Ukuhlaziywa kwe-PVC Glue Molding Process and Application Technology

Aug 25, 2025

Shiya umlayezo

Iglue ye-PVC (i-polyvinyl chloride), njengento enamathelayo ebalulekile yokuhlanganisa izinto ze-PVC, isetshenziswa kakhulu ekucubunguleni umkhiqizo wepulasitiki, ukuhlobisa kwezakhiwo, kanye nokukhiqizwa kwezimboni. Inqubo yayo yokubumba ithinta ngokuqondile amandla ebhondi, ukuqina, kanye nekhwalithi yomkhiqizo oqediwe, edinga ukulawulwa okuqinile kwamapharamitha nezinqubo zokusebenza esigabeni ngasinye.

 

Inqubo yokubumba iglue ye-PVC ngokuyinhloko inezigaba ezine: ukwelashwa okungaphezulu, ukunamathisela, ukubopha, nokuphulukisa. Okokuqala, ukwelashwa kwe-substrate surface kuyisinyathelo esibalulekile. Njengoba izindawo ezingaphezulu ze-PVC zivame ukuqukatha izinto ezikhululayo noma izendlalelo ze-oxide, ukungcola kufanele kususwe ngokusebenzisa isihlabathi, ukuhlanzwa, noma ukusula i-solvent ukuze kuqinisekiswe ubulukhuni obumaphakathi bokunamathela okunamathelayo okuthuthukisiwe. Okwesibili, inqubo yokunamathisela idinga ukulungiswa enanini nendlela yokufaka okusekelwe ohlotsheni lweglue (isb., ukuncibilika-okususelwe, amanzi-okususelwe, noma{7}}ukoma{7}}okusheshayo). Iglue ye-PVC encibilikisiwe{{9}esekelwe ngokujwayelekile idinga umcibisholo omncane, ohlanganisayo ukugwema{10}}uhlelo lokusebenza, olungaholela ekuchichimeni kweglue noma ukuncipha. Iglue{12}esekelwe emanzini idinga ukuswakama okulawulwayo ukuze kuvinjelwe umswakama ukuthi ungaphazamisi inqubo yokwelapha. Ngemuva kokufaka isicelo, i-glue kufanele ishiywe emoyeni isikhathi esifushane (imvamisa imizuzwana engama-30 kuya kwemizuzu emi-2) ukuvumela i-solvent ihwamuke ibe yi-viscosity efanelekile ngaphambi kokubopha.

Isiteji sokubopha sidinga ukuqondanisa okunembile nokucindezela. Inani nobude besikhathi sokucindezela kuyahlukahluka kuye ngokujiya kwezinto, kodwa ngokuvamile kugcinwa ku-0.1–0.5 MPa imizuzu engu-1-5 ukuze kuqinisekiswe ukuthintana kwamangqamuzana okwanele. Kamuva, isigaba sokuphulukisa siqala. Okunamatheliswayo okuncibilikisiwe{7}kuncike ekuhwamukeni kwe-solvent kanye nokuphambana kokusabalalisa kwamaketango e-PVC. Ezingeni lokushisa lasekamelweni, zidinga amahora ambalwa ukuze zifinyelele amandla okuqala nangaphezulu kwamahora angu-24 ukuze zelaphe ngokugcwele. Ukwelapha ukushisa (njengokubhaka ku-60-80 degree) kunganciphisa kakhulu lesi sikhathi kumaminithi angu-30. Okunamatheliswayo kwe-PVC{15}}okomisa ngokushesha kuxhumanisa ngokushesha ngenxa yokusabela komswakama, kuzuza amandla okusebenza phakathi namaminithi.

Ukuthuthukisa inqubo kudinga ukulungisa amapharamitha ngokusekelwe kuzimo ezithile. Isibonelo, ezindaweni eziphakeme-zezinga lokushisa eliphezulu, into enamathelayo engazweli ukushisa iyanconywa ukuze kuthuthukiswe ukulungiswa kokuqala. Uma ubopha izinto eziwugqinsi{4}}ezinezindonga, ukufaka izingqimba kuyanconywa ukuze kuncishiswe amabhamuza omoya. Ngaphezu kwalokho, izidingo zokuvikelwa kwemvelo ziqhuba ukuthuthukiswa kwezinamatheliso ze-PVC ezisekelwe emanzini,{6}ezinezici zazo eziphansi ze-VOC (i-volatile organic compound) eziqondana kangcono nezindlela zesimanje zokukhiqiza.

Kafushane, inqubo yokubumba iglue ye-PVC idinga ukulawulwa okuhlelekile kokwelashwa kwendawo, ubuchwepheshe bokumboza nezimo zokuphulukisa, kanye nokuphathwa kwesayensi ukuze kuzuzwe imiphumela esebenza kahle nethembekile yokubopha, ngaleyo ndlela iqinisekise ikhwalithi nokuqina kwemikhiqizo ye-PVC.