Xaiv cov ntaub ntawv surfacing rau valve sealing nto

Lub sealing nto ntawm steel li qub (DC341X-16 Ob chav flanged eccentric npauj npaim valve) feem ntau yog tsim los ntawm (TWS valve) surfacing welding. Cov ntaub ntawv siv rau lub valve surfacing tau muab faib ua 4 pawg loj raws li hom alloy, xws li cobalt-based alloys, nickel-based alloys, hlau-raws li alloys, thiab tooj liab-raws li alloys. Cov ntaub ntawv hlau no yog tsim los rau hauv electrodes, vuam hlau (xws li cov xov hlau flux-cored), fluxes (xws li kev hloov pauv ntawm cov hlau nplaum) thiab cov hmoov hlau alloy, thiab lwm yam, thiab yog surfacing los ntawm phau ntawv arc vuam, oxyacetylene nplaim vuam, tungsten argon arc vuam, submerged arc plating tsis siv neeg vuam.

Kev xaiv ntawm valve sealing nto surfacing cov ntaub ntawv (DC341X3-10Ob chav flanged eccentric npauj npaim valveLub cev sealing nplhaib) feem ntau yog raws li kev siv kub, ua haujlwm siab thiab corrosiveness ntawm lub valve, los yog hom valve, cov qauv ntawm lub sealing nto, sealing tshwj xeeb siab thiab tso cai tshwj xeeb siab, los yog kev tsim thiab kev tsim khoom ntawm lub tuam txhab, lub peev xwm ntawm cov khoom siv thiab kev muaj peev xwm ntawm lub surfacing thiab cov kev cai ntawm cov neeg siv. Optimized tsim yuav tsum tau saws, thiab sealing nto cov khoom uas tsis muaj nqi, yooj yim ntau lawm txheej txheem thiab siab ntau lawm efficiency yuav tsum tau xaiv nyob rau hauv cov kev mob ntawm txaus siab rau cov kev ua tau zoo ntawm （D341X3-16 Ob chav flanged concentric npauj npaim valvee) lub valve.

Qee cov ntaub ntawv siv rau surfacing ntawm valve sealing nto tsuas muaj ib daim ntawv, los yog electrode los yog vuam hlau los yog alloy hmoov, yog li tsuas yog ib txoj kev surfacing yuav siv tau. Qee qhov yog tsim los rau hauv vuam rods, vuam hlau los yog alloy hmoov nyob rau hauv ntau yam ntaub ntawv, xws li stellite l 6 alloy, ob lub vuam rods (D802), vuam hlau (HS111) thiab hlau hmoov hmoov (PT2102), ces phau ntawv arc vuam, oxy2acetylene nplaim vuam, gon tungrcsten welding welding. thiab hmoov plasma arc vuam thiab lwm txoj kev tuaj yeem siv rau kev sib tsoo vuam. Thaum xaiv cov ntaub ntawv surfacing rau lub valve sealing nto, peb yuav tsum coj mus rau hauv tus account qhov kev xaiv ntawm surfacing txoj kev nrog paub tab technology, yooj yim txheej txheem thiab siab ntau lawm efficiency ntawm lub enterprise, thiaj li hais tias lub realization ntawm nws cov kev ua tau zoo nyob rau hauv lub surfacing tsim ntawm lub sealing nto.

Lub sealing nto yog qhov tseem ceeb ntawm lub valve (D371X-10 Wafer npauj npaim valve), thiab nws qhov zoo cuam tshuam ncaj qha rau kev pabcuam lub neej ntawm lub valve. Kev xaiv tsim nyog ntawm cov khoom ntawm lub valve sealing nto yog ib txoj hauv kev tseem ceeb los txhim kho lub neej kev pab cuam ntawm lub valve. Kev nkag siab yuam kev yuav tsum raug zam nyob rau hauv kev xaiv ntawm valve sealing nto cov ntaub ntawv.

Tswvyim 1: Lub hardness ntawm lub valve (D371X3-16C) sealing nto khoom yog siab, thiab nws hnav tsis kam yog zoo.

Kev sim qhia tau hais tias qhov hnav tsis kam ntawm valve sealing nto khoom yog txiav txim siab los ntawm microstructure ntawm cov khoom hlau. Qee cov ntaub ntawv hlau nrog austenite raws li cov matrix thiab ib qho me me ntawm cov qauv nyuaj tsis nyuaj, tab sis lawv cov hnav tsis kam yog qhov zoo heev. Lub sealing nto ntawm lub valve muaj qee qhov nyuaj siab kom tsis txhob raug mob thiab khawb los ntawm cov khib nyiab nyuaj hauv nruab nrab. Txhua yam xav txog, tus nqi hardness HRC35 ~ 45 yog qhov tsim nyog.

Tswvyim 2: Tus nqi ntawm valve sealing nto khoom yog siab, thiab nws cov kev ua tau zoo.

Tus nqi ntawm cov khoom siv yog nws tus yam ntxwv ntawm cov khoom, thaum qhov kev ua tau zoo ntawm cov khoom yog nws lub cev yam ntxwv, thiab tsis muaj kev sib raug zoo ntawm ob. Lub cobalt hlau nyob rau hauv cobalt-raws li alloys los ntawm imports, thiab tus nqi yog siab, yog li tus nqi ntawm cobalt-raws li alloy cov ntaub ntawv yog siab. Cobalt-based alloys yog tus cwj pwm los ntawm kev hnav zoo ntawm qhov kub thiab txias, thaum siv nyob rau hauv ib txwm thiab nruab nrab kub, tus nqi / kev ua tau zoo kuj siab. Nyob rau hauv kev xaiv ntawm valve sealing nto cov ntaub ntawv, cov ntaub ntawv uas tsis muaj nqi / kev ua tau zoo yuav tsum tau xaiv.

Tswvyim 3: Yog hais tias lub sealing nto khoom ntawm lub valve muaj corrosion kuj zoo nyob rau hauv ib tug muaj zog corrosive nruab nrab, nws yuav tsum tau hloov mus rau lwm yam corrosive media.

Lub corrosion kuj ntawm cov ntaub ntawv hlau muaj nws tus kheej complex mechanism, cov khoom muaj corrosion kuj zoo nyob rau hauv ib tug muaj zog corrosive nruab nrab, thiab tej yam kev mob hloov me ntsis, xws li kub los yog nruab nrab concentration, corrosion kuj hloov. Rau lwm qhov nruab nrab corrosive, qhov corrosion kuj txawv dua. Kev tiv thaiv corrosion ntawm cov ntaub ntawv hlau tsuas tuaj yeem paub los ntawm kev sim, thiab cov xwm txheej cuam tshuam yuav tsum tau nkag siab rau kev siv los ntawm cov ntaub ntawv uas cuam tshuam, thiab yuav tsum tsis txhob qiv qhov muag tsis pom.