Izizathu zokuvela kwama-bubbles ngesikhathi sokuxuba:
Isizathu sokuthi kungani kukhiqizwa amabhamuza ngesikhathi senqubo yokuxubai-epoxy resiniglue ukuthi igesi elethwa ngesikhathi senqubo yokuxuba ikhiqiza amabhamuza. Esinye isizathu "umphumela wokugaya" obangelwa uketshezi oluxutshwa ngokushesha kakhulu. Kunezinhlobo ezimbili zamabhamuza: abonakalayo nangabonakali. Ukusebenzisa i-vacuum degassing kungasusa amabhamuza abonakalayo kuphela, kodwa akusebenzi ekususeni amabhamuza amancane angabonakali emehlweni omuntu.
Izizathu zokuvela kwama-bubbles ngesikhathi sokwelashwa:
Lokhu kungenxa yokuthi i-epoxy resin ilashwa yi-polymerization, okuyi-chemical reaction. Ngesikhathi sokusabela kokwelapha, amabhamuza amancane ohlelweni lwe-epoxy resin ayashisa futhi anwebeke, futhi igesi ayisahambisani nohlelo lwe-epoxy, bese ihlangana ndawonye ukuze ikhiqize amabhamuza amakhulu.
Izimbangela zokuqhuma kwe-epoxy resin:
(1) Izakhiwo zamakhemikhali ezingazinzile
(2) Ukuxuba lapho kulungiswa isithambisi
(3) Ukukhipha igwebu ngemva kokuqoqwa kwe-thickener
(4) Inqubo yokukhipha udaka
Izingozi zokuqhuma kwe-epoxy resin ngesikhathi sokuxuba:
(1) Igwebu libangela ukugcwala kanye nokusetshenziswa kokuqina, okuzothinta nokuphakama kwezinga loketshezi olubonwayo.
(2) Amabhamuza abangelwa ama-molecule amine e-ejenti yokwelapha azothinta ukusebenza kahle kokwakhiwa.
(3) Ukuba khona “kwamabhamuza amanzi” kuzobangela i-VCM gas phase polymerization, evame ukukhiqizwa eketheni elinamathelayo.
(4) Uma amabhamuza engasuswa ngokuphelele ngesikhathi sokwakhiwa, amabhamuza azokhiqizwa ngemva kokuqina, futhi kuzoba nezimbobo eziningi ebusweni ngemva kokomiswa, okuzothinta kakhulu ikhwalithi yomkhiqizo.
Indlela yokususa amabhamuza omoya?
Izigaba zemikhiqizo yama-ejenti okuhlanza amazinyo asetshenziswa kakhulu: ama-ejenti okuhlanza amazinyo e-silicone, ama-ejenti okuhlanza amazinyo angewona ama-silicone, ama-ejenti okuhlanza amazinyo e-polyether, ama-ejenti okuhlanza amafutha amaminerali, ama-ejenti okuhlanza utshwala obune-carbon ephezulu, njll.
Uma izinga lokushisa liphansi, izici zezinto eziningi eziwuketshezi zizoshintsha, ikakhulukazi i-viscosity yezinto ezinamathelayo eziwuketshezi izokwanda njengoba izinga lokushisa lehla.Iglue ye-epoxy resin ab, njengento ejwayelekile yoketshezi, inokwenyuka okukhulu kwenani le-viscosity ngenxa yokwehla kwezinga lokushisa. Ngakho-ke, ngesikhathi sokusetshenziswa nokusetshenziswa, amabhamuza kunzima ukuwasusa, ukusebenza kokuthamba kuyancishiswa, futhi ukwanda kwesikhathi sokusetshenziswa nesikhathi sokupholisa akuhambisani nokukhiqizwa nokulawulwa okuvamile. Kodwa-ke, ngokuqongelela iminyaka eminingi yesipiliyoni sokukhiqiza, sifingqe ulwazi oluthile oluwusizo lokuxazulula ngempumelelo nokunciphisa izinkinga ezibangelwa yizinkinga ezingenhla. Ngokukhethekile, kunezindlela ezine ezilandelayo:
1. Indlela yokushisa indawo yomsebenzi:
Uma izinga lokushisa endaweni yokusebenza lehla laya ku-25°C, kudingeka ukushisa okusebenzayo kwendawo yokusebenza ukuze kukhushulwe izinga lokushisa libe yizinga lokushisa elifanele ukusetshenziswa kweglue (25°C ~ 30°C). Ngesikhathi esifanayo, umswakama womoya ohlobene endaweni yokusebenza kufanele ugcinwe ku-70% noma ngaphezulu, kuze kube yilapho izinga lokushisa leglue ngokwalo lifana nezinga lokushisa elizungezile ngaphambi kokuba iglue isebenze futhi isetshenziswe kahle.
Isikhumbuzo Esifudumele: Le ndlela iyindlela ephumelela kakhulu, kodwa izindleko zokusebenza zizoba phezulu kakhulu, sicela unake ukubalwa kwezindleko.
2. Indlela yokufudumeza amanzi abilayo:
Ukupholisa kuzonciphisa ngqo inani le-viscosityi-epoxy resinukunamathisela i-ab bese uyikhulisa kakhulu. Ukuyifudumeza kusenesikhathi ngaphambi kokusebenzisa i-glue kuzokhulisa izinga lokushisa layo futhi kwehlise inani le-viscosity, okwenza kube lula ukuyisebenzisa. Indlela ethile ukufaka yonke i-barrel noma ibhodlela le-glue emanzini abilayo bese uyifudumeza cishe amahora ama-2 ngaphambi kokusebenzisa i-glue, ukuze izinga lokushisa le-glue lifinyelele cishe ku-30℃, bese uyikhipha, uyishukumise kabili, bese ugcina i-glue engu-A ezingeni lokushisa elingaphansi kuka-30℃ emanzini afudumele bese uyisebenzisa ngenkathi ufudumeza. Ngesikhathi sokuyisebenzisa, khipha i-glue bese uyishukumisa njalo ngesigamu sehora ukuze ugcine izinga lokushisa nokwakheka kwe-glue kuhambisana ngokulinganayo. Kodwa qaphela kakhulu ukuthi ungavumeli i-glue ebhakedeni noma ebhodleleni inamathele emanzini, ngaphandle kwalokho kuzoholela emiphumeleni emibi noma emibi kakhulu.
Isikhumbuzo Esifudumele: Le ndlela ilula, iyonga futhi iyasebenza, futhi izindleko nezinto zokwakha kulula kakhulu. Kodwa-ke, kunezingozi ezifihliwe, okufanele ziqashelwe.
3. Indlela yokushisa ihhavini:
Abasebenzisi abanezimo bangasebenzisa i-epoxy resin ab ukushisa i-glue kuhhavini ngaphambi kokusebenzisa i-glue ukugwema ukuthintana namanzi ngengozi. Kulula kakhulu. Indlela ethile ukulungisa izinga lokushisa kuhhavini libe ngu-60°C, bese ufaka yonke i-barrel noma ibhodlela le-glue kuhhavini ukuze uyifudumale kusengaphambili, ukuze izinga lokushisa le-glue uqobo lifinyelele ku-30°C, bese ukhipha i-glue uyinyakazise kabili, bese ubeka i-glue ekushiseni kwe-. Lungisa ku-30°C phakathi kwehhavini usebenzisa imiphetho eshisiwe, kodwa qaphela ukuthi ukhipha i-glue bese uyinyakazisa cishe ihora ukuze i-glue ihlale igcina izinga lokushisa elilinganayo nezithako.
Isikhumbuzo Esifudumele: Le ndlela izokwandisa izindleko kancane, kodwa ilula futhi iyasebenza.
4. Indlela yokusiza nge-ejenti yokuhlanza:
Ukuze usheshise ukususwa kwamabhamuza ngokulinganisela, ungathenga futhi i-ejenti ekhethekile yokususa amafoam ye-epoxy resin ab-added glue, bese ufaka i-glue engu-A enesilinganiso esingu-3‰ ngaphakathi, indlela ethile; ungangezi ngokuqondile ngaphezu kuka-3% we-glue ku-glue engu-A eshisiswe yindlela engenhla. I-ejenti ekhethekile yokususa amafoam ye-i-epoxy resin AB glue, bese uvuselela ngokulinganayo bese uxuba neglue ye-B ukuze uyisebenzise.
I-Shanghai Orisen New Material Technology Co., Ltd
M: +86 18683776368 (futhi ku-whatsapp)
Ucingo:+86 08383990499
Email: grahamjin@jhcomposites.com
Ikheli: NO.398 New Green Road Xinbang Town Songjiang District, eShanghai
Isikhathi sokuthunyelwe: Jan-07-2025