Excitation coil doing magnetic induction on detected material, detecting coils received the induced electromotive force has relationship with shape and size of material hysteresis loop,when sine wave excitation voltage is doing magnetic induction ,the induced electromative force is sinusoidal waveform ,including fundamental wave normally,by measuring fundamental wave component of detecting coil induced electromotive force,it can detect flaw 、heat treatment condition of detected products so as to realize material 、hardness and quenching crack detection.
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The equipment possesses two channels,one of channels is equipped with full automatic mechanism that suitable for steel material and so on metal cars accessories fasteners crack full automatic eddy detector ,and equipped with another independent manual channel,suitable for sorting detection of bolt quenching crack and forging crack.
The process of full automatic channel process: after spiral passing shake material plate and slip into next channel ,doing supplying orderly by two interaction of cylinder and fall into detecting positioning chain and trigger optoelectronic signal and drive chain rotation step forward by step electrical machine and pass probes and detecting.after detecting ,at the rotation,when it is qualified then accumulate detective samples.if not qualified,then eliminated by sorting cylinder. Electric control mode, realizing the whole process logic control by optoelectronic switch;detecting host and probe realize detecting signal output by multi-frequency and graphic display precision.
Manual channel process: manual supply by operator、at the same time the computer detecting procedure is also control and realize automatic sound -light alarm about unqualified products.
The system includes FET-55H (or H type) detecting host (including probe)full automatic double channels detecting sorting mechanism electric control mode.
1、Sorting speed :not lower than 50pieces per minute
2、Using time:more than 24hours in a row
3、Switching speed of product specification:less than 40minutes
4、Users provide air pressure:7-9bars
5、Users provides power source:AC220V,50Hz
6、Automatic emergency stop alarm function when system has failure
Working temperature:-15~55℃
Saving temperature:-20~60℃
Relative humidity:not exceed 85%
Working voltage:AC220V±10V