Beryllium tooj liab alloys, nrog rau lawv zoo heev conductivity, elasticity, thiab qaug zog tsis kam, yog cov tub ntxhais substrate rau ntau yam hluav taws xob riveting thiab tiv tauj Cheebtsam. Nyob rau hauv chav tsev kub, ib tug nyias nyias txheej ib txwm tsim nyob rau saum npoo ntawm beryllium tooj liab. Tom qab siab -kub kho cua sov, cov ntaub ntawv tuab oxide txheej. Cov yeeb yaj kiab oxide no cuam tshuam ncaj qha rau tom qab electroplating, vuam, thiab lwm yam txheej txheem tiav, cuam tshuam loj rau molding raug thiab ua haujlwm ruaj khov ntawm ntau yam Copper Beryllium Riveting Silver Contacts. Yog li ntawd, kev tshem tawm oxide thiab ntxuav ntawm beryllium tooj liab nto yog ib qho tseem ceeb hauv kev ua cov khoom. Kab lus no yuav txheeb xyuas kom meej txog kev tsim cov txheej txheem ntawm beryllium tooj liab oxide txheej thiab cov txheej txheem ntxuav kev tsim nyog rau kev ua haujlwm sib txawv.
Lub beryllium tooj liab oxide zaj duab xis yog tsim los ntawm kev sib xyaw ntawm beryllium oxide thiab ntau yam tooj liab oxides. Lub thickness thiab muaj pes tsawg leeg ntawm zaj duab xis yog txiav txim siab los ntawm kev kho cua sov, tuav lub sij hawm, thiab cua sov cua sov. Vim tias beryllium muaj kev sib raug zoo heev rau cov pa oxygen, thiab beryllium oxide tsis tuaj yeem txo los ntawm hydrogen, oxide tsim tsis tuaj yeem tshem tawm tag nrho txawm tias qhov chaw kho cua sov; Tsuas yog cov℃ntawm oxidation tuaj yeem raug txo los ntawm cov txheej txheem optimization. Cov qib sib txawv ntawm beryllium tooj liab alloys muaj qhov sib txawv ntawm oxidation yam ntxwv. Kev siv C17200 beryllium tooj liab alloy feem ntau ua piv txwv, nyob rau hauv qhov chaw kho cua sov nitrogen, qhov kub thiab txias ntawm 700℃F thiab saum toj no yuav ua rau cov txheej txheem saum npoo ntawm beryllium oxide, thaum qhov kub tsis tshua muaj qhov kub ntawm 600 ° F thiab hauv qab no yuav tsim ib zaj duab xis sib xyaw ntawm beryllium oxide thiab tooj liab oxide. Cov oxide txheej tsim ntawm qhov kub thiab txias yog thinner thiab yooj yim dua tshem tawm los ntawm kev ntxuav cov kua qaub. Cov txheej txheem kev kho cua sov tuaj yeem ua kom yooj yim rau qhov nyuaj ntawm kev tu tom ntej ntawm Cov Hluav Taws Xob Caij Nplooj Ntoos Hlav.
Cov kev kho cua sov ncaj qha txiav txim siab qhov tuab thiab tu nyuaj ntawm beryllium tooj liab oxide zaj duab xis. Cov teebmeem oxidation ntawm cov pa aging thaum tshav kub kub kho thiab kev daws annealing txawv heev. Raws li cov xwm txheej ntawm kev tuav ntawm 600℃F nyob rau hauv ib qho chaw inert rau 2 teev, oxide zaj duab xis thickness ntawm C17200 alloy tsuas yog 300-800 Å, thaum tom qab tov annealing ntawm 1450℃F, zaj duab xis thickness tuaj yeem ncav cuag 1000-2000 Å. Thick beryllium oxide films yog qhov nyuaj tshaj plaws los ntxuav thiab tsis tuaj yeem raug tshem tawm los ntawm cov pa qaub ncaug; lawv xav tau pretreatment nrog lub siab -kub concentrated alkaline tov. Cov qib siab -lub zog oxide txheej no feem ntau tshwm sim thaum lub sijhawm ua cov khoom siv raw. Reputable raw khoom cov neeg muag khoom tuaj yeem ua pretreatment, ua kom muaj oxide-dawb substrate rau tom ntej In-Die Rivet Hluav Taws Xob Cov Hluav Taws Xob Ua Haujlwm.
Rau Armature Beryllium Copper Riveting Assemblies tom qab stamping thiab lub hnub nyoog hardening, kev lag luam tau tsim ob peb mature acid pickling thiab tu tshuab haum rau txawv oxidation tej yam kev mob thiab alloy cov ntaub ntawv. Cov tshuaj ntxuav tu tseem ceeb suav nrog sulfuric acid- hydrogen peroxide systems, phosphoric acid -nitric acid (PNA) systems, thiab nitric acid systems. Cov txheej txheem sib txawv muaj qhov sib txawv tsim nyog, qhov kev ua haujlwm tsis zoo, thiab qhov zoo thiab qhov tsis zoo. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias cov hlau lead- uas muaj beryllium tooj liab alloys yuav tsum tsis txhob muaj sulfuric acid systems los tiv thaiv kev tsim ntawm insoluble lead sulfate residues, uas tuaj yeem cuam tshuam rau qhov smoothness thiab conductivity ntawm rideted nyiaj hluav taws xob tiv tauj. Rau cov alloys, nitric acid lossis PNA pickling txheej txheem yog nyiam.
Sulfuric acid-hydrogen peroxide yog ib qho kev siv tshuaj ntxuav me me hauv kev lag luam. Tus qauv piv yog 20% sulfuric acid + 3% hydrogen peroxide, nrog kev ua haujlwm kub ntawm 125℃F. Nws muaj qhov zoo xws li kev tswj tau yooj yim, tsis muaj pa phem, thiab kev kho cov kua khib nyiab yooj yim. Nws tseem tuaj yeem ua tiav cov teebmeem polishing immersion, txhim kho qhov smoothness ntawm beryllium tooj liab, thiab yog tsim rau tu ntau yam precision hluav taws xob tsiv hu rivets. Cov tshuaj tiv thaiv ntawm cov kab ke no tsuas yog cuam tshuam los ntawm cov concentration ntawm hydrogen peroxide thiab kub; Kev hloov pauv hauv sulfuric acid concentration muaj qhov cuam tshuam tsawg kawg ntawm kev ntxuav. Tsis tas li ntawd, tooj liab ions hauv cov tshuaj tuaj yeem raug tshem tawm los ntawm qis -kub crystallization, tso cai rau kev rov ua dua tshiab. Tsuas yog kev soj ntsuam ib ntus ntawm hydrogen peroxide concentration yog xav tau los tswj kom ruaj khov oxidative tu lub peev xwm.
Nitric acid tu tshuab tsis tshua muaj nqi thiab tsim cov khoom ci, huv si beryllium tooj liab, ua rau lawv haum rau siab - ntim cov khoom ua haujlwm. Txawm li cas los xij, lawv muaj qhov tsis zoo tseem ceeb: kev tswj cov tshuaj tiv thaiv yog qhov nyuaj, cov pa phem tau yooj yim tsim thaum lub sijhawm ua haujlwm, thiab cov kua khib nyiab yuav tsum tau kho tshwj xeeb. Thaum urea tuaj yeem muab ntxiv los pab tswj cov pa taws, qhov no ua rau cov tshuaj tiv thaiv exothermic, ua rau muaj kev kub ntxhov, thiab yooj yim ua npuas tsis xws luag. Tam sim no, feem ntau cov xwm txheej tsim khoom siv urea - cov txheej txheem nitric acid dawb, tso siab rau lub tshuab ua pa zoo kom ua kom muaj kev nyab xeeb ntawm kev ua haujlwm. Lub kaw lus no muaj zog tooj liab thauj khoom-cov kabmob muaj peev xwm thiab tsim nyog rau ua ntej- kev kho mob ntawm ntau yam Embedded Silver Contacts In Die cov ntaub ntawv.
PNA ci immersion tu system muaj ib tug formulation ntawm 38% phosphoric acid + 2% nitric acid + 60% acetic acid, nrog rau kev khiav hauj lwm kub ntawm 160℃F. Nws lub ntsiab kom zoo dua yog hais tias nws combines tu thiab polishing los, txo cov nto roughness ntawm lub substrate thiab ua lub beryllium tooj liab substrate electroplating txheej txheem. Piv nrog rau cov dej txias yaug, dej kub yaug tuaj yeem ua kom zoo dua qhov ua kom zoo dua. Ib qho me me ntawm nitric acid ua rau kev ntxuav cov tshuaj tiv thaiv ntau dua. Qhov tsuas yog drawback yog tias residual phosphate thiab tooj liab ions yuav ua rau me ntsis nce tus nqi kho dej khib nyiab ntawm Moving Spring Assembly rau Automotive Relay.
Cov txheej txheem ua tiav beryllium tooj liab tsis tuaj yeem raug cais tawm ntawm cov kauj ruam ua ntej. Ua tib zoo tshem tawm cov roj thiab cov impurities ua ntej pickling ua kom muaj cov txiaj ntsig zoo sib xws thiab zam qhov teeb meem ntawm kev tu tsis tiav hauv qee qhov chaw. Yog hais tias lub Armature Beryllium Copper Riveting Assembly tsis tuaj yeem raug electroplating los yog vuam tam sim ntawd, kev tiv thaiv saum npoo yog tsim nyog. Kev lag luam feem ntau siv BTA antifouling tus neeg sawv cev, uas tuaj yeem tsim cov yeeb yaj kiab tiv thaiv ruaj khov rau ntawm qhov chaw substrate, zoo cais cov pa oxygen thiab noo noo, tiv thaiv cov khoom zoo xws li Relay Moving Spring los ntawm oxidation thiab paug rau lub sijhawm ntev, thiab ua kom ruaj khov zoo hauv kev ua haujlwm tom ntej.
Nyob rau hauv cov ntsiab lus, lub hauv paus ntawm beryllium tooj liab tu nyob rau hauv txuam ib tug tshwj xeeb tu txheej txheem rau cov yam ntxwv ntawm oxide txheej thiab cov ntaub ntawv alloy, precisely kov yeej teeb meem xws li qhov nyuaj ntawm tshem tawm beryllium oxide, defects deg, thiab pluag plating adhesion. Cov txheej txheem tu txheej txheem tuaj yeem tshem tawm cov txheej txheem beryllium tooj liab oxide kom huv si, ua kom cov electroplating thiab vuam zoo ntawm ntau yam beryllium tooj liab riveting thiab tiv tauj cov khoom, thiab txhim kho cov khoom lag luam thiab lub neej ntev.
Rau customized tu txheej txheem daws teeb meem thiab kev siv tshuab kev txhawb nqa mus rau ntau yamberyllium tooj liab stamping springs, thov koj xav tiv tauj peb. Peb yuav muab kev cob qhia kev ua haujlwm raws li koj cov khoom lag luam kev ua haujlwm.
Tiv tauj peb
