Stainless steel industrial welded pipe tha tak nih theihna tur thil pawimawh ber pakhat chu weld quality tha zawk neih hi a ni. A chhan chu engtin nge weld quality hian welded pipe hian post-process test a tuar thei em tih a hriat theih. Post-process hman tlanglawn tak takte chu: flattening, reducing diameter, punching leh bending, etc. Weld quality a chak tawk loh chuan scrap tam tak a thlen ang a, a man pawh nasa takin a tisang ang.
automatic stainless steel pipe siam chhuahna line hi a lar hle a ni. Tunlai production workshop-ah chuan Manual monitoring hian darkar 24 chhunga monitoring-ah hian leakage emaw perforation emaw a awm dawn lo tih a tichiang thei lo. Chuvangin, client thenkhat chuan he phenomenon hi an lo sawi tawh a ni. Preventive surveillance angin, . Hangao Tech (Seko Machinery) chuan weld quality enfiahna atana inhlan instrument dah turin a rawt ang. Instrument monitor chuan weld chhiatna a hriat chuan buzzer chuan hnathawkte chu an enkawl emaw, an mark emaw tura hriattir turin alarm a ri ang.
Weld-te tana non-destructive testing method hman tlanglawn tak takte chu:
(1) Radiographic enfiah dan (RT) 1.1.
Tunah chuan radiographic flaw detection method hman lar tak chu (x, γ) ray sources atanga penetrating rays te chu weld chhunga lutin film photosensitive siam nan a hmang a, weld-a defect image chu processed radiographic negative-ah a lang bawk. A bul berah chuan pores, slag inclusions, cracks leh weld-a incomplete penetration te ang chi defects hmuh nan hman a ni.
(2) Ultrasonic flaw hriat theihna (UT) .
Piezoelectric transducers hmangin pulse vibration chu instantaneous electrical excitation hmangin a lo chhuak a, chu chu metal-ah acoustic coupling medium hmangin ultrasonic wave a lo awm a ni. Ultrasonic wave te hian propagation laiin defect an tawh chuan an reflect ang a, transducer ah an kir leh ang a, chutah chuan acoustic pulse te chu electrical ah an chantir ang a, chu chu workpiece chhunga defect awmna hmun leh a nasat dan chu signal amplitude leh propagation time tehna hmangin a teh theih ang. Ultrasonic hian radiographic flaw detection aiin sensitivity a nei sang zawk a, a flexible a, a awlsam a, cycle tawi, man tlawm, efficiency sang tak a nei a, mihring taksa tan pawh a hlauhawm lo. Mahse, a chhiatna pawh a awm ve tho. Entirnan, defects lantir hi a awlsam lo hle a, weld defects rorelna pawh a dik lo a, chu chu inspection personnel-te thil tawn leh technical lama an thiamna chuan nasa takin a nghawng a ni.
(3) A luhchilh theihna (indenetrating flaw detection (PT) .
Pigment emaw fluorescent powder awmna penetrant chu weld enfiah tur surface-ah spray emaw coated emaw a nih chuan, liquid-a capillary action chu weld-a a chhunga lut tur adsorbed surface opening adsorbed-a lut penetrant chu hman a ni a, chutiang chuan defect display traces chu en theih a ni. Liquid penetrant inspection hi hman ber a ni: groove surface, carbon arc gouging hnua gouging surface en emaw, weld defect a chhuah hnu emaw, hmanrua hmanga surface lakchhuah leh inconvenient magnetic particle inspection part a surface opening defect te enfiah a ni.
(4) Magnetic flaw hriat theihna (MT) .
Magnetic powder, magnetic tape emaw magnetic field tehna hmanrua dang emaw hmanga defect record dan leh magnetic materials-a surface leh near-surface defects hmanga radiance rate-a inthlak danglamna thlen thei, leh magnetization laiin surface-a leakage magnetic field a awm thin. Magnetic flaw detection hi hman a ni ber a, chu chu: lei chunglam enfiah leh near-surface defects enfiah a ni. Penetration detection method nen khaikhin chuan he method hian detection sensitivity sang leh speed sang tak a nei mai bakah a chung lama thuk takah defect a awm tih a hmuchhuak thei bawk.
(5) Hriat dan dang .
Detection dan dangte chu: workpiece lian tak takte metallographic analysis, ferrite content inspection; spectral thlirletna; portable hardness test a ni a; Acoustic emission test, etc.
