Kev Taw Qhia ntawm QC Kev Tshawb Fawb
Tso lus
QC ntawm circuit boards yog ib qho ntawm cov kauj ruam tseem ceeb los xyuas kom meej qhov zoo ntawm Circuit Court boards, thiab nws qhov tseem ceeb yog qhov tseeb.
Cov ntsiab lus tseem ceeb ntawm cov ntawv luam tawm Circuit Board QC suav nrog cov hauv qab no:
1.Slice kuaj
Ua kev txiav txim siab zoo thiab kev tshuaj xyuas ua ntej ntawm qhov ua rau muaj qhov tsis xws luag los ntawm kev txiav. Piv txwv li, txheej txheej txheej, qhov phab ntsa txheej, txheej txheej txheej, txheej txheej txheej, txheej txheej thickness, qhov txheej txheej thickness, lateral corrosion, sab hauv txheej nplhaib dav, interlayer sib tshooj, txheej zoo, qhov phab ntsa roughness, thiab lwm yam Microsections ua los ntawm micro sectioning tshuab Cov ntawv luam tawm tuaj yeem siv los txheeb xyuas qhov tuab, cov txheej txheem, qhov loj ntawm qhov aperture, thiab los ntawm qhov zoo ntawm cov xov hlau sab hauv hauv PCBA cov pob qij txha. Lawv kuj tuaj yeem siv los txheeb xyuas cov voids sab hauv, kev sib txuas ntawm kev sib txuas, thiab kev ntsuam xyuas zoo ntawm PCBA cov pob qij txha.
2. Weldability xeem
Kev ntsuam xyuas solderability yog tsom rau cov khoom siv hluav taws xob ua tiav, thiab muaj kev ntsuam xyuas cov khoom siv los ntawm lub cev ua ntej xa khoom xa tuaj.
Thaum lub sij hawm tsim cov txheej txheem, kev ntsuam xyuas solderability yuav tsis ua vim qhov chaw ntawm lub rooj tsav xwm Circuit Court tseem yog tooj liab. Tsuas yog tom qab siv lub ntsej muag lo lo ntxhuav lub ntsej muag lub ntsej muag yuav ua rau cov ntaub qhwv ntsej muag raug kho rau saum npoo (xws li kev kho kub kub, tin spraying, thiab lwm yam). Tom qab kev kho saum npoo tiav lawm, cov khoom tiav yuav raug kuaj xyuas seb puas muaj cov ntaub qhwv zoo soldered.
Kev sim solderability ntawm Circuit Court boards yog ib txoj hauv kev siv los txheeb xyuas seb qhov saum npoo ntawm Circuit Court boards yooj yim rau vuam. Qhov kev ntsuam xyuas no tuaj yeem ntsuas qhov kev ua tau zoo ntawm kev sib txuas ntawm cov laug cam, nrog rau cov thermal conductivity zoo, du nto, thiab nkag mus ntawm cov ntaub qhwv.
Siv vuam tsis haum rau cov txheej txheem vuam sib txawv los ntsuas qhov kub thiab qhov cuam tshuam ntawm cov laug cam. Qhov no tuaj yeem ua tiav los ntawm kev muab cov ntaub qhwv rau ntawm lub rooj tsavxwm thiab siv qee qhov kub thiab txias. Thaum lub sij hawm xeem txheej txheem, lub wettability thiab flowability ntawm cov ntaub so ntswg solder yuav raug soj ntsuam xyuas kom lawv zoo meej kev koom ua ke nrog lub rooj tsavxwm Circuit Court. Nyob rau tib lub sijhawm, lub zog thiab kev sib txuas ntawm cov pob qij txha tuaj yeem raug soj ntsuam los txiav txim siab lawv txoj kev ntseeg siab thaum siv mus ntev.
Daim duab: 45 degree cross section
Daim duab: Roj dip
3.Thermal shock test
PCB thermal shock test yog ib qho kev ntsuam xyuas tseem ceeb heev hauv kev tswj xyuas qhov zoo ntawm PCB. Qhov kev ntsuam xyuas no ntsuas cov cua sov ua haujlwm thiab kev ruaj ntseg ntawm Circuit Court boards los ntawm kev nthuav tawm lawv mus rau qhov kub thiab txias hloov nyob rau hauv huab cua kub.
a. Cov Ntsiab Cai Kawm Txuj Ci
Thermal shock test yog ib hom kev sim uas cov khoom kuaj tau hloov los ntawm qhov kub thiab txias ib puag ncig mus rau qhov kub thiab txias ib puag ncig, thiab tom qab ntawd los ntawm qhov kub thiab txias ib puag ncig mus rau qhov kub thiab txias ib puag ncig, thiab qhov kev ntsuam xyuas tau ua tas li hauv lub voj voog no. Qhov kev sim no simulates kev siv cov khoom siv hluav taws xob hauv qhov kub thiab txias ib puag ncig los ntsuas qhov ruaj khov thiab ua haujlwm ntev ntawm cov laug cam hauv qhov kub thiab txias uas yuav tsum tau ua haujlwm ntev.
b. Cov txheej txheem sim
Cov txheej txheem ntawm Circuit Court board thermal shock test yog muab tso rau hauv qhov chaw kuaj, tswj qhov kub ntawm qhov siab mus rau qis thiab tom qab ntawd mus rau lub voj voog siab, thiab khaws qhov sib npaug rau 30 feeb lossis 1 teev txhua zaus. Lub sijhawm tshwj xeeb raug kho raws li qhov xav tau tiag tiag. Txhawm rau kom tswj tau qhov tseeb ntawm cov txiaj ntsig kev sim, lub chaw soj nstuam yuav tsum muaj kev lim dej zoo thiab kev tswj hwm ib puag ncig, xws li tswj cov chav tsev kub, av noo, lub tshuab nqus tsev, thiab lwm yam.
c. Cov txiaj ntsig kev sim
Qhov tshwm sim ntawm thermal shock test ntawm lub rooj tsavxwm Circuit Court yog los soj ntsuam nws cov stability thiab durability los ntawm kev soj ntsuam cov tsos thiab hluav taws xob kev ua tau zoo ntawm cov khoom xeem. Tom qab qhov kev sim ua tiav, daim ntawv xeem yuav tsum tau kuaj xyuas cov cim ntawm kev sib koom ua ke tawg, Circuit Court melting, hlau txheej tawg, lossis lwm yam pom kev puas tsuaj.
Sihui Fuji Quality Management (QC) ua raws li xoom tawm ntawm cov khoom tsis raug, tseem muaj lub luag haujlwm rau cov neeg siv khoom, cuam tshuam cov khoom tsis zoo hauv lub tuam txhab, tsuas yog muab cov khoom zoo rau cov neeg siv khoom, ua tau raws li lawv cov kev xav tau zoo, tsis tu ncua kev txhim kho zoo hauv lub tuam txhab, thiab tsim cov khoom siv hluav taws xob zoo tshaj plaws.
