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JWH-A型環(huán)類零件磁粉探傷機適用范圍：適應于鐵路軸承內外圈等環(huán)類零件專用磁粉探傷檢測特點及技術指標：1.周向磁化采用中心導體法
| JWH-A型環(huán)類零件磁粉探傷機 適用范圍： 適應于鐵路軸承內外圈等環(huán)類零件專用磁粉探傷檢測 特點及技術指標： 1. 周向磁化采用中心導體法，零件內、外表面縱向磁化采用感應法，保證磁化效果穩(wěn)定 2. 一體化復合磁化裝置中心導體采用可伸縮結構，便于放置工件 3. 檢測工件可自動360°全回轉，并可進行動態(tài)換向，便于觀察磁痕 4. 磁化電流由可控硅調壓模塊控制,電流大小可根據(jù)環(huán)類零件的長短及直徑大小隨時調整，以滿足不同零件的探傷要求 5. 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 6. 床式一體化設計，無須特殊基礎，安裝維修簡便 7. 磁化方式：復合磁場 8. 輸入功率：40kW 9. 周向磁化峰值電流：0-2500A連續(xù)可調 10. 縱向磁勢0~8000AT連續(xù)可調 11. 工件寬度：400mm 12. 工件回轉直徑：400mm 13. 工件重量：35kg 14. 退磁方式：原位衰減法 15. 檢測靈敏度：清晰顯示A1型標準試片15/50（7/50）的人工缺陷 16. 剩磁：不大于0.3mT 17. 主機外形尺寸：2.1m×1.0m×1.2m 18. 主機總重量：500kg JWH-A Magnetic Particle Flaw Detector for ring parts Applicable scope For ring parts of railway train magnetic particle testing. Features and Technical parameters 1. Circumferential magnetization adopts center conductor method, longitudinal magnetization adopts inductive method for inner surface and outer surface of the part. magnetizing effect is stable 2. The central conductor has a retractable structure，Easy to place workpiece 3. Workpiece can all rotation 360°,ａnd Dynamic reversing,easy to observe the magnetic particle indication 4. Magnetizing current controlled by thyristor voltage regulation module,It can be adjusted at any time according to the length and the diameter of the parts 5. Adopting attenuation measure of magnetization current’s difference value, It can demagnetize automatically and has little residual field when shut off the power. 6. Bed struct integration design, without special foundation, easy installation and maintenance 7. Magnetization mode: resultant magnetic field 8. Input power: 40kW 9. The peak value current of circular magnetization: 0-2500A continuously adjustable 10. The peak value current of longitudinal magnetization: 0-3200A continuously adjustable 11. Maximum workpiece width: 400mm 12. Maximum workpiece rotating diameter:400mm 13. Maximum workpiece weight: 35kg 14. Demagnetization method: in situ attenuation method 15. Detecting sensitivity: Clearly displays the artificial defect of A1 standard test piece 15／50 16. Residual Field: ≤0.3mT 17. Mainframe exterior size: 2.1×1.0×1.2m 18. Mainframe weight: 500kg
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