框架式烏魯木齊電磁鐵又稱箱式(shi)電(dian)(dian)(dian)(dian)(dian)磁(ci)鐵(tie)，因為它(ta)的(de)形狀是方形的(de)。這種(zhong)(zhong)框架電(dian)(dian)(dian)(dian)(dian)磁(ci)鐵(tie)是一種(zhong)(zhong)產(chan)生(sheng)電(dian)(dian)(dian)(dian)(dian)磁(ci)的(de)設備。當變壓器(qi)鐵(tie)心(xin)在(zai)外(wai)旋轉，其輸(shu)出功率與導電(dian)(dian)(dian)(dian)(dian)繞組電(dian)(dian)(dian)(dian)(dian)阻(zu)一致(zhi)時(shi)，帶電(dian)(dian)(dian)(dian)(dian)流的(de)線圈具有(you)與磁(ci)鐵(tie)相同(tong)的(de)磁(ci)性(xing)。我(wo)們通常(chang)(chang)把它(ta)做成(cheng)條狀或蹄狀，使(shi)它(ta)的(de)變壓器(qi)鐵(tie)心(xin)更容易磁(ci)化(hua)。另(ling)外(wai)，為了使(shi)電(dian)(dian)(dian)(dian)(dian)磁(ci)鐵(tie)立即斷電(dian)(dian)(dian)(dian)(dian)消磁(ci)，我(wo)們經常(chang)(chang)采(cai)用(yong)快(kuai)速消磁(ci)的(de)軟(ruan)鐵(tie)或硅鋼材(cai)料(liao)制(zhi)作。這種(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)磁(ci)鐵(tie)插上電(dian)(dian)(dian)(dian)(dian)源就會有(you)磁(ci)性(xing)。當電(dian)(dian)(dian)(dian)(dian)源關閉時(shi)，磁(ci)場將消失。方形電(dian)(dian)(dian)(dian)(dian)磁(ci)鐵(tie)在(zai)我(wo)們的(de)日常(chang)(chang)生(sheng)活中有(you)很多用(yong)途，因為它(ta)的(de)產(chan)生(sheng)也使(shi)發電(dian)(dian)(dian)(dian)(dian)機組的(de)輸(shu)出功率有(you)了很大的(de)提高(gao)。

電磁鐵交流原理

我們先來(lai)看看電(dian)磁(ci)鐵(tie)(tie)的組成原(yuan)(yuan)理：電(dian)磁(ci)鐵(tie)(tie)主要由線(xian)圈、鐵(tie)(tie)芯和(he)電(dian)樞組成。鐵(tie)(tie)芯和(he)電(dian)樞一般(ban)由軟磁(ci)材料制成。一般(ban)分為直流電(dian)磁(ci)鐵(tie)(tie)和(he)通信電(dian)磁(ci)鐵(tie)(tie)。通信電(dian)磁(ci)鐵(tie)(tie)的原(yuan)(yuan)理是什(shen)么？

通訊(xun)電磁(ci)鐵(tie)線(xian)圈(quan)插入時(shi)，鐵(tie)芯和(he)電樞被磁(ci)化(hua)，變(bian)成(cheng)兩(liang)個極(ji)性相(xiang)反的(de)(de)磁(ci)鐵(tie)。當(dang)吸附(fu)力(li)(li)超過張力(li)(li)彈簧的(de)(de)反作(zuo)用力(li)(li)時(shi)，電樞轉向點向鐵(tie)心方向移動。當(dang)線(xian)圈(quan)中的(de)(de)電流(liu)低于(yu)一定值或電源中斷時(shi)，電磁(ci)吸收力(li)(li)低于(yu)張力(li)(li)彈簧的(de)(de)反作(zuo)用力(li)(li)，電樞在反作(zuo)用力(li)(li)的(de)(de)作(zuo)用下會回到原來的(de)(de)釋放(fang)方向。

值得注(zhu)意的是(shi)，通信電磁(ci)(ci)鐵的電磁(ci)(ci)吸收力(li)是(shi)由磁(ci)(ci)選(xuan)機的磁(ci)(ci)場(chang)和磁(ci)(ci)選(xuan)機的磁(ci)(ci)場(chang)組成(cheng)的兩(liang)個交變電場(chang)的磁(ci)(ci)場(chang)力(li)加上(shang)直(zhi)流凈(jing)重(zhong)作用(yong)的，更容易釋(shi)放，所以輸(shu)出(chu)功率低，變壓器(qi)鐵心體(ti)積大(da)，線(xian)(xian)(xian)圈(quan)(quan)(quan)能耗(hao)高；功率因(yin)數低，線(xian)(xian)(xian)圈(quan)(quan)(quan)電流大(da)，發熱嚴重(zhong)，不僅(jin)浪費了(le)電能，而且造成(cheng)線(xian)(xian)(xian)圈(quan)(quan)(quan)老化破壞(huai)過早。很糟(zao)糕。因(yin)此，大(da)多數時候我(wo)們會選(xuan)擇直(zhi)流電而不是(shi)通訊電磁(ci)(ci)鐵。