Mfundo Yofunika: Pambuyo pa ferromagnetic zida ndi ma workpieces ndi maginito, chifukwa cha kukhalapo kwa discontinuities, mizere ya maginito pamtunda ndi pafupi ndi malo ogwirira ntchito imasokonezeka, zomwe zimapangitsa kuti maginito atayike. Maginito particles ntchito pamwamba pa workpieces ndi adsorbed, kupanga zooneka maginito zizindikiro pansi kuunikira koyenera, potero kusonyeza malo, mawonekedwe, ndi kukula discontinuities.
Kugwiritsa ntchito ndi malire:
Kuyang'ana kwa maginito tinthu ndikoyenera kuzindikira ma discontinuities pamtunda ndi pafupi ndi zinthu za ferromagnetic zomwe ndizochepa kwambiri ndipo zimakhala ndi mipata yopapatiza (monga ming'alu yomwe imatha kuzindikirika kutalika kwa 0.1mm ndi m'lifupi mwa ma micrometer) omwe ndi ovuta kuwazindikira. zowoneka; Ithanso kuyang'ana zopangira, zinthu zomalizidwa pang'ono, zida zomalizidwa, ndi zida zogwirira ntchito, komanso mbale, mbiri, mapaipi, mipiringidzo, zida zomata, zida zachitsulo, ndi zida zachitsulo. Zolakwika monga ming'alu, inclusions, hairlines, mawanga oyera, mapindikidwe, zotsekera ozizira, ndi looseness angapezeke.
Komabe, kuyezetsa kwa tinthu tating'onoting'ono sikungathe kuzindikira zida zachitsulo zosapanga dzimbiri za austenitic ndi zowotcherera ndi ma elekitirodi osapanga dzimbiri a austenitic, komanso sizingazindikire zida zopanda maginito monga mkuwa, aluminiyamu, magnesium, titaniyamu, ndi zina zambiri. , ndi delamination ndi kupindika ndi ngodya zosakwana 20 ° kuchokera workpiece pamwamba.
Penetrant Testing (PT)
Mfundo : Pambuyo pamwamba pa gawolo ndi yokutidwa ndi olowera okhala ndi fulorosenti kapena utoto utoto, pansi pa zochita za chubu capillary, pakapita nthawi, olowera akhoza kulowa mu pamwamba kutsegula zilema; Pambuyo pochotsa owonjezera olowera pamwamba pa gawolo, wopanga mapulogalamuwa amagwiritsidwa ntchito pamwamba pa gawolo. Momwemonso, pansi pa zochita za capillary, woyambitsayo adzakopa wolowa mkati mwachilema, ndipo wolowerayo adzabwereranso ku woyambitsa. Pansi pa gwero lina la kuwala (ultraviolet kapena kuwala koyera), zizindikiro za olowera pachilema zimazindikirika (chikasu chobiriwira cha fulorosenti kapena chofiira chowala), potero kuzindikira morphology ndi kugawa mawonekedwe a chilemacho.
Ubwino ndi malire:
Kuyesa kolowera kumatha kuzindikira zinthu zosiyanasiyana, kuphatikiza zitsulo komanso zopanda zitsulo; Maginito ndi zinthu zopanda maginito; kuwotcherera, kupangira, kugudubuza ndi njira zina zopangira; Imakhala ndi chidwi chachikulu (imatha kupezeka kuti ndi 0.1 μ M chilema chachikulu, chokhala ndi mawonekedwe owoneka bwino, ntchito yabwino, komanso mtengo wotsika wozindikira.
Koma amatha kuzindikira zolakwika ndi kutseguka pamwamba ndipo si oyenera kuyang'ana workpieces zopangidwa porous ndi lotayirira zipangizo ndi workpieces ndi pamwamba akhakula; Kugawika kwapamwamba kokha kwa zolakwika kungadziwike, zomwe zimapangitsa kuti zikhale zovuta kudziwa zakuya kwenikweni kwa zolakwika, zomwe zimapangitsa kuti zikhale zovuta kuyesa zowonongeka. Zotsatira zowunikira zimakhudzidwanso kwambiri ndi wogwiritsa ntchito.
Imelo:oiltools14@welongpost.com
Grace Ma
Nthawi yotumiza: Nov-14-2023
