CAJ | 학술논문

由于生产高级别NM450钢及现有NM360、400耐磨钢系列大幅降低合金成本的需要，要求在热处理炉内采用对钢板进行低温回火的新工艺路线，通过“黑匣子”温度跟踪测试手段对现有设备条件下某厂1#常化炉的低温回火工艺能力进行了诊断，指出该炉子目前还不适应低温回火的工艺要求，在此基础上结合相关文献检索资料，介绍了在不增加大规模投资的前提下对现有设备进行常规/大空燃比燃烧组合脉冲控制及低温状态下引入热风喷射的改造方案，并对此进行了讨论分析。
유우생산고급별NM450강급현유NM360、400내마강계렬대폭강저합금성본적수요，요구재열처리로내채용대강판진행저온회화적신공예로선，통과“흑갑자”온도근종측시수단대현유설비조건하모엄1#상화로적저온회화공예능력진행료진단，지출해로자목전환불괄응저온회화적공예요구，재차기출상결합상관문헌검색자료，개소료재불증가대규모투자적전제하대현유설비진행상규/대공연비연소조합맥충공제급저온상태하인입열풍분사적개조방안，병대차진행료토론분석。
The new low temperature tempering technology must be adopted to produce high level wear-resisting steel such as NM450 and to decrease the alloy cost of ordinary wear-resisting steel such as NM360, NM400. By temperature measurement with “black box”, the low temperature tempering ability of the No.1 normalizing furnace was diagnosed and the result showed that the furnace didn't satisfy the low temperature tempering technology's demand. Two corresponding retrofit strategies were introduced and discussed, and the strategy of normal/large air-fuel ratio combustion should be considered preferentially.