Butt welding flange tsis yooj yim rau deform, kaw zoo, siv dav, muaj qhov sib thooj rigidity thiab elasticity thiab tsim nyog lub pob tw vuam thinning hloov, vuam nrug ntawm qhov sib koom ua ke loj, qhov sib koom ua ke ntawm vuam kub deformation, nws yuav siv sij hawm ntau dua. complex hnoos lub cev qauv, haum rau lub siab los yog kub hloov ntawm lub raj xa dej los yog kub siab, siab siab thiab tsis kub kub pipeline, Feem ntau siv rau PN siab tshaj 2.5MPa yeeb nkab thiab valve kev twb kev txuas;Kuj tseem siv los thauj khoom kim heev, flammable, tawg nruab nrab pipeline.
Butt welded flange feem ntau yog tsim los ntawm forging lossis forging txheej txheem.Thaum siv cov phaj steel lossis ntu steel, cov hauv qab no yuav tsum tau ua raws:
1.Lub taub qab vuam flange yuav tsum tau soj ntsuam los ntawm ultrasonic, tsis muaj delamination defects;
2.Yuav tsum tau txiav mus rau hauv ib daim hlab raws cov kev taw qhia ntawm steel dov, welded rau hauv ib lub nplhaib los ntawm dabtsi yog khoov, thiab nto ntawm cov hlau los tsim ib lub tog raj kheej ntawm lub nplhaib.Hlau phaj yuav tsum tsis txhob raug machined ncaj qha rau hauv caj dab taub qab vuam flange;
3.Lub pob tw weld ntawm lub nplhaib yuav tsum tau txais kev nkag mus rau tag nrho;
4. Lub taub qab vuam ntawm lub nplhaib yuav tsum tau kho tom qab vuam thaum tshav kub kub, thiab raug 100% rays los yog ultrasonic soj ntsuam, uas yuav tsum tau raws li cov kev cai II ntawm JB4730 thiab kev soj ntsuam ultrasonic yuav tsum tau raws li qhov kuv yuav tsum tau ntawm JB4730.
Txoj kab nqes ntawm lub caj dab sab nraud ntawm lub pob tw vuam flange yuav tsum tsis txhob siab tshaj 70 °.Cov kev tsis sib xws ntawm lub pob tw vuam flange yog tswj nruj me ntsis thaum lub sij hawm tsim khoom thiab vuam kom ntseeg tau tias nws tuaj yeem ua nws lub luag haujlwm thiab muaj txiaj ntsig zoo hauv kev tsim khoom thiab siv.
1.NPS: DN15-DN3000, 1/2 "-120"
2. Kev ntsuas siab: CL150-CL2500, PN2.5-PN420
3.Standard: EN, DIN, JIS, GOST, BS, GB
4. Khoom siv:
①Stainless hlau: 31254, 904 / L, 347 / H, 317 / L, 310S, 309, 316Ti, 321 / H, 304 / L, 304H, 316 / L, 316H
②DP Steel: UNS S31803, S32205, S32750, S32760
③ Alloy steel: N04400, N08800, N08810, N08811, N08825, N08020, N08031, N06600, N06625, N08926, N08031, N10276
