Feem ntau cov neeg yuav khoom OEM ntsuas qhov vuam zoo los ntawm kev saib cov hlaws tiav. Qhov ntawd yog qhov yuam kev. Thaum lub sij hawm koj tab tom soj ntsuam cov weld, qhov distortion twb kaw lawm.
Rau cov phaj hnyav welded cov rooj sib txoos uas muaj nyob rau hauv mining, thauj, thiab infrastructure - distortion tsis yog vuam tsis xws luag. Nws yog ib tug sequencing defect. Koj kho nws ua ntej thawj arc ntaus, lossis koj zom nws tom qab. Rau txhua tus neeg yuav khoom hnyav txoghnyav phaj vuam distortion tswj, kev sib tham yuav tsum pib ntawm WPS, tsis yog thaum kawg kev soj ntsuam.
Ntawm peb 7,000㎡ sheet hlau fabrication khw hauv Qingdao, txhua AWS D1.1 WPS peb teeb meem rau cov phaj hnyav ua haujlwm pib nrog daim duab qhia ua ntu zus, tsis yog lub rooj parameter. Ntawm no yog lub moj khaum.
Tsib Cov Txheej Txheem Tsim Qauv rau Hnyav Phaj Vuam
1. Symmetrical tshav kub input faib
Rau cov qauv hauv lub thawv, welds pib los ntawm qhov chaw thiab nce mus rau sab nraud hauv cov qauv sib npaug. Rau cov seams ntev, alternate -ditch welding (s hla ntu) tiv thaiv cua sov los ntawm lub tsev nyob rau hauv ib cheeb tsam. Qhov kev hloov pauv no feem ntau txiav angular distortion hauv ib nrab.
2. Plooj vuam ua ntej puv - seam hla
Luv luv 50-80mm stitch welds xauv qhov sib koom ua ke geometry ua ntej, tom qab ntawd tag nrho cov ntawv hla dhau los ntawm nruab nrab. Thawj stitches absorb shrinkage rog; qhov kawg hla dhau los ntawm kev sib koom ua ke nrog kev txav tsawg.
3. Tsawg cua sov input ib kis rau tuab phaj
Rau phaj siab tshaj 16 hli, ntau- kis welds nrog kev tswj qhov kub thiab txias (tsawg dua lossis sib npaug li 230 degree) tuav ib qho siab -amp hla txhua lub sijhawm. Txo cov cua kub nkag rau ib qhov kev hla txhais tau tias tsawg dua thermal expansion, tsis tshua muaj kev cuam tshuam, thiab cov txiaj ntsig huv dua tawm tsam cov khoom tsim tawm hauv AS / NZS 5131, Appendix F.
4. Rov qab thiab clamping fixtures uas ua pa nrog cov vuam
Rigid clamping tsim xauv- hauv kev ntxhov siab uas tawm thaum lub sij hawm AS/NZS 4680 HDG dipping. Peb tsim fixtures nrog tswj lub caij nplooj ntoos hlav- rov qab qhov khoob ntawm lub hauv paus - rau 25 hli phaj, ib tug 2-3 hli hauv paus qhov sib txawv cia lub sib koom ua ke yuav cia li es tsis txhob warping unpredictably tom qab lub tshav kub qhov chaw txav mus. Qhov sib txawv me me nrog cov phaj tuab: lub phaj tuab dua, qhov loj dua qhov nyiaj pub dawb ua ntej qhov haum- nce yog clamped.
5. Weld kev taw qhia ua raws txoj kev nyuaj siab
Welds uas khiav perpendicular mus rau lub ntsiab load txoj kev qhia tsis tsim nyog transverse shrinkage. Re-orienting welds thaum uas tig mus rau txoj kev nyuaj siab, txawm tias nws yuav tsum tau ib tug complex fixture teeb, txo ncej-weld straightening los ntawm 40–60% ntawm lub thawv-section assemblies.
Tus Nqi Tau Txais Qhov Tsis Txaus Siab
Ua ntej peb rov tsim cov txheej txheem hauv cov ntaub ntawv hauv qab no, tus neeg yuav khoom twb tau them rau txoj kev qub ib zaug. Lawv cov khoom lag luam yav dhau los tau khiav tag nrho - ntev txuas txuas ntxiv ntawm 48-unit batch ntawm cov kab sib npaug sib npaug; 12 units tuaj ntawm vuam nrog 20mm + ntawm hneev. Txhua tus ntawm cov no yuav tsum tau nplaim taws- ncaj nraim, rov- hneev- kuaj xyuas, tom qab ntawd rov-galvanized vim qhov ncaj ncaj tsoo AS / NZS 4680 txheej. Tus nqi kwv yees: kwv yees li A$ 15,000 hauv kev ua haujlwm ncaj qha thiab rov ua dua -dipping, ntxiv rau peb lub lis piam ntawm lub sijhawm xa ntawv tawm tsam hnub xa khoom. Kev xav ib ntus yuav tau ntes nws ua ntej thawj arc - qhov tiav weld hlaws yog qhov tsis ncaj ncees lawm kom paub.
Tus lej tiag los ntawm Australian OEM Project tsis ntev los no
Peb tau khiav 3-meter ntev hnyav phaj kis kab teeb (25mm flange + 16mm web) rau Australian mining khoom OEM lub quarter kawg. Tus thawj WPS los ntawm tus neeg yuav khoom yav dhau los tau hu ua qhov txuas txuas txuas ntxiv ntawm ib kawg mus rau lwm qhov.
Cov txiaj ntsig ntawm thawj tus qauv:22mm ntawm hneev hla 3m ntev. Kev tsis lees paub rau HDG dipping thiab downstream sib dhos haum - tus hneev ib leeg dhau ntawm qhov kev tso cai ncaj nraim ib tus tswv cuab 3m yuav ib txwm nqa raws li AS/NZS 5131, Cov Ntawv Ntxiv F.
Peb rov tsim WPS nrog tsib lub hauv paus ntsiab lus saum toj no - symmetrical start points, 60mm stitch welds locking flanges first, three-pass sequences with interpass temperature checks, and a back-step welding direction on the final cap pass. Tag nrho cov kev tawm dag zog tau siv ob hnubWPS welding sequence optimizationthiab ntxiv xoom cov khoom siv.
Qhov kawg tshwm sim:8mm hneev 3m. Qhov ntawd yog 63.6% txo - nyob rau sab saum toj kawg ntawm 40-60% ntau yam peb feem ntau pom thoob plaws cov haujlwm, thiab sab hauv cov neeg siv khoom kos duab kam rau ua nrog xoom HDG rework. Tag nrho 48-unit batch tshem tawm thawj tsab xov xwm tshuaj xyuas thawj zaug.
Ib qhov thib ob lub quarter dhau los - 4m lub hauv paus ncej rau qhov chaw nres tsheb thauj khoom thauj - tau txav los ntawm 30mm hneev mus rau 12mm tom qab tib lub sijhawm rov tsim dua tshiab, huv si 60% txiav, dua nrog tsis muaj kev hloov pauv rau cov khoom siv lossis qhov ntau thiab tsawg.
Lub tsib -node tseem ceeb hloov tshiab peb tau koom nrog cov neeg yuav khoom (khoom siv → txiav → vuam → HDG → loaded) chij WPS hloov ntawm qhov chaw txiav, tsis yog vuam. Qhov ntawd yog qhov txawv ntawm 2-hnub kho thiab 3-lub lim tiam ib.
Kab hauv qab
Vuam ib ntus yog qhov pheej yig tshaj kev tswj hwm koj tuaj yeem yuav ntawm cov phaj hnyav fabrication. Tsis muaj nqi ntxiv. Tsis muaj cov cuab yeej tshwj xeeb. Tsuas yog ib tug neeg xav txog qhov kev txiav txim ntawm welds ua ntej ntaus thawj arc.
Xa koj cov duab kos rau peb rau kev tshuaj xyuas DFM dawb.Peb mam li daim ntawv qhia txog kev npaj vuam ib ntus tawm tsam koj qhov yuav tsum tau ua siab ntev thiab txheeb xyuas qhov twg AS / NZS 5131, Daim Ntawv Qhia Ntxiv F yuav tsum zaum ntawm cov chaw nres tsheb. Hauv 12 lub hlis dhau los, peb tau tshuaj xyuas 20+structural steel fabrication Australiatej yaam num - feem ntau pom distortion txo ntawm 40–60% ua ntej thawj cov khoom siv vuam yog khiav.
