Yuav ua li cas tiv thaiv thiab daws qhov teeb meem porosity ntawm cov yeeb nkab steel seam

Welded steel yeeb nkabtau muab faib ua ob hom raws li nws cov vuam seam zoo-ncaj seam steel yeeb nkab thiab kauv steel yeeb nkab.

Cov yeeb nkab steel seam porosity cuam tshuam tsis yog tsuas yog qhov ntom ntawm cov yeeb nkab welds, uas ua rau cov kav dej xau, thiab yuav dhau los ua ib qho kev cuam tshuam ntawm corrosion-induced, heev txo weld lub zog thiab toughness.

Weld porosity yam tseem ceeb yog: cov dej ntws, av, thiab hlau oxide, lub thickness ntawm cov welded Cheebtsam thiab kev pab them nqi, thiab cov nto zoo ntawm steel ntawv ua sab phaj, vuam txheej txheem thiab cov yeeb nkab txoj kev thiab thiaj li nyob.

Cov kev tswj xyuas ntsig txog muaj raws li hauv qab no:

1.A flux tivthaiv.Thaum muaj qhov tsim nyog ntawm CaF2 thiab SiO2, cov txheej txheem vuam yuav nqus tau ntau H2, thiab tsim HF uas muaj kev ruaj ntseg siab thiab tsis yaj hauv cov kua hlau, yog li tiv thaiv kev tsim cov roj hydrogen. qhov.

2.Accumulation thickness ntawm flux yog feem ntau 25-45mm.Thaum Flux yog nrog loj hais degree thiab me me ntom ntom, coj lub siab tshaj plaws accumulation thickness, whereas qhov tsawg kawg nkaus tus nqi;siab tam sim no, tsis tshua muaj vuam ceev siv lub siab tshaj plaws thickness, whereas qhov tsawg kawg nkaus tus nqi.Tsis tas li ntawd, thaum lub caij ntuj sov los yog high humidity hnub, flux rov qab yuav tsum tau qhuav ua ntej siv.

3 Steel nto kho.Txhawm rau kom tsis txhob muaj qhov sib txawv ntawm cov hlau oxide thiab lwm cov khib nyiab poob rau hauv cov txheej txheem molding, lub rooj tsavxwm ntxuav yuav tsum tau teeb tsa.

4 Steel phaj ntug kho.Cov cuab yeej tshem tawm xeb thiab burrs yuav tsum tau muab tso rau hauv lub phaj steel kom txo tau qhov porosity tsim.Qhov chaw zoo tshaj plaws rau nruab cov cuab yeej meej yog nyob ze ntawm lub disc txiav ntug milling tshuab, cov qauv ntawm cov cuab yeej yog lub zog hlau log thaum ob txoj haujlwm kho qhov sib txawv, nce thiab nqis ntawm cov phaj compression npoo.

5 Vuam kab profile.Vuam daim ntawv yog me me dhau lawm, weld zoo yog nqaim thiab tob, roj thiab kev koom ua ke tsis yooj yim rau xau tawm thiab yooj yim rau daim pores thiab slag.General weld factor tswj nyob rau hauv 1.3-1.5, tuab-walled yeeb nkab xaiv tus nqi siab tshaj plaws, thiab qhov tsawg kawg nkaus tus nqi ntawm nyias-walled.

6 Txo qhov chaw sib nqus sib nqus.Txhawm rau txo qhov cuam tshuam ntawm kev sib nqus tshuab, txoj haujlwm txuas ntawm lub tshuab ua haujlwm yuav tsum nyob deb ntawm lub davhlau ya nyob twg ntawm lub vuam cable kom tsis txhob muaj qhov sib nqus sib nqus hauv qhov chaw ua haujlwm.

7 Technology:Yuav tsum tsim nyog txo qhov vuam ceev los yog nce qhov tam sim no, yog li ncua lub crystallization tus nqi ntawm lub vuam hlau da dej, thiaj li yuav ua rau nws yooj yim rau tso cov pa roj, thaum lub sij hawm tus me nyuam txoj hauj lwm tsis ruaj tsis khov, lub strip yuav tsum tau kho raws sij hawm kom tshem tawm cov roj. pem hauv ntej qag los ntawm kev trimming tsis tu ncua los yog Choj tswj kev tsim, ua rau roj kom dim nyuaj.


Post lub sij hawm: Sep-15-2021