CITIEDECHENGFENSHITIE、GU、NIEDENGYUANZI，QIYUANZIDENEIBUJIEGOUBIJIAOTESHU，BENSHENJIUJUYOUCIJU。CITIENENGGOUCHANSHENGCICHANG，JUYOUXIYINTIECIXINGWUZHIRUTIE、NIE、GUDENGJINSHUDETEXING。

磁铁种类：形状类磁铁：方块磁铁、瓦形磁铁、异形磁铁、圆柱形磁铁、圆环磁铁、圆片磁铁、磁棒磁铁、磁力架磁铁，属性类磁铁：钐钴磁体、钕铁硼磁铁（强力磁铁）、铁氧体磁铁、铝镍钴磁铁、铁铬钴磁铁，行业类磁铁：磁性组件、电机磁铁、橡胶磁铁、塑磁等等种类。磁铁分永久磁铁与软磁，永久磁铁是加上强磁，使磁性物质的自旋与电子角动量成固定方向排列，软磁则是加上电。（也是一种加上磁力的方法） 等电流去掉软铁会慢慢失去磁性。

JINGGUOQIANBAINIANDEFAZHAN，JINTIANCITIEYICHENGWEIWOMENSHENGHUOZHONGDEQIANGLICAILIAO。TONGGUOHECHENGBUTONGCAILIAODEHEJINKEYIDADAOYUXITIESHIXIANGTONGDEXIAOGUO，ERQIEHAIKEYITIGAOCILI。ZAI18SHIJIJIUCHUXIANLERENZAODECITIE，DANZHIZAOGENGQIANGCIXINGCAILIAODEGUOCHENGQUESHIFENHUANMAN，ZHIDAO20SHIJI20NIANDAIZHIZAOCHULVNIEGU(Alnico)。SUIHOU，20SHIJI50NIANDAIZHIZAOCHULETIEYANGTI(Ferrite),70NIANDAIZHIZAOCHUXITUCITIE[Rare Earth magnet BAOKUONVTIEPENG(NdFeB)HESHANGU(SmCo)]。ZHICI，CIXUEKEJIDEDAOLEFEISUFAZHAN，QIANGCICAILIAOYESHIDEYUANJIANGENGJIAXIAOXINGHUA。

JIRANCISHINENGXIYINTIE，NEIMESHIFOUHAIKEYIXIYINQITAJINSHUNI？WOMENDEXIANMINZUOLEXUDUOCHANGSHI，FAXIANCISHIBUJINBUNENGXIYINJIN、YIN、TONGDENGJINSHU，YEBUNENGXIYINZHUANWAZHILEIDEWUPIN。XIHANDESHIHOURENMENYIJINGRENSHIDAOCISHI

ZHINENGXIYINTIE，ERBUNENGXIYINQITAWUPIN。DANGBALIANGKUAICITIEFANGZAIYIQIXIANGHUKAOJINSHI，YOUSHIHOUHUXIANGXIYIN，YOUSHIHOUXIANGHUPAICHI。RENMENDOUZHIDAOCITIYOULIANGGEJI，YIGECHENGN JI，YIGECHENGS JI。TONGXINGJIXIANGHUPAICHI，YIXINGJIXIANGHUXIYIN。NEISHIDERENMENBINGBUZHIDAOZHEIGEDAOLI，DANDUIZHEIGEXIANXIANGHAISHINENGGOUCHAJUEDAODE。

DAOLEXIHAN，YOUYIGEMINGJIAOLUANDADEFANGSHI，TALIYONGCISHIDEZHEIGEXINGZHIZUOLELIANGGEQIZIBANDEDONGXI，TONGGUODIAOZHENGLIANGGEQIZIJIXINGDEXIANGHUWEIZHI，YOUSHILIANGGEQIZIXIANGHUXIYIN，YOUSHIXIANGHUPAICHI。LUANDACHENGQIWEI“DOUQI”。TABAZHEIGEXINQIDEWANYIXIANJIHANWUDI，BINGDANGCHANGYANSHI。HANWUDIJINGQIBUYI，LONGXINDAYUE，JINGFENGLUANDAWEI“WULIJIANGJUN”。LUANDALIYONGCISHIDEXINGZHI，ZHIZUOLEXINQIDEWANYIMENGPIANLEHANWUDI。

DIQIUYESHIYIGEDACITI，TADELIANGGEJIFENBIEZAIJIEJINDILINANJIHEDILIBEIJIDEDIFANG。YINCIDIQIUBIAOMIANDECITI，KEYIZIYOUZHUANDONGSHI，JIUHUIYINCITITONGXINGXIANGCHI，YIXINGXIANGXIDEXINGZHIZHISHINANBEI。ZHEIGEDAOLIGURENBUGOUMINGBAI，DANZHEILEIXIANXIANGTAMENHENQINGCHU。

CITIEFENLEI:

CITIEKEFENZUO“YONGJIUCITIE”YU“FEIYONGJIUCITIE”。YONGJIUCITIEKEYISHITIANRANCHANWU，YOUCHENGTIANRANCISHI，YEKEYIYOURENGONGZHIZAO（ZUIQIANGDECITIESHINVCITIE）。ERFEIYONGJIUXINGCITIE，ZHIYOUZAIMOUXIETIAOJIANXIAHUIYOUCIXING，TONGCHANGSHIYIDIANCITIEDEXINGSHICHANSHENG，YEJIUSHILIYONGDIANLIULAIQIANGHUAQICICHANG。