炉型 工件形状 T}P|uP
圆柱 板 薄管 _3T*[s;H
(d/D<1/4,l/D<20) 厚管 K4xZT+Qb
(d/D≥1/4) L5cNCWpo
盐浴炉 K/min·mm-1 0.7 0.7 0.7 1.0 &I?1(t~hT
W/mm (0.167~0.25)D (0.167~0.5)B (0.25~0.5)d (0.25~0.5)d w"-bO ~5h
KW/min (0.117~0.175)D (0.117~0.35)B (0.175~0.35)d (0.25~0.5)d ZzI^*Nyg
空气炉 K/min·mm-1 3.5 4 4 5 ;4F[*VF!w
W/mm (0.167~0.25)D (0.167~0.5)B (0.25~0.5)d (0.25~0.5)d P-No;/!B#
KW/min (0.6~0.9)D (0.6~2)B (1~2)d (1.25~2.5)d `R8~H7{I6
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