HDPE chubhu: unhu uye mafomu

Plastic zvishongedzo kuti pombi dzemvura akazviratidza munyika yedu pamusoro pakati 90s remakore rapfuura, pashure zvavakanga rinenge pakarepo chakatsiva simbi uye simbi dzomuzana. Izvi ndezvechokwadi kunyanya pane pombi yemvura. Zvinoita sokuti munguva ino HDPE nyere (hunhu yatiri tsanangura pazasi), vakanga varatidza pachavo kuti mukuru, asi vamwe vedu vachiri mapurasitiki pamwe imwe kusava nechokwadi. Ngatimbotaura zvakawanda pamusoro chigadzirwa ichi.

Kubva chii sepombi izvi anogadzirwa?

Kurimwa zvemichina akadaro kuti ethylene mamorekuru crosslinking muitiro kunoitika panguva kumanikidzwa 5 kg / masendimita ^2. Akaumba zvinhu aine arambe achirema pamusoro 0,941 g / cm kuva kuomarara wakanaka. Nokuda sekristaro chimiro, kwakatosiyana opacity. Sezvo ethylene zvakabatana kuva chiine Morekuru pamwe shoma branching, simba zvichizoita zvinhu zvakakwirira zvikuru. HDPE inonyunguduka panguva tembiricha vanenge 130 inegumi, saka kuti mureza kushandiswa zvigadzirwa kusunungura kutya kwavo kukundikana nemhaka tembiricha chinhu haufaniri. Saka, HDPE mutopota, zvainyanya zvacho zvakanaka, akakwana kuti mudzimba mvura enyika.

Uyezve, ane rakaisvonaka kuramba acids uye mafuta, izvo zvinoita nyere kudaro Zvakanyanya Kunaka Panguva Yepamuviri kukwikwidza kuti hwakawanda pombi dzemvura mugadziriro kwete chete, asiwo tsvina. Zvinofanira kucherechedzwa kuti rinogonawo wakatsemuka, asi achishandisa mukuru-samolecular mavanga vasingazoiti kuitika pasi zvimwe ezvinhu. Pfungwa HDPE mutopota, unhu akakwirira zvikuru, rinoshandisirwa pana kutonhora kusvika -50 Celsius.

Uyezve, HDPE rinobudiswa kavha firimu, zvikwepa uye kuputira kuti mukuru-voltage netambo, mambure inodiwa, fenicha nenhumbi pacharo, uyewo pasi nezvimwewo hombe.

The chikuru zvechadenga chigadzirwa

Zvisinei, isu vanofarira kwete zvikuru hwokugadzira zvivako utava uye nenhumbi, sezvo zvakananga kuti pombi pachavo. Ngatitarisei navo zvizere.

Chekutanga, hwavo upenyu basa - kanenge hafu yezana remakore. MaKemisiti ari okuma50 okupedzisira remakore akateya kutsiga akadaro zano ravo. Sezvatakamboreva, havana pachena kuti hasha namakemikari runyararo. Uyezve, pombi dzakagadzirwa polyethylene hazvisi rakarasika dzenzvimbo, ukuwo mapaipi simbi inogona kuparadzwa navo nguva anoverengeka chete. Kunyange mari dzavo nokuisa pazasi anenge ane hurongwa unokosha: pakupedzisira, kana zvakakodzera, kuti titsungirire basa rakadai, kunyange mumwe munhu. Uye zvose izvi - HDPE nenyere. Technical tsika yavo kushandiswa akaratidza kuti kunyange scum the havasi kuumbwa, saka kuti aifanira nezvibhakera uye kukuvadza midziyo inogona zvakachengeteka kukanganwa.

Ona kuti kunyange panguva yakaderera chaizvo ambient tembiricha, izvo zvinozoita kuti atsamwira neezvitendero simbi zvigadzirwa, polyethylene anoramba zvachose kukuvara. Izvi imhaka yokuti chafariz conductivity ino zvinhu yakaderera chaizvo. Ndicho chikonzero HDPE nyere (hunhu izvo takawongorora) anogona zvakafanana zvakanaka kushandiswa kwete chete pane okunze, asiwo Far North. Panzira, kunyange panguva zvikuru yakaderera tembiricha kana mvura ichiri chando mukati chigadzirwa, hapana zvinotyisa zvichaitika: a polyethylene kuwedzera nokuda 5-7%, saka kuti chando havazokwanisi kuti ribvise kumusoro.

ehupfumi izvi zvinopa kwazvo kuramba waterhammer, zvokuti kunyange antics kwezvirongwa mabasa hakurevi pangozi here. Kana chinhu chinoitika, rokugadziridza haangavi kutora nguva yakawanda. Uyezve, HDPE mutopota, hunhu icho kubvumira nomoto kwayo, pamwe nguva havazotadzi simba kunyange welds.