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PTFE Fabric Coating Uniformity: Swilo swa 4 leswikulu leswi u faneleke ku swi lawula

Ku langutiwa: 0 Mutsari: Muhleri wa Sayiti Nkarhi wo kandziyisa: 2026-05-28 Masungulo: Ndhawu

Vutisa

Ku peta ka PTFE lokunga ringaniki swi endla leswaku kuva na swirhendzevutani, ti pinholes, ku tshwuka, kumbe matirhelo lawa yanga fambelaniki ya non-stick. Eka switirhisiwa swofana na heat sealing belts, conveyor belts, na release liners, kufana ka coating swi khumba hiku kongoma khwalithi ya swihumelerisiwa xikan’we na vutomi bya vukorhokeri.

I yini lexi vangaka ku peta loku nga ringaniki? Nhlamulo yi hlanganisa tindzhawu ta mune: ku endliwa ka coating, coating & sintering process, khwalithi ya substrate, na ndzhawu ya vuhumelerisi.

Aokai PTFE yi antswisile swilo leswi eka magidi ya ku tsutsuma ka vuhumelerisi. Xihloko lexi xi hlamusela mhaka yin’wana ni yin’wana ni ndlela yo swi lawula leswaku swi va swa xiyimo xa le henhla, leswi fanaka Lapi leri funengetiweke hi PTFE.

Coating Formulation – Xivangelo xa Rimitsu xa kufana

Parameter ya Xivumbeko	Ideal Range / Xilaveko	Ha Yini Swi Ri Swa Nkoka
Vukulu bya swiphemuphemu swa PTFE	0.15 – 0.35 μm (D50) .	Ku hangalasiwa lokukulu ngopfu swi onha ku nghena ka substrate xikan’we na matirhelo ya film-forming
Ndzilo wa molekhuli & viscosity	Ku ringanisela – ku nga ri ehenhla ngopfu kumbe ehansi ngopfu	Viscosity ya slurry leyinga tolovelekangiki hiku kongoma yi sivela hambi kuri ku hangalaka
Nhundzu leyi tiyeke	60±2% (leswi tolovelekeke eka ku cheriwa) .	Swilo leswi tiyeke leswi tlakukeke ngopfu swivanga kuhunguteka lokunga ringaniki hinkarhi waku omisiwa
Ku hangalaka	Ku hava ku hlanganisiwa ka swilo	Ku hangalaka lokunga kahle swiendla leswaku kuva na swirhabyani swa ndzhawu yale kusuhi xikan’we na swihoxo swa coating
Nhlayo ya filler (xikombiso, ceramic powder) .	Ku nga cinci, ku hangalakile kahle	Ku cinca xiyimo xa le henhla xa microscopic; filler leyi nga fambelaniki yi vanga ku hambana ka vukulu

Xitsundzuxo lexi tirhaka: Minkarhi hinkwayo kambela ntlawa wun’wana na wun’wana wa PTFE emulsion eka ku hangalasiwa ka vukulu bya ti particle xikan’we na viscosity loko kungase endliwa vuhumelerisi. Ku cinca ka 10% eka viscosity swinga cinca coating pickup hi 5-8%.

Vuxaka exikarhi ka vukulu bya ti particle ta PTFE na ku fana ka coating switala ku tekeriwa ehansi. Ti emulsions letingana D50 ehansi ka 0.12 μm ti khuluka hiku olova swinene, leswi endlaka leswaku kuva na edge bead (thicker coating eka makumu) hinkarhi waku omisiwa. Ti emulsions letingana D50 yale henhla ka 0.4 μm ti nghena kahle eka fiberglass, leswi endlaka leswaku kuva na surface porosity xikan’we na fibre encapsulation leyinga tsana. Ndzhawu leyinene (0.18-0.22 μm) yinyika ku nghena kahle xikan’we naku tumbuluxiwa ka filimi hiku olova. Xin’wana xa nkoka i surfactant content – surfactant yotala swinene yivanga foaming hinkarhi wa dip coating, leswi endlaka leswaku kuva na ti air bubbles leti pfurhaka naku siya ti craters. Surfactant yitsongo swinene yi endla leswaku kuva na particle agglomeration xikan’we na ‘fish eyes’ eka coating yohetelela. Ku kuma ku fana loku nga cincekiki, tirha na muphakeri un’we wa emulsion naswona u kombela switifikheti swa ntlawa leswi kombisaka D50, D90, na tiphesente ta surfactant.

Aokai PTFE yi tirhisa ntsena PTFE emulsion leyi lawuriwaka swinene hi ku hangalasiwa ka vukulu bya ti particle (D50 0.18-0.22 μm, D90 <0.35 μm). Leswi switiyisisa ku nghena lokunga cincekiki xikan’we naku hetiseka ka vuandlalo byo olova eka ntlawa wun’wana na wun’wana wa lapi.

Endlelo ro Coating & Sintering – Xiyenge xa Xiboho xa ku Fana

1. Ku pimanisiwa ka Ndlela yo Peta

Ndlela	Nsinya wa nawu	Xiyimo xa ku Fana	Swilo leswinene	Swiphiqo
Ku pfariwa ka dip	Substrate yi hundza hi le ka bath ya emulsion	Xikarhi	Ku tsakamisa kahle hiku angarhela, ku pfaleriwa ka fibre	Swirhendzevutani swo leha, matlhelo yo tiya, xikarhi xo olova
Ku pfariwa ka blade	Precision dokodela blade timitara ku peta	Ku tsakeriwa – ku fana ka le henhla swinene	Xifunengeto xo olova, xo enta, ku hava ti pinholes/streaks	Ku tiveka eka ku flatness ka substrate
Ku fafazela ku peta	Ku tirhisiwa ka xifafazeri lexi endliweke hi atomized	Vusweti	Swikahle eka swivumbeko leswinga tshamisekangiki	Parameter-sensitive (mpfhuka, ntshikelelo), ayi ringanelanga eka vuhumelerisi bya xitalo

Maendlelo ya kahle eka indasitiri: Endlelo leri hlanganisiweke – dip coating + blade coating – ri amukeriwile ngopfu. Leswi swihlanganisa ku tsakama ka xiyimo xale henhla hiku angarhela ka dip coating na outstanding surface flatness ya blade coating, ku ringanisela matimba ya fibre encapsulation xikan’we naku kongoma ka le henhla.

PTFE_Ku pimanisa_Maendlelo_ya_Ku Funengeta.png

2. Swiyimo swo Omisa & Sintering

Parameter	Vuyelo Eka Ku Fana
Mpimo wa ku omisa	Ku omisiwa lokunga ringaniki (ku hatlisa ngopfu kumbe hiku nonoka ngopfu) swivanga ku enta ka film lokunga fambelaniki, ku pandzeka kumbe swikombiso swa ku hunguteka
Ku hisa ka sintering	PTFE yifanele ku n’oka yiva filimi leyi yaka emahlweni eka 360-420°C . Mahiselo lawa yanga ringaniki ya endla leswaku kuva na ku n’oka lokunga fambelaniki naku levela
Nkarhi wa ku sintering	Nkarhi lowu nga enelangiki → ku vumbiwa ka filimi loku nga helelangiki; nkarhi wo tlula mpimo → ku tshwuka kumbe ku onhaka hi ku hisa
Ku fana ka mahiselo ku tsemakanya oven	Swivati swa ndzhawu yo hisa/ku titimela swivanga ku hambuka ka mihlovo (xikombiso, ku tshwuka eka tindzhawu tin’wana) .

Endlelo leri hlanganisiweke ra dip + blade i mpimanyeto wa indasitiri eka malapi ya xiyimo xa le henhla ya PTFE ya mahiselo ya le henhla. Hi leswi xivangelo: dip coating ntsena yi humesa ‘meniscus effect’ – coating yi tiya emakumu naswona yi olova exikarhi hikokwalaho ka surface tension ya emulsion loko lapi ri huma eka bath. Kuhambana loku kusuka eka tlhelo kuya exikarhi kungava 15-20% wa vukulu hinkwabyo. Blade coating ntsena, loko yirikarhi yi humesa flat surface, yi lwisana na ku nghena – PTFE yitshama yiri ehenhla handle ko pfalela hiku hetiseka ti fibreglass fibres, leswi yisaka eka ku tiya ka abrasion lokunga kahle. Endlelo leri hlanganisiweke: dip for penetration, kutani hiku hatlisa u hundza ehansi ka doctor blade ku susa leswi tlulaka mpimo naku levela vuandlalo. Ku kuma mbuyelo lowunene, blade gap yifanele ku vekiwa eka 120-150% wa ku enta ka coating yohetelela leyi lavekaka, leswi hlamuselaka kuhunguteka hinkarhi wa ku omisiwa. Temperature profiling ku tsemakanya oven ya sintering na yona i ya nkoka swinene – 10°C gradient ku tsemakanya ku anama yinga vanga swirhendzevutani leswi vonakaka.

Khwalithi ya Substrate & Pre-treatment – Masungulo ya ku Fana

Nghenisa	Vuyelo eka Ku Fana ka Ku Peta
Xifaniso xo luka	Plain weave: xivumbeko xo tiya, ku tshamiseka ka kahle ka dimensional, ku nghenelela loku nga riki kahle. Satin weave: xivumbeko xo olova, ku nghena ka le henhla, ku namarhela ka le henhla. Twill: ya le xikarhi. Ku hambana ka weave density swi khumba hiku kongoma ku nghena ka emulsion.
Swilo leswi thyakeke ehenhla ka misava	Paraffin leyi saleke, switolwa kusuka eka ku dirowa/ku luka swi sivela swinene hambi kuri ku hangalaka ka PTFE naswona swivanga swihoxo swa coating
Ku khwaxa ka le henhla	Ku khwaxa lokunga fambelaniki swivanga ku hlengeletiwa ka swifunengeto leswinga tolovelekangiki (ku tiya eka tindzhawu letinga tsindziyela, ku olova eka tindzhawu leti rhetaka) .

Xitsundzuxo: Eka switirhisiwa swa high-uniformity (xikombiso, ti heat sealing tapes), tirhisa satin weave fiberglass fabric na heat cleaning ku susa masalela hinkwawo ya organic loko unga se peta PTFE.

Ku Luka_Xivumbeko_vs_Ku Famba_Ku Famba.png

Ndhawu ya Vuhumelerisi – Xitiyisekiso xa ku Fana ka le Henhla

Mhaka ya Ntivo-mbango	Xiyimo Lexinene	Hikokwalaho ka yini
Mahiselo	20-25°C	Mahiselo lawa yanga ringanelangiki ya tsanisa matirhelo ya coating leveling
Ku kufumela loku ringanaka	<60% (leswinene: 40-55%) .	Kutsakama lokukulu swivanga ku hlangana ka mati eka emulsion, leswi endlaka leswaku kuva na ti pinholes
Ku basa ka moya	A ku na ntshuri (ku bumabumeriwa ku sefa ka HEPA) .	Ntshuri lowu fambaka emoyeni wu nghena eka ku peta, wu endla swihoxo swa le henhla
Ku khuluka ka moya	Ku lawuriwa, ku hava switsalo leswi kongomeke	Ku khuluka ka moya lokunga ringaniki swivanga ku oma lokunga tshamisekangiki eka ku anama ka lapi

Xitsundzuxo lexi tirhaka: Hi tinguva ta mpfula kumbe masiku lawa ku nga ni ndzhongho lowukulu, anakanya hi ku tirhisa xitirhisiwa xo susa ku kufumela ekamareni ro peta. Kutsakama kale henhla ka 70% swiendla leswaku kuva na swihoxo swa pinhole.

Nkatsakanyo – Ku Swi Hlanganisa Hinkwaswo

Nghenisa	Ndhawu ya Vulawuri ya Nkoka Ngopfu	Nkoka/Range leyinene
Ku vumbiwa ka swilo	Ku hangalasiwa ka vukulu bya swiphemuphemu	D50 0,18-0,22 μm, D90 <0,35 μm
Ku vumbiwa ka swilo	Nhundzu leyi tiyeke	60±2% .
Endlelo	Ndlela yo peta	Dip + blade yi hlanganisiwile
Endlelo	Ku fana ka mahiselo ya sintering	±5°C ku tsemakanya ku anama ka oven
Substrate	Xifaniso xo luka	Satin weave ya ti-app ta nkoka ta ku fana
Substrate	Ku tshunguriwa ka le mahlweni	Yi basisiwa hi ku hisa, yi nga ri na masalela
Mbango	Ku hisa & ku kufumela	20-25°C, RH <60% .

Hi ku komisa , ku fana ka ku peta ka lapi ra mahiselo ya le henhla ya PTFE swi titshege hi swilo swa mune leswi hlanganisiweke. Ku endliwa ka coating (vukulu bya ti particle, viscosity, solid content) i xivangelo xa rimitsu. Endlelo ro peta na ku sintering – ngopfu ngopfu hiku tirhisa dip + blade swihlanganisiwile – i xiteji xa xiboho. Khwalithi ya substrate xikan’we na pre-treatment swinyika masungulo. Ndzhawu ya vuhumelerisi yitiyisisa kutshamiseka.

Eka switirhisiwa leswi lavaka kufana kale henhla (xikombiso, ti heat sealing tapes, release liners eka switirhisiwa swo namarhela), dip + blade combined process i industry gold standard. Languta parameter yin’wana na yin’wana nkarhi na nkarhi, hlayisa swiyimo swa mbango switshamisekile, naswona kambela ti emulsions leti nghenaka eka ku hangalasiwa ka vukulu bya ti particle.

Xana u lava mpfuno wo fikelela ku fana ka ku peta loku nga cincekiki ka lapi ra wena ra PTFE? Aokai PTFE yi nyika vukorhokeri bya ku peta hi ku landza swilaveko na vuhlanganisi bya maendlelo. Tihlanganise na hina hi swihlawulekisi swa wena leswi kongomisiweke na vholumo ya vuhumelerisi.

Vuxokoxoko lebyi nga laha henhla byi nyikiwile hi Jiangsu Aokai Switirhisiwa Leswintshwa Thekinoloji Co., Ltd.

Loko u lava ku tiva swo tala hi vuxokoxoko bya swihlawulekisi, swiyimo swa xikombelo, na swintshuxo leswi endleriweke ku tirhisiwa hi ku landza swilaveko swa hina hinkwaswo swa swikumiwa, ku katsa na malapi ya mahiselo ya le henhla ya PTFE, tithepi ta mahiselo ya le henhla ya PTFE, mabandhi ya mesh ya mahiselo ya le henhla ya PTFE, mabandhi ya muchini wo fusing lama nga riki na swirhabyani, malapi ya PTFE ya tlhelo rin’we, mabandhi ya conveyor lama nga tiyiseliki mahiselo ya le henhla na high-temperature resistant fiberglass fabrics , hi kombela u ntshunxeka ku hi tihlanganisa:

Nkulukumba Guo: +86 18944819998
Nkulukumba Liu: +86 13705266308

Hi ku namarhela nsinya wa vukorhokeri wa vutshila na vutshembeki, hi tinyiketerile ku nyika swintshuxo swa xiyimo xin’we na vukorhokeri byo tekela enhlokweni eka tikhayente hinkwato.