Akwan a Wɔfa so Hwɛ Crystallinity a PTFE Coating wɔ Teflon High-Temperature Cloth so

I. Mmara a Ɛyɛ Pɛpɛɛpɛ a Ɛfa Cooling Rate Ho

Wɔn a wɔyɛ teflon ntama a ɛyɛ hyew kɛse kyerɛ sɛ onwini dodow a wɔhwɛ so ne ɔkwan a ɛkɔ tẽẽ na etu mpɔn sen biara a wɔfa so siw ahwehwɛ so. Bere a PTFE ayɛ nwini koraa a ɛboro 380 ° C akyi no, molecule nkɔnsɔnkɔnsɔn hyehyɛ mu yɛ ahwehwɛ lattices bere a ɛfa ahwehwɛ dodow a ɛsen biara a ɛyɛ hyew a ɛyɛ 310 ~ 315 ° C bere a ɛyɛ nwini no. Onwini dodow no na ɛkyerɛ ahwehwɛ mpɔtam kyɛfa ne microscopic nsɛso a ɛwɔ ade a wɔde kata so no.

1. Ntɛmntɛm onwini (quenching) ma ahwehwɛ a ɛba fam

Wɔnam mframa a ɛyɛ nwini ntama, onwini rollers anaa nsukorabea a ɛyɛ hyew a ɛfata so ma ntama a wɔayɛ no sintered no ani yɛ nwini ntɛmntɛm. Wɔde molecule nkɔnsɔnkɔnsɔn no yɛ nwini ansa na wɔayɛ nhyehyɛe daa na wɔahyehyɛ no nnidiso nnidiso, na ɛyɛ ahwehwɛ nketenkete a ɛnyɛ pɛ pii. Coating a wonyae no wɔ soft texture ne toughness a ɛkyɛn so a optimized non-stick adwumayɛ, bere a ne hardness ne wear resistance so tew kakra.

2. Nwini a ɛyɛ brɛoo (annealing) ma crystallinity a ɛkorɔn

Wɔahyehyɛ ɔhyew a wɔkora so ɔfã bi wɔ baabi a sintering fononoo no fi adi, anaasɛ wɔde fononoo no ma ntama no dwo wɔ brɛoo koraa a ɛyɛ 10 ~ 50°C/h. Eyi ma molecule nkɔnsɔnkɔnsɔn no tu sɛnea ɛsɛ ma ɛyɛ spherulites akɛse a edi mũ. Coating no hoahoa ne ho sɛ ɛyɛ den kɛse, ɛda nsow a ɛko tia ɔsɛe ne stable dimensional stability, nanso ɛwɔ flexibility a ɛso atew ne brittleness a ɛkɔ soro.

II. Ɔkwan a Wɔfa so Boa ne Nneɛma a Wɔde Di Dwuma

Wogyina onwini dodow ho mmara so no, nneɛma a ɛboa a edidi so yi betumi ayɛ PTFE a wɔde kata so no ahwehwɛ no yiye bio.

1. Sintering hyew ne bere a wɔde kura mu

Ɛsɛ sɛ wɔma ade no yɛ hyew kodu 380 ~ 400 ° C na wɔkura mu bere a ɛdɔɔso a ɛbɛma mfitiase ahwehwɛ no ayow koraa na wɔayi ɔhyew abakɔsɛm afi hɔ. Sintering a ɛnsɛ no bɛma ahwehwɛ nuclei a aka, na ɛde crystallinity a etwa to a ɛkorɔn dodo na ɛnyɛ pɛpɛɛpɛ aba.

2. aduruyɛ akyi aduruyɛ

Wɔ coatings a ɛwɔ crystallinity a ɛba fam a wonya denam onwini a ɛyɛ ntɛmntɛm so no, wobetumi ayɛ crystal nyin a ɛto so abien ne emu nhyɛso a woyi fi hɔ denam daa-ɔhyew ayaresa wɔ 300 ~ 320 ° C nnɔnhwerew pii akyi brɛoo onwini, a moderately nkɔanim coating crystallinity.

3. Raw nneɛma molecule mu duru

PTFE a ɛbɔ apete a emu duru yɛ kɛse no da melt viscosity a ɛkorɔn ne molecule nkɔnsɔnkɔnsɔn a ɛba fam adi, na ɛde crystallization rate a ɛyɛ brɛoo ba. Wɔ onwini tebea koro no ara mu no, ɛnyɛ den sɛ wobesiesie nneɛma a wɔde kata so a ɛnyɛ ahwehwɛ pii.

4. Nucleating aduru a wɔde ka ho

Dosage ketewaa bi (0.1% ~ 1%) a inorganic fillers anaasɛ perfluorinated copolymers betumi ama dodow bi a heterogeneous crystal nuclei na kɛse asiesie crystal aburow. Ɛwom sɛ entumi nsakra ahwehwɛ no nyinaa kɛse de, nanso ɛma ahwehwɛ no mu nneɛma nketenkete no yɛ papa wɔ ɔkwan a etu mpɔn so.

III. Nhwɛso a ɛkɔ akyiri ma Multi-Layer Coating Production

Wɔnam impregnation ne sintering akwan pii so na ɛyɛ teflon ntama a ɛyɛ hyew kɛse a wɔde nkakrankakra aboaboa ano akata so, a ɛhwehwɛ sɛ wɔde wɔn ani asi nhyehyɛe so sɛnea edidi so yi.

1. Interlayer crystallization a ɛyɛ pɛpɛɛpɛ

Nsonsonoe kɛse a ɛboro so a ɛwɔ onwini dodow a ɛwɔ ntoatoaso ahorow ntam no bɛma ntamadan no ntam ahwehwɛ a ɛnkɔ so pɛpɛɛpɛ aba na ɛde emu nhyɛso aba, na ɛde nkataso no asɛe mpo wɔ tebea horow a emu yɛ den mu. Wɔkamfo kyerɛ sɛ wɔmfa onwini a ɛnyɛ den ntom mma ntamgyinafo, na wɔmfa onwini a wɔde asi wɔn ani so ntɛmntɛm anaa brɛoo nni dwuma mma akyi fã a ɛwɔ akyi no nkutoo sɛnea nneɛma a wɔyɛ no ahwehwɛde te.

2. Coating thickness nkɛntɛnso

Nneɛma a wɔde kata so a ɛyɛ den no hu amane wɔ asynchronous cooling a ɛwɔ soro ne emu ade no ntam. Mfinimfini fã no taa yɛ ahwehwɛ a ɛkorɔn esiane ɔhyew a ɛkɔ brɛoo nti. Ɛho hia sɛ wɔtrɛw sintering bere no mu sɛnea ɛfata na ama wɔahwɛ ahu sɛ ɔhyew a ɛwɔ ade a wɔde kata so no nyinaa mu yɛ pɛ ansa na wɔde onwini akwan a wɔaka abom adi dwuma.

3. Tension matching bere a onwini

Nhyɛso a wɔde hyɛ ntama no ani bere a wɔreyɛ onwini fã no nya molecule nkɔnsɔnkɔnsɔn no kwankyerɛ, a ɛne ahwehwɛ nhyehyɛe no bom na ɛka bom kyerɛ ahwehwɛ no nsɛso a etwa to ne ne kɛse a egyina pintinn. Ɛyɛ ahyɛde sɛ wɔyɛ nhyehyɛe a wɔde di dwuma pɛpɛɛpɛ na wɔyɛ no pɛpɛɛpɛ.

IV. Dodow mu Nhwehwɛmu a Ɛfa Crystallinity Ho

Ɛsɛ sɛ wɔfa Differential Scanning Calorimetry (DSC) de hwɛ sɛ crystallinity yɛ nokware wɔ nhyehyɛe mu nsakrae akyi. Wɔde 5 ~ 10mg coating sample yɛ hyew wɔ rate a ɛyɛ 10 ° C / min de sɔ melting enthalpy hwɛ. Wɔnam nsuo a ɛyɛ nwene a wɔasɔ ahwɛ no a wɔkyekyɛ mu denam nsusuiɛ a ɛyɛ nsuo a ɛyɛ 100% ahwehwɛ PTFE (bɛyɛ 82J/g) so na ɛbu ahwehwɛ no. Sɛ wɔde ka bom ne bending resistance, wear resistance ne adwumayɛ sɔhwɛ afoforo a, wobetumi ahu adeyɛ mfɛnsere a eye sen biara.

General Operation Principles : Sɛ wopɛ sɛ wunya crystallinity a ɛba fam a, fa quenching di dwuma ntɛm ara bere a woayɛ sintering koraa akyi; sɛnea ɛbɛyɛ a wubenya ahwehwɛ a ɛkorɔn no, ma ɔhyew no nkɔ so bɛn 310°C bere nyinaa na ɛno akyi no, fa onwini brɛoo kɛse bere a woayɛ no sintering koraa akyi.

Mfiridwuma ho nsɛm a ɛwɔ atifi hɔ no, wɔde ma Jiangsu Aokai Nneɛma Foforo Mfiridwuma Co., Ltd.

Sɛ wopɛ nsɛm a emu dɔ wɔ parameters a ɛkɔ akyiri, application scenarios ne customized ano aduru a yɛn nneɛma nyinaa a ɛka ho ne Teflon ntama a ɛyɛ hyew kɛse, Teflon ɔhyew a ɛkorɔn adhesive tape, Teflon ɔhyew a ɛkorɔn mesh belt, seamless bonding machine belt, PTFE ntama a ɛwɔ afã biako, conveyor belt a ɛko tia ɔhyew a ɛkorɔn ne nea ɛko tia ɔhyew a ɛkorɔn fiberglass ntama, yɛsrɛ sɛ ntwentwɛn wo nan ase sɛ wobɛka yɛn ho asɛm wɔ intanɛt so anaasɛ wobɛka yɛn service hotline.

Ɔsom Ho Ntrɛwmu : .

Owura Guo: +86 18944819998 Ɔde ne nsa kyerɛɛ ne so

Owura Liu: +86 13705266308 Ɔde ne nsa kyerɛɛ ne so

Yɛdi adwumayɛfoɔ ne nokwaredi som nyansapɛ so, yɛasi yɛn bo sɛ yɛde ano aduru a ɛwɔ baabi baako ne nnwuma a wosusuw ho bɛma adetɔfo nyinaa!