Hauv cov tsev niaj hnub thiab cov tshuab hluav taws xob muaj hluav taws xob, cov khoom siv hluav taws xob me me (MCBs) ua cov khoom tseem ceeb rau kev tiv thaiv davhlau ya nyob twg, ua ntau yam kev tiv thaiv kev nyab xeeb xws li overload, luv Circuit Court, thiab txawm overvoltage. Lawv txoj kev ntseeg siab tsis yog nyob ntawm qhov rhiab heev thiab kev tsim qauv ntawm cov txheej txheem tripping tab sis kuj tseem ceeb dua, ntawm kev ruaj ntseg ntawm kev sib cuag hluav taws xob sab hauv-tshwj xeeb yog qhov zoo ntawm cov ntaub ntawv tseem ceeb thiab cov txheej txheem sib txuas. Raws li MCBs hloov zuj zus mus rau qhov muaj peev xwm tawg ntau dua, lub neej hluav taws xob ntev dua, thiab kev ua haujlwm me me, cov kev xav tau siab dua tau muab tso rau ntawm cov khoom siv hluav taws xob, arc yaig tsis kam, thiab kev sib txuas lub zog ntawm cov khoom sib txuas. Tawm tsam qhov keeb kwm yav dhau los no, Silver Contact Brazed Assemblies, nrog rau lawv cov kev ua tau zoo tshaj plaws, tau dhau los ua ib qho tseem ceeb hauv kev tsim khoom ntawm high-kawg MCBs.
Lub hauv paus ntsiab lus ntawm kev khiav hauj lwm ntawm MCBs hais tias lawv cov neeg sib cuag yuav tsum muaj kev ntseeg siab nyob rau hauv ob qho xwm txheej: ua ntej, kom tsis tu ncua nqa tam sim no (feem ntau 6A-125A) nyob rau hauv ib txwm load, yuav tsum tsis tshua muaj kev sib cuag los txo qhov kub nce; thiab thib ob, kom tiv taus tam sim no surges ntawm ntau txhiab amperes thaum lub sij hawm luv luv circuits los yog overloads, tswj kev ncaj ncees ntawm Circuit Court ua ntej lub tripping mechanism ua hauj lwm. Thaum lub sij hawm tus txheej txheem no, qhov kev sib cuag saum npoo yog qhov muaj feem cuam tshuam rau vuam, oxidation, lossis cov khoom xa mus vim qhov kub ntawm cov hluav taws xob arc (txog 3000℃lossis siab dua), ua rau kev sib cuag tsis ua hauj lwm lossis txawm tias adhesion uas tiv thaiv kev sib cais. Yog li ntawd, cov ntaub ntawv sib cuag yuav tsum muaj cov conductivity siab, lub siab melting point, thiab zoo heev tsis kam rau vuam.
Nyiaj-raws li cov ntaub ntawv, vim lawv cov resistivity tsawg (1.59 μΩ·cm), txuas ntxiv conductivity ntawm lawv oxides, thiab muaj peev xwm los txhim kho arc tsis kam los ntawm alloying (xws li Ag-SnO₂, Ag-Ni), tau dhau los ua kev xaiv rau MCB lub ntsiab tiv tauj. Txawm li cas los xij, cov khoom siv zoo dua ib leeg tsis txaus; Tus yuam sij rau kev ua tau zoo tag nrho yog nyob rau hauv yuav ua li cas kom ruaj ntseg thiab tsis tshua muaj kev tiv thaiv txuas cov nyiaj hu rau tooj liab lossis tooj dag conductive circuit. Ib txwm siv riveting los yog mechanical crimping txoj kev yog nquag muaj kev tiv thaiv kev tiv thaiv vim lub interface loosening, thaum soldering, nrog nws cov ntsiab lus melting tsawg (<250℃), cannot withstand the high temperature of the electric arc. In contrast, the Brazing Electrical Contacts process, through high-temperature metallurgical bonding, forms a dense, low-resistance, and highly thermally stable connection interface between the silver and copper substrates, becoming the mainstream solution in the industry.
Tam sim no, kev sib cuag nyiaj siv thev naus laus zis siv hauv MCBs feem ntau poob rau hauv ob pawg: tsis kam vuam thiab brazing. Resistance Projection Welding Silver Contact yog tsim nyog rau siab - ntim cov khoom siv hluav taws xob, ua tiav kev sib xyaw ua ke los ntawm cov cua sov Joule hauv zos, tab sis nws yuav tsum muaj kev sib cuag geometric precision thiab qhov chaw huv. Brazing Silver Contacts rau Copper Bars, ntawm qhov tod tes, siv nyiaj -raws li brazing muab tub lim hlau (xws li BAG series) rau qhov cub lossis induction brazing ntawm 700-850℃los tsim cov txheej txheem metallurgical daim ntawv cog lus, ua rau nws tsim tshwj xeeb rau cov xwm txheej uas yuav tsum muaj kev ntseeg siab, xws li Brazing CB Contacts.
Hauv kev tsim khoom tiag tiag, Copper / Brass Stamping nrog Silver Contact Brazing tau dhau los ua kev sib xyaw ua ke zoo heev. Ua ntej, tooj liab -raws li cov terminals yog precision stamped, ces ua ntej -Silver Contact Stamped Welding Assemblies yog positioned thiab brazed los yog kuj welded los tsim integrated Electrical Contact Assemblies. Cov qauv no tsis tsuas yog ua kom muaj kev sib raug zoo ntawm cov nyiaj ua haujlwm ntawm qhov chaw tab sis kuj ua tiav tag nrho -ib puag ncig metallurgical kev sib txuas los ntawm Kev Sib Txuas Sib Txuas Brazing, txo qis kev cuam tshuam kev cuam tshuam thiab txhim kho kev tiv thaiv thermal qaug zog.
Tsis tas li ntawd, qhov tsim ntawm Vuam Hluav Taws Xob Nyiaj Sib Txuas Lus Sib Tham ncaj qha cuam tshuam rau kev ua haujlwm tawg ntawm MCB. Qhov chaw tiv tauj feem ntau yog siv nrog micro-arc lossis grooved qauv coj cov arc kom elongate thiab tua sai; thaum lub substrate ntawm Brazed Contacts yuav tsum muaj thermal conductivity kom sai sai arc tshav kub mus rau lub tshav kub dissipation qauv, tiv thaiv localized overheating. Cov ntsiab lus no tag nrho yog nyob ntawm kev tswj xyuas meej ntawm Cov Txheej Txheem Sib cuag Vuam.
Nws yog ib qho tsim nyog sau cia tias nrog cov kev cai ib puag ncig nruj zuj zus, cadmium- dawb nyiaj alloys (xws li AgSnO₂-In₂O₃) tau maj mam hloov cov khoom siv AgCdO. Qhov no nthuav tawm cov kev cov nyom tshiab rau cov txheej txheem vuam / brazing- cov ntaub ntawv tshiab muaj cov dej tsis zoo, yuav tsum tau ua kom zoo dua ntawm cov khoom sib xyaw thiab cov thermal cycling profile. Ib txhij, kom ua tau raws li qhov sib txawv me me ntawm MCBs, cov txheej txheem Silver Soldering tau hloov zuj zus mus rau qhov kub thiab txias dua, piv txwv li, siv nyiaj -raws li solders uas muaj tooj liab thiab zinc kom txo tau cov cua sov thiab tiv thaiv substrate deformation thaum ua kom muaj zog sib txuas.
Hauv cov ntsiab lus, qhov kev ua tau zoo ciam teb ntawm MCB feem ntau txhais los ntawm qhov zoo ntawm nws sab hauv Brazed Silver Contacts ntawm Copper Bars. Los ntawm kev xaiv cov khoom siv mus rau cov txheej txheem kev sib txuas, txhua kauj ruam yog qhov tseem ceeb kom kawg - siv hluav taws xob kev nyab xeeb. Silver Contact Brazed Assemblies, ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm, txuas ntxiv tsav kev hloov pauv ntawm cov hluav taws xob me me rau kev ntseeg siab dua, kev ua neej ntev dua, thiab kev siv hluav taws xob zoo dua los ntawm kev sib koom ua ke tshiab hauv cov ntaub ntawv, qauv, thiab cov txheej txheem.
Tiv tauj peb
Yog tias koj xav kawm ntxiv txog cov kev daws teeb meem tshwj xeeb lossis cov txheej txheem hloov kho cov lus qhia rauResistance Welding Silver Contact qhov chawhauv MCB lossis MCCB, thov koj xav tiv tauj peb.
