Cov txheej txheem tshuaj lom neeg yog muab tso rau hauv lub tank, thiab lub tank txawj yog ua los ntawm steel phaj, thiab sab hauv phab ntsa yog them nrog polyvinyl chloride los yog polyethylene. Siv 12-15% nitric acid rau cov tshuaj tso tseg, qhov kub ntawm 40 ° C mus rau 60 ° C, thiab lub sij hawm yog 2 mus rau 4 teev. Thaum dipped nyob rau hauv ib tug galvanized steel yeeb nkab rau hauv lub tank, xyuam xim rau qhov chaw uas cov huab cua sab laug kom tsis txhob muaj cov pa seem hauv cov yeeb nkab. Thaum lub sij hawm soaking, cov galvanized steel yeeb nkab yuav tsum tau tsiv mus rau thiab down los yog flipped, thiaj li hais tias cov tshuaj nyob rau hauv lub puab kab noj hniav yuav tsum tau hloov tsis tu ncua los txhim kho cov nyhuv.
Yog tias tsim nyog, tshem tawm cov yeeb nkab steel, yaug nrog dej, thiab tsau. Tshuaj tshem tawm kom txog thaum lub npoo ntawm cov yeeb nkab steel galvanized yog tag nrho ntub dej; yaug nws nrog dej kub, tshem tawm cov yeeb nkab steel galvanized tom qab tshem tawm cov roj, thiab tsau rau hauv lub tank dej kub txog li 40-60 degree C. 5-20 feeb.
Lub tank dej yog ua los ntawm steel phaj, sab hauv phab ntsa yog them nrog PVC los yog polyethylene, thiab cov ntsiab lus chlorine ion nyob rau hauv dej yog tsawg dua 25 ppm; galvanized steel yeeb nkab rinsed nrog dej kub yog yaug nrog dej siab, thiab cov ntsiab lus chlorine ion nyob rau hauv dej yog tsawg tshaj li 25 ppm; Cov mis thiab lub sij hawm ntub dej ntawm cov kua ua kua yog ua raws li cov lus qhia tshwj xeeb.
Nws yog ua los ntawm passivation steel phaj thiab muaj ib tug acid-resistant yas puab phab ntsa. Thaum soaking nyob rau hauv lub tank, xyuam xim rau qhov chaw kom tsis txhob muaj huab cua nyob rau hauv lub raj. Thaum lub sij hawm soaking, cov galvanized steel yeeb nkab yuav tsum tau tsiv mus rau thiab down los yog flipped, thiaj li hais tias cov tshuaj nyob rau hauv lub puab kab noj hniav yuav tsum tau hloov tsis tu ncua los txhim kho cov nyhuv.
Yog tias tsim nyog, tshem tawm cov yeeb nkab steel galvanized thiab ntxuav nws nrog dej ua ntej soaking; Yog hais tias cov yeeb nkab yog qhuav, cov yeeb nkab passivated galvanized steel yuav tsum tau qhuav nrog huv compressed cua los yog nitrogen, thiab nws yuav tsum muaj sij hawm txaus los tswj lub ntuj passivation nyob rau hauv cov huab cua ib txwm passivation nyob rau hauv cov huab cua. ; Kev soj ntsuam zoo, tom qab cov yeeb nkab steel galvanized yog passivated, ua tus kheej-kev tshuaj xyuas thiab kev sib nrig sib soj ntsuam, thiab xyuas cov kev soj ntsuam xyuas raws li qhov yuav tsum tau ua; ntim thiab tu. Yog hais tias qhov saum npoo ntawm galvanized steel yeeb nkab yuav tsum tau pleev xim rau, nws yuav tsum ua raws li qhov yuav tsum tau ua ntawm kev thauj khoom. Tom qab kev tshuaj xyuas, cov yeeb nkab steel galvanized yog muab ntim nrog cov yas foob, qhwv hauv peb daim ntaub los tiv thaiv kev tu, thiab cim.
