PTFE High-Temperature Tape hmanga Solder Creeping awm chhan leh a chinfel dan

PTFE high-temperature cloth siamtu professional source a nih angin Jiangsu Aokai New Materials hian professional industry a share a ni insights.PCB hot air solder leveling, gold plating leh immersion gold process-ah te hian PTFE high-temperature tape shielding edge-a solder creeping hi a chhan ber chu tape physical failure leh extreme process environment-a nghawng a neih inzawm vang a ni.

I. Solder Creeping awm chhan

PTFE high-temperature tape forming gaps edge warping Temperature sang taka siam chhuah lai hian temperature a san chuan tape adhesive force a tlahniam thin. Thermal stress do thei tura adhesion a tlem chuan tape edge te chu a warp deuh ang a, capillary gap a siam ang a, liquid solder chu a chhungah a lut thei ang.

Wicking effect leh solder dam accumulation Solder hi taksa lamah chuan temperature sang tak awmna hmunah a tlan chhuak duh hle. Protected area chu temperature sang takah a awm chuan liquid solder chu typical wicking-ah tape gap-te zawhin chunglam hawiin a chho a effect.Chu bakah, PTFE tape thuk lutuk chuan a sir lamah step a siam ang a, chu chuan solder pungkhawmin solder dam a siam ang a, chu chuan solder creeping a tizual lehzual ang.

PTFE high-temperature tape-a material quality inmil lo PTFE tape hnuai lam adhesive layer hi temperature sang takah chuan a luang chhuak a, a chhe thei a, adhesive residue a awm duh hle. Shielding barrier a tichhia mai bakah pads a ti bawlhhlawh bawk a, solder creeping hlauhawmna nasa takin a tipung a ni.

PTFE tape bypass-tu bawlhhlawh Tape chu a awm reng a nih pawhin, PCB via-a solder beads la awmte, emaw, reflow soldering-a flux vaporization avanga solder particle te tak te lo chhuakte chu a puak chhuak a, a tla chhuak thei a, shielding area-ah a lut emaw, a bypass emaw thei a, contamination a thlen thei bawk.

Lamination dik lo leh process inthlak danglamna Tape hman laiin shielding surface tihfai loh emaw, pressing tling lo emaw chuan solder luh theihna tur gap a awm ang.Reflow soldering laiin temperature sang lutuk hian solder fluidity nasa takin a tipung a, PTFE tape ramri kaltlang a awlsam phah a ni.

Gold-plated leh immersion gold surface-a wettability sang tak chuan harsatna a tizual a, Gold-plated leh immersion gold surface-ah hian solder wettability tha tak a awm a. Solder hian rangkachak chunglam a tawk veleh tape kil hrang hrangah a darh chak hle a, chu chuan OSP leh hot air solder leveling process pangngai aiin creeping range lian zawk a siam a ni.Gold layer pinholes leh nickel corrosion ang chi chhiatna hian local wettability pangngai lo a siam ang a, edge solder creeping a tichhe zual ang.

II. A chinfel dan tur: PTFE Tape quality sang tak siamna tur Systematic Application Plan

Qualified products thlan la, lamination operation standardize rawh PCB high-temperature process atana a bik taka siam PTFE high-temperature tape quality sang tak hmang la, lead-free production requirements phuhruk nan temperature resistance 250~260 °C a nei. Grease contamination awm loh nan operation laiin gloves vuah thin ang che.

Solder bead splashing chu shielding atanga a chhe lo tur venna Low-splashing solder paste formula hmang la, reflow temperature curve chu ti tha rawh. Preheating tling hian solvent vaporization nasa tak a veng a, tape shielding atanga solder bead te te a tihchhiat theihna a ti tlem bawk.

Printing leh hmanrua tihfai dan tichak rawh PCB 2–3 tin print zawhah stencil chu tifai la, tape area-a solder paste a tlak loh nan dry wiping + vacuum cleaning mode hmang rawh.Secondary pollution tihbo nan printing machine, mounter track leh fixture-a residual solder powder chu paih fo ang che.

Material tihkhawtlai theihna turin incoming leh process quality control khauh tak PCB supplier-te chuan vias fully filled a nih theih nan leh hidden solder beads-in shielding tape a bypass loh nan qualified plugging quality certificate pe turin a ti tur a ni.Gold-plated board-te tan random solderability inspection ruahman rawh. Thin gold layer leh nickel corrosion ang chi harsatna a awm hnuah, solder darh dan pangngai lo avanga solder creeping na tak a awm loh nan product chhia chu block thin ang che.

Tape-a innghahna tihtlem nan kawng dang hmang rawh Product design-in a phal chuan selective surface treatment hmang la, chu chu pad-ah chauh local gold plating leh gold fingers post-processing te hi a ni. Hei hian PTFE tape hmanga edge shielding hman a ngai tawh lo va, solder creeping issue chu a bulpui berah a chinfel sak bawk.

PTFE high-temperature tape hi a remchan dan anga thlan, standardized lamination leh full-process collaborative control te hi solder creeping tihbo nan a pawimawh ber a ni. Application details optimize hian production yield tha takin a ti tha thei a, rework cost pawh a ti tlem thei bawk.

A chunga kan sawi tak technical content te hi Jiangsu Aokai New Materials Technology Co., Ltd.

PTFE high-temperature cloth, PTFE high-temperature tape, PTFE mesh belt, seamless fusing machine belt, single-sided PTFE coated puan, high-temperature resistant conveyor belt leh fiberglass puan atana parameter kimchang, application case leh customized solutions i mamawh chuan min rawn biak theih reng e:

·  Pu Guo: +86 18944819998 zawhfiah theih a ni

·  Pu Liu: +86 13705266308 ah zawhfiah theih a ni

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