JWZ-A型車軸磁粉探傷機

適用范圍：

適用于鐵路機車車輛車軸表面的磁粉探傷檢測

特點及技術指標：

1.  縱向磁化線圈采用自主知識產權的雙螺旋鎖緊開合線圈，保證磁化線圈接點不發熱不打火，線圈通電可靠，磁化效果穩定，線圈壽命長

2.  采用了變頻傳動裝置來控制車軸旋轉，轉速可自由設定并實現動態換向，便于觀察磁痕

3.  采取磁化電流不等值衰減措施，關斷電源時自動退磁，被檢測工件剩磁小

4.  采用了先進的可控硅調流系統，磁化電流連續可調

5.  床式一體化設計，無須特殊基礎，安裝維修簡便

6.  磁化方式：復合磁場

7.  周向磁化峰值電流：0-4800A連續可調

8.  縱向磁化磁動勢：0-28000AT連續可調

9.  檢測表面磁場強度：≥2400（3200）A/m

10.    周向磁化夾頭最大間距：2650mm

11.    支撐最大工件重量：1500kg

12.    退磁方式：原位衰減法

13.    檢測靈敏度：清晰顯示A1型標準試片15/50（7/50）的人工缺陷

14.    剩磁：不大于0.3mT

JWZ-A Magnetic Particle Flaw Detector for Axle

Applicable scope

It is suitable for the surface magnetic particle testing of locomotive and rolling stock axles

Features and Technical parameters

1.      Longitudinal magnetization coil with independent intellectual property rights of the double helix locking opening and closing coil, guarantee the magnet coil contact not fever ,  magnetizing effect is stable, the coil have long service life

2.      Adopted the variable frequency drive to control axle rotation, speed can be set freely and realize dynamic commutation

3.      Adopting attenuation measure of magnetization current’s difference value, It can  demagnetize automatically and has little residual field when shut off the power.

4.      Magnetizing current controlled by SCR module of voltage regulation,It can be adjusted at any time

5.      Bed struct integration design, without special foundation, easy installation and maintenance

6.      Magnetization mode: resultant magnetic field

7.      The peak value current of circular magnetization:0-4800A continuously adjustable

8.      Longitudinal magnetization MMF: 0-28000AT continuously adjustable.

9.      Magnetic field intensity on detection surface: ≥2400(3200)A/m

10.  The maximal distance of circular magnetic heads:2650mm

11.  The maximal weigh of mobile support work-piece: 1500kg

12.  Demagnetization method: in situ decay

13.  Detecting sensitivity: Clearly displays the artificial defect of A1 standard test piece 15/50（7/50）

14.  Residual Field: ≤0.3mT