1. Ua ntej-Kev Tu: Tshem tawm cov roj, roj, thiab cov khoom tsis huv
Kauj ruam 1.1: Qhuav so kom tshem tawm cov khib nyiab
Siv ib daim ntaub lint -dawb paj rwb ntaub los yog cov ntaub ntawv siv los so qhov chaw txiav thiab ib puag ncig. Ua kom pom tseeb ntawm kev tshem tawm cov plua plav saum npoo, txiav cov chips, thiab cov nplais pob zeb xoob xoob- qhov no tiv thaiv cov kab mob sib kis thaum ntxuav ntub.Kauj ruam 1.2: Degreasing kom tshem tawm cov roj / roj
Xaiv Q355NH- cov degreaser sib xws (piv txwv li, isopropyl cawv, dej-raws li kev lag luam degreasers, lossis cov ntxhia dej) kom tsis txhob ua rau cov hlau tsis zoo.
Rau qhov me me lossis cov npoo hauv zos: Siv cov degreaser nrog ib daim ntaub, so qhov chaw txiav kom huv si, thiab cia nws zaum rau 2-3 feeb kom yaj cov roj.
Rau qhov chaw loj: Siv lub tshuab qis- lub tshuab nqus tsev kom sib npaug ntawm cov tshuaj degreaser, tom qab ntawd txhuam maj mam nrog cov txhuam tsis txhuam (kom tsis txhob khawb qhov qub patina).
Kauj Ruam 1.3: Yaug thiab qhuav
Rau cov dej-raws li degreasers: Yaug nrog dej huv los yog dej deionized kom tshem tawm cov degreaser seem (tsis txhob tso cov tshuaj soapy).
Rau cov kuab tshuaj-raws li degreasers (piv txwv li, isopropyl cawv): Tsis tas yuav tsum tau yaug tawm - cia nws cua- qhuav tag (5-10 feeb) lossis siv daim ntaub huv, qhuav los so cov kuab tshuaj ntau dhau.
Kev kuaj xyuas tseem ceeb: Tom qab ziab, so saum npoo nrog daim ntaub dawb - tsis muaj roj stains, discoloration, los yog residue qhia tias ua tiav degreasing.
2. Core Cleaning: Tshem tawm Oxide Scale, Slag, thiab HAZ
Kauj ruam 2.1: Xaiv lub cuab tam txoj cai raws li txoj kev txiav
Nplaim taws/plasma txiav (ntub oxide nplai + HAZ loj): Siv lub kaum sab xis grinder nrog lub xaim txhuam log (80–120 grit) lossis nruab nrab-abrasive nrov plig plawg disc.
Laser txiav (thin oxide scale + nqaim HAZ): Siv ib tug handheld hlau txhuam los yog nplua -grit sandpaper (120-180 grit) rau lub teeb txhuam.
Kauj Ruam 2.2: Sib tsoo / txhuam qhov chaw txiav
Tuav lub cuab yeej ntawm lub kaum sab xis ntawm 30-45℃rau ntawm ntug txiav, thiab zom / txhuam hauv ib qho kev taw qhia (tsis txhob rov qab- thiab- rov qab scraping) kom tshem tawm cov nplais oxide (tsaus, nkig txheej) thiab slag (molten hlau residues).
Tsom ntsoov rau HAZ (qhov chaw tsis muaj xim nyob ib ncig ntawm qhov txiav- feem ntau tsaus grey lossis xiav): Sib tsoo kom txog thaum lub ntsej muag pom cov xim ci ntsa iab (rau cov npoo txiav tshiab) lossis sib xyaw nrog cov patina uas twb muaj lawm (rau hnub nyoog Q355NH).
Tsis txhob dhau- sib tsoo: Nres thaum cov khoom paug raug tshem tawm- kev sib tsoo ntau dhau ua rau khawb tob uas nqus dej.
Kauj Ruam 2.3: Tshem cov hmoov av sib tsoo
Siv cov cua compressed (tsis tshua muaj siab, Tsawg dua los yog sib npaug ntawm 0.4 MPa) los tshuab cov hmoov av sib tsoo, los yog so nrog cov ntaub so qhuav, huv si. Xyuas kom tsis muaj plua plav nyob hauv qhov khoob lossis cov ces kaum ntawm qhov txiav ntug.
3. Kev Tu Thaum Kawg: Ua kom huv si saum npoo
Kauj ruam 3.1: Secondary so
So tag nrho qhov chaw ntxuav nrog lub degreaser- daim ntaub moistened ib zaug kawg kom tshem tawm cov plua plav lossis roj seem ntawm kev sib tsoo.Kauj Ruam 3.2: Qhuav tag nrho
Cia saum huab cua- qhuav rau 10-15 feeb (lossis siv lub kiv cua kom qhuav sai) kom tsis txhob muaj dej noo. Cov dej noo nyob rau saum npoo yuav ua rau tsis zoo adhesion ntawm xeb hloov xim los yog xim.Kauj ruam 3.3: Kev kuaj xyuas zoo
Kev soj ntsuam pom: Qhov chaw txiav yuav tsum huv si, tsis muaj roj, nplai, slag, plua plav, lossis HAZ.
Tactile check: Qhov saum npoo yuav tsum zoo li qhuav thiab du (tsis muaj nplaum lossis gritty zoo nkauj).
