*力士乐Rexroth线圈

*力士乐Rexroth线圈

电磁铁
于两个磁场互相叠加,从而使螺线管的磁性大大增强。为了使电磁铁的磁性更强,通常将铁芯制成蹄形。但要注意蹄形铁芯上线圈的绕向相反,一边顺时针,另一边必须逆时针。如果绕向相同,两线圈对铁芯的磁化作用将相互抵消,使铁芯不显磁性。另外,电磁铁的铁芯用软铁制做,而不能用钢制做。否则钢一旦被磁化后,将长期保持磁性而不能退磁,则其磁性的强弱就不能用电流的大小来控制,而失去电磁铁应有的优点。
电磁铁是可以通电流来产生磁力的器件,属非*磁铁,可以很容易地将其磁性启动或是消除。例如大型起重机利用电磁铁将废弃车辆抬起。
当电流通过导线时,会在导线的周围产生磁场。应用这性质,将电流通过螺线管时,则会在螺线管之内制成均匀磁场。假设在螺线管的中心置入铁磁性物质,则此铁磁性物质会被磁化,而且会大大增强磁场。
一般而言,电磁铁所产生的磁场与电流大小,线圈圈数及中心的铁磁体有关。在设计电磁铁时,会注重线圈的分布和铁磁体的选择,并利用电流大小来控制磁场。由于线圈的材料具有电阻,这限制了电磁铁所能产生的磁场大小,但随着超导体的发现与应用,将有机会超越现有的限制

*力士乐Rexroth线圈

德国REXROTH力士乐线圈产品部分型号如下
线圈 R900071030  
线圈 R900071037 
线圈 R900723303
线圈 R900021389
线圈 R900019793
线圈 R900021562
R901087981
R901087981
R901085466
R901084451
R901083065
R901081740
R901080794
R901060817
R901058832
R901050010
R901049962
R901037025
R901022180
R901022174
R901017601
R901017599
R901017592
R901017590
R901017511
R901017496
R901011812
R901009106
R901006187
R901003055
R901003053
R901003044
R901003026
R901002932
R901002558
R901002319
R900991798
R900991797
R900991678
R900991346
R900991121
R900989709
R900989707
R900989705
R900849367
R900845871
R900754548
R900729190
R900729189
R900723304
R900723303
R900723302
R900723301
R900721221
R900704588
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R900704261
R900704191
R900340202
R900336411
R900315819
R900315818
R900230636
R900229884
R900227426
R900225911
R900222314
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R900219603
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R900208923
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R900203710
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R900069998
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R900058018
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R900022479
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R900019861
R900019860
R900019859
R900019858
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R900019850
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R900019817
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R900010811
R900010586
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R902602623
R900877038
R900571360
8941016142
8941016132
8941016112
8941016102
8941012212
8941012202
8941004702
8941000522
8941000302
4402050330
1824484030
R901044595
R901017846
R900015610
R900013674
R900013159
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R900002460
R901017048
R901017037
R901017035
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R900204858
R900082899
R900074683
R900064381
R900057453
R900032356
R900031155
R900023142
R900023126
R900021267

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