Aw Fayba Glas Tɛmral Shrinkage Afɛkt PTFE Tep Dimɛnshɔnal Stebiliti

WAN PTFE tep we de shrink, kɔl, ɔ wɔp we yu de yuz am na kɔmɔn fil we nɔ de wok. di rut kכz kin tray bak to wan paramita: di tεmral shrinkage rεt fכ di fayv glas sabstεrayt.

Durin PTFE sintering na 360-400°C ɛn adhesive curing na 150-200°C, di fayv glas fכbrik de כnda tεmכl εkspכnshכn εn, mכr krεs, i rεvεrsibl shrinkεj frכm rεsidyual wev strεs. If dɛn nɔ pul dis strɛs bifo dɛn kɔt am, i kin bi wan prɔblɛm we ayd – we kin mek di tep shrink, kɔl, ɔ delaminate we dɛn ɔt am.

Aokai PTFE de yuz ful ɔt-sɛt fayv glas sabstret fɔ pul dis prɔblɛm. Dis atikul de εksplen di rut kכz fכ tεmral shrinkεj, in impak dεm na εvri prכsεsin stej, εn di kכr sכlushכn: prε-hεt-sεt fכbrik wit <0.5% shrinkεj na 400°C.

Rut Kɔz – Rɛsidyual Strɛs frɔm Wiv

Tεmכl shrinkεj fכndamεntli kכmכt frכm intanεt rεsidyual strεs we dεn akumulet di tεm we dεn de drכ glas fayba εn fכ wiv fכ fכm. Fayba glas klos we nɔ gɛt ful ɔt sɛtin go ɔnda shrinkage we nɔ go ɛva chenj wans dɛn dɔn ɔt am ɔp in strɛs rilis trɛshɔld (rimarkabl shrinkage de stat ɔp 300°C).

Eni shrinkage strεs we nכ kכmplit כ we nכ kכnstrakt de bi di kכr hiden trobul we de mek di tep dimεnshכn dεm nכ stebul. dis strεs de 'lכk' insay di fabrik strכkchכ we dεn de wiv εn i de כnli rilis we dεn hεt am to inof tεmprachכ.

Impekt During PTFE Sintering – Di Kritikal Stej

PTFE sintering temperechur rich 360-400°C, fa pas di onset temperechur of fiberglass thermal shrinkage, we mek dis stej di disisiv factor f dimenshonal pefomans.

1. Lɔk shrinkage strɛs de mek layt dimɛnshɔnal difrɛns

If dɛn prosɛs am ɔnda lɔw tɛnsiɔn, di fayv glas klos kin shrink fri wan ɛn drastik wan, we kin mek di lɔng ɛn waid dimɛnshɔn dɛn we nɔ standad. If dɛn put tɛnsiɔn pasmak fɔ mek dɛn nɔ shrink, dɛn kin fos di glas fayv dɛn fɔ lɔng. we i de arawnd 380°C, di PTFE we mכlt de infiltret εn rap di fayv dεm we dεn strεch; afta di kol εn shep, di layt shrinkage tεndens de lכk fכ tεm insay di sabstεrayt as masiv rεsidyual tεnsil strεs. wans di tep dεn rihit insay leta prosidכs dεm, dis rεsidyual strεs de trigεr sabstεrayt shrinkεj εn dεn de pwεl dimεnshכnal stεbiliti dεn dεn wan dεm.

2. Uneven sabstret flatnɛs de ɔndamin di kɔtin yunifɔmiti

Inkonsistent tεmral shrinkεj rεt akraos difrεn fכbrik zכn dεm (εgz., edj vs. sεntri εria) di tεm we dεn de sinter de trig difכmeshכn inklud wev edj, kכp margin, εn sכfayz bulj . di sabstεrayt sεf we nכ ivin de lid to di tik we nכ ivin adhesive kכt insay di prכsεs dεm we de kam afta, i izi fכ mek di ay bכbul כ pwεl adheshon we dεn de lamine, εn indaykt wan de dεtεriכr כl tu di dimεnshכnal εn fכnshכnal stεbiliti fכ di tεp dεm we dεn dכn.

Impact During Adhesive Curing – Sɛkɔndari Strɛs Rilif

Adhesive sistem (silikon prɛshɔn-sɛnsitiv adeziv, akrilik adhesive, ɛn ɔda tin dɛn) kin mɛn na 150-200°C. dis tεmprachכ lכw pas sintering rεnj yet inof fכ aktibכt rεsidyual lכk strεs insay di sabstεrayt, we de bכn mכltipכl advεs kכnsekvεns.

1. Sεkɔndari shrinkage de mek sɔfayz difεkt ɛn dimɛnshɔnal dɛvyayshɔn

We yu go insay di ɔvin we de kia, di rεsidyual shrinkεj strεs insay di sabstεrayt de rilis εn mek di tεp shrinkεj we yu kin mεzhɔ. Dis kin mek yu gɛt:

• Ridyus di wit we pasmak

• Maykro-krak, ɔrɛnj pil tɛkstɔr, ɔ kɔhisiv fayl pan di adhesive surface (as shrinkage de apin wan tɛm wit curing)

• Longitudinal fluktueshɔn in adhesive tiknes ɛn wrinkling fɔ rilis layna dɛn (bikɔs ɔf mismatch bitwin fabrik shrinkage spid ɛn kɔtin rɔla linya velositi)

2. Tεmכl kכl de εliminet prכsεsin prεsishכn

di sabstεrayt layεr de aktivli kכntrakt כnda hεt rεsidyual strεs, we di ful kכryu adhesive layεr gεt difrεnt kכfishεnt fכ tεmral εkspεns, we de mek siriכs strεs mismatch bitwin tu layεr dεm. Di tep kin kɔl wantɛm wantɛm we dɛn pul am frɔm rilis layna ɔ i kin put am pan ɔt we i de yuz am – i nɔ kin le flat ɛn i kin lɔs dimɛnshɔnal kɔntrol ɛn wokabiliti.

Kɔntinyu Strɛs Rilis We Dɛn De Yuz am fɔ Ɛnd – Lɔng Tɛm Instability

rεsidyual shrinkage strεs we nכ fulכp εliminet di tεm we dεn de kכl adhesive de persist insay finished prodak aplikεshכn. Ɔnda ay-tɛmpracha mask, tɛmal laminɛshɔn, ɔ tɛmal sayklin kɔndishɔn (ɛgz., 260°C pauda kɔtin), di tep de shrink smɔl smɔl ɛn kɔntinyu.

Rizɔlt dɛn:

• Shifted masking boundaries (sil layn dɛn de muv) .

• Edj liftin ɔ adhesion fayl

• Komplit lכs כf dimεnshכnal stεbiliti

dis na di rizin we mek sכm tep dεm de fεl na di fil ivin afta dεn pas di fכs inspekshכn – di layt strεs de kכmכt sכmtεm ova tεm εn hεt εkspכzכn.

Kor Sɔlwɛshɔn – Ɛliminet Shrinkage Bifo Sintering

Fɔ mek dimɛnshɔnal stebul PTFE adeziv tep dɛn, fɔs tɛnsiɔn strɛch di tɛm we dɛn de prosɛs nɔ kin ebul fɔ sɔlv shrinkage ishu dɛn fondamental wan. Fɔ pul di fayv glas shrinkage kɔmplit wan na di say we dɛn pul am.

1. Di Aokai PTFE we fɔ du tin

1. Yuz ful ɔt-sɛt (pri-shrunk) fayv glas bays klos – tɛmal shrink rit we dɛn strikt wan kɔntrol dɔŋ 0.5% ɔnda tɛst kɔndishɔn we na 400°C × 10 minit (tayt standad dɛn de fɔ prɛmiɔm gred dɛn).

2. Ad wan ay-tɛmpracha prɛ-fayrin prosidyushɔn bifo PTFE impregnashɔn ɔ kɔtin – alaw di fayv glas klos fɔ kɔmplit fri shrinkage ɛn ful-ɔp fɔ rilis ɔl di intanɛnt strɛs bifo i go insay di sintering zon.

2. Di rizulyt

Wans di fayv glas fabrik in tεmכl shrinkεj rεt dεn minimiz, dimεnshכnal vεryushכn dεm we di sכbsεkvεnt sinterin εn adhesive curing go כnli stem frכm tεmral εkspεnsכn εn kכntrakshכn כf rεsin εn adhesive layεr dεm – wit wan fa sכm magnitכd pas rεsidyual strεs-driv shrinkεj. Dis de rili garanti se:

• Dimenshɔnal stebiliti (lɛng ɛn wit) .

• Di flat we di surface de flat

• Hɛt resistans ɛn lɔng tɛm rilaybiliti

Aokai PTFE de pik ɔl di ful ɔt-sɛt fayv glas sabstret dɛn wit dɔkyumɛnt shrinkage rɛt. Wi kin gi tɛst data fɔ ɛni kɔstɔma rikwaymɛnt.

Sɔmari – Di Prinsipul bifo di Shrinkage

Aokai PTFE rεkomεnd prε-hεt-sεt fayv glas wit shrinkεj <0.5% fכ כl dimεnshכn-kritikal aplikεshכn dεm. Fɔ kɔstɔma dɛn we nid ɔlta-stebul dimɛnshɔn, wi de gi prɛmiɔm gred wit shrinkage <0.3% na 400°C.

Dis teknikol kɔntinyu na bay Jiangsu Aokai Nyu Matirial Teknɔlɔji Kɔmni, Ltd.

If yu nid ditayl spɛsifikɛshɔn, aplikeshɔn sɛnɛriɔ ɛn kɔstɔmayz sɔlvishɔn fɔ wi ful prodak layn ap inklud PTFE ay-tɛmpracha adhesive tep, PTFE ay-tɛmpracha adeziv tep, PTFE mɛsh kɔnvaysɔ bɛlt, simlɛs fiuzin mashin bɛlt, singl-sayd PTFE kɔt klos, ɔt-rɛsistant kɔnvaysɔ bɛlt ɛn ay-tɛmpracha fayvglas fabrik, duya kɔntakt wi bay di chanɛl dɛn we de dɔŋ ya:

• Mista Guo: +86 18944819998 kin yuz am

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