Daim ntawv thov ntawm qhov loj-inch ncaj seam welded steel kav tau dhau los ua ntau yam hauv tib neeg lub neej. Yog li, koj puas paub dab tsi qib qhov zoo ntawm qhov loj-inch ncaj seam welded steel kav yuav muab faib ua? Cia kuv qhia koj txog cov ntsiab lus tshwj xeeb hauv qab no.

Feem ntau, qhov saum npoo ntawm kub dov loj-inch ncaj seam welded steel yeeb nkab khoom yog FA, thiab nto ntawm pickled loj-inch ncaj seam welded steel yeeb nkab khoom yog FB. Txias dov loj txoj kab uas hla ncaj seam welded steel yeeb nkab khoom yog FB / FC / FD.

Ordinary loj-inch ncaj seam welded steel yeeb nkab cov khoom tsis muaj qhov xav tau siab saum npoo. Piv txwv li, tsheb sab hauv vaj huam sib luag siv FB nto. Rau qee lub vaj huam sib luag sab nrauv ntawm lub tsheb uas nws cov kev cai dav dav tsis yog siab tshwj xeeb, siv FC. Rau cov tsheb high-end, siv FD nto.

Feem ntau, pickled loj-inch ncaj seam welded steel yeeb nkab khoom muaj ib tug FB nto, yog li ntawd lawv yuav siv tau los ua ib co structural qhov chaw es tsis txhob ntawm txias-dov cov khoom.

Muaj ob peb kauj ruam tom qab, uas tuaj yeem txuag cov nqi rau lub tuam txhab. Ntxiv mus, cov hlau oxide nplai ntawm qhov chaw raug tshem tawm, ua rau vuam yooj yim dua.

Hais lus sib piv, piv nrog cov khoom kub-dov, cov khoom pickling yog yooj yim dua rau vuam. Yog tias tom qab oiling, pleev xim, thiab lwm yam, nws yuav yooj yim dua thiab qhov zoo yuav zoo dua.

Tsis tas li ntawd, qhov tseeb qhov tseeb yog qhov zoo dua li cov khoom kub-kuav los tiag, thiab qhov tseeb qhov tseeb yog qhov siab dua piv rau kub dov loj-inch ncaj seam welded steel yeeb nkab khoom. Ntxiv mus, cov khoom noj khoom haus yog du, muaj cov phaj zoo dua, thiab muaj qhov tsis sib xws zoo dua, thiab lwm yam. Cov khoom tiav yog zoo dua li cov khoom kub-kub, thiab nws zoo nkauj dua.