Xov Xwm ｜ Sib tham txog Brazing Technology ntawm Aluminium Heat Sink

Abstract

Radiators tau ntsib peb tiam ntawm txoj kev loj hlob, xws li tooj liab radiators, aluminium fabricated radiators thiab aluminium brazed radiators.Txog tam sim no, aluminium brazing radiator tau dhau los ua qhov sib txawv ntawm lub sijhawm, thiab aluminium brazing yog ib qho kev koom tes tshiab hauv kev lag luam ntawm aluminium radiator.Kab lus no feem ntau tham txog cov hauv paus ntsiab lus thiab cov txheej txheem dav dav ntawm qhov kev tawm tshiab aluminium brazing technology.

Lo lus tseem ceeb:aluminium brazing radiator;radiator;aluminium brazing txheej txheem

Tus sau:Qing Rujiao

Chav tsev:Nanning Baling Technology Co., Ltd., Nanning, Guangxi

1. Qhov zoo thiab qhov tsis zoo ntawm aluminium brazing

Brazing yog ib qho ntawm peb txoj kev vuam ntawm fusion vuam, siab vuam, thiab brazing.Aluminium brazing siv hlau solder nrog lub melting point qis dua li cov hlau vuam.Tshav kub lub solder thiab vuam kom txog thaum nws qis dua qhov kub ntawm qhov vuam ntawm qhov vuam thiab siab tshaj qhov kub ntawm cov khoom siv.Nws yog ib txoj hauv kev siv cov kua nplaum los ntub cov hlau ntawm cov welding, sau cov seam nyias ntawm qhov sib koom ua ke thiab nyiam ib leeg nrog cov hlau molecules ntawm lub hauv paus hlau kom ua tiav lub hom phiaj ntawm kev sib txuas cov vuam.

qhov zoo:

1) Raws li ib txwm muaj, lub vuam yuav tsis yaj thaum lub sij hawm brazing;

2) Ntau qhov chaw lossis ntau txheej txheej thiab nested weldments tuaj yeem brazed ib zaug;

3) Nws tuaj yeem ua rau cov khoom sib txawv thiab nyias, thiab tuaj yeem ua rau qhov sib txawv loj ntawm cov tuab thiab tuab;

4) Cov pob qij txha brazed ntawm qee cov ntaub ntawv tshwj xeeb tuaj yeem raug tshem tawm thiab rov ua dua.

tsis txaus:

Piv txwv li: 1) Lub zog tshwj xeeb ntawm cov pob qij txha brazing yog qis dua li ntawm fusion vuam, yog li cov pob qij txha feem ntau siv los ua kom cov kabmob muaj peev xwm;

2) Cov kev xav tau rau kev tu cov qib ntawm qhov sib koom ua ke ntawm cov khoom ua haujlwm brazing thiab kev sib dhos zoo ntawm cov khoom ua haujlwm siab heev.

2. Lub hauv paus ntsiab lus thiab txheej txheem ntawm aluminium brazing

Lub hauv paus ntsiab lus ntawm aluminium brazing

Feem ntau, thaum lub sij hawm brazing, muaj ib tug ntom oxide zaj duab xis nyob rau saum npoo ntawm txhuas thiab txhuas alloy, uas cuam tshuam cov ntub dej thiab ntws ntawm molten solder.Yog li ntawd, txhawm rau ua kom muaj kev sib koom ua ke zoo ntawm cov khoom siv vuam, txheej txheej ntawm oxide zaj duab xis yuav tsum raug rhuav tshem ua ntej vuam.Thaum lub sij hawm brazing txheej txheem, thaum kub mus txog qhov yuav tsum tau kub ntawm lub flux, lub flux pib yaj, thiab cov molten flux kis tau rau saum npoo ntawm txhuas kom yaj cov oxide zaj duab xis thaum kub nce ntxiv.Lub Ai-Si alloy pib yaj, thiab ntws mus rau qhov sib txawv yuav tsum tau welded los ntawm capillary txav, ntub thiab nthuav mus ua ib qho kev sib koom ua ke.

Txawm hais tias cov ntsiab lus brazing ntawm txhuas radiators yog qhov zoo sib xws, lawv tuaj yeem muab faib ua lub tshuab nqus tsev, cua brazing thiab Nocolok.brazing raws li cov txheej txheem brazing.Cov hauv qab no yog qee qhov sib piv tshwj xeeb ntawm peb txoj kev brazing no.

Ntawm peb cov txheej txheem, Nocolok.brazing yog cov txheej txheem tseem ceeb ntawm txhuas radiator brazing txheej txheem.Yog vim li cas Nocolok.brazing tam sim no tuaj yeem dhau los ua ib feem ntawm cov txheej txheem txhuas radiator brazing yog vim qhov zoo ntawm vuam zoo ntawm cov khoom no.Thiab nws muaj cov yam ntxwv ntawm kev siv hluav taws xob tsawg, kev ua haujlwm siab, kev cuam tshuam me me, thiab muaj zog corrosion kuj.Nws yog ib txoj kev brazing zoo tagnrho.

Nocolok.Txheej txheem brazing

Ntxuav

Muaj cais tu qhov chaw thiab ntxuav cov radiator cores.Nyob rau lub sijhawm no, tswj qhov kub thiab txias ntawm tus neeg saib xyuas thiab ua kom qhov kub thiab txias ntawm tus neeg saib xyuas ntawm tus nqi tsim nyog yog cov kauj ruam tseem ceeb hauv kev tu.Cov kev paub dhau los qhia tau hais tias qhov kub ntawm kev ntxuav ntawm 40 ° C mus rau 55 ° C thiab cov ntsiab lus ntawm kev tu tus neeg sawv cev ntawm 20% yog qhov txiaj ntsig zoo tshaj plaws rau kev tu cov khoom siv hluav taws xob txhuas.(Ntawm no yog hais txog kev tiv thaiv ib puag ncig tiv thaiv tus neeg saib xyuas, pH tus nqi: 10; tus neeg saib xyuas ntawm cov qauv sib txawv lossis qib pH yuav tsum tau kuaj xyuas ua ntej siv)

Yog tias muaj cov flux txaus, nws tuaj yeem ua rau lub tshuab ua haujlwm tsis muaj kev ntxuav, tab sis kev ntxuav yuav ua rau muaj kev sib koom ua ke ntau dua, uas tuaj yeem txo cov flux siv thiab tau txais cov khoom zoo welded.Kev huv ntawm lub workpiece kuj tseem cuam tshuam rau cov txheej txheem flux.

Txau flux

Txau flux rau saum npoo ntawm txhuas qhov chaw yog txheej txheem tseem ceeb hauv Nocolok.Cov txheej txheem brazing, qhov zoo ntawm flux txau yuav ncaj qha cuam tshuam rau qhov zoo ntawm brazing.Vim tias muaj cov yeeb yaj kiab oxide nyob rau saum npoo ntawm txhuas.Cov oxide zaj duab xis ntawm aluminium yuav cuam tshuam qhov ntub dej ntawm qhov chaw thiab qhov ntws ntawm molten fiber ntau.Cov oxide zaj duab xis yuav tsum tau muab tshem tawm los yog pierced los tsim ib tug weld.

Lub luag hauj lwm ntawm flux: 1) Ua kom puas cov oxide zaj duab xis ntawm aluminium nto;2) Txhawb kev ntub dej thiab du ntws ntawm cov solder;3) Tiv thaiv qhov chaw los ntawm re-oxidizing thaum lub sij hawm brazing txheej txheem.Tom qab brazing tiav, lub flux yuav tsim ib zaj duab xis tiv thaiv nrog muaj zog adhesion ntawm qhov chaw ntawm aluminium.Cov txheej txheem ntawm zaj duab xis no yeej tsis muaj kev cuam tshuam rau kev ua haujlwm ntawm cov khoom, tab sis nws tuaj yeem txhim kho lub peev xwm ntawm txhuas qhov chaw los tiv thaiv sab nraud corrosion.

Tus nqi ntawm flux txuas: Thaum lub sij hawm brazing txheej txheem, tus nqi ntawm flux txuas: feem ntau 5g ntawm flux ib square meter;3g ib square meter kuj tseem niaj hnub no.

Flux add method:

1) Muaj ntau txoj kev sib txawv: kev siv hluav taws xob tsawg, txhuam hniav, kev siv hluav taws xob siab, dipping, electrostatic txau;

2) Cov txheej txheem ntau tshaj plaws ntawm kev ntxiv cov flux hauv kev tswj qhov cua brazing (c AB) txheej txheem yog ncua kev txau;

3) Lub cev thiab tshuaj lom neeg cov khoom ntawm flux ua kom ntub dej txau yog thawj qhov kev xaiv;

4) Raws li kev txheeb cais thoob ntiaj teb: 80% siv cov tshuaj tsuag ntub dej, 15% siv cov tshuaj tsuag qhuav, 5% xaiv cov tshuaj tsuag los yog ua ntej txheej;

Kev txau ntub dej tseem yog txoj hauv kev zoo tshaj plaws ntawm fluxing hauv kev lag luam thiab muab cov txiaj ntsig zoo heev.

Qhuav

Txhawm rau kom ntseeg tau qhov zoo ntawm brazing qhov chaw, lub workpiece yuav tsum tau qhuav ua ntej brazing kom tshem tawm cov dej noo los ntawm cov txheej txheej flux.Qhov tseem ceeb tshaj plaws nyob rau hauv cov txheej txheem ziab yog tswj kom qhuav qhov kub thiab txias mesh;Yog hais tias qhov kub thiab txias qis dhau los yog qhov mesh ceev ceev heev, cov tub ntxhais yuav tsis qhuav, ua rau txo qis brazing zoo los yog desoldering.Qhov ziab kom qhuav yog feem ntau ntawm 180 ° C thiab 250 ° C.

Brazing

Qhov kub ntawm txhua cheeb tsam nyob rau hauv lub brazing seem, qhov ceev ntawm lub net thiab cov cua ntawm lub brazing rauv tswj lub brazing zoo.Brazing kub thiab lub sij hawm brazing yuav muaj kev cuam tshuam ncaj qha rau qhov zoo ntawm cov khoom.Txawm hais tias qhov kub thiab txias dhau los yog qis dhau, nws yuav ua rau muaj kev cuam tshuam tsis zoo rau cov khoom, xws li txo cov kev pab cuam lub neej ntawm cov khoom, ua rau cov dej tsis zoo ntawm cov solder, thiab ua rau qaug zog ntawm cov khoom;Yog li ntawd, tswj qhov kub thiab txias lub sij hawm brazing yog tus yuam sij rau cov txheej txheem ntau lawm.

Cov cua hauv lub cub tawg yog ib qho tseem ceeb cuam tshuam rau qhov vuam tus nqi.Txhawm rau tiv thaiv cov flux thiab aluminium qhov chaw los ntawm kev oxidized los ntawm huab cua, qhov ceev ntawm lub mesh tsis tsuas yog txiav txim siab lub sij hawm brazing ntev, tab sis kuj txiav txim siab qhov ntau lawm efficiency.Thaum lub ntim ntawm lub radiator core yog loj, thiaj li yuav tau txais cov cua kub txaus rau txhua cheeb tsam (pre-brazing cheeb tsam, cua sov cheeb tsam thiab brazing cheeb tsam) thaum lub sij hawm brazing txheej txheem.Qhov ceev ntawm lub network yuav tsum tau qeeb qeeb kom qhov kub thiab txias tuaj yeem ncav cuag qhov zoo tshaj plaws tus nqi.Ntawm qhov tsis sib xws, thaum lub ntim ntawm cov tub ntxhais radiator yog me me, qhov ceev ntawm lub network yuav tsum tau ceev ceev.

3. xaus

Radiators tau ntsib peb tiam ntawm txoj kev loj hlob, xws li tooj liab radiators, aluminium fabricated radiators thiab aluminium brazed radiators.Txog tam sim no, aluminium brazed radiators tau dhau los ua tus qauv ntawm lub sijhawm, nrog rau kev txhim kho txuas ntxiv thiab kev vam meej ntawm kev siv tshuab, thiab kev txhim kho cov tsheb sib tw.Aluminium radiators tau dav siv vim lawv muaj zog corrosion kuj, zoo thermal conductivity thiab lub teeb yuag.Nrog rau kev siv dav dav ntawm aluminium radiators, kev tshawb fawb ntawm lub hauv paus ntsiab lus ntawm kev siv tshuab brazing tseem tab tom txhim kho kom yooj yim thiab muaj kev sib txawv, thiab brazing yog ib qho kev siv vuam tshuab tshiab hauv kev lag luam ntawm aluminium radiators.Nws tuaj yeem muab faib ua ob pawg: tsis muaj flux brazing thiab flux brazing.Traditional flux brazing siv cov tshuaj chloride ua flux los rhuav tshem cov oxide zaj duab xis ntawm aluminium nto.Txawm li cas los xij, kev siv cov tshuaj chloride flux yuav ua rau muaj teeb meem corrosion.Txog rau qhov kawg no, lub tuam txhab txhuas tau tsim qhov tsis muaj corrosive flux hu ua Nocolok.txoj kev.Nocolok.Brazing yog qhov kev txhim kho yav tom ntej, tab sis Nocolok.Brazing kuj muaj qee yam kev txwv.Txij li Nocolok.flux yog insoluble nyob rau hauv dej, nws yog ib qho nyuaj rau lub tsho tiv no flux thiab yuav tsum tau qhuav.Nyob rau tib lub sijhawm, cov tshuaj fluoride tuaj yeem hnov ​​​​mob nrog magnesium, uas txwv tsis pub siv cov khoom siv txhuas.Fluoride flux brazing kub yog siab dhau.Yog li ntawd, lub Nocolok.txoj kev tseem yuav tsum tau txhim kho.

【references】

[1] Wu Yuchang, Kang Hui, Qu Ping.Kev tshawb fawb ntawm Cov Kws Tshaj Lij Txheej Txheem ntawm Aluminium Alloy Brazing Txheej Txheem [J].Electric Vuam Tshuab, 2009.

[2] Gu Haiyun.Tshiab Technology ntawm Aluminium Brazed Radiator [J].Mechanical Worker, 2010.

[3] Feng Tao, Lou Songnian, Yang Shanglei, Li Yajiang.Kev tshawb fawb ntawm lub tshuab nqus tsev brazing kev ua tau zoo thiab microstructure ntawm txhuas radiator [J].Pressure Vessel, 2011.

[4] Yu Honghua.Brazing txheej txheem thiab cov khoom siv hauv cua rauv rau aluminium radiator.Electronic Technology, 2009.

tsis lees paub

Cov ntsiab lus saum toj no yog los ntawm pej xeem cov ntaub ntawv hauv Internet thiab tsuas yog siv rau kev sib txuas lus thiab kev kawm hauv kev lag luam.Tsab ntawv yog tus sau txoj kev xav ywj pheej thiab tsis sawv cev rau txoj haujlwm ntawm DONGXU HYDRAULICS.Yog tias muaj teeb meem nrog cov ntsiab lus ntawm kev ua haujlwm, kev cai lij choj, thiab lwm yam, thov hu rau peb hauv 30 hnub ntawm kev tshaj tawm tsab xov xwm no, thiab peb yuav tshem tawm cov ntsiab lus cuam tshuam tam sim ntawd.

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