Solder Creeping Uas & Solutions ntawm PTFE High-Temperature Daim kab xev

Raws li lub chaw tsim khoom ntawm PTFE high-temperature fabric, Jiangsu Aokai Tshiab Cov ntaub ntawv qhia kev lag luam insights.In PCB kub cua solder leveling, kub plating thiab immersion kub txheej txheem, solder creeping ntawm lub shielding npoo ntawm PTFE high-temperature daim kab xev yog tsuas yog tshwm sim los ntawm kev sib xyaw ua ke ntawm lub cev tsis ua hauj lwm ntawm daim kab xev thiab huab txheej txheem ib puag ncig.

I. Ua rau Solder Creeping

Ntug warping ntawm PTFE high-temperature tapes forming gaps Thaum lub sij hawm high-temperature ntau lawm, cov nplaum quab yuam ntawm daim kab xev txo qis thaum kub nce. Thaum lub adhesion tsis txaus los tiv thaiv thermal stress, daim kab xev npoo yuav me ntsis warp thiab tsim capillary khoob, cia cov kua solder nkag mus rau sab hauv.

Wicking effect thiab solder dam accumulating Solder tends to creep to high-temperature areas of physically. Thaum qhov chaw tiv thaiv nyob rau ntawm qhov kub thiab txias, cov kua solder nce siab ntawm qhov khoob ntawm daim kab xev hauv ib qho kev wicking. effect.Ntxiv rau, tuab PTFE daim kab xev yuav ua rau cov kauj ruam ntawm cov npoo, ua rau cov khoom sib txuas los ua ib lub pas dej ua ke, uas ua rau muaj kev kub ntxhov ntxiv.

Mismatched khoom zoo ntawm PTFE high-temperature daim kab xev Cov nplaum txheej ntawm inferior PTFE daim kab xev yog nquag ntws, deterioration thiab nplaum residue ntawm qhov kub thiab txias. Nws tsis tsuas yog ua kom puas lub shielding barrier, tab sis kuj paug cov ntaub qhwv, ua rau muaj kev pheej hmoo ntawm solder creeping.

Cov pa phem hla dhau PTFE daim kab xev Txawm tias daim kab xev tsis zoo, tawg thiab txaws cov hlaws hlaws uas tseem tshuav hauv PCB vias, lossis cov khoom siv me me uas tsim los ntawm flux vaporization thaum lub sij hawm reflow soldering, tuaj yeem nkag mus lossis hla qhov chaw tiv thaiv thiab ua rau muaj kab mob.

Kev lamination tsis raug thiab cov txheej txheem hloov pauv Tsis ua haujlwm tsis tu ncua ntawm qhov chaw tiv thaiv lossis tsis txaus nias thaum lub sij hawm daim ntawv thov daim kab xev yuav tawm qhov khoob rau kev nkag mus rau hauv cov khoom siv. Ceev ceev kub nce thaum lub sij hawm reflow soldering sharply nce solder fluidity, ua rau nws yooj yim dua mus hla ciam teb ntawm PTFE daim kab xev.

High wettability ntawm kub plating nto exacerbating qhov teeb meem kub-plated thiab immersion kub nto feature zoo heev solder wettability. Thaum solder hu rau cov kub saum npoo, nws kis tau sai heev raws li daim kab xev, uas ua rau ib tug ntau ntau creeping ntau tshaj li OSP thiab zoo tib yam cua kub solder leveling txheej txheem.Kev tsis xws luag xws li kub txheej pinholes thiab npib tsib xee corrosion yuav ua rau txawv txav hauv zos wettability thiab ntxiv zuj zus lawm ntug solder creeping.

II. Kev daws teeb meem: Daim Ntawv Thov Kev Npaj Ua Haujlwm Zoo rau PTFE Daim Kab Xev

Xaiv cov khoom tsim nyog thiab cov txheej txheem lamination ua haujlwm Txais cov khoom zoo PTFE high-temperature daim kab xev tshwj xeeb tsim rau PCB cov txheej txheem kub, nrog rau qhov kub thiab txias ntawm 250 ~ 260 ℃ kom ua tau raws li cov khoom siv hlau lead-dawb. Hnav hnab looj tes thaum ua haujlwm kom tsis txhob muaj roj paug.

Tiv thaiv cov hlaws hlaws splashing los ntawm kev tawg los ntawm kev tiv thaiv Txais cov khoom siv uas tsis tshua muaj txaws cov tshuaj txhuam thiab ua kom zoo dua qhov kub thiab txias nkhaus. Kev ua kom txaus txaus kom tsis txhob muaj qhov hnyav hnyav vaporization thiab txo qhov kev pheej hmoo ntawm cov hlaws me me tawg los ntawm daim kab xev tiv thaiv.

Txhim khu kev luam ntawv thiab kev tswj xyuas cov cuab yeej ntxuav lub stencil tom qab luam ntawv txhua 2-3 PCBs, thiab txais yuav qhuav so + lub tshuab nqus tsev ntxhua khaub ncaws kom tsis txhob muab tshuaj txhuam txhuam rau ntawm daim kab xev.

Kev nruj kev lag luam thiab cov txheej txheem kev tswj xyuas kom ua tau raws li cov kev txwv cov khoom Yuav tsum tau PCB cov neeg muag khoom los muab cov ntawv pov thawj zoo plugging kom ntseeg tau tias muaj puv puv vias thiab tiv thaiv cov hlaws hlais hlaws los ntawm kev hla cov ntaub thaiv npog. Thaum muaj teeb meem xws li cov txheej kub nyias thiab npib tsib xee corrosion tau pom, thaiv cov khoom tsis zoo kom tsis txhob muaj kev sib kis loj heev los ntawm qhov txawv txav ntawm kev sib kis.

Txais yuav lwm cov txheej txheem los txo cov kab xev dependence Yog tias cov khoom tsim tau tso cai, siv cov txheej txheem xaiv, xws li kub plating hauv zos tsuas yog rau ntawm cov ntaub qhwv thiab tom qab ua cov ntiv tes kub. Qhov no tshem tawm qhov xav tau ntawm ntug kev tiv thaiv nrog PTFE daim kab xev thiab hauv paus daws qhov teeb meem ntawm kev nkag mus.

Tsim nyog xaiv, txheej txheem lamination thiab tag nrho-txheej txheem kev sib koom tes tswj ntawm PTFE high-temperature daim kab xev yog lub hauv paus tseem ceeb rau tshem tawm solder creeping. Optimizing daim ntawv thov cov ntsiab lus tuaj yeem txhim kho cov txiaj ntsig ntau lawm thiab txo cov nqi rov ua haujlwm.

Cov ntsiab lus saum toj no yog muab los ntawm Jiangsu Aokai New Materials Technology Co., Ltd.

Yog tias koj xav tau cov ncauj lus kom ntxaws, daim ntawv thov thiab cov kev daws teeb meem rau PTFE high-temperature daim ntaub, PTFE high-temperature tape, PTFE mesh siv, seamless fusing tshuab siv, ib sab PTFE coated daim ntaub, high-temperature resistant conveyor siv thiab fiberglass daim ntaub, thov hu rau peb:

·  Mr. Guo: +86 18944819998

·  Mr. Liu: +86 13705266308

Peb ua raws li kev lag luam lub tswv yim ntawm kev tshaj lij thiab kev ncaj ncees, thiab muab ib qho kev lag luam txhawb kev daws teeb meem thiab xav txog kev pab cuam tom qab muag rau cov neeg siv khoom thoob ntiaj teb.