Dab Tsi Cov Teeb Meem Yuav Tsum Tau Them Thaum Vuam Cov Vuam Kub Daj Galvanized Steel Yeeb Nkab?

Kub dipped galvanized steel yeeb nkabmuaj cov txiaj ntsig zoo ntawm kev tiv thaiv corrosion thiab kev pab lub neej ntev, thiab tus nqi kuj tsawg, yog li nws cov kev siv tau nce siab dua thiab siab dua, tab sis qee tus neeg siv tsis them mloog thaum vuam galvanized yeeb, Ua rau qee qhov teeb meem tsis tsim nyog, yog li cov teeb meem yuav tsum tau them sai sai rau thaum weldingkub dipped galvanized steel yeeb nkab?

1. Polishing

Galvanized txheej ntawm qhov chaw weld yuav tsum tau txhuam, txwv tsis pub nws yuav tsim cov npuas, tsheb ciav hlau, vuam cuav, thiab lwm yam, tseem yuav ua rau cov weld tawg thiab txo qhov txhav. Thib ob, vim yog qhov evaporation ntawm zinc, qhov pa luam yeeb dawb ntau heev yog volatilized, uas ua rau puas thiab ua mob rau tib neeg lub cev. Yog li no, cov ntawv galvanized ntawm cov hlau txuas yuav tsum tau txhuam thiab ua tiav.

2. Vuam cov txheej txheem tswj

Qhov kev npaj ua ntej welding ntawm galvanized steel yog tib yam li ntawm cov pa hluav taws xob tsawg tsawg. Nws yuav tsum raug sau tseg tias qhov zawj loj thiab txheej txheej galvanized nyob ze yuav tsum ua kom zoo. Txhawm rau weld nkag mus, qhov zawj loj yuav tsum tsim nyog, feem ntau 60 ~ 65 °, thiab qee qhov sib txawv yuav tsum tshuav, feem ntau 1.5 ~ 2.5mm; txhawm rau txo qhov kev nkag mus ntawm zinc rau lub weld, qhov zawj hauv qhov zawj tuaj yeem yog galvanized ua ntej welding Solder tom qab txheej tawm. Hauv kev ua haujlwm tiag, centralized beveling yog siv, thiab tsis muaj blunt ntug kev siv rau kev tswj hwm nruab nrab. Ob txheej txheej vuam txo cov txheej txheem ua tiav ntawm kev nkag tsis tiav. Lub pas nrig txuas yuav tsum tau xaiv raws cov khoom siv hauv paus ntawm galvanized steel yeeb nkab. Feem ntau, rau cov pa roj carbon qes qis, J422 siv feem ntau vim yog cov haujlwm yooj yim.

3. Vuam txheej txheem

Thaum welding thawj txheej ntawm ntau txheej vuam, sim ua kom yaj cov zinc txheej thiab ua kom nws vaporize thiab yaj kom dim ntawm lub weld, uas tuaj yeem txo cov kua zinc ntau ntxiv nyob rau hauv lub weld. Thaum welding fillet welds, sim ua kom yaj lub zinc txheej hauv thawj txheej thiab ua kom nws vaporize thiab yaj kom dim ntawm lub weld. Txoj kev yog los ua ntej txav qhov kawg ntawm electrode mus tom ntej txog 5 ~ 7mm. Thaum ua cov zinc txheej Tom qab yaj tas, rov qab mus rau qhov qub thiab thawb txuas mus tom ntej. Rau kab rov tav thiab ntsug vuam, yog hais tias luv-slag vuam kab xws li J427 siv, txoj kab hluav taws xob qis yuav ua me me; yog tias txoj kev thauj rov los thiab siv tshuab thev naus laus zis siv, kev siv tshuab tsis muaj vuam tsis zoo tuaj yeem tau txais.