Cov impurities thiab stains yog txuas rau saum npoo ntawm stainless hlau phaj, uas zoo li nyuaj rau kev daws. Qhov tseeb, txhua leej txhua tus yog yuam kev. Ntawm no, kuv yuav qhia rau koj txog cov kev kho mob sib txawv ntawm txawv impurities nyob rau hauv stainless hlau phaj.
1. Plua plav nrog impurities nyob rau saum npoo ntawm stainless hlau
Kev tsim khoom yog feem ntau nqa tawm hauv qhov chaw muaj plua plav, thiab feem ntau muaj plua plav hauv huab cua, uas tsis tu ncua ntog ntawm cov khoom siv. Lawv tuaj yeem raug tshem tawm nrog dej lossis alkaline daws. Adhesive grime, txawm li cas los xij, yuav tsum muaj dej siab los yog chav ua kom huv.
2. Floating hlau hmoov nrog impurities nyob rau saum npoo ntawm stainless hlau
Raws li tau hais tseg hauv Standard A380 [3], yog tias cov tshuaj ntsuam xeb tsis tuaj yeem raug tshem tawm tag nrho, nws tsis pom zoo kom siv txoj kev sim no rau ntawm cov khoom siv, uas yog, qhov chaw sib cuag ncaj qha siv rau kev tsim cov tib neeg. cov khoom siv. Ib txoj kev sim yooj yim dua yog muab tso rau hauv dej rau 12-24 teev txhawm rau kuaj xyuas cov pob xeb. Qhov kev sim no tsis paub tseeb thiab siv sijhawm ntev. Cov no yog cov kev ntsuam xyuas, tsis yog kev ntxuav. Yog tias pom hlau, nws yuav tsum tau muab ntxuav los ntawm cov tshuaj thiab electrochemical txoj kev piav qhia tom qab.
3. Xim, chalk thiab cim cwj mem nrog impurities ntawm stainless hlau nto
Cov teebmeem ntawm cov kab mob no zoo ib yam li cov roj thiab roj. Kev ntxuav nrog txhuam huv thiab dej huv los yog cov tshuaj ntxuav alkaline yog pom zoo, thiab cov dej siab los yog chav dej kuj siv tau.
4. Flux nrog impurities nyob rau saum npoo ntawm stainless hlau
Cov txheej txheem vuam siv flux suav nrog phau ntawv vuam, flux-cored arc vuam thiab submerged arc vuam. Cov txheej txheem welding no yuav tso cov kua nplaum zoo rau ntawm qhov chaw, uas tsis tuaj yeem raug tshem tawm los ntawm txoj kev ntxuav zoo tib yam. Cov khoom no yuav yog qhov chaw ntawm crevice corrosion, thiab cov txheej txheem tu txhua yam yuav tsum tau siv los tshem tawm cov dej ntws tawm.