Kuyamba kwa zakuthupi
Ntchito yotsutsa kusefukira kwa chitoliro cha PVC-M, chinthu chosinthidwa cha zinthu za chitoliro cha PVC, ndibwino kuposa cha PVC-U
Moyo wautali wa PVC umatanthawuza zomwe zimachitika pakakhala zovuta zochepa kapena zovuta, moyo wake ndiwotalikirapo kuposa PE ndi mapulasitiki ena, ndipo mphamvu yayitali ya PVC ndiyoposa kapena yofanana ndi 25Mpa, ndipo PE100 ndiyoposa kapena wofanana ndi 10Mpa.Koma PVC yofananira ndi PE ndi "yopepuka" pang'ono. Ndiye kuti, zovuta sizivuta kuvulala, ndipo mphamvu yayitali ndiyotsika. Chifukwa chake, muyezo wadziko lonse, UPVC imagwiritsa ntchito chitetezo cha 2.5 ∮90 kapena 2.0 (∮110 kapena kupitilira apo)) kupanga chitoliro, pomwe PE imagwiritsa ntchito chitetezo cha 1.2 (PE100) kupanga chitolirocho. Mwanjira ina, bola ngati UPVC ndiyopepuka, imangothandiza kukonza magwiridwe antchito a chitoliro (chitetezo chokwanira sichofunikira) .Ikhozanso kuthana ndi kusinthasintha ndi momwe zinthu ziliri pakapangidwe kazinyumba.
Kuti tikhale osavuta kwa ogwiritsa ntchito, tadzipereka kukonza kulimba kwa PVC ndikuchepetsa kapangidwe kachitetezo.Nthawi yomweyo mulole wogwiritsa ntchito azikhala omasuka kugwiritsa ntchito chitoliro cha PVC, adachita kafukufuku wambiri. Kuonetsetsa kuti kulimba kulimba, njira yokhayo yowonjezereka yopanda pulasitiki idavomerezedwa, ndipo pomaliza pake payipi ya PVC-M idapangidwa.
Poganizira kuti sichichepetsa mphamvu yayitali, kulimba kwake kumakhala kokwana 5 ~ 10 kuposa komwe UPVCndipo mphamvu ya notch imaposa 30MPa (20 ℃), yomwe imaposa katatu maulendo a UPVC. kulimba kumawongoleredwa, kulephera kuzindikira kumachepetsedwa, ndipo chitoliro sichovuta kuvulazidwa kapena kuchuluka kwa kuvulala kumachepa kwambiri, kuti mphamvu yamphamvu yayitali ikhale yaying'ono. 1.6 (Pamavuto omwe ali pamwambapa, chovomerezekacho chatsimikiziridwa ndi mayiko ambiri, osanenapo za kulimba mtima kwa kampani yathu ya PVC-M ndikoposa kuyeserera kwake). Ngakhale mtengo wa PVC-M ndiwokwera kuposa UPVC, mtengo pa mita siwokwera kuposa UPVC chifukwa chotsika mtengo wa chitetezo chokwanira komanso makulidwe ochepera khoma.
Mwanjira imeneyi, chitoliro cha PVC-M chili ndi maubwino a chitoliro cha PE ndi UPVC kukhazikitsa kosavuta ndikukonzanso.Nthawi yomweyo, mtengowo sukwera kuposa chitoliro cha UPVC, pafupifupi 30% poyerekeza ndi chitoliro cha PE pa mita. ziyembekezo zokulirapo kuposa mapaipi a UPVC ndi PE.
Kusiyana pakati pa
Makina a PVC PVC ali ndi zaka pafupifupi 70 za mbiri yachitukuko, chifukwa cha modulus, mphamvu yayikulu komanso mtengo wotsika wakhala ntchito yayikulu kwambiri padziko lonse lapansi ya mapaipi apulasitiki. zasintha kwambiri ndipo kuchuluka kwakukula m'maiko ena ndi madera ofunsira kuchepa kwatsika.
Ngakhale China dongosolo PVC chitoliro wapanga linanena bungwe pachaka matani oposa 1 miliyoni lonse lonse, koma akhala mu chikhalidwe PVC-U osiyanasiyana, mabizinezi ambiri samvetsa azimuth ndi patsogolo luso mayiko PVC chitoliro luso, chifukwa kupita patsogolo kwaukadaulo kumachedwetsa kuletsa kupititsa patsogolo ndikugwiritsa ntchito.
Dziko likufufuza mosalekeza kukonza magwiridwe antchito a chitoliro cha PVC ndikukulitsa gawo logwiritsira ntchito chitoliro cha PVC, ndipo lachita bwino kwambiri mzaka khumi zapitazi.
- Limbikitsani kulimba mwa kusinthidwa, pangani mitundu yosiyanasiyana ya chitoliro cha PVC chosakanikirana ndi kukana kwakanthawi ndikukhala ndi mphamvu yayikulu, yotchedwa PVC-M kapena PVC-A kapena PVC-HI.
- Kudzera potambasula mbali ziwiri pokonza chitoliro, mawonekedwe am'magazi amatha kusintha kwambiri kulimba komanso kulimba. Nthawi zambiri amatchedwa PVC-O kapena BO-PVC.
- Kukula kwa ntchito, monga: pokonza kusintha kwa chitoliro cha PVC kumatha kupindika, kupindika, ngakhale kuwotcherera.
Kusintha ndi kutukuka kwa zochitika zapadziko lonse lapansi m'zaka zaposachedwa kwapereka mwayi wambiri wakale wopanga mapaipi a PVC ku China. Makina a mapaipi a Polyolefin, omwe amapikisana ndi mapaipi a PVC muma ntchito ambiri, akhudzidwa kwambiri ndi kuphulika kwamitengo yamafuta. , pomwe PVC, yomwe itha kugwiritsidwa ntchito ngati zopangira malasha, yapeza mpikisano pokhala pamitengo yotsika. mu dongosolo la piping la PVC, titha kutsegula mkhalidwe watsopano.
Kodi mapaipi amalumikizidwa bwanji
Mtundu wolumikizira chitoliro cha PVC-M chimakhala chofanana ndi cha PVC-U wamba, ndipo nthawi zambiri pamakhala mitundu iwiri yolumikizira:
1. Mapaipi ang'onoang'ono amamangiriridwa ndi zomatira;
2. Mapaipi akulu akulu amalumikizidwa ndi mphete za mphira;
Mapaipi a PVC-M amalumikizidwa ndi mapaipi ndi zida za zinthu zina, ma flanges ndi ulusi amatha kugwiritsidwa ntchito kuti azilumikize.
