1. Los ntawm txhais tes tshem tawm xeb: siv phau ntawv cov cuab yeej xws li hlau ntawv, scraper, spatula, thiab hlau txhuam.Txoj kev no yog kev siv zog ua haujlwm siab, kev ua haujlwm tsawg, tab sis kev ua haujlwm yooj yim thiab hloov tau, tseem tau txais.
2. Mechanical xeb tshem tawm: Siv cov kev cuam tshuam thiab kev sib txhuam ntawm lub tshuab hluav taws xob kom tshem tawm xeb.Cov tshuab siv feem ntau muaj xws li cua txhuam, rab phom tshem tawm xeb, txhuam hluav taws xob, hluav taws xob xuab zeb log, thiab lwm yam. Cov hlau me me tuaj yeem thauj mus rau hauv cov thoob uas muaj cov xuab zeb daj los yog ntoo chips thiab txav ntawm qhov ceev ntawm 40-60 rpm.Los ntawm kev sib tsoo kev sib txhuam, kev ua haujlwm siab ntau lawm thiab zoo zoo xeb tshem tawm zoo, uas tau siv dav.
3. Txhaj xeb tshem tawm: Siv lub tshuab centrifugal los yog compressed cua thiab dej siab, txau cov abrasive (xuab zeb los yog steel pob) rau hauv qhov chaw ua hauj lwm ntawm qhov kub ceev los ntawm ib lub nozzle tshwj xeeb, thiab tshem tawm cov av (xws li cov tawv nqaij puas lawm. ) thiab corrosion nrog nws qhov cuam tshuam quab yuam thiab kev sib txhuam, nrog kev ua haujlwm siab thiab kev kho kom zoo.Sandblasted steel nto yog me ntsis serrated los ua kom lub zog khi ntawm txheej thiab steel nto.Tab sis nws roughness yuav tsum tsis txhob ntau tshaj 1/3 ntawm cov txheej thickness.Kev siv cov xuab zeb blasting xeb tshem tawm xws li cov xuab zeb qhuav blasting, ntub xuab zeb blasting, plua plav tsis muaj xuab zeb blasting thiab siab siab dej xuab zeb blasting.
4. Kev tshem tawm cov tshuaj xeb: Siv cov kua qaub thiab cov hlau oxides, yaj thiab tev txheej txheej xeb kom ua tiav lub hom phiaj ntawm kev tshem tawm xeb.Yog li nws tseem hu ua "acid washing" thiab tiv thaiv xeb.Muaj ntau ntau cov qauv rau kev tshem tawm cov tshuaj xeb, feem ntau yog sulfuric acid tov ntawm 7% mus rau 15% (los yog 5% lub rooj ntsev) yog siv los ua cov kua qaub tshem tawm.Txhawm rau tiv thaiv sulfate corrosion ntawm hlau, me me ntawm corrosion inhibitors xws li rodine thiab thiourea tuaj yeem ntxiv.Tsis tas li ntawd, nws tseem tuaj yeem siv phosphate acid, nitrate acid, hydrochloric acid thiab lwm yam los ua kom cov kua qaub sib txawv thiab cov tshuaj tshem tawm xeb.Muaj ntau ntau txoj kev ntawm pickling, feem ntau yog siv impregnated acid ntxuav txoj kev, tshuaj tsuag pickling txoj kev.Tsis tas li ntawd, acid cream, nyob ntawm seb cov xwm txheej tshwj xeeb.
Post lub sij hawm: Dec-21-2021