| 简介 |
Disclosed are a radiant tube, and a manufacturing method thereof, wherein the radiant tub comprises : at least two straight pipe unit installed in the vertical direction; and at least one curved pipe unit communicating with the straight pipe unit. Moreover, the straight pipe unit and the curved pipe unit comprises : 0.30 to 0.50 wt% of C; 35 to 56 wt% of Ni; 25 to 36 wt% of Cr; 1 to 18 wt% of W; 0.5 wt% or less of Mo; and the remainder consisting Fe and inevitable impurities. In addition, the curved pipe unit additionally comprises 0.05 to 0.3 wt% of rear earth metal.(AA) Start(BB) End(S110) First molten metal injection into a centrifugal mold(S120) Straight pipe unit formation(S130) Second molten metal injection into a casting mold(S140) Curved pipe unit formation(S150) Radiant tube formationCOPYRIGHT KIPO 2018 |
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