo ndi muyezo wapaipi yamadzi otentha ndi ozizira m'nyumba. Kudziwa izi kumamuthandiza kufunsa makasitomala ake mafunso abwinoko kuti atsimikizire kuti apeza zomwe akufuna.

Mitundu ya Polypropylene mu Piping

Kodi PP pipe ndi chiyani?

Mufunika chitoliro cha madzi otentha kapena mzere wa mankhwala ndipo mukufuna kupewa dzimbiri zachitsulo. Kusankha chitoliro cholakwika kungayambitse kuipitsidwa, kutayikira, ndi moyo waufupi wautumiki.

Chitoliro cha PP ndi chubu chopangidwa kuchokera ku pulasitiki ya polypropylene, yopangidwa makamaka kunyamula zakumwa zotentha, madzi amchere, ndi mankhwala osiyanasiyana mosamala. Ndiwopepuka, sachita dzimbiri, ndipo imapereka malo osalala amkati omwe amalimbana ndi kuchulukana, kuwonetsetsa kuti madzi akuyenda nthawi zonse.

Mapaipi a PP amagwiritsidwa ntchito limodzi ndi zopangira PP kupanga dongosolo lathunthu, lofanana. Ubwino umodzi waukulu ndi momwe amalumikizirana. Kugwiritsa ntchito njira yotchedwakutentha maphatikizidwe kuwotcherera, chitoliro ndi zokometsera zimatenthedwa ndikuphatikizidwa pamodzi kwamuyaya. Izi zimapanga mphamvu,cholumikizira chosadukizayomwe ili yolimba ngati chitoliro chokha, kuchotsa mfundo zofooka zomwe zimapezeka mumagulu a glued (PVC) kapena ulusi (zitsulo). Nthaŵi ina ndinagwira ntchito ndi kasitomala pa malo atsopano opangira chakudya. Iwo anasankha chodzazaPP-R ndondomekokwa madzi awo otentha ndi mizere yoyeretsera. Chifukwa chiyani? Chifukwa zinthuzo sizingalowetse mankhwala aliwonse m'madzi, ndipo zolumikizanazo zimatanthawuza kuti panalibe mikwingwirima yoti mabakiteriya akule. Izi zinatsimikizira chiyero cha mankhwala awo ndi chitetezo cha ndondomeko yawo. Kwa iwo, ubwino wa chitoliro cha PP chinadutsa mipope yosavuta; inali nkhani ya kuwongolera khalidwe.

Kodi PB Fittings ndi chiyani?

Mumamva zokokera za PB ndikudabwa ngati zili m'malo mwa PP. Kusokoneza zipangizo ziwirizi kungakhale kulakwitsa kwakukulu, chifukwa munthu ali ndi mbiri ya kulephera kofala.

Zolumikizira za PB ndi zolumikizira mapaipi a Polybutylene (PB), chida chosinthika chomwe chimagwiritsidwa ntchito popanga mapaipi okhalamo. Chifukwa cha kulephera kwakukulu kuchokera ku kuwonongeka kwa mankhwala, mapaipi a PB ndi zoikira zake sizikuvomerezedwanso ndi ma code ambiri a mapaipi ndipo amaonedwa kuti ndi achikale komanso osadalirika.

Iyi ndi mfundo yofunika kwambiri ya maphunziro kwa aliyense m'makampani. Ngakhale PP (Polypropylene) ndi zinthu zamakono, zodalirika, PB (Polybutylene) ndiye gwero lake lamavuto. Kuyambira m'ma 1970 mpaka 1990s, PB idayikidwa mofala kuti mizere yamadzi otentha ndi ozizira. Komabe, zidadziwika kuti mankhwala omwe amapezeka m'madzi am'matauni, monga chlorine, amaukira polybutylene ndi zida zake zapulasitiki, zomwe zimawapangitsa kukhala osalimba. Izi zinayambitsa ming'alu yadzidzidzi ndi kutayikira koopsa, zomwe zinapangitsa mabiliyoni a madola kuwonongeka kwa madzi m'nyumba zosawerengeka. Budi akalandira pempho la apo ndi apo la zokokera za PB, nthawi zambiri zimakonzedwa. Ndamuphunzitsa kuti azilangiza makasitomala nthawi yomweyo za kuopsa kwa dongosolo lonse la PB ndikulangiza kuti alowe m'malo mwake ndi zinthu zokhazikika, zamakono monga.PP-R or PEX. Sizokhudza kupanga kugulitsa kwakukulu; ndi za kuteteza kasitomala ku kulephera mtsogolo.

Polypropylene (PP) vs. Polybutylene (PB)

Mapeto

Zida za PP, zopangidwa kuchokera ku polypropylene yolimba, ndizomwe mungasankhe pamakina amadzi otentha ndi mankhwala. Ndiwo njira zamakono, zodalirika, mosiyana ndi zakale, zidalephereka monga polybutylene.