1. Tshem tawm qhov chaw ua haujlwm thiab cov khoom siv ntawm txhua qhov kev thaiv thiab cov khoom khib nyiab.
2. Thaum lub sij hawm pickling, maj mam txo cov hlau hlau rau hauv lub tank kom tsis txhob muaj kua qaub. Thaum ntxiv cov kua qaub, ib txwm nchuav cov kua qaub maj mam rau hauv dej; Tsis txhob nchuav dej rau hauv cov kua qaub, vim qhov no tuaj yeem ua rau muaj kev phom sij txaus ntshai. Cov looj tsom iav tiv thaiv yuav tsum hnav thaum ua haujlwm.
3. Kov hlau hlau thiab lwm yam khoom kom zoo; tsis txhob chais los yog tuav lawv roughly.
4. Muab qhov tseem ceeb ntawm kev nyab xeeb thaum xaim winding thiab kev ua haujlwm dav dav. Cov neeg ua haujlwm uas tsis yog tus neeg ua haujlwm raug xaiv yuav tsum tsis txhob siv lub tshuab ua haujlwm yam tsis muaj kev hloov pauv tus thawj saib xyuas kev pom zoo. Kov hlau coils maj mam; stack lawv ruaj ntseg thiab zoo zoo, kom ntseeg tau tias pawg qhov siab tsis tshaj tsib coils.
5. Tsis txhob kov cov tawv nqaij ncaj qha nrog cov kua qaub lossis alkalis.
6. Yog tias cov kua qaub qis dua cov qauv hauv lub tebchaws, yuav tsum tau tswj xyuas tam sim; txwv tsis pub ntau lawm.
Galvanized hlau hlau yog tsim los ntawm siab-zoo qis- carbon steel pas nrig. Nws yog categorized rau hauv kub-dip galvanized hlau thiab txias-galvanized (electro-galvanized) hlau. Cov txheej txheem ntau lawm suav nrog kev kos duab hlau, pickling (xeb tshem tawm), siab -kub annealing, kub-dip galvanizing, thiab txias.
Yam ntxwv
Galvanized hlau xaim muaj zoo heev toughness thiab elasticity, nrog lub siab tshaj plaws zinc txheej hnyav ntawm 300 g / m². Nws yog tus cwj pwm los ntawm tuab zinc txheej thiab superior corrosion kuj.