Step furnace was also used on the train axle production line, pipe production line heat treatment.
步进炉还被采用在火车轮轴生产线、钢管热处理生产线。
The results show that the qualification rate of the high-strength steel round link chains for mining was obviously raised after heat treatment by using on-line infrared temperature measurement system.
结果表明，采用红外线在线测温后，矿用高强度圆环链热处理后的合格率明显提高。
The importance of the application of on-line heat treatment with the introduction of advanced equipment was also expounded.
阐述了随着先进生产设备的建立，应用在线热处理技术的意义。
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