炉型 工件形状 >W
r$Y{
圆柱 板 薄管 &M[MEO`t8
(d/D<1/4,l/D<20) 厚管 [q1Unm
(d/D≥1/4) Dv@PAnk3C
盐浴炉 K/min·mm-1 0.7 0.7 0.7 1.0 e8oKn&
W/mm (0.167~0.25)D (0.167~0.5)B (0.25~0.5)d (0.25~0.5)d .l\r9I(
KW/min (0.117~0.175)D (0.117~0.35)B (0.175~0.35)d (0.25~0.5)d k=?^){[We
空气炉 K/min·mm-1 3.5 4 4 5 EJ`Q8uz
W/mm (0.167~0.25)D (0.167~0.5)B (0.25~0.5)d (0.25~0.5)d |k6Ox*
KW/min (0.6~0.9)D (0.6~2)B (1~2)d (1.25~2.5)d (_K_`5d;QI
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