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铸件磁粉探伤作业指导书MAGInspectionprocess/磁粉探伤检测程序1.Readthevolumeofsettledparticles（Theparticlevolumeshouldbemorethan0.5mL）.确认上次沉积的磁粉量(≥0.5毫升),不达要求的加磁粉调节。Figure1-Step12.Stirthebathmanuallytoredistributetheparticlesthroughoutthesuspension（Allow30minutesagitationtimetoensurethattheparticlesareinsuspension）.开机搅动磁液使磁粉均匀分布（将磁液搅动3-5分钟确保磁粉处于悬浮状态）Figure2-Step23.Positionthepartinthecoil.把产品放置在线圈内。将线圈通电,并将悬浮液喷洒到产品上Figure3–Step34.Applysuspensiontothepartandcurrenttothecoil将悬浮液涂到零件上，并将线圈通电。Figure4–Step45.Bathethepartwiththesuspensionfromdifferentorientations.从不同的方向将磁悬液喷洒到产品上,让其充磁。Figure5-Step5Figure6-Step5步骤56.Checktheentirepartforindications.Verycarefullycheckthein-gate,riser,pocket,andpinbore.在萤光灯下检查整个产品，发现裂纹处用彩色粉笔标出位置，隔离作废品处理。Figure7-Step6步骤67.Demagnetizethesample按退磁按钮让产品退磁8.Addthesuspensionto100ml,andallowthesuspensiontosettlefor0.5hours.将磁悬液加到磁悬液测试管,加至100毫升,静置0.5小时Figure8-Step8步骤89.下一次检测之前检查磁粉量.Checkthevolumeofsettledparticles.Figure9-Step9步骤92012—01—26发布2012—03—15实施编制：金荥审核：王才波批准：张莉琴