Abakhiqizi be-coating bathi izindwangu ezincibilika emanzini zibhekisela ezingxenyeni ezilungiselelwe kusuka ku-emulsion njengezinto zokwakha ifilimu, lapho ama-resin asekelwe ku-solvent encibilika ku-solvents ye-organic, bese, ngosizo lwama-emulsifiers, ama-resin ahlakazwa emanzini ngomshini onamandla. ukugqugquzela ukwakha ama-emulsions , okuthiwa i-post-emulsion, ingahlanjululwa ngamanzi ngesikhathi sokwakhiwa.
Upende olungiselelwe ngokungeza inani elincane le-emulsion ku-resin encibilikayo emanzini alikwazi ukubizwa ngokuthi upende we-latex. Ukukhuluma ngokuqinile, upende onciphisa amanzi awukwazi ukubizwa ngokuthi upende we-latex, kodwa futhi uhlukaniswa njengopende we-latex ngokomthetho.
Izinzuzo kanye nokubi kwezingubo ezisekelwe emanzini
1. Ukusebenzisa amanzi njengesincibilikisi konga izinsiza eziningi. Izingozi zomlilo ngesikhathi sokwakha ziyagwenywa futhi ukungcoliswa komoya kuyancishiswa. Kusetshenziswa inani elincane kuphela le-alcohol ether organic solvent encane enobuthi obuncane, okuthuthukisa izimo zemvelo yokusebenza.
2. I-solvent ye-organic kapende osekelwe emanzini ojwayelekile iphakathi kuka-10% no-15%, kodwa upende wamanje we-cathodic electrophoretic wehliswe waba ngaphansi kuka-1.2%, okunomthelela osobala ekunciphiseni ukungcola nokulondoloza izinsiza.
3. Ukuzinza kokuhlakazeka kumandla aqinile wemishini kubi kakhulu. Lapho ijubane lokugeleza epayipini elidluliselayo lihluka kakhulu, izinhlayiya ezihlakazekile zicindezelwa zibe yizinhlayiya eziqinile, okuzobangela ukugoba kwefilimu enamathelayo. Kudingeka ukuthi ipayipi elidlulisayo libe sesimweni esihle futhi udonga lwamapayipi lungenasici.
4. Igqwala kakhulu emishinini yokumboza. Kudingeka ulayini olungagqwali noma izinto zensimbi engagqwali, futhi izindleko zezisetshenziswa ziphezulu uma kuqhathaniswa. Ukugqwala nokuhlakazeka kwensimbi kwepayipi elidlulisayo kungabangela imvula kanye nokubhoboza izinhlayiya ezihlakazekile efilimini enamathelayo, ngakho kusetshenziswa amapayipi ensimbi engagqwali nawo.
Ukuqeda isicelo kanye nendlela yokwakha yabakhiqizi bepende
1. Lungisa upende ku-viscosity ye-spray efanelekile ngamanzi ahlanzekile, futhi ulinganise i-viscosity nge-viscometer ye-Tu-4. I-viscosity efanelekile imvamisa imizuzwana emi-2 ukuya kwengama-30. Umkhiqizi wepende uthe uma ingekho i-viscometer, ungasebenzisa indlela ebonakalayo ukuze uvuselele upende ngensimbi yensimbi, uqhubezele ekuphakameni okungama-20 cm bese umisa ukuze ubuke.
2. Umfutho womoya kufanele ulawulwe ku-0.3-0.4 MPa naku-3-4 kgf/cm2. Uma ingcindezi iphansi kakhulu, upende ngeke u-atomize kahle futhi ubuso buzogotshwa. Uma ingcindezi inkulu kakhulu, kulula ukucwila, futhi inkungu kapende inkulu kakhulu ukuthi ingamosha izinto futhi ithinte impilo yabasebenzi bokwakha.
3. Ibanga phakathi kombhobho nobuso bento buyi-300-400 mm, futhi kulula ukucwilisa uma iseduze kakhulu. Uma ikude kakhulu, inkungu kapende izobe ingalingani futhi kuzoba nomgodi. Futhi uma umlomo wombhobho ukude nobuso bento, inkungu kapende izosabalala endleleni, ibangele imfucuza. Umkhiqizi wepende uthe ibanga elithile linganqunywa ngokuya ngohlobo lopende, i-viscosity kanye nomfutho womoya.
4. Isibhamu sokufutha singahamba siye phezulu naphansi, kwesokunxele nakwesokudla, futhi singagijima ngokulinganayo ngesivinini esingu-10-12 m/min. Kufanele iqonde futhi ibheke ngqo ebusweni bento. Lapho ufutha ezinhlangothini zombili zobuso bento, isandla esidonsa isibhamu sesibhamu kufanele sikhishwe ngokushesha. Vuliwe, lokhu kuzonciphisa inkungu kapende.
Isikhathi sokuthumela: Jan-18-2024