炉型 工件形状 ,LW0{(&z
圆柱 板 薄管 ^2=zp.)
(d/D<1/4,l/D<20) 厚管 E.}Zmr#H
(d/D≥1/4) $=bN=hE
盐浴炉 K/min·mm-1 0.7 0.7 0.7 1.0 xQ[YQ!l
W/mm (0.167~0.25)D (0.167~0.5)B (0.25~0.5)d (0.25~0.5)d VltWY'\Wu;
KW/min (0.117~0.175)D (0.117~0.35)B (0.175~0.35)d (0.25~0.5)d j@DyWm/7
空气炉 K/min·mm-1 3.5 4 4 5 u4"+u"{d
W/mm (0.167~0.25)D (0.167~0.5)B (0.25~0.5)d (0.25~0.5)d Z-Uq89[HZ
KW/min (0.6~0.9)D (0.6~2)B (1~2)d (1.25~2.5)d CtfSfSAUuu
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