Abakhiqizi bezingubo zokumboza bathi izingubo zokumboza ezincibilikiswa ngamanzi zibhekisela ezimbozweni ezilungiselelwe ngama-emulsion njengezinto zokwakha ifilimu, lapho ama-resin asekelwe ku-solvent encibilikiswa khona ezincibilikisweni zezinto eziphilayo, bese kuthi, ngosizo lwe-emulsifiers, ama-resin ahlakazeke emanzini ngokuxubha okunamandla okwenziwa ukuze kwakheke ama-emulsion, abizwa ngokuthi i-post-emulsion, angancibilikiswa ngamanzi ngesikhathi sokwakha.
Upende olungiselelwe ngokufaka inani elincane le-emulsion ku-resin encibilika emanzini awukwazi ukubizwa ngokuthi upende we-latex. Empeleni, upende oncibilikisa amanzi awukwazi ukubizwa ngokuthi upende we-latex, kodwa futhi uhlukaniswa njengopende we-latex ngokwesiko.
Izinzuzo kanye nokungalungi kokugqoka okusekelwe emanzini
1. Ukusebenzisa amanzi njengesinyibilikisi kusindisa izinsiza eziningi. Izingozi zomlilo ngesikhathi sokwakha ziyagwenywa futhi ukungcola komoya kuyancishiswa. Kusetshenziswa inani elincane kuphela lesinyibilikisi se-alcohol ether esinobuthi obuphansi, okuthuthukisa izimo zendawo yokusebenza.
2. Isinyibilikisi se-organic sopende ojwayelekile osekelwe emanzini siphakathi kuka-10% no-15%, kodwa upende wamanje we-cathodic electrophoretic wehlisiwe waba ngaphansi kuka-1.2%, okunomphumela osobala ekunciphiseni ukungcola kanye nokonga izinsiza.
3. Ukuqina kokusabalala kwamandla aqinile omshini kuphansi kakhulu. Uma ijubane lokugeleza epayipini lokudlulisa lihluka kakhulu, izinhlayiya ezihlakazekile zicindezelwa zibe izinhlayiya eziqinile, okuzobangela ukugoba efilimini yokumboza. Kudingeka ukuthi ipayipi lokudlulisa libe sesimweni esihle futhi udonga lwepayipi lungabi namaphutha.
4. Ingcolisa kakhulu imishini yokumboza. Izinto zokwembatha ezingamelani nokugqwala noma insimbi engagqwali ziyadingeka, futhi izindleko zemishini ziphakeme kakhulu. Ukugqwala nokuqhekeka kwensimbi yepayipi lokudlulisa kungabangela imvula kanye nokuqhekeka kwezinhlayiya ezihlakazekile efilimini yokumboza, ngakho-ke amapayipi ensimbi engagqwali nawo ayasetshenziswa.
Indlela yokuqeda ukusetshenziswa kanye nendlela yokwakha yabakhiqizi bopende
1. Lungisa upende ube yi-viscosity efanelekile yokufutha ngamanzi ahlanzekile, bese ulinganisa i-viscosity nge-viscometer ye-Tu-4. I-viscosity efanelekile ivame ukuba yimizuzwana emi-2 kuya kwengama-30. Umenzi wopende uthe uma kungekho i-viscometer, ungasebenzisa indlela ebonakalayo ukuxuba upende ngenduku yensimbi, uhlanganise ubude obungama-20 cm bese umisa ukuze ubuke.
2. Umfutho womoya kufanele ulawulwe ku-0.3-0.4 MPa kanye no-3-4 kgf/cm2. Uma umfutho uphansi kakhulu, upende ngeke unciphe kahle futhi ubuso buzoba nemigodi. Uma umfutho umkhulu kakhulu, kulula ukugoba, kanti inkungu yopende inkulu kakhulu ukuba ingachithwa izinto futhi ithinte impilo yabasebenzi bokwakha.
3. Ibanga eliphakathi kwe-nozzle kanye nobuso bento lingama-300-400 mm, futhi kulula ukugoba uma liseduze kakhulu. Uma likude kakhulu, inkungu yopende ngeke ilingane futhi kuzoba nemigodi. Futhi uma i-nozzle ikude nobuso bento, inkungu yopende izosabalala endleleni, ibangele ukungcola. Umenzi wopende uthe ibanga elithile linganqunywa ngokuya ngohlobo lopende, i-viscosity kanye nomfutho womoya.
4. Isibhamu sokufutha singahamba phezulu naphansi, kwesobunxele nakwesokudla, futhi singagijima ngokulinganayo ngesivinini esingu-10-12 m/min. Kufanele siqonde futhi sibheke ngqo ebusweni bento. Uma ufafaza ezinhlangothini zombili zobuso bento, isandla esidonsa i-trigger yesibhamu sokufutha kufanele sikhululwe ngokushesha. Sivuliwe, lokhu kuzonciphisa inkungu yopende.
Isikhathi sokuthunyelwe: Jan-18-2024