Hlau oxidepigments yog cov kev xaiv saum toj kawg nkaus rau cov xim cib, ua tsaug rau lawv cov txheej txheem thov kev paub tab thiab cov teebmeem tinting ruaj khov. Cov kauj ruam tseem ceeb ntawm kev thov yog raws li hauv qab no:
1. Raw Material Pretreatment
Powdered hlau oxide pigments yog av thiab sieved (particle loj: 10-50 μm) kom tsis txhob agglomeration. Kom yooj yim clumped pigments, qhuav premix nrog nplua aggregates (xws li, quartz hmoov) los yog ntxiv dispersants xws li sodium lignosulfonate.
2. Batching & Mixing
Sib tov cov pigments nrog cov khoom siv hauv nruab nrab (av nplaum, shale, ya tshauv, thiab lwm yam) ntawm qhov sib piv ntawm 2% -8% los ntawm tag nrho cov khoom siv hauv paus- kho raws li qhov xav tau xim qhov tob. Piv txwv li:
3%–5% hlau oxide liab rau cib- liab hues
2% -4% hlau oxide daj rau xim daj daj
Compound blending (liab + daj) rau txiv kab ntxwv / xim av tones
Siv lub tshuab sib xyaw kom qhuav (Ntau dua lossis sib npaug li 5-10 feeb) kom paub meej cov txheej txheej ntawm cov khoom siv hauv paus.
3. Moulding & Nias
Tsim cov sib tov rau hauv cib ntawm extrusion (hollow / ntxeem tau cib) los yog siab - compression compression (15-30 MPa, pavement / square cib). Rau saum npoo- tsuas yog xim, siv cov txheej txheem txheej txheej txheej: nias lub hauv paus txheej ua ntej, nthuav cov xim - cov khoom siv nplua nuj, tom qab ntawd rov- nias rau adhesion.
4. Sintering & Curing
Sinter ntawm 900-1200℃(kub txawv ntawm cov khoom siv hauv paus). Khaws ib qho chaw oxidizing los tiv thaiv pigment txo thiab discoloration; siv qhov chaw txo qis yog tias tsim cov cib dub. Txias maj mam los txhim kho xim ceev thiab cib zog.
Qhov Tseem Ceeb Zoo & Ceev faj
Qhov zoo: Cov huab cua tsis zoo (10+ xyoo ntawm sab nraum zoov tsis- ploj), tus nqi qis, tsis yog- tshuaj lom thiab eco- tus phooj ywg.
Kev ceev faj: Tsis txhob muaj sulfur- muaj cov ntaub ntawv raw (tiv thaiv cov pob dub); txwv pigment ratio kom tsawg dua los yog sib npaug li 8% (siab ratios txo cib zog thiab ua rau tawg).
