TitleConical Rubber Spring for Train Bogie
Introduce
Specifications
NumberPerformance pointIndicatorUnitReference Standard
1Hardness (Shore A)50±5Shore AGB/T 531.1
2Tensile Strength≥14MPaGB/T 528
3Elongation at break≥400%GB/T 528
4Tear strength without incision≥26kN/mGB/T 529
5Metal to rubber bond strength≥4MPaGB/T 11211
6Constant compression set(Type A, 70ºC×72h)≤30%GB/T 7759
7Low temperature brittleness temperature≤-50ºCGB/T 1682
8Hot air aging (70ºC×24h) Hardness change≤7Shore AGB/T 3512
Hot air aging (70ºC×24h) Tensile strength change rate≥-25%GB/T 3512
Hot air aging (70ºC×24h) Standardized rate of elongation at break25%GB/T 3512
9DIN wear≤200mm³GB/T 9867
10Ozone aging resistance (40ºC×24h, 50pphm, relative humidity≤65%, pre-extension 5%)No cracks/GB/T 7762
11Compression creep performance, creep increment (70ºC×72h)≤0.045mm/mmGB/T 19242
12Oil resistance, mass change rate (70ºC×72h, No. 1 oil)≤80%GB/T 1690
13Cleaning agent resistance, hardness change (50ºC×72h, 5% oxalic acid aqueous solution)±5Shore AGB/T 1690
Note

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Tag Model NO. :Customized Type Specification :Customized Trademark :znspring Origin :Dezhou China HS Code :4016999090 Production Capacity :300 Sets / Day
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Create Time2023-03-13 06:13:16
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