1. Welding deformation tswj ntsuas
(1) Ua raws li kev soj ntsuam tsim nyog thiab suav cov qauv, txiav txim siab qhov vuam deformation thiab shrinkage cia, thiab rau cov khoom sib txuas, cov vuam cia shrinkage tuaj yeem txiav txim siab los ntawm kev sim.
(2) Tswj kev sib dhos clearance
nruj me ntsis tswj lub bevel processing raug thiab sib dhos clearance, thiab xaiv qhov tsim nyog groove puab thiab vuam ib ntus kom txo vuam deformation.
(3) Siv lub log tsheb deformation-proof
Sib sau ua ke nrog cov tsim nyog sib dhos thiab vuam log tsheb thav duab, cuab yeej fixtures, kev txhawb nqa thiab tshwj xeeb shrinkage margins.
(4) Ua tag nrho cov khoom sib dhos ua ke
Rau complex Cheebtsam, kom deb li deb li sai tau nyob rau hauv blocks, tag nrho cov sib dhos vuam txoj kev ntawm ntau lawm.
Block-to-piece welding:
(5) Symmetrical thiab niaj hnub vuam
Ø Thaum lub phaj tuab welded yog welded, tus naj npawb ntawm turnovers yog nce raws li lub deformation, thiab vuam yog symmetrically thov, thiab cov nplaim kho nyob rau hauv tus txheej txheem kuj matched.
Ø Thaum lub vuam faib ntawm cov khoom sib txuas nrog qhov nruab nrab ntawm qhov nruab nrab axisymmetric faib ntawm cov khoom siv, cov vuam ntawm cov khoom siv symmetrical uniform welding los offset tag nrho deformation ntawm cov khoom los ntawm kev siv lub hauv paus ntsiab lus ntawm symmetry.
Ø Ob lub welds teem raws li lub dav hlau nruab nrab axis symmetry yog symmetrical rau ib leeg nyob rau hauv tib txoj kev, tib yam specification, thiab vuam yog nqa tawm nyob rau tib lub sij hawm, lub sij hawm no, lub shrinkage los yog deformation ntawm ob symmetrical welds raws txoj kab ntsug ntawm qhov nruab nrab axis ntawm lub dav hlau yuav sib npaug thiab tshem tawm ib leeg.
Ø Txhawm rau txhawm rau sib npaug ntawm qhov sib npaug ntawm lwm lub dav hlau sib luag, lub vuam seam ntawm ob lub dav hlau yog cross-welded, vuam kev taw qhia yog tib yam, cov specification yog tib yam, yog li ntawd tag nrho cov welds yuav tsum symmetrical rau nruab nrab axis ntawm lub tivthaiv, kom lub zuag qhia tag nrho deformation ntawm lub Cheebtsam yog sib npaug nrog ib leeg thiab minimized.
(6) Teem vuam thim rov qab deformation raws li cov yam ntxwv ntawm kev sib koom ua ke
Rau T-hom welded sib koom nrog ib tug loj elongation ntawm lub tis phaj, lub shrinkage ntawm lub vuam tom qab vuam ua rau lub downward vau ntawm lub outrigger ib feem ntawm lub tis phaj, thiab preset vuam rov qab deformation ua ntej ntau lawm yog ib tug zoo welding txoj kev. tswj qhov vuam deformation.
A. xam qhov deformation npaum li cas los yog lub kaum sab xis ntawm lub elongated ib feem ntawm lub tis phaj raws li qhov loj ntawm weld (sau tus nqi), tus nqi ntawm tis phaj extension, thiab lub thickness ntawm tis phaj;
B. Sib sau cov vuam tom qab vuam thim rov qab deformation ntawm lub preset tis phaj raws li tus nqi kwv yees deformation;
C. Rau lub thickness ntawm lub tis phaj, zus tau tej cov tshwj xeeb stamping pwm ntawm lub high-power xovxwm ncaj qha suppressed anti-deformation;Tom qab kev sib sau ua ke ntawm primer welding tiav, cov nplaim hluav taws kub yog siv los preset vuam los tiv thaiv deformation ntawm tis phaj.
(7) Kev txiav txim vuam tsim nyog
Rau ntev welds, nyob rau hauv cov kev cai tso cai los ntawm tus qauv, lub nruam weld yuav tsum tau hloov mus rau ib tug intermittent weld kom txo deformation;Raws li thaum tsis muaj kev sib txuas welds tsis raug tso cai, ib qho kev sib txuas tsim nyog yuav tsum raug xaiv los txo lossis tshem tawm ib leeg tawm ntawm vuam deformation.Stepwise soldering txoj kev, fractional stepwise soldering txoj kev, dhia vuam txoj kev, alternating vuam txoj kev, thiab ib feem symmetrical soldering txoj kev yuav saws.
2. Welding stress control thiab tshem tawm kev ntsuas
(1) Kev tswj ntawm vuam kev nyuaj siab
(1) Kev ntsuas ntsuas
Ø Txo tus naj npawb ntawm cov welds thiab weld loj ntawm cov qauv.
Ø Symmetrical kev npaj ntawm welds kom tsis txhob muaj ntau dhau ntawm welds.
Ø Txais daim ntawv ntawm kev sib koom ua ke nrog tsawg rigidity.
(2) Cov txheej txheem ntsuas
a.Txo tus nqi ntawm weld filling kom txo tau qhov seem ntawm cov welding
Ø Tsim nyog tsim qhov vuam zawj ntawm cov phaj tuab sib koom ua ke kom txo tau cov vuam txhaws;
Ø Tswj kev ua haujlwm raug thiab sib dhos qhov sib txawv ntawm qhov zawj, thiab tsis txhob nce qhov ntim ntawm vuam filling;
Ø Tswj lub phaj tuab T sib koom tes vuam seam kom ntxiv dag zog lub vuam lub kaum sab xis, tsis txhob nce qhov vuam ntim nyiaj.
b.Txais yuav qhov tsim nyog vuam ib ntus kom txo tau qhov seem seem ntawm vuam
Ø Thaum vuam ntawm tib yam, cov vuam yuav tsum tau siv rau hauv daim ntawv ntawm cov cua sov dispersion thiab symmetrical tis ntau npaum li sai tau;
Ø Thaum cov khoom sib txuas, los ntawm cov haujlwm ruaj khov ntawm cov khoom sib txuas rau ib leeg, mus rau cov haujlwm uas muaj kev ywj pheej ntau dua ntawm kev txav ntawm ib leeg;
Ø Teem lub shrinkage margin tsim nyog ua ntej, qhov sib koom ua ke nrog pom tseeb shrinkage yuav raug welded ua ntej, thiab kev sib koom nrog me me shrinkage yuav welded tom qab, thiab vuam yuav tsum tau welded raws li qhov tsawg tshaj plaws kev txwv.
c.Xyuas kom lub preheating kub, qhov siab tshaj plaws thiab qhov tsawg kawg nkaus interlayer kub nyob rau hauv vuam yuav tsum tau tswj kom zoo, txo cov qib kev sib khi ntawm cov welded sib koom, txo cov vuam kub cuam tshuam cheeb tsam, thiab txo cov vuam seem ntawm cov tuab phaj welded sib koom;
d.Kev siv cov txheej txheem vuam tsim nyog, xws li cov melting sib sib zog nqus melting loj, tam sim no loj, thiab muaj txiaj ntsig CO2 vuam txoj kev, uas tuaj yeem txo cov xov tooj ntawm vuam thiab txo cov vuam deformation thiab seem kev ntxhov siab;
e.Kev siv cov txheej txheem cua sov kom txo tau qhov kev ntxhov siab hauv cov vuam: hauv cov txheej txheem vuam, cua sov rau sab nraud ntawm lub taub hau vuam, qhov dav ntawm qhov cua sov tsis tsawg dua 200 hli, kom nws thiab vuam cheeb tsam tib lub sijhawm nthuav dav thiab daim ntawv cog lus nyob rau tib lub sijhawm, txhawm rau ua tiav lub hom phiaj ntawm kev txo cov vuam kev nyuaj siab.
f.Txoj kev rauj kom txo tau qhov seem ntawm cov vuam: tom qab vuam, ib txhais tes rauj nrog lub ntsej muag me me puag ncig lub taub hau yog siv los rauj qhov ze ntawm seam cheeb tsam ntawm weld, kom cov hlau ntawm weld thiab ze seam cheeb tsam tuaj yeem txuas ntxiv thiab deformed, uas yog siv los them rau los yog offset lub compression yas deformation generated thaum lub sij hawm vuam, thiaj li hais tias cov welding residual kev nyuaj siab yog txo.
Post lub sij hawm: Jun-06-2022