PTFE coating, resin impregnation, emaw lamination emaw tih hmain, . fiberglass puan chu a lo vawt hmasa tur a ni. A tum ber chu tui paih chhuah mai a ni thei a, a nih loh leh textile sizing agents halral (dewaxing), emaw, puan chu coating hmaa temperature nghet takah tihlum a ni thei bawk. Thil tum tin hian temperature leh time setting hrang hrang a mamawh a.
Parameter dik lo chuan impregnation tha lo, bonding chak lo, fabric yellowing, chakna hloh – emaw complete scrap thlengin a thlen thei.
Aokai PTFE hian glass fiber processing lama tawnhriat ngah tak a nei a. He kaihhruaina hian enkawlna chi thum, an temperature range tha ber, hun control dan, leh result mumal tak neih theihna tura practical tips te a sawifiah a ni.
Enkawlna Tum Pathum leh An Temperature Range hrang hrang
Textile sizing (starch, PVA, etc.) chu halral vek rawh.
Ultra-clean surface mamawhna process: resin impregnation, chemical hmanga tihfai
Process transition atan preheating tih a ni
60°C – 100°C thleng a ni
Coating emaw impregnation emaw atan fabric temperature tihsan
Coating line chhunzawm zel, glue dip tank hma; puan lum atanga resin viscosity sang a veng
Routine Moisture Removal – Thil tih dan tlangpui
Hei hi coating emaw lamination emaw hmaa fabric tam zawk tan chuan standard pre-drying step a ni. A tum ber chu fibers inzawmkhawmtu sizing agents te venhim rualin dehumidification uluk taka siam a ni.
1. Temperature control dan tur
Electronic leh reinforcing puan pangngai tan chuan: 105°C – 120°C- ah vawng reng tur a ni.
hmanga enkawl puan tan Silane coupling agents : 110°C hnuaiah dah tur a ni. coupling bonds a tihchhiat loh nan temperature chu
Oven chhunga temperature deviation chu ±5°C chhunga control a ngai a , chu chuan local overheating a awm loh nan.
2. Hun hman dan (puan rit dan a zirin) .
Fabric rit zawng
Hun rawtna siam
Puan te tak te (<100 g/m²) .
Minute 10 – 15 chhung a ni
Puan lian tak & rit tak (200 – 400 g/m²) a ni.
Minute 20 – 30 chhung a ni
Puan thuk / mat (>600 g/m²) a ni.
Darkar 1 – 2 emaw a aia rei emaw
Termination criterion: Constant weight hi a zawna tehna pahnih inkara weight danglamna 0.1% aia tlem a nih chuan a ni. Rolled fabric tan chuan a hmin laiin a hmin laiin spacer strip hmang la, a pawn lam a vawt a, a chhung lam a hnim a awm loh nan.
3. Control point pawimawh tak tak
Oven hian force dehumidification a nei ngei ang . Fresh air valve hawng la, boruak lum tak chu a hun taka chhuah theih nan.
Oven-ah hian overload suh; roll emaw sheet emaw vel boruak kal dan tur enfiah.
Dewaxing leh Thermal Cleaning – Ultra-Clean Surface atan chuan
Fabric chu organic sizing agents awm lo vek tur a nih chuan (eg, aerospace emaw high-temperature composites atana high-performance resin impregnation hmain) thermal cleaning a ngai a ni.
1. Temperature control dan tur
Volatilization & smoking stage: 300°C vel a ni. Oxygen tling leh meikhu chhuahna tha tak a mamawh.
Residue burnout stage: zawi zawiin temperature chu thleng tihsan la 380°C – 450°C , vawng reng la, residual carbon chu a oxidize kim theih nan.
500°C aia sang ngai suh – chutiang a nih loh chuan fiberglass ngei pawh chu a chhe vek ang a, a chhe bawk ang.
2. Hun thununna
Thermal desizing furnace chhunzawm zel tur chuan fabric running speed chu siamrem la, fabric chu high-temperature zone-ah minute engemaw zat atanga minute sawm aia tam a awm theih nan, fabric weight a zirin. Puan rit zawkah chuan rei zawk exposure a ngai.
3. Hmuh theihna tur tehfung
Loss on ignition (LOI) chu 0.1% aia tlem a ni tur a ni. Hei hi rangkachak tehfung a ni.
Field test awlsam: Fabric corner pakhat chu lighter hmangin hal rawh. Qualified material hian meikhu dum emaw, rim danglam tak emaw a siam lo va, vut awm zat a tlem hle.
Qualified fabric chu a dum emaw, a rawng hmasa ber a vawng reng emaw a ni a, dum emaw, sen hring emaw a awm lo.
4. Follow-up notes te
Dewaxed fiberglass fabric hian surface activity sang tak a nei a . Impregnation process lo awm turah transfer nghal la, a nih loh leh seal leh package tha takin, moisture leh contamination a re-absorp loh nan.
Coating hmaa Preheating – Process Stability atan
PTFE emulsion emaw silicone rubber coating emaw i hnawih hmain puan chu temperature nghet takah gentle preheating a ngai mai thei.
1. Preheating parameters te
Set temperature: 60°C – 80°C , ambient dew point aia sang deuhah coatings te surface drying rang lutuk lo turin.
Residence time: a tlangpuiin second dozens atanga minute khat emaw minute hnih emaw vel short-range infrared emaw hot air oven hmangin – puan chu target temperature-a thlen theihna tur chauh a ni.
2. Hman dan tur kaihhruaina hmantlak
Oven air temperature ni lovin, fabric temperature tak tak chu standard atan la rawh. Real-time monitoring atan infrared thermometer emaw a kaihhnawih temperature tehna hmanrua emaw hmang rawh.
Uniform air flow & circulation – boruak lum convection hian drying efficiency a tichiang a ni. Thli chakna inang tlang chuan puan zau zawng zawngah temperature insem dan inang tlang a siam a ni.
Sample test hmasa ber: Batch hrang hrangah sizing agent hrang hrang an hmang thei. Sample te te la in temperature hrang hrang (105°C, 120°C, 130°C, etc.) ah vawt rawh. Batch tin tana temperature him ber a nih theih nan surface discoloration leh strength changes te enfiah thin ang che.
A vawt hnua dahkhawm – Re-Contamination ven
Dried fabric, a bik takin dewaxed fabric hi hygroscopic a ni a, awlsam takin a bawlhhlawh thei bawk.
Hman nghal tur a nih loh chuan aluminium foil bag-ah desiccant hmangin seal rawh.
A dang: drying room- ah dah la , temperature 30°C aia hniam leh relative humidity 40% hnuai lam dah tur a ni.
Recommended usage window: a vawt hnu darkar 4 atanga darkar 8 chhungin result tha ber tur. Chumi piah lamah chuan hman hmain re-dry hmasa phawt ang che.
Aokai PTFE tip: High-reliability application (aerospace composites, high-voltage insulation) atan chuan puan hi a vawt hnuah emaw darkar 2 chhung emaw hman nghal turin kan rawt a ni.
Thupui – Parameter pawimawh tak takte Quick Reference
Indawtdan
Lum leh vawt tehna
Hun (a rih zawng a zirin) .
Critical Checks te pawh a awm
Moisture paih chhuahna
105-120°C (silane hmanga enkawl tan chuan <110°C) a ni.
10-30 min (thin atanga medium thleng); 1-2h (a rit) a ni.
A rit zawng (<0.1% inthlak danglamna); forced dehumidification tihchhuah a ni
Dewaxing / thermal hmanga tihfai a ni
300-450°C ( >500°C ngai lo)
Eng emaw zat atanga 10+ min
LOI <0.1% a ni a; meikhu dum a awm lo; var/thianghlim hmel
Coating hmain preheat hmasa phawt ang che
60-100°C thleng a ni
Second atanga 2 min
Fabric temp tehna a ni a; boruak kal dan inang tlang
Post-drying atanga dahkhawmna
<30°C, <40% RH a ni
Darkar 4-8 chhungin hman tur a ni
Sealed bag emaw drying room emaw a awm thei
Aokai PTFE hian kan fiberglass fabric zawng zawng tan pre-drying specification a pe vek a. Thil pawimawh tak tak atan chuan puan, pre-dried leh vacuum-sealed, hman nghal theih tura inpeih tawh kan supply thei a ni. I fabric chi leh a hnu lama i tih dan azirin custom drying parameters hriat duh chuan min rawn biak theih reng e.
