1. Weldability
Q355NH huab cua steelmuaj zoo weldabilitythiab yog dav siv nyob rau hauv welded steel qauv.Nws yog tsim los tso cai welding txoj kev, zoo ib yam li Q355B carbon hlau.
2. Feem ntau siv txoj kev vuam
Shielded hlau arc vuam (SMAW)
Gas hlau arc vuam (GMAW/MIG/MAG)
Submerged arc vuam (SAW)
Gas tungsten arc vuam (GTAW / TIG)
3. Cov khoom siv vuam sib txuam
Huab cua steel xav taukev sib piv huab cua- tiv taus vuam electrodes / xov hlaukom ntseeg tau tias thaj tsam weld muaj qhov zoo sib xws ntawm corrosion thiab mechanical zog raws li lub hauv paus hlau.
Siv cov pa roj carbon steel zoo tib yam muab tub lim hlau yuav txo cov huab cua kev ua haujlwm hauv thaj chaw weld.
4. Qhov tseem ceeb vuam ceev faj
Tswj cov khoom siv hluav taws xob kom tsis txhob muaj qoob loo ntau dhau thiab txo cov tawv nqaij.
Preheating feem ntau yogtsis xav taurau nyias mus rau nruab nrab thickness nyob rau hauv tej yam kev mob.
Rau cov phaj tuab lossis qis - qhov kub thiab txias, kev ua kom zoo preheating thiab interpass kub tswj tau raug pom zoo.
Tsis txhob ua kom txias sai kom tsis txhob txias tawg.
Tshem cov welding slag, spatter, thiab cov kab mob saum npoo kom tuav tau ntev - lub sij hawm corrosion kuj.
5. Kev ua tau zoo ntawm cov pob qij txha welded
Zoo-ua welded pob qij txha tuaj yeem ua tiavruaj khov thiab toughnessphim lub hauv paus hlau.
Nrog cov ntaub ntawv muab tub lim kom raug, thaj tsam weld tuaj yeem tsim kev tiv thaiv patina thiab tswj huab cua tiv thaiv.
