Ukwenziwa:iityhubhu ukuya kwi-GB/T 6479 ziya kwenziwa ngokuqengqeleka kushushu okanye kutsalwe ngokubanda.
Unyango loBubushushu:Iityhubhu ziya kuveliswa ngokuphathwa kobushushu, WT≤30mm normalizing & tempering, WT>30mm quenching & tempering okanye normalizing & tempering.
Uhlolo kunye noVavanyo:Uhlalutyo lwekhemistri, uvavanyo loxinzelelo, uvavanyo lokucaba, uvavanyo lwe-flaring, uvavanyo lwempembelelo, uvavanyo lwe-macroscopic, i-non-metallic inclusions, i-NDT, ukuhlolwa komphezulu kunye nokujonga ubukhulu.
Ubude:4000mm;6000mm;9000mm;12000mm;kwaye nangokunjalo.
Ubude obuphuhlileyo obukhulu:Iimitha ezingama-30, ngokunjalo U ukugoba, ukugoba, inkqubo egxininisiweyo inokubonelelwa.
Ukhetho:ukudubula ukudubula kumphezulu wangaphandle ukususa isikali sokusila, yenza umphezulu wombala we-matte;ukugudisa umphezulu njengomsebenzi wokulungiselela owenziweyo ukuze kuqhutyekwe phambili, umzekelo ukupeyishwa.
OD:Φ50-325mm.
WT:3-55mm.
Ukunyamezela kweOD:±0.75%.
Ukunyamezela ukutyeba koDonga:-10%——+12,5%.
Ukujikeleza kwedayamitha yangaphakathi nangaphandle:I-80% yokunyamezela kwe-diameter yangaphandle ayigqithiswanga.
Utyekelo lobuso besiphelo:≤2mm.
Ukuthe tye:1mm/1m.