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Rulon W2
聚四氟乙烯
Saint Gobain Performance Plastics

产品说明

Rulon® W2 is a black PTFE-based material developed for use in fresh-water applications. It exhibits low friction and excellent wear characteristics (one of the lowest wear rates in fresh water) as well as good thermal dissipation, preventing shaft distress. Its properties are enhanced when wet.

Rulon® W2 is DWGV (European) certified for applications in contact with drinking water.

It is compatible with most metal substrates and soft mating surfaces. Rulon W2 is a good alternative to Rulon J when superior chemical resistance is needed. However, it should not be used on very soft mating surfaces or where electrical insulation is desired.

总体

材料状态 • 已商用：当前有效   
供货地区 • 北美洲   
性能特点 • 低摩擦系数 • 耐化学性良好 • 耐磨损性良好 
 • 泵件 • 密封 • 水箱 
用途 • 电气部件 • 汽车领域的应用：  
   • 轴承 
 • 电器用具 • 水暖器材  
    
外观 • 黑色   
形式 • 可定制外形   
加工方法 • 机器加工 • 挤出  

物理性能 额定值单位制 测试方法
比重 2.09g/cm³ ASTM D792
吸水率 (24 hr) 0.0% ASTM D570
机械性能 额定值单位制 测试方法
抗张强度 (屈服) 12.4MPa ASTM D638
伸长率 (断裂) 70% ASTM D638
摩擦系数 0.22 ASTM D1894
负载变形 (10 MPa) 3.00% ASTM D621
热性能 额定值单位制 测试方法
线形膨胀系数  ASTM D696
流动: 26 到 93°C 0.00011cm/cm/°C 
流动: 26 到 149°C 0.00011cm/cm/°C 
横向: 26 到 93°C 0.000085cm/cm/°C 
横向: 26 到 149°C 0.000088cm/cm/°C 
导热系数 0.65W/m/K ASTM C177
补充信息  
Temperature, Typical Range: -400° to 550°F  
Flammability, ASTM D635: non-flammable  
Maximum Pressure(P): 1000 psi  
Maximum Velocity with no load (V-SFM): 400 ft/min  
Maximum PV (PxV): 10000 psi x ft/min  
Shaft Hardness - Minimum: Rb25  
Shaft Finish recommended: 8 ot 16 Ra  
Shaft Material: Hard, mild and stainless steel  
Chemical Resistance: Inert  
Coef. of Friction, ASTM D1894, static & dynamic: 0.15 to 0.30  

备注
1 一般属性：这些不能被视为规格。

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