Science leh technology leh industrial production lama hmasawnna chak tak a awm tak avangin company te chuan material performance atan mamawh an nei sang zawk a, an sang zawk bawk. Mahse, tuna metallurgical technology hman mek hian thil ṭha famkim a pe thei lo. Chutih rual chuan hmanrua chi hrang hrangte pawhin an siam chhuah laiin chhiatna chi hrang hrang an siam chhuak dawn a, chungte chu welding cracks, incomplete penetration, welding leakage leh quality problems dang, internal surface crack, peeling, pulling wire, scratch, khur, bumps, etc. te an ni a, spots, corrosion leh defect dang te, heng internal debris, foreign objects-a residual debris te, extras-a awmte ang bawkin Pawl pum pui a tichhia thei a, hmanraw lian tak tak leh mimal accident a thlen thei a, enterprise leh hnathawkte tan hlohna lian tak a thlen thei bawk.
Chuvangin, he thupuiah hian non-destructive testing hlutna leh a pawimawhzia hi a pawimawh hle.
1. 1.1. Eddy Tuna Welded Pipes te test mek a ni.
Industrial welded stainless steel pipe hi industrial field-ah te, fluid transportation, heat exchanger, leh aerospace-ah te hman a ni nasa hle. Chuvangin, weld-ah hian crack, crack, unwelded welding leh defect dang a awm tur a ni lo va, a chung lamah chuan scratch, crushing leh defect dang tam lutuk a awm tur a ni lo. Welded pipe hian production line-a siam chhuah chhunzawm zel leh rang taka siam chhuah theihna characteristic a neih avangin, welded pipe quality chu manual post-inspection hmang chauha guarantee a harsa hle. Eddy current flaw detection method hian fast detection speed a thatna a nei a, workpiece chunglam nen couple a ngai lo va, detection sensitivity sang tak a nei bawk a, hei hi quality control leh welded pipe siam chhuahna quality inspection atan a tha hle.
2. Eddy current flaw detector hnathawh dan .
Online eddy current flaw detection of the steel pipe production line tih hian production line-a production process nena inmil flaw detection a kawk a, chu chu production process quality control nan an hmang ber a Hemi chungchangah hian users ten requirement an neih chuan, a tlangpuiin, . HAGAO Tech (Seko Machinery) hi a hmangtute tan a ni a, online eddy current flaw detection hmanga thuam vek a ni. A thatna chu: space humhim leh process step awlsam zawka siam a ni. A chhiatna a hriat chuan instrument chuan automatic in a alarm thei a, a scratched emaw unfused na hmun chu a mark thei bawk.
3. Standard sample tube thlan dan .
Detection result chu comparison sample-a artificial defect leh natural defect display signal tehkhin dan atanga teh a ni. Comparison sample-a steel pipe leh enfiah tur steel pipe-ah chuan nominal size leh chemical composition inang chiah chiah a awm tur a ni. Surface state leh heat treatment state pawh a inang vek a, chu chu electromagnetic property inang chiah an nei tur a ni.
Welded pipe siam chhuahnaah chuan standard-in a tarlan notch size nena inmil test machine standard sample tube hmuh a awlsam hle. He standard sample tube hian weld-a open crack chauh ni lovin, crack emaw dark crack leh unfusion emaw a keng tel bawk. Heng defects te hi continuous leh slow tak tak an ni. Transitional, slow-change injury emaw natural injury emaw tia sawi thin. Chuvangin, welded pipe section pakhat, notch size mamawh phuhruk thei leh natural flaws awmna chu eddy current flaw detection atana standard sample tube atan thlan theih a ni.
4. Alarm hmanrua .
Online flaw detection lai hian over-standard defect hmuh a nih chuan defect signal amplitude chu alarm area-ah a lut a, chu instrument chu automatic-in alarm a ni ang. Instrument hian alarm logic output circuit a nei a, chu chuan pawn lam sound-light alarm nen a inzawm thei a, alarm signal a thawn chhuak thei bawk. Welded pipe chhia chu automatic emaw manual emaw inspection hmangin a then theih a, chu chuan welded pipe quality control tumna a nei thei a ni.
