1. Npuas
Cov npuas feem ntau tshwm sim nyob rau hauv nruab nrab ntawm txoj kev welded, thiab cov hydrogen tseem muab zais rau hauv cov hlau welded nyob rau hauv daim ntawv ntawm huab cua npuas. Qhov laj thawj tseem ceeb yog qhov vuam hlau thiab cov welds muaj cov dej noo ntawm qhov chaw. Me me, qhov vuam ceev yog ceev heev, thiab qhov no yog cov ntaub ntawv kom ceev cov coagulation hlau.
2 ,nug ed
Lub tom kawg yog ib tug V-shaped zawj ntawm ntug ntawm lub weld raws qhov nruab nrab ntawm lub weld. Qhov laj thawj tseem ceeb yog qhov vuam ceev, tam sim no, qhov hluav taws xob thiab lwm yam kev mob raug tsim. Nws yog ib qho yooj yim uas yuav ua rau mob tom.
3. Kub tawg
Qhov ua rau thermal tawg yog tias thaum lub vuam muaj kev ntxhov siab heev, los yog cov khoom siv silicon hauv cov hlau welding yog siab heev, muaj cov sulfur tawg. Hlau), thaum lub sij hawm vuam txheej txheem, sulfide nkag mus rau hauv cov kab nrib pleb tshwm sim los ntawm welded hlau.
4. Tsis txaus vuam permeability
Sab hauv thiab sab nraud weld hlau tsis sib tshooj txaus, thiab qee zaum nws tsis welded.
Kev suav cov txheej txheem: (sab nraud txoj kab uas hla-phab ntsa thickness) * phab ntsa thickness * 0 02466=Qhov hnyav ntawm cov yeeb nkab vuam ib meter {kg}
Galvanized yeeb nkab xam: (sab nraud txoj kab uas hla-phab ntsa thickness) * phab ntsa thickness * 0.02466 * 1.06=Qhov hnyav ntawm vuam yeeb nkab ib 'meter' {kg}
