Kauv welded kav feem ntau muaj lub zog siab dua li cov kav dej ncaj seam welded. Lawv tuaj yeem tsim cov kav dej loj dua siv cov khoom siv nqaim, thiab cov kav dej ntawm cov kab sib txawv tuaj yeem tsim tau siv cov pob zeb ntawm tib qhov dav. Txawm li cas los xij, piv nrog cov kav dej ncaj nraim ntawm tib qhov ntev, qhov ntev ntawm cov hlua txuas txuas ntxiv los ntawm 30 ~ 100%, thiab cov khoom ceev yog qis dua. Yog li ntawd, ncaj seam welding feem ntau yog siv rau cov kav dej me me, thaum muab kauv vuam yog nyiam rau cov kav dej loj dua. Rau qhov loj-inch kauv steel yeeb nkab manufacturers, tom qab ob npoo ntawm kauv steel yeeb nkab billet yog rhuab mus rau lub vuam kub, nyob rau hauv lub siab ntawm extrusion rollers, ntau hlau nplej nkag mus thiab crystallize ib leeg, thaum kawg tsim ib tug muaj zog weld seam.
Yog hais tias lub extrusion quab yuam me me dhau lawm, tus naj npawb ntawm cov khoom siv lead ua yuav me me, ua rau lub zog ntawm cov hlau tsis muaj zog thiab tawg hauv kev ntxhov siab. Conversely, ntau extrusion siab tuaj yeem nyem molten hlau tawm ntawm lub vuam seam, tsis tsuas yog txo cov weld lub zog tab sis kuj tsim ntau sab hauv thiab sab nraud burrs thiab txawm ua rau muaj kev tsis xws luag xws li sib tshooj seams.
Cov cuab yeej impedance yog ib qho tshwj xeeb sib nqus bar lossis ib txheej ntawm cov hlau nplaum rau cov kav hlau kav. Nws qhov chaw hla ntu yuav tsum feem ntau tsis pub tsawg tshaj 70% ntawm lub puab kab uas hla ntawm cov yeeb nkab steel. Nws lub luag hauj lwm yog tsim ib lub voj electromagnetic induction nrog lub induction kauj, weld seam ntug ntawm cov yeeb nkab billet, thiab lub magnetic bar, tsim ib tug sib thooj nyhuv uas concentrates eddy tam sim no tshav kub nyob rau hauv lub weld seam ntug ntawm cov yeeb nkab billet, cua sov rau nws. vuam kub. Cov cuab yeej impedance yog rub nyob rau hauv cov yeeb nkab billet los ntawm cov hlau hlau, nrog rau nws txoj hauj lwm hauv nruab nrab kuj tseem nyob ze rau qhov chaw ntawm extrusion rollers. Thaum pib, vim qhov txav ntawm cov yeeb nkab billet, cov cuab yeej impedance muaj kev cuam tshuam tseem ceeb ntawm kev sib txhuam tawm tsam sab hauv phab ntsa ntawm cov yeeb nkab billet.
Cov kav hlau loj loj yog nquag tsim los ntawm cov hlau sawb coils raws li cov ntaub ntawv raw, uas yog tsim los ntawm extrusion nyob rau hauv chav tsev kub thiab welded siv lub automatic ob-xaim ob-sided submerged arc vuam txheej txheem los tsim kauv seam steel kav. Cov txheej txheem ntau lawm yog raws li nram no:
(1) Cov khoom siv raw, xws li steel sawb coils, vuam hlau, thiab cov fluxes, raug kuaj xyuas lub cev thiab tshuaj lom neeg ua ntej siv.
(2) Lub taub hau thiab tus Tsov tus tw ntawm steel sawb yog pob tw-welded siv ib-xaim los yog ob-xaim submerged arc vuam, thiab tsis siv neeg submerged arc vuam yog siv los kho vuam tom qab cov hlau sawb yog dov rau hauv cov yeeb nkab.
(3) Ua ntej tsim, steel sawb undergoes leveling, trimming, ntug planing, deg tu, conveying, thiab pre-bending.
(4) Lub ntsuas hluav taws xob tiv thaiv lub siab tswj lub siab ntawm lub tog raj kheej hydraulic ntawm ob sab ntawm cov khoom siv kom ntseeg tau tias kev thauj mus los ntawm cov hlau zoo.
(5) Sab nraud lossis sab hauv tswj cov menyuam ua haujlwm yog ua haujlwm.
(6) Lub vuam qhov sib txawv yog siv los xyuas kom meej tias qhov sib txawv ntawm qhov sib txawv raws li qhov yuav tsum tau vuam, nrog kev tswj nruj ntawm cov yeeb nkab txoj kab uas hla, qhov sib txawv ntawm qhov sib txawv, thiab qhov sib txawv ntawm qhov sib txawv.
(7) Ob leeg sab hauv thiab sab nrauv vuam siv American Lincoln hluav taws xob vuam tshuab rau ib leeg-xaim lossis ob-xaim submerged arc vuam, ua tiav cov khoom siv vuam ruaj khov.
(8) Lub weld seams ua tiav raug tshuaj xyuas siv online txuas ntxiv ultrasonic tsis siv neeg qhov tsis pom kev, kom ntseeg tau 100% kev ntsuas tsis muaj kev puas tsuaj ntawm kauv weld seams. Yog tias kuaj pom muaj teeb meem, lub tswb tsis siv neeg raug tsim, thiab cov cim raug tshuaj tsuag. Cov neeg ua haujlwm tsim khoom tuaj yeem kho cov txheej txheem tam sim kom tshem tawm qhov tsis xws luag.
Qhov zoo ntawm Thick-walled Spiral Steel Pipes: Cov yeeb yaj kiab oxide khov kho rau ntawm cov kav dej tuab-walled steel ua rau cov hlau tsis muaj corrosion kuj zoo heev hauv txhua qhov dej zoo, suav nrog cov dej muag. Txawm tias faus nyob rau hauv av, nws qhia superior corrosion kuj thiab zoo erosion kuj.
