Ceramic Layer Requirements Rau Ceramic Wear-Resistant Yeeb Nkab Kab

Lub precision thiab uniformity ntawm lub thickness ntawm cov ceramic txheej hauv ob sab phlu ceramic hnav-resistant raj, raws li nws cov tub ntxhais hnav-resistant tivthaiv, yog ib qho tseem ceeb heev. Nyob rau hauv qhov kev taw qhia ntev, peb xav kom lub thickness kam rau ua ntawm cov ceramic txheej yuav tsum nruj me ntsis tswj nyob rau hauv ib tug ntau yam ntawm tsis ntau tshaj li 1. siv lub sij hawm. Nyob rau ntawm txoj kab hla hla, qhov radial non-uniformity kam rau ua yog nruj me ntsis txwv tsis pub dhau ± 0.8 millimeters. Qhov yuav tsum tau ua kom zoo no ua kom muaj kev sib haum xeeb ntawm cov txheej txheem ceramic hauv cov kev taw qhia ib puag ncig, ntxiv kev txhim kho tag nrho cov kev ua haujlwm ntawm cov kav dej.
Raws li rau lub thickness ntawm cov ceramic txheej, peb qhia nws li 4 millimeters thiab xav kom lub thickness sib txawv yuav tsum tsis txhob ntau tshaj ± 1 millimeter. Cov kev cai no ua kom cov tuab txaus ntawm cov txheej ceramic kom ua tau raws li qhov yuav tsum tau ua, thaum tseem ua kom nws qhov tseeb hauv cov txheej txheem tsim khoom thiab txo cov kev pheej hmoo uas tshwm sim los ntawm qhov tsis sib xws.
Nyob rau hauv lub luj tshib seem, txhawm rau kom ntseeg tau tias cov txheej txheem ceramic thiab du vuam, peb tau ntxiv cov yeeb nkab ncaj ncaj rau hauv ob qho tib si cov lus qhia nkag thiab qhov hluav taws xob. Rau cov kav dej DN175, qhov ntev ntawm cov yeeb nkab ncaj yog 150 millimeters; Rau DN250 pipelines, qhov ntev no nce mus rau 200 millimeters. Tsis tas li ntawd, lub kaum sab xis ntawm cov yeeb nkab khoov yog nruj me ntsis tswj nyob rau hauv ± 15 ', thiab kev kam rau siab ntawm curvature vojvoog kuj txwv rau ± 3 millimeters. Cov kev cai kam rau ua kom paub meej qhov tseeb thiab smoothness ntawm qhov khoov.
Thaum kawg, txhawm rau tiv thaiv cov txheej txheem ceramic los ntawm kev puas tsuaj thaum lub sijhawm vuam, peb xav kom lub ntsej muag kawg ntawm cov kav dej thiab fittings siv V-shaped grooves nrog blunt npoo. Lub kaum sab xis ntawm qhov zawj no yog teem rau 30-35 degree , nrog rau qhov tob ntawm 2/3 ntawm cov yeeb nkab steel phab ntsa tuab, thiab ib qho blunt ntug tsis tshaj 4 millimeters. Qhov kev tsim no tsis tsuas yog tiv thaiv cov txheej txheem ceramic, tab sis kuj txhim kho qhov zoo thiab ua haujlwm ntawm vuam.