Thaum tshav kub kub Resistance Roj Resistance Automotive Fluoroelastomer

 Molecular Architecture & Performance Logic

Cov pob txha polymer yog tsim los ntawm  vinylidene fluoride (VDF) , hexafluoropropylene (HFP)  thiab  tetrafluoroethylene (TFE)  nyob rau hauv ib tug meej 40/30/30 piv, yielding  siab tshaj plaws fluorine cov ntsiab lus muaj nyob rau hauv ib tug coj mus muag FKM . This dense fluorocarbon matrix creates an  ultra-low surface energy barrier (< 18 mN m⁻¹)  that  repels non-polar hydrocarbons , polar ester oils , and  aggressive additives  such as methanol or biodiesel. Lub  peroxide-scavenging bisphenol-AF kho system  tshem tawm nkig tom qab kho embrittlement, muab  > 20 MPa tensile lub zog  thiab  35 kN m⁻¹ tsim kua muag zog  txawm tias tom qab  1,000 h @ 200 ° C. Qhov tshwm sim yog qhov sib xyaw ua ke uas  tawm ntawm silicone thiab HNBR los ntawm 3 ×  hauv tib lub hnab ntawv thermal thaum tuav  <3% ntim o hauv IRM903 siv roj.

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Precision Properties Table (ASTM Methods)

Cov Khoom	Txoj Kev Ntsuas	FKM-65B20 Tus Nqi	Kev Lag Luam
Qhov ntom	ASTM D 792 Cov khoom lag luam	1,82 g cm	1.80–1.85 Nws
Hardness	ASTM D 2240 Cov Lus Qhia	75 ± 3 Ntug A	70–80 : kuv
Tensile zog	ASTM D412	20.5 MPa	> 18 MPa
Elongation @ Sib	ASTM D412	230%	> 180%
Compression Teeb (200 ° C × 70 h)	ASTM D 395 Cov Lus Qhia	18%	<25%
Low-Temp Brittleness	ASTM D 2137 Cov khoom lag luam	-25 ° C	-20 ° C
Volume Swell hauv Roj C (23 ° C × 70 h)	ASTM D 471 Cov Lus Qhia	1.2%	<5%
Kev laus hauv Cua 250 ° C × 70 h	ASTM D 573 3	Tensile hloov - 5%	<-15%

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Automotive Application Spectrum

Turbocharger Systems

• Charge-air ducts  thiab  blow-off valve diaphragms  uas pom  260 ° C peaks  nyob rau hauv lub zog acceleration.

• Wastegate actuator seals  tiv thaiv  hluavtaws 5W-30 roj + soot.

Roj & SCR Circuits

• Direct-injection O-rings  sealing  350 bar diesel roj.

• AdBlue (DEF) injector seals  qhov twg  FKM-65B20 's  low extractables  tiv thaiv crystallization fouling.

Cav & Kis

• Roj txias gaskets  raug rau  150 ° C roj + kev co.

• E-motor Housing grommets  in PHEVs where  electrolyte vapors  attack standard elastomers.

Chassis & Brakes

• ESP hydraulic accumulator zais zis  xav tau  <0.1% roj permeation.

• Lub tshuab nqus tsev twj tso kua mis  tiv thaiv  ozone, txoj kev ntsev, thiab cov dej nres.

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 Kev Qhia Qhia & Cov Ntawv

• Compound Form : Pre-mixed  slab, sawb, los yog pellet  npaj rau  compression, hloov, los yog txhaj tshuaj molding.

• Kev Kho Mob Cycle : 5 min @ 170 ° C xovxwm +  tom qab kho 2 h @ 200 ° C  (cua) los yog  30 min @ 230 ° C chav  rau  <1% extractables.

• Slab Dimensions : 300 mm × 300 mm × 10 mm (kev cai 2-30 mm).

• Lub neej txee :  12 lub hlis  @ ≤ 25 ° C hauv  aluminium-foil / PE  ob lub hnab;  nitrogen-flushed  los tiv thaiv oxidative scorch.

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Ntawv pov thawj & Traceability

• ISO 9001: 2015  & IATF 16949: 2016  certified compounding nroj tsuag.

• REACH & RoHS 3.0  daim ntawv tshaj tawm tag nrho (SVHC <0.1%).

• SGS Test Report  –  kua muag, compression set, roj swell  (download PDF).

• Cov Lus Qhia Tsis Pom Zoo  - DRC-dawb qhov chaw.

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Supply Chain & Logistics

Order Type	MOQ	Lead Time	Packaging	Incoterm
Stock Compound	25 kg ib	7-10 hnub	PE hnab + thawv	EXW Shenzhen
Kev cai xim / Hardness	250 kg	3-4 lub lis piam	Nqus-sealed strip	FOB Shenzhen
Pelletized rau Extrusion	500 kg	4-5 lub lis piam	25 kg foil hnab	CIF Hamburg

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 Bundle nrog Stainless-Steel Cable Ties
Rau  turbocharger harnesses  raug  > 200 ° C , khub FKM-65B20 gaskets nrog peb  316 SS cable ties  ntsuas  -80 ° C rau + 538 ° C  rau  ua tiav thermal-chemical sealing system.