Copper Welding yog qhov nyuaj, Lub Tshuab Vuam Tshuab tuaj yeem tuav nws? Koj puas xav tau cov txuj ci tshwj xeeb?

Tooj liab, nrog nws cov hluav taws xob zoo heev thiab thermal conductivity nrog rau kev tiv thaiv corrosion, yog dav siv hauv hluav taws xob, hluav taws xob, tub yees thiab lwm yam. Txawm li cas los xij, hauv kev tsim khoom tiag tiag, kev sib txuas tooj liab feem ntau ua rau mob taub hau rau cov neeg ua haujlwm - - cov ntsiab lus vuam yog qhov yooj yim rau kev sib txuas virtual, porosity, thiab txawm tias tsis ua haujlwm los ntawm vuam. Qhov no inevitably tsa cov lus nug: Vim li cas tooj liab vuam nyuaj? Cov tshuab vuam zoo tib yam puas tuaj yeem tuav nws? Thiab puas yuav tsum tau siv tshuab tshwj xeeb?

 I. Qhov nyuaj ntawm Copper Vuam: 'Innate Challenges' los ntawm Cov Khoom Siv Khoom

Qhov nyuaj ntawm tooj liab vuam feem ntau yog los ntawm nws lub cev lub cev, uas coj peb qhov loj 'innate nyuaj' rau cov txheej txheem vuam:

Ua ntej yog lub siab thermal conductivity uas 'kho tawm cua sov'. Copper lub thermal conductivity yog li tsib npaug ntawm qis - carbon hlau. Thaum lub sij hawm welding, lub input tshav kub yog ua sai sai thiab diffused los ntawm cov khoom siv tooj liab, ua rau nws nyuaj rau lub pas dej molten kub nyob rau saum lub melting pib. Qhov no yooj yim ua rau muaj teeb meem xws li 'welding tsis dhau' thiab 'tsis muaj fusion', tshwj xeeb tshaj yog rau cov ntaub ntawv tooj liab thicker dua 3 hli, qhov kub poob yog ntau pronounced.

Qhov thib ob yog qhov yooj yim oxidation uas 'destroys lub pas dej molten'. Tooj liab reacts sai sai nrog oxygen ntawm qhov kub thiab txias (siab tshaj 300 ℃) los tsim ib txheej tuab ntawm tooj liab oxide zaj duab xis. Zaj duab xis no muaj qhov melting point siab li 1326 ℃, deb tshaj tooj liab tus kheej melting point ntawm 1083 ℃. Yog tias tsis muab tshem tawm hauv lub sijhawm, nws yuav nyob twj ywm hauv lub pas dej molten, ua rau cov porosity thiab slag suav nrog, uas ncaj qha txo qhov vuam taw tes lub zog.

Qhov thib peb yog qhov muaj zog fluidity uas 'ua rau nws nyuaj rau daim'. Copper kua muaj ntau dua fluidity dua li steel kua. Yog tias tsis tswj xyuas kom zoo thaum lub sij hawm vuam, cov kua tooj liab yog qhov ua rau poob, ua rau cov hlau tsis zoo thiab txawm tias 'hlawv - dhau' ntawm nyias-walled tooj liab daim.

II. Ordinary Welding Machines 'Poob luv': Tsis muaj peev xwm ua tau raws li qhov xav tau ntawm vuam tooj liab

Tau ntsib nrog cov kev sib tw vuam ntawm tooj liab, cov tshuab vuam zoo tib yam (xws li cov pa arc welders thiab cov chaw vuam zoo tib yam) feem ntau 'poob luv' thiab ua tsis tau raws li qhov yuav tsum tau ua. Cov teeb meem tseem ceeb yog tsom rau ob yam:

Ntawm ib sab, lub zog tso zis yog 'tsis meej'. Ordinary arc welders muaj qhov nqaim ntawm qhov kev hloov pauv tam sim no thiab qhov hluav taws xob, thiab lub zog tawg. Lawv tsis tuaj yeem muab cov cua sov siab thiab ruaj khov rau tooj liab siab thermal conductivity. Txawm hais tias cov cua sov tsis txaus, ua rau tsis tiav vuam, los yog cov cua sov ntau dhau, hlawv nyias-walled pieces. Ordinary chaw welders, ntawm qhov tod tes, raug kev txom nyem los ntawm tooj liab lub siab hluav taws xob conductivity, uas ua rau tam sim no disperse yooj yim thiab ua rau nws nyuaj rau tsim ib tug loj txaus molten core. Lub weld point lub zog yog deb tshaj li qhov yuav tsum tau ua.

Ntawm qhov tod tes, muaj qhov tsis muaj 'oxidation tiv thaiv'. Feem ntau cov tshuab vuam zoo tib yam tsis muaj kev tiv thaiv roj inert. Thaum lub sij hawm vuam, tooj liab yog nyob rau hauv ncaj qha kev sib cuag nrog huab cua, thiab cov oxide zaj duab xis tseem tsim. Txawm hais tias qhov vuam yog ua tiav, qhov vuam taw tes yuav ua tsis yooj yim vim oxidation tsis xws luag thiab yuav tsis muaj peev xwm tiv taus kev co thiab siab thaum siv sij hawm ntev.

III. Copper Vuam Yuav Tsum Tau 'Tshuaj Kho Mob Tshwj Xeeb': Tag Nrho - Txheej Txheem Ua kom zoo los ntawm Preheating mus rau kev tiv thaiv

Txhawm rau kov yeej cov teeb meem ntawm kev siv tooj liab, lub hom phiaj tshwj xeeb yuav tsum tau siv los ua ib qho kev npaj ua tiav los ntawm ua ntej, thaum lub sij hawm thiab tom qab vuam:

Ua ntej vuam , 'pre-kev kho' yog xav tau. Ua ntej, qhov saum npoo ntawm cov khoom siv tooj liab yuav tsum yog hauv av thiab cov kua qaub - ntxuav kom huv si kom tshem tawm cov oxide zaj duab xis thiab cov roj paug kom tsis txhob muaj impurities nkag mus rau hauv lub pas dej molten. Qhov thib ob, preheating yuav tsum tau nqa tawm raws li lub thickness ntawm cov khoom siv tooj liab. Cov khoom siv tooj liab nrog lub thickness ntawm 3 - 10 hli yuav tsum tau preheated rau 200 - 350 ℃, thiab cov thickness ntawm ntau tshaj 10 hli yuav tsum tau preheated rau 350 - 500 ℃. Preheating slows down thaum tshav kub kub poob thiab tsim tej yam kev mob rau lub stability ntawm lub molten pas dej ua ke.

Thaum lub sij hawm welding , 'paj meej lub zog tswj + oxidation tiv thaiv' yog yuav tsum tau. Xaiv txoj kev vuam nrog lub zog muaj zog, xws li pulsed MIG vuam thiab laser vuam. Pulsed MIG welding tuaj yeem tso tawm lub zog siab hauv ib qho tam sim los ntawm qhov siab - zaus pulsed tam sim no, kov yeej tooj liab qhov kub poob. Nws kuj tseem ua ke nrog kev tiv thaiv argon kom cais cov huab cua. Laser vuam tsom lub zog nrog rau qhov chaw loj ntawm 0.01mm qib, sai sai melting tooj liab thiab ua kom sov - cuam tshuam cheeb tsam rau 0.1 - 0.3mm kom tsis txhob deformation. Tsis tas li ntawd, cov khoom siv vuam tshwj xeeb yuav tsum raug xaiv, xws li phosphor - tooj liab vuam hlau thiab silicon - tooj liab vuam hlau. Cov ntaub ntawv no tuaj yeem tsim cov hlau zoo nrog tooj liab thiab inhibit qhov tsim ntawm oxide zaj duab xis.

Tom qab vuam , 'slow cooling' yog xav tau. qhwv lub weld point nrog insulating paj rwb tom qab vuam kom nws txias maj mam, txo cov kev ntxhov siab sab hauv los ntawm qhov kub thiab txias sib txawv thiab tsis txhob tawg.

Copper welding muaj cov kev xav tau siab heev rau cov cuab yeej ua tau zoo thiab cov txheej txheem cov ntsiab lus, thiab cov tshuab vuam zoo tib yam thiab cov txheej txheem ib txwm yog qhov nyuaj rau kev ua tau raws li qhov xav tau. Yog tias koj muaj cov kev xav tau ntawm tooj liab, PDKJ lub vuam tshuab tau ua kom zoo dua qhov kev tswj xyuas lub zog rau cov yam ntxwv ntawm tooj liab, nruab nrog tshwj xeeb oxidation - kev tiv thaiv kev tiv thaiv modules thiab cov txheej txheem kev npaj, thiab tuaj yeem daws cov teeb meem ntawm tooj liab vuam tsis dhau thiab yooj yim oxidation, kom ntseeg tau lub zog thiab ruaj khov ntawm cov ntsiab lus weld thiab muab kev ruaj ntseg guarantees rau ntau lawm.

Yog tias koj xav tau lub tshuab vuam, thov hu rau Ms. Zhao

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