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29000124配件美國生產(chǎn)機械備件霍尼韋爾降低成本、提率

為了改善冷卻問題，有必要將原4個方向冷卻增加到6個方向冷卻，對噴嘴布置方式重新調(diào)整。3連鑄鋼水溫度的控制對存在芯部裂紋的CM69、Q345E等高Mn、高Al鋼種爐號進行統(tǒng)計分析，主要為中間包前兩爐，其過熱度控制比較高。產(chǎn)生芯部裂紋的主要原因有：該類鋼種鋁含量比較高，鋼水流動性比較差，生產(chǎn)班組為避免出現(xiàn)中間包水口絮瘤問題，人為高控開澆爐和中間包第二爐鋼水過熱度;在高過熱度情況下，采取降低拉速操作，連鑄二冷比水量相對較大，鑄坯表面溫度低，而凝固末端的芯部鋼水仍然是高溫區(qū)域，內(nèi)外溫差梯度較大，中心部位處于高溫脆性區(qū)域，在熱應力的作用下產(chǎn)生了芯部裂紋。4末端電磁攪拌參數(shù)的優(yōu)化在外方調(diào)試設備期間，按其提供的末端電磁攪拌參數(shù)生產(chǎn)425Mn鋼，鑄坯低倍存在白亮帶問題。為了消除白亮帶缺陷，針對不同鋼種對連鑄的配水、過熱度、拉速和末端電磁攪拌等工藝參數(shù)進行綜合、系統(tǒng)地優(yōu)化，終消除了較寬、較重的白亮帶缺陷。陷淮鋼引進DANIELI公司的特殊鋼大圓坯連鑄機工藝裝備性能優(yōu)良，產(chǎn)品質(zhì)量滿足保證值要求。保護渣造成的圓坯渣溝問題，通過改進保護渣性能完全得到消除。

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Foxboro P0916NM-0C FBM242 PLC Module w/ Base w/ 60 day warranty
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