電廠鋼廠化工數(shù)控機床旋轉(zhuǎn)型伺服電機SGMGV-55DDA6S
為了降低磨礦成本和防止產(chǎn)生過磨、泥化現(xiàn)象，試驗工藝流程采用階段磨礦、弱磁選一強磁選工藝流程，原礦一段磨礦至-.74mm占75%，采用1次弱磁選，1次強磁選拋尾，1次弱磁選，1次強磁選粗精礦再磨礦至-.37mm后，進行2次弱磁選，2次強磁選拋尾。根據(jù)此工藝試驗選用的弱磁選機為普通磁感應(yīng)強度.16T磁選機，強磁選機采用SLon立環(huán)脈動高梯度磁選機，一段磨選的試驗結(jié)果見表4。從表4可見，原礦采用一段磨礦、1次弱磁選、1次強磁選作業(yè)拋尾，綜合鐵精礦品位可達到44.2%，產(chǎn)率59.16%，回收率85.89%，可拋去4.84%的尾礦，大幅減少二段再磨礦量，拋尾效果較好。
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關(guān)鍵詞：選礦工藝；磁鐵礦；磨礦粒度；浮—磁聯(lián)合流程中圖分類號：TD951文獻標(biāo)識碼：B文章編號：14-462（24）5-51-2內(nèi)蒙古磁鐵礦為矽卡巖型礦石，主要有用礦物為磁鐵礦，伴生礦物有黃鐵礦、黃銅礦、磁黃鐵礦等。脈石礦物主要是石英、方解石等.磁鐵礦嵌布粒度細(xì),有害雜質(zhì)主要是硫。研究要求鐵精礦含鐵品位不低于64%，精礦含硫低于.5%，同時探討銅、鈷回收價值。樣的制備及原礦化驗指標(biāo)試驗所用礦樣礦石粒度15mm。
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力士樂驅(qū)動\板卡HNL系列型號： 博大精深 同心致遠(yuǎn)
編號 Cat.description Part NO.
HNL01.1D-0400-S0126-A-NNND
HNL01.1D-0400-S0126-A-480-NNND
HNL01.1D-0400-S0126-A-480-NNND R911325890
HNL01.1E-0170-N0146-A-NN NN
HNL01.1E-0170-N0146-A-500-NN NN 博大精深 同心致遠(yuǎn)
HNL01.1E-0170-N0146-A
HNL01.1E-0170-N0146-A-500-NN NN R911307202
力士樂驅(qū)動\板卡HMV系列型號：
編號 Cat.description Part NO. 博大精深 同心致遠(yuǎn)
HLR01.1N-0300-N17R5-A-007-NNNN /R911305931
HLR01.1N-0470-N11R7-A-007-NNNN /R911305932
HLR01.1N-0780-N07R0-A-007-NNNN /R911305933
HLR01.1N-01K6-N18R0-A-007-NNNN/ R911306869
HLR01.1N-02K0-N15R0-A-007-NNNN /R911306870
HLR01.1N-1K08-N05R0-A-007-NNNN R911305934 博大精深 同心致遠(yuǎn)
HLR01.1N-06K5-N06R1-A-007-NNNN R911306749
HLR01.1N-12K5-N05R5-A-007-NNNN R911306874
HLR01.1N-15K6-N05R1 -A-007-NNNN R911306876
HLR01.1N-22K7-N05R5-A-007-NNNN R911306877
HLR01.1N-33K3-N05R4-A-007-NNNN R911305866
冷卻。在等溫過程中組織已完全轉(zhuǎn)變，等溫后空冷即可。優(yōu)點：通過選擇等溫溫度來獲得預(yù)期的組織和性能，且組織的均勻性和性能的一致性都較好，合金鋼可得到較低的退火硬度，退火周期比較短。常用工具鋼等溫退火參數(shù)及硬度值見附錄。球化退火定義：使鋼中的碳化物球狀化的退火方法稱為球化退火。目的：降低硬度，改善切削加工性能。鋼經(jīng)球化退火后，形成的球狀碳化物具有比片狀碳化物低的硬度，有利于改善切削加工性能。
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