目录Index1、基本原理和使用条件Basic principle and operating conditions2、产品型号及含义Models and contents3、用途及使用范围Usage and applicable range4、结构及特点Structure and characteristic5、电气性能Electrical property6、型号、技术参数与外形尺寸图Models, technical data, and overall dimension drawing 7、使用注意事项Cautions8、保养及维修Maintenance and service1.基本原理和使用条件 Basic principle and operating conditions1.1 基本原理 Basic principle电磁铁工作时，电源及控制设备向电磁铁供给直流电，电磁铁内部产生强大的磁场，通过壳体磁路和工作气隙对被吸物产生强大磁力而达到搬运物料的目的。
When electromagnet works, the power source and the controlling device supply direct current to the electromagnet. A strong magnetic field will be generated inside the electromagnet, the magnetic field gives enough strong magnetic force on the material through the shell magnetic circuit and the operating clearance to lift the bulk material .1.2 使用条件 using conditions1.2.1 使用地点的海拔高度不超过2000m。
Not more than elevation of 2000m1.2.2 周围空气温度：Surrounding air temperature常温型：不高于+40℃，不低于-20℃。
Normal temperature type -20℃ ~ +40℃高温型：不高于+50℃，不低于-20℃。
High temperature type: no more than +50℃,no less than -20℃1.2.3 周围工作环境无爆炸危险和不含有腐蚀性气体的环境中。
No explosive dangerous or corrosive gas around the magnet.1.2.4 周围环境相对温度不大于85%。
The relative humidity is not more than 85%1.2.5 户外、户内均可使用。
Both outdoors and indoors.2.产品型号说明：Model DesignationsMW辅助规格代号："QS"表示潜水型"1"表示常温型"2"表示高温型"75"表示高频型派生代号："L"表示铝材"表示铜导线基本规格代号：圆形电磁铁表示直径（cm）方形电磁铁表示长×宽（cm）This series electromagnet is widely applied to metallurgy, casting, machine manufacture, transportation and so no ,forming complete set with lifting equipment equipments to carry out loading and handling the magnetic material such as pig irons and scrap steel.3.2 适用范围 Applicable range本起重电磁铁适用于直流额定工作电压为220V，常温型起重电磁铁被吸物表面温度100℃以下，高温型起重电磁铁被吸物温度600℃以下。
This lifting electromagnet is suitable to the direct current fixed working voltage is 220V, the normal temperature lifting electromagnet by the attached materials’surface temperature 100 ℃ below, high temperature lifting electromagnet ‘s the attached materials temperature is below 600 ℃ .4.结构及特点 Structure and characteristic4.1 结构 structure4.1.1 起重电磁铁的磁路由钟盖、内外磁极、铁芯和被吸物构成。
The magnetic circuit of lifting electromagnet consists of bell cover, inner and outer magnetic pole, iron core and the held materials.4.1.2 线圈放置在由钟盖、非磁性保护板构成的密封容器中，且用绝缘胶固定。
The magnetic coil will be put into airtight container made of bell cover, non-magnetic protecting plate with insulation rubber fixed.4.1.3 整体采用焊接结构。
The whole framework uses the welding structure4.1.4 高温电磁铁采用了双层辐射式特殊隔热结构。
The high temperature electromagnet has used the double-decked radiation special heat insulation structure4.1.5 潜水电磁铁整体采用气密试验后的焊接结构，出线盒进行了特殊的密封处理，出厂前进行了模拟试验。
The underwater type uses brazing structure through air tightening test ,outlet enclosure has been made special treatment for sealing with simulated tryout before delivery.4.2 特点 Characteristics4.2.1 采用了导磁性能及加工性能良好的优质电工铸钢或低碳钢作为磁路的导磁物。
Adopting electric casting steel or low carbon steel with excellent magnetic conductivity and well finished performance as the conductor to the magnetic circuit.4.2.2 线圈的材料一般为铝材，绝缘性能及耐热性能优良。
The coil material is generally the aluminum material, the insulating ability and the heat-resisting performance is fine4.2.3 高频、高温电磁铁在保证与同一规格的常温电磁铁有相同起吊能力的同时，略增加自重而降低功耗。
The high frequency and high temperature type will be guaranteed to have the same lifting capacity as the normal temperature type as well as minimizing work consumption, though it just increase much self-weight.4.2.4 采用全密封结构，有较好的防潮性能。
Use the entire seal structure with good moisture-proof performance.4.2.5 潜水电磁铁可潜入水中使用，有优良的防水性能。
The underwater type with good water-proof capability when submerged4.2.6 散热、隔热性能良好，安全可靠、使用寿命长。
Good heat radiation and insulation. safe ,reliable and durable if operatingin correct way.5.电气性能 The electrical property5.1 电磁铁的工作状态为反复短时工作制，基本型电磁铁通电持续率为50%，高频电磁铁通电持续率为75%，一个周期为10分钟。
即：TD%= tp/（tp+tn）100%Electromagnet operates in repeatedly short–time working mode. Basic type of electromagnet keeps DC energized condition sustaining rate about 50%.high frequency type keeps DC energized condition sustaining rate about 75%.That is: (duty cycle)TD%=（tp+tn）100%tp为工作时间，tn为休止时间。
Viz：TD%= tp/（tp+tn）100%“tp” is work time ，“tn” is stop time。
即电磁铁从通电吊起钢料送到目的地，到释放被吸物的整个一段时间为工作时间tp，返回原来位置的时间为休止时间tn，一个周期是工作与休止时间之和。
”tp” means the electromagnet operating time from being energized to liftthe material to the destination and to release magnetic force from the handled materials. ”tn”means the idle time the electromagnet returns to home position. One cycle id the operating time plus idle time.5.2 在额定工作电压和通电持续率为50%、75%时的间歇工作情况下，电磁铁线圈的稳定温升不能超过允许温升值。