Umgca we-Extrusion Pipe weSilicon Coating

Umgca wemveliso unokukhupha imibhobho emininzi esisiseko ngaxeshanye, ukhululeke ngesantya esiphezulu, kwaye ugqume ngokukhawuleza nangokulinganayo isingxobo sangaphandle. Ukudibanisa okulinganayo, ukunqunyulwa kunye nokujijeka kwemveliso egqityiweyo kulawulwa yikhompyutha, ngesantya esiphezulu semveliso kunye nokusebenza kakuhle.

Umbhobho we-HDPE ngumbhobho weplastiki oguquguqukayo owenziwe nge-polyethylene ephezulu ye-thermoplastic esetyenziswa kakhulu ekudluliseleni ulwelo oluphantsi kobushushu kunye negesi. Kutshanje, imibhobho ye-HDPE ifumene ukusetyenziswa kwayo okukhulu ekuthwaleni amanzi okusela, inkunkuma enobungozi, iigesi ezahlukeneyo, udaka, amanzi omlilo, amanzi emvula, njl. Ukubopha okuqinileyo kwe-molecular yezixhobo zepayipi ye-HDPE kuyinceda ukuba isebenzise imibhobho ephezulu. Imibhobho ye-polyethylene inembali ende nebalaseleyo yenkonzo yegesi, ioyile, imigodi, amanzi, kunye neminye imboni. Ngenxa yobunzima bayo obuphantsi kunye nokumelana nokugqwala okuphezulu, ishishini lemibhobho ye-HDPE likhula kakhulu. Ngonyaka we-1953, uKarl Ziegler no-Erhard Holzkamp bafumanise i-polyethene ephezulu (HDPE). Imibhobho ye-HDPE ingasebenza ngokwanelisayo kuluhlu olubanzi lobushushu ukusuka kwi--2200 F ukuya kwi-+1800 F. Nangona kunjalo, ukusetyenziswa kweMibhobho ye-HDPE akucetyiswa xa ubushushu bolwelo budlula i-1220 F (500 C).

Iipayipi ze-HDPE zenziwa ngokupholisha i-ethylene, imveliso ephuma kwioyile. Izongezo ezahlukeneyo (izinzisi, izizalisi, iiplastiki, izithambisi, izithambisi, izinto zokufaka imibala, izinto ezithintela ilangatye, izinto ezivuthuzayo, izinto ezidibanisayo, izongezo ezinokubola nge-ultraviolet, njl.njl.) zongezwa ukuvelisa umbhobho wokugqibela we-HDPE kunye nezinto. Ubude bepayipi ye-HDPE benziwa ngokufudumeza i-resin ye-HDPE. Emva koko ikhutshwa ngedayi, emisela ububanzi bombhobho. Ubukhulu bodonga lwepayipi bumiselwa kukudibanisa ubungakanani bedayi, isantya sesikrufu, kunye nesantya setrekta yokuthutha. Ngokwesiqhelo, i-3-5% yekhabhoni emnyama yongezwa kwi-HDPE ukuyenza ingangeni kwi-UV, nto leyo eguqula iipayipi ze-HDPE zibe mnyama ngombala. Kukho ezinye iintlobo zemibala kodwa azisetyenziswa rhoqo. Umbhobho we-HDPE onemibala okanye onemigca uhlala uyinto emnyama engama-90-95%, apho umgca onemibala unikezelwa kwi-5% yomphezulu wangaphandle.