许多年来,工程制造业已纾变得愈来愈依靠专业承包热处理厂,以图从其获得高质量的产品和技术经验。虽然这不是新近发生的现象,但这种趋势正在继续发展着。一个热处理部门要在热处理方面非常有效,就必须具有适应多方面热处理要求的能力和一定的冶金基础。只有最大的制造厂商才能维持一个能对设计、材料及热处理方法提供意见的设备齐全的热处理部门。但即使是产品种类有限的比较小的制造厂商,可能 For many years, the engineering industry has become increasingly dependent on specialized contract heat treatment plants to obtain high-quality product and technical experience. Although this is not a recent phenomenon, this trend is continuing. A heat treatment department to be very effective in heat treatment, it must have to adapt to many aspects of heat treatment capacity and a certain metallurgical basis. Only the largest manufacturers can maintain a fully equipped heat treatment department that advises on design, materials and heat treatment. But even smaller manufacturers with limited product range are possible