Post-weld isiri-inoparadza yekuongorora yekuongorora

Nzira dzisiri dzekuparadza dzekuyedza dzinowanzoshandiswa

1.UT (Ultrasonic Test)

--Nheyo: Mafungu eruzha anopararira mune izvo zvinhu, kana paine kusvibiswa kweakasiyana density muchinhu, masaisai ekurira anozoratidzwa, uye piezoelectric mhedzisiro yechinhu chekuratidzira ichagadzirwa pachiratidziro: chinhu chiri muprobe chinogona kushandura. simba remagetsi mumagetsi emagetsi, uye inverse effect, simba remagetsi rinoshandurwa kuva simba remagetsi Ultrasonic longitudinal wave uye shear wave / shear wave, probe yakakamurwa kuva yakananga probe uye oblique probe, yakananga probe inonyanya kuona zvinhu, oblique probe kunyanya. inoona welds

--Ultrasonic yekuongorora michina uye matanho ekushanda

Zvishandiso: Ultrasonic flaw detector, probe, test block

Maitiro:

Brush coated couplanti.Detect.Ongorora zviratidzo zvinoratidzwa

--Ultrasonic yekuona maitiro

Matatu-dimensional positioning akarurama, achibvumira chete kubva kudivi rechikamu kushanda, kuona ukobvu hwehombe - kusvika ku2 metres kana kupfuura, inogona kuona kiyi isingaenderere mberi - flat type discontinuous, midziyo iri nyore kutakura, inoda kukanganiswa kweanoshanda level. yakakwira, ukobvu kazhinji kunodiwa kwete pasi pe8mm, yakatsetseka pamusoro

——Munyu wepaste unoshandiswa kuona chikanganiso che ultrasonic wakakwira zvakanyanya, uye unofanirwa kucheneswa nekukasika mushure mekuona kukanganisa.

Iyo paste inoshandiswa mu ultrasonic flaw yekuona mune inorema indasitiri indasitiri ine yakanyanya munyu yemukati, uye kana isina kucheneswa nekufamba kwenguva, ichava nekukanganisa kukuru kwemhando yeanti-corrosion coating.

Kune yakajairwa anti-corrosion coatings, basa rayo guru nderekuparadzanisa mhepo kana mvura (electrolyte) kubva panzvimbo yakachengetedzwa, asi kuzviparadzanisa uku hakusi mhedziso, mushure menguva yenguva, nekuda kwekumanikidzwa kwemhepo, mhepo kana mvura (electrolyte) icharamba ichiripo. pinda panzvimbo yakadzivirirwa, ipapo nzvimbo yakadzivirirwa ichabudisa kemikari inopindirana nehunyoro kana mvura (electrolyte) mumhepo, ichisvibisa nzvimbo yakachengetedzwa.Munyu unogona kushandiswa sezvinokonzeresa kukurumidza kuita ngura, uye kana munyu wakakwira, ndiko kukurumidza kwekuora.

Muindasitiri inorema indasitiri, pane kuvhiyiwa - ultrasonic kutadza kuona, kushandiswa kwepaste (couplant) munyu kwakakwira zvakanyanya, munyu wemunyu wakasvika kupfuura 10,000 μs / cm (iyo indasitiri inowanzoda munyu weiyo abrasive ishoma. kupfuura 250 μs / cm, mvura yedu yemudzimba munyu kazhinji inenge 120 μs / cm), munyaya iyi, kuvakwa kwependi, iyo yekuputira icharasikirwa ne-anti-corrosion effect munguva pfupi.

Tsika yenguva dzose ndeyekusuka tsvina yekuona kukanganisa nemvura yakachena pakarepo mushure mekuona kukanganisa.Nekudaro, mamwe mabhizinesi haabatanidze kukosha kune anti-corrosion, uye haachenese paste mushure mekuona kukanganisa, zvichikonzera kunetsa kubvisa chikanganiso chekuona paste mushure mekuoma, izvo zvinokanganisa zvakananga anti-corrosion kunaka kwejasi.

Heino seti yedata data:

1. Data yemunyu yemvura yekuona kukanganisa

-- Nheyo: kupararira uye kunyura kwemwaranzi - kupararira mumidziyo kana welds, kutorwa kwemwaranzi nemafirimu.

Ray absorption: zvinhu zvakakora uye zvakakora zvinotora mirazvo yakawanda, zvichikonzera kushomeka kwekunzwa kwefirimu uye mufananidzo wakachena.Pane zvinopesana, mufananidzo wacho wakasviba

Discontinuities nemufananidzo mutema zvinosanganisira: slag kuisirwa \ gomba remhepo \ undercut \ crack \ isina kukwana fusion \ isina kukwana kupinda

Discontinuities nechena mufananidzo: Tungsten kuisirwa \ spatter \ overlap \ yakakwirira weld kusimbisa

——RT bvunzo oparesheni matanho

Ray source nzvimbo

Isa mapepa kune reverse side ye weld

Exposure zvinoenderana nekukanganisa kwekuona process parameters

Kuvandudza firimu: Kuvandudza - kugadzirisa - Kuchenesa - kuomesa

Kuongororwa kwefirimu

Open report

—-Ray sosi, chiratidzo chemhando yemufananidzo, kusviba

Line source

X-ray: iyo transillumination ukobvu kazhinji isingasviki 50mm

High simba X-ray, accelerator: transillumination ukobvu kupfuura 200mm

γ Ray: ir192, Co60, Cs137, ce75, nezvimwewo, ine transillumination ukobvu kubva pa8 kusvika 120mm

Linear mufananidzo mhando chiratidzo

Hole mhando yemhando yemhando yechiratidzo inofanira kushandiswa kuFCM yebhiriji

Hutema d=lgd0/d1, imwe indekisi yekuongorora kunzwa kwemufirimu

X-ray radiographic zvinodiwa: 1.8 ~ 4.0;γ Radiographic zvinodiwa: 2.0 ~ 4.0,

——RT midziyo

Ray source: X-ray muchina kana γ X-ray muchina

Ray alarm

Loading bag

Chiratidzo chemhando yemufananidzo: rudzi rwemutsara kana rudzi rwepasi

Meta yerima

Muchina wekugadzira firimu

(ovheni)

Rambi rekuona firimu

(Imba yekuratidzira)

——RT zvinhu

Inoshanda kune zvese zvinhu

Zvinyorwa (negatives) zviri nyore kuchengetedza

Radiation kukuvara kwemuviri wemunhu

Directivity ye discontinuities:

1. sensitivity kune discontinuities inofambirana negwara rairo

2. kusanzwa kune discontinuities inopindirana nepamusoro pezvinhu

Mhando ye discontinuity:

Inonzwa kune matatu-dimensional discontinuities (senge pores), uye zviri nyore kupotsa kuongororwa kwendege discontinuities (senge isina kukwana fusion uye makatsemuka) Iyo data inoratidza kuti chiyero chekuonekwa kweRT yekutsemuka i60%

RT yezvakawanda zvikamu zvichawanikwa kubva kumativi ese

Zvisina kunaka zvichaongororwa nevashandi vane ruzivo

3.mt (magnetic particle inspection)

-- Nheyo: mushure mekunge chigadziriso chaitwa magineti, iyo magineti kuvuza munda inogadzirwa painomira, uye iyo magineti particle inoshambadzirwa kuti igadzire iyo magineti trace kuratidza.

Magnetic field: isingaperi magineti uye munda wemagetsi unogadzirwa neanogara magineti

Magnetic particle: yakaoma magineti particle uye wet magnetic particle

Magnetic particle ane ruvara: dema remagineti particle, red magineti particle, chena magineti particle

Fluorescent magineti poda: inovhenekerwa ne ultraviolet mwenje mukamuri ine rima, ine yero yegirini uye ine yakanyanya kunzwisiswa.

Directivity: discontinuities perpendicular to the direction of the magnetic line of force ndiyo inonyanya kunzwa

——Nzira dzemagineti dzakajairika

Longitudinal magnetization: nzira yejoko, coil nzira

Circumferential magnetization: nzira yekubata, yepakati conductor nzira

Magnetizing current:

AC: kunzwisiswa kwakanyanya kune discontinuities

DC: kunzwisiswa kwakanyanya kune pedyo nepamusoro discontinuities

--Magnetic particle yekuongorora maitiro

Kuchenesa workpiece

Magnetized workpiece

Isa magnetic particle paunenge uchiita magnetizing

Dudziro uye kuongororwa kwemagineti trace

Kuchenesa workpiece

(demagnetization)

——MT zvinhu

Kunzwa kwakanyanya

inoshanda

Nzira yejoko nemimwe michina iri nyore kufamba

Pedyo nepamusoro discontinuities inogona kuonekwa kana ichienzaniswa nekupinda

Mutengo wakaderera

Inongoshanda kune ferromagnetic zvinhu, zvisingashande kune austenitic Stainless simbi, aluminium alloy, titanium alloy, mhangura nemhangura alloy.

Inonzwa kune iyo yekuputira pane workpiece pamusoro.Kazhinji, ukobvu hwekuputira haufanire kudarika 50um

Dzimwe nguva zvikamu zvinoda demagnetization

4.pt (kuongorora kwemukati)

--Simboti: shandisa capillarity kusveta kumashure iyo inopinda yasara mukusaenderera mberi, kuitira kuti inopinda (inowanzo tsvuku) uye yekufungidzira mvura (inowanzo chena) inosanganiswa kugadzira chiratidziro.

——Penetrant inspection type

Zvinoenderana nerudzi rwemufananidzo wakagadzirwa:

Ruvara, chiedza chinooneka

Fluorescence, UV

Zvinoenderana nenzira yekubvisa yakawandisa inopinda:

Kubviswa kwesolvent

Mvura yekugeza nzira

Post emulsification

Nzira inowanzoshandiswa mukugadzirwa kwesimbi ndeye: colored solvent kubvisa nzira

——Matanho ekuedza

Kuchenesa workpiece: shandisa yekuchenesa mumiririri

Isa penetrant uye chengeta iyo 2 ~ 20min.Chigadzirise zvinoenderana neambient tembiricha.Kana nguva ipfupi, iyo inopinda isina kukwana, yakarebesa kana tembiricha yakanyanya, iyo inopinda ichaoma Iyo inopinza ichachengetwa yakanyorova mukati mebvunzo.

Bvisa yakawandisa inopinda neajenti yekuchenesa.Zvinorambidzwa kupfira mumiririri wekuchenesa zvakananga pane workpiece.Pukuta nemucheka wakachena kana bepa rakanyikwa neinopinza kubva kune imwe nzira kudzivirira kubvisa iyo inoregedza kupinda kuburikidza nekuchenesa.

Isa yunifomu uye yakatetepa dhizaini yegadziriso mhinduro ine nguva yekupfapfaidza inosvika 300mm.Yakanyanya gobvu yekuvandudza mhinduro inogona kukonzera kusaenderera mberi

Tsanangura uye ongorora discontinuities

Kuchenesa workpiece

——PT zvinhu

Kuvhiya kuri nyore

Zvesimbi dzese

Kunzwa kwakanyanya

Very nyore kufamba

Kuonekwa kwenzvimbo yakavhurika discontinuities chete

Kuderera kwebasa kushanda zvakanaka

High pamusoro pekukuya zvinodiwa

kusvibiswa kwezvakatipoteredza

Kugadziriswa kwekuongororwa kwakasiyana-siyana kune kukanganisa nzvimbo