Resistance welding yog ib qho kev txhim khu kev qha, tsis tshua muaj nqi, thiab siv tau zoo ntawm kev sib koom ua ke ob lossis ntau daim hlau ua ke.Thaum tsis kam vuam yog cov txheej txheem vuam tiag tiag, tsis muaj hlau muab tub lim, tsis muaj roj vuam.Tsis muaj cov hlau ntau dhau los tshem tawm tom qab vuam.Txoj kev no yog tsim rau kev tsim khoom loj.Cov welds yog ruaj thiab NW nyuam qhuav pom.

Keeb kwm, kev siv vuam vuam tau siv tau zoo los koom nrog cov hlau tsis muaj zog xws li hlau thiab npib tsib xee alloys.Cov hluav taws xob ntau dua thiab thermal conductivity ntawm tooj liab alloys ua rau vuam ntau dua, tab sis cov khoom siv vuam siv feem ntau muaj peev xwm ua rau cov hlau no muaj qhov zoo zoo tag nrho.Nrog rau cov txheej txheem vuam zoo, beryllium tooj liab tuaj yeem welded rau nws tus kheej, mus rau lwm yam tooj liab alloys, thiab rau hlau.Copper alloys tsawg dua 1.00mm tuab yog feem ntau yooj yim rau vuam.

Resistance vuam txheej txheem feem ntau siv rau vuam beryllium tooj liab Cheebtsam, chaw vuam thiab projection welding.Lub thickness ntawm lub workpiece, cov khoom siv alloy, cov cuab yeej siv thiab cov txheej txheem saum npoo yuav tsum txiav txim siab qhov tsim nyog rau cov txheej txheem.Lwm cov txheej txheem kev siv vuam vuam siv feem ntau, xws li nplaim vuam, taub qab vuam, vuam vuam, thiab lwm yam, tsis yog siv rau tooj liab alloys thiab yuav tsis tham txog.Copper alloys yooj yim rau braze.

Cov yuam sij hauv kev ua haujlwm vuam yog tam sim no, siab thiab lub sijhawm.Kev tsim cov khoom siv hluav taws xob thiab kev xaiv cov khoom siv electrode yog qhov tseem ceeb heev rau kev lees paub ntawm vuam zoo.Txij li thaum muaj ntau cov ntaub ntawv ntawm kev tiv thaiv vuam ntawm cov hlau, ntau qhov yuav tsum tau ua rau vuam beryllium tooj liab qhia ntawm no xa mus rau tib lub thickness.Kev tiv thaiv vuam tsis yog ib qho kev tshawb fawb tseeb, thiab cov khoom siv vuam thiab cov txheej txheem muaj kev cuam tshuam zoo rau kev vuam zoo.Yog li ntawd, nthuav tawm ntawm no raws li ib qho kev qhia nkaus xwb, ib qho kev ntsuam xyuas vuam siv tau los txiav txim siab qhov zoo tshaj plaws vuam kev mob rau txhua daim ntawv thov.

Vim tias feem ntau ntawm cov khoom ua haujlwm saum npoo av muaj cov hluav taws xob ua haujlwm siab, qhov saum npoo yuav tsum tau ntxuav tas li.Cov kab mob kis tau tuaj yeem ua rau qhov kub thiab txias ntawm cov electrode, txo lub neej ntawm cov hlau electrode, ua rau cov khoom siv tsis zoo, thiab ua rau cov hlau sib txawv ntawm qhov chaw vuam.ua rau welding cuav lossis residue.Cov roj nyias nyias los yog cov khoom khaws cia yog txuas rau saum npoo, uas feem ntau tsis muaj teeb meem nrog kev ua haujlwm vuam, thiab beryllium tooj liab electroplated rau ntawm qhov chaw muaj teeb meem tsawg tshaj plaws hauv vuam.

Beryllium tooj liab nrog ntau tshaj uas tsis yog-greasy los yog flushing los yog stamping lubricants yuav hnyav ntxuav.Yog hais tias qhov saum npoo yog xeb heev los yog qhov saum npoo yog oxidized los ntawm kev kho cua sov, nws yuav tsum tau ntxuav kom tshem tawm cov oxide.Tsis zoo li cov xim liab liab-xim av tooj liab oxide, pob tshab beryllium oxide ntawm lub strip nto (tsim los ntawm kev kho cua sov hauv ib qho inert lossis txo cov roj) yog qhov nyuaj rau kev kuaj xyuas, tab sis kuj yuav tsum tau muab tshem tawm ua ntej vuam.

Beryllium tooj liab alloy

Muaj ob hom beryllium tooj liab alloys.Lub zog muaj zog beryllium tooj liab alloys (Alloys 165, 15, 190, 290) muaj lub zog siab dua li cov tooj liab alloy thiab tau siv dav hauv cov khoom siv hluav taws xob, cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob.Cov hluav taws xob thiab thermal conductivity ntawm no high-strength alloy yog hais txog 20% ​​ntawm cov ntshiab tooj liab;high-conductivity beryllium tooj liab alloys (alloys 3.10 thiab 174) muaj qis zog, thiab lawv cov hluav taws xob conductivity yog li ntawm 50% ntawm cov ntshiab tooj liab, siv rau lub hwj chim connectors thiab relays.Lub zog siab beryllium tooj liab alloys yooj yim dua rau kev tiv thaiv vuam vim lawv cov hluav taws xob qis dua (lossis siab dua resistivity).

Beryllium tooj liab tau txais nws lub zog siab tom qab kev kho cua sov, thiab ob qho tib si beryllium tooj liab alloys tuaj yeem nkag rau hauv pre-rhuab los yog kub-kho lub xeev.Vuam ua haujlwm feem ntau yuav tsum tau muab rau hauv qhov chaw kho cua sov.Kev ua haujlwm vuam feem ntau yuav tsum tau ua tom qab kev kho cua sov.Hauv kev ua haujlwm vuam ntawm beryllium tooj liab, lub tshav kub cuam tshuam yog feem ntau me me, thiab nws tsis tas yuav muaj beryllium tooj liab workpiece rau kev kho cua sov tom qab vuam.Alloy M25 yog cov khoom siv dawb-txiav beryllium tooj liab qws.Txij li cov hlau no muaj cov hlau lead, nws tsis haum rau kev ua haujlwm vuam.

Resistance qhov chaw vuam

Beryllium tooj liab muaj qis resistivity, siab dua thermal conductivity thiab coefficient ntawm expansion dua hlau.Zuag qhia tag nrho, beryllium tooj liab muaj tib yam lossis siab zog dua li cov hlau.Thaum siv qhov chaw vuam (RSW) beryllium tooj liab nws tus kheej los yog beryllium tooj liab thiab lwm yam alloys, siv cov vuam tam sim no ntau dua, (15%), qis voltage (75%) thiab luv vuam lub sij hawm (50%).Beryllium tooj liab tiv taus siab dua vuam ntau dua li lwm cov tooj liab alloys, tab sis teeb meem kuj tuaj yeem tshwm sim los ntawm kev kub siab heev.

Yuav kom tau txais cov txiaj ntsig zoo sib xws hauv cov khoom siv tooj liab, cov khoom siv vuam yuav tsum muaj peev xwm tswj tau lub sijhawm thiab tam sim no, thiab AC vuam cov cuab yeej yog qhov nyiam vim nws qhov kub thiab txias ntawm electrode.Vuam lub sij hawm ntawm 4-8 cycles ua tau zoo dua.Thaum welding hlau nrog zoo sib xws expansion coefficients, qaij vuam thiab overcurrent welding tuaj yeem tswj qhov nthuav dav ntawm cov hlau kom txwv tsis pub muaj kev phom sij ntawm vuam tawg.Beryllium tooj liab thiab lwm yam tooj liab alloys yog welded tsis tilting thiab overcurrent vuam.Yog hais tias inclined welding thiab overcurrent welding yog siv, tus naj npawb ntawm lub sij hawm nyob ntawm seb lub thickness ntawm lub workpiece.

Nyob rau hauv qhov chaw tsis kam vuam ntawm beryllium tooj liab thiab hlau, los yog lwm yam hlau tsis kam, zoo thermal tshuav nyiaj li cas yuav tau los ntawm kev siv electrodes nrog me me qhov chaw ntawm ib sab ntawm beryllium tooj liab.Cov khoom siv electrode nyob rau hauv kev sib cuag nrog beryllium tooj liab yuav tsum muaj ntau dua conductivity tshaj lub workpiece, ib tug RWMA2 pab pawg neeg electrode yog haum.Refractory hlau electrodes (tungsten thiab molybdenum) muaj cov ntsiab lus melting siab heev.Tsis muaj qhov xav tau los lo rau beryllium tooj liab.13 thiab 14 ncej electrodes kuj muaj.Qhov zoo ntawm cov hlau refractory yog lawv lub neej ua haujlwm ntev.Txawm li cas los xij, vim qhov hardness ntawm xws li alloys, qhov chaw puas tuaj yeem ua tau.Dej-txias electrodes yuav pab tswj qhov kub thiab txias lub neej ntawm electrode.Txawm li cas los xij, thaum vuam ntu nyias ntawm beryllium tooj liab, kev siv cov dej txias electrodes tuaj yeem ua rau quenching ntawm cov hlau.

Yog hais tias lub thickness sib txawv ntawm lub beryllium tooj liab thiab lub siab resistivity alloy yog ntau tshaj 5, projection welding yuav tsum tau siv vim tsis muaj cov tswv yim thermal tshuav nyiaj li cas.

Resistance projection vuam

Ntau qhov teeb meem ntawm beryllium tooj liab nyob rau hauv qhov chaw welding tuaj yeem daws tau nrog kev ua haujlwm vuam (RpW).Vim nws qhov chaw me me thaum tshav kub kub cuam tshuam, ntau yam haujlwm tuaj yeem ua tau.Cov hlau sib txawv ntawm cov thicknesses sib txawv yog yooj yim rau vuam.Dav hla ntu electrodes thiab ntau cov duab electrode yog siv los tiv thaiv qhov projection vuam kom txo tau deformation thiab ua raws.Electrode conductivity yog qhov teeb meem tsawg dua nyob rau hauv qhov chaw welding.Feem ntau siv yog 2, 3, thiab 4-ncej electrodes;qhov nyuaj ntawm electrode, lub neej ntev.

Softer tooj liab alloys tsis dhau kev tiv thaiv qhov projection vuam, beryllium tooj liab muaj zog txaus los tiv thaiv lub pob tawg ntxov ntxov thiab muab qhov ua tiav zoo heev.Beryllium tooj liab kuj tuaj yeem ua qhov projection welded ntawm thicknesses hauv qab 0.25mm.Raws li nrog rau qhov chaw vuam, cov khoom siv AC feem ntau yog siv.

Thaum cov hlau tsis sib xws, cov pob yog nyob rau hauv cov khoom siv hluav taws xob ntau dua.Beryllium tooj liab yog malleable txaus rau xuas nrig ntaus los yog extrude yuav luag txhua tus duab convex.Xws li cov duab ntse heev.Lub beryllium tooj liab workpiece yuav tsum tau tsim ua ntej kev kho cua sov kom tsis txhob tawg.

Zoo li qhov chaw vuam tsis kam, beryllium tooj liab kuj projection vuam txheej txheem ib txwm xav tau ntau dua amperage.Lub hwj chim yuav tsum tau muaj zog ib ntus thiab siab txaus ua rau lub protrusion yaj ua ntej nws tawg.Vuam siab thiab lub sij hawm raug kho los tswj lub pob tawg.Vuam siab thiab lub sij hawm kuj nyob ntawm pob geometry.Lub siab tawg yuav txo qhov tsis xws ntawm vuam ua ntej thiab tom qab vuam.

Kev nyab xeeb tuav ntawm Beryllium Copper

Zoo li ntau cov khoom siv hauv kev lag luam, beryllium tooj liab tsuas yog muaj kev phom sij rau kev noj qab haus huv thaum ua haujlwm tsis raug.Beryllium tooj liab muaj kev nyab xeeb tag nrho hauv nws cov khoom ib txwm muaj, hauv cov khoom tiav, thiab hauv kev tsim khoom feem ntau.Txawm li cas los xij, hauv ib feem me me ntawm cov tib neeg, kev nqus tau cov khoom zoo tuaj yeem ua rau lub ntsws tsis zoo.Siv cov kev tswj xyuas engineering yooj yim, xws li kev ua haujlwm venting uas tsim cov plua plav zoo, tuaj yeem txo qhov phom sij.

Vim tias cov vuam yaj yog me me thiab tsis qhib, tsis muaj kev phom sij tshwj xeeb thaum cov txheej txheem beryllium tooj liab kuj tswj tau.Yog tias yuav tsum tau ua cov txheej txheem tu tshuab tom qab soldering, nws yuav tsum tau ua los ntawm kev nthuav tawm cov haujlwm rau ib puag ncig zoo.