炉型 工件形状 `1` f*d
v
圆柱 板 薄管 M6|I6M<
(d/D<1/4,l/D<20) 厚管 I_)*)d44_
(d/D≥1/4) G#`\(NW
盐浴炉 K/min·mm-1 0.7 0.7 0.7 1.0 @ T;L$x
W/mm (0.167~0.25)D (0.167~0.5)B (0.25~0.5)d (0.25~0.5)d 3k$[r$+"
KW/min (0.117~0.175)D (0.117~0.35)B (0.175~0.35)d (0.25~0.5)d P\m7 -
空气炉 K/min·mm-1 3.5 4 4 5 U'( sn
W/mm (0.167~0.25)D (0.167~0.5)B (0.25~0.5)d (0.25~0.5)d _;9!
KW/min (0.6~0.9)D (0.6~2)B (1~2)d (1.25~2.5)d nt1CTWKM8^
备 注 l/D值大取上限,否则取下限 H,l/B值大取上限,否则取下限 l/d值大取上限,否则取下限 l/d值大取上限,否则取下限