Abantu abaninzi abaqhelananga ne-polyethylene ene-chlorine, kwaye njengoko igama lisitsho, uninzi lwabantu kufuneka lukwazi ukubona kuphela ukuba yinto eyenziwe ngamakhemikhali. Inenkqubo ebizwa ngokuba yi-extrusion molding, esabaluleke kakhulu kwinkqubo yemveliso. Ke namhlanje, yintoni esifanele siyiqwalasele ngexesha lenkqubo yokubumba le mveliso? I-chlorined polyvinyl chloride
1. Kwifomula yezinto eziluhlaza zokwenza imibhobho, kufuneka kuqwalaselwe ukukhethwa kwezinto ezizinzisayo kunye nezinye izixhobo zokucubungula, kugxilwe kakhulu ekuphuculeni ulwelo lokunyibilika kunye nokuphucula uzinzo lobushushu bezinto eziluhlaza. Ukuba kuyimfuneko, izinto eziluhlaza okwesibhakabhaka zingaxutywa kuqala, kwaye iisampuli ezincinci zingathathwa ukuze kuvavanywe. Ukuba akukho nto ibonakalayo yokutshintsha umbala okanye ukubola kwibhokisi yokubonelela engama-230 ℃ kangangeeyure ezi-2, oko kubonisa ukuba ukukhethwa kwezinto ezincedisayo kunengqondo ngakumbi.
2. Ubushushu benkqubo yokubumba i-extrusion yezinto ze-polyvinyl chloride ezifakwe i-chlorine buphezulu kancinci kunobo bemibhobho ye-PVC. Kodwa kufuneka kuqatshelwe ukuba ukuguquguquka kolawulo lobushushu akunakudlula i-± 5 ℃.
3. Ngexesha lokuveliswa kwemibhobho ye-CPVC, ukuba kukho ukucima kombane, ukungasebenzi kakuhle kwezixhobo, iimpawu zokubola kwezinto ezinyibilikayo, okanye umsi ophuma emlonyeni wesikhunta, ukunikezelwa kwezinto eziya kwisikhunta somatshini kufuneka kumiswe ngoko nangoko. I-resin ye-PVC kufuneka isetyenziselwe ukususa izinto ezinyibilikayo ze-CPVC kwisikhunta somatshini, uze emva koko umatshini umiswe ukuze kulungiswe iingxaki.
4. Ngaphambi kokuba i-resin ifakwe kwimveliso, kufuneka yomiswe kwaye iphathwe kwibhokisi yokubonelela engama-80 ℃ kangangeeyure ezi-2-4. Ukuba kuyimfuneko, izinto ezixutyiweyo ezikhawulezayo nazo kufuneka zihluzwe ngesihluzo se-mesh ezingama-40 kube kanye, emva koko zifakwe kwi-extruder hopper ukuze zenziwe.
5. Igesi ye-HCl ekhutshwa ngexesha lokubola kwe-CPVC melt iyingozi kwimpilo yabantu, kwaye kufuneka kuqwalaselwe ukuphefumla umoya kwindawo yokusebenzela yemveliso.
6. Umbhobho womatshini wokukhupha, izikrufu, kunye nezinto ezinyibilikisiweyo ezihamba kwisikhunta sokubumba esisetyenziselwa ukuvelisa i-resin ye-CPVC kufuneka zinyangwe ngonyango lokulwa nokugqwala ukuze zandise ubomi benkonzo yezixhobo.
Kwinkqubo yokwenyani yemveliso, inkqubo yokubumba i-extrusion ye-polyvinyl chloride ene-chlorine isanzima kakhulu. Kakade ke, kubalulekile ukukhetha imveliso efanelekileyo xa uyisebenzisa kwiimeko ezithile, kwaye kufuneka siqwalasele ngononophelo umthamo wemveliso ukuze kube lula ukuyisebenzisa ngempumelelo.
Ixesha lokuthumela: Novemba-16-2023
