炉型 工件形状 3RH#e1Y
圆柱 板 薄管 "/K&qj
(d/D<1/4,l/D<20) 厚管 Ag-?6v
(d/D≥1/4) Hb AMoow!
盐浴炉 K/min·mm-1 0.7 0.7 0.7 1.0 M_.,c Vk
W/mm (0.167~0.25)D (0.167~0.5)B (0.25~0.5)d (0.25~0.5)d DneSzqO"o
KW/min (0.117~0.175)D (0.117~0.35)B (0.175~0.35)d (0.25~0.5)d b=QGbFf
空气炉 K/min·mm-1 3.5 4 4 5 2}#wdJ`
W/mm (0.167~0.25)D (0.167~0.5)B (0.25~0.5)d (0.25~0.5)d KutgW#+40
KW/min (0.6~0.9)D (0.6~2)B (1~2)d (1.25~2.5)d )Fr;'JYC1S
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