Copper alloys tau siv dav hauv cov khoom siv hluav taws xob, cov khoom siv tsheb, thiab cov khoom siv hauv tsev vim lawv cov hluav taws xob zoo heev, kev tiv thaiv corrosion, thiab cov khoom siv kho tshuab. Txawm li cas los xij, cov yam ntxwv tib yam no ua rau qhov chaw vuam nyuaj nyuaj dua piv nrog cov hlau lossis txhuas.
Kev ua tiav siab -welds zoo yuav tsum nkag siab tus cwj pwm ntawm tooj liab alloy thiab siv cov tswv yim vuam zoo. Phau ntawv qhia no piav qhia yuav ua li cas weld tooj liab alloys zoo siv aqhov chaw vuam tshuab, nrog cov ntaub ntawv- txhawb kev nkag siab thiab cov tswv yim daws teeb meem rau kev tsim khoom lag luam.
Vim li cas tooj liab Alloys nyuaj rau Spot Weld
Copper thiab tooj liab alloys tam sim no tshwj xeeb vuam cov nyom:
1. Cov khoom siv hluav taws xob siab heev
Copper alloys ua cua sov 7-11 zaug sai dua carbon steel.
→ Thaum tshav kub kub diffuses deb ntawm qhov chaw weld tam sim ntawd, ua rau kev tsim nugget nyuaj.
2. Tsawg hluav taws xob tsis kam
Tsawg tsis kam ua rau tam sim no dhau los ntawm kev yooj yim heev, txo cov hluav taws kub ntawm qhov sib koom ua ke.
→ Qhov no yuav ua rau muaj qhov tsis muaj zog welds lossis tsis txaus fusion.
3. Ceev ceev cua txias
Kev ua kom txias sai sai tuaj yeem ua rau cov porosity, tawg, thiab tsis sib xws nugget kev loj hlob -tshwj xeeb tshaj yog nyob rau hauv tooj dag, bronze, thiab siab - zinc alloys.
Vim yog cov xwm txheej no, tus qauv chaw vuam tshuab teeb tsa rau hlau tsis haum rau tooj liab alloys. Tshwj xeeb electrodes thiab meej parameter tswj yog qhov tseem ceeb.
Xaiv txoj cai Electrodes rau Copper Alloy Vuam
1. Xaiv cov khoom tsim los rau siab -Conductivity hlau
Tso cai welding cov txheej txheem pom zoo:
| Copper Alloy Hom | Pom zoo Electrode |
|---|---|
| High -conductivity (piv txwv li, Cu-Cr, Cu-Zr) |
Class 1 electrodes (dispersion- zog tooj liab) |
| Tsawg- conductivity alloys (brasses, bronzes) | Class 2 tooj liab alloy electrodes |
Kev xaiv electrode kom raug kom ruaj khov tam sim no thiab txo cov cua sov.
2. Siv Composite Electrodes nrog tungsten Inserts
Rau kev nyuaj tooj liab alloy vuam daim ntaub ntawv:
- Tungsten ntxig electrodes txo qhov kub poob rau hauv cov electrode.
- tungsten muaj qhov melting point3420 degree, tseem ceeb tshaj tooj liab.
- Pom zoo tungsten taub txoj kab uas hla:3-4 mm.
- Zoo heev txhim kho nugget tsim thiab txo cov electrode sticking.
Cov kev daws teeb meem electrode no tau siv dav hauv kev tsim tsheb thiab hluav taws xob.
Optimizing Vuam Parameters rau Copper Alloy Spot Vuam
Txhawm rau ua kom ruaj khov welds, kojqhov chaw vuam tshuabyuav tsum tau configured nrog meej tsis.
1. Lub sijhawm tam sim no thiab vuam
- Siv qis ncov tam sim no piv nrog steel vuam.
- Shorten weld lub sij hawm kom tswj tau cov cua kub tawm tswv yim.
- MFDC (Medium Frequency Direct Current) systems muab kev tswj zoo dua rau cov ntawv nyias (<1.5 mm).
- Zoo- yuav tsum tau kho kom haum rau txhua hom tooj liab alloy vim tias cov khoom hluav taws xob / thermal sib txawv heev.
2. Cov lus qhia ua kom zoo tshaj plaws
- Ntxuav lub ntsej muag kom huv si kom tshem tau cov roj, oxides, plua plav, thiab plating khib nyiab.
- Siv lub zog nyem txaus los xyuas kom muaj kev sib cuag ruaj khov.
- Siv cov cua sov-insulating shims lossis interlayers thaum xav tau.
- Xyuas kom lub vuam system thiab quab yuam tswj tau calibrated tsis tu ncua.
Troubleshooting Common Copper Alloy Welding Teeb meem
1. Electrode Sticking
Ua rau:
- Tshaj kub ntawm lub interface
- Electrode softening los yog paug
Kev daws:
- Ntxiv tungsten composite electrodes
- Txo tam sim no / txo lub sijhawm vuam
- Txhim kho cov cua txias thiab ua cov khoom siv hluav taws xob ntau zaus
2. Tsis txaus Weld Strength
Ua rau:
- Thaum tshav kub kub diffuses sai heev
- Poor nugget loj hlob
Kev daws:
- Ntxiv dag zog
- Me ntsis ncua sij hawm weld
- Xyuas kom cov zis zoo ib yam los ntawm cov khoom siv welding
- Ntxuav lub workpiece kom huv si
Cov kev coj ua zoo tshaj plaws rau kev sib xyaw tooj liab Alloy Weld Zoo
Txhawm rau tuav ntev -lub sij hawm ruaj khov thiab rov ua dua:
- Tsim cov khoom siv - tshwj xeeb parameter nkhaus
- Tshawb xyuas thiab hnav cov electrodes tsis tu ncua
- Khiav kev xeem welds rau txhua pawg tshiab ntawm alloy
- Sau cov kev ua tiav parameter ua ke
- Saib xyuas qhov sib txawv ntawm qhov vuam tam sim no, quab yuam, thiab nugget loj
Cov kev coj ua no txo qis qhov ua tsis tiav hauv huab hwm coj- ib puag ncig tsim khoom.
Kev Ua Haujlwm Zoo thiab Cov Txheej Txheem Kev Xeem
Yuav kom validate weld kev ntseeg tau:
- Kev kuaj kev puas tsuaj (shear, nro, hla-section soj ntsuam)
- Peel kev ntsuam xyuas kom paub meej tias txoj kab uas hla thiab fusion
- Kev kuaj pom pom kev tawg, porosity, thiab overheating
- Parameter sib xws soj ntsuam ntawm tus maub los thiab transformer
Kev sau cov txiaj ntsig no pab tswj cov qauv ntawv pov thawj thiab cov kev xav tau zoo thoob ntiaj teb.
Xaus
Nrog rau cov ntaub ntawv electrode kom raug, optimized txheej txheem kev teeb tsa, thiab kev tswj xyuas zoo, aqhov chaw vuam tshuabtuaj yeem ua tau zoo thiab txhim khu kev qha welds ntawm tooj liab alloys. Los ntawm kev tswj cov cua sov ntws, stabilizing siab, thiab tiv thaiv electrode degradation, manufacturers tuaj yeem kov yeej cov teeb meem ntawm cov tooj liab alloy vuam.
Mastering cov tswv yim no tsis yog tsuas yog txhim kho vuam kev ua tau zoo tab sis kuj txhim kho cov khoom ruaj khov thiab cov khoom sib xws hauv kev lag luam xws li hluav taws xob, tsheb, lub zog cia, thiab cov khoom siv hluav taws xob.
