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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(shù)指標(biāo)： 1. 縱向磁化線圈采用自主知識產(chǎn)權(quán)的雙螺旋鎖緊開合線圈，保證磁化線圈接點不發(fā)熱不打火，線圈通電可靠，磁化效果穩(wěn)定，線圈壽命長 2. 采用了變頻傳動裝置來控制車軸旋轉(zhuǎn)，轉(zhuǎn)速可自由設(shè)定并實現(xiàn)動態(tài)換向，便于觀察磁痕 3. 采取磁化電流不等值衰減措施，關(guān)斷電源時自動退磁，被檢測工件剩磁小 4. 采用了先進(jìn)的可控硅調(diào)流系統(tǒng)，磁化電流連續(xù)可調(diào) 5. 床式一體化設(shè)計，無須特殊基礎(chǔ)，安裝維修簡便 6. 磁化方式：復(fù)合磁場 7. 周向磁化峰值電流：0-4800A連續(xù)可調(diào) 8. 縱向磁化磁動勢：0-28000AT連續(xù)可調(diào) 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(biāo)準(zhǔn)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
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