Thaum siv cov cib refractory, nws yog ib qho tsim nyog kom tsis txhob muaj cov kev tsim kho tsis raug hauv qab no:
(1) Kev tshem tawm: uas yog, qhov tsis sib xws ntawm cov txheej, thaiv thiab thaiv;
(2) Skew: uas yog, tsis sib npaug ntawm kab rov tav;
(3) Cov pob qij txha tsis sib xws: uas yog, tag nrho qhov dav ntawm cov tshauv pob qij txha sib txawv, uas tuaj yeem hloov kho raws li qhov tsim nyog ntawm cov cib;
(4) Kev nce toj: uas yog, muaj qhov tsis sib xws ntawm qhov chaw ntawm phab ntsa ntawm sab caj npab, thiab nws yuav tsum tau ua hauv 1 hli;
(5) Los ntawm qhov chaw: uas yog, high-alumina refractory cib nplhaib nyob rau hauv lub arc-shaped infill phab ntsa tsis zoo li lub plhaub sab nraud;
(6) Hnyav seam: uas yog, sab sauv thiab qis txheej ntawm grey seams yog superimposed, thiab tsuas yog ib tug grey seam raug tso cai nyob nruab nrab ntawm ob txheej;
(7) Kev khiav ntawm cov pwm: uas yog, qhov sib txuam ntawm cov txheej txheej sab hauv thiab sab nrauv, lossis txawm tias lub plhaub raug mob, tsis raug tso cai;
(8) Qhib lub qhov ncauj: uas yog, nyob rau hauv lub arc-shaped filling phab ntsa, cov hmoov tshauv sib koom yog me me sab hauv thiab loj sab nraud;
(9) Staggered theem: uas yog, lub mortar tsis sib npaug ntawm cov khoom txheej, nruab nrab ntawm cov cib thiab lub plhaub, uas tsis tso cai rau hauv ob sab phlu ntawm cov tshuab thiab cov cuab yeej siv tsis tau;
(10) Cov plaub hau seam: uas yog, lub cib seam tsis smeared, thiab phab ntsa tsis huv;
(11) Snaking khoov: uas yog, longitudinal seam, ncig seam los yog kab rov tav seam tsis yog tib yam, tab sis yog khoov rau hauv ib tug wavy zoo;
(12) Kev ntim cov phab ntsa: Nws yog tshwm sim los ntawm deformation ntawm cov tshuab thiab cov khoom siv, thiab cov txheej txheem txheej txheej ntawm cov tshuab thiab cov khoom siv yuav tsum smoothed thaum tsim cov phab ntsa. Thaum tsim ob txheej txheej hauv ob sab hauv, hauv av tuaj yeem ua tau zoo nrog cov rwb thaiv tsev kub;
(13) Kev sib xyaw mortar: Nws tsis raug tso cai siv mortar los ntawm kev yuam kev. Yog li ntawd, thaum kuv siv cov cib refractory, kuv yuav tsum sim zam cov teeb meem saum toj no ntau li ntau tau.
