Seamless steel raj rau qis thiab nruab nrab siab boilers (GB3087-2018) yog cov zoo carbon structural steel kub dov thiab txias-duav (dov) seamless steel raj, uas yog siv rau kev tsim superheated chav kav, boiling dej kav rau ntau yam qauv ntawm qis thiab nruab nrab siab boilers thiab superheated chav kav, cov pa luam yeeb loj. , cov kav dej me me thiab cov kav cib cib rau locomotive boilers.

Qhov kawg ntawm cov yeeb nkab steel yuav tsum yog perpendicular mus rau axis ntawm cov yeeb nkab steel, thiab burrs yuav tsum tau muab tshem tawm.wb 3087txheem steel yeeb nkab feem ntau yog ua los ntawm 10, 20 kub dov los yog txias dov zoo carbon structural steel, feem ntau xav taudej siabe, crimping, flaring, flatteningthiab lwm yam kev ntsuam xyuas los xyuas kom meej cov khoom zoo thiab kev ua tau zoo.