Thaum vuam cov kav tooj liab cov kav dej, koj yuav tsum xaiv cov vuam tsim nyog (electrode lossis xaim) raws li kev vuam txoj kev, ua kom tuab thiab ua haujlwm. Hauv qab no yog cov lus qhia rau cov khoom siv vuam thiab cov txheej txheem:
I. Tej Txuj Ci Vuam thiab Sib Tham Vuam Consumables
1. Roj vuam (Oxy- acetylene vuam)
Cov Kev Siv Siv Tau:
Nyias -} walled tooj liab kav (thickness tsawg dua los yog sib npaug nrog 3 hli), kav vuam.
Pom zoo Vuam Consumables:
COPPER - phosphorus brazing muab tub lim hlau (bcup series
Nyiaj -} Raws li cov tub pob ncaws pob (lub hnab ntim
Cov kev ceev faj:
Preheat cov yeeb nkab rau 400℃-600℃kom tiv thaiv kom tsis txhob muaj kev kub sai. Cia kom txias ib txwm tom qab vuam kom tsis txhob tawg los ntawm kev txias heev.
2. Tig Vuam (Tungsten Inert Roj Vuam)
Cov Kev Siv Siv Tau:
Nruab nrab - tuab phab ntsa tooj liab kav (tuab ntau dua los yog sib npaug nrog lub zog siab lossis siab dua cov piping).
Pom zoo Vuam Cov Khoom Siv:
Liab Tooj Hlau (Ercu): Ercu, Lub Tshuab Hlau Tooj Liab) yuav tsum muaj kev tiv thaiv Argon.
Silicon bronze wire (ERCuSi-A): Contains 3% silicon and has excellent crack resistance, suitable for welding thick-walled pipes.
Tin bronze hlau (ercusn - a): muaj 5% -8% tin thiab muaj cov felled zoo, haum rau cov pob qij txha ua tau zoo.
Cov kev ceev faj:
Preheat rau 300℃-500℃thiab siv ncaj qha tam sim no (dcen).
Argon purity ntau dua los yog sib npaug rau 99.99%, txaus tus nqi 8-15 L / min.
3. MIG VUAM (HLAU INTER Roj Vuam)
Cov Kev Siv Siv Tau:
Nruab Nrab - tuab phab ntsa tooj liab leeg leeg tshaj lossis sib npaug nrog 4mm), ntau lawm welds, lossis pawg ntau lawm.
Pom zoo Vuam Cov Khoom Siv:
Tooj liab vuam hlau (ERCU): Yuav tsum muaj Argon lossis Helium- Argon Sib tov (nws + ar).
Txhuas tooj ntaus hlau vuam (ercual - A2): Zoo heev Corrosion Kuj, haum rau cov chaw ua tubrog.
Cov kev ceev faj:
Preheat rau 200℃-400℃thiab siv pulsed MIG kom txo tau lub ntsej muag.
Pom zoo roj piv: 75% helium+ 25}% argon (nce nkag).
4. Brazing
Cov Kev Siv Siv Tau:
Nyias -} phab ntsa tooj liab leeg nqaij (tuab tsawg dua los yog sib npaug}
Pom zoo Vuam Cov Khoom Siv:
Tooj liab - phosphorus brazing muab tub lim hlau (bcup series): xws li 6% -7% phosphorus, nrog cov khoom ntiag tug zoo heev.
Nyiaj Txiag Cov Nyiaj (lub hnab ntim khoom): xws li hnab-8 (45% nyiaj), muaj qhov tsis tshua muaj suab thiab yog qhov tsim nyog rau kev siv vuam.
Cov kev ceev faj:
Siv borax - based flux (xws li FB102) tshem tawm cov yeeb yaj kiab oxide.
Ua kom sov thiab kom tsis txhob muaj kev kub ntxhov hauv cheeb tsam.
Ii. Vuam cov ntsiab lus xaiv cov ntsiab lus
Matching lub hauv paus kev sib xyaw hlau: Xav kom zoo nkauj tooj liab lossis solder uas muaj cov deoxidizing (phosphorus, silicon) los txo cov porosity.
Ua haujlwm:
Hluav Taws Xob / Thermal conductivity: Ntshiab Tooj Hlau (Ercu).
Corrosion Kuj: Silicon Bronze (Ercusi- A) lossis Alcual Bronze (Ercual- A2).
Tsawg - kub shadness: Nyiaj solder (hnab-8).
Tus nqi tswj: tooj - phosphorus solder yog tsawg}} tus nqi yog kim kim tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua tau zoo dua tab sis muaj kev ua haujlwm zoo dua.
III. Cov teeb meem thiab kev daws teeb meem
Porosity:
Cause: oxide zaj duab xis tsis raug tshem tawm, tsis muaj kev tiv thaiv pa roj.
Kev daws: txhim kho pre - weld tu thiab nce argon ntws.
Nrig:
Cause: Kev ntxhov siab ntau dhau los yog kev cuam tshuam hauv Weld cov khoom siv.
Kev daws: Preheat cov yeeb nkab thiab siv qis - hydrogen weld khoom (xws li ercusi- a).
Tsis muaj fusion:
Cause: Tsis txaus tshav kub lossis ua kom muaj vuam ceev.
Kev daws: nce qhov tam sim no lossis txo cov vuam root.
Lub tuam txhab muaj pawg ntawm cov coj tooj liab ua ntau lawm cov kab hauv Suav teb, suav nrog:
German tau yog precision tooj liab raj ntau lawm kab (ib xyoos tawm ntawm 30,000 tons)
Japanese technology Tooj liab ntawv tuav kab (thinnest txog li 6μm)
Tsis Siv Neeg Siab Tooj Liab Bar Nruam Extrusion Kab
Cov Ntawv Ntse Copper thiab Sawb Fining Mill Chav Tsev
Digitalized kev tswj hwm thiab kev tswj hwm ntawm tag nrho cov txheej txheem ntau lawm tau pom los ntawm cov khoom siv ntawm cov khoom lag luam, thiab qhov tseeb ntawm cov khoom tuaj yeem ncav cuag ± 0.01 hli.
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