Izizathu zama-bubble ngesikhathi kuvusa:
Isizathu esenza ama-bubble akhiqizwa ngesikhathi senqubo yokuxuba yei-epoxy resinglue ukuthi igesi elethulwe ngesikhathi senqubo evusa ama-bubble ikhiqiza ama-bubble. Esinye isizathu "Umphumela we-Cavitation" obangelwa uketshezi olushukunyiswa ngokushesha okukhulu. Kunezinhlobo ezimbili zama-bubble: abonakala futhi angabonakali. Usebenzisa i-vacuum degassing ungasusa ama-bubble abonakalayo kuphela, kepha akuphumelelanga ekususeni ama-bubble amancane angabonakali ngamehlo somuntu.
Izizathu zama-bubble ngesikhathi sokwelapha:
Lokhu kungenxa yokuthi i-epoxy resin yelashwa yi-polymerization, okungukusabela kwamakhemikhali. Ngesikhathi sokulahla ukusabela, ama-bubble amancane ku-epoxy resin system ukushisa futhi anwebe, futhi igesi ayisahambelana nohlelo lwe-epoxy, bese libuthana ndawonye ukukhiqiza ama-bubble amakhulu.
Izimbangela ze-Epoxy Resin Foaming:
(1) Izakhiwo zamakhemikhali ezingazivaleli
(2) ukuxuba lapho kulungiswa umkhulu
(3) Foaming ngemuva kokuqoqwa okukhulu
(4) Inqubo yokuphuma kweSlurry
Izingozi ze-epoxy resin foaming ngesikhathi sokuxuba:
(1) I-Foam ibangela ukusetshenziswa okuchichimayo nokuchichima, okuzothinta nokuphakama kwezinga elibonwayo.
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(4) Uma ama-bubble engasuswa ngokuphelele ngesikhathi sokwakha, kuzokwenziwa ama-bubble ngemuva kokuphulukisa, futhi kuzoba nama-pinholes amaningi ebusweni ngemuva kokomiswa, okuzothinta kakhulu ikhwalithi yomkhiqizo.
Ungakuqeda Kanjani Ama-Bubble Air?
Izigaba zomkhiqizo we-ejenti we-ejenti evame ukungcolisa: ama-silicone defoauming agents, ama-agents angewona ama-silicon, ama-polythert decouming agents, ama-ejenti amaminerali angu-ejenti, asebenzeli be-carbon anodol defences, njll.
Lapho amazinga okushisa ephansi, izici zezinguquko eziningi zoketshezi zizoshintsha, ikakhulukazi i-viscosity yezinto ezinama-anama ezinamanzi zizokwanda njengoba izinga lokushisa liyancipha.I-epoxy resin glue, njengento ejwayelekile yoketshezi, unokwanda okukhulu kwenani le-viscosity ngenxa yokuncipha kwezinga lokushisa. Ngakho-ke, ngesikhathi sokusebenzisa nokusebenzisa, ama-bubble kunzima ukuwasusa, ukusebenza kwe-flattening kuncishisiwe, futhi ukwanda kwesikhathi sokusebenzisa nesikhathi sokulashwa akusilungele ukukhiqizwa nokulawulwa okujwayelekile. Kodwa-ke, ngokuqongelelwa kweminyaka eminingi yesipiliyoni sokukhiqiza, sifingqe isipiliyoni esithile esiwusizo sokuxazulula ngempumelelo nokunciphisa izinkinga ezibangelwa yizinkinga ezingenhla. Ngokuqondile, kunezindlela ezine ezilandelayo:
1. Indlela yokushisa yendawo yomsebenzi:
Lapho amazinga okushisa endaweni yomsebenzi ehla afinyelela ku-25 ° C, ukufudumala okusebenzayo kwesayithi lomsebenzi kuyadingeka ukukhulisa izinga lokushisa liye ekushiseni okulungele ukusebenza nge-glue (25 ° C ~ 30 ° C). Ngasikhathi sinye, umswakama womoya ohlobene esizeni somsebenzi kufanele ugcinwe ngo-70%. Noma kunjalo, kuze kube yilapho amazinga okushisa e-glue ngokwawo ngokwawo afana nokushisa okukhona ngaphambi kwe-glue angasebenza futhi asetshenziswe kahle.
Isikhumbuzi Esifudumele: Le ndlela iyindlela ephumelela kunazo zonke, kepha izindleko zokusebenza zizoba ziphakeme kakhulu, sicela unake izindleko zemali.
2. Indlela yokubila yokushisa kwamanzi ebilayo:
Ukupholisa kuzonciphisa ngqo inani le-viscosity yei-epoxy resinglue i-ab futhi wayikhulisa kakhulu. Ukushisa kusengaphambili ngaphambi kokusebenzisa i-glue kuzokhulisa amazinga okushisa alo futhi kunciphise inani le-viscosity, okwenza kube lula ukulisebenzisa. Indlela ethile yokufaka yonke imigqomo noma ibhodlela le-glue libe ngamanzi abilayo futhi liyishise cishe amahora amabili ngaphambi kokusebenzisa cishe i-glue, bese uyikhipha kabili, bese uyikhipha kabili, bese uyikhipha I-glue emazingeni okushisa angaphansi kwama-30 ℃ emanzini afudumele nokusebenzisa ngenkathi ushisa. Ngesikhathi sokusebenzisa, khipha i-glue futhi uyinyakaze njalo ngesigamu sehora ukugcina izinga lokushisa nokwakheka kwe-glue symmetrical. Kepha qaphela ikakhulukazi ukuthi ungavumeli i-glue ebhakedeni noma ibhodlela enamathela emanzini, ngaphandle kwalokho kuzoholela emiphumeleni emibi noma emibi.
Isikhumbuzi esifudumele: Le ndlela ilula, inomnotho futhi iyasebenza, futhi izindleko nezinto zokwakha zilula. Kodwa-ke, kunezingozi ezifihliwe, okufanele zinake.
3. Indlela yokushisa kuhhavini:
Abasebenzisi abanemibandela bangasebenzisa i-epoxy resin ab ukushisa i-glue a kuhhavini ngaphambi kokusebenzisa ukuxhumana ngephutha ngamanzi. Kulula kakhulu. Indlela ethile ukuguqula izinga lokushisa le-oven libe ngu-60 ° C, bese ubeka yonke imigqomo noma ibhodlela le-glue ungene kuhhavini ufike ku-30 ° CE, bese ukhipha i-glue bese unikina kabili, bese ubeka i-glue emazingeni okushisa afinyelela ku-30 ° C phakathi kwehhavini usebenzisa ihora ukuze i-glue ihlale icoca ngokulinganayo izinga lokushisa elinezithako.
Isikhumbuzi Esifudumele: Le ndlela izophinde yandise izindleko kancane, kepha ilula futhi iyasebenza.
4. Indlela yokusiza ye-ejenti ye-ejenti:
Ukuze usheshise ukususwa kwama-bubble, ungathenga ne-ejenti ekhethekile ye-desoauming ye-epoxy resin i-ab-engeza i-ab-ex-exnged glue, bese wengeza i-glue ngesilinganiso esingu-3 ‰ ngaphakathi, indlela ethile; Ngeza ngokuqondile u-3% we-glue kwi-glue efudunyezwe yindlela engenhla. Umenzeli okhethekile we-decouming fori-epoxy resin glue, bese uvuza ngokulinganayo bese uxuba ne-B glue ukuze uyisebenzise.
I-Shanghai Orisen New Materiech Technology Co, Ltd
M: +86 18683776368 (Futhi WhatsApp)
T: +86 08383999999999
Email: grahamjin@jhcomposites.com
Ikheli: Cha.398 New Green Road Xinbang Town Songjiang District, Shanghai
Isikhathi sePosi: Jan-07-2025