Nyaya yePlastiki inyaya yekubudirira.Uye hwaro hwekubudirira ikoko chido chemunhu chehupenyu huri nani.Plastiki - kupfuura chero chinhu chipi nechipi, yakamutsa chido chesayenzi.Kugadzira mapurasitiki ane hunyanzvi hunyanzvi hwekuita basa inyaya isingaperi.
Pombi yepurasitikimasisitimu anozadzisa zvakasiyana-siyana zvebasa rinodiwa.Izvi zvinodikanwa zvakanyatsotsanangurwa mune yakazara seti yeEuropean Product Standards kune yega yega application pamwe chete neavo chaiwo maitiro.Semuyenzaniso:
- Kufambiswa kwemvura yekunwa: Hutsanana zvinodiwa
- Kuendesa gasi: Yakanyanya Kuchengetedzeka zvinodiwa
- Mapaipi epurasitiki ekudziya kupisa uye kupisa kwepasi: Tembiricha kuramba kwemakumi emakore
- Sewer applications: High chemical resistance
Mapaipi epurasitiki anokwanisa zvakakwana kuzadzisa chinodiwa kune yega yega application.Vanozviita nehupamhi hwekuita kwehupenyu hurefu uye nekuvimbika uye kuchengeteka.
Chinhu chakakosha chekubudirira chinowanikwa nekuchengetedza nguva dzose mazinga emhando yepamusoro.Kune zvigadzirwa zvepombi yepurasitiki, mazinga aya anotsanangurwa zvakanyanya nemhando dzakasiyana.
Zvinhu zviviri zvakakosha zvakakosha pakuita kwakanaka kwemapombi epurasitiki: kuchinjika uye hupenyu hurefu.
Kuchinjika:Mapaipi ePlastiki anokamurwa nekuomarara kwemhete.Makirasi ekuomarara akasarudzika sekutsanangurwa kwakati wandei zvigadzirwa ndeaya: SN2, SN4, SN8 uye SN16.Kuomarara kwemhete kwepombi kwakakosha kana vachizomira kurodha kunze panguva yekuiswa.Iyo yakakwirira yemufananidzo, iyo pombi yakaoma!
Mushure mekuisirwa kwakaringana, kutsauswa kwepombi kunoramba kuri kushoma asi kunoenderera mberi kwechinguva.Nezve ivhu rayakaiswa mukati, pombi yepurasitiki inoita nenzira 'inoshanduka'.Izvi zvinoreva kuti kuwedzera kutsauka munguva kunoenderana nekugadziriswa kwevhu rakatenderedza pombi.
Chaizvoizvo, pombi inotevera kufamba kwevhu kana kugadziriswa kweiyo backfill, sekudana kwazvinoitwa nevanyanzvi.Izvi zvinoreva kuti kuiswa zvakanaka kwepombi kuchaita kuti ivhu rigare zvakanaka.Kumwe kutsauka kucharamba kuri kushoma.
Kune mapaipi anoshanduka, kutakurwa kwevhu kunogoverwa uye kunotsigirwa nevhu rakapoteredza.Kushungurudzika uye kushungurudza kunokonzerwa nekutsauka kwepombi kuchaitika mukati memadziro epombi.Nekudaro, iyo induced stress haimbofa yakapfuura iyo inobvumirwa muganhu wetsika.
Iyo thermoplastic maitiro eiyo pombi zvinhu zvekuti iyo induced stress inozorora kusvika yakaderera zvakanyanya.Izvo zvinofanirwa kucherechedzwa kuti induced strains ari kure pasi pemazinga anotenderwa.
Uyu hunhu hunoshanduka hunoreva kuti pombi haizokundikane.Iyo inongoratidzira yakawedzera kutsauka ichichengeta basa rayo pasina kutyora.
Nekudaro, mapaipi akaomarara nehunhu hwawo haachinjike uye haazoteveri mafambiro epasi.Vachatakura zvinhu zvose zvevhu, chero kugadzirisa kwevhu.Izvi zvinoreva kuti kana pombi yakaoma iri pasi pekunyanya kurodha, inozosvika painogumira yehutsika hwekushushikana nekukurumidza uye kutyora.
Saka zvinogona kugumiswa kuti kuchinjika kwepombi dzepurasitiki kwakadai zvekuti inopa humwe humwe hukuru hwekuchengetedza.Mapaipi akavigwa anoda kuchinjika.
Hupenyu Hurefu Nguva:Mapombi epurasitiki ave achibudirira kushandiswa mubasa kwemakore anopfuura makumi mashanu.Hupenyu hwakafanotaurwa hwemapombi epurasitiki masisitimu anodarika makore zana.Zvidzidzo zvakawanda zveindasitiri zvakaratidza fungidziro iyi.
Plastiki pombi zvinhu zvagara zvakarongerwa pahwaro hwenguva refu yekumanikidza kuyedzwa.Iyo yakayerwa yekutadza nguva sebasa rekushushikana mumadziro epombi yakaratidzwa mune iyo inonzi Regression Curves.
An extrapolation yakavakirwa kuyerwa kutadza nguva yakaverengerwa kusvika makore makumi mashanu.Izvo zvakafanotaurwa kutadza kushushikana pamakore makumi mashanu zvakatorwa sehwaro hwekuronga.Kukosha uku kunonzi MRS, Minimum Required Stress, pamakore makumi mashanu.
Safety Factor:Kubva pamutengo weMRS wakakodzera, chinhu chekuchengetedza chinoshandiswa kuti chisvike pakushushikana kwekugadzira kubva kune iyo zita rekumanikidza PN yakaverengerwa.Yakajairika kuchengetedza zvinhu ndeye PE 1,25 uye yePVC 2,0.Iyo inokodzera zita rekumanikidzwa kwepombi yepurasitiki saka inosanganisira kuchengetedza chinhu, izvo zvinoguma neyakachengetedzeka dhizaini yepiping system.
Saka zvinosimbiswa kuti iyi kupatsanurwa kwepombi dzepurasitiki hakuna chekuita nehupenyu chaihwo hwakafanotaurwa hwepombi dzepurasitiki.Izvi zvinogona kutora nguva yakareba.Ongororo dzakati wandei dzakaburitswa nguva pfupi yadarika dzinoratidza kuti mapaipi ePVC nePE acharamba akareba kupfuura makore zana.
Nguva yekutumira: Feb-27-2018