Izinto ezirhubuluzayo zeSolder kunye nezisombululo ze-PTFE iTape yobushushu obuphezulu

Njengomvelisi womthombo oqeqeshiweyo we-PTFE ilaphu lobushushu obuphezulu, iJiangsu Aokai New Materials yabelana ngeshishini lobuchwephesha. Insights.Kwi -PCB umoya oshushu wokulinganisa i-solder, ukufakwa kwegolide kunye neenkqubo zegolide ezintywiliselwayo, i-solder irhubuluza kwiindawo ezikhuselayo ze-PTFE tape yobushushu obuphezulu ibangelwa ikakhulu yimpembelelo edibeneyo yokungaphumeleli komzimba weteyiphu kunye neenkqubo ezigqithisileyo.

I. Iimbangela ze-Solder Creeping

Edge warping of PTFE high-ubushushu tape ukwenza izikhewu Ngexesha imveliso yobushushu eliphezulu, amandla ancamatheleyo we tape kuncipha njengoko ubushushu buphakama. Xa i-adhesion ingonelanga ukumelana noxinzelelo lwe-thermal, imiphetho ye-tape iya kujika kancinci kwaye yenze izithuba ze-capillary, ivumela i-solder yolwelo ukuba ingene ngaphakathi.

Isiphumo esibi kunye nokuqokelelana kwedama le-solder I-Solder ithande ukurhubuluza ukuya kwiindawo ezinobushushu obuphezulu ngokwasemzimbeni. Xa indawo ekhuselweyo ikwiqondo lobushushu elithe kratya, i-solder yolwelo ikhwela inyukela phezulu kunye nezithuba zeteyiphu kwi-wicking eqhelekileyo. effect.Ukongezelela , iteyiphu eshinyeneyo ye-PTFE iya kwenza amanyathelo emiphethweni, ibangele ukuqokelelana kwe-solder ukwenza idama le-solder, eliqhubela phambili i-solder erhubuluzayo.

Umgangatho wemathiriyeli ongahambelaniyo we-PTFE iteyiphu yobushushu obuphezulu Iteyiphu encamathelayo yeteyiphu encamathelayo ye-PTFE ithande ukuqukuqela, ukonakala kunye nentsalela encamathelayo kumaqondo obushushu aphezulu. Ayilonakalisi kuphela umqobo wokukhusela, kodwa ingcolisa iipads, inyusa kakhulu umngcipheko we-solder creeping.

Izingcolisi ezidlula iteyiphu ye-PTFE Nokuba itheyiphu icocekile, igqabhukile kwaye itshiza amaso e-solder ashiyekileyo kwi-PCB nge-vias, okanye amasuntswana amancinane e-solder aveliswa ngumphunga oqukuqelayo ngexesha lokuphinda uthengiselwe, anokungena okanye adlule kwindawo ekhuselayo kwaye abangele ungcoliseko.

I-lamination engafanelekanga kunye nokuguquguquka kwenkqubo Ukungaphumeleli ukucoca indawo yokukhusela okanye ukucinezela ngokwaneleyo ngexesha lesicelo se-tape kuya kushiya izithuba ze-solder penetration.Ukushisa okugqithisiweyo ngokukhawuleza ngexesha lokunyuka kwe-soldering ngokukhawuleza kwandisa i-solder fluidity, okwenza kube lula ukuqhekeza umda we-PTFE tape.

Ukumanzisa okuphezulu komgangatho wegolide otyatyekwayo oyenza mandundu ingxaki imiphezulu yegolide ecatshulwe ngegolide kunye nokuntywiliselwa kwegolide ibonakalisa ukumanzisa okugqwesileyo kwe-solder. Nje ukuba i-solder iqhagamshelane nomphezulu wegolide, isasazeka ngokukhawuleza kwincam yeteyiphu, okukhokelela kuluhlu lwezilwanyana ezinwabuzelayo ezinkulu kune-OSP kunye neenkqubo zokulinganisa i-solder yomoya oshushu.Iziphene ezifana neepinholes zomaleko wegolide kunye ne-nickel corrosion ziya kubangela ukumanzi okungaqhelekanga kwendawo kunye ne-edge edge solder ezirhubuluzayo.

II. Izisombululo: Isicwangciso seSicelo esiCwangcisiweyo soMgangatho oPhezulu we-PTFE Tape

Khetha iimveliso ezifanelekileyo kwaye ulungelelanise ukusebenza kwe-lamination Yamkela umgangatho ophezulu we-PTFE wobushushu obuphezulu obuphuhliswe ngokukodwa kwiinkqubo ze-PCB zobushushu obuphezulu, kunye nokumelana nobushushu obungama-250 ~ 260 ℃ ukuhlangabezana neemfuno zemveliso ye-lothe-free.Coca umphezulu wokukhusela ngokucokisekileyo kunye ne-isopropanol ngaphambi kwesicelo sokuqinisekisa ukufaneleka okupheleleyo ngaphandle kokuphazamiseka komphetho okanye izithuba. Nxiba iiglavu ngexesha lokusebenza ukuthintela ukungcoliseka kwegrisi.

Thintela ukuchaphaza kweentsimbi zesolder ekuqhekekeni kwindawo ekhuselayo Yamkela ifomula yokuncamathelisa etshizayo ephantsi kwaye ulungise ijiko lobushushu lokuqukuqela kwakhona. Ukushisa okwaneleyo kwangaphambili kuthintela ukunyibilika kwe-solvent enobundlobongela kwaye kunciphisa umngcipheko wamaso amancinane e-solder aqhekeza i-tape shielding.

Yomeleza ushicilelo kunye nolawulo lwezixhobo zokucoca Coca i-stencil emva kokushicilela zonke ii-PCB ezi-2-3, kwaye wamkele ukosula okomileyo + imowudi yokucoca i-vacuum ukukhusela i-solder paste ukutshiza kwindawo ye-tape. Rhoqo susa intsalela yomgubo we-solder kumatshini wokushicilela, iingoma zokuxhoma kunye nezixhobo zokuphelisa ungcoliseko lwesibini.

Ukungena okungqongqo kunye nenkqubo yokulawula umgangatho ukwenza imida eziphathekayo Funa ababoneleli PCB ukubonelela abaqeqeshiweyo izatifikethi umgangatho ukuplaga ukuqinisekisa vias ezaliswe ngokupheleleyo kunye nokuthintela amaso solder efihliweyo ekudluleni tape ekhuselayo.Lungelelanisa random solderability ukuhlolwa iibhodi ngegolide-plated. Nje ukuba iingxaki ezinje ngegolide ecekethekileyo kunye ne-nickel corrosion zifunyenwe, ibhloka iimveliso ezineziphene ukunqanda ukurhubuluza okubukhali okubangelwa kukusasazeka kwe-solder engaqhelekanga.

Ukwamkela ezinye iinkqubo zokunciphisa ukuxhomekeka kwiteyiphu Ukuba uyilo lwemveliso luyakuvumela, sebenzisa unyango olukhethiweyo lwangaphezulu, olufana nokuhonjiswa kwegolide kwipads kunye nokucolwa kweminwe yegolide emva kokulungiswa. Oku kuphelisa imfuno yokukhusela edge nge-PTFE tape kwaye kusombulula ngokusisiseko umba orhubuluzayo we-solder.

Ukukhetha okunengqiqo, ukulinganisa okusemgangathweni kunye nolawulo olupheleleyo lwentsebenziswano ye-PTFE tape yobushushu obuphezulu zizitshixo ezingundoqo zokuphelisa i-solder creeping. Ukuphucula iinkcukacha zesicelo kunokuphucula ngokufanelekileyo imveliso yemveliso kunye nokunciphisa iindleko zokusebenza kwakhona.

Lo mxholo wobugcisa ungentla unikwe nguJiangsu Aokai New Materials Technology Co., Ltd.

Ukuba ufuna iiparitha ezineenkcukacha, iimeko zesicelo kunye nezisombululo ezicwangcisiweyo ze-PTFE ngelaphu lobushushu obuphezulu, i-PTFE iteyiphu yobushushu obuphezulu, ibhanti le-PTFE, ibhanti lomatshini we-fusing elingenamthungo, i-PTFE enecala elinye elityatyekwe ngelaphu, ibhanti lokuhambisa elinobushushu obuphezulu kunye nelaphu le-fiberglass, nceda uqhagamshelane nathi:

·  UMnu Guo: +86 18944819998

·  UMnu Liu: +86 13705266308

Sibambelela kwifilosofi yoshishino yobungcali kunye nemfezeko, kwaye sibonelela ngezisombululo zokuxhasa ishishini kunye nenkonzo yokuthengisa emva kokuthengisa kubathengi behlabathi.