Infomesen blong Testing
Wael testing hemi wan servis blong testem ol join we ol man mekem long wael (welding) long ol metal paet, plate, piep, tyub mo struktur, mo ZHONGXI Testing hemi providim servis ia olsem wan laboratwa blong testing blong tid paet (third-party). Ol wael join yu findim long ol ship, bridj, buildin, pressa vessel, oil mo gas piep, automobil, railing karjin, mo plante ol industrie/C idia, mo testing blong ol join ia hemi impotan tumas from hemi checkem se join i strong tumas, i no gat krak, i no gat hole insaed, mo i mekem wok gut long saed blong sefti mo kyaliti.
Purpos blong wael testing hemi fo faendaot ol defek olsem krak, porositi (hol hol smol), slag inklusen, no penetraten gud, ova lap no gud, distorsen, mo soft spat long hat-affekted zon (HAZ), so se man save fixem o rejectem join bifol yu putum long servis. Teknik we ol man yusum inklud non-destructive testing (NDT) olsem visual inspeksen (VT), dye penetrant testing (PT), magnetic particle testing (MT), ultrasonic testing (UT), radiographic testing (RT), mo eddy current testing, mo olsem destructive testing olsem tensail test, bend test, impact test (Charpy V-notch), hardness test, makro mo mikro egzaminesen, mo kemikal analisis blong weld metal mo bas metal.
Testing proses nomo hemi stat wetem sapel rimot, ol man luk luk join, afta ol man posem sapel mo preparem ol specimen, den ol man mekem test acording long prodak taep mo standad we i aplike, mo las wan ol man raetaem ripot wetem ol rezolt, ol foto, mo konklusen. Ol koa paramita ol man measurem inklud tensail strength, yield strength, elongasen, bend performans, impact energi long temperature mo difren, hardness valyu long cap, rut mo HAZ, penetraten profil, weld geometri, thickness blong join, mo prezans blong internal defek olsem krak o lack of fusion.
Test i save wokem long sapel blong prodak finis, long prodaksen sapel (prodaksen test kupon), long prosidua kyalifikesen blong welda, mo long investigesen afta defek i kamaot. Man save yusum rezolt fo validatem welding proses, chekem se welda i wok acording long WPS (welding prosedua spesifikesen), mo decidem wefa join i pasem akseptans kriteriya we standad o klient i givim.
Skop blong Testing
- Butt join blong stel plate (S235JR, S355JR, S355J2) we ol man wael wetem SMAW, GMAW o SAW
- Fillet join blong struktur stel long bridj, buildin fram mo railing karjin
- Piep join blong karbon stel piep (API 5L Grade B, X52, X60) long oil mo gas industri
- Piep join blong stainless stel piep (304, 304L, 316, 316L, 321) long food, famasi mo kemikal plant
- Wael blong duplex stainless stel (2205, 2507) mo super ostenitik stel
- Wael join blong aluminiyam aloy (5083, 6061-T6, 6082) we ol man mekem wetem GTAW o GMAW, inklud MIG wael blong aluminiyam sheet
- Wael blong aluminiyam-litiyam aloy mo magnesiyam aloy (AZ31, AZ61)
- Wael blong titaniyam aloy (TA1, TA2, TC4) long aespas mo medikal aplikesen
- Wael blong nickel-baes aloy (Inconel 600, 625, 718, Monel 400) long hae-tempa plant
- Wael blong cappa aloy mo cappa-nikel (90/10, 70/30 CuNi) long ship mo heat ekskensa tube
- Pressa vessel wael join (Q345R, Q245R, SA516 Gr.70) blong boila mo presa tank
- Wael blong cast iron repae (HT200, HT250, QT450) wetem nickel electrode
- Wael blong galvanais stel, Z-coated sheet, mo dual-phase-high-strength stel (DP590, DP780) long automobil bodi
- Spot wael mo resistance seam wael blong autobody sheet metal
- Stad wael (stud welding) blong sher konecta long struktur wok
- Submerged arc wael (SAW) blong thick plate long shipbuildin mo hevi machinari
- Friction stir wael (FSW) join blong aluminiyam panel mo railway karjin
- Laser wael mo laser-hybrid wael blong thin sheet mo taytube asembli
- Electron beam wael join blong hae-valyu komponent long aespas mo tyubin
- TIG/GTAW wael blong thin-wall stainless piep mo tibong asembli
- Overlay weld mo cladding (stainless o Inconel overlay long karbon stel) blong korosen-resistant servis
- Wael blong reinfosemnt stel ba (HRB400, HRB500) spais join mo butt join long constraksen
- Repea wael afta grinding o machining blong defekt pat, inklud removal depth verifikesen
- Wael blong stel tupe mo box seksen (SHS, RHS) long stel struktur
- Weld consumabel sapel test blong electrode, wae mo flux (E7018, ER70S-6) acording long prodaksen standad
- Wael join blong offshore platform, jacket leg mo risa pipa blong subsea servis
- Wael blong boiler tube, superheata tube mo heat exkensa tube
- Wael blong tank bottom plate mo storage tank shell long petrokemikal fasiliti
- Wael blong railway rail, bogie kas mo wael blong crane girder long hevi lod aplikesen
- Wae testing blong pipeline girth wael long direk-field kondisen mo long shop kondisen
Ol Common Question
Long haemas dei wael testing bae i tekem?
Turnaround nomo hemi bitwin 7 go 15 woking dei, mo i dipen long namba blong test item mo sapel taep. Visual inspeksen, hardness mo PT/MT save finis fastaem, long 3 go 5 dei; radiografi, tensail, bend mo impact test save tekem 7 go 10 dei from sapel i nidim machining; makro/mikro egzaminesen mo kemikal analisis save adum smol mo taim. Sipos klient nidim fastaem servis, ol injinia save diskusim ekspedait aranjemen.
Long haemach wael testing i kostem?
Pais i dipen long namba mo taep blong test item. Non-destructive item olsem PT o hardness i kos les long destructive item we i nidim specimen machining mo instrument taem, olsem impact test o mikro egzaminesen. Fo takeim exak pais, klient save contactem injinia, givim info blong prodak, material, join taep, test item we i nidim, mo namba blong jion, mo tim bae provaidem kwotesen bifol wok i stat.
Wael testing i inklud wan test item?
Item i dipen long prodak taep, material mo standad we i aplike. Nomali set i inklud visual inspeksen, dimensinal masu, NDT (PT, MT, UT, RT), tensail, bend, impact, hardness traverse, makro egzaminesen mo kemikal komposisen. Sipos klient no save which item i nidim, injinia save helpem selectem akording long aplikesen — olsem pressa vessel nidim moa impact mo RT, wael automobil sheet moa spot test mo hardness, mo pipeline girth wael moa PAUT o RT plus tensail.
Haemach sapel man nidim preparem blong wael testing?
Fo destructive test, man nidim sapel plate o kupon se i representem prodaksen kondisen — nomali 100 go 500 gram fo smol set, mo fo ful prodaksen test plate i save go bitwin 300 mo 500 mm long plate seksen inklud bas metal mo wael. Fo NDT, prodak finis o jion insaed i save testem direktem without katan, so man nidim only akses long join mo klin surefis. Fo kemikal analisis, smol chip o spaek we i save tekem from drilling i tale, olsem 5 go 20 gram, i inaf.
Wanem defek ol man save faendaot long wael testing?
Defek taep i inklud hot krak mo cold krak, porositi (gas hole), slag inklusen, lack of side-wall fusion, lack of penetraten, undercut, ova lap, spata, distorsen, hardening o softening insaed HAZ, mo hydrogen-induced kraking long high-strength stel. Ol defek ia ol man klassifai acording long standad akseptans kriteriya, mo ripot i givim size, lokesen mo klas blong evri defek we instrument i detektem.
Ol Aplikesen Scenario
Long constraksen industri, wael join blong stel fram, bridj seksen, crane girder mo reinfosemnt spais i karei hevi lod, so tensail, bend, impact mo UT inspeksen i impotan fo confirmem se join i strong mo i no gat internal krak. Testing long scenario ia save wokem long prodaksen kupon mo long instalaeis jion insaed prokekt, mo ol rezolt helpem injinia decidem wefa join i pasem desen requirement.
Long pressa vessel, boila mo storage tank industri, wael join i fesem pressa mo tempa, mo kombinisen blong RT o UT, hardness traverse, impact test long design tempa, mo hydrostatic pressa test i save validatem integriti blong shell, head mo nozzle jion. Stainless o duplex jion long kemikal plant adisen nidim ferrite measurement mo korosen test from media i aggresif.
Long shipbuilding mo offshore industri, thick plate submerged arc seam mo girth jion long risa mo jacket structa i nidim UT, TOFD o PAUT fo volumetric kaverij, adisen wetem CTOD fracture tafnes fo thick sekasen. Pipeline girth wael long oil mo gas fiel save skanem wetem X-ray crawler o phased array, mo tensail mo bend specimen from prodaksen wael fo evri welda kwalifikesen.
Long automobil mo transport industries, spot wael mo laser wael blong bodi sheet mo aluminiyam struktur i nidim peel, shear, hardness mo metalografik egzaminesen fo nugget saed mo penetrasen kontrol. Fatigue test i relevant tumas long railway karjin, friction stir jion mo trailer asembli from cyclic loading sicos, mo residual stress measurement helpem kontrol distorsen long thin-wall komponent.
Ol Testing Item
- Visual inspeksen (VT) — hemi checkem sip face shap, undercut, ova lap, krak mo reinformmen blong join long surefis
- Dimensinal masu blong weld — hemi measurem leg length, thro thickness, angle, ova lap size mo mitim tolerans blong desen
- Dye penetrant testing (PT) — hemi faendaot krak mo surefis defek we i open long non-porus material
- Magnetic particle testing (MT) — hemi detektem surefis mo niar-surefis krak long ferromagnetik stel join
- Ultrasonic testing (UT) — hemi faendaot internal defek olsem lack of fusion, slag o krak inside blong thick join
- Radiographic testing (RT) — hemi givim piksa blong inside blong join fo luk porositi, slag inklusen mo lack of penetraten
- Phased-array ultrasonic testing (PAUT) — hemi skanem join wetem moleta angle so defek i kam klar mo save loketem gud
- Time-of-flight diffraction (TOFD) — hemi measurem haed mo saed blong krak mo plana defek wetem accurasi
- Eddy current testing — hemi skanem surefis krak long tubing mo thin material fastaem
- Tensail test blong all-weld metal — hemi measurem tensail strength, yield strength mo elongasen blong weld deposit
- Transvas tensail test blong jion — hemi checkem strength akros join inklud bas metal, weld mo HAZ
- Side bend mo face bend test — hemi checkem duktiliti mo sando defek we specimen i ben
- Root bend mo longitudenal bend test — hemi evaluate rut side mo longitudinal directen blong jion
- Charpy V-notch impact test — hemi measurem tafnes long law tempa o ambient fo structur safti
- Hardness test (Vickers, Rockwell, Brinell) — hemi chekem hardnes akros cap, rut mo HAZ fo faendaot softening o hardening
- Makro egzaminesen — hemi luk penetraten, leg length, HAZ width mo porositi acros sekasen blong join afta etching
- Mikro egzaminesen — hemi stadi microstraksa, phase balance mo mikrokrek long weld metal mo HAZ
- Ferrite nombo measurement blong stainless weld — hemi prevem hot cracking mo korosen from rong phase balance
- Kemikal komposisen analisis (OES, spark spektrometri) — hemi verifaem se weld metal komposisen i mitim consumabel klas mo aplikesen
- Carbon content analisis (infrarad combasten) — hemi chekem carbon blong L-grad stainless o cs matirial
- Intergranular korosen test (straus, Huey practice) — hemi chekem sensitizasen blong stainless join
- Pitting korosen resistance test (critical pitting temperature) — hemi evaluatem chloride pitting blong duplex o super ostenitik weld
- Hydrogen content analisis blong weld metal — hemi kontrol risik blong hydrogen kraking long high-strength stel
- Dry fillet weld shear test — hemi measurem shear strength blong fillet join long lap konecta
- Stad weld bend mo tensail test — hemi verifaem bond strength blong sher stud welding
- Spot weld peel mo shear test — hemi checkem nugget saed mo strength blong resistance spot join
- Fatigue test blong wael join — hemi evaluatem laef-saikal performans asimetric loading sicos blong bridj mo crane aplikesen
- Fracture tafnes test (CTOD) — hemi assessem kraking rezistens blong thick sekasen offshore mo pressa vessel
- Residual stress measurement (hole-drilling, X-ray) — hemi mapem stress lefo long welding mo nem blong dislortion
- Bend-flat mo flattening test blong piep wael — hemi testem ductility mo sando defek long pipe seam
- Weld decays mo delta ferrite distribution stadi — hemi kontrol mo solidification pat long duplex o austenitik deposit
- Salt spray test blong coated weld seam — hemi evaluatem korosen proteksen blong coating acros jion
- Hydrostatic o pneumatic pressa test — hemi provem lektightness mo strength blong pressa blong wael vessel o pipeline
Summary
Wael testing hemi kavem visual, dimensional, non-destructive (PT, MT, UT, RT, PAUT, TOFD), destructive (tensail, bend, impact, hardness), metalografik mo kemikal analisis blong weld join long karbon stel, stainless stel, aluminiyam, titaniyam, nickel aloy mo planti mo difren material. Turnaround nomo hemi 7 go 15 woking dei bitwin, mo pais i set acording long namba blong test item; klient save contactem injinia fo kwotesen mo diskusen long sapel requirement.