Umshini wokubumba umjovo (umshini wokubumba umjovo noma umshini wokubumba umjovo ngamafuphi) umshini wokubumba oyinhloko owenza i-thermoplastic noma i-thermosetting ibe yimikhiqizo yepulasitiki yobujamo obuhlukahlukene isebenzisa isikhunta sokubumba sepulasitiki.Ukubumba umjovo kwenziwa ngemishini yokubumba umjovo kanye nesikhunta.
Nazi ezinye izinqubo zokubumba umjovo ezithinta amandla ezingxenye ezibunjwe ngomjovo:
1. Ukwenyusa ingcindezi yomjovo kungathuthukisa amandla okuqina weIzingxenye ezibunjiwe ngomjovo we-PP
Izinto ze-PP zinwebeka kakhulu kunezinye izinto zenjoloba eqinile, ngakho-ke ukuminyana kwezingxenye ezibunjwe ngomjovo kuzokhula ngokunyuka kwengcindezi, okusobala ngokuqhathaniswa.Lapho ukuminyana kwezingxenye zepulasitiki kukhula, amandla ayo aqinile azokhula ngokwemvelo, futhi ngokuphambene nalokho.
Kodwa-ke, lapho ukuminyana kukhushulwa kwinani eliphakeme kakhulu elingafinyelelwa yi-PP ngokwayo, amandla okuqina ngeke aqhubeke nokukhula uma ingcindezi ikhuphuka, kodwa izokwandisa ukucindezeleka kwangaphakathi okusalayo kwezingxenye ezibunjiwe zomjovo, okwenza izingxenye ezibunjiwe zomjovo zibe brittle. , ngakho kufanele iyekwe.
Ezinye izinto zokwakha zinezimo ezifanayo, kodwa izinga elisobala lizohluka.
2. Umjovo kawoyela wokudlulisa ukushisa kwesikhunta ungathuthukisa amandla ezingxenye zeSaigang nezingxenye zenayiloni
Izinto zenayiloni neze-POM ziyipulasitiki ecwebezelayo.Isikhunta sijova ngamafutha ashisayo athuthwa umshini kawoyela oshisayo, onganciphisa izinga lokupholisa lezingxenye ezibunjiwe zomjovo futhi uthuthukise ubucwebe bepulasitiki.Ngesikhathi esifanayo, ngenxa yezinga lokupholisa kancane, ukucindezeleka kwangaphakathi okusele kwezingxenye ezibunjiwe zomjovo nakho kuyancishiswa.Ngakho-ke, ukumelana komthelela namandla okuqina we-inayiloni kanye nezingxenye ze-POMejovwe ngenjini yamafutha ashisayo uwoyela wokudlulisa ukushisa izothuthukiswa ngokufanele.
Kufanele kuqashelwe ukuthi izilinganiso zenayiloni kanye nezingxenye ze-POM ezibunjwe ngamafutha ashisayo athuthwa umshini wamafutha ashisayo zihluke kancane kulokho okubunjwe ngamanzi athuthwayo, futhi izingxenye zenayiloni zingase zibe zinkulu.
3. Isivinini sokuncibilika siyashesha kakhulu, noma ngabe i-180 ℃ isetshenziselwa ukubumba umjovo, ingcina izoba luhlaza.
Ngokuvamile, impahla ye-PVC engu-90 degree ijovwa ku-180 ℃, futhi izinga lokushisa lanele, ngakho inkinga yenjoloba eluhlaza ngokuvamile ayenzeki.Kodwa-ke, ngokuvamile kungenxa yezizathu ezingadonseli ukunaka komqhubi, noma ukusheshisa ngamabomu isivinini sokuncibilika kweglue ukuze kusheshiswe ukukhiqizwa, ukuze isikulufu sihlehle ngokushesha okukhulu.Isibonelo, kuthatha imizuzwana emibili noma emithathu kuphela ukuthi isikulufu sihlehle sibe ngaphezu kwesigamu senani eliphezulu lokuncibilika kweglue.Isikhathi sokushiswa nokunyakaziswa kwempahla ye-PVC asanele, okuholela enkingeni yokushisa kwe-glue encibilikayo engalingani kanye nokuxuba kwenjoloba eluhlaza, Amandla nokuqina kwezingxenye ezibunjiwe zomjovo kuzoba mpofu kakhulu.
Ngakho-ke, niniukujova izinto ze-PVC, kufanele uqaphele ukuthi ungalungiseleli ngokunganaki isivinini se-adhesive encibilikayo ibe ngaphezu kuka-100 rpm.Uma kufanele ilungiswe ngokushesha okukhulu, khumbula ukuphakamisa izinga lokushisa lempahla ngo-5 kuye ku-10 ℃, noma ukhuphule ukucindezela kwangemuva kokunamathelayo okuncibilikisa ngokufanelekile ukuze ubambisane.Ngesikhathi esifanayo, qaphela ukuhlola njalo ukuthi ingabe kukhona inkinga ngenjoloba eluhlaza, ngaphandle kwalokho kungenzeka ukuthi kubangele ukulahlekelwa okukhulu.
Isikhathi sokuthumela: Nov-11-2022