ตารางเปรียบเทียบคุณสมบัติของวัสดุโอริง ชนิดต่าง ๆ article

 

Properties Materials
NBR FPM EPDM
sulphur
EPDM
peroxide
VMQ HNBR FFPM FVMQ CR
Compression set 1 1 3 1 2 1 3 2 2
Tear strength 2 2 3 2 4 1 2 3 2
Abrasion resistance 2 2-3 2 2 4 2 3 3 2
Ageing resistance 4 1 2 2 1 2 1 1 2
Ozone resistance 4 1 2 2 1 2 1 1 2
Resistance to oil and grease 2 1 5 5 3 2 1 2 3
Fuel resistance 4** 2** 5 5 4 3 1 2 3
Resistance to hot water [ºC] 80** 80** 130 150 100 100** *** 100 80
Resistance to steam [ºC] - - 130 175 120* - *** 120* -
Heat resistance standard materials [ºC] 100 200 130 150 200 150 260 175 100
Heat resistance special materials [ºC] 120 - - - 250 - 330 - -
Low temperature resistance standard materials [ºC] -30 -15 -45 -50 -55 -30 -15 -55 -40
Low temperature resistance special materials [ºC] -50 -35 - - - -40 -35 - -50
1 = very good / 2 = good / 3 = average / 4 = low / 5 = weak
* = shor term / ** = better result only with special compound /
*** = depends on compound

 

 
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