Izizathu zamabhamuza ngesikhathi sokugubha:
Isizathu sokuthi kungani ama-bubbles akhiqizwa phakathi nenqubo yokuxubai-epoxy resini-glue iwukuthi igesi eyethulwa phakathi nenqubo yokunyakazisa ikhiqiza amabhamuza. Esinye isizathu "umphumela we-cavitation" obangelwa uketshezi olunyakaziswa ngokushesha kakhulu. Kunezinhlobo ezimbili zamabhamuza: ezibonakalayo nezingabonakali. Ukusebenzisa i-vacuum degassing kungaqeda amabhamuza abonakalayo kuphela, kodwa akuphumeleli ekukhipheni amabhamuza amancane angabonakali ngeso lomuntu.
Izizathu zama-bubbles ngesikhathi sokwelashwa:
Lokhu kungenxa yokuthi i-epoxy resin yelapheka nge-polymerization, okuwukusabela kwamakhemikhali. Ngesikhathi sokwelashwa, amabhamuza amancane ohlelweni lwe-epoxy resin ashisa futhi anda, futhi igesi ayisahambisani nesistimu ye-epoxy, bese iqoqana ndawonye ukuze ikhiqize amabhamuza amakhulu.
Izimbangela zokuqubuka kwe-epoxy resin:
(1) Amakhemikhali angazinzile
(2) Ukuxuba lapho ulungiselela ukuqina
(3) Ukukhihliza amagwebu ngemva kokuqoqwa kwe-thickener
(4) Inqubo yokukhishwa kwe-slurry
Izingozi zokuphuma kwe-epoxy resin ngesikhathi sokuxuba:
(1) Igwebu libangela ukuchichima kanye nokusetshenziswa kokuqina, okuzophinde kuthinte ukuphakama kwezinga loketshezi olubonwayo.
(2) Amabhamuza abangelwe ukulapha ama-amine amamolekyuli azothinta ukusebenza kahle kokwakhiwa.
(3) Ukuba khona “kwamabhamuza amanzi” kuzodala i-VCM igesi yesigaba se-polymerization, evame ukukhiqizwa kugedlela lokunamathela.
(4) Uma amabhamuza engasuswanga ngokuphelele ngesikhathi sokwakhiwa, amabhamuza azokhiqizwa ngemva kokuphulukiswa, futhi kuzoba nezimbobo eziningi ebusweni ngemva kokoma, okuzothinta kakhulu ikhwalithi yomkhiqizo.
Indlela yokuqeda ama-bubbles emoyeni?
Izigaba zomkhiqizo we-ejenti yokukhipha amagwebu ezisetshenziswa kakhulu: ama-ejenti akhipha ugwebu e-silicone, ama-non-silicon defoaming agents, ama-polyether defoaming agents, ama-mineral oil defoaming agents, i-high-carbon alcohol defoaming agents, njll.
Lapho izinga lokushisa liphansi, izici zezinto eziningi eziwuketshezi Izinguquko zizokwenzeka, ikakhulukazi i-viscosity yezinto ezinamathelayo eziqinile zizokhula njengoba izinga lokushisa liyancipha.I-Epoxy resin ab glue, njengento evamile yoketshezi, inokwanda okuphawulekayo kwenani le-viscosity ngenxa yokwehla kwezinga lokushisa. Ngakho-ke, ngesikhathi sokusetshenziswa nokusetshenziswa, ama-bubbles anzima ukuqeda, ukusebenza okuphansi kuyancishiswa, futhi ukwanda kwesikhathi sokusetshenziswa kanye nesikhathi sokuphulukisa akusizi ekukhiqizeni nokulawula okujwayelekile. Kodwa-ke, ngokuqoqwa kweminyaka eminingi yokuhlangenwe nakho kokukhiqiza, sifinyeze ulwazi oluthile oluwusizo ukuze sixazulule ngempumelelo futhi sinciphise izinkinga ezibangelwa izinkinga ezingenhla. Ngokuqondile, kunezindlela ezine ezilandelayo:
1. Indlela yokushisisa indawo yomsebenzi:
Lapho izinga lokushisa endaweni yomsebenzi lehla laya ku-25°C, ukushisisa okusebenzayo kwendawo yomsebenzi kuyadingeka ukuze kukhuphule izinga lokushisa libe ezingeni lokushisa elifanele ukusebenza kweglue (25°C~30°C). Ngesikhathi esifanayo, umswakama womoya ohlobene endaweni yomsebenzi kufanele ugcinwe ku-70%. noma kunjalo, kuze kube yilapho izinga lokushisa leglue ngokwayo lilingana nezinga lokushisa elizungezile ngaphambi kokuba ingcina isebenze futhi isetshenziswe ngendlela efanele.
Isikhumbuzi esifudumele: Le ndlela iyindlela ephumelela kakhulu, kodwa izindleko zokusebenza zizoba phezulu kakhulu, sicela unake ukubalwa kwezindleko.
2. Indlela yokushisisa amanzi abilayo:
Ukupholisa kuzonciphisa ngokuqondile inani le-viscosityi-epoxy resinab glue futhi uyandise kakhulu. Ukuyishisa kusengaphambili ngaphambi kokusebenzisa iglue kuzokwandisa izinga lokushisa layo futhi kunciphise inani le-viscosity, okwenza kube lula ukuyisebenzisa. Indlela ethize ukufaka wonke umgqomo noma ibhodlela leglue emanzini abilayo bese uyishisisa cishe amahora ama-2 ngaphambi kokusebenzisa ingcina, ukuze izinga lokushisa leglue lifinyelele cishe ku-30 ℃, bese uyikhipha, uyinyakazise kabili, bese ugcine iglue A ekushiseni okungengaphansi kuka-30 ℃ emanzini afudumele futhi usebenzise ngenkathi ufudumeza. Ngesikhathi sokusebenzisa, khipha ingcina bese uyinyakazisa njalo ngesigamu sehora ukuze ugcine izinga lokushisa nokwakheka kweglue symmetrical. Kodwa qaphela ngokukhethekile ukuthi ungavumeli ingcina ebhakedeni noma ebhodleleni inamathele emanzini, ngaphandle kwalokho izoholela emiphumeleni emibi noma engathi sína.
Isikhumbuzi esifudumele: Le ndlela ilula, iyonga futhi iyasebenza, futhi izindleko nezinto zokwakha kulula. Nokho, zikhona izingozi ezicashile, okufanele zinakwe.
3. Indlela yokushisisa ihhavini:
Abasebenzisi abanezimo bangasebenzisa i-epoxy resin ab ukushisa ingcina kuhhavini ngaphambi kokusebenzisa iglu ukuze bagweme ukuthintana namanzi ngephutha. Kulula kakhulu. Indlela ethize ukulungisa izinga lokushisa kuhhavini libe ngu-60 ° C, bese ufaka wonke umgqomo noma ibhodlela le-A glue kuhhavini ukuze ushise, ukuze izinga lokushisa le-glue ngokwayo lifinyelele ku-30 ° C, bese ukhipha ingcina bese uyinyakazisa kabili, bese ubeka iglue ekushiseni kwe-Lungiselela ku-30 ° C phakathi kuhhavini usebenzisa i-glue eshisayo, kodwa qaphela ukuyikhipha i-glue kuze kube yihora. njalo igcina izinga lokushisa elilinganayo nezithako
Isikhumbuzi esifudumele: Le ndlela izophinda inyuse izindleko kancane, kodwa ilula futhi iyasebenza.
4. Indlela yokusiza ye-ejenti yokukhipha amagwebu:
Ukuze kusheshiswe ngokusesilinganisweni ukususwa Bubbles, ungakwazi futhi ukuthenga ejenti defoaming ekhethekile epoxy resin ab-added glue, bese wengeza A glue nge isilinganiso 3‰ ngaphakathi, indlela ethize; ungeze ngokuqondile u-3% weglue ku-glu A eshisisa ngale ndlela engenhla. I-ejenti ekhethekile yokukhipha amagwebu yei-epoxy resin AB glue, bese ugoqa ngokulinganayo bese uxuba ne-B glue ukuze uyisebenzise.
I-Shanghai Orisen New Material Technology Co., Ltd
M: +86 18683776368(futhi whatsapp)
T: +86 08383990499
Email: grahamjin@jhcomposites.com
Ikheli: NO.398 New Green Road Xinbang Town Songjiang District,Shanghai
Isikhathi sokuthumela: Jan-07-2025