Solder Creeping Lisosa & Tharollo ea PTFE High-Mocheso Theipi

Joaloka moetsi oa litsebi oa mohloli oa lesela la PTFE le mocheso o phahameng, Jiangsu Aokai New Materials o arolelana indasteri ea litsebi. Insights.In PCB hot air solder leveling, khauta plating le qoelisoa khauta dithulaganyo, solder creeping at the shielding theipi ea PTFE high-themperature tepi e bakoa haholo-holo ke phello e kopantseng ea ho hloleha ha 'mele ea theipi le tikoloho e feteletseng ea ts'ebetso.

I. Lisosa tsa Solder Creeping

Edge warping ea PTFE mocheso o phahameng oa mocheso ho etsa likheo Nakong ea tlhahiso e phahameng ea mocheso, matla a sekhomaretsi a theipi a fokotseha ha mocheso o ntse o phahama. Ha sekhomaretsi se sa lekana ho hanela khatello ea mocheso, lithapo tsa tepi li tla sotheha hanyane ebe li theha likheo tsa capillary, ho lumella solder ea metsi hore e kenelle kahare.

Ho bokelloa ha letamo le letamo la solder Solder e na le tšekamelo ea ho thella libakeng tse nang le mocheso o phahameng oa 'mele. Ha sebaka se sirelelitsoeng se le mocheso o batlang o le holimo, solder ea metsi e nyolohela holimo ho latela likheo tsa tepi ka wicking e tloaelehileng. effect.Ho phaella moo, teipi e teteaneng ka ho feteletseng ea PTFE e tla theha mehato e ka thōko, e bakang ho bokellana ha solder ho theha letamo la solder, e leng ho mpefatsang lihahabi tsa solder.

Boleng bo sa lumellaneng ba PTFE theipi ea mocheso o phahameng oa mocheso Sekhomaretsi sa sekhomaretsi sa theipi e tlase ea PTFE se tloaetse ho phalla, ho senyeha le masala a sekhomaretsi mochesong o phahameng. Ha e senye feela mokoallo oa tšireletso, empa e boetse e silafatsa liphahlo, e eketsa haholo kotsi ea ho haha ​​​​sehahabi sa solder.

Lintho tse silafatsang tse fetang tepi ea PTFE Leha theipi e ntse e tiile, e phatlohile le ho fafatsa lifaha tsa solder tse setseng ho PCB vias, kapa likaroloana tse nyane tsa solder tse hlahisoang ke flux vaporization nakong ea reflow soldering, li ka phunyeletsa kapa tsa feta sebaka se sirelelitsoeng mme tsa baka tšilafalo.

e sa nepahalang lamination le tshebetso fluctuation Ho hloleha ho hloekisa holim'a tšireletso kapa ho sa lekana ho tobetsa nakong ea kopo theipi tla siea likheo bakeng sa solder penetration.Excessively ka potlako ho phahama ha mocheso nakong reflow soldering sharply eketsa solder fluidity, etsa hore ho be bonolo ho tlōla moeli oa theipi PTFE.

Ho koloba ho hoholo ha bokaholimo ba khauta bo mpefatsang bothata bo holimo ba khauta e kentsoeng le ho qoelisoa bo na le metsi a matle haholo a solder. Hang ha solder e kopana le bokaholimo ba khauta, e ata ka potlako haufi le mathōko a theipi, e leng se etsang hore ho be le mefuta e mengata ea lihahabi ho feta OSP le mekhoa e tloaelehileng ea mocheso oa solder.Defects tse kang khauta lesela la pinholes le nickel corrosion li tla etsa hore ho be le metsi a sa tloaelehang a sebakeng seo 'me a mpefatse ka ho eketsehileng lihahabi tsa solder.

II. Litharollo: Moralo o hlophisitsoeng oa Kopo bakeng sa Theipi ea PTFE ea boleng bo holimo

Khetha lihlahisoa tse tšoanelehang le standardize lamination tshebetso Amohela boleng bo phahameng PTFE theipi phahameng-thempereichara khethehileng ntshetswa pele bakeng sa dithulaganyo PCB phahameng-thempereichara, ka ho hanyetsa mocheso oa 250 ~ 260 ℃ ho kopana le loto-mahala tlhahiso ditlhoko.Clean the shielding holim'a hantle le isopropanol pele kopo ho etsa bonnete ba ho loketseng ka ho feletseng ntle le bohale warping kapa likheo. Apara liatlana nakong ea ts'ebetso ho qoba tšilafalo ea mafura.

Thibela ho phatloha ha lifaha tsa solder hore li se ke tsa phunyeletsa ka har'a tšireletso Amohela foromo e tlaase ea solder ea peista 'me u nolofatse moepa oa mocheso o phallang hape. Ho futhumatsa ho lekaneng ho qoba moea o matla oa solvent 'me ho fokotsa kotsi ea hore lifaha tse nyenyane tse solder li phunyeletse tšireletso ea theipi.

Matlafatsa tsamaiso ea khatiso le lisebelisoa tsa ho hloekisa Hloekisa stencil ka mor'a ho hatisa li-PCB tse ling le tse ling tse 2-3, 'me u sebelise mokhoa oa ho hlakola ka mokhoa o omileng + ho thibela 'solder paste' ho hasana sebakeng sa tepi.

Thibela kena le tshebetso ya taolo ya boleng ho etsa bakeng sa mefokolo ea lintho tse bonahalang Hloka PCB bafepedi ho fana ka tšoanelehang plugging disetifikeiti tsa boleng ho etsa bonnete ba ka ho feletseng tlala vias le ho thibela patiloeng solder lifaha ho tloha ka ho feta theipi thebe.Lokisetsa tšohanyetso solderability tlhahlobo bakeng sa mapolanka khauta-plated. Hang ha mathata a kang khauta e tšesaane le corrosion ea nickel a fumanoa, thibela lihlahisoa tse nang le bokooa ho qoba lihahabi tse matla tse bakoang ke ho ata ho sa tloaelehang ha solder.

Amohela mekhoa e meng ea ho fokotsa ho itšetleha ka litheipi Haeba moralo oa sehlahisoa o lumela, sebelisa mokhoa o ikhethileng oa kalafo, joalo ka ho maneha khauta holim'a lipache le ho lokisa menoana ea khauta ka morao. Sena se felisa tlhoko ea ho itšireletsa ka theipi ea PTFE mme e rarolla bothata ba lihahabi tsa solder.

Khetho e utloahalang, lamination e tloaelehileng le taolo e feletseng ea ts'ebelisano ea PTFE theipi ea mocheso o phahameng oa mocheso ke linotlolo tsa mantlha tsa ho felisa lihahabi tsa solder. Ho ntlafatsa lintlha tsa kopo ho ka ntlafatsa katleho ea tlhahiso le ho fokotsa litšenyehelo tsa ho sebetsa hape.

Litaba tsa tekheniki tse kaholimo li fanoe ke Jiangsu Aokai New Materials Technology Co., Ltd.

Haeba o hloka lintlha tse qaqileng, linyeoe tsa kopo le litharollo tse hlophisitsoeng bakeng sa lesela la mocheso o phahameng oa PTFE, tepi ea mocheso o phahameng oa PTFE, lebanta la PTFE, lebanta la mochini o se nang mochini, lesela le nang le mahlakoreng a le mong a PTFE, lebanta le nang le mocheso o phahameng le lesela la fiberglass, ka kopo ikopanye le rona:

·  Monghali Guo: +86 18944819998

·  Monghali Liu: +86 13705266308

Re latela filosofi ea khoebo ea botsebi le bots'epehi, 'me re fana ka litharollo tsa ts'ehetso ea indasteri e le 'ngoe le tšebeletso e nahanelang ka mor'a thekiso bakeng sa bareki ba lefats'e.