Bimetal silver contact rivets siv nyiaj -raws li kev sib cuag txheej tsuas yog qhov chaw hloov pauv yuav tsum tau, thaum lub shank yog tsim los ntawm qis dua - cov nqi hluav taws xob xws li tooj liab. Piv nrog rau cov khoom siv -silver rivet, cov qauv no tuaj yeem txo cov nyiaj siv thaum khaws cov kev sib cuag ntawm qhov chaw, thiab lub taub hau txias tuaj yeem tsim cov txheej nyiaj thiab cov khoom siv hluav taws xob rau hauv ib qho kev sib koom ua ke.
Rau hluav taws xob OEMs, cov lus nug engineering tsis yog tus nqi nyiaj ib kilogram xwb. Cov qauv nqi tsim nyog suav nrog cov nyiaj loj rau ib feem, nyiaj- txheej tuab, hluav taws xob tiv thaiv kev tiv thaiv, cov khoom siv hluav taws xob muaj zog, qhov ntev ntev, kev hloov lub luag haujlwm, thiab cov khoom tsim tawm.
Cov Nyiaj Them Nqi Tshaj Tawm thiab Cov Khoom Siv -Mass Equation for Ag Contacts
Silver mass, AgSnO2 muaj pes tsawg leeg, thiab IEC 60947 hloov lub luag haujlwm
Qhov nyiaj ntawm ib qho hluav taws xob tiv tauj ncaj qha rau cov khoom siv. Nyob rau hauv ib qho khoom -silver rivet, tag nrho lub cev rivet muaj nyiaj los yog nyiaj alloy. Nyob rau hauv ib tug bimetal tsim, cov nyiaj alloy yog concentrated nyob rau hauv lub ua hauj lwm kev sib cuag lub ntsej muag thaum lub shank txhawb nqa siv tooj liab los yog lwm yam conductive substrate.
Rau ib tus kws tshaj lij kev muag khoom, cov kev suav suav yog:
Tus nqi nyiaj ib feem=nyiaj loj ib feem × nyiaj yuav nqi
Yog li ntawd, txo qhov ntim nyiaj tsis tsim nyog tuaj yeem txo qhov cuam tshuam rau cov khoom muaj txiaj ntsig -hlau tus nqi hloov pauv yam tsis tau hloov pauv cov ntaub ntawv ua haujlwm.
Cov ntaub ntawv tiv tauj ib txwm muaj xws li:
| Tiv tauj cov ntaub ntawv | Hom muaj pes tsawg leeg / qauv | Main engineering xav txog | Common switching ntsiab lus |
|---|---|---|---|
| Pure Ag | Ag Ntau dua lossis sib npaug li 99.9% | High hluav taws xob conductivity; susceptible rau welding nyob rau hauv ib co loads | Kev hloov pauv tam sim no qis mus rau nruab nrab |
| AgSnO₂ | Ag matrix + SnO₂ | Arc erosion kuj thiab vuam tsis kam | Relays, contactors, breakers |
| AgNi | Ag matrix + Ni | Arc cwj pwm thiab hluav taws xob conductivity sib npaug | Relays thiab hloov kev sib cuag |
| Bimetal Ag/Cu | Silver alloy contact txheej + tooj liab shank | Silver loj txo nrog kev txhawb nqa | Relays, keyboards, tswj cov khoom siv |
| Trimetal Ag/alloy/Cu | Tiv tauj txheej + nruab nrab txheej + tooj liab shank | Interface engineering thiab kev faib khoom | Siab dua specification hu sib dhos |
Qhov muaj pes tsawg leeg yog nyob ntawm load tam sim no, voltage, inrush tam sim no, hloov zaus, hluav taws xob lub neej, kev sib cuag quab yuam, thiab arc zog. Ib qho nyiaj qis qis tsis yog los ntawm nws tus kheej ua qauv hluav taws xob sib npaug.
30–50% nyiaj- txuag cov hom phiaj tsim thiab siv cov khoom siv
Rau kev sib cuag bimetal geometries, tsom rau cov nyiaj alloy ntawm lub ntsej muag ua haujlwm tuaj yeem txo cov nyiaj siv piv nrog cov khoom siv - nyiaj. Lub hom phiaj tsim ntawm 30-50% nyiaj txuag yuav ua tiav rau cov geometries xaiv, tab sis qhov feem pua ntawm cov nyiaj yuav tsum raug xam los ntawm qhov kawg nyiaj ntim thiab txheeb xyuas cov khoom qub - hu rau tus tsim.
Kev suav yuav tsum yog nyob ntawm:
- Nyiaj - txheej thickness hauv mm lossis μm
- Hu rau lub taub hau taub hauv mm
- Nyiaj alloy ceev hauv g / cm³
- Copper shank ntim hauv mm³
- Ua tiav qhov hnyav hauv mg lossis g
- Cov khoom yield tom qab txias taub hau
- Qhov kawg dimensional kam rau ua mm
Txoj hauv kev no muab cov pab pawg muag khoom ntsuas tus nqi ntsuas tau- tus qauv qis dua tsis yog kev cia siab rau qhov nominal "nyiaj-txuag" feem pua.
Thov Kev Ntsuam Xyuas DFM Dawb & Tso Cai
Txias -Heading Bimetal thiab Trimetal Kev Tsim Kho Hauv qab ± 0.005–0.02 mm Txheej Txheej Txheem
Bimetal txias taub hau, nyob rau hauv - tuag forming, thiab IEC 60947 tiv tauj geometry
Lub taub hau txias ua rau lub taub hau tiv tauj thiab shank los ntawm kev tswj cov yas deformation es tsis yog siv cov geometry zaum kawg los ntawm cov khoom bar. Rau bimetal silver contact rivets, cov txheej txheem yuav tsum tswj qhov sib cuam tshuam ntawm cov nyiaj alloy thiab tooj liab substrate thaum upsetting, nqe lus, trimming, thiab kawg sib sau.
Cov txheej txheem tseem ceeb variables muaj xws li:
- Nyiaj - txheej thickness:tswj raws li kev sib cuag tsim.
- Txoj kab uas hla:cuam tshuam cov khoom ntws thiab lub taub hau ntim.
- Heading txo:txiav txim siab deformation thiab interface siab.
- Tool clearance:influences flash, cracking, thiab dimensional variation.
- Lubrication:cuam tshuam kev sib txhuam thiab cov khoom ntws.
- Tuag alignment:tswj concentricity ntawm kev sib cuag txheej thiab shank.
- Lub taub hau kawg geometry:yuav tsum phim lub relay los yog switching mechanism.
Rau siab - ntim ntau lawm, kev tsim kho zuj zus thiab kev tshuaj xyuas tsis siv neeg tuaj yeem txo qhov sib txawv ntawm tus neeg rivets.
AgSnO2 88/12, AgNi, thiab nyiaj-txheej txheej xaiv los ntawm kev hloov pauv
Tsis txhob xaiv AgSnO2 thiab AgNi nkaus xwb vim lawv muaj nyiaj. Lawv cov kev hloov pauv txawv vim tias cov khoom siv oxide thiab npib tsib xee cuam tshuam rau arc yaig, vuam nyiam, hardness, thiab cov khoom hloov pauv.
| Parameter | AgSnO2 | AgNi | Pure Ag |
|---|---|---|---|
| Yam khoom tsev neeg | Silver-tin oxide | Nyiaj-nickel | High-purity nyiaj |
| Hluav taws xob conductivity | Tsawg dua cov ntshiab Ag | Tsawg dua cov ntshiab Ag | Siab tshaj ntawm peb |
| Arc erosion kuj | Feem ntau haum rau xav tau kev hloov pauv | Txaus siab rau cov haujlwm relay xaiv | Ntau txwv nyob rau hauv hnyav arcing |
| Vuam kuj | Txhim kho los ntawm oxide theem | Txhim kho los ntawm Ni theem | Ntau raug nyob rau hauv ib co loads |
| Hardness | Siab dua Ag | Siab dua Ag | qis |
| Kev siv hluav taws xob zoo | Relays, contactors, breakers | Relays thiab hloov khoom siv | Conductive kev sib cuag interfaces |
Qib AgSnO2 tiag tiag, xws li 88/12 nominal Ag/SnO2 system, yuav tsum tau teev ua ke nrog rau cov qauv siv thiab cov khoom siv daim ntawv pov thawj.
Trimetal contact point thiab intermediate -layer engineering
Ib qho kev sib cuag trimetal tuaj yeem ua kom paub cov khoom nruab nrab ntawm kev sib cuag alloy thiab tooj liab shank. Cov txheej txheem nruab nrab tuaj yeem siv los tswj kev deformation, kev sib txuas tus cwj pwm, thermal expansion, lossis cov khoom siv diffusion.
Rau kev yuav khoom specification, daim duab yuav tsum txheeb xyuas:
- Hu rau alloy
- Cov khoom nruab nrab- txheej
- Shank khoom
- Tus kheej txheej thickness
- Tag nrho lub taub hau qhov siab
- Rivet taub
- Txoj kab uas hla
- Concentricity kam rau ua
- Deg mob
- Yuav tsum tau siv tshuab kuaj txoj kev
Tsis txhob kho qhov kev tsim kho trimetal raws li kev hloov kho kom zoo nkauj ntawm bimetal rivet. Cov txheej txheem sib txuas hloov pauv tus cwj pwm deformation thaum lub caij txias thiab yog li yuav tsum tau ua kom tiav cov txheej txheem.
Txias-Heading Bond Integrity: Tiv thaiv kev sib cais thiab kev sib cuag lub taub hau
Interface siab, deformation piv, thiab ASTM E8 / ISO 6892 xeem logic
Lub taub hau txias ua rau cov neeg kho tshuab siab ntawm kev sib tshuam ntawm cov hlau tsis sib xws. Lub qhov rais txheej txheem yuav tsum dav txaus kom ua tiav kev sib raug zoo yam tsis muaj kev tsim cov kab nrib pleb, ntau dhau flash, lossis cov khoom tsis ruaj khov.
Peb qhov sib txawv yuav tsum tau saib xyuas tshwj xeeb:
- Interface siab:Tsis txaus deformation tuaj yeem ua rau muaj kev sib txuas tsis muaj zog lossis voids. Kev deformation ntau dhau tuaj yeem ua rau tawg lossis tsis tswj cov khoom hloov chaw.
- Txo tus nqi:Qhov kev sib raug zoo ntawm qhov loj me me thiab qhov kawg lub taub hau geometry txiav txim siab tus nqi ntawm cov yas deformation.
- Khoom hardness:Qhov sib txawv hardness ntau dhau ntawm kev sib cuag alloy thiab tooj liab substrate tuaj yeem hloov qhov deformation ib ntus.
Mechanical qualification yuav tsum qhia meej txog txoj kev xeem, piv txwv geometry, loading kev taw qhia, thiab qhov chaw tsis ua hauj lwm. ASTM E8 lossis ISO 6892 tej zaum yuav muaj feem cuam tshuam rau kev kuaj xyuas cov khoom siv hlau, tab sis kev txiav rivet tshwj xeeb lossis rub tawm -txoj kev tawm tuaj yeem yog tus sawv cev ntau dua rau kev sib cuag tiav.
Hauv - tuag riveting thiab concentricity ntawm ± 0.01 hli
Hauv - tuag forming tuaj yeem sib sau ua ke ntau yam kev ua haujlwm rau hauv kev tswj hwm ib ntus. Rau kev sib cuag hluav taws xob, concentricity ntawm thaj tsam nyiaj thiab tooj liab shank cuam tshuam rau ob qho tib si sib dhos thiab siv cov khoom siv.
Kev tshuaj xyuas yuav muaj xws li:
- Txoj kab uas hla: mm
- Lub taub hau taub: mm
- Lub taub hau qhov siab: mm
- Nyiaj - txheej thickness: μm
- Concentricity: hli
- Burr qhov siab: μm
- Nto roughness: Ra μm
Kev tshuaj xyuas qhov muag tsis pom kev tuaj yeem txheeb xyuas qhov dav ntawm qhov nrawm ntawm kev tsim khoom, thaum ua piv txwv nrog CMM cov cuab yeej muab siab dua - qhov kev daws teeb meem qhov tseeb rau cov yam ntxwv tseem ceeb.
RoHS, REACH, IATF 16949, thiab cov ntaub ntawv traceability
Rau kev siv tsheb thiab hluav taws xob, kev ua raws li cov khoom siv yuav tsum tau txuas nrog cov khoom siv tiag tiag.
Lub traceability system yuav tsum txuas:
Raw khoom ntau → txias-heading batch → tooling condition → check record → packing lot → shipping
Yog tias tsim nyog, cov ntaub ntawv yuav suav nrog:
- Cov ntaub ntawv pov thawj
- RoHS tshaj tawm
- REACH tshaj tawm
- Plating lossis nto -cov ntaub ntawv kho mob
- Dimensional soj ntsuam daim ntawv qhia
- Mechanical test report
- Daim ntawv ntsuam xyuas hluav taws xob
- Ntau lawm batch naj npawb
Cov ntaub ntawv no yog qhov tshwj xeeb tshaj yog thaum tib qhov kev sib cuag geometry tau muab los ntawm ntau lub relay lossis hloov lub platform.
Bimetal vs Trimetal vs Khoom Khoom: Cov Nqi Muag Khoom thiab Cov Txheej Txheem Sib Piv
Kev siv nyiaj, machining poob, thiab ASTM B117 ib puag ncig kuaj
Tus nqi ntawm cov khoom yuav tsum raug soj ntsuam ua ke nrog kev tsim tawm. Machining ib qho khoom siv -silver Cheebtsam tuaj yeem tsim cov chips thiab cov txheej txheem pov tseg, thaum cov ntaub ntawv txias nyob ze -net-cov duab geometry nrog ntau yam khoom siv sib txawv.
Kev ntsuam xyuas ib puag ncig xws li ASTM B117 tuaj yeem cuam tshuam rau kev ntsuam xyuas corrosion thaum sib cuag nrog cov khoom siv hluav taws xob, cov coatings, lossis qhov sib txawv ntawm -hlau interfaces. ASTM B117 cov txiaj ntsig yuav tsum tsis txhob raug txhais raws li kev kwv yees ncaj qha ntawm hluav taws xob hloov lub neej.
| Qhov xwm txheej | Khoom nyiaj rivet | Bimetal nyiaj rivet | Trimetal contact point |
|---|---|---|---|
| Kev siv nyiaj | High silver ntim | Txo nyiaj ntim | Tswj nyiaj ntim |
| Khoom siv | Ib qho khoom siv / alloy | Nyiaj + tooj liab lossis substrate | Nyiaj + nruab nrab txheej + substrate |
| Txias taub hau | Ua tau nyob ntawm alloy | Txoj kev ntau lawm | Yuav tsum muaj cov cuab yeej tshwj xeeb interface |
| Interface suav | Tsawg | Ib lub ntsiab interface | Ob lossis ntau qhov khoom siv interfaces |
| Nyiaj-nqi raug | Siab dua | Lower rau haum geometry | Lower rau haum geometry |
| Txheej txheem complexity | Cov khoom siv qis dua | Nruab nrab | Siab dua |
| Kev tswj xyuas kom pom tseeb | Geometry thiab alloy | Kev sib txuas + geometry | Bonding + txheej txheej txheej + geometry |
| Lub hauv paus kev xaiv zoo tshaj plaws | Cov khoom siv hluav taws xob xav tau | Kev txo qis nyiaj + txhais lub ntsej muag | Interface thiab deformation xav tau |
Tus nqi khoom qis tshaj plaws tsis tas yuav yog tus nqi qis tshaj plaws tag nrho. Cov khoom pov tseg, lub neej ntawm lub cuab yeej, cov khoom sib dhos, lub sijhawm tshuaj xyuas, kev tsim hluav taws xob tsim nyog, thiab daim teb - qhov pheej hmoo rov qab yuav tsum suav nrog hauv cov qauv kev yuav khoom.
Cold heading vs. tig rau siab -volume hluav taws xob tiv tauj
| Txoj kev tsim khoom | Kev siv cov khoom siv | Cycle economics | Nto/geometry tswj | Hom ntim haum |
|---|---|---|---|---|
| CNC tig | Cov khoom tshem tawm | Tus nqi siab dua rau cov khoom me me | Strong dimensional yooj | Prototype / tsawg ntim |
| Txias taub hau | Ze-net txoj kev | High productivity | Yuav tsum tau siv cov cuab yeej tshwj xeeb | Nruab nrab / siab ntim |
| Progressive stamping | Zoo heev rau cov qauv ntawv | High productivity | Haum rau cov khoom tiaj tus | Siab ntim |
| Lub taub hau txias + kev sib sau thib ob | Siab | Sib npaug | Txhawb nqa complex rivet geometry | Cov khoom ntim siab heev |
Rau me me hluav taws xob sib cuag rivets, kev lag luam kom zoo ntawm lub taub hau txias ua qhov tseem ceeb dua li qhov kev thov txhua xyoo nce vim tias cov cuab yeej siv tau raug faib thoob plaws ntau qhov ntau lawm.
Download Contact Design Specification
Final Engineering Takeaway: Nyiaj yuav tsum tau muab tso rau qhov chaw hloov pauv hloov xav tau
Bimetal thiab trimetal silver rivets muab cov khoom siv - engineering txoj kev los txo cov nyiaj tsis tsim nyog ntim thaum tuav ib qho kev sib cuag hluav taws xob. Tus nqi txo yog los ntawm kev tswj cov nyiaj loj, tsis yog los ntawm kev hloov cov hlau pheej yig dua rau hauv qhov chaw sib cuag.
Rau hluav taws xob OEM cov kev pab cuam, qhov kev ntsuam xyuas yuav tsum yog li ntawd muab cov AgSnO2 / AgNi cov khoom xaiv, nyiaj- txheej thickness, txias- taub hau deformation, interface daim ntawv cog lus muaj zog, tiv tauj tsis kam, qhov ntev, hluav taws xob- kuaj lub neej, thiab ntau traceability.
Rau siab - ntim ntau lawm, txoj kev tsim khoom nyiam yuav tsum raug xaiv tsuas yog tom qab ua tiav ib feem ntawm kev lag luam: kev siv cov khoom siv, kev siv cuab yeej, lub sijhawm voj voog, kev tshuaj xyuas, cov khoom lag luam, cov nqi tsim nyog, thiab kev thov txhua xyoo.
Cov lus nug nquag nug txog Bimetallic Rivet Contact
Nyiaj- txheej thickness ntsuas li cas nyob rau hauv bimetal silver contact rivets?
Nyiaj- txheej tuab yog ib txwm txheeb xyuas los ntawm metallographic cross-section, calibrated optical ntsuas, los yog lwm yam validated txoj kev soj ntsuam. Daim duab kos yuav tsum txhais cov thickness yuav tsum tau nyob rau hauv μm thiab qhov tso cai kam rau ua.
Bimetal silver contact rivets puas tuaj yeem txo cov nyiaj siv los ntawm 30-50%?
Kev txo qis 30-50% tuaj yeem ua tiav rau cov geometry xaiv thaum cov nyiaj txheej yog concentrated ntawm lub ntsej muag ua haujlwm. Qhov kev txuag tiag tiag yuav tsum suav los ntawm qhov ntim nyiaj tiav thiab raug lees paub tiv thaiv cov khoom qub -silver design.
Cov ntaub ntawv dab tsi yuav tsum yog tus neeg yuav khoom thov los ntawm IATF 16949 tiv tauj - tus xa khoom rivet?
Thov daim ntawv pov thawj IATF 16949, daim ntawv pov thawj khoom siv, RoHS/REACH cov lus tshaj tawm, daim ntawv tshaj tawm qhov ntev, cov ntaub ntawv kuaj xyuas kev sib cuag, tiv tauj-cov txiaj ntsig kev tawm tsam, txheej txheem- tswj cov ntaub ntawv, thiab tsim khoom- ntau cov ntaub ntawv taug qab.
tiv tauj peb
Rau ib qho kev hais nrawm raubimetal silver contact rivets, xa CAD daim duab, cov khoom yuav tsum tau, ntim txhua xyoo, thiab lub hom phiaj hluav taws xob lub luag hauj lwm rau kev tshuaj xyuas thiab cov nqi tsim khoom.
