Yuav ua li cas xaiv cov kav dej zoo? Ua ntej saib kev ua lag luam. Kev lag luam ntawm cov kav dej tsis tuaj yeem ntsuas los ntawm thawj qhov peev txheej, vim tias nws yog "kev nqis peev me me, poob loj" cov khoom lag luam. Lub neej ntev, kev tu-dawb, thiab tsis poob yog cov yuam sij rau kev lag luam ntawm cov kav dej. Yog tias cov kav dej thiab cov yeeb nkab fittings tsis tuaj yeem muaj lub neej zoo ib yam li cov tsev, nws yuav ua rau cov neeg siv khoom poob ntau dua 10 npaug ntawm thawj qhov kev nqis peev hauv cov kav dej (feem ntau yog qhov poob ntawm ntau yam khoom siv kho kom zoo nkauj), thiab tseem tuaj yeem ua rau tsev neeg poob thiab nce kev tu. nqi. Kev ua haujlwm ib puag ncig thiab kev tu cev: cov khoom siv yeeb nkab dej zoo yuav tsum tsis txhob ua rau cov dej paug thiab tuaj yeem siv rov ua dua. Corrosion kuj: Ntxiv nrog rau lub zog ntawm cov khoom siv yeeb nkab dej, cov khoom siv yeeb nkab zoo yuav tsum muaj zog corrosion kuj. Feem ntau muaj xws li: dej ntws corrosion tsis kam, dej corrosion kuj, huab cua corrosion kuj, thiab lwm yam. Corrosion yog qhov thib ob ntawm cov kav dej xau, tab sis nws yog thawj yam uas ua rau cov kav dej ua rau cov dej tsis zoo. Kev ua haujlwm thermal expansion: Peb siv dej txias thiab dej kub; ib puag ncig peb nyob hauv kuj hloov pauv txhua xyoo. Yog li ntawd, cov ntaub ntawv zoo ntawm cov yeeb nkab dej yuav tsum tsis yog cov khoom siv thermally conductive, tab sis yuav tsum muaj cov thermal expansion coefficient me me thiab muaj zog adaptability rau ambient kub thiab kev khiav hauj lwm kub. Tshaj thermal expansion coefficient kuj yog ib qho laj thawj rau cov dej ntws.
