Dab tsi yog cov teeb meem hauv kev tsim khoom siv kev ua kom huv?
Huv li qub siv nyob rau hauv kev tsim ntawm qee yam khoom noj, kho mob, tshuaj pleev ib ce thiab lwm cov khoom lag luam nrog lub siab huv, yog li cov cai ntawm cov khoom siv tu huv kuj tseem siab. Yog tias lub valve muaj teeb meem thaum lub sijhawm txheej txheem ntau lawm, nws yog kiag li tsis tau tso cai. Yog li, peb yuav tsum sim peb qhov zoo kom tsis txhob muaj cov teeb meem thaum lub sijhawm khoom tsim khoom.
Kaw li qub muaj teeb meem hauv kev ua:
Ua ntej, kev kos tawm los ntawm tib neeg yam xws li pob thiab tsoo rau lub sijhawm kev thauj mus los lossis ua tiav yog qhov loj heev, uas ua rau nws nyuaj rau pov tseg ntawm cov tsos hauv cov txheej txheem txuas ntxiv, uas yog vim li cas lub valve tseem yuav tsim tom qab pov tseg lub ntsiab ntawm xeb.
Thib ob, thaum vuam, vim hais tias lub welds muaj ntau qhov luv luv tsis txaus, phau ntawv kho tshuab feem ntau siv rau kev sib tsoo. Cov tsos ntawm kev sib tsoo yuav ua rau tsis sib luag, muaj kev cuam tshuam cov tsos ntawm lub valve, lossis ib qho kua qaub ntawm qhov txuas ntawm qhov hlau. Ntxuav thiab passivation tseem yuav cuam tshuam rau cov tsos.
Thib peb, rau khawb thiab lwm yam teeb meem uas tshwm sim thaum lub sijhawm ua, txawm tias tag nrho cov txheej txheem yog keej thiab hla dhau, cov khawb yuav tsis tuaj yeem so, thiab cov pa roj carbon lossis txau uas cuam tshuam rau saum npoo yuav tsis raug khawb lossis welded. Kev cuam tshuam tshem tawm, uas ua rau muaj kev tawm xov xwm corrosive thiab thaum kawg xeb ntawm lub valve.
Thib plaub, lub pickling passivation paste tsis zoo rau kev ntxuav huv li qub, tshwj xeeb tshaj yog rau oxide nplai tsim los ntawm ntshav txiav lossis nplaim txiav yog qhov tshwj xeeb nyuaj rau tshem tawm.