Kev kho deg rau kev tiv thaiv -kev ua haujlwm corrosion ntawm loj- nplai welded Cheebtsam feem ntau yog txhawm rau tshem tawm cov impurities saum npoo, txhim kho qhov zoo nkauj, thiab txhim kho corrosion kuj. Cov txheej txheem feem ntau tig los ntawm kev ntxuav, tshem tawm xeb, thiab tiv thaiv txheej; txoj kev kho mob tshwj xeeb raug xaiv raws li daim ntawv thov thiab cov kev xav tau ntawm workpiece.
Sib tsoo yog qhov tseem ceeb tshaj plaws txoj kev kho saum npoo. Nws siv cov cuab yeej xws li lub kaum sab xis grinders thiab lub rooj zaum grinders kom du tawm cov hlaws hlaws, spatter, thiab burrs ntawm weld seams, nrog rau khawb thiab dents ntawm qhov chaw ua haujlwm. Cov txheej txheem no ua rau lub ntsej muag tiaj tus thiab du thaum tib lub sijhawm tshem cov nplai zeb thiab xeb, yog li tso lub hauv paus rau kev tshem tawm xeb thiab tiv thaiv - kho corrosion. Thaum lub sij hawm sib tsoo cov txheej txheem, lub zog thov yuav tsum tau ua tib zoo tswj kom tsis txhob muaj cov khoom siv ntau dhau uas yuav ua rau txo qis ntawm phab ntsa ntawm lub workpiece.
Sandblasting yog tsim rau welded Cheebtsam uas yuav tsum tau ib tug high℃ntawm nto roughness thiab meej xeb tshem tawm. Txoj kev no siv lub siab - huab cua kwj los txhawb cov xov xwm abrasive - xws li quartz xuab zeb lossis corundum - mus rau qhov chaw ua haujlwm. Qhov cuam tshuam quab yuam ntawm cov abrasives tshem tawm zeb nplai, xeb, roj, thiab cov coatings qub, tsim kom muaj qhov sib npaug ntawm qhov sib npaug. Qhov no tsis tsuas yog txhim kho cov txiaj ntsig ntawm kev tshem tawm xeb tab sis kuj txhim kho qhov adhesion ntawm cov txheej txheem tiv thaiv tom ntej. Tom qab sandblasting, lub workpiece nto yuav tsum tau ntxuav tam sim ntawd kom tshem tawm cov khoom seem abrasive thiab plua plav.
Acid pickling thiab phosphating kev kho mob feem ntau yog ua hauj lwm los txhim kho corrosion kuj ntawm welded Cheebtsam. Thaum lub sij hawm pickling, ib tug acidic tov yog siv los tshem tawm zeb nplai thiab xeb los ntawm workpiece nto. The subsequent phosphating stage creates a dense phosphate film on the surface, which effectively prevents rusting while simultaneously strengthening the bond between the protective coating and the workpiece substrate. Tom qab cov kua qaub pickling thiab phosphating, lub workpiece yuav tsum tau ua kom huv si yaug thiab ziab kom tsis txhob muaj cov kua qaub seem ntawm corroding cov khoom.
Tsis tas li ntawd, cov txheej txheem txheej txheej saum npoo- suav nrog kev pleev xim thiab hmoov txheej - yog siv los siv cov txheej txheem tiv thaiv rau qhov chaw ua haujlwm. Cov kev kho mob no ntxiv txhim kho ob qho tib si corrosion kuj thiab zoo nkauj zoo nkauj, ua rau lawv tshwj xeeb tshaj yog haum rau welded Cheebtsam uas yog npaj rau lub sij hawm ntev - raug rau ib puag ncig hnyav.
