麦克载重汽车公司最近采用盐浴加热、等温淬火工艺使车桥的抗疲劳强度提高2倍,同时还可避免工件变形,取消了校直、研磨等工序。采用盐浴加热,当冷部件进入盐浴炉时,就立即被包在一个绝缘壳内或凝固盐壳内。凝固盐壳大约1分钟内即溶化,但此时部件已经安全预热。同时,由于溶解的盐完全包围住了部件,并渗入所有凹处,因此在整个工件表面的热传导是均匀的。 Mike truck recently with salt bath heating, isothermal quenching process so that the axle fatigue resistance increased by 2 times, but also to avoid the workpiece deformation, eliminating the straightening, grinding and other processes. Salt bath heating, when the cold parts into the salt bath furnace, immediately wrapped in an insulating shell or solidified salt shell. The solidified salt shell melts in about 1 minute, but the part is safely warmed up. At the same time, the heat transfer across the entire workpiece surface is uniform, as the dissolved salt completely surrounds the component and penetrates all the pockets.