Kev kho cua sov tom qab vuam
1. Lub nkoj siab txais segmented tom qab vuam kev kho cua sov.Qhov ntev ntawm kev rov ua cua sov yog dab tsi?
Rau kev kho cua sov tom qab vuam ntawm cov hlab ntsha siab, thaum segmented kev kho cua sov tau txais yuav, qhov rov qab cua sov ntev yuav tsum tsis pub tsawg tshaj 1500mm, thiab kev ntsuas rwb thaiv tsev yuav tsum tau txais kev pom zoo rau sab nrauv ntawm lub qhov cub kom tsis txhob kub dhau gradients.
2. Hauv qabCov kev kho cua sov hauv zos siv li cas?Post-weld hauv zos kev kho cua sov tuaj yeem siv rau hauv cov xwm txheej hauv qab no:
(1) Class B welds, Class A welds txuas lub taub hau kheej kheej rau lub tog raj kheej, thiab kho qhov tsis xws luag;
(2) Girth welds ntawm high-pressure extra-thick seamless steel kav;
(3) Girth weld ntawm 10MoWVNb high-pressure hydrogen-resistant seamless steel yeeb nkab.
3. Dab tsi yog qhov cua sov dav ntawm circumferential seam hauv zos kho cua sov?
Kev kho cua sov hauv cheeb tsam ntawm lub voj voog ncig muaj xws li siv cov cua sov thiab cov hlua khi. Qhov dav ntawm txoj siv cua sov yog qhov tsawg tshaj plaws ntawm txhua sab ntawm qhov dav ntawm qhov vuam, uas yog ob npaug ntawm nominal thickness ntawm lub hauv paus hlau. Lub plhaub ze ntawm txoj siv cua sov yuav tsum tau nruab nrog ib txoj siv rwb thaiv tsev kom txo tau qhov kub thiab txias gradient. Thiab tsis cuam tshuam rau cov qauv thiab kev ua haujlwm ntawm cov khoom siv.
4. Vim li cas thiaj li normalizing kev kho mob tom qab electroslag vuam?
Txij li thaum electroslag welding yog welded nyob rau hauv ib kauj ruam, nws yuav tsum tau ntau ntawm tshav kub, thiab weld seam ntaub ntawv coarse columnar crystals, uas ua rau cov neeg kho tshuab tsis zoo, tshwj xeeb tshaj yog ib tug tseem ceeb txo nyob rau hauv tej yam zog. Yog li ntawd, normalizing kev kho mob yuav tsum tau ua tom qab vuam los kho cov neeg kho tshuab zog thiab tshem tawm cov residual kev nyuaj siab lub hom phiaj.
5. Dab tsi yog qhov kub siab tshaj qhov sib txawv thoob plaws tag nrho lub thawv thaum kho cua sov tom qab vuam?
Thaum lub thawv tau txais kev kho cua sov tom qab vuam hauv qhov cub, cov nplaim hluav taws yuav tsum tsis txhob ncaj qha mus rau lub thawv kom tsis txhob muaj cua sov hauv zos ntawm lub thawv. Thaum txoj kev kho mob, txhua qhov chaw ntawm lub thawv yuav tsum tau muab cua sov sib npaug. Thaum lub sij hawm khaws cia kub, qhov kub ntawm tag nrho lub thawv yuav tsum tsis txhob sib txawv ntawm qhov ntsuas kub los ntawm ntau tshaj ± 25 degree. Lub ntsuas kub yuav tsum tau txuas nrog lub workpiece thiab faib rau saum thiab hauv qab ntawm lub thawv. Discontinuities nyob rau hauv nruab nrab, hauv qab, thiab cov qauv, qhov chaw uas muaj ntau rigidity, los yog qhov chaw uas kub yuav hloov.
6. Puas yog kev kho cua sov yuav tsum tau ua tom qab surfacing ntawm cov khoom siab ntawm lub nkoj?
Rau cov hlab ntsha nrog corrosion-resistant txheej surfacing ntawm lub siab Cheebtsam ntawm lub nkoj, lub thickness ntawm lub tom qab vuam kub kho yuav tsum tau txiav txim los ntawm lub thickness ntawm lub hauv paus txheej.
7. Dab tsi ntawm deformation tus nqi yog qhov txias-khoov yeeb nkab yuav tsum tau kho cua sov?
Tom qab txias dabtsi yog khoov, cov yeeb nkab steel yuav tsum tau kho kom sov thaum lub deformation tus nqi siab tshaj cov nram qab no:
(1) Lub deformation tus nqi ntawm cov txheej txheem fiber ntau ntawm carbon steel thiab qis alloy steel kav tom qab khoov yuav tsum tsis txhob ntau tshaj li ib nrab ntawm cov elongation teev nyob rau hauv cov qauv steel yeeb nkab, los yog qhov seem elongation ntawm cov khoom txheej yuav tsum tsis txhob tsawg tshaj li 10. %;
(2) Rau cov kav hlau uas muaj qhov yuav tsum tau ua kom muaj zog, qhov siab tshaj plaws deformation yuav tsum tsis txhob siab tshaj 5%.
8. Puas yog lub nkoj siab forgings yuav tsum tau kho cua sov tom qab kho vuam? Cov kev cai yog dab tsi?
Tom qab kho vuam, forgings uas ua tau raws li ib qho ntawm cov xwm txheej hauv qab no yuav tsum tau kho tom qab vuam kub:
(1) Forging cov ntaub ntawv ntawm tej thickness yuav tsum tau ua tom qab vuam thaum tshav kub kub kho;
(2) Kev kho vuam qhov tob yog ntau dua 6 hli lossis thaj tsam ntawm ib qho chaw kho vuam yog ntau dua 3750mm.
9. Dab tsi yog qhov yuav tsum tau ua rau kev kho cua sov tom qab vuam ntawm cov thawv ua los ntawm quenched thiab tempered steel daim hlau?
Raws li cov qauv kev lag luam ntawm cov tuam txhab kev lag luam txawv teb chaws, qhov kev kho cua sov tom qab vuam kub ntawm quenched thiab tempered steel hlab yuav tsum yog 28 degree qis dua qhov kub thiab txias, feem ntau kom tsis txhob muaj zog txo.
